公开(公告)号：US12172711B2

公开(公告)日：2024-12-24

申请号：US17376982

申请日：2021-07-15

Applicant: Caterpillar Inc.

Inventor： Edward William Mate ,  William N. O'Neill ,  Jeremy T Peterson ,  Richard A Carpenter

IPC: B62D5/09 ,  B62D5/06 ,  G01M99/00

Abstract: A secondary steering pump system may include a secondary steering pump, a bypass valve having a first bypass position configured for placing the secondary steering pump in fluid communication with a hydraulic tank and a second use/testing position configured for placing the secondary steering pump in fluid communication with a steering control circuit. The system may also include a solenoid valve configured for actuation by a solenoid and for selectively actuating the bypass valve from the first position to the second position. The system may also include a pressure sensor configured for sensing pressure in the system.