Method of diagnosing a park/neutral switch for vehicular automatic transmission
US5442550A · kind A · utility
3Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1994 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | May 4, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/1208
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The status of a Park/Neutral (P/N) switch for an automatic transmission in an automotive vehicle is diagnosed by a method which includes the steps of determining whether an engine of the automotive vehicle is cranking, diagnosing the P/N switch for a P/N state of the automatic transmission when the engine is cranking, and diagnosing the P/N switch for a Drive state of the automatic transmission when the engine is not cranking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.