US 2014/0371022 A1 · AUTOMATED MANUAL TRANSMISSION FOR VEHICLE

Abstract

An automated manual transmission for a vehicle may include an input shaft configured to receive rotating force from a power source, an output shaft disposed parallel to the input shaft so that power is output from the output shaft, and a plurality of shift gear trains each comprising external gears respectively provided on the input shaft and the output shaft in such a way that the external gears circumscribe each other, the external gears forming a pair that embodies one of a series of shift ratios. Among the external gears that form a shift gear train in the plurality of the shift gear trains that embodies at least two adjacent shift ratios, either of two external gears that forms each of the shift gear trains may be connected to the input shaft or the output shaft by a planetary gear device.

Claims10

Dependent claims

An automated manual transmission for a vehicle, comprising:

an input shaft configured to receive rotating force from a power source;
an output shaft disposed parallel to the input shaft so that power is output from the output shaft;
and
a plurality of shift gear trains each comprising external gears respectively provided on the input shaft and the output shaft in such a way that the external gears circumscribe each other, the external gears forming a pair that embodies one of a series of shift ratios,
wherein among the external gears that form a shift gear train in the plurality of the shift gear trains that embodies at least two adjacent shift ratios, either of two external gears that forms each of the shift gear trains is connected to the input shaft or the output shaft by a planetary gear device.

2 more elements

An automated manual transmission for a vehicle having a series of shift ratios of at least first through fourth gear stages that are gradually reduced in reduction ratios, the automated manual transmission comprising:

a first planetary gear device provided with a sun gear integrally connected to an external gear that is rotatably provided on an output shaft among external gears that form the shift ratio of the first gear stage;
a second planetary gear device provided with a sun gear integrally connected to an external gear that is rotatably provided on the output shaft among external gears that form the shift ratio of the second gear stage;
a third planetary gear device provided with a carrier integrally connected to an external gear that is rotatably provided on an input shaft among external gears that form the shift ratio of the third gear stage;
a fourth planetary gear device provided with a carrier integrally connected to an external gear that is rotatably provided on the input shaft among external gears that form the shift ratio of the fourth gear stage;
brakes respectively controlling rotation of ring gears of the first through fourth planetary gear devices;
and
a controller controlling the brakes.

4 more elements

Dependencies are inferred from the claim text.

Automated manual transmission for vehicle

Life of this patent

Automated manual transmission for vehicle

Life of this patent

Abstract

Claims10