Vehicle drive force control device
US8897944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Oct 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/946
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided herein is a vehicle drive force control. When a driver requests to start the vehicle with the brake OFF and depresses the accelerator pedal, a target drive torque exceeds a gradient load. To avoid excess current being supplied to the motor, the upper limit of motor speed, which is the input speed of a second clutch, is set to a value less than a slip detectable limit value at which it becomes possible to detect slip rotation, i.e. the difference over the output side rotation speed. When the target drive torque exceeds the gradient load, the lower limit of the input speed of the second clutch (the motor speed) is set to a value equal to or greater than the slip detectable limit value so that the required driving force can be achieved by the gradient load corresponding driving force control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.