A shift control method and system of an electronic shifter, and a vehicle

Abstract

The invention provides a gear shift control method and system for an electronic gear shifter and a vehicle. The control method includes the steps that according to a failure state and gear informationof the electronic gear shifter, it is judged whether or not execution of normal gear shifting of the electronic gear shifter is effective; if execution of normal gear shifting is ineffective, it is judged whether execution of a safe gear of the electronic gear shifter is effective or not, and if yes, the vehicle enters a safe mode; the frequency that the vehicle enters the safe mode is judged; when the frequency that the vehicle enters the safe mode is smaller than or equal to Y, it is judged whether or not execution of correct gear shifting of the electronic gear shifter is effective; if yes, the frequency that the electronic gear shifter executes correct gear shifting is judged, when the frequency that the electronic gear shifter executes correct gear shifting is larger than N, the safemode quits, and the vehicle is switched into a normal gear shifting mode. With the gear shift control method and system, system failures can be processed effectively in time.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a shift control method and system for an electronic shifter. Background technique [0002] The connection between the electronic gear lever and the gearbox is not a traditional mechanical method, but a safer and faster electronic control mode, which eliminates the traditional shift mode and uses electronic signals instead. When shifting, the driving The operator pulls the shift lever, so that the shift arm connected with the shift lever moves in the shift operating mechanism. A permanent magnet is installed on the shift arm, and several Hall sensors are installed on the casing of the shift operating mechanism. When the permanent magnets on the shift arm are in different positions, the magnetic induction intensity received by the Hall sensor on the casing is The difference is that the external gearbox is controlled by other devices to achieve different gears of the car. Therefore, com...

AI Technical Summary

Problems solved by technology

[0003] However, when a vehicle equipped with an electronic shifter system encounters a fault, it often only prompts the driver or enters a safe gear, and no more processing is performed, and the current state remains unchanged. In this case , the driver can only power on and off again or wait for the trailer, which leads to poor operability of the system under fault conditions. At the same time, it cannot automatically exit the fault mode when the system occasionally fails, which will not only cause complaints from the driver, but also greatly reduce the driving experience. Safety, at the same time will damage the engine and other parts

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