Pre-crash high-voltage power-off protection system for electric vehicle

Abstract

The invention relates to the field of active safety control on electric vehicles, in particular to a pre-crash high-voltage power-off protection system for an electric vehicle. The pre-crash high-voltage power-off protection system comprises a target identification module (1), a vehicle control module (2), a power system module (3), a high-voltage power supply module (4), a high-voltage relay (5) and a high-voltage power supply output module (6), wherein the target identification module (1) is connected to a data input interface of the vehicle control module (2); a control power system interface and a control relay interface of the vehicle control module (2) are respectively connected with control terminals of the power system module (3) and the high-voltage relay (5); and controlled terminals of the high-voltage power supply module (4) and the high-voltage relay (5) are connected with a high-voltage power supply output module (6) in series to form a high-voltage power supply. The pre-crash high-voltage power-off protection system disclosed by the invention can ensure the high-voltage safety of the staffs inside the vehicle when the vehicle crashes, so that the high-voltage safety performance of the electric vehicle is improved.

Description

technical field [0001] The invention relates to the field of active safety control of electric vehicles, in particular to a high-voltage power-off protection system before collisions of electric vehicles. Background technique [0002] With the continuous increase of energy and environmental pressure, my country has also increased the research and development of new energy vehicles in recent years, and has achieved a series of achievements in pure electric vehicles, hybrid vehicles, and extended-range vehicle technologies. Because the driving of electric vehicles uses high-voltage electricity that may endanger life and vehicle safety, the safety of high-voltage electricity for electric vehicles is one of the key issues that must be considered when designing electric vehicles. [0003] The function of the high-voltage electrical system is to connect fuel cells, power electronic components, components, and motors together. Compared with traditional fuel vehicles, the voltage o...

AI Technical Summary

Problems solved by technology

Through reasonable high-voltage protection measures, electric vehicles can generally guarantee the safety of the vehicle and the people inside the vehicle under normal driving conditions. However, once a collision occurs and the vehicle components are damaged, the occurrence of electric leakage, short circuit of various systems, etc. is very likely. Yes, this will greatly endanger the personal safety of the driver and passengers in the car

The existing technology completes the high-voltage disintegration through the controller after the collision of the electric vehicle. However, this technology can only respond passively after the collision. At this time, personal injury and property loss may have been caused.

Images