Method and apparatus for an automotive security system which permits engine running prior to code comparison
First Claim
1. A security system for an automotive vehicle having an engine, the security system operatively connected between engine running electrical components which are connected to an electrical power source and a lock switch having at least two operative positions, the system comprising:
- a lock switch operator;
a memory device carried on said lock operator having a first security code; and
a theft control module having a memory storing a second security code operatively connected between the switch and the engine running electrical components for comparing said first and second security codes, said theft control module operative to first permit the engine running electrical components to enable the starting of the engine and after comparing said first and second security codes and finding said first security code not equal to said second security code, disconnecting the engine running electrical components from the electrical power source thereby disabling the engine.
1 Assignment
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Accused Products
Abstract
A security system for an automotive vehicle having an engine is operatively connected between engine running electrical components which are connected to an electrical power source and a lock switch having at least two operative positions. The security system has a lock switch operator having a memory device carried thereon with a first security code stored in the memory device. A theft control module having a memory storing a second security code is operatively connected between the switch and the engine running electrical devices. The theft control module operates to first permit the engine running electrical components to enable the starting of the engine and then to compare the first and second security codes. Upon finding the first security code not equal to the second security code, the engine running electrical components are disconnected from the electrical power source which disables the engine.
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Citations
20 Claims
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1. A security system for an automotive vehicle having an engine, the security system operatively connected between engine running electrical components which are connected to an electrical power source and a lock switch having at least two operative positions, the system comprising:
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a lock switch operator; a memory device carried on said lock operator having a first security code; and a theft control module having a memory storing a second security code operatively connected between the switch and the engine running electrical components for comparing said first and second security codes, said theft control module operative to first permit the engine running electrical components to enable the starting of the engine and after comparing said first and second security codes and finding said first security code not equal to said second security code, disconnecting the engine running electrical components from the electrical power source thereby disabling the engine. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for operating a security system for an automotive vehicle having an engine with engine running electrical components, said security system having a theft control module, a lock switch having a selected position providing power to the engine running electrical components to run the engine, a lock operator with a first security code and a memory in said theft control module having a second security code, said method comprising the steps of:
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placing said lock operator in said switch in said selected position; starting the engine; thereafter, comparing said first security code with said second security code; and if said first security code does not equal said second security code, disconnecting power to said engine running electrical components thereby stopping said engine. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for operating a security system for an automotive vehicle having an engine with engine running electrical components including an electronic engine controller and a lock switch having a selected position providing power to the engine running electrical components to run the engine, said security system having a theft control module operatively connected between the electronic engine controller and the lock switch, the theft control module having a memory storing a first security code and a lock operator having a second code, said method comprising the steps of:
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placing said lock operator in said switch in said selected position; starting the engine; operating said engine controller to interrogate said theft control module for a theft status; sending an engine enable signal or engine disable from said theft control module in response to interrogation by said engine control module; operating said theft control module to interrogate said lock operator for said second security code; receiving said second security code into said theft control module; comparing said first security code with said second security code; operating said theft control module to send an engine disable signal to said electronic engine controller if said first security code is not equal to said second security code; and disabling said engine. - View Dependent Claims (18, 19, 20)
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Specification