Patent · US Expired

Control of the shift points of an automatic transmission for temporary acceleration increase

US4501171A · kind A · utility

14Cited by

9References

2Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Alfred Muller · Krefeld, DE
Manfred Schwab · Gerlingen, DE

Key dates

Filing date	Sep 30, 1982
Grant date	Feb 26, 1985
Priority date	—
Expiry date	Sep 30, 2002

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H61/10
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The kickdown function for modifying the operation of an automatic transmission to make the higher power of a lower gear more extensively available is arranged to take place in response to several operating parameters only one of which is the operation of a kickdown switch and the normal gear pattern is restored likewise in response to any one of several parameters. The function is thus more flexibly adapted to driving conditions and avoids the excessive shifting between gear ratios that may result from more rigidly designed kickdown systems.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.