Electric car charging collision control method and system

Abstract

The invention discloses an electric car charging collision control method and system; when the collision strength cannot reach the detonation threshold of airbags but battery security is affected, power can be cut off. The system comprises a plurality of collision sensors, a plurality of pressure sensors, an entire car controller, a power battery managing system, a power-off protector, a power battery, an airbag control unit, a dashboard, an alarming device, an airbag control unit and a security airbag system. The collision sensors and the pressure sensors are connected with the entire car controller, the entire car controller is connected with the power battery managing system, the airbag control unit, the dashboard and the alarming device, the power battery managing system is connected with the power battery through the power-off protector, and the airbag control unit is connected with the security airbag system. The system has the advantages that when the collision strength cannot reach the detonation threshold of the airbags but battery security is affected, power can be cut off; security risks result from failures of high-voltage power supply of a car can be avoided effectively, and security of the car and passengers can be protected effectively.

Description

Technical field [0001] The invention relates to the technical field of automobile safety, in particular to a collision control method and system for an electric automobile during charging. Background technique [0002] In recent years, as a new energy vehicle, electric vehicles are a new direction for the development of the automobile industry. Electric vehicles have developed rapidly. National policies have also encouraged and supported the development of electric vehicles. The number of electric vehicles has increased rapidly. When charging an electric vehicle, if a collision occurs, it needs to detect the collision signal and send an output signal to cut off the power supply to protect the high-voltage battery and the safety of the occupants in the car. However, since the current collision output signal must reach the initiation threshold of the airbag (it can be roughly understood as the vehicle hits an undeformable rigid wall at a speed of 25km / h) before it is sent, so if th...

AI Technical Summary

Problems solved by technology

[0004] The present invention is to overcome the shortage in the prior art that the power will be cut off only when the collision intensity reaches the detonation threshold of the airbag, and provides an electric vehicle charging that will also cut off the power when the collision intensity does not reach the detonation threshold of the airbag and affects the safety of the power battery. Time-to-time collision control method and system thereof

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