公开(公告)号：US20040163409A1

公开(公告)日：2004-08-26

申请号：US10785197

申请日：2004-02-25

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Yuki Nakajima ,  Masahiro Tsukamoto ,  Masakazu Kobayashi ,  Yutaro Kaneko ,  Hiroyuki Kaneko ,  Toshiro Shinohara ,  Makoto Iwashima ,  Yasuhiko Kitajima ,  Akihiro Hanamura ,  Kouichirou Yonekura ,  Tadayuki Hatsuda

IPC: F25B007/00 ,  F25B031/00 ,  F25D023/12

CPC classification number: F16H57/04 ,  B60L1/02 ,  B60L3/003 ,  B60L3/0061 ,  B60L11/1803 ,  B60L2210/40 ,  B60L2240/425 ,  B60L2240/525 ,  B60L2270/147 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7241

Abstract: A drive unit for an electric vehicle is comprised of a motor, an inverter which supplies alternating current electric power to the motor, a speed reducer which is connected to the motor, and a cooling system which cools the motor, the inverter and the speed reducer. The speed reducer reduces a revolution speed of a mechanical output of the motor. The cooling system comprises a heat exchanger at which first refrigerant for receiving heat of at least one of the motor and the inverter receives heat of second refrigerant for receiving heat of at least one of the motor and the speed reducer.

Abstract translation: 电动车辆的驱动单元由电动机，向电动机供给交流电力的逆变器，与电动机连接的减速器以及冷却电动机，变频器和减速器的冷却系统 。 减速机降低了电机机械输出的转速。 冷却系统包括热交换器，在该热交换器中，用于接收电动机和逆变器中的至少一个的第一制冷剂接收用于接收电动机和减速器中的至少一个的第二制冷剂的热量。

公开(公告)号：US20040108778A1

公开(公告)日：2004-06-10

申请号：US10700645

申请日：2003-11-05

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Masahiro Tsukamoto ,  Yuki Nakajima ,  Toshiro Shinohara ,  Hiroyuki Kaneko ,  Yasuhiko Kitajima ,  Makoto Iwashima ,  Akihiro Hanamura ,  Kouichirou Yonekura ,  Tadayuki Hatsuda ,  Masakazu Kobayashi ,  Yutaro Kaneko

IPC: H02K011/00 ,  H02K007/10

CPC classification number: H02K7/116 ,  B60K1/00 ,  B60L15/007 ,  H02K11/33 ,  Y02T10/641 ,  Y02T10/645

Abstract: An integrated drive motor unit which is integrally constituted of a motor, an inverter and a reducer differential unit arranged in a row, and a frame member. The reducer differential unit is connected to an output shaft of the motor, and distributes torque of the motor to a pair of axles, one of which passes through the inverter. The frame member constitutes a part of the motor and a part of the reducer differential unit, and has a portion surrounding the axle passing through the inverter. The inverter is disposed outside the frame member.

Abstract translation: 一体的驱动电动机单元，其由电动机，逆变器和排列成一排的减速器差动单元一体地构成，框架构件。 减速器差动单元连接到电动机的输出轴，并将电动机的转矩分配给一对轴，其中一个轴通过逆变器。 框架构件构成电动机的一部分和减速器差速器的一部分，并且具有围绕通过逆变器的车轴的部分。 逆变器设置在框架构件的外部。

公开(公告)号：US20040200654A1

公开(公告)日：2004-10-14

申请号：US10816892

申请日：2004-04-05

Applicant: Nissan Motor Co., Ltd.

Inventor： Tadayuki Hatsuda ,  Tetsuya Niikuni ,  Tsutomu Tanimoto

IPC: B60K001/00

CPC classification number: B60K6/26 ,  B60K6/36 ,  B60K6/40 ,  B60K6/44 ,  B60K6/52 ,  B60K6/54 ,  B60K7/0007 ,  B60K17/043 ,  B60K17/356 ,  B60T2270/603 ,  B60W10/08 ,  Y02T10/52 ,  Y02T10/623 ,  Y02T10/6265 ,  Y10S903/906

Abstract: A drive apparatus basically comprises left and right drive units each including at least a reduction gear, an electric motor without a permanent magnet, and a brake disc. Each of the left and right drive units is housed substantially within a rim of each of rear wheels which are driven wheels. A 4WD control unit is configured to control a pair of inverters to separately drive the electric motors when a vehicle speed is in a range between a standing start speed and a prescribed vehicle speed, and to stop driving the electric motors when the vehicle speed is equal to or greater than the prescribed vehicle speed to place the rear wheels in a driven state. Accordingly, a friction loss due to a cogging torque encountered in a conventional permanent magnet-type motor is eliminated, and a lightweight drive apparatus is obtained. Fuel efficiently is accordingly improved.

Abstract translation: 驱动装置基本上包括左右驱动单元，每个驱动单元至少包括减速齿轮，没有永磁体的电动马达和制动盘。 左驱动单元和右驱动单元中的每一个基本上容纳在作为从动轮的每个后轮的边缘中。 4WD控制单元被配置为当车速在直立起动速度和规定车速之间的范围内时控制一对逆变器分别驱动电动机，并且当车速相等时停止驱动电动机 达到或大于规定车速以将后轮置于驱动状态。 因此，消除了由于常规永磁式电动机中遇到的齿槽转矩引起的摩擦损失，并且获得了轻质的驱动装置。 燃料效率相应提高。