Driving force distribution control apparatus
US9561720B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Mar 19, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2023/0858
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A driving force distribution control apparatus includes: a driving force transmission device including a clutch which can change distribution of a driving force to front wheels and rear wheels of a four-wheel drive vehicle; and a controller which controls an engagement force of the clutch in accordance with a traveling state. The controller includes a different-diameter tire detector which detects an attachment of a different-diameter tire to one of the front wheels and the rear wheels when a rotation speed ratio between the front wheels and the rear wheels continues to be equal to or larger than a reference rotation speed ratio for a predetermined time. The different-diameter tire detector performs detection of the attachment of the different-diameter tire when it is determined that the wheels are unlikely to slip based on an outside condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.