Robert Boschgmbh

Takashi Shigematsu

Peter Ropertz

Tao Zhu

Shi Deng

Heinz-Bernd Haiser

Yanlin Li

Ralf Schmid

Xinhua Liu

Thomas Specker

Tingting Dong

Alina Sun

An N-phase electric machine, N being an integer &#x2265;3, includes a housing; i&#xd7;N stator windings arranged in a fixed manner in the housing, i being an integer &#x2265;2; and a rotatable rotor surrounded by the i&#xd7;N stator windings in the housing. The stator windings are consecutively divided into i subgroups in a circumferential direction, each subgroup having N stator windings. The electric machine further comprises i current control modules and i temperature measurement devices, each current control module being correspondingly electrically connected to the N stator windings in one corresponding subgroup, so that when the stator windings in the i subgroups are supplied with power by the i current control modules, a rotating magnetic field is generated around the rotor. Each temperature measurement device is configured to measure the temperature of one corresponding subgroup in the i subgroups during operation of the electric machine.

Motor and control method therefore

An electric motor and inverter assembly () used in an electric vehicle or a hybrid electric vehicle to drive the vehicle's wheels to rotate is disclosed. The electric motor and inverter assembly comprises: an electric motor (), which includes a housing including a main shell (), an end cover () and a connecting cover (), wherein a cooling passage is formed in a wall of the housing such that coolant is able to flow in the cooling passage, and an end cover () and a connecting cover () are respectively connected to opposite ends of the main shell; and an inverter, which includes a housing () in which a power element and/or an electrical device is received, wherein the housing of the inverter contacts the connecting cover such that an interface is defined between the connecting cover and the housing of the inverter, and the coolant flowing through the cooling passage is able to contact the interface.

Electric motor and inverter assembly

An electric drive system () used in an electric vehicle or a hybrid electric vehicle to drive the vehicle's wheels to rotate. The electric drive system () includes an electric motor (). The electric motor () includes a housing in which a stator and a rotor are received. A transmission device () is operatively coupled to the electric motor (); and an output shaft () is operatively coupled to the transmission device (). The output shaft () extends from the transmission device () and is substantially parallel to the rotor's axis of the electric motor (). The electric drive system () also includes an inverter () secured over the housing of the electric motor () such that the inverter is located between the output shaft () and the housing of the electric motor ().

Electric drive system

Growing community of inventors

Shanghai, China

Takashi Shigematsu