Shifter abnormality diagnosis device and shifter abnormality diagnosis method
US11326689B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Mar 3, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/1264
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shifter abnormality diagnosis device for a shifter used in an automatic transmission having a manual mode, the shifter including a first switch for outputting a signal corresponding to the position of a select lever and a second switch for outputting a signal corresponding to the position of the select lever if the select lever is located in at least one of an upshift range or a downshift range, wherein the abnormality diagnosis device is configured to perform an abnormality diagnosis of the second switch on the basis of an output signal of the second switch and prohibit the abnormality diagnosis of the second switch if it is determined that the select lever is not located in any one of forward ranges including the upshift range and the downshift range on the basis of an output signal of the first switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.