US 12,215,718 B2
Electronic control unit, hydraulic system, and method for controlling a hydraulic system
Alessandro Benevelli, Reggio Emilia (IT); and Nicola Francesco Musciagna, Reggio Emilia (IT)
Assigned to DANA MOTION SYSTEMS ITALIA S.R.L., Reggio Emilia (IT)
Filed by Dana Motion Systems Italia S.R.L., Reggio Emilia (IT)
Filed on Aug. 30, 2022, as Appl. No. 17/823,460.
Claims priority of application No. 10 2021 209 569.0 (DE), filed on Aug. 31, 2021.
Prior Publication US 2023/0060393 A1, Mar. 2, 2023
Int. Cl. F15B 11/16 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); F15B 11/08 (2006.01)
CPC F15B 11/165 (2013.01) [E02F 9/207 (2013.01); E02F 9/2246 (2013.01); F15B 11/08 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/253 (2013.01); F15B 2211/605 (2013.01); F15B 2211/6306 (2013.01); F15B 2211/6309 (2013.01); F15B 2211/6313 (2013.01); F15B 2211/633 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/6656 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electronic control unit for a hydraulic system, the hydraulic system comprising a pump drivingly coupled to a motor, the pump configured to provide a supply pressure in a supply line of the hydraulic system;
wherein the electronic control unit is configured to:
receive a load sensing signal corresponding to a sensed load measure of the hydraulic system, wherein the sensed load measure is a load sensing pressure;
determine, based on the load sensing pressure and a predetermined pump margin, a target torque parameter for the motor, wherein the predetermined pump margin is a pressure differential between the supply pressure and the load sensing pressure; and
adjust the motor based on the target torque parameter;
wherein determining the target torque parameter comprises determining, via a closed loop controller, a closed-loop target torque parameter based on a current speed of the motor; and
wherein adjusting the motor based on the target torque parameter comprises adjusting a speed of the motor based on the closed-loop target torque parameter.