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Method for bringing torque regulation back from a limited state to an unlimited state

A state control and torque technology, applied in the direction of electrical control, control device, engine control, etc., can solve problems such as controlling the engine

Inactive Publication Date: 2011-10-19
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art also does not point to any way to control the torque of the engine based on the current relationship between "Limited Engine Torque" and "Driver Requested Torque"

Method used

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  • Method for bringing torque regulation back from a limited state to an unlimited state
  • Method for bringing torque regulation back from a limited state to an unlimited state
  • Method for bringing torque regulation back from a limited state to an unlimited state

Examples

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Embodiment Construction

[0024] The present invention thus relates to a method for controlling and regulating the engine of a vehicle, in particular to a method for controlling the torque delivered from the engine in a vehicle with an automatic clutch, wherein the control system of the vehicle automatically limits driving during the clutch engagement process engine torque requested by the driver, and after the clutch engagement process has been completed, regulation is returned to the driver and is affected by the degree of accelerator pedal depression.

[0025] figure 1 The graph of shows how the individual parameters of the engine, clutch and gearbox interact during the regulation of the engine torque according to the invention. The curves represent the value of each parameter as a function of time at each instant, with their values ​​plotted on the vertical axis and time on the horizontal axis. These curves represent the following parameters, namely, the "limited engine torque" M a (Engine Reques...

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Abstract

The invention relates to a method for bringing the regulation of the engine's torque, in a vehicle which has an automatic clutch and in which the vehicle's control system automatically limits the "engine torque requested" (Mb) by the driver during a clutch engagement process, back from a state in which torque limitation is applied to a state in which the torque limitation decreases and totally ceases after the clutch engagement process has been completed. The invention is achieved by gradually bringing control back from torque limitation regulated by the engine control unit (8) to torque directly acted upon by the driver and the accelerator pedal (4) based on the difference between current values for "engine torque requested" (Mb) and "limited engine torque" (Ma) and on current accelerator pedal position (Tp).

Description

technical field [0001] The present invention generally relates to the control of a vehicle engine, in particular the control of engine torque after completion of a clutch engagement process. The invention relates in particular to vehicles having an automatic clutch and in which the driver's torque demand to the control element / engine is automatically restricted during the clutch engagement process and the control of the torque is in turn a function of the degree of accelerator pedal depression. function returns to the driver. Background technique [0002] Modern vehicle engines are usually provided with an engine control unit which regulates the torque delivered by the vehicle engine via the position of the accelerator pedal. For vehicles provided with automatic clutches, it is not uncommon for the torque of the engine to be automatically limited during the clutch engagement process. The accelerator pedal is mainly used as the clutch pedal, because it mainly works during t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W10/06F02D41/10F16D48/08
CPCB60W10/02B60W10/06B60W30/1882B60W30/192B60W2510/0241B60W2540/10B60W2540/106B60W2710/0666F02D41/022F02D41/1497F02D2200/602F02D2250/18F16D2500/50684B60W30/18027F02D41/10F16D48/08
Inventor A·谢尔
Owner SCANIA CV AB
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