Motor vehicle security system
First Claim
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1. A security system for a motor vehicle having an engine and drive train, comprising:
- sensor means for detecting motion of said motor vehicle to provide a motion signal, said motion signal of said sensor means being arranged to signify distance travelled by said motor vehicle;
sequencing means coupled to said sensor means and responsive to said motion signal for providing a disable signal after production of said motion signal, said sequencing means being operable to provide said disable signal in response to said motion signal signifying motion extending beyond a predetermined distance; and
interrupt means coupled to said sequencing means for receiving said disable signal, said interrupt means being coupled to said engine for disabling said engine in response to said disable signal, whereby said motor vehicle is disabled only after motion of said vehicle is detected.
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Abstract
A motor vehicle having an engine and drive train is protected by a security system including a sensor, a sequencer and an interrupter. The sensor can detect motion of the motor vehicle to provide a motion signal. The sequencer is coupled to the sensor and responds to the motion signal for providing a disable signal after production of the motion signal. The interrupter is coupled to the engine for disabling it in response to the disable signal. Thus the motor vehicle is disabled only after its motion is detected.
38 Citations
42 Claims
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1. A security system for a motor vehicle having an engine and drive train, comprising:
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sensor means for detecting motion of said motor vehicle to provide a motion signal, said motion signal of said sensor means being arranged to signify distance travelled by said motor vehicle; sequencing means coupled to said sensor means and responsive to said motion signal for providing a disable signal after production of said motion signal, said sequencing means being operable to provide said disable signal in response to said motion signal signifying motion extending beyond a predetermined distance; and interrupt means coupled to said sequencing means for receiving said disable signal, said interrupt means being coupled to said engine for disabling said engine in response to said disable signal, whereby said motor vehicle is disabled only after motion of said vehicle is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 42)
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26. A method for securing a motor vehicle having an engine and drive train, comprising the steps of:
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detecting motion of said motor vehicle and measuring the distance travelled by said motor vehicle; and disabling said engine provided said motor vehicle departs in an interval of motion exceeding a predetermined magnitude after said motor vehicle moves more than a predetermined distance, whereby said motor vehicle is disabled only after its motion is detected. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A security system for disabling a motor vehicle having an engine and drive train after said motor vehicle has left a vicinity, comprising:
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sensor means for detecting departure of said motor vehicle from said vicinity and providing a variable motion signal signifying an interval of motion of said motor vehicle; sequencing means coupled to said sensor means for providing a disable signal in response to production of said variable motion signal at a magnitude signifying departure of said motor vehicle in an interval of motion exceeding a predetermined amount, said sequencing means being operable to provide said disable signal after the expiration of a predetermined time delay interval, said delay interval beginning in response to departure of said motor vehicle as indicated by said motion signal; and
interrupt means coupled to said sequencing means for receiving said disable signal, said interrupt means being coupled to said engine for disabling said engine in response to said disable signal, whereby said motor vehicle is disabled only after its motion is detected. - View Dependent Claims (41)
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Specification