Huawei Digital Power Technologies Co., Ltd.

Tencent Technology (Shenzhen) Company Limited

Shaobo Yang

Jun Chen

Juan Li

Quanming Li

Hongbing Liu

Jiangang Wang

Jin Lin

Hu Zhong

Huafeng Ma

Xiaodong Ma

Man Liu

Fangjian Zhan

Nanjiang Liu

Bayaer Eerhemu

Haisong Xu

Chuanyang Li

A motor, a powertrain, and a device. A plurality of first oil channels are formed between an inner surface of a housing and an outer surface of a stator core, second oil channels are formed at groove roots of coil slots of the stator core, to form double-layer oil channels at the outer surface of the stator core and the root of the coil slot of the stator core, and ensure effective cooling of the stator core and a coil winding. After cooling oil is injected from an oil filling port, a flow direction of the cooling oil in some of the second oil channels is opposite to that of cooling oil in a remaining second oil channel, so that interleaved reverse flows are implemented, and axial temperature of the stator core and the coil winding is more even.

Motor, powertrain, and device

A power assembly includes a rotor iron core, a gear set, a rotating shaft, and an oil-pumping system. The rotating shaft is fixedly connected to the rotor iron core and a driving gear in the gear set. The housing has an oil storage pool at a bottom and an oil collection tank at a high location, a part of a structure of a first gear in the gear set is located in the oil storage pool, and the first gear rotates to drive cooling oil in the oil storage pool to be raised and collected by the oil collection tank. The rotating shaft has a cooling oil channel inside. The cooling oil in the oil collection tank flows to the cooling oil channel, to dissipate heat from the rotor iron core.

Power assembly and electric vehicle

A temperature control system includes: a first cooling circuit, where a first cooling medium is circulated in the first cooling circuit, and the first cooling circuit is configured to cool a first structural unit; a second cooling circuit, where a second cooling medium is circulated in the second cooling circuit, and the second cooling circuit is configured to cool a second structural unit; and a heat exchanger, separately connected to the first cooling circuit and the second cooling circuit, and configured to perform heat exchange between the first cooling medium and the second cooling medium, where the first cooling circuit includes a bypass branch, and the bypass branch is connected in parallel to the heat exchanger. According to the temperature control system, heat dissipation efficiency for an inverter and an overall heat dissipation capability for a powertrain are improved.

Temperature control system, temperature control method, and vehicle

A powertrain includes a motor, a reducer, an oil pan, and a cooling system. The cooling system includes at least one heat exchanger and at least two oil pumps. The at least two oil pumps are configured to deliver, to the heat exchanger, cooling oil sucked from the oil pan. The heat exchanger is configured to cool the cooling oil sucked by the at least two oil pumps. An oil outlet port of the heat exchanger is connected to an oil passage in the motor and an oil passage in the reducer, so that a part of the cooling oil cools the motor through the oil passage in the motor, and another part of the cooling oil cools the reducer through the oil passage in the reducer. The embodiments can improve a cooling effect of the cooling system for the powertrain.

Powertrain and electric vehicle

A method and apparatus for providing a location service are disclosed. The method is performed at a mobile device having one or more processors and memory for storing programs to be executed by the one or more processors. The method includes storing respective geographic positions for a set of points of interest (POIs). The method includes determining a current location and a current viewing direction of a user while storing the respective geographic positions of the set of POIs. The method also includes identifying, based on the stored geographic positions and the current location and viewing direction of the user, a subset of POIs within a current field of view associated with the user from the set of POIs. The method further includes mapping the current location of the user and the respective geographic positions of the subset of POIs onto a user interface displayed on the mobile device.

Method and device for providing location services

Growing community of inventors

Dongguan, China

Shaobo Yang