Automobile energy source regenerative braking system and the control method thereof

Abstract

The invention discloses a mixing power energy regeneration brake and control method, which includes the determination of feasible conditions of the whole vehicle energy source recovery, determination of the energy source recovery stage, the calculation of the electric brake force when the energy source is recovered, the distribution of the brake force between the mechanical brake and the electric brake, and the system safety protection control of the energy source recovery of the mixing power vehicle. The invention also discloses an energy source regeneration brake system implementing the mixing power energy source regeneration brake control method; the system includes a 144V high-voltage nickel-hydrogen power battery, a 1.3-litre gas engine, a mixing power whole vehicle control unit, a battery control unit, a motor, a brake system controller and a 5-speed AMT gearbox. The secondary control optimization of the energy source recovery for the whole vehicle system with the energy source recovery control scheme ensures the recovery of the whole vehicle energy source to be more reasonable and efficient.

Description

technical field [0001] The invention belongs to the control strategy and algorithm realization of the control strategy field of the energy regenerative braking system of the vehicle whole vehicle system, and can be applied to the control field of electric vehicles, hybrid vehicles and other clean vehicles. The content of the present invention is to carry out the brake torque distribution of the energy recovery control scheme and the realization of the control algorithm on the basis of the vehicle braking system. The application object in the present invention is a vehicle with a hydraulic braking system. When the hydraulic pressure applied in the present invention When the hydraulic pressure of the hydraulic braking system of the vehicle in the braking system increases or decreases, the braking system energy recovery controller mentioned in the present invention controls the distribution of braking torque, and controls the energy recovery actuator in the present invention to pe...

AI Technical Summary

Problems solved by technology

Especially the internal combustion engine system of traditional vehicles is designed to solve the contradictions mainly with the vehicle power, acceleration and climbing ability as the goal, so in a sense, in order to solve these contradictions, the engine cannot be made to work when designing the engine. In addition, all engine speed operating points and all load ranges cannot be fully optimized

All in all, engines operating in conventional vehicles are not optimally designed and in most cases do not work at optimal operating points

Images