System to prevent theft of a vehicle and operation thereof by an incapacitated person.

摘要

The invention relates to a system to prevent theft of a motor vehicle and operation of the vehicle by a person under the influence of alcohol or drugs. The system comprises a keyboard with alphameric keys arranged in a non-consecutive order, the keyboard being coupled to an electronic controller. To operate the vehicle, the driver must enter the correct code within a predetermined time period, otherwise the vehicle will be disabled. To enhance the anti-theft functions of the system, it is provided with sensors to detect forced entry coupled to an audible alarm.