Transmission with commanded gear shift monitoring logic
US9200704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2014 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/1232
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle includes an engine, input clutch, transmission, and controller. The transmission includes an input member, output member, and bidirectional speed sensor. The speed sensor measures a magnitude and direction of a rotational speed of the output member. Engagement of the input clutch selectively connects the engine to the input member. The controller has a commanded gear shift monitoring (CGSM) module. The CGSM module executes a method via a processor to cause the controller to detect a requested shift of the transmission to a destination gear, and to receive the measured magnitude and direction from the speed sensor. The controller determines a calibrated maximum output speed for the destination gear using the measured magnitude and direction, and executes a control action with respect to the transmission when the measured magnitude exceeds the calibrated maximum output speed. A transmission assembly includes the transmission and controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.