Patent · US Expired

Arrangement for the control of the power transmission of a four-wheel drive vehicle

US4860208A · kind A · utility

11Cited by
10References
22Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 29, 1988
Grant dateAug 22, 1989
Priority date
Expiry dateApr 29, 2008

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60W2540/18
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

For improving the load-change behavior of a four-wheel drive motor vehicle when driving through curves, the vehicle is provided with a longitudinal clutch continuously controllable and with a lockable differential continuously controllable in its locking action. The activation of the longitudinal clutch takes place in the first instance in dependence on velocity whereas the activation of the lockable differential is undertaken in the first instance in two stages dependent on power output whereby a velocity-dependent characteristic can additionally be super-imposed on this power output dependent control.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.