Engine torque control method and device

A technology of engine torque and control method, which is applied in engine control, machine/engine, electrical control, etc., and can solve problems such as poor fuel saving effect

Active Publication Date: 2020-07-07
BEIJING JINGWEI HIRAIN TECH CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method of using the vehicle multi-power switch for vehicle fuel-saving control, on the one hand, needs to rely on the driver's man...

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

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] figure 1 An engine torque control method provided in an embodiment of the present invention may include the following steps:

[0058] S11: Obtain the operating parameters of the vehicle.

[0059] In this embodiment, the running parameters of the vehicle include but not limited to the vehicle speed Ve, acceleration a, angular velocity w, clutch switch clutchSW and neutral switch NgearSW.

[0060] S12: According to the operating parameters of the vehicl...

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Abstract

Embodiments of the invention provide an engine torque control method and device. The engine torque control method comprises the steps that a current driving condition type of a vehicle is first obtained through analysis according to operating parameters of the vehicle, and then a corresponding relationship between the various preset driving condition types and torque control strategies is used forgetting the torque control strategy corresponding to the current driving condition type, the required torque of an engine is calculated, and then the torque of the engine is adjusted. The adaptability of the vehicle under complex and changing driving conditions is improved, the fuel saving effect of the vehicle is improved. further, when the vehicle operating state meets the preset conditions andenters the throttle fixing mode, the required torque of the engine can be kept at a fixed value to ensure that the engine torque remains stable, and the fuel saving effect of the vehicle can be further improved; and through the cooperation of an overtaking mode and a torque limiting mode, the economy and power of the vehicle are comprehensively guaranteed.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, more specifically, to a method and device for controlling engine torque. Background technique [0002] Existing vehicles can realize the coordination and control of the vehicle power system through the VCU (Vehicle Control Unit, vehicle controller), reducing fuel consumption and emissions. The fuel-saving control of existing vehicles, especially commercial vehicles, mainly utilizes on-board multi-power switches. The driver inputs different vehicle load states through the on-board multi-power switch, including heavy load, medium load and light load. Under different vehicle load conditions, different maximum torques are used to limit the output of the engine to achieve fuel-saving control. The method of using vehicle multi-power switches for vehicle fuel-saving control, on the one hand, needs to rely on the driver's manual input; on the other hand, it only performs fuel-saving con...

Claims

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Application Information

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IPC IPC(8): F02D29/02F02D41/02
CPCF02D29/02F02D41/021F02D2250/18F02D2200/101F02D2200/602F02D2250/26
Inventor 李广含王帅宇王晓斌胡兴奇
Owner BEIJING JINGWEI HIRAIN TECH CO INC
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