# US 11,440,536 B2 · Wireless device for disabling a differential in an all wheel drive vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,536 B2 - Document ID: US11440536B2 - Status: Granted - Kind: B2 - Application number: 16/944,143 - Filed: 2020-07-30 - Published: 2021-02-04 - Granted: 2022-09-13 - Earliest claimed: 2019-07-30 - Assignees: USP Motorsports Inc - Applicants: USP Motorsports Inc - Inventors: Jonathan Leao; Christopher Green - Web page: https://patentgrep.com/patent/US11440536B2 ## CPC - B60K 23/08: for changing number of driven wheels {, for switching from driving one axle to driving two or more axles (B60K17/3515 takes precedence)} - B60W 30/02: Control of vehicle driving stability - B60K 35/10: Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor - B60K 35/80: Arrangements for controlling instruments - B60R 16/0207: {Wire harnesses} - B60R 16/023: for transmission of signals between vehicle parts or subsystems - B60W 10/06: including control of combustion engines - B60W 10/12: including control of differentials - B60W 30/00: Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units - B60W 50/082: {Selecting or switching between different modes of propelling} - B60K 2023/0883: {manually actuated} - B60K 2360/55: Remote control arrangements - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract For use in all wheel drive vehicles with a rear electronic differential, a device containing a switch for making and breaking an electrical connection in a ground line of a differential harness. When the circuit is broken and the rear electronic differential is not powered, the rear electronic differential does not power the rear axles. A wireless remote control has buttons that when pressed send a wireless signal to a receiver connected to the switch. When the first button in the remote control is pressed, the switch breaks the connection in the ground line. When the second button in the remote control is pressed, the switch completes the connection in the ground line. ## Claims ### Claim 1 A device for disabling a rear electric differential of an all wheel drive vehicle, comprising: a first socket for connecting to a first connector part of a first differential harness segment of a differential harness; a second socket for connecting to a second connector part of a second differential harness segment of the differential harness; a first lead being connected to said first socket, said first lead being configured to form an electrical connection with a ground line of the first differential harness segment; a second lead being connected to said second socket, said second lead being configured to form an electrical connection with a ground line of the second differential harness segment; and a switch creating and disrupting an electrical connection between said first lead and said second lead. ### Claim 2 (depends on 1) The device according to claim 1, further comprising a controller having a button for deactivating the rear electric differential, said controller sending a signal to said switch, said switch disrupting the electrical connection when activated. ### Claim 3 (depends on 2) The device according to claim 2, wherein: a wireless receiver is connected to said switch; said controller includes a wireless transmitter, said wireless transmitter sending the signal to said wireless receiver when said button is pressed. ### Claim 4 (depends on 1) The device according to claim 1, wherein: said first socket is configured to form lockingly engage with a first portion of a D-Plug connector; and said second socket is configured to form lockingly engage with a second portion of the D-Plug connector. ### Claim 5 (depends on 1) The device according to claim 1, further comprising: a third lead being connected to said first socket, said third lead being configured to form an electrical connection with a power line of the first differential harness segment; a fourth lead being connected to said second socket, said fourth lead being configured to form an electrical connection with a power line of the second differential harness segment; and said third lead and said fourth lead being connected to said switch and providing power to operate said switch. ### Claim 6 A device for disabling a rear electric differential in an all wheel drive vehicle, comprising: a rear electric differential for turning rear axles of the vehicle; an engine control module for controlling an engine of the vehicle; a differential harness interconnecting said rear electric differential and said engine control module, said differential harness including a ground wire completing a circuit between said rear electric differential and said engine control module; and a switch for completing and disrupting said circuit between said rear electric differential and said engine control module, said switch interconnecting a first differential harness segment of said differential harness and a second differential harness segment of said differential harness. ### Claim 7 (depends on 6) The device according to claim 6, further comprising a controller having a button for deactivating the rear electric differential, said controller sending a signal to said switch, said switch disrupting the circuit when activated. ### Claim 8 (depends on 7) The device according to claim 7, wherein: a wireless receiver is connected to said switch; said controller includes a wireless transmitter, said wireless transmitter sending the signal to said wireless receiver when said button is pressed. ### Claim 9 In an all wheel drive vehicle without a means for disabling a rear electric differential, a device for disabling the rear electric differential, said device comprising: a rear electric differential for turning rear axles of the vehicle; an engine control module for controlling an engine of the vehicle; a differential harness interconnecting said rear electric differential and said engine control module, said differential harness including a ground wire completing a circuit between said rear electric differential and said engine control module; and a switch for completing and disrupting said circuit between said rear electric differential and said engine control module, said switch interconnecting a first differential harness segment of said differential harness and a second differential harness segment of said differential harness. ### Claim 10 (depends on 9) The device according to claim 9, further comprising a controller having a button for deactivating the rear electric differential, said controller sending a signal to said switch, said switch disrupting the circuit when activated. ### Claim 11 (depends on 10) The device according to claim 10, wherein: a wireless receiver is connected to said switch; said controller includes a wireless transmitter, said wireless transmitter sending the signal to said wireless receiver when said button is pressed.