Torque distribution control apparatus for four-wheel drive vehicle and four-wheel drive vehicle having the same
US8666628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2010 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/368
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque distribution control apparatus for a four-wheel drive vehicle includes a vehicle-speed detector configured to detect a vehicle speed of the vehicle. A wheel-speed detector is configured to detect wheel speeds of main driving wheels and sub-driving wheels of the vehicle. A sub-driving-wheel distribution-torque calculator is configured to calculate a sub-driving-wheel distribution torque in accordance with a rotation speed difference between the main driving wheels and the sub-driving wheels calculated based on an output from the wheel-speed detector. A torque limiter is configured to limit an upper limit of the sub-driving-wheel distribution torque. A controller is configured to control the sub-driving-wheel distribution torque to be transmitted to the right and left sub-driving wheels by right and left torque distribution clutches in accordance with a driving state of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.