Failsafe disable in a vehicle security system
First Claim
1. A vehicle security system comprising:
- a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first relay capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second relay connected to said first relay and said controller, and configured to gate said current to said first relay, said second relay configured to switch from its normally closed position, wherein said current is passed to said first relay, to an open position, wherein said current is not passed to said first relay;
d) said second relay changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing through said first relay to execute its at least one vehicle function;
e) said second relay remaining in its normally closed position when said controller is in said disarmed state thereby passing said current to said first relay to execute its at least one vehicle function; and
f) wherein said normally closed position of said second relay passes said current to said first relay if said second relay fails.
1 Assignment
0 Petitions
Accused Products
Abstract
The disclosed device is an additional, normally-closed relay positioned in line with the ignition switch and the functionality controlled by the OEM, normally-open relay. When the aftermarket system is in the disarmed state, the normally-closed relay is dormant in its closed position, thereby allowing the circuit to complete its intended loop. When the aftermarket security system is enabled, the normally-closed relay will open the current flow and prevent the current from reaching its target, thereby disrupting or disabling the operation of the vehicle function. If the normally-closed relay fails, it fails in its closed position, thereby not affecting the OEM system.
11 Citations
60 Claims
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1. A vehicle security system comprising:
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a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first relay capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second relay connected to said first relay and said controller, and configured to gate said current to said first relay, said second relay configured to switch from its normally closed position, wherein said current is passed to said first relay, to an open position, wherein said current is not passed to said first relay;
d) said second relay changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing through said first relay to execute its at least one vehicle function;
e) said second relay remaining in its normally closed position when said controller is in said disarmed state thereby passing said current to said first relay to execute its at least one vehicle function; and
f) wherein said normally closed position of said second relay passes said current to said first relay if said second relay fails. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle security system comprising:
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a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first relay capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second relay connected to said first relay and said controller, and configured to gate said current from said first relay to at least one vehicle function, said second relay configured to switch from its normally closed position, wherein said current is passed to said at lest one vehicle function, to an open position, wherein said current is not passed to said at lest one vehicle function;
d) said second relay changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing from said first relay to execute said at least one vehicle function;
e) said second relay remaining in its normally closed position when said controller is in said disarmed state thereby passing said current from said first relay to execute said at least one vehicle function; and
f) wherein said normally closed position of said second relay passes said current from said first relay if said second relay fails. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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- 12. The vehicle security system of claim 111 wherein said system further comprises a receiver coupled to said controller, said receiver configured to receive a signal from a transmitter and said controller changing from said disarmed state to said armed state and from said armed state to said disarmed state in response to said signal.
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21. A vehicle security system comprising:
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a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first relay capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second relay connected to said first relay and said controller, and configured to gate said current to said first relay, said second relay configured to switch from its normally closed position, wherein said current is passed to said first relay, to an open position, wherein said current is not passed to said first relay;
d) said second relay changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing to said first relay to execute said at least one vehicle function;
e) said second relay remaining in its normally closed position when said controller is in said disarmed state thereby passing said current to said first relay to execute said at least one vehicle function; and
f) wherein said normally closed position of said second relay passes said current to said first relay if said second relay fails;
g) wherein said first relay, said second relay and said controller are housed in a relay compartment of said vehicle. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A vehicle security system comprising:
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a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first relay capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second relay connected to said first relay and said controller, and configured to gate said current from said first relay to at least one vehicle function, said second relay configured to switch from its normally closed position, wherein said current is passed from said first relay to said at lest one vehicle function, to an open position, wherein said current is not passed from said first relay and to said at lest one vehicle function;
d) said second relay changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing from said first relay to execute said at least one vehicle function;
e) said second relay remaining in its normally closed position when said controller is in said disarmed state thereby passing said current from said first relay to execute said at least one vehicle function, wherein said normally closed position of said second relay passes said current from said first relay if said second relay fails; and
f) wherein said first relay, said second relay and said controller are housed in a relay compartment of said vehicle. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A vehicle security system comprising:
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a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first means for relaying a current, said first means capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second means connected to said first means and said controller, for gating said current from said first means to at least one vehicle function, said second means configured for switching from a normally closed position, wherein said current is passed to said at lest one vehicle function, to an open position, wherein said current is not passed to said at least one vehicle function;
d) said second means changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing from said first means to execute said at least one vehicle function;
e) said second means remaining in its normally closed position when said controller is in said disarmed state thereby passing said current from said first means to execute its at least one vehicle function; and
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f) wherein said normally closed position of said second means passes said current from said first means if said second means fails. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A vehicle security system comprising:
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a) a controller comprising at least an armed state and a disarmed state, wherein said controller changes said states in response to at least one input;
b) a first means for relaying a current, said first means capable of switching from a normally open position to a closed position responsive to at least one of a current and a first control input;
c) a second means connected to said first means and said controller, for gating said current to said first means and to at least one vehicle function coupled to said first means, said second means configured for switching from a normally closed position, wherein said current is passed to said first means, to an open position, wherein said current is not passed to said first means;
d) said second means changing from said normally closed position to said open position responsive to at least one of said current and said second control input if said controller is in said armed state, thereby preventing said current from flowing to said first means to execute said at least one vehicle function;
e) said second means remaining in its normally closed position when said controller is in said disarmed state thereby passing said current to said first means to execute its at least one vehicle function; and
f) wherein said normally closed position of said second means passes said current to said first means if said second means fails. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification