Control of a powertrain backlash
US10634200B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 3, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0411
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and a system for controlling a backlash of a powertrain included in a vehicle in connection with a gear shifting operation is presented. The method comprises: controlling, in connection with a first gear shifting operation, a clutch included in the powertrain to a slipping position, in which slipping position the clutch transfers a slipping torque that is less than a torque being transferred in a closed position for the clutch; analyzing a change of a rotational speed for an input shaft of a gearbox included in the powertrain; determining a position for the clutch, for which position the change of the rotational speed has a value corresponding to a backlash torque, the backlash torque having a predetermined value for eliminating the backlash; and utilizing the determined clutch position for controlling the clutch in connection with a second subsequent gear shifting operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.