Method and arrangement for controlling the drive unit of a vehicle

• US 20030212483A1
• Filed: 05/08/2003
• Published: 11/13/2003
• Est. Priority Date: 05/08/2002
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Folke, Reiner
• Granted Patent: US 6,915,202 B2
• Time in Patent Office: Days
• US Class Current: 701/93
• CPC Class Codes: B60K 31/04 and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
• CPC Class Codes: B60W 2710/0666 Engine torque
• CPC Class Codes: B60W 2720/10 Longitudinal speed
• CPC Class Codes: F02D 11/105 characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
• CPC Class Codes: F02D 2200/0625 Fuel consumption, e.g. measured in fuel liters per 100 kms or miles per gallon
• CPC Class Codes: F02D 2200/501 Vehicle speed
• CPC Class Codes: F02D 2250/18 Control of the engine output torque
• CPC Class Codes: F02D 2250/26 by applying a torque limit

Abstract

A method and an arrangement for controlling a drive unit make a vehicle speed control possible wherein operating conditions not wanted by the driver are avoided. A desired quantity, which is to be outputted by the drive unit, is formed in dependence upon a pregiven vehicle speed. The desired quantity, which is to be outputted, is monitored in dependence upon at least one operating parameter of the vehicle.

Claims

1. A method for controlling the drive unit of a vehicle, the method comprising:

forming a desired quantity to be outputted by said drive unit in dependence upon a pregiven vehicle speed; and

,

monitoring said desired quantity in dependence upon at least one operating parameter of said vehicle.

2. The method of claim 1, wherein said desired quantity is a desired torque.

3. The method of claim 1, comprising the further step of limiting said desired quantity in dependence upon said at least one operating parameter of said vehicle.

4. The method of claim 3, comprising the further step of limiting said desired quantity in such a manner that a pregiven value is not exceeded by said at least one operating parameter.

5. The method of claim 4, wherein said pregiven value for said at least one operating parameter is inputted by means of an input unit.

6. The method of claim 5, wherein said pregiven value for said at least one operating parameter is preset.

7. The method of claim 6, wherein said pregiven value for said at least one operating parameter is derived from the previous driving behavior.

8. The method of claim 3, comprising the further step of limiting said desired quantity when at least one of several operating parameters reaches or exceeds a pregiven value assigned thereto.

9. The method of claim 8, wherein said pregiven value for said at least one operating parameter is inputted by means of an input unit.

10. The method of claim 9, wherein said pregiven value for said at least one operating parameter is preset.

11. The method of claim 10, wherein said pregiven value for said at least one operating parameter is derived from the previous driving behavior.

12. The method of claim 1, wherein said operating parameter is the fuel consumption.

13. The method of claim 1, wherein said operating parameter is an imaginary accelerator pedal position.

14. The method of claim 1, wherein said operating parameter is the engine rpm.

15. The method of claim 1, wherein said operating parameter is a noise level.

16. An arrangement for controlling the drive unit of a vehicle, the arrangement comprising:

means for forming a desired quantity to be outputted by said drive unit in dependence upon a pregiven vehicle speed; and

,

means for monitoring said desired quantity in dependence upon at least one operating parameter of said vehicle.

17. The arrangement of claim 16, wherein said desired quantity is a desired torque.