Flow controlling apparatus for power steering
US7124855B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Jun 22, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/062
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A flow controlling apparatus for a power steering system includes a variable throttle mechanism installed in the pump to change the flow rate of discharged oil from the pump to a hydraulic device; a linear solenoid mechanism controlling the variable throttle mechanism by a predetermined energizing current; a spool feeding back the excess discharged oil to a bypass passage of the pump in accordance with a differential pressure between the upstream and downstream sides of the variable throttle mechanism when the excess fluid exceeds a predetermined value; and an ECU controlling the energized current to change the transition process in accordance with a steering angular velocity of the steering wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.