公开(公告)号：US20160248303A1

公开(公告)日：2016-08-25

申请号：US15027517

申请日：2014-10-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroaki KIYOKAMI ,  Takuya KODAMA ,  Yasuhiro SAITO ,  Mitsutaka MATSUMURA

IPC: H02K9/19 ,  H02K1/27

CPC classification number: H02K9/19 ,  F16H57/04 ,  H02K1/2706 ,  H02K7/003

Abstract: An electric motor includes a rotor shaft, and the rotor shaft has a shaft-core oil passage and radial oil passages. The shaft-core oil passage includes an inner wall facing radially inward. The radial oil passages are provided toward a radial outer side of the rotor shaft from the shaft-core oil passage. The radial oil passages penetrate through the rotor shaft. The radial oil passages have corresponding one of first connection openings connected to the shaft-core oil passage, so that oil that is not discharged from the first connection openings to the radial oil passage is supplied to other supply destinations. A distance of the first connection openings from the shaft core is shorter than a distance, from the shaft core, of that part of the inner wall which is not provided with the first connection openings.

Abstract translation: 电动机包括转子轴，转子轴具有轴芯油路和径向油路。 轴芯油通道包括面向径向向内的内壁。 径向油路从轴芯油路朝向转子轴的径向外侧设置。 径向油通道穿过转子轴。 径向油路具有与轴芯油路连接的相应的一个第一连接开口，使得不从第一连接口向径向油路排出的油被供给到其他供给目的地。 第一连接开口与轴芯的距离比未设置有第一连接开口的内壁部分的轴芯的距离短。

公开(公告)号：US20190308603A1

公开(公告)日：2019-10-10

申请号：US16367677

申请日：2019-03-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutaka MATSUMURA

IPC: B60W10/08 ,  G05D1/00

Abstract: A control system is installed on a vehicle having an electric motor as a drive power source. The control system includes an electronic control unit configured to switch the vehicle between an automatic driving mode using automatic drive control, and a manual driving mode in which the vehicle is operated by a driver. The electronic control unit is configured to limit the load factor of the electric motor, in the case where the temperature of the electric motor is higher than a first threshold temperature when the vehicle travels in the automatic driving mode, and the case where the temperature of the electric motor is higher than a second threshold temperature when the vehicle travels in the manual driving mode. The second threshold temperature is set to a value higher than the first threshold temperature.