# US 2013/0158822 A1 · Self-Arming Immobilizer System, Apparatus and Method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0158822 A1 - Document ID: US20130158822A1 - Status: Published application - Kind: A1 - Application number: 13/720,611 - Filed: 2012-12-19 - Published: 2013-06-20 - Earliest claimed: 2011-12-19 - Inventors: Hugh Morris - Web page: https://patentgrep.com/patent/US20130158822A1 ## CPC - G06F 17/00: Digital computing or data processing equipment or methods, specially adapted for specific functions (information retrieval, database structures or file system structures therefor G06F16/00) - B60R 25/04: operating on the propulsion system, e.g. engine or drive motor - B60R 2025/0415: {with safe immobilisation} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract There is disclosed a self-arming immobilizer system for immobilizing a vehicle. In an embodiment, the system comprises a signal input for receiving a signal indicating the absence of an authorized operator in a position of control in the vehicle; and an immobilizer unit adapted to receive the signal input, and in response to the signal indicating the absence of an authorized operator in a position of control in the vehicle, switch one or more relays to disable one or more circuits in the vehicle to immobilize and secure the vehicle. In an embodiment, the immobilizer unit is adapted to disable a gear shift link solenoid to disable the gear shift. In another embodiment, the immobilizer unit is adapted to disable a gun rack solenoid to lock the gun rack. In another embodiment, the vehicle is immobilized at idle, and the system allows the vehicle to keep idling until deactivated by an authorized operator. ## Claims ### Claim 1 A self-arming immobilizer system for immobilizing a vehicle, comprising: a signal input for receiving a signal indicating the absence of an authorized operator in a position of control in the vehicle; and an immobilizer unit adapted to receive the signal input, and in response to the signal indicating the absence of an authorized operator in a position of control in the vehicle, switch one or more relays to disable one or more circuits in the vehicle to immobilize and secure the vehicle. ### Claim 2 (depends on 1) The self-arming immobilizer system of claim 1, wherein the signal indicating the absence of an authorized operator is provided by a door open trigger. ### Claim 3 (depends on 1) The self-arming immobilizer system of claim 1, wherein the signal indicating the absence of an authorized operator is provided by the absence of a key ignition fob. ### Claim 4 (depends on 1) The self-arming immobilizer system of claim 1, wherein the signal indicating the absence of an authorized operator is provided via a manual arming switch located on a dash of the vehicle. ### Claim 5 (depends on 1) The self-arming immobilizer system of claim 1, wherein the signal indicating the absence of an authorized operator is provided by an active arming signal generated from a first fob. ### Claim 6 (depends on 1) The self-arming immobilizer system of claim 1, wherein a signal required to re-enable one or more circuits in the vehicle is provided by a second fob. ### Claim 7 (depends on 1) The self-arming immobilizer system of claim 1, wherein the signal indicating the absence of an authorized operator can only be generated when the vehicle is in a parked mode. ### Claim 8 (depends on 1) The self-arming immobilizer system of claim 1, wherein a signal required to re-enable one or more circuits in the vehicle using a first fob is not operational in the absence of a second fob. ### Claim 9 (depends on 1) The system of claim 1, wherein the immobilizer unit is adapted to disable a gear shift link solenoid to disable the gear shift. ### Claim 10 (depends on 9) The system of claim 9, wherein the immobilizer unit is adapted to immobilize the vehicle at idle. ### Claim 11 A method of immobilizing a vehicle, comprising: receiving a signal at a signal input for indicating the absence of an authorized operator in a position of control in the vehicle; and in response to the signal indicating the absence of an authorized operator in a position of control in the vehicle, switch one or more relays to disable one or more circuits in the vehicle to immobilize and secure the vehicle utilizing an immobilizer unit adapted to disable the one or mere circuits. ### Claim 12 (depends on 11) The method of claim 11, further comprising providing the signal indicating the absence of an authorized operator utilizing a door open trigger. ### Claim 13 (depends on 11) The method of claim 11, further comprising providing the signal indicating the absence of an authorized operator utilizing the absence of a key ignition fob. ### Claim 14 (depends on 11) The method of claim 11, further comprising providing the signal indicating the absence of an authorized operator utilizing a manual arming switch located on a dash of the vehicle. ### Claim 15 (depends on 11) The method of claim 11, further comprising providing the signal indicating the absence of an authorized operator utilizing an active arming signal generated from a first fob. ### Claim 16 (depends on 11) The method of claim 11, further comprising providing a signal required to re-enable one or more circuits in the vehicle utilizing a second fob. ### Claim 17 (depends on 11) The method of claim 11, further comprising generating the signal indicating the absence of an authorized operator can only when the vehicle is in a parked mode. ### Claim 18 (depends on 11) The method of claim 11, further comprising providing a signal required to re-enable one or more circuits in the vehicle using a first fob is not operational in the absence of a second fob. ### Claim 19 (depends on 11) The method of claim 11, further comprising disabling a gear shift link solenoid to disable the gear shift. ### Claim 20 (depends on 19) The method of claim 19, further comprising immobilizing the vehicle at idle and allowing the vehicle to continue to idle after immobilization.