Driving force control device for four-wheel-drive vehicle
US8996267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2720/403
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A driving force control device for a four-wheel-drive vehicle performs, by controlling the driving force that is allocated to the rear wheels by a front and rear torque allocation clutch that is arranged between a propeller shaft and a rear diff, the control of setting front wheels as primary drive wheels and rear wheels as auxiliary drive wheels. A control is performed to disable the allocation of driving force to the rear wheels by disengaging the front and rear torque allocation clutch, when the state that the difference in wheel speed between the left and right rear wheels is equal to or more than 80 km continues for 0.1 sec or longer in the state that the vehicle body speed is equal to or less than 120 km.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.