Battery output power control method in electric vehicle safety anti-collision system

Abstract

The invention provides a battery output power control method in an electric vehicle safety anti-collision system, and belongs to the technical field of electric vehicles. The technical problem that the safety coefficient of an existing electric automobile safety anti-collision system is not high enough is solved. According to the battery output power control method in the electric automobile safety anti-collision system, signals of the automobile speed and the distance measuring sensor are directly connected or sent to a BMS (battery management system) through CAN communication, and a PCU (discharge output power control unit) is controlled; 0-100% programmable output of the battery discharge output power is automatically set according to the distance between a target object in front of the running vehicle and the vehicle, the vehicle speed of the vehicle, a brake pedal signal and an accelerator pedal as constraint conditions. According to the method, the discharging output power of the battery is controlled according to the speed of the vehicle in the running process, the distance between the vehicle and the target object and the brake signal state, and the potential safety risk of the vehicle can be controlled from the energy source.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and relates to an electric vehicle safety anti-collision system, in particular to a battery output power control method in the electric vehicle safety anti-collision system. Background technique [0002] As an environmentally friendly new energy vehicle, electric vehicles are becoming more and more popular among the people. Batteries are an important part of electric vehicles, providing energy for the power of electric vehicles. The battery manufacturing technology of electric vehicles is now approaching maturity. As cars become more and more intelligent, the anti-collision system of electric vehicles has gradually become one of its standard configurations. At present, the car anti-collision system is based on tracking and recognition, using millimeter-wave radar, ultrasonic ranging sensor, collision switch or 3D camera to accurately detect the target in front of the car, and transmit t...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned patent documents can control and adjust the output power of the battery, they do not combine the change of the output power of the battery with the safety and anti-collision function of the electric vehicle

Images