Engine Starting System

• US 20120247413A1
• Filed: 03/30/2012
• Published: 10/04/2012
• Est. Priority Date: 03/30/2011
• Status: Abandoned Application

• Current Assignee: Johnson Electric SA 125 Rue de Progres La Chaux de Fonds Switzerland (Johnson Electric Holdings Limited), Johnson Electronic S.A.
• Original Assignee: Johnson Electric SA 125 Rue de Progres La Chaux de Fonds Switzerland (Johnson Electric Holdings Limited)
• Inventors: CICIRELLO, Antonio, Xiang, Joseph Youqing, Li, Yue, Marchitto, Luciano
• Application Number:
  US13/436,088
• Publication Number:
  US 20120247413A1
• Time in Patent Office: Days
• US Class Current: 123/179.3
• CPC Class Codes: B60K 2025/005 driven by electric motors forming part of the propulsion unit
• CPC Class Codes: B60K 25/00 Auxiliary drives B60K16/00 takes precedence; arrangements of tyre-inflating pumps mounted on vehicles B60C23/10; driving tyre-inflating pumps B60C; driving engine auxiliaries F02B
• CPC Class Codes: F01P 2005/125 Driving auxiliary pumps electrically
• CPC Class Codes: F01P 5/043 Pump reversing arrangements
• CPC Class Codes: F02N 11/003 said electric motor being also used as a drive for auxiliaries, e.g. for driving transmission pumps or fuel pumps during engine stop
• CPC Class Codes: F02N 11/0818 Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
• CPC Class Codes: F02N 11/0859 specially adapted to the type of the starter motor or integrated into it
• CPC Class Codes: F02N 15/022 the starter comprising an intermediate clutch

Abstract

A starting system for an internal combustion engine of a vehicle includes a second motor configured to drive a second load, a first motor configured to selectively drive either the engine or a first load, and a controller configured to control the first and second motors such that when the first motor drives the engine the second motor is stopped, and when the first motor drives the first load the second motor is controlled to drive the second load. Preferably, the second load is a cooling fan of a cooling system for the engine and the first load is a water pump of the cooling system.

Claims

1. A starting system for an internal combustion engine of a vehicle comprising:

a first motor configured to selectively drive either the engine or a first load;

a second motor configured to drive a second load; and

a controller configured to control the first and second motors such that when the first motor drives the engine the second motor is stopped, and when the first motor drives the first load the second motor is controlled to drive the second load.

2. The system of claim 1, wherein the second load is a cooling fan of a cooling system for the engine and the first load is a water pump of the cooling system.

3. The system of claim 2, further comprising a power train control module connected to the controller.

4. The system of claim 2, further comprising a rechargeable battery connected to the controller.

5. The system of claim 2, wherein a second clutch is connected between the first motor and the water pump and a first clutch is connected between the first motor and the engine.

6. The system of claim 5, wherein a gear train is connected between the first motor and the engine.

7. The system of claim 1, wherein the first motor has six phase windings.

8. The system of claim 7, wherein the controller is configured such that when the first motor drives the engine, the controller controls the first motor to operate as a six-phase motor, and when the first motor drives the first load the controller controls the first motor to operate as a three-phase motor.

9. A starting system for an internal combustion engine of a vehicle having a cooling system, the starting system comprising:

a motor connected to the engine and a water pump of the cooling system; and

a controller configured to control the motor to selectively drive either the engine or the water pump.

10. The start system of claim 9, wherein a first clutch is connected between the motor and the engine and a second clutch is connected between the motor and the water pump.

11. The start system of claim 10, wherein a gear train is connected between the engine and the first clutch.

12. The start system of claim 9, further comprising a power train control module connected to the controller, wherein the power train control module shuts down the engine when the engine is not required.

13. The start system of claim 12, further comprising a number of sensors associated with a brake pedal and an accelerator pedal of the vehicle and connected to the power train control module to indicate when the brake pedal and the accelerator pedal are pressed.