公开(公告)号：US20200278024A1

公开(公告)日：2020-09-03

申请号：US16605058

申请日：2018-04-16

Applicant: Eaton Intelligent Power Limited

Inventor： Robert J. Kanda ,  Matthew R. Busdiecker

IPC: F16H61/00

Abstract: A method of operating a motor in a hydraulic control system can comprise determining a keyon event. A motor of a pump unit can then be turned in a first direction a first predetermined amount to pump a hydraulic fluid in a first flow direction. The turning of the motor in the first direction can be limited to prevent hydraulic actuation of a downstream device via the pumped hydraulic fluid. The motor can then be turned in a second direction a second predetermined amount to pump the hydraulic fluid an opposite second flow direction. Like restriction on the downstream device can be implemented. Subsequent to turning the motor in the first and second directions, hydraulic fluid is delivered to an actuator of the downstream device.