Method and controller for controlling output torque of a propulsion unit
US8447491B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jul 5, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W30/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Method for controlling output torque (Teng) of a propulsion unit in a vehicle powertrain including driven wheels drivingly connected to the propulsion unit via a mechanical transmission with a drive shaft, wherein the method including the steps of registering driver torque demand (Td) for vehicle propulsion, registering propulsion unit rotational speed (ωe), and controlling the output torque (Teng) of the propulsion unit to asymptotically follow the driver torque demand (Td) using a closed-loop linear-quadratic regulator (LQR) based controller (9) having the driver torque demand (Td) and the propulsion unit rotational speed (ωe) as input data, in order to minimize driveline oscillations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.