Search International and National Patent Collections

1. (WO2011154082) METHOD FOR SETTING SHIFT POINTS IN A TRANSMISSION OR FOR INCREASING THE TORQUE OF AN ELECTRIC DRIVE MACHINE

Pub. No.:    WO/2011/154082    International Application No.:    PCT/EP2011/002426
Publication Date: Dec 15, 2011 International Filing Date: May 17, 2011
IPC: F16H 59/20
Applicants: VOITH PATENT GMBH
DIETZEL, Bernd
Inventors: DIETZEL, Bernd
Title: METHOD FOR SETTING SHIFT POINTS IN A TRANSMISSION OR FOR INCREASING THE TORQUE OF AN ELECTRIC DRIVE MACHINE
Abstract:
The invention relates to a method for setting shift points in an automated shift transmission or an automatic transmission of a motor-driven vehicle, it being possible for the shift points to be displaced in the direction of higher engine rotational speeds by the activation of a kick-down function. The method according to the invention is characterized in that the kick-down function is activated by the driver by the actuation of a switch if one or more of the following conditions is met: - a gear higher than a predetermined gear is presently (being) engaged; - the vehicle has reached a predetermined speed after starting from a standstill or during operation; - the vehicle has covered a predetermined distance after starting from a standstill; - a predetermined time has elapsed since the starting of the vehicle from a standstill; - the present roadway inclination is greater than a predefined roadway inclination; - the present vehicle acceleration is higher than a predetermined acceleration value of the vehicle; - the present torque of the drive wheels is less than a predetermined drive torque of the drive wheels; whereas the kick-down function is not activated, despite the actuation of the switch and/or despite the actuation of the accelerator pedal, regardless of the position of the latter, unless at least one of the stated conditions is met.