US 12,466,349 B2
Vehicle and off-road vehicle ignition sense and control circuit for an electronic control unit (ECU)
Rohit Tejsingh Chauhan, Pune (IN); and Steven Lee Hum, Minnetonka, MN (US)
Assigned to Danfoss, A/S, Nordborg (DK)
Appl. No. 18/574,212
Filed by DANFOSS A/S, Nordborg (DK)
PCT Filed Jun. 30, 2022, PCT No. PCT/IB2022/056126
§ 371(c)(1), (2) Date Dec. 26, 2023,
PCT Pub. No. WO2023/275827, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 202111029355 (IN), filed on Jun. 30, 2021.
Prior Publication US 2024/0351539 A1, Oct. 24, 2024
Int. Cl. B60R 16/03 (2006.01); B60W 10/04 (2006.01)
CPC B60R 16/03 (2013.01) [B60W 10/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An ignition sense and control circuit for a motor vehicle, comprising:
a printed circuit board (PCB) supporting a circuit including first and second MOSFETS powered by a battery supply line of the motor vehicle;
the circuit receiving an ignition input signal indicating an ON state of the vehicle;
responsive to the ignition input signal indicating an ON state, the first and second MOSFETS control an ON/OFF state of an electronic control unit (ECU) of the vehicle by enabling voltage from the battery supply line to latch a main internal power supply of the ECU to an ON state with a latch;
wherein the first MOSFET includes a first terminal and a gate terminal, the gate terminal configured to receive an ignition latch signal, and wherein the second MOSFET includes a gate terminal connected to the first terminal of the first MOSFET.