Dynamic traffic light

• US 6,211,780 B1
• Filed: 10/23/1998
• Issued: 04/03/2001
• Est. Priority Date: 01/23/1996
• Status: Expired due to Fees

• Current Assignee: Hamid R. Kashefy
• Original Assignee: Hamid R. Kashefy
• Inventors: Kashefy, Hamid R
• Primary Examiner(s): TONG, NINA C
• Application Number:
  US08/718,380
• Time in Patent Office: 893 Days
• Field of Search: 340/466, 340/467, 340/479, 340/463, 340/464, 340/468, 340/471, 340/472, 340/476, 340/477, 340/478
• US Class Current: 340/466
• CPC Class Codes: B60Q 1/444 with indication of the braking strength or speed changes, e.g. by changing shape or intensity of the indication B60Q1/1407, B60Q1/442, B60Q1/447 take precedence

Abstract

A vehicle signaling display device to be mounted on an automotive vehicle, so that signaling lights of the device are visible for drivers of following vehicles, includes orange or amber, red and green lights and includes a system specifically designed to count speed sensor pulses for measuring speed of any vehicle of any make and model on which the device is installed, for controlling the signaling lights in accordance with the speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle, in order to perform a set of standardized operations of the signaling lights for dynamically preventing traffic crashes. The device (a) turns on a distinct arrangement of a number of lights of the signaling lights for indicating different ranges of the speed of the vehicle so that a red light of the signaling lights remains lit without flashing regardless of braking as advanced stop sign indicating very low speed or stationary state of the vehicle, orange lights of the signaling lights remain lit indicating low speed of the vehicle and green lights remain lit indicating forward motion with constant speed; (b) flashes orange lights whenever the speed of the vehicle is reduced by a standardized value without braking; (c) flashes red lights whenever the speed of the vehicle is reduced by the standardized value by braking; (d) flashes green lights to indicate acceleration by the standardized value; so that as the rate of deceleration increases, the red or orange lights flash faster.

Claims

1. A vehicle signalling display device, to be mounted on an automotive vehicle so that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) means for controlling said signalling lights in accordance with speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle; and

b) means for visualizing a standarized amount of decrease in the speed of the vehicle by flashing at least one light of said signalling lights when the speed of the vehicle is decreased by the standardized amount;

c) means for flashing at least one red light (LR3) of said signalling lights every time that the speed of the vehicle is greater than a first predetermined speed and the speed is reduced at least by a predetermined value while brake is being applied on the vehicle and speed sensor means of the vehicle is generating pulses;

wherein said red light (LR3) flashes faster and glows brighter as the rate of deceleration of the vehicle increases by braking; and

d) means for flashing first and second orange lights (LO1, LO2) of said signalling lights every time that the speed of the vehicle is greater than said first predetermined speed and the speed is reduced at least by the predetermined value while the brake is not being applied on the vehicle, in order to indicate the rate of the deceleration of the vehicle without braking.

2. The vehicle signalling display device according to claim 1, further comprising means for turning on said first and second orange lights (LO1, LO2) of said signalling lights without flashing while the speed of the vehicle is less than a second predetermined speed and the brake is not being applied on the vehicle;

wherein said second predetermined speed is greater than said first predetermined speed.

3. The vehicle signalling display device according to claim 2, further comprising means for flashing said first and second orange lights (LO1, LO2) and third orange light (LO3) of said signalling lights whenever the speed of the vehicle is greater than said first predetermined speed and the speed is reduced at least by a standardized value while the brake is not being applied on the vehicle.

4. The vehicle signalling display device according to claim 2, further comprising means for turning on first and second green lights (LG1, LG2) of said signalling lights while the speed of the vehicle is greater than said second predetermined speed, in order to indicate forward motion of the vehicle with constant speed.

5. The vehicle signalling display device according to claim 4, further comprising means for flashing third green light (LG3) of said signalling lights when the speed of the vehicle is greater than said second predetermined speed and the speed is increased at least by said standardized value.

