Robert Boschgmbh

Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Wael Mohamed

Tobias Schlittenbauer

Ianislav Krastev

Axel Heitmann

Falk Heilfort

Martin Armbruster

Michael Wolfgang Goerdeler

The invention relates to a housing () of an electric drive having a stator () and a rotor for an electric axle module of an electrically driven vehicle, comprising a cooling duct () through which a cooling medium flows. The cooling duct () is formed by a first duct geometry () on an inner side () of a sleeve-shaped extension () of the housing () and by a second duct geometry () configured on a casing () of a sleeve ().

Housing of an electric drive

The invention relates to a multi-speed planetary transmission (). The multi-speed planetary transmission () comprises a driveshaft (), which comprises a sun gear () and a ring gear (), and an output shaft (), which comprises a planet carrier with at least one planet gear (). The drive shaft () and the output shaft () can be connected together or separated from each other by means of a clutch (). The multi-speed planetary transmission () has a freewheel (), via which a shift is carried out between a first transmission ratio i_1 and a second transmission ratio i_2 under a load using the clutch ().

Multi-speed planetary transmission for a vehicle with at least one electric machine

The invention relates to a power-shift multi-speed transmission (), comprising at least one stepped planet gear (), which revolves around a first sun gear () and in a first ring gear (). The first ring gear () is held on a lockable freewheel (). A first planet gear step () of the stepped planet gear () revolves in the first ring gear (), while a second planet gear step () revolves in a second ring gear (), with which at least one brake () is associated.

Power-shift multi-speed transmission

The invention relates to a power-shift multi-speed transmission () provided in the power train of a vehicle, comprising at least one sun gear (), at least one stepped planetary gear (), at least one ring gear (), and an input shaft () and an output shaft (). The power-shift multi-speed transmission () can be shifted into a shift mode of a first speed or into a shift mode of a second speed and vice versa by means of the at least one stepped planetary gear (). A first brake () is associated with a first ring gear () and a second brake () is associated with a second ring gear (). Depending on the actuation of these brakes, in the shift modes there is at least one torque flow under acceleration, or at least one torque flow on overrun, through the power-shift multi-speed transmission ().

A drive system for a vehicle has a drive motor and an axle. A driving torque generated by the drive motor is transmitted via a gear chain and a planetary transmission to the axle. The drive system can be assembled modularly, and wherein the planetary transmission is coordinated with the drive motor to determine an overall transmission ratio.

Growing community of inventors

Hemmingen, Germany

Wael Mohamed