System for preventing unauthorized operation of an automotive ve

Details System for preventing unauthorized operation of an automotive ve System for preventing unauthorized operation of an automotive ve

1991-12-11

1993-10-19

Hajec, Donald T.

Registers

Systems controlled by data bearing records

Credit or identification card systems

235492, 34082531, 307 102, B60R 2504, G06K 706

Patent

active

052548422

ABSTRACT:
The described system prevents unauthorized operation of an automotive vehicle under the control of a separable engine control module (10) and signal source or memory device (12). A wire scrambler (22) and interface module (24) are interconnected between the engine control module (10) and memory device (12). A key device (20) having a fixed coded signal source (53) on being received within a lock cylinder (26) energizes a crossbar switch matrix (44) in the interface module (24) which effectively provides a correct wiring relationship between the engine control module (10) and the memory device (12). Connector parts (16, 30) are secured together in a manner that would destroy connector contacts if separated.

REFERENCES:
patent: 4982072 (1991-01-01), Takigami
patent: 5006843 (1991-04-01), Haver
patent: 5019812 (1991-05-01), Gostahagberg et al.
patent: 5072101 (1991-10-01), Ferguson

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