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Electric car accelerator pedal check algorithm

A technology of accelerator pedal and calibration algorithm, which is applied in the direction of measuring electricity, measuring electrical variables, testing electrical devices in transportation, etc., can solve the problems of inability to adapt itself, too many calibration parameters, etc., and achieve reduced operation difficulty and rapid effectiveness , the effect of fast and accurate calculation

Active Publication Date: 2019-01-08
JIANGSU MINAN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There is a problem with the above calibration method: that is, for different types of pedals, different calibration algorithms need to be used, and it needs to be considered that there are many calibration parameters and cannot be self-adapted

Method used

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  • Electric car accelerator pedal check algorithm
  • Electric car accelerator pedal check algorithm
  • Electric car accelerator pedal check algorithm

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Embodiment Construction

[0042] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0043] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0044] The accelerator pedal verification algorithm of the electric vehicle disclosed in the present invention provides a ve...

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Abstract

The invention provides an electric car accelerator pedal check algorithm, and relates to the field of whole car control security. The check algorithm comprises the following steps of 1, acquiring real-time output voltage signals of the a path and b path of an accelerator pedal, and total travel starts Ua0 and Ub0 and ends Ua1 and Ub1 of two voltage signals; 2, computing real-time signal incremental ratios of the a path and b path; 3, separately arranging multiple sampling points at intervals between the voltage start to end of each of the two voltage signal travels; dividing the whole openingof the accelerator pedal into multiple sections, and forming the incremental ratio of each sampling point into a signal sampling table; 4, computing the real-time opening of the accelerator pedal according to the opening sections of the real-time voltage signal incremental ratios in the signal sampling table; and 5, judging whether the accelerator pedal operates normally through judging whether the change ratio difference of the two signals is less than a set error. The algorithm provided by the invention has the beneficial effects that the same check algorithm can be applied to the differenttypes of pedals, and parameters needing to be calibrated during a check process are reduced.

Description

technical field [0001] The invention relates to the field of vehicle control safety, in particular to an electric vehicle acceleration pedal verification algorithm. Background technique [0002] There is a position sensor on the accelerator pedal of the electric vehicle. According to the change of the current pedal position, the resistance value of the output terminal changes accordingly, which causes the voltage value in the output accelerator pedal signal to change. Therefore, the current value can be obtained by testing the output voltage value. pedal position. In the related art, when it is determined that the accelerator pedal signal fails, the vehicle controller directly outputs the pedal opening as 0, and the corresponding motor torque response output is 0. [0003] In the prior art, there are mainly two types of relationship between the accelerator pedal output signal and the opening degree, which are denoted as type A and type B, and the two voltage signals in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/006
Inventor 吴海平
Owner JIANGSU MINAN AUTOMOTIVE CO LTD
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