Patent · US Active

Method and module for controlling a vehicle's speed

US8972138B2 · kind B2 · utility

3Cited by

0References

26Claims

0Family size

Assignee

Scania CV AB · SE

Inventors

Oskar Johansson · Stockholm, SE
Maria Södergren · Stuvsta-Snättringe, SE
Fredrik Roos · Stuvsta-Snättringe, SE

Key dates

Filing date	Jun 21, 2011
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Dec 8, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/84
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for controlling a vehicle's speed by adopting a desired speed vset for the vehicle; determining a horizon for the intended itinerary made up of route segments, effecting the following during each of a number of simulation cycles (s) each comprising a number N of simulation steps conducted at a predetermined frequency f: first predicting the vehicle's speed vpredcc along the horizon with conventional cruise control when vset is presented as reference speed, comparing the predicted vehicle speed vpredcc in a range vmin to vmax, making a second prediction of the vehicle's speed vpredTnew along the horizon based on the vehicle's engine torque T; determining a reference value for how the vehicle's speed is to be influenced on the basis of at least one of the comparisons and the predicted vehicle speed vpredTnew; controlling the vehicle by the reference value. A module for the foregoing controls a vehicle's speed.

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