Method and device for controlling vehicle engine throttle valve plate

Abstract

The invention relates to a method and device for controlling a vehicle engine throttle valve plate. The method comprises the steps that the vehicle current environment temperature value and the engine water temperature value are acquired; when at least one of the current environment temperature value and the engine water temperature value is smaller than a set temperature value, a first control signal for setting the throttle valve plate to a zero opening degree position is sent to a throttle valve plate controller; whether the throttle valve plate reaches the zero opening degree position or not is detected; and when it is detected that the throttle valve plate does not reach the zero opening degree position, deicing operation is executed and comprises the steps of sending a second control signal for setting the throttle valve plate to a first opening degree position to the throttle valve plate controller and then sending the first control signal to the throttle valve plate controller. Through the adoption of the method and device, ice on the edge of the throttle valve plate can be effectively removed, and vehicle starting failures can be avoided.

Description

technical field [0001] The invention relates to the field of vehicle engines, in particular to a method and device for controlling a throttle valve plate of a vehicle engine. Background technique [0002] The electronic throttle is an important control part of the automobile engine, and its main function is to control the amount of fuel (throttle) entering the cylinder for combustion. The larger the electronic throttle opening, the more fuel mixture enters the cylinder, and the higher the engine speed. By changing the throttle opening, the engine speed can be controlled. [0003] An electronic throttle control system usually includes a position sensor, an electric motor, and an electronic control unit. The accelerator pedal position signal is measured by the position sensor, and the electric motor on the electronic throttle body is driven to rotate after being processed by the electronic control unit, thereby driving the electronic throttle valve plate to rotate to a speci...

AI Technical Summary

Problems solved by technology

[0004] When the vehicle is in a cold area, for example, in Northeast China, there is a possibility of icing on the edge of the throttle valve plate in the relatively cold winter weather. When the ice layer is thick, the ice layer hinders the rotation of the throttle valve plate, causing the vehicle to start fail

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