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Safe Processing Method of Electronic Throttle Signal for Automobile

A technology of electronic throttle and safety processing, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of vehicle non-compliance, abnormal acceleration, danger, etc.

Inactive Publication Date: 2011-12-07
澳特卡新能源科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the electronic accelerator pedal signal input in the control logic is incorrect, it may cause abnormal acceleration behavior of the vehicle that does not meet the driver's expectations, and then lead to dangerous situations

Method used

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  • Safe Processing Method of Electronic Throttle Signal for Automobile
  • Safe Processing Method of Electronic Throttle Signal for Automobile
  • Safe Processing Method of Electronic Throttle Signal for Automobile

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Embodiment Construction

[0020] The accompanying drawings disclose, without limitation, the structural schematic diagrams of the preferred embodiments involved in the present invention; the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 and figure 2 As shown, the electronic throttle signal safety processing algorithm described in the present invention is based on two electronic throttle sensor signals in hardware. It is composed of functional modules such as optimization, diagnostic signal interlock mechanism, effective signal channel selection, accelerator protection mechanism under concurrent braking, instantaneous fault protection recovery mechanism, and confirmation fault protection mechanism.

[0022] Voltage signal filtering: After the controller reads the original sensor electronic signal from its hardware port, it first filters the electronic signal. There are two types of filtering: firs...

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Abstract

The invention discloses a safety handling method of electronic accelerator signals for an automobile. The method comprises the following steps: carrying out shunt collecting by two ways on original voltage signals of an electronic accelerator pedal through a voltage division circuit; carrying out normalization treatment on the voltage signals of the two-way electronic accelerator pedal to acquirea reliable percentage value; finally selecting the normalization value of the voltage signals of a one-way electronic accelerator pedal as an output value of the electronic accelerator pedal by combining a diagnosis module based on diagnosis signals of a hardware layer and position signals of a brake pedal which are output by a shunt circuit; and simultaneously controlling the numerical value andchange rate of the output value of the electronic accelerator pedal. Therefore, according to the invention, when the voltage signals of the electronic accelerator pedal is abnormal, reasonable and malfunctions, unexpected automobile acceleration and speed reduction actions are avoided through an appropriate judge strategy and a stoppage coping mechanism, thus other motive system control modules which takes the acceleration pedal signals as inputs are ensured to operate safely and reliably.

Description

technical field [0001] The invention belongs to the field of automobile electronic control. The proposed safety processing method of electronic throttle signal for automobile is a general safe processing method of electronic throttle signal, which is not only suitable for traditional vehicles using engine as power source, but also suitable for hybrid electric vehicles, pure electric vehicles, fuel cell vehicles, etc. new energy vehicles. Background technique [0002] The automobile industry is a pillar industry in my country, and the national automobile sales in 2010 have exceeded 17 million. As a means of transportation, automobiles play an increasingly important role in my country's traffic safety, energy security and social harmony. Modern automobiles have higher and higher requirements for safety, environmental protection, and energy saving. With the advancement of electronic information technology, electronic control technology has been widely used in modern automobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D11/10
Inventor 陈雷高晓杰张臻牛敬彬
Owner 澳特卡新能源科技(上海)有限公司
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