Pressure sensor rationality diagnostic for a dual clutch transmission
US10316963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/305
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure sensor rationality diagnostic for a dual clutch transmission includes a series of sensor tests. One such test includes charging an oil accumulator to a maximum pressure and storing the maximum pressure value. After performing a discharge pressure event and measuring the pressure value, the difference between the max pressure value and the discharge pressure value is calculated to determine if the difference is less than a predetermined threshold. If the difference is less than the predetermined threshold then at least one remedial action is performed which may include a driver alert or default charging mode. Additionally, similar sensor tests are performed to determine if faults exists and, if true, at least one remedial action is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.