6. A vehicle signalling display device, to be mounted on an automotive vehicle so that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) means for controlling said signalling lights in accordance with speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle; and

b) means for turning on a distinct arrangement of a number of said signalling lights for indicating different ranges of the speed of the vehicle;

c) means for turning on at least one red light (LR5) of said signalling lights steady without flashing and regardless of braking while the speed of the vehicle is between a first predetermined speed and zero km/h and while the vehicle is stopped;

wherein said red light (LR5) is also turned on automatically without flashing if at least the drive wheels of the vehicle are blocked by applying brake on the vehicle for preventing creation of input pulses to said device by a speed sensor means of the vehicle while the vehicle is in motion at any speed;

d) means for turning on at least one orange (LO1) of said signalling lights while the speed of the vehicle is less than a second predetermined speed and greater than said first predetermined speed, and only while the brake is not being applied on the vehicle, in order to indicate low speed of the vehicle

e) means for turning on at least one green light (LG1) of said signalling lights only when the speed of the vehicle is greater than or equal to said second predetermined speed while the brake is not being applied on the vehicle, in order to indicate forward motion of the vehicle with constant speed.

7. The vehicle signalling display device according to claim 6, further comprising:

a) means for flashing a first light (LO3) of said signalling lights only when said device realizes that the speed of the vehicle is greater than said first predetermined speed and the speed of the vehicle is reduced.

8. The vehicle signalling display device according to claim 7, further comprising means for flashing second and third red lights (LR3, LR4) of said signalling lights when the speed of the vehicle is reduced at least by a standardized value while the brake is being applied on the vehicle;

wherein said red lights (LR3, LR4) flash faster and glow brighter as the magnitude of deceleration increases.

9. A vehicle signalling display device to be mounted on a vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) means for turning on a first light (LR5) of said signalling lights, steady without flashing regardless of operation and position of brake pedal of the vehicle, only when said device realizes that speed of the vehicle is less than a first predetermined speed and the brake could be either applied or not; and

b) means for flashing second light (LO3) of said signalling lights only every time when the speed of the vehicle is reduced by a predetermined unit without applying the brake and when said device realizes that the speed of the vehicle is greater than said first predetermined speed and the vehicle is decelerating only by without applying the brake.

10. The vehicle signalling display device according to claim 9, further comprising means for turning on third light (LO1) of said signalling lights while the speed of the vehicle is greater than said first predetermined speed and less than a second predetermined speed.

11. A vehicle signalling display device to be mounted on a vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) timebase generator means for generating equal time intervals;

b) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;

wherein, at the end of a time interval, a value that is present in said counter means corresponds to speed of the vehicle at the end of the time interval;

c) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;

wherein, a value that is stored in said memory means at the end of a time interval is used as reference value at the end of each of the equal time intervals;

d) means for realizing a predetermined speed of the vehicle regardless of operation and position of accelerator pedal of the vehicle, in order to turn on a red light (LR5) of said signalling lights steady without flashing regardless of braking, whenever said device realizes that speed of the vehicle is less than the predetermined speed based upon the result from said timebase generator means, counter means and memory means.

12. A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) timebase generator means for generating equal time intervals;

b) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;

wherein, at the end of a time interval, a value that is present in said counter means corresponds to speed of the vehicle at the end of the time interval;

c) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;

wherein, a value that is stored in said memory means at the end of a time interval is used as reference value at the end of each of the equal time intervals;

d) means for realizing that said reference value is equal to, less than or greater than a predetermined speed for determining different ranges of the speed of the vehicle; and

e) means for turning on a red light (LR5) of said signalling lights (IC14, IC15b, Q5, relay 3, relay 5) steady without flashing regardless of position and operation of brake pedal of the vehicle, whenever said device realizes that said reference value is less than a predetermined speed.

