Gear shifting control system of vehicle continuously-variable transmission
US9150213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2014 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Sep 15, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/0611
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A gear shifting control system for a vehicle includes an engine, a continuously-variable transmission, and an electronic control unit. The vehicle includes driving wheels. The engine includes an electronic throttle valve controlling a torque of the engine. The continuously-variable transmission is disposed in a power transmission path between the engine and the driving wheels. The electronic control unit is configured to i) decrease the torque of the engine by decreasing a throttle opening of the electronic throttle valve when the continuously-variable transmission upshifts, and ii) output a gear shifting start command for starting the upshifting of the continuously-variable transmission with a delay relative to a decrease start command for starting the decrease of the throttle opening of the electronic throttle valve when the continuously-variable transmission upshifts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.