Electronic throttle valve opening degree estimation method and system based on Kalman-like filtering

An electronic throttle and estimation algorithm technology, which is applied in the direction of engine testing, machine/structural component testing, instruments, etc., can solve the problems of inaccurate estimation of electronic throttle valve slices, etc., and achieve reduced interference, strong robustness, Estimate the effect of high precision
CN110987449AActive Publication Date: 2020-04-10SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2020-04-10

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Abstract

The invention provides an electronic throttle valve opening degree estimation method and an electronic throttle valve opening degree estimation system based on Kalman-like filtering. The electronic throttle valve opening degree estimation method comprises the steps of: acquiring electronic throttle valve opening degree data acquired by means of an electronic throttle valve position sensor; and processing the opening degree data, measured by means of the position sensor, of an electronic throttle valve by adopting a Kalman-like estimation algorithm to obtain a filtered opening degree of the electronic throttle valve, and feeding the filtered opening degree value of the electronic throttle valve back to a vehicle-mounted controller for further controlling the opening degree of the electronicthrottle valve according to the filtered opening degree value. By adopting the Kalman-like estimation algorithm for filtering an output signal of the electronic throttle valve position sensor, interference of non-Gaussian white noise on a measurement result is reduced, and an estimation strategy is high in estimation precision and high in robustness.
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Description

technical field

[0001] The present disclosure relates to the technical field of electronic throttle opening estimation, in particular to a Kalman-like filter-based electronic throttle opening estimation method and system. Background technique

[0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

[0003] The electronic throttle is an important control part of the automobile engine, which is composed of a DC motor, a position sensor, a return spring, etc. The electronic throttle is a single-input and single-output system. When the voltage is input, the electronic throttle executes the instructions of the electronic control unit (ECU), and the throttle valve plate will produce a rotational movement. The ECU controls the engine by adjusting the opening of the electronic throttle. air intake.

[0004] The electronic throttle plays a fundamental role in the adjustment of engi...

Claims

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