13. The vehicle signalling display device according to claim 12, further comprising:

a) first comparator means (IC2) for comparing a value that is present in said counter means with said reference value at the end of each of the equal time intervals;

wherein at the end of each of the equal time intervals said first comparator means generates at least one pulse in order to indicate that a value that is present in said counter means is equal to, less than or greater than said reference value;

b) subtracter means (IC4, IC5) for subtracting, at the end of each of the equal time intervals, a value that is present in said counter means from said reference value or for subtracting said reference value from a value that is present in said counter means, in order to provide a remainder value which is equivalent to the magnitude of difference between said reference value and a value that is present in said counter means.

14. The vehicle signalling device according to claim 13, further comprising:

a) second comparator means (1C6) for comparing a predetermined value with said remainder value;

said second comparator means generates at least one pulse in order to indicate that said remainder value is equal to, less than or greater than said predetermined value;

b) wherein said input pulses are generated by speed sensor means of the vehicle and, in accordance with duration of the equal time intervals, said speed sensor means of the vehicle is adapted for a differential ratio and/or wheel size of the vehicle of the vehicle, or the differential ratio and/or wheel size are adapted for said speed sensor means of the vehicle, or the differential ratio is adapted for the wheel size or the wheel size is adapted for the differential ratio, in order to generate said input pulses to said device so that at the end of each of the equal time intervals, the number of pulses counted by said counter means is equal to the speed of the vehicle;

wherein said adaptations result in standarization of said predetermined value;

c) gate means (IC7-c) for generating an A pulse at the end of a time interval for indicating decrease, at least by said predetermined value, in a value that is present in said counter means at the end of the time interval relevant to said reference;

wherein said gate means generates said A pulse if, at the end of the time interval, said gate means is simultaneously fed (I) by an (IC7-a) pulse resulted from a comparison performed by said first comparator means indicating that the value that is present in said counter means at the end of the time interval is less than said reference value, and (II) by an (IC8-b) pulse resulted from a comparison performed by said second comparator means indicating that said remainder value is equal to or greater than said predetermined value;

d) said counter means is reset to zero at the end of each of the equal time intervals, in order to count said input pulses to said device during next time interval;

wherein, at the end of a time interval, a value that is present in said counter means is stored in said memory means before resetting said counter means to zero if, at the end of the time interval, said (IC8-b) pulse is generated;

e) means for turning on a distinct arrangement of a number of said signalling lights, in order to visualize said different ranges of the speed of the vehicle; and

f) means for flashing a light of said signalling lights if, at the end of a time interval, said A pulse is generated.

15. The vehicle signalling display device according to claim 12, further comprising:

means for visualizing a standardized amount of decrease in the speed of the vehicle by flashing at least one light of said signalling lights when the speed of the vehicle is decreased by the standardized amount.

16. The vehicle signalling display device according to claim 12, further comprising:

means for turning on a distinct arrangement of a number of said signalling lights for indicating different ranges of the speed of the vehicle.

17. A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) timebase generator means for generating equal time intervals;

b) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;

wherein, at the end of a time interval, a value that is present in said counter means corresponds to speed of the vehicle at the end of the time interval;

c) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;

wherein, a value that is stored in said memory means at the end of a time interval is used as reference value at the end of each of the equal time intervals;

d) means for realizing that said reference value is equal to, less than or greater than a predetermined speed for determining different ranges of the speed of the vehicle;

e) first comparator means (IC2) for comparing a value that is present in said counter means with said reference value at the end of each of the equal time intervals;

wherein at the end of each of the equal time intervals said first comparator means generates at least one pulse in order to indicate that a value that is present in said counter means is equal to, less than or greater than said reference value;

f) subtracter means (IC4, IC5) for subtracting, at the end of each of the equal time intervals, a value that is present in said counter means from said reference value or for subtracting said reference value from a value that is present in said counter means, in order to provide a remainder value which is equivalent to the magnitude of difference between said reference value and a value that is present in said counter means;

