Electronic anti-theft device for vehicles

摘要

The present electronic anti-theft device for vehicles gradually makes a motor vehicle with electronic engine control inoperative if a theft, robbery or attack takes place, if the driver cannot prove his use authorisation by keying in a personal identification number (PIN). The inquiry controlled by the electronic security system in order to prove identification takes place at suitable determined intervals in the travel time or along the route while the vehicle is being used. If the driver is not capable of proving his identity within a response time window, the speed of the vehicle is incremently throttled till it comes to a standstill without endangering traffic by intervening in the electronic engine control and then as soon as it is stationary the vehicle is blocked against being driven away or towed away by intervening in the brake system, and further drive train electronic systems if they are present.