Hydraulic pressure control device for transmission
US9365205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2011 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Dec 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic pressure control device for a transmission, which operates a hydraulic apparatus by hydraulic pressure generated by an pump driven during operation of a driving force source, for which automatic stop control is performed, accumulates the hydraulic pressure in a pressure accumulator, and supplies the hydraulic pressure accumulated in the pressure accumulator to the hydraulic apparatus when the driving force source is automatically stopped is provided. The automatic stop control includes control to stop the driving force source when the vehicle speed is equal to or higher than a prescribed vehicle speed; and the hydraulic pressure control device performs a control to control an accumulated oil amount in the pressure accumulator and the automatic stop control in a manner to increase the accumulated oil amount of the pressure accumulator when the driving force source is automatically stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.