Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Patent
1997-03-26
1999-11-09
Cuchlinski, Jr., William A.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
701 58, F16H 5900, G06F 1900
Patent
active
059831537
ABSTRACT:
The invention is directed to a system for determining the changes in gear ratio for an automatic transmission of a vehicle. Such an automatic transmission can be a fully automatic shifting step transmission or a known continuously variable transmission or an automated manual shift transmission. For determining the changes in gear ratio, a detection device for detecting the vehicle road speed and a determination device for determining the gear ratio changes of the automatic transmission are provided at least in dependence upon a first adaptation quantity. The essence of the invention is that the first adaptation quantity is determined from a time-dependent trace of the road speed of the vehicle. With the system, information is provided as to whether the vehicle is, at a particular point in time, in city traffic (low vehicle speed), on a country road (average vehicle speed) or on an expressway (high vehicle speed). This data is obtained in a simple manner via an evaluation of the trace of the road speed.
REFERENCES:
patent: 4829434 (1989-05-01), Karmel et al.
patent: 4899278 (1990-02-01), Yamamoto et al.
patent: 5241476 (1993-08-01), Benford et al.
patent: 5558600 (1996-09-01), Tsukamoto et al.
patent: 5716301 (1998-02-01), Wild et al.
"Die Adaptive Getriebesteuerung fur die Automatikgetriebe der BMW Fahrzeuge mit Zwolfzylindermotor" by A. Welter et al., ATZ Automobiltechnische Zeitschrift 94 (1992) 9, pp. 428 to 436.
"Die Adaptive Getriebesteuerung fur BMW-Automobile" by A. Welter et al., ATZ Automobiltechnische Zeitschrift 95 (1993) 9, pp. 420 to 434.
Cuchlinski Jr. William A.
Ottesen Walter
Pipala Ed
Robert & Bosch GmbH
LandOfFree
System for determining gear ratio changes for an automatic trans does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for determining gear ratio changes for an automatic trans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for determining gear ratio changes for an automatic trans will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1469261