Electric vehicle starting/parking anti-sliding early warning method and system

Abstract

The invention discloses an electric vehicle starting / parking anti-sliding early warning method. Compared with the prior art, the method comprises the following steps that electronic pedal position information is recognized, motor braking is executed, and if electronic pedal position information exists, a vehicle is safely started; if the electronic pedal position information does not exist, wheelrotation speed information and wheel steering information are obtained, and according to the wheel rotation speed information and the wheel steering information, a motor is controlled by a driving motor controller to output torques reverse in direction so that torque generated by wheels during vehicle sliding can be counteracted; and a driver is warned to control a vehicle electronic pedal throughthe sound warning mode and the light warning mode of a combination instrument. Compared with the prior art, through the electric vehicle starting / parking anti-sliding early warning method, the vehicle sliding phenomenon can be avoided, the vehicle safety is improved, and property losses are decreased. The invention further provides the electric vehicle starting / parking anti-sliding early warningmethod and an electric vehicle starting / parking anti-sliding early warning system. The electric vehicle starting / parking anti-sliding early warning system also has same beneficial effects.

Description

technical field [0001] The present application relates to the technical field of automobile control, and more specifically, relates to an anti-rolling warning method for an electric vehicle, and also relates to a parking anti-rolling warning method for an electric vehicle and an electric vehicle anti-rolling warning system. Background technique [0002] As the country's investment in electric vehicles continues to increase, the technology of electric vehicles has developed rapidly. As the control technology of electric vehicles has gradually matured, the demand for electric vehicles has further expanded, and people's requirements for the safety performance of electric vehicles have become increasingly stringent. Car slipping refers to the phenomenon that the vehicle moves due to improper cooperation between the handbrake and the brake pedal when the vehicle starts, or the vehicle moves forward or backward due to the failure to pull the handbrake or step on the brake pedal whe...

AI Technical Summary

Problems solved by technology

[0004] Since the vehicle controller judges whether there is a car slipping phenomenon by collecting wheel speed sensors, brake pedal position sensors, ABS electronic control units, electronic accelerator pedal position sensors, and gear sensors, if a car slipping phenomenon occurs, it will send an alarm through the light However, when the car rolls, due to the delay in signal transmission, the driver needs to react when the car rolls, and often the vehicle has already started to slide for a certain distance. For example, some novices, The female driver is not familiar with the performance of the vehicle or due to excessive nervousness and panic, cannot make effective operations in time to stop the vehicle from sliding

cause a dangerous accident to the vehicle

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