g) second comparator means (IC6) for comparing a predetermined value with said remainder value;

said second comparator means generates at least one pulse in order to indicate that said remainder value is equal to, less than or greater than said predetermined value;

h) gate means (IC7-c) for generating an A pulse at the end of a time interval for indicating decrease, at least by said predetermined value, in a value that is present in said counter means at the end of the time interval relevant to said reference value;

wherein said gate means generates said A pulse if, at the end of the time interval, said gate means is simultaneously fed (I) by an (IC7-a) pulse resulted from a comparison performed by said first comparator means indicating that the value that is present in said counter means at the end of the time interval is less than said reference value, and (II) by an (IC8-b) pulse resulted from a comparison performed by said second comparator means indicating that said remainder value is equal to or greater than said predetermined value; and

i) said counter means is reset to zero at the end of each of the equal time intervals, in order to count said input pulses to said device during next time interval;

wherein, at the end of a time interval, a value that is present in said counter means is stored in said memory means before resetting said counter means to zero if, at the end of the time interval, said (IC8-b) pulse is generated.

18. The vehicle signalling display device according to claim 17, further comprising means for turning on a distinct arrangement of a number of said signalling lights, in order to visualize said different ranges of the speed of the vehicle.

19. The vehicle signalling display device according to claim 18, further comprising means for flashing at least one light of said signalling lights if, at the end of a time interval, said A pulse is generated.

20. The vehicle signalling display device according to claim 17, wherein said input pulses are generated by speed sensor means of the vehicle and, in accordance with duration of the equal time intervals, said speed sensor means of the vehicle is adapted for a differential ratio and/or wheel size of the vehicle or the differential ratio and/or wheel size are adapted for said speed sensor means of the vehicle, or the differential ratio is adapted for the wheel size, or the wheel size is adapted for the differential ratio, in order to generate said input pulses to said device so that at the end of each of the equal time intervals, the number of pulses counted by said counter means is equal to the speed of the vehicle;

wherein said adaptations result in standardization of said predetermined value for implementation of standardized operations of said signalling lights on vehicles of different make and model.

21. The vehicle signalling display device according to claim 17, further comprising a gate means (IC7-d) for generating an B pulse at the end of a time interval for indicating increase, at least by said predetermined value, in a value that is present in said counter means at the end of the time interval relevant to said reference value;

wherein said gate means generates said B pulse if, at the end of the time interval, said gate means is simultaneously fed by (I) an (IC7-b) pulse resulted from a comparison performed by said first comparator means indicating that the value that is present in said counter means at the end of the time interval is greater than said reference value, and (II) by said (IC8-b) pulse.

22. A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) means for controlling said signalling lights in accordance with speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle;

b) means for turning on a distinct arrangement of a number of said signalling lights includes red, orange or amber, and green lights, in order to indicate different ranges of the speed of the vehicle;

c) means for flashing first and second red lights (LR3, LR4) of said signalling lights every time that the speed of the vehicle is reduced at least by a standardized value while brake is being applied on the vehicle and speed sensor means of the vehicle is generating input pulses to said device;

wherein said red lights (LR3, LR4) flash faster and glow brighter as the magnitude of deceleration of the vehicle increases by braking;

d) means for turning on third red light (LR5) of said signalling lights steady without flashing and regardless of braking while the speed of the vehicle is less than a first predetermined speed;

e) means for turning on first and second orange lights (LO1, LO2) of said signalling lights while the speed of the vehicle is less than a second predetermined speed and greater than said first predetermined speed, and the brake is not being applied on the vehicle, in order to indicate low speed of the vehicle;

f) means for flashing said first and second orange lights (LO1, LO2) and third orange light (LO3) of said signalling lights every time that the speed of the vehicle is greater than said first predetermined speed and the speed is reduced at least by the standardized value while the brake is not being applied on the vehicle, in order to indicate the rate of deceleration of the vehicle without braking;

g) means for turning on first and second green lights (LG1, LG2) of said signalling lights only when the speed of the vehicle is grater than or equal to said second predetermined speed while the brake is not being applied on the vehicle, in order to indicate forward motion of the vehicle with constant; and

h) means for flashing third green light (LG3) of said signalling lights when the speed of the vehicle is greater than said second predetermined speed and the speed is increased at least by the standardized value.

