Automotive high mount brake light improvement

• US 5,847,513 A
• Filed: 10/16/1995
• Issued: 12/08/1998
• Est. Priority Date: 10/16/1995
• Status: Expired due to Term

• Current Assignee: Rudolph P. Host
• Original Assignee: Rudolph P. Host
• Inventors: Host, Rudolph P.
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): VU, DAVID HUNG
• Application Number:
  US08/543,833
• Time in Patent Office: 1,149 Days
• Field of Search: 340/469, 340/467, 340/479, 340/475, 315/80, 315/81, 315/82, 315/83, 315/76, 315/77, 307/9.1, 307/10.1, 307/10.8
• US Class Current: 315/80
• CPC Class Codes: B60Q 1/302 mounted in the vicinity, e.g. in the middle, of a rear window
• CPC Class Codes: B60Q 1/44 for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal

Abstract

The improved system employs a logic unit coupled to the conventional brake switch, the turn signal and a clutch, or, optionally, an emission system low speed switch, and/or one or more safety-affecting parameters, viz., light level or other ambient conditions including fog or precipitation as sensed by applicable switch positions, to control the mode of illumination of the auxiliary light. The auxiliary light has the capability of operating in two illumination modes: steady-state as an extension of the main brake lights or flashing. Flashing of the auxiliary brake light can occur concurrently with or independent of the illumination state of the conventional main brake lights. Concurrent activation of both the brake and clutch or, optionally, the emission system low speed switch sets the flashing mode for the auxiliary high mount light. When one or more safety-affecting parameters are present, depressing only the brake pedal is necessary to set the flashing mode. This flashing mode is retained until both the brake switch and the clutch switch or, optionally, the emission system low speed switch are deactivated. Included is a method for precluding the flashing of the auxiliary light when the turn signal system is activated.

Claims

1. An improved brake light circuit for an automotive vehicle comprising an auxiliary high mount brake light:

a. a power source Vp, having a first low voltage side and a first high voltage side;

b. an auxiliary high mount brake light operatively connecting with said power source;

c. a brake switch operatively connecting with said power source;

d. a turn signal flasher operatively connecting with said power source;

e. said turn signal flasher having an output;

f. a turn signal switch operatively connecting with said turn signal flasher output and with said power source;

g. a first means for operatively connecting said auxiliary light to said flasher output for continuously flashing said auxiliary light and for operatively disconnecting said auxiliary light from said flasher output;

h. an isolation means operatively connecting with said first means and with said turn signal switch and with said brake switch for isolating said auxiliary high mount brake light from said flasher output for precluding the flashing mode of illumination of said auxiliary brake light for the duration of time that said turn signal switch is activated; and

i. said brake switch operatively connecting with said first means.

2. A brake light circuit according to claim 1 and comprising:

a. said first means comprising a relay; and

b. said first means for operatively connecting said turn signal flasher output to said auxiliary light for flashing said auxiliary light for the duration of time that said brake switch is closed.

3. A brake light circuit according to claim 1 and comprising:

a. said first means comprising a relay;

b. said auxiliary high mount brake light operatively connecting with said turn signal flasher output; and

c. said first means for operatively connecting said first low voltage side to said auxiliary high mount brake light for flashing said auxiliary light for the duration of time that said brake switch is closed.

4. A brake light circuit according to claim 1 and comprising:

a. said first means comprising a relay;

b. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

c. said turn signal switch operatively connecting with said NOR-gate;

d. said AND-gate operatively connecting with said brake switch;

e. said AND-gate operatively connecting with a FET;

f. said FET operatively connecting with said first low voltage side;

g. said relay operatively connecting with said FET and with said first high voltage side;

h. said power source operatively connecting with said AND-gate and with said NOR-gate;

i. with said brake switch being closed and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

j. with said brake switch being closed and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

5. A brake light circuit according to claim 1 and comprising:

a. said first means comprising a relay;

b. said isolation means comprising a switch;

c. said switch operatively connecting with said first low voltage side and with said relay;

d. with said brake switch being closed and with said turn signal switch in an inactive state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

e. with said brake switch being closed and with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

6. A brake light circuit according to claim 1 and comprising:

a. a second means for operatively connecting said auxiliary high mount brake light to said turn signal flasher;

b. said second means being set for connecting said auxiliary light to said flasher output when said brake switch and a third means are activated concurrently for indicating that said brake switch is closed and the automotive vehicle is operating at less than a predetermined velocity;

c. said second means being reset for disconnecting said auxiliary light from said flasher output when said brake switch and said third means are deactivated concurrently for indicating that said brake switch is open and said automotive vehicle is operating above said predetermined velocity; and

d. said second means and said third means operatively connecting with said power source.

