Electronic throttle valve control method based on self-adaption sliding mode technology

Abstract

The invention discloses an electronic throttle valve control method based on a self-adaption sliding mode technology. The electronic throttle valve control method comprises the steps that the pedal angle theta<d> and the current throttle valve output angle theta<t> are collected in real time, and the system error e is worked out; the optimal control voltage u of a throttle valve is worked out through a self-adaption robust sliding mode control algorithm, and the duty ratio T set by a motor driver is obtained by conversion according to the formula T=u / 12; and the driver drives the throttle valve according to the duty ratio T obtained from an electronic control unit, and the output throttle valve output angle theta<t1> is obtained. According to the electronic throttle valve control method based on the self-adaption sliding mode technology, the defect that parameters of the electronic throttle valve are uncertain in the prior art is overcome, the problems that the nonlinear characteristic of an electronic throttle valve control system is increased due to existing of gear clearance torque, and the control precision is low are solved, and quick and accurate control over the throttle valve of nonlinear kinetics is achieved.

Description

Electronic Throttle Valve Control Method Based on Adaptive Sliding Mode Technology technical field The invention relates to an electronic throttle control method, in particular to an electronic throttle control method based on adaptive sliding mode technology. Background technique In the context of increasingly fierce competition among global auto companies, how to use scientific methods and means to improve the independent research and development capabilities of my country's automotive electronic control systems to realize my country's transformation from a big consumer country to a manufacturing power is a major opportunity we are currently facing with challenges. As an important means for the continuous development of the automobile industry, the use of automobile electronic control technology can effectively improve the power, comfort and driving safety of automobiles. The traditional throttle valve is mechanical and is rigidly connected, that is, the driver directly...

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is to increase the nonlinear characteristics of the electronic throttle control system in view of the uncertainty of throttle parameters and the existence of gear gap torque in the prior art, and to provide a method that can overcome the throttle valve under different working conditions. Parameter uncertainty and nonlinear characteristics of electronic throttle control system, and electronic throttle control method based on adaptive sliding mode technology with fast response speed and robust tracking performance

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