23. A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

a) pulse generator means (IC12, IC13) for generating a pulse at the end of equal time intervals;

b) delay pulse generator means for creating three pulses from each pulse generated by said pulse generator means;

an decision pulse (IC9-a), immediately followed by an update pulse (IC9-b), immediately followed by an clear pulse (IC10-a, IC10-b);

c) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;

wherein, at the end of a time interval, a value that is present in said counter means is equal to speed of the vehicle at the end of the time interval;

d) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;

wherein a value stored in said memory means is used as reference value at the end of each of the equal time intervals;

e) means for realizing that said reference value is equal to, less than or greater than a predetermined speed for determining different ranges of the speed of the vehicle;

f) first comparator means (IC2) for comparing a value that is present in said counter means with said reference value at the end of each of the equal time intervals;

wherein, at the end of a time interval, outputs of said first comparator mean in conjunction with said decision pulse either result in generating an (IC7-a) pulse indicating decrease in a value that is present in said counter means at the end of the time interval relevant to said reference value, or result in generating an (IC7-b) pulse indicating increase in the value that is present in said counter means at the end of the time interval relevant to said reference value;

g) subtracter means (IC4, IC5) for subtracting, at the end of each of the equal time intervals, a value that is present in said counter means from said reference value, or for subtracting said reference value from a value that is present in said counter means in order to provide a remainder value which is equivalent to the magnitude of difference between said reference value and a value that is present in said counter means;

h) second comparator means (IC6) for comparing a predetermined value with said remainder value at the end of each of the equal time intervals;

wherein, at the end of a time interval, said second comparator means results in generating an (IC8-b) pulse indicating that said remainder value is greater than said predetermined value or indicating that the speed of the vehicle is varied by said predetermined value;

i) first gate means (IC7-c), second gate means (IC7-d) and third gate means (IC9-d);

j) said first gate means is enabled to produce an A pulse at the end of a time interval in order to indicate decrease, at least by said predetermined value, in a value that is present in said counter means relevant to said reference value if, at the end of the time interval, said first gate means is simultaneously fed by said (IC7-a) pulse, and by said (IC8-b) pulse;

k) said second gate means is enabled to produce an B pulse at the end of a time interval for indicating increase, at least by said predetermined value, in a value that is present in said counter means relevant to said reference value if, at the end of the time interval, said second gate means is simultaneously fed by said (IC7-b) pulse and by said (IC8-b) pulse; and

l) said third gate means updates said reference value to a value that is present in said counter means at the end of a time interval if, at the end of the time interval, said third gate means is simultaneously fed by said update pulse and by said (IC8-b) pulse; and

m) said clear pulse resets said counter means to zero at the end of each of the equal time intervals, in order to count said input pulses to said device during next time interval.

24. The vehicle signalling display device according to claim 23, wherein said input pulses are generated by speed sensor means of the vehicle and, in accordance with duration of the equal time intervals, said speed sensor means of the vehicle is adapted for a differential ratio and/or wheel size of the vehicle or the differential ratio and/or wheel size are adapted for said speed sensor means of the vehicle, or the differential ratio is adapted for the wheel size, or the wheel size is adapted for the differential ratio, in order to generate said input pulses to said device so that at the end of each of the equal time intervals, the magnitude of the number of pulses counted by said counter means is equal to the magnitude of the speed of the vehicle;

wherein said adaptations result in standardization of said predetermined value for implementation of standardized operations of said signalling lights on vehicles of different make and model.

