Patent · US Expired

Method of controlling the drive train of a motor vehicle and drive train controller of a motor vehicle

US6287237A · kind A · utility

20Cited by

10References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Friedrich Graf · Eggenfelden, DE
Gregor Probst · Landshut, DE
Florian Gutknecht-Stohr · Regensburg, DE

Key dates

Filing date	Apr 12, 2000
Grant date	Sep 11, 2001
Priority date	—
Expiry date	Apr 12, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/0096
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A brake signal which is triggered by the driver by activating the brake pedal is converted into a required braking torque. A setpoint value for the engine drag torque is determined on the basis of the braking torque. The transmission ratio of an automatic transmission is defined automatically as a function of the setpoint value for the engine drag torque by reference to a down-shift characteristic diagram. The characteristic curves of the diagram are defined with reference to the minimum engine torque.

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