Method for controlling the synchronisation of a pinion on a gearbox shaft
US10221947B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2306/48
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method controls synchronization of a pinion rotating on a primary shaft driven by a traction machine of a vehicle and rotatably connected to a secondary shaft of a parallel shaft gearbox without synchronization mechanisms. The method includes sending to the traction machine, before coupling of the pinion on the primary shaft, a torque command which depends on a torque signal calculated to minimize a difference between a primary speed and a secondary speed multiplied by a reduction ratio between the primary shaft and the secondary shaft. The calculated torque signal is limited in amplitude when the speed difference is greater in absolute value than a desired accuracy on the targeted primary speed upon completion of the synchronization. The calculated torque signal is saturated on a maximum or minimum torque of the traction machine if the calculated torque signal is not between the maximum or minimum torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.