Patent · US Active

Motor vehicle drivetrain

US10626968B2 · kind B2 · utility

0Cited by

5References

17Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Julian Heinz · Gerolzhofen, DE
Martin Gentile · Gerolzhofen, DE
Matthias Urban · Gerolzhofen, DE
Markus Steckhan · Mühlheim, DE

Key dates

Filing date	Feb 27, 2017
Grant date	Apr 21, 2020
Priority date	—
Expiry date	Oct 6, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2037/023
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A motor vehicle drivetrain features an input shaft, an output shaft, a continuously variable transmission for coupling the input shaft to the output shaft with a variable transmission ratio between the input shaft and the output shaft, and a bypass transmission with at least one bypass gearing, which has a fixed transmission ratio, in order to couple the input shaft to the output shaft. A value of a transmission ratio of the bypass gearing is less than or equal to half the sum of a value of the maximum forward motion and a value of the minimum forward motion of the variable transmission ratio between the input shaft and the output shaft driven of the continuously variable transmission and/or less than or equal to 1.0. The bypass transmission is configured for driving the motor vehicle with a driving speed of at least 50 km/h or 31 mph.

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