Controller for vehicle transmission
US9568098B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Apr 16, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/6603
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A controller for a vehicle transmission is disclosed. The controller may include an electronic control unit configured to carry out a change shift for changing a path of the transmission of power between a first transmission path and a second transmission path by engaging a predetermined clutch mechanism. The electronic control unit may also be configured to set a change speed ratio region that defines a range of a speed ratio of the first transmission mechanism such that a rotation speed difference between engagement members of the clutch mechanism, which are engaged with each other in carrying out the change shift, is smaller than or equal to a predetermined value. When a speed ratio outside the change speed ratio region is set in the first transmission mechanism, the change shift is not carried out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.