7. A brake light circuit according to claim 6 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said flip-flop;

e. said flip-flop operatively connecting with a FET;

f. said FET operatively connecting with said first low voltage side;

g. said relay operatively connecting with said FET and with said first high voltage side;

h. with said flip-flop being set said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

i. with said flip-flop being reset said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

8. A brake light circuit according to claim 6 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay operatively connecting with said first relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said memory device;

e. with said memory device being set said first relay is energized and said auxiliary light high voltage side is connected to said turn signal flasher output and said auxiliary light is flashing; and

f. with said memory device being reset said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

9. A brake light circuit according to claim 6 and comprising:

a. said first means comprising a relay;

b. said second means comprising said third means operatively connecting with said relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said memory device operatively connecting with said brake switch;

e. with said memory device being set said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

f. with said memory device being reset said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

10. A brake light circuit according to claim 6 wherein:

said isolation means operatively connecting with said first means and with said second means and with said turn signal switch for isolating said auxiliary high mount brake light from said flasher for precluding the flashing mode of illumination of said auxiliary brake light for the duration of time that said turn signal switch is activated.

11. A brake light circuit according to claim 10 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said flip-flop;

e. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

f. said turn signal switch operatively connecting with said NOR-gate;

g. said AND-gate operatively connecting with said flip-flop;

h. said AND-gate operatively connecting with a FET;

i. said FET operatively connecting with said first low voltage side;

j. said relay operatively connecting with said FET and with said first high voltage side;

k. said power source operatively connecting with said NOR-gate and with said AND-gate;

l. with said flip-flop being set and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

m. with said flip-flop being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

12. A brake light circuit according to claim 10 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay operatively connecting with said first relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said memory device;

e. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

f. said turn signal switch operatively connecting with said NOR-gate;

g. said AND-gate operatively connecting with said memory device;

h. said AND-gate operatively connecting with a FET;

i. said FET operatively connecting with said first low voltage side;

j. said memory device connecting with said FET and with said first high voltage side;

k. said brake switch operatively connecting with said AND-gate;

l. said power source operatively connecting with said NOR-gate and with said AND-gate;

m. with said memory device being set and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

n. with said memory device being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

13. A brake light circuit according to claim 10 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay operatively connecting with said first relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said memory device;

e. said isolation means comprising a switch operatively connecting with said first low voltage side and with said memory device;

f. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

g. with said turn signal switch in an active state said switch is open and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

14. A brake light circuit according to claim 10 and comprising:

a. said first means comprising a relay;

b. said second means comprising said third means operatively connecting with said relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said memory device operatively connecting with said brake switch;

e. said isolation means comprising a switch operatively connecting said first low voltage side with said memory device;

f. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

g. with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

15. A brake light circuit according to claim 10 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connected to said flip-flop;

e. said flip-flop operatively connecting with a FET;

f. said FET operatively connecting with said first low voltage side and with said first means;

g. said isolation means comprising a switch operatively connecting with said first high voltage side and with said relay;

h. with said flip-flop being set and with said turn signal switch in an inactive state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

i. with said flip-flop being set and with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

16. A brake light circuit according to claim 10 and comprising:

a. said second means being set for connecting said auxiliary light to said flasher output when said brake switch and a fourth means are activated concurrently for indicating that said brake switch is in a closed position and adverse conditions are present; and

b. said fourth means operatively connecting with said power source.

17. A brake light circuit according to claim 16 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said flip-flop;

e. said fourth means operatively connecting with said flip-flop;

f. said fourth means comprising an OR-gate operatively connecting with at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

g. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

h. said turn signal switch operatively connecting with said NOR-gate;

p1 i. said AND-gate operatively connecting with said flip-flop;

j. said AND-gate operatively connecting with a FET;

k. said FET operatively connecting with said first low voltage side;

l. said relay operatively connecting with said FET and with said first high voltage side;

m. said power source operatively connecting with said NOR-gate and with said AND-gate;

n. with said flip-flop being set and with said turn signal switch in an inactive state said AND-gate output is high and said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

o. with said flip-flop being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

