Vehicle charge assembly

• US 6,380,701 B1
• Filed: 03/31/2000
• Issued: 04/30/2002
• Est. Priority Date: 03/31/2000
• Status: Expired due to Fees

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Mohan, Robert J., Liu, Ning, Kahlon, Gurinder Singh
• Primary Examiner(s): IP, SHIK LUEN PAUL
• Application Number:
  US09/540,325
• Time in Patent Office: 760 Days
• Field of Search: 318/140-159, 318/139, 318/138, 318/376, 318/801, 307/10.R, 307/66, 320/1, 322/17, 322/14, 322/16, 290/38.R, 290/31, 290/10, 290/40.C, 123/339.19, 123/179.21, 123/179.6, 180/65.2, 180/65.4, 180/197, 310/11
• US Class Current: 318/139
• CPC Class Codes: B60K 6/28 characterised by the electric energy storing means, e.g. batteries or capacitors
• CPC Class Codes: B60K 6/485 Motor-assist type
• CPC Class Codes: B60K 6/54 Transmission for changing ratio
• CPC Class Codes: B60L 2210/12 Buck converters
• CPC Class Codes: B60L 2210/14 Boost converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: F02N 11/04 the motors being associated with current generators
• CPC Class Codes: F02N 11/0866 comprising several power sources, e.g. battery and capacitor or two batteries
• CPC Class Codes: F02N 2011/0885 Capacitors, e.g. for additional power supply
• CPC Class Codes: F02N 2011/0888 DC/DC converters
• CPC Class Codes: F02N 2011/0896 Inverters for electric machines, e.g. starter-generators
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y10S 903/907 : Electricity storage, e.g. battery, capacitor
• CPC Class Codes: Y10S 903/917 : with transmission for changing gear ratio

Abstract

An electrical charge assembly 10 for use within a vehicle 12 having a transmission 20, a starter assembly 16, and an engine 14. The assembly 10 includes a capacitor assembly 34 which selectively provides electrical charge to the starter assembly 16, effective to allow the engine 14 to be activated. The starter 16 may be selectively coupled to the transmission 20, effective to increase the torque produced by the transmission 20 and may selectively provide electrical charge to the capacitor assembly 34.

Claims

1. A charge assembly for use with a vehicle of the type having an engine and a starter, said charge assembly comprising:

a capacitor assembly having an electrical charge which is controllably discharged from said capacitor assembly when said engine is stopped;

a power inverter which is coupled to said capacitor assembly and to said starter; and

a controller which is coupled to said power inverter and which generates a first signal effective to allow said electrical charge to be communicated to said starter through said power inverter and a second signal which is effective to allow electrical charge to be communicated to said capacitor assembly through said power inverter.

2. The charge assembly of claim 1 wherein said capacitor assembly comprises a first and a second capacitor which are coupled in an electrical series configuration.

3. The charge assembly of claim 2 wherein said first and second capacitor each comprises an ultra capacitor.

4. The charge assembly of claim 1 wherein said vehicle includes a clutch assembly and a power transmission assembly, said controller selectively generating a third signal which is effective to couple said clutch assembly to said starter and to said power transmission assembly.

5. The charge assembly of claim 1 wherein said controller is further effective to communicate a fourth signal to said power inverter effective to cause said capacitor assembly to become discharged when said vehicle is in a parked position.

6. A method for increasing the torque produced by a transmission, said method comprising the steps of:

providing a capacitor assembly;

providing a torque producing motor;

activating said torque producing motor by use of said capacitor assembly;

providing a selectively depressible switch which, when selectively depressed, couples said torque producing motor to said transmission, thereby increasing the amount of torque produced by said transmission;

providing a clutch assembly; and

coupling said clutch assembly to said torque producing motor and to said transmission.

7. The method of claim 6 where said torque producing motor comprises a starter.

8. The method of claim 7 further comprising the steps of:

providing a selectively depressible switch; and

coupling said torque producing motor to said transmission upon the selective depression of said switch.

9. The method of claim 8 further comprising the steps of:

providing a battery; and

coupling said battery to said capacitor assembly by use of a direct current to direct current converter.

10. The method of claim 9 wherein said battery is of the twelve-volt type.

11. The method of claim 9 wherein said battery is of the thirty-six volt type.

12. The method of claim 6 further comprising the step of:

generating electrical charge by said torque producing motor; and

communicating said electrical charge to said capacitor assembly.