Line pressure control method for dual-clutch transmission
US10830342B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 13, 2019 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Aug 13, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0093
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A line pressure control method for a dual-clutch transmission (DCT), may include a hydraulic-pressure-decreasing operation of interrupting, by a controller, the supply of current to an electric oil pump and estimating a decrease in a line pressure using a line pressure model based on a pressure accumulator mounted in a hydraulic pressure line, a pump-driving operation of, when the estimated line pressure is equal to or less than a predetermined lower-limit value, driving, by the controller, the electric oil pump, and a hydraulic-pressure-increasing operation of determining, by the controller, the line pressure based on the current supplied to the electric oil pump and to determine whether the determined line pressure is equal to or greater than a predetermined upper-limit value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.