发明名称 |
Method for determination of pre-authorization engine operation time for a vehicle theft deterrent system |
摘要 |
Methods and apparatus are provided for determining the duration a motor vehicle engine may operate while operator authorization is verified in response to an ignition request. In one embodiment the method includes the steps of decrementing a pre-authorization timer from a first predetermined time limit and a maximum authorization timer from a second predetermined time limit in response to the ignition request. Also upon receipt of the ignition request an authorization process is initiated. Decrementing of the pre-authorization timer is halted in response to active operation of the starter motor of the motor vehicle, and operation of the motor vehicle is inhibited if either the pre-authorization timer or the maximum authorization timer decrements to zero before completion of the authorization operation. |
申请公布号 |
US7222006(B2) |
申请公布日期 |
2007.05.22 |
申请号 |
US20040755949 |
申请日期 |
2004.01.13 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
PROEFKE DAVID T.;FOREST THOMAS M.;PFEFFER THOMAS W. |
分类号 |
G06F7/00;B60R25/04;G01M17/00 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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