Differential rotation control apparatus for vehicle
US7044878B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Mar 2, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2071
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A differential rotation control apparatus for a vehicle having a differential, left and right output shafts of the differential, and left and right axle shafts, comprises variable displacement type left and right hydraulic pumps driveably provided between the left and right output shafts and the left and right axle shafts, a first hydraulic passage interposed between a discharge port of the left hydraulic pump and a suction port of the right hydraulic pump, a second hydraulic passage interposed between a discharge port of the right hydraulic pump and a suction port of the left hydraulic pump, and a controller for calculating a displacement ratio between the left and right hydraulic pumps based on a target turning radius and for controlling a rotation speed ratio between the left and right axle shafts so as to coincide with the calculated displacement ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.