METHOD FOR SHIFTING A MOTOR VEHICLE AUTOMATIC TRANSMISSION WITH A HYDRODYNAMIC TORQUE CONVERTER WHEN THE VEHICLE COMES TO A STOP
Patent №
US 7,959,536
Granted
2011-06-14
Filed 2007
Owner
ZF FRIEDRICHSHAFEN AG
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
11914470
A method of shifting an automatic transmission of a motor vehicle having a hydrodynamic converter (6). The method comprising the steps of detecting a presence of predetermined stopping conditions; determining that a driver of the motor vehicle intends to cause the motor vehicle to change from a driving state to a stopped state, based on the presence of one of the predetermined stopping conditions; and automatically shifting the automatic transmission (8) into a standby mode, before the driving state has concluded. The shifting into the standby mode typically occurs when a rotational speed of the hydrodynamic converter (6) decreases to less than a rotational speed (120) of a motor and the retarder apparatus (10), of the automatic transmission, is disengaged no later than a time by which shifting into the standby mode occurs.
AI classification
Ownership
ZF FRIEDRICHSHAFEN AG
assignment · 201320118
Assignors
EISELE, MARKUS, SORG, FRANZ, NOLZEN, HARRY, BLASER, JURGEN, VOGT, THOMAS
On an employer assignment, the assignors are typically the inventors.