Patent ID: 11865908
Assignee: HOFER POWERTRAIN INNOVATION GMBH
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 19:
20. A dual transmission for a powertrain of a motor vehicle, comprising
two input shafts being configured to be driven by two electric machines of the motor vehicle, and
two separate single transmissions, each single transmission configured for being connected with a separate wheel of the motor vehicle and to provide a respective speed reduction,
wherein each single transmission is a two-stage spur gear transmission with three positions for gear centers in a common transmission case, a first position of the three positions being occupied by an input shaft of the two input shafts and a second position of the three positions being occupied by an output gear,
wherein an input shaft center and an output gear center are arranged in a middle region of the dual transmission and the input shaft of each single transmission extends transversely to a case longitudinal direction of the transmission case,
wherein an arrangement of the input shaft center and the output gear center defines a horizontal reference plane within the transmission case at a first distance from a transmission case bottom, when the dual transmission is in a mounting orientation corresponding to a mounted position of the dual transmission in the motor vehicle,
wherein a third position of the three positions is for a center of a middle stationary axle, the middle stationary axle being fixed to the transmission case and configured to stiffen the transmission case, the middle stationary axle being arranged parallel to the horizontal reference plane at a second distance from the transmission case bottom greater than the first distance,
wherein the first position, the second position and the third position define connecting lines between the third position and the first position and between the third position and the second position, said lines forming respective angles with the horizontal reference plane, each said respective angle being selected from a range between 10° and 50°.