The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2003
Filed:
Jun. 07, 2001
Applicant:
Inventor:
Armin Gierling, Langenargen, DE;
Assignee:
ZF Batavia L.L.C., Batavia, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K 4/112 ;
U.S. Cl.
CPC ...
B60K 4/112 ;
Abstract
The method for monitoring the system pressure of a continuously variable transmission for motor vehicles which, via a permanent mechanical connection, is connected with the prime mover of the motor vehicle consists in that a warning signal is activated for the driver when a drop in system pressure is detected, an entry is made in the transmission fault memory, the clutch on the output side is opened, a signal is sent to the electronic engine control system to prevent uncontrolled acceleration of the engine and the vehicle speed is monitored until it falls below a preset threshold value after which the engine is switched off.