Patent · US Active

Torque distribution control method for a four-wheel drive motor vehicle and corresponding vehicle

US9156349B2 · kind B2 · utility

1Cited by

17References

9Claims

0Family size

Assignee

Renault S.A.S. · FR

Inventors

Stephane Guegan · Versailles, FR
Richard Pothin · Élancourt, FR
Nicolas Romani · Paris, FR

Key dates

Filing date	Apr 11, 2011
Grant date	Oct 13, 2015
Priority date	—
Expiry date	Sep 19, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60W2520/263
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A motor vehicle with four drive wheels mounted on first and second axles, including: a transfer shaft connected to the first axle and a controlled coupling that can transfer part of the torque from the transfer shaft to the second axle; a mechanism determining respective speeds of the first and second axles, and a torque distribution control system configured to determine a slip value representative of the speed difference between the first and second axles and to control the coupling. The torque distribution control system is further configured to control the coupling such as to suppress any torque transfer via the coupling when the average slip value over a pre-determined period exceeds a threshold.

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