25. The vehicle signalling display device according to claim 24, further comprising:

a) means for flashing first and second red lights (LR3, LR4) of said signalling lights every time said A pulse is generated while brake is being applied on the vehicle and said speed sensor means of the vehicle is generating pulses;

wherein said red lights (LR3, LR4) flash faster and glow brighter as the magnitude of deceleration of the vehicle increases;

b) means for turning on third red light (LR5) of said signalling lights steady without flashing and regardless of braking while the speed of the vehicle is less than a first predetermined speed;

c) means for turning on first and second orange lights (LO1, LO2) of said signalling lights while the speed of the vehicle is less than a second predetermined speed and greater than said first predetermined speed, and the brake is not being applied on the vehicle, in order to indicate low speed of the vehicle;

d) means for flashing said first and second orange lights (LO1, LO2) and third orange light (LO3) of said signalling lights every time that said A pulse is generated while the brake is not being applied on the vehicle, in order to indicate the rate of deceleration of the vehicle without braking;

e) means for turning on first and second green lights (LG1, LG2) of said signalling lights only when the speed of the vehicle is grater than or equal to said second predetermined speed while the brake is not being applied on the vehicle, in order to indicate forward motion of the vehicle with constant speed; and

f) means for flashing third green light (LG3) of said signalling lights if while the speed of the vehicle is greater than said second predetermined speed, said B pulse is generated.

26. The vehicle signalling display device according to claim 23, further comprising:

a) means for generating an amplifying version of said pulse (IC16-d) for generating an (r1) pulse;

b) means for generating an amplifying version of said B pulse (IC16-c) for generating an (G1) pulse;

c) said (r1) pulse initializing a time constant of a first timer means (IC19) for generating an (r2) pulse, and a time constant of second and third timer means (IC20) for generating an (O1) and an (O2) pulse;

wherein said (O1) and (O2) pulses have equal length;

d) said (G1) pulse initializing a time constant of forth and fifth timer means (IC18) in order to generate an (G2) pulse and an (G6) pulse;

e) means for generating an (r3) pulse (IC14, IC15-b) for determining that the magnitude of said reference value is less than 8;

f) means for generating an (O3) pulse (IC14, IC15-a) for determining that the magnitude of said reference value is less than 32;

g) means for generating an (G3) pulse (IC14, IC15-d) for determining that the magnitude of said reference value is less than 96;

h) means for generating an (G5) pulse (IC14, IC15-c) for determining that the magnitude of said reference value is less than 128;

i) first, second, third, forth and fifth relays;

j) said forth relay having a normally closed contact for delivering a supply current (VCC4) from presence or fog light wire to said second and third relays for energizing a number of lights of said signalling lights only when said forth relay is not energized by an (r4) current branched out from brake light wire or from reverse motion light wire;

k) said third relay having a normally closed contact for delivering an energizing current (6) to first, second and third green lights (LG1 ,LG2, LG3) of said signalling lights only when said third relay is not energized by said (O1) or (O3) pulses;

l) said second relay having an output for providing a ground connection (9) for said green lights (LG1, LG2) for turning on said green lights (LG1, LG2) only when said second relay is not energized by said (O2) pulse or by an (Q3) transistor which is driven by said (G5) pulse;

wherein said green lights (LG1, LG2) in lit condition indicate that the speed of the vehicle is between 31 km and 96 km/h;

m) said (G2) pulse energizing said first relay for closing a normally open contact of said first relay for providing a ground connection (3) for said green light (LG3) resulting in flashing on said green light (LG3) during the time that said (G2) pulse lasts, in order to indicate an increase in the speed of the vehicle at least by said predetermined value;

n) wherein an (G4) pulse (IC19) which is amplified and inverted version of said (G3) pulse energizes said first relay for providing said ground connection (3) for said green light (LG3), in order to keep said green light (LG3) lit while said green lights (LG1, LG2) remain lit indicating that the speed of the vehicle is between 95 and 128 km/h;