18. A brake light circuit according to claim 16 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay and a third relay operatively connecting with said first relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said memory device;

e. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

f. said brake switch operatively connecting with said AND-gate;

g. diodes operatively connected to form an OR-gate;

h. said fourth means comprising said OR-gate operatively connecting with at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

i. said fourth means operatively connecting with said memory device;

j. said turn signal switch operatively connecting with said NOR-gate;

k. said AND-gate operatively connecting with said brake switch;

l. said AND-gate operatively connecting with a FET;

m. said FET operatively connecting with said first low voltage side;

n. said memory device operatively connecting with said FET and with said first high voltage side;

o. said power source operatively connecting with said NOR-gate and with said AND-gate;

p. with said memory device being set and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

q. with said memory device being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

19. A brake light circuit according to claim 16 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay and a third relay operatively connecting with said first relay to form a memory device;

c. said third means comprising an emission system low speed switch;

d. said third means and said brake switch operatively connecting with said memory device;

e. diodes operatively connected to form an OR-gate;

f. said fourth means comprising said OR-gate operatively connecting with at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

g. said fourth means operatively connecting with said memory device;

h. said isolation means comprising a switch operatively connecting with said first low voltage side and with said memory device;

i. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

j. with said turn signal switch in an active state said switch is open and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

20. A brake light circuit according to claim 16 and comprising:

a. said first means comprising a relay;

b. said second means comprising said third means operatively connecting with said relay to form said memory device;

c. said fourth means comprising operatively connecting at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

d. said fourth means operatively connecting with said memory device;

e. said memory device operatively connecting with said brake switch;

f. said isolation means comprising a switch operatively connecting with said first low voltage side and with said memory device;

g. with said memory device being set and with said turn signal switch in an active state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

h. with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

21. A brake light circuit according to claim 1 and comprising:

a. a clutch switch;

b. a second means for operatively connecting said auxiliary high mount brake light to said turn signal flasher;

c. said second means being set for connecting said auxiliary light to said flasher output when said brake switch and said clutch switch are activated concurrently for indicating that said brake switch is closed and the clutch is disengaged;

d. said second means being reset for disconnecting said auxiliary light from said flasher output when said brake switch and said clutch switch are deactivated concurrently for indicating that said brake switch is open and said clutch is engaged; and

e. said clutch switch and said second means operatively connecting with said power source.

22. A brake light circuit according to claim 21 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said clutch switch and said brake switch operatively connecting with said flip-flop;

d. said flip-flop operatively connecting with a FET;

e. said FET operatively connecting with said first low voltage side;

f. said relay operatively connecting with said FET and with said first high voltage side;

g. with said flip-flop being set said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

h. with said flip-flop being reset said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

23. A brake light circuit according to claim 21 and comprising;

a. said first means comprising a first relay;

b. said second means comprising a second relay operatively connecting with said first relay to form a memory device;

c. said clutch switch and said brake switch operatively connecting with said memory device;

d. with said memory device being set said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

e. with said memory device being reset said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

24. A brake light circuit according to claim 21 and comprising:

a. said first means comprising a relay;

b. said second means comprising said clutch switch operatively connecting with said relay to form a memory device;

c. said memory device operatively connecting with said brake switch;

d. with said memory device being set said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

e. with said memory device being reset said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

25. A brake light circuit according to claim 21 wherein:

said isolation means operatively connecting with said first means and with said second means and with said turn signal switch for isolating said auxiliary high mount brake light from said flasher for precluding the flashing mode of illumination of said auxiliary brake light for the duration of time that said turn signal switch is activated.

26. A brake light circuit according to claim 25 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said clutch switch and said brake switch operatively connecting with said flip-flop;

d. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

e. said turn signal switch operatively connecting with said NOR-gate;

f. said AND-gate operatively connecting with said flip-flop;

g. said AND-gate operatively connecting with a FET;

h. said FET operatively connecting with said first low voltage side;

i. said relay operatively connecting with said FET and with said first high voltage side;

j. said power source operatively connecting with said NOR-gate and with said AND-gate;

k. with said flip-flop being set and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

m. with said flip-flop being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

