24-volt engine start-up system

• US 7,986,053 B2
• Filed: 03/13/2008
• Issued: 07/26/2011
• Est. Priority Date: 03/13/2008
• Status: Expired due to Fees

• Current Assignee: BorgWarner Incorporated
• Original Assignee: Remy Technologies LLC (BorgWarner Incorporated)
• Inventors: Bass, Edward Albert
• Primary Examiner(s): Cuevas; Pedro J
• Application Number:
  US12/076,031
• Publication Number:
  US 20090230683A1
• Time in Patent Office: 1,230 Days
• Field of Search: 290/30.R, 320/123
• US Class Current: 290/30.00R
• CPC Class Codes: F02N 11/0807 Remote means
• CPC Class Codes: F02N 11/0866 comprising several power sources, e.g. battery and capacitor or two batteries
• CPC Class Codes: F02N 2011/0877 said switch being used as a series-parallel switch, e.g. to switch circuit elements from series to parallel connection

Abstract

An engine start-up system is disclosed. The engine start-up system has a 24-volt starter motor configured to crank the engine. The engine start-up system also has an energy source configured to supply electrical power to the starter motor. A 12-volt-operated magnetic switch is integrated with the 24-volt starter motor and is operable to permit the energy source to supply electrical power to the starter motor.

Claims

1. An engine start-up system, comprising:

a 24-volt starter motor configured to crank an engine;

an energy source configured to supply electrical power to the starter motor;

a first 12-volt-operated magnetic switch; and

a second 12-volt-operated magnetic switch;

wherein the first magnetic switch is integrated with the 24-volt starter motor and operable to provide current to the second magnetic switch to permit the energy source to supply electrical power to the starter motor.

2. The system of claim 1, wherein the energy source includes a battery assembly.

3. The system of claim 1, wherein the energy source is further configured to supply electrical power to the first magnetic switch.

4. The system of claim 1, wherein the energy source includes at least two 12-volt energy sources connected in series.

5. The system of claim 4, wherein one of the at least two 12-volt energy sources is configured to supply electrical power to the first magnetic switch.

6. The system of claim 1, wherein the first magnetic switch is configured to be operated by a remote-controllable electric switch.

7. The system of claim 1, wherein the magnetic switch is powered by a battery assembly.

8. A method of starting an engine comprising:

integrating first and second 12-volt-operated magnetic switches with a 24-volt starter motor;

supplying 12 volts to operate the first 12-volt magnetic switch;

operating the first 12-volt magnetic switch to supply 12 volts to operate the second 12-volt magnetic switch; and

operating the second 12-volt magnetic switch to supply 24 volts to operate the 24-volt starter-motor.

9. The method of claim 8, further including supplying the 24 volts by a battery assembly.

10. The method of claim 8, wherein supplying the 24 volts and the 12 volts includes supplying by a 24-volt power supply.

11. The method of claim 8, wherein supplying the 24 volts includes supplying by at least two 12-volt power supplies connected in series.

12. The method of claim 11, wherein supplying the 12 volts to the first 12-volt magnetic switch includes supplying from one of the two at least 12-volt power supplies.

13. The method of claim 8, wherein supplying the 12 volts to the first 12-volt magnetic switch includes supplying from a battery assembly.

14. A machine, comprising:

a combustion engine configured to power operations of the machine;

an interface configured to receive input from a machine operator to start the engine;

a 24-volt starter motor configured to crank the engine;

an energy source configured to supply electrical power to the starter motor; and

a 12-volt-operated magnetic switch integrated with the 24-volt starter motor and operable to permit the energy source to supply electrical power to the starter motor;

wherein the energy source is further configured to supply electrical power to the 12-volt-operated magnetic switch.

15. The machine of claim 14, wherein the energy source includes a battery assembly.

16. The machine of claim 14, wherein the 12-volt-operated magnetic switch is a first 12-volt-operated magnetic switch, the machine further including:

a second 12-volt-operated magnetic switch configured to be operated by the first 12-volt-operated magnetic switch.

17. The machine of claim 14, wherein the energy source includes at least two 12-volt energy sources connected in series.

18. The machine of claim 14, further including a controller configured to receive an interface signal from the interface and generate and send a crank request signal to the 12-volt starter motor, wherein the interface signal is indicative of a request to start an engine.

19. The machine of claim 14, wherein the magnetic switch is powered by a battery assembly.