o) said (G6) pulse disabling said (G4) pulse (IC19) for de-energizing said first relay for disconnecting said ground connection (3) from said green light (LG3) during the time that said (G6) pulse lasts, resulting in flashing off said green light (LG3) for indicating an increase, at least by said predetermined value, in the speed of the vehicle that is between 95 kmh and 128 km/h;

p) said (G5) pulse driving said (Q3) transistor for energizing said second relay and disconnecting said ground connection (9) from said green lights (LG1, LG2), in order to keep only said green light (LG3) lit, indicating that the speed of the vehicle is greater than 127 km/h;

q) said (G6) pulse disabling said (G4) and (G5) pulses for de-energizing said first and second relays during the time that said (G6) pulse lasts, in order to disconnect said ground connection (3) of said first relay from said green light (LG3), and to connect said ground connection (9) of said second relay to said green lights (LG1, LG2) for flashing said green lights (LG1 ,LG2) and said green lights (LG3) on and off interchangeably indicating increase in the speed that is greater than 127 km/h at least by said predetermined value;

r) said (O1) pulse energizing said third relay for disconnecting said energizing current (6) from said green lights (LG1, LG2, LG3) and for closing a normally open contact of said third relay for delivering an energizing current (2) to first and second orange light (LO1, LO2) which are always grounded by a ground connection (1);

wherein said (O1) pulse disables said (G4) pulse (IC19), if said (G3) pulse has already generated said (G4) pulse, for de-energizing said first relay in order to provide a ground connection (5) for third orange light (LO3);

said (O2) pulse energizing said second relay for changing said ground connection (9) of said second relay to a connection to said supply current (VCC4) during the time that said (O2) pulse lasts, in order to disconnect said ground connection (9) from said green lights (LG1, LG2) and to provide an energizing current (9) for said orange light (LO3);

wherein said (O1) and (O2) pulses result in flashing on said orange lights (LO1, LO2, LO3) and flashing off said green lights (LG1, LG2, LG3) during the time that said (O1) and (O2) pulses last;

s) said (O3) pulse driving an (Q4) transistor in order to energize said third relay for disconnecting said energizing current (6) from said green lights (LG1, LG2, LG3) and for connecting said energizing current (2) to said orange lights (LO1, LO2);

resulting in turning on said orange lights (LO1, LO2) and turning off said green lights (LG1, LG2, LG3) while the speed of the vehicle is less than 32 km/h;

wherein an (O4) pulse (IC16-a) which is an inverted version of said O3 pulse prevents said forth timer means from generating said (G2) pulse, in order to prevent said green light (LG3) from flashing when the speed of the vehicle is under 32 km/h and said B pulse is generated;

t) said current (r4) energizing said forth relay for disconnecting said supply current (VCC4) from said second and third relays when the brake is applied on the vehicle or when the vehicle is set for reverse motion, in order to keep said orange and green lights off when the brake is applied or when the vehicle is set for the reverse motion;

u) said (r2) pulse disabling said (G4) pulse, if said (G4) pulse is already generated, for energizing said first relay for providing said ground connection (3) for first and second red lights (LR3, LR4);

wherein said red lights (LR3, LR4) flash on only if the brake is applied and said red lights (LR3, LR4) receive an energizing current (8) from the brake light wire;

v) said normally closed contact of said forth relay creating an (r5) pulse for disabling said (r2) pulse (IC19) when the brake is not applied and the speed of the vehicle is reduced at least by said predetermined value; and

w) said fifth relay having an output for providing a ground connection (7) for third red light (LR5) only when said fifth relay is energized by an (Q5) transistor driven by said (r3) pulse when the speed of the vehicle is less than 8 km/h;

said red light (LR5) receiving said energizing current (8) when the brake is applied on the vehicle, or receiving said energizing current (2) when the brake is not applied on the vehicle;

wherein said red light (LR5) is turned on regardless of braking while the speed of the vehicle is less than 8 km/h which can be 0 km/h.