Vehicle motive force control system
US6027425A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Dec 29, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/105
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for controlling motive force of a vehicle having an engine and a continuously variable automatic transmission connected to the engine to transmit engine torque to a drive shaft of the vehicle. In the system, a desired motive force is calculated or determined from the detected accelerator (pedal) position and vehicle speed, and based on the determined motive force a desired engine speed, more specifically a drive shaft speed of the transmission, is calculated or determined. Then inertia torque acting on the vehicle is calculated or determined based on at least the determined speed and detected speed, and a desired throttle opening is corrected by the determined inertia torque when the vehicle accelerates or decelerates. With the arrangement, the vehicle response delay due to the inertia torque is adjusted and hence, drivability and fuel economy performance are enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.