Controlling system for vehicle with continuously variable transmission
US7788010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2008 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jul 9, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2302/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A controlling system of a vehicle with a continuously variable transmission, which can render a sufficient accelerating feeling in responsive to a driver's requirement. A controller, upon judgment of an acceleration requirement, sets a target drive force higher than the target drive force upon normal calculation upon normal operation of an accelerator pedal, and sets a target rotation speed upon acceleration higher than the target rotation speed upon the normal operation and increasing with an increase of the vehicle speed by a predetermined gradient. The speed change ratio of the continuously variable transmission and the output torque of the engine are controlled such that the set target drive force is achieved, and an input shaft rotation speed of the continuously variable transmission coincides with the target rotation speed upon the set acceleration. Thus upon acceleration, the target drive force and the output rotation speed of the drive source increase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.