Patent · US Expired

Method for determining vehicle speed during acceleration of a four-wheel drive vehicle

US4982348A · kind A · utility

5Cited by
4References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 25, 1989
Grant dateJan 1, 1991
Priority date
Expiry dateMay 25, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60T2270/202
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

It is an object of the present invention to provide a method for controlling the vehicle speed during acceleration of a four-wheel drive vehicle, wherein the vehicle speed during acceleration can be determined with precision. According to the above method, even if a wheel is spinning, the vehicle speed can be correctly determined without any influence of the spin, by correcting the vehicle speed during acceleration by comparison of the determined second vehicle speed, based upon the lowest speed of the four wheels, with the first vehicle speed, which is determined based upon the wheel speed.

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