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:
Feb. 20, 2001
Filed:
Jul. 20, 1998
Karl Barnreiter, Hitzhofen, DE;
Hans-Peter Fleischmann, Stammham, DE;
Johann Markl, Nassenfels, DE;
Hans-Jurgen Rudolph, Neuburg, DE;
Michael Genzel, Rosstal, DE;
Roger Pohlmann, Nuremberg, DE;
Armin Gottschaller, Neumarkt, DE;
Thomas Schmid, Nuremberg, DE;
Werner Flierl, Sulzbach Rosenberg, DE;
Audi AG, Ingolstadt, DE;
Abstract
The invention concerns a control arrangement for an automatic electrohydraulically controlled transmission. In order to reduce expenditure on parts and assembly, the hydraulic control system and electronic control system are mounted directly adjacent each other and plug-in connections are provided between the solenoid valves of the hydraulic control system and the electronic control system. The hydraulic control system (,) substantially comprises two duct panels (,) in which control ducts, piston slides and solenoid valves (not shown) are disposed for controlling the conical plates and couplings of the transmission. The pressurized hydraulic fluid is fed directly into these duct panels from the pump (,). The electronic control system (,) has a single central connection (,) which is secured in the transmission housing cover (,) by an annular seal. Rotational speed sensors for the transmission shafts and temperature and pressure sensors are integrated into the control unit.