Shifting control method for gear shifter of electric vehicle

Abstract

The invention discloses a gear shift control method for a gear shifter of an electric vehicle, which comprises the following steps: Step 1: the gear shift controller is connected to the whole vehicle controller through hard wires, and the gear shift controller connects the gear shift controller to the The action of the gear lever is converted into a voltage signal and output to the vehicle controller; step 2: the vehicle controller judges whether the vehicle is powered on, if not, perform step 3, and if so, perform step 4; step 3: the vehicle controller does not respond Shift the gear and output the P gear, return to step 1; Step 4: The vehicle controller judges the gear shift action, judges the gear position of the vehicle based on the vehicle status information, and outputs the current gear signal to realize gear switching or gear shifting maintain. The present invention uses the vehicle controller to judge and output the current gear position of the vehicle through the voltage signal corresponding to the action of the shift lever of the gear shift controller in combination with the status information of the whole vehicle, thereby avoiding the conflict between the gear position of the gear shift controller and the whole vehicle. The gears judged by the car controller are inconsistent, which will affect the gear control and driving experience.

Description

Technical field [0001] The present invention relates to a control method for an electric vehicle, and particularly to a shift control method for an electric vehicle for pregnant gear the shifter. Background technique [0002] Each member an electric vehicle, the driver shifter communication link with the vehicle power system. Vehicle controller by signal analysis in conjunction with the shifter and the state of the vehicle in real time, calculates the current gear is located, in order to resolve the driving direction of the driver's intention, and the position signal is also closely related to the torque output of the energy recovery module. [0003] Traditional prior art or new vehicles often shifter knob or lever, which position signal analysis method is: when the knob or lever gear shift selector in a position different from the output to the vehicle controller different combinations of switching signals hardwired. Vehicle controller via hardwired signal current collected dire...

AI Technical Summary

Problems solved by technology

[0006] 1. The gear shifter needs to be equipped with a single-chip microcomputer chip, and needs to support the bus function, so the cost is relatively high

[0007] 2. The shifting controller sends out the shifting gear through the bus, and because the vehicle controller needs to judge the brake switch, vehicle speed and other signals when outputting the gear; when the shifting conditions are not met, the shifting control will appear If the gear position of the controller is inconsistent with the gear position judged by the vehicle controller, it is easy to cause misunderstanding to the driver and affect the driving experience

Due to the physical gears of the knob or gear shifter, there is also the problem that the gears of the gear shifter are inconsistent with the gears of the vehicle controller

Images