Vehicle braking energy recovery system

Abstract

The invention relates to a vehicle braking energy recovery system which comprises a vehicle hydraulic braking system and a vehicle stability control system hydraulic unit, wherein an oil path between each bypass of electromagnetic valve and an oil pump motor is respectively provided with a pedal stroke simulator so as to form a hydraulic control unit; each oil inlet of each hydraulic control unit is respectively connected with each oil outlet of a brake master cylinder through an oil inlet pipeline; each oil inlet pipeline is provided with a master cylinder pressure sensor; each oil outlet of each hydraulic control unit is respectively and correspondingly connected with a brake wheel cylinder through an oil outlet pipeline; an oil outlet pipeline between the oil outlet of each front wheel and a corresponding front wheel brake wheel cylinder is provided with a front wheel cylinder pressure sensor; the master cylinder pressure sensors and the front wheel cylinder pressure sensors collect pressure signals and send the pressure signals to a brake controller; and under a control mode, the brake controller and an entire vehicle controller perform CAN (Controller Area Network) communication; and the entire vehicle controller simultaneously performs CAN communication together with a motor controller so as to control a driving motor to brake. The vehicle braking energy recovery system can be widely applicable to pure electric vehicles or hybrid electric vehicles.

Description

technical field [0001] The invention relates to a vehicle braking energy recovery system, in particular to a vehicle braking energy recovery system suitable for pure electric vehicles or hybrid electric vehicles, which ensures the driver's brake pedal feel and also has the stability control function. Background technique [0002] With the intensification of energy problems and environmental pollution problems, the research and application of electric vehicles is of great significance. One of the key problems faced in the research process of electric vehicles is that the specific energy of power batteries is low, resulting in a greater disadvantage in the driving range of electric vehicles compared with traditional internal combustion engine vehicles. To solve this problem, in addition to seeking a breakthrough in the battery bottleneck technology, how to optimize the design of electric vehicles, establish an efficient and safe energy management system, and rationally use and...

AI Technical Summary

Problems solved by technology

Toyota-Prius brake system and Continental-Hybrid brake system represent the frontier of the development of brake feedback function. However, the above two existing brake systems are all redesigned braking systems to achieve brake energy feedback function , not only the structure is complicated, but also the manufacturing process is high, and the cost is expensive

Images