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Gear shifting control method of automobile electronic gear shifting system

A technology for gear shift control and automotive electronics, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., to avoid damage to the gearbox, avoid wrong gears, and facilitate user operations

Inactive Publication Date: 2021-02-19
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the shift lever cannot be aligned with each gear one by one, it is necessary to identify the target gear according to the driver's action on the shift lever

Method used

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  • Gear shifting control method of automobile electronic gear shifting system
  • Gear shifting control method of automobile electronic gear shifting system

Examples

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] In an embodiment of the present invention, a gear shift control method of an automotive electronic gear shift system comprises the following steps:

[0019] S101. Determine the current gear position by acquiring a gear position signal;

[0020] S102. Obtain a shift lever position signal, and determine a target gear according to the current gear;

[0021] S103. Obtain the handball unlock button status signal, the P button status signal, the brake status signal and the vehicle speed signal, and determine the shift strategy according to the signals:

[0022] When the current gear is D and the target gear is R, if the driver has pressed the handball unlock button and stepped on the brake, and the vehicle speed is less than the first threshold V1, the gear shift controller will send a transmission from D to gear to the gearbox actuator. R's shift control ...

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PUM

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Abstract

The invention discloses a gear shifting control method of an automobile electronic gear shifting system. The method comprises the following steps: determining a current gear by acquiring a gear signal; acquiring a shift lever position signal, and determining a target gear according to the current gear; and acquiring a handball unlocking key state signal, a P key state signal, a brake state signaland a vehicle speed signal, and determining a gear shifting strategy according to the signals. According to the gear shifting control method, the target gear can be determined according to the shift lever position signal and the current gear. Due to the fact that limitation of the handball unlocking key state, the P key state, the brake state and the vehicle speed is added in the gear shifting strategy, mistaken gear engagement caused by misoperation of a driver or mistaken touch of a child can be avoided, gearbox damage caused by high-speed P gear returning can be avoided, brake signals do not need to be judged in the driving process, and user operation is facilitated.

Description

technical field [0001] The invention belongs to the technical field of electronic shifting of automobiles, and in particular relates to a shifting control method of an electronic shifting system of automobiles. Background technique [0002] At present, with the continuous development of automotive electronics and automatic driving technology, the shifters of automatic transmission models of mainstream OEMs at home and abroad have gradually evolved from traditional cable-type mechanical shifting to electronic shifting systems (ETRS for short). [0003] Automatic transmission models generally have gears such as P gear, R gear, N gear, D gear, and S gear. Among them, the mechanical shift is a multi-stable structure, and the gear characters of each gear are aligned with the shift lever one by one. Combined with the gear lights, it is easier for the driver to identify the current gear of the vehicle; but limited by the mechanical structure Insufficient to prevent user misoperati...

Claims

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Application Information

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IPC IPC(8): F16H61/18F16H61/02F16H59/68F16H59/44F16H59/50F16H59/54
CPCF16H59/44F16H59/50F16H59/54F16H59/68F16H61/0204F16H61/0213F16H61/18F16H2061/185
Inventor 何放黄德健杨晓彤
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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