Controller for vehicle and control method for vehicle
US10359110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Dec 4, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A controller for a vehicle including a continuously variable transmission mechanism, a mechanical stepped transmission mechanism, and a drive wheel is provided. The controller includes an electronic control unit. The electronic control unit is configured to execute gear change control of the mechanical stepped transmission mechanism so as to establish any simulated gear stage of a plurality of simulated gear stages and to change a gear ratio of the continuously variable transmission mechanism stepwise. When determining that the mechanical stepped transmission mechanism has failed, the electronic control unit is configured to fix the mechanical stepped transmission mechanism at a limp-home mode mechanical gear stage, prohibit a stepped gear change of the continuously variable transmission mechanism, and change the gear ratio of the continuously variable transmission mechanism in a stepless manner on the basis of a vehicle state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.