Torque splitting system for vehicles
US4738332A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1986 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Oct 31, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19079
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A torque splitting device (12) capable of use in a four wheel drive road vehicle has two coupled epicyclic differential devices providing the two outputs and connected respectively with a torque input shaft (30), which may be driven by a vehicle gearbox and a control shaft (35). The control shaft is driven from the input shaft (35) by way of an infinitely variable ratio drive means comprising a fixed displacement hydrostatic motor (51) coupled with a variable displacement hydrostatic pump (50) which is controlled by signals from a control unit (60). The unit (60) may be responsive to signals representing vehicle control and/or experience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.