Transmission control device and transmission control method
US10697536B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 17, 2016 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Mar 9, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/1288
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a transmission control device for controlling a transmission, a controller determines failure of a SOL corresponding to a hydraulic primary-pressure actuator. The controller variably controls line command pressure, and in a case where the failure is determined, continuously changes a speed ratio of a variator by variably controlling the line command pressure. The controller variably controls primary command pressure, and in a case where the failure is determined, fixes the primary command pressure to a primary pressure set value. The controller variably controls secondary command pressure, and in a case where the failure is determined, fixes the secondary command pressure to a secondary pressure set value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.