Power supply system control method, device, power supply system and vehicle

By controlling the motor controller and DCDC converter in the vehicle, the feedback energy is stored in the supercapacitor and power battery, the problem of fuel cell vehicles not being able to make full use of the recovered power during the brake process is solved, and more efficient energy recovery and braking force improvement is achieved.

CN115056658BActive Publication Date: 2025-03-25SANY AUTOMOBILE MFG CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202210771266.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-30
Publication Date
2025-03-25
Estimated Expiration
2042-06-30

AI Technical Summary

Technical Problem

Fuel cell vehicles cannot fully utilize the recovered power during the brake process, resulting in waste of energy and reduced brake force. The existing supercapacitor system can only handle energy buffering in a short time and cannot meet long-term energy feedback and brake requirements.

Method used

By obtaining the vehicle's operating instructions and driving parameter data, determining the driving power and driving state, the control motor controller transmits the feedback power to the supercapacitor, and transmits the power in the supercapacitor to the power battery through the DCDC converter to ensure the energy return and the use of the power energy during the braking process.

Benefits of technology

It effectively increases the amount of electricity recovery of the vehicle, reduces the waste of energy, and increases the brake force of the vehicle, reducing the risk of driver driving.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention relates to the field of new energy technology, and provides a control method, device, power system and vehicle of a power supply system, wherein the control method comprises: obtaining the operation instruction and driving parameter data of the vehicle; determining the driving power and driving state of the vehicle based on the operation instruction and driving parameter data; determining that the driving power of the vehicle is reduced and the vehicle enters the energy feedback state according to the driving power and driving state, controlling the motor controller to transmit the fed-back electric energy to the supercapacitor, and controlling the DCDC converter to transmit the electric energy in the supercapacitor to the power battery; wherein the driving power is partially or entirely provided by a fuel cell. The present invention can effectively increase the amount of electric energy recovered by the vehicle, thereby reducing energy waste and increasing the braking force of the vehicle.
Need to check novelty before this filing date? Find Prior Art