Vehicle driving force control apparatus
US7234553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2003 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Jan 21, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/946
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A driving force control apparatus is provided to prevent shocks from being generated during clutch engagement or release. The clutch is maintained in an engaged state and shocks are prevented from accompanying clutch release during creep travel when the target motor torque is equal to or less than a motor torque prescribed value but the average rear wheel speed, which is equivalent to the travel speed of the auto vehicle, is equal to or less than a low-speed prescribed value. In addition, the drive torque on the rear wheels from the electric motor is also brought to the same level as the creep torque on the front wheels from the internal combustion engine, backlash and other types of gaps between the rear axles of the electric motor are closed, and shocks are minimized or prevented during the subsequent transition to a four-wheel drive state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.