Hydraulic system, driving system and electric vehicle
US9021908B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 26, 2012 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Jul 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86019
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic system of an electric vehicle may comprise: an oil container; a first and a second clutch driving circuits connected in parallel; an internal pump driven by a driving system of the electric vehicle; a first check valve connected in series at an outlet side of the internal pump; an external pump driven by an external pump motor; and a second check valve connected in series at an outlet side of the external pump. The first check valve and the internal pump connected in series and the second check valve and the external pump connected in series are connected in parallel between the oil container and the first and second clutch driving circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.