In response to electric vehicle collision accidents, the battery inside the vehicle may cause fire, leakage and other dangerous situations. BOSCH earlier proposed the new CG912 control chip, which will trigger the micro explosives connected to the battery in the event of a vehicle accident.Small-scale "explosion"Make sure the battery is disconnected to avoid battery leakage or further impact during the process of losing control of the vehicle.
The CG912 control chip was originally used to immediately trigger the airbag to be activated when the vehicle collides. This time, BOSCH uses this control chip to detect the vehicle collision and activate the micro-explosives installed on the vehicle's high-voltage battery to completely cut off the circuit connected to the battery.
At the same time, BOSCH emphasized that such an explosion would not cause additional harm or impact, and the most important thing was to cut off the battery power in a faster and more reliable way.
Since the driving voltage of common electric vehicles is mostly around 400V, and some models use a voltage output as high as 800V, if the vehicle is involved in an accident and the battery continues to discharge, there is a possibility of electric shock to the driver and passengers due to leakage. Therefore, BOSCH proposed this design solution in the hope of completely disconnecting the circuit connected to the battery to avoid additional impacts in the event of an electric vehicle accident.
According to BOSCH, the system takes less than one second from recognition to actual operation, completely cutting off the battery power output of an electric vehicle. This not only ensures the safety of the driver and passengers, but also prevents rescue work from being affected by leakage problems.
Similar designs, including those proposed by Swedish vehicle technology supplier Autoliv, will be able to quickly block the battery power supply of electric vehicles in traffic accidents, thereby preventing vehicle leakage from causing electric shock to people, causing additional damage to the battery, or even fire problems.
