Control apparatus for vehicle
US10323745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2015 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Mar 11, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/425
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
When a power transmission path of a power transmission system is set to a second power transmission path, a continuously variable transmission is controlled at a speed ratio (γ) that provides a higher vehicle speed in the case where an input shaft angular acceleration (dωi/dt) is small than in the case where the input shaft angular acceleration (dωi/dt) is large. Therefore, it is possible to control the speed ratio (γ) of the continuously variable transmission to a speed ratio (γ) that reflects an inertial loss (Tli) of the continuously variable transmission. The inertial loss (Tli) changes with the input shaft angular acceleration (dωi/dt). Thus, in a vehicle in which the continuously variable transmission and a gear mechanism are provided in parallel with each other between an input shaft and an output shaft, it is possible to appropriately reduce a loss of the idling continuously variable transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.