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:
Apr. 09, 2002
Filed:
Jun. 01, 2000
Applicant:
Inventors:
Kai-Uwe Herbster, Friedrichshafen, DE;
Franz-Josef Schuler, Kressbronn, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/700 ; B60K 1/700 ; B60K 4/126 ; B60K 4/112 ;
U.S. Cl.
CPC ...
G06F 1/700 ; B60K 1/700 ; B60K 4/126 ; B60K 4/112 ;
Abstract
For an automatic transmission ( ) a downshift function is proposed in which, with the actuation of a brake pedal, a new downshift point (RA(NEU)) is calculated when the throttle valve is closed by adding to a basic downshift point (RS(ORD)) a characteristic variable (K ) wherein the characteristic variable (K ) is determined from a driving activity (FA) and a calculated brake pressure via a characteristic field.