Patent · US Active

Control method and control device in a motor vehicle for shifting an automatic transmission

US10731752B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Andreas Geser · Karlsfeld, DE
Stefan Prasser · Munich, DE

Key dates

Filing date	Feb 12, 2018
Grant date	Aug 4, 2020
Priority date	—
Expiry date	Apr 20, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/022
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a control method and a control device for shifting an automatic and, in particular, non-powershift-capable transmission having at least two gears, data of a driving-speed-related data source are received by at least one electronic control unit for a defined forecast range. The data are such that the control unit can determine therefrom a region at least lying in the forecast range and having a limit speed below the maximum speed of the lower gear. If such a region was actually detected in the forecast range, either the lower gear is maintained or shifting is performed from the higher gear to the lower gear. Shifting back to the lower gear is preferably performed only if a driver power request value lies below a defined threshold and the driving speed lies below the maximum speed of the lower gear.

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