Device and method for controlling distribution of drive force of four-wheel drive car
US7290636B2 · kind B2 · utility
4Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Sep 16, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/35
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A driving force distribution control apparatus and driving force distribution control method for a four-wheel drive vehicle which can quickly increase torque distribution to sub-drive wheels after a transmission has been shifted down. According to the apparatus and method, when it is determined that the transmission has been shifted down, an ECU controls a coupling capable of changing the torque distribution to the front wheels and rear wheels such that the torque distribution to the front wheels and rear wheels approaches a uniform state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.