Remote vehicle immobilization
First Claim
1. A vehicle immobilization system coupled to a network system comprising:
- a speed sensor generating a vehicle speed signal;
a telematics control unit receiving and transmitting signals to and from the network;
a speed control module having a maximum operating speed; and
an immobilization controller coupled to the speed sensor, the telematics control unit, and the speed control module, said immobilization controller receiving an immobilization signal from the network;
setting a maximum operating speed for the powertrain controller;
when the vehicle speed signal is below the maximum operating speed, reducing the maximum operating speed within the speed control module to the vehicle speed until the maximum operating speed is a predetermined lower speed limit.
1 Assignment
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Accused Products
Abstract
A vehicle immobilization system (10) is coupled to a network system (20) and includes a vehicle that has a speed sensor (34) generating a vehicle speed signal, a telematics control unit (48) receiving and transmitting signals to and from the network (20), and a speed control module (72). An immobilization controller (30) is coupled to the speed sensor (34), the telematics control unit (48), and the speed control module (72). The immobilization controller (30) receives an immobilization signal from the network (20) and sets a maximum operating speed for the power train controller. When the vehicle speed signal is below the maximum operating speed, the immobilization controller reduces the maximum operating speed within the speed control module until a lower predetermined speed limit is met. The lower speed limit is preferably greater than zero so that some limited mobility of the vehicle may be achieved.
34 Citations
20 Claims
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1. A vehicle immobilization system coupled to a network system comprising:
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a speed sensor generating a vehicle speed signal;
a telematics control unit receiving and transmitting signals to and from the network;
a speed control module having a maximum operating speed; and
an immobilization controller coupled to the speed sensor, the telematics control unit, and the speed control module, said immobilization controller receiving an immobilization signal from the network;
setting a maximum operating speed for the powertrain controller;
when the vehicle speed signal is below the maximum operating speed, reducing the maximum operating speed within the speed control module to the vehicle speed until the maximum operating speed is a predetermined lower speed limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16, 17)
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10. A method of operating a vehicle immobilization system comprises:
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receiving an immobilization signal;
setting a maximum operating speed; and
when the vehicle speed is below the maximum operating speed, reducing the maximum operating speed to the vehicle speed until the maximum operating speed is a predetermined lower speed limit. - View Dependent Claims (11, 12, 13, 14, 15)
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18. A method of operating an immobilization system comprising:
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contacting a law enforcement agency;
providing a law enforcement agent with a password;
the law enforcement agent contacting a service provider;
the law enforcement agent providing an agent identification and the password;
the service provider generating an immobilization signal to the vehicle;
in the vehicle, receiving the immobilization signal;
setting a maximum operating speed as the current vehicle speed when the vehicle is moving; and
when the vehicle speed is below the maximum operating speed, reducing the maximum operating speed to the vehicle speed until the maximum operating speed is a predetermined lower speed limit. - View Dependent Claims (19, 20)
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Specification