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Calibration Algorithm for Electric Vehicle Accelerator Pedal

A technology of accelerator pedal and calibration algorithm, applied in the direction of measuring electricity, measuring electrical variables, testing electrical devices in transportation, etc., can solve the problems of non-adaptive, too many calibration parameters, etc., to reduce the difficulty of operation, rapid and effective , the effect of fast and accurate calculation

Active Publication Date: 2021-07-16
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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  • Calibration Algorithm for Electric Vehicle Accelerator Pedal
  • Calibration Algorithm for Electric Vehicle Accelerator Pedal
  • Calibration Algorithm for Electric Vehicle Accelerator Pedal

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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 vehicle accelerator pedal verification algorithm, which relates to the field of vehicle control safety. The verification algorithm includes the following steps: 1) Acquiring the real-time output voltage signals of the accelerator pedal stepping on road a and road b, and two roads Voltage signal total travel starting point U a0 and U b0 , end point U a1 and U b1 ; 2) Calculate the real-time signal increment ratio of road a and road b; 3) set several sampling points at equal intervals from the voltage starting point to the end point for the two road voltage signal strokes respectively, divide the whole opening of the accelerator pedal into several sections, divide each The incremental ratio of the sampling point forms a signal sampling table; 4) Calculate the real-time opening of the accelerator pedal by the incremental ratio of the real-time voltage signal in the opening range of the signal sampling table; 5) By comparing the difference in the change ratio of the two signals Whether it is less than the set error, judge whether the accelerator pedal is running normally; the beneficial effect of the present invention is that the same verification algorithm can be used for different types of pedals, reducing the parameters that need to be calibrated during the verification process.

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 Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/006
Inventor 吴海平
Owner JIANGSU MINAN AUTOMOTIVE CO LTD
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