Vehicle control device and vehicle control method
US11022190B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/145
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle control device for a vehicle with a drive source and an automatic transmission including a friction engaging element for transmitting a driving force of the drive source to drive wheels by being engaged by a hydraulic pressure, wherein the vehicle control device is configured to perform an abnormality diagnosis of a solenoid valve for adjusting a hydraulic pressure to be supplied to the friction engaging element on the basis of a slip amount of the friction engaging element, and prohibit the abnormality diagnosis of the solenoid valve if a hydraulic pressure upstream of the solenoid valve is below a predetermined hydraulic pressure at which the friction engaging element is engaged, the hydraulic pressure upstream of the solenoid being a source hydraulic pressure to be adjusted by the solenoid valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.