27. A brake light circuit according to claim 25 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay operatively connecting with said first relay to form a memory device;

c. said clutch switch and said brake switch operatively connecting with said memory device;

d. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

e. said turn signal switch operatively connecting with said NOR-gate;

f. said AND-gate operatively connecting with said memory device;

g. said AND-gate operatively connecting with a FET;

h. said FET operatively connecting with said first low voltage side;

i. said memory device operatively connecting with said FET and with said first high voltage side;

j. said brake switch operatively connecting with said AND-gate;

k. said power source operatively connecting with said NOR-gate and with said AND-gate;

l. with said memory device being set and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

m. with said memory device being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

28. A brake light circuit according to claim 25 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay operatively connecting with said first relay to form a memory device;

c. said clutch switch and said brake switch operatively connecting with said memory device;

d. said isolation means comprising a switch operatively connecting with said first low voltage side and with said memory device;

e. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

f. with said turn signal switch in an active state said switch is open and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

29. A brake light circuit according to claim 25 and comprising:

a. said first means comprising a relay;

b. said second means comprising said clutch switch operatively connecting with said relay to form a memory device;

c. said memory device operatively connecting with said brake switch;

d. said isolation means comprising a switch operatively connecting said first low voltage side with said memory device;

e. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

f. with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

30. A brake light circuit according to claim 25 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said clutch switch and said brake switch operatively connected to said flip-flop;

d. said flip-flop operatively connecting with a FET;

e. said FET operatively connecting with said first low voltage side and with said first means;

f. said isolation means comprising a switch operatively connecting with said first high voltage side and with said relay;

g. with said flip-flop being set and with said turn signal switch in an inactive state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

h. with said flip-flop being set and with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

31. A brake light circuit according to claim 25 and comprising:

a. said second means being set for connecting said auxiliary light to said flasher output when said brake switch and a third means are activated concurrently for indicating that said brake switch is in a closed position and adverse conditions are present; and

b. said third means operatively connecting with said power source.

32. A brake light circuit according to claim 31 and comprising:

a. said first means comprising a relay;

b. said second means comprising a flip-flop;

c. said clutch switch and said brake switch operatively connecting with said flip-flop;

d. said third means operatively connecting with said flip-flop;

e. said third means comprising an OR-gate operatively connecting with at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

f. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

g. said turn signal switch operatively connecting with said NOR-gate;

h. said AND-gate operatively connecting with said flip-flop;

i. said AND-gate operatively connecting with a FET;

p1 j. said FET operatively connecting with said first low voltage side;

k. said relay operatively connecting with said FET and with said first high voltage side;

l. said power source operatively connecting with said NOR-gate and with said AND-gate;

m. with said flip-flop being set and with said turn signal switch in an inactive state said AND-gate output is high and said FET is conducting and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

n. with said flip-flop being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

33. A brake light circuit according to claim 31 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay and a third relay operatively connecting with said first relay to form a memory device;

c. said clutch switch and said brake switch operatively connecting with said memory device;

d. said isolation means comprising a NOR-gate operatively connecting with an AND-gate;

e. said brake switch operatively connecting with said AND-gate;

f. diodes operatively connected to form an OR-gate;

g. said third means comprising said OR-gate operatively connecting with at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

h. said third means operatively connecting with said memory device;

i. said turn signal switch operatively connecting with said NOR-gate;

j. said AND-gate operatively connecting with said brake switch;

k. said AND-gate operatively connecting with a FET;

l. said FET operatively connecting with said first low voltage side;

m. said memory device operatively connecting with said FET and with said first high voltage side;

n. said power source operatively connecting with said NOR-gate and with said AND-gate;

o. with said memory device being set and with said turn signal switch in an inactive state not connecting with said NOR-gate said AND-gate output is high and said FET is conducting and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

p. with said memory device being set and with said turn signal switch in an active state said AND-gate output is low and said FET is not conducting and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

34. A brake light circuit according to claim 31 and comprising:

a. said first means comprising a first relay;

b. said second means comprising a second relay and a third relay operatively connecting with said first relay to form a memory device;

c. said clutch switch and said brake switch operatively connecting with said memory device;

d. diodes operatively connected to form an OR-gate;

e. said third means comprising said OR-gate operatively connecting with at least one of the following groups consisting of a headlight switch and a fog light switch and a windshield wiper switch;

f. said third means operatively connecting with said memory device;

g. said isolation means comprising a switch operatively connecting with said first low voltage side and with said memory device;

h. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said first relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

i. with said turn signal switch in an active state said switch is open and said first relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

