Transmission system implementing automated directional shift braking
US9505410B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/412
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transmission system is disclosed for use with a machine. The transmission system may have a first clutch to transfer power in a first direction, a second clutch to transfer power in a second direction, a brake, a sensor to generate a first signal indicative of speed, and an input device to generate a second signal indicative of a desire to shift directions. The transmission system may also have a controller to cause disengagement of the first directional clutch in response to the second signal, and to cause the brake to apply retarding torque. The controller may also be configured to determine an error value based on the second signal and a target transmission system speed, to selectively increase retarding torque when the error value increases, and to selectively transfer retarding torque to the second directional clutch when a value of the second signal is less than a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.