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Engine torque control method and device

A technology of torque control and engine, applied in the field of torque control method and device of engine, to achieve the effect of low comprehensive fuel consumption rate and reduced fuel consumption

Active Publication Date: 2022-04-05
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a torque control method and device for an engine, aiming at solving the problem of how to reduce the fuel consumption of a car during driving

Method used

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  • Engine torque control method and device
  • Engine torque control method and device
  • Engine torque control method and device

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0042] In order to facilitate the introduction of the embodiments of the present application, the basic concepts of throttle opening, throttle MAP, and universal characteristic curve are firstly introduced here.

[0043] The accelerator opening is the opening of the accelerator pedal stepped on by the driver. For the convenience of description, the opening of the accelerator pedal stepped on by the driver is called the accelerator opening.

[0044] Throttle MAP is composed of thrott...

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Abstract

The present application provides an engine torque control method and device, wherein the method includes: obtaining the torque range corresponding to the value group, any value group includes a speed value and an accelerator opening value that satisfy the preset corresponding relationship of the engine , the corresponding relationship is the corresponding relationship between the engine speed, throttle opening and torque, and the torque range corresponding to this value group includes at least one torque value; the combination of torque values ​​that makes the engine's comprehensive fuel consumption rate the lowest is used as the target torque value combination ;Arbitrary torque value combination consists of a torque value selected from the torque range corresponding to each value group; in the case of collecting any value group, the control outputs the target torque, and the target torque is the value in the target torque combination. Group corresponding torque. Through the torque control solution provided by the application, the fuel consumption during the running of the car can be reduced.

Description

technical field [0001] The present application relates to the field of engines, in particular to an engine torque control method and device. Background technique [0002] The engine includes an electronically controlled engine, wherein the electronically controlled engine is composed of an electronic control unit (Electronic Control Unit, ECU), sensors and actuators, and the ECU completes various control functions of the engine. [0003] During the running of the car, the ECU in the electronically controlled engine determines the torque of the engine according to the current speed of the engine and the opening of the accelerator pedal, so that the ECU controls the injector to inject fuel according to the fuel injection quantity corresponding to the torque. Contents of the invention [0004] The present application provides a torque control method and device for an engine, aiming at solving the problem of how to reduce the fuel consumption during the running of the car. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D29/02F02D41/24
CPCF02D29/02F02D41/2422F02D41/2425F02D2200/0404F02D2200/101F02D2200/0614F02D2250/18F02D2200/1002
Inventor 朱江苏吕文芝刘刚尹东东姚泽光李建东
Owner WEICHAI POWER CO LTD
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