US 11,420,512 B2 · Integrated transmission with CVP and power electronics apparatus

Abstract

An integrated transmission includes a transmission housing having a first housing face through which the input shaft extends; a CVP housed within the housing; and a transmission assembly. The transmission assembly includes an input arrangement contained within the housing and having at least one input transmission component selectively coupling the engine power and the CVP power; a variator arrangement contained within the housing, configured to receive the engine and CVP power and to selectively transfer the engine power, CVP power, and a summing of engine and CVP power as variator output power; and a transmission gear arrangement contained within the transmission housing engaged with the variator arrangement and configured to provide a selective gear reduction for transmission to an output shaft that extends out of the transmission housing. The integrated transmission includes a power electronics apparatus arranged within or on the transmission housing and electrically coupled to the CVP.

Claims20

Dependent claims

An integrated transmission for a work vehicle powertrain having an engine delivering engine power to an input shaft, the integrated transmission comprising:

a transmission housing having a first housing face through which the input shaft extends;
a continuously variable power source (CVP) housed within the transmission housing and configured to generate CVP power;
a transmission assembly comprising:
an input arrangement contained within the transmission housing and selectively coupling the engine power from the input shaft and the CVP power from the CVP;
a variator arrangement contained within the transmission housing, the variator arrangement configured to receive the engine power and the CVP power through the input arrangement and to selectively transfer the engine power, transfer the CVP power, and transfer a summing of the engine power and the CVP power as variator output power;
and
a transmission gear arrangement contained within the transmission housing engaged with the variator arrangement and configured to provide a selective gear reduction for transmission of transmission output power from the variator output power to an output shaft that extends out of the transmission housing;
and
a power electronics apparatus arranged within or on the transmission housing and electrically coupled to the CVP.

6 more elements

An integrated transmission housing for a transmission with a continuously variable power source (CVP) configured to generate CVP power and a transmission assembly that receives engine power via an input shaft, the integrated transmission housing comprising:

a first housing shell portion with a first face, a first side wall, and a first shell portion flange circumscribing the first side wall;
a cylinder arranged within the first housing shell portion configured to house the CVP;
and
a second housing shell portion with a second face, a second side wall, and a second shell portion flange circumscribing the second side wall,
wherein the first shell portion flange and the second shell portion flange are mated together such that at least a portion of the first face, the first side wall, the second face, and the second side wall collectively form a primary housing section configured to house the transmission assembly with an input arrangement selectively coupling the engine power from the input shaft and the CVP power from the CVP, a variator arrangement configured to receive the engine power and the CVP power through the input arrangement and to selectively transfer the engine power, transfer the CVP power, and transfer a summing of the engine power and the CVP power as variator output power, and a transmission gear arrangement engaged with the variator arrangement and configured to provide a selective gear reduction for transmission of transmission output power from the variator output power to an output shaft that extends out of the integrated transmission housing.

2 more elements

Dependencies are inferred from the claim text.

Integrated transmission with CVP and power electronics apparatus

Life of this patent

Integrated transmission with CVP and power electronics apparatus

Life of this patent

Abstract

Claims20