Continental EV Safety Sensor to Enter Production in 2012
Specifically, what evSAT (Satellite for Electric Vehicles) does is to immediately shut off the high-voltage battery in the event of a collision. evSAT consists of an independent, triaxial sensor with a CAN (controller area network) interface. During the charge phase, the other vehicle electronics, including the airbag system are not operational.
The accelerator sensor employs an algorithm to detect a frontal, rear or side collision with another vehicle and immediately transmits a signal via the CAN interface to the battery management system which then switches off the battery within half a second.
"The evSAT acceleration sensor is active in charge mode. It detects an accident and passes this information on to the battery management system which then shuts off the high-voltage battery," said Axel Gesell, Senior Manager Platform Development Sensors & Satellites, in the Passive Safety and ADAS business unit of Continental's Chassis & Safety Division.
"The major benefit of our product is that it prevents fire and rescue service personnel sustaining high-voltage injuries when coming into contact with vehicle metal parts or if they have to cut through the vehicle to recover accident victims," Gesell added.