35. A brake light circuit according to claim 31 and comprising:

a. said first means comprising a relay;

b. said second means comprising said clutch switch operatively connecting with said relay to form a memory device;

c. said third means comprising operatively connecting at least one of the following group consisting of a headlight switch and a fog light switch and a windshield wiper switch;

d. said third means operatively connecting with said memory device;

e. said memory device operatively connecting with said brake switch;

f. said isolation means comprising a switch operatively connecting with said first low voltage side and with said memory device;

g. with said memory device being set and with said turn signal switch in an inactive state said switch is closed and said relay is energized and said auxiliary light is connected to said turn signal flasher output and said auxiliary light is flashing; and

h. with said turn signal switch in an active state said switch is open and said relay is not energized and said auxiliary light is connected to said brake switch and said auxiliary light is an extension of the main brake lights.

36. An improved brake light circuit for an automotive vehicle comprising:

a. a means for operatively connecting the auxiliary high mount brake light with the brake switch and with the turn signal flasher output and with the turn signal switch for changing the connection of said auxiliary light from that of being connected to the main brake lights to that of being connected to said turn signal flasher output for continuously flashing said auxiliary light; and

b. an isolation means for precluding the flashing of said auxiliary light when said turn signal switch is activated.

37. A brake light circuit according to claim 36 wherein:

said means comprising a relay and said isolation means comprising a logic circuit.

38. A brake light circuit according to claim 37 and comprising:

a. a means for providing an indicator for displaying the illumination mode of said auxiliary high mount brake light; and

b. said means mounted in the automotive vehicle instrument panel.

39. An improved brake light circuit according to claim 37 wherein:

a means for selecting a turn signal flasher having an inherent audible operational characteristic for indicating the flashing mode of operation of said auxiliary high mount brake light.

40. A process for making an improved brake light circuit for an automotive vehicle comprising an auxiliary high mount brake light:

a. selecting a power source having a first low voltage side and a first high voltage side;

b. operatively connecting an auxiliary high mount brake light with said power source;

c. operatively connecting a brake switch with said power source;

d. operatively connecting a turn signal flasher, having an output, with said power source;

e. operatively connecting said auxiliary light to said flasher output with a first means for continuously flashing said auxiliary light and operatively disconnecting said auxiliary light from said flasher output;

f. operatively connecting a turn signal switch with said first low voltage side and with said turn signal flasher output; and

g. operatively connecting said first means and said turn signal switch with an isolation means for isolating said auxiliary high mount brake light from said flasher for precluding the flashing mode of illumination of said auxiliary brake light for the duration of time that said turn signal switch is activated.

41. A process according to claim 40 and comprising:

a. operatively connecting a second means to said first means for operatively connecting said auxiliary high mount brake light to said turn signal flasher output;

b. operatively connecting a third means to said second means;

c. concurrently activating said brake switch and said third means to set said second means for connecting said auxiliary light to said flasher output; and

d. concurrently deactivating said brake switch and said third means to reset said second means for disconnecting said auxiliary light from said flasher output and for connecting said auxiliary light to said brake switch.

42. A process according to claim 41 and comprising:

a. selecting as said first means the relay;

b. said second means comprising a memory device;

c. operatively connecting said memory device comprising said third means with said relay to form said memory device;

d. operative connecting said memory device with said brake switch;

e. operative connecting said memory device with said power source;

f. setting said memory device for connecting said auxiliary light to said turn signal flasher output; and

g. resetting said memory device for connecting said auxiliary light to said brake switch.

43. A process according to claim 41 and comprising:

a. said second means comprising a memory device;

b. said third means from a group comprising a clutch switch and an emission system low speed switch;

c. concurrently activating said brake switch and said third means for setting said second means for connecting said auxiliary light to said flasher output; and

d. concurrently deactivating said brake switch and said third means for resetting said second means for disconnecting said auxiliary light from said flasher output.

44. A process according to claim 43 and comprising:

a. operatively connecting a fourth means to said second means;

b. said fourth means from a group comprising a headlight switch and a fog light switch and a windshield wiper switch; and

c. concurrently activating said brake switch and said fourth means to set said second means to connect said auxiliary light to said flasher output for indicating that said brake switch is closed at a time when adverse conditions exist.

45. A process according to claim 44 and comprising:

a. providing a means for visually indicating the illumination mode of the auxiliary high mount brake light; and

b. said means being an integral part of the automotive vehicle instrument panel.