Apparatus, system, and vehicle control apparatus
US11614131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2021 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Jul 8, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/7041
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus to be applied to a vehicle including a transmission configured to execute a gear shifting operation for changing a gear ratio by engaging or disengaging friction engagement elements having friction members pushed by a piston that moves through hydraulic pressure supply to an oil chamber, the apparatus including: a memory storing mapping data for defining mapping, the mapping including a pressure variable and a period variable as input variables, the mapping including a stroke amount as an output variable, the pressure variable indicating a waiting pressure, the period variable indicating a waiting period; and a processor configured to: acquire values of the input variables, and calculate a value of the output variable by inputting, to the mapping, the acquired values of the input variables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.