Inventor
VORNDRAN RALF
DE14 patents
⚠️ This page may combine multiple inventors who share the name “VORNDRAN RALF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZAHNRADFABRIK FRIEDRICHSHAFEN
7 patentsUS6066069AMay 23, 2000
Control system for an infinitely variable change-speed gear with a torque converter with a lock-up clutch
ZAHNRADFABRIK FRIEDRICHSHAFEN18 citations83
US5961408AOct 5, 1999
Device for controlling a CVT
ZAHNRADFABRIK FRIEDRICHSHAFEN18 citations82
US6216075B1Apr 10, 2001
Process for determining the operating point of a continuously variable transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN7 citations72
US6173227B1Jan 9, 2001
Method of setting the transmission ratio of a continuously variable gear
ZAHNRADFABRIK FRIEDRICHSHAFEN13 citations72
US6997834B2Feb 14, 2006
Device for guiding a moveable conical pulley disc of a CVT variator
ZAHNRADFABRIK FRIEDRICHSHAFEN10 citations69
US5795261AAug 18, 1998
Method of controlling a continuously variable transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations61
US6434464B1Aug 13, 2002
Process for evaluating the driving dynamic request of the driver for the driving strategy of an automatic/automated transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations40
ZF BATAVIA LLC
6 patentsUS6671602B1Dec 30, 2003
Method for manually stipulating the transmission ratio of a continuously variable transmission (CVT)
ZF BATAVIA LLC34 citations89
US6524210B1Feb 25, 2003
Automatic transmission
ZF BATAVIA LLC15 citations83
US6554737B1Apr 29, 2003
Engine speed control via the torque converter lockup clutch of a continuously variable drive
ZF BATAVIA LLC9 citations73
US6527668B2Mar 4, 2003
Hydraulic system
ZF BATAVIA LLC8 citations73
US6542803B1Apr 1, 2003
Method for determining adjusting speeds in a continuously variable transmission
ZF BATAVIA LLC3 citations62
US6424901B1Jul 23, 2002
Method of calculating for the speed control of a CVT
ZF BATAVIA LLC1 citations51