Security system for a motor vehicle
First Claim
1. A security system for a motor vehicle having an engine, comprising:
- at least one status sensor for sensing a status variable of the motor vehicle, said status sensor being selected from the group consisting of a transmission sensor sensing a gearshift setting of a manual or automatic transmission, a clutch sensor sensing a setting of a clutch pedal of the motor vehicle, a brake sensor sensing a setting of a parking brake of the motor vehicle, and a velocity sensor, a security device for disabling or enabling use of the motor vehicle; and
a control unit having an input connected to said sensor and an output connected to said security device, said control unit disabling an activation of said security device in dependence on the status variable, to prevent an incorrect operation of the motor vehicle, said control unit having a logic circuit not only blocking said security device from being activated, in dependence on the status variable, but also activating said security device in dependence on the status variable, independently of a user intervention.
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Accused Products
Abstract
A security system for a motor vehicle is described. The security system has at least one sensor for sensing a status variable of the motor vehicle, a security device for disabling or enabling use of the motor vehicle, and a control unit, connected at the input end to the sensor and at the output end to the security device. The control unit disables activation of the security device as a function of the status variable, in order to prevent incorrect operation. The control unit has a logic circuit that not only blocks the security device preventing activation, as a function of the status variable, but also activates the security device as a function of the status variable, independently of a user intervention.
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Citations
21 Claims
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1. A security system for a motor vehicle having an engine, comprising:
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at least one status sensor for sensing a status variable of the motor vehicle, said status sensor being selected from the group consisting of a transmission sensor sensing a gearshift setting of a manual or automatic transmission, a clutch sensor sensing a setting of a clutch pedal of the motor vehicle, a brake sensor sensing a setting of a parking brake of the motor vehicle, and a velocity sensor, a security device for disabling or enabling use of the motor vehicle; and
a control unit having an input connected to said sensor and an output connected to said security device, said control unit disabling an activation of said security device in dependence on the status variable, to prevent an incorrect operation of the motor vehicle, said control unit having a logic circuit not only blocking said security device from being activated, in dependence on the status variable, but also activating said security device in dependence on the status variable, independently of a user intervention. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A security system for a motor vehicle having an engine, comprising:
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a plurality of sensors for sensing status variables of the motor vehicle;
a security device for disabling or enabling use of the motor vehicle; and
a control unit having a plurality of inputs connected to said sensors and an output connected to said security device, said control unit disabling an activation of said security device in dependence on the status variables, to prevent an incorrect operation of the motor vehicle, said control unit having a logic circuit not only blocking said security device from being activated, in dependence on the status variables, but also activating said security device in dependence on the status variable, independently of a user intervention;
one of said sensors being a transmission sensor connected to one of said inputs of said control unit, said transmission sensor sensing a gearshift setting of a manual or automatic transmission. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification