WO2016184108A1 - 一种基于轮毂直驱电机的电动汽车悬架系统 - Google Patents

一种基于轮毂直驱电机的电动汽车悬架系统 Download PDF

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WO2016184108A1
WO2016184108A1 PCT/CN2015/098914 CN2015098914W WO2016184108A1 WO 2016184108 A1 WO2016184108 A1 WO 2016184108A1 CN 2015098914 W CN2015098914 W CN 2015098914W WO 2016184108 A1 WO2016184108 A1 WO 2016184108A1
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Prior art keywords
motor
hub
direct drive
suspension system
system based
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French (fr)
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刘小青
邓佳
吴正斌
松田笃志
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Shenzhen Institute of Advanced Technology of CAS
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Shenzhen Institute of Advanced Technology of CAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B60G9/02—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle, e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel

Definitions

  • the invention relates to the technical field of new energy vehicles, in particular to an electric vehicle suspension system based on a direct drive motor of a hub.
  • the structure of the hub electric drive system disclosed in the British Patent Application (GB 247989A), although it can be installed on existing conventional suspension structures.
  • the structure is complicated, and the brake system is directly integrated beside the hub motor.
  • the high temperature generated by the brake pads during braking can be quickly transmitted to the body of the motor, causing the permanent magnet in the motor to be demagnetized due to the high temperature, resulting in the motor.
  • the performance is degraded and the service life is shortened.
  • Embodiments of the present invention provide an electric vehicle suspension system based on a direct drive motor of a hub to solve the complicated structure of a suspension system of a conventional fuel vehicle, and the brake system is directly integrated with the hub motor, and the brake pad is generated.
  • the high temperature is easy to demagnetize the permanent magnets in the motor and the performance of the motor is degraded.
  • An electric vehicle suspension system based on a direct drive motor of a hub comprising a main beam portion, a brake system portion and a power system portion;
  • the main beam portion includes two rocker arms (1) vertically mounted on the main shaft (2), and a motor fixing box is respectively disposed at a mounting position of the two rocker arms (1) and the main shaft (2) ( 3); the two rocker arms (1) are also respectively provided with a vehicle bottom connection end (22);
  • the powertrain portion includes an in-wheel motor (10) mounted on two of the motor mounting boxes (3), and a hub transfer connecting the two automotive hubs (11) to the two hub motors (10), respectively. a disk (17); a terminal of the hub motor (10) and a motor controller (20) for controlling the hub motor (10) inside the motor fixing box (3);
  • the brake system is partially disposed on a side of the motor fixing box (3) away from the hub motor (10) and the automobile hub (11); the brake system portion includes a coupling spline (14), the coupling a spline (14) coupling the brake pad (5) to a shaft of the hub motor (10) passing through the motor fixing case (3) and being locked and fixed by a lock nut (16); the brake The system portion further includes a brake structure that is assembled by the caliper mounting plate (6), the caliper (7), the support plate (8), the support column (13), the column (18), and is mounted on the motor. The caliper (7) is disposed on the outer side of the brake pad (5) and brakes the brake pad (5) when braking.
  • the main beam portion further includes a pull rod (4), and two ends of the pull rod (4) are respectively connected to the two motor fixing boxes (3).
  • the power system portion further includes a dust cover (12) mounted on the motor fixing box (3), and the dust cover (12) passes the hub motor (10) through an oil seal (15)
  • the terminal block and the motor controller (20) are sealed in the motor fixing case (3).
  • a through hole (21) is opened in the rocker arm (1), and a power supply line and a control line of the hub motor (10) are led out through the through hole (21).
  • the electric vehicle suspension system based on the direct drive motor of the hub further includes two shock absorbers (9); one end of the shock absorber (9) passes through the shock absorber mount (19) and the The motor fixing box (3) is connected, and the other end of the damper (9) is connected to the chassis of the vehicle.
  • An electric vehicle suspension system based on a hub direct drive motor comprising a main beam portion, a brake system portion and a power system portion, is simple in structure, and the brake system is partially disposed in the motor fixing box (3). Keep away from the side of the hub motor (10) and the car hub (11), so as to avoid the high temperature generated by the brake pads on the brake body, which causes the demagnetization of the permanent magnets in the motor, resulting in degraded performance of the motor. The problem of shortened service life.
  • FIG. 1 is a schematic exploded view of an electric vehicle suspension system based on a hub direct drive motor according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional structural view of an electric vehicle suspension system based on a hub direct drive motor according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view 1 of an electric vehicle suspension system based on a hub direct drive motor according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view 2 of an electric vehicle suspension system based on a hub direct drive motor according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram 3 of an electric vehicle suspension system based on a hub direct drive motor according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a mounting position of an electric vehicle suspension system and a vehicle chassis based on a hub direct drive motor according to an embodiment of the present invention.
  • an embodiment of the present invention provides an electric vehicle suspension system based on a hub direct drive motor, including a main beam portion, a brake system portion, and a power system portion.
  • the main beam portion comprises two rocker arms (1) vertically mounted on the main shaft (2), and a motor fixing box (3) is respectively arranged at a mounting position of the two rocker arms (1) and the main shaft (2);
  • the two rocker arms (1) are also respectively provided with a vehicle bottom connection end (22); as shown in Fig. 6, the vehicle bottom connection end (22) can be connected to the vehicle bottom.
  • the powertrain portion includes an in-wheel motor (10) mounted on two motor mounting boxes (3), and a hub interposer (17) that connects the two automotive hubs (11) to the two hub motors (10), respectively. ); in the motor fixing box (3) A terminal for the hub motor (10) and a motor controller (20) for controlling the hub motor (10) are provided inside.
  • the brake system is partially disposed on a side of the motor fixing box (3) remote from the hub motor (10) and the automobile hub (11);
  • the brake system portion includes a coupling spline (14), and the coupling spline (14) connects the brake pad (5) ) is coupled to the shaft of the hub motor (10) passing through the motor fixing box (3), and is locked and fixed by the lock nut (16), thereby driving the brake pads (5) together when the hub motor (10) rotates Rotating;
  • the brake system portion further includes a brake structure, the brake structure is combined by the caliper mounting plate (6), the caliper (7), the support plate (8), the support column (13), the column (18), and is mounted on the motor
  • the caliper (7) is disposed outside the brake pad (5), and brakes the brake pad (5) when braking.
  • the main beam portion further includes a pull rod (4), and two ends of the pull rod (4) are respectively connected to the two motor fixing boxes (3).
  • the suspension system can be reinforced by the tie rods (4) and the left and right wheels can be balanced.
  • the power system portion further includes a dust cover (12) mounted on the motor fixing box (3), and the dust cover (12) connects the hub motor (10) through the oil seal (15).
  • the terminal and the motor controller (20) are sealed in the motor fixing case (3).
  • the dust cover (12) and the oil seal (15) the inside of the motor fixing box can be drained and dustproof.
  • the motor controller and the hub motor terminal are integrated into the motor fixing box, saving space.
  • a through hole (21) is opened in the rocker arm (1), and a power supply line and a control line of the hub motor (10) are taken out through the through hole (21).
  • the number of the through holes (21) is four for each rocker arm (1), but is not limited thereto.
  • the electric vehicle suspension system based on the direct drive motor of the hub further includes two shock absorbers (9); one end of the shock absorber (9) passes through the shock absorber mount (19) and The motor fixing box (3) is connected, and the other end of the shock absorber (9) is connected to the chassis of the vehicle.
  • the schematic diagram of the electric vehicle suspension system based on the direct drive motor of the hub is mounted on the chassis of the automobile, as shown in FIG. 6 .
  • An electric vehicle suspension system based on a hub direct drive motor comprising a main beam portion, a brake system portion and a power system portion, is simple in structure, and the brake system is partially disposed in the motor fixing box (3). Aside from the side of the hub motor (10) and the car hub (11), the brake system is separated from the hub motor by a motor fixing box, thereby avoiding the high temperature generated by the brake pad during braking to be transmitted to the body of the motor, resulting in a motor The permanent magnet in the phenomenon of demagnetization causes the performance of the motor to decrease and the service life to be shortened.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

一种基于轮毂直驱电机的电动汽车悬架系统，该系统包括主梁部分、刹车系统部分和动力系统部分；主梁部分包括垂直安装于主轴(2)上的两个摇臂(1)，在两个摇臂(1)与主轴(2)的安装处分别设置有一电机固定盒(3)；动力系统部分包括安装在两个电机固定盒(3)上的轮毂电机(10)，以及将两个汽车轮毂(11)分别连接到两个轮毂电机(10)上的轮毂转接盘(17)；在电机固定盒(3)内部设置有轮毂电机(10)的接线端子以及用于控制轮毂电机(10)的电机控制器(20)；刹车系统部分设置于电机固定盒(3)的远离轮毂电机(10)和汽车轮毂(11)的一侧。

Description

一种基于轮毂直驱电机的电动汽车悬架系统 技术领域
本发明涉及新能源汽车技术领域，尤其涉及一种基于轮毂直驱电机的电动汽车悬架系统。
背景技术
当前，随着能源短缺和空气污染的日趋严重，世界上很多国家都在大力发展节能、环保的电动汽车。伴随着电动汽车的迅速发展，各种电动汽车的电机也种类繁多，且装配方式也多种多样。当前大部分电动汽车的电机都是内转子电机，且为前轮驱动，并且安装在车辆的前舱内，而采用后轮直驱动力系统的较为少见。随着技术的发展，目前国内外已经有比较好的轮毂直驱电机，可直接装配在汽车的轮毂中，可以省去减速器、变速器、差速器等附件，减少电机动力在传递过程中的损失，从而减少车辆生产的成本。然而，现有的电动汽车都是沿用传统燃油汽车的悬架系统，主要分为非独立悬架和独立悬架两种，都不适合现有的轮毂电机的安装使用。目前还没有一种悬架系统，适用这种轮毂直驱电机的安装使用。
另外英国专利申请(GB 247989A)公开的轮毂电驱系统的结构，虽然可安装在现有传统的悬架结构上。但是结构复杂，并且刹车系统直接集成在轮毂电机旁，刹车时刹车片所产生的高温会迅速的传导到电机的本体上，造成电机中的永磁体受到高温的影响会产生退磁的现象，导致电机的性能下降，使用寿命缩短。
发明内容
本发明的实施例提供一种基于轮毂直驱电机的电动汽车悬架系统，以解决当前电动汽车沿用传统燃油汽车的悬架系统结构复杂，且刹车系统直接集成在轮毂电机旁，刹车片所产生的高温容易使电机中的永磁体退磁，电机性能下降的问题。
为达到上述目的，本发明采用如下技术方案：
一种基于轮毂直驱电机的电动汽车悬架系统，包括主梁部分、刹车系统部分和动力系统部分；
所述主梁部分包括垂直安装于主轴(2)上的两个摇臂(1)，在所述两个摇臂(1)与所述主轴(2)的安装处分别设置有一电机固定盒(3)；所述两个摇臂(1)还分别设置有车底连接端(22)；
所述动力系统部分包括安装在两个所述电机固定盒(3)上的轮毂电机(10)，以及将两个汽车轮毂(11)分别连接到两个轮毂电机(10)上的轮毂转接盘(17)；在所述电机固定盒(3)内部设置有轮毂电机(10)的接线端子以及用于控制轮毂电机(10)的电机控制器(20)；
所述刹车系统部分设置于所述电机固定盒(3)的远离所述轮毂电机(10)和汽车轮毂(11)的一侧；所述刹车系统部分包括联接花键(14)，所述联接花键(14)将刹车片(5)联接到穿过所述电机固定盒(3)的所述轮毂电机(10)的轴上，并通过锁紧螺母(16)锁紧固定；所述刹车系统部分还包括一制动结构，所述制动结构由卡钳安装板(6)、卡钳(7)、支撑板(8)、支撑柱(13)、立柱(18)组合，并安装在电机固定盒(3)上；所述卡钳(7)设置于所述刹车片(5)的外侧，并在刹车时刹紧所述刹车片(5)。
进一步的，所述主梁部分还包括一拉杆(4)，所述拉杆(4)的两端分别连接两个所述电机固定盒(3)。
进一步的，所述动力系统部分还包括安装于所述电机固定盒(3)上的防尘盖(12)，所述防尘盖(12)通过油封(15)将所述轮毂电机(10)的接线端子以及所述电机控制器(20)密封于所述电机固定盒(3)中。
此外，在所述摇臂(1)上开设有通孔(21)，所述轮毂电机(10)的电源线路和控制线路通过所述通孔(21)引出。
进一步的，所述基于轮毂直驱电机的电动汽车悬架系统，还包括两个减震器(9)；所述减震器(9)的一端通过减震器安装座(19)与所述电机固定盒(3)连接，所述减震器(9)的另一端与汽车底盘连接。
本发明实施例提供的一种基于轮毂直驱电机的电动汽车悬架系统，包括主梁部分、刹车系统部分和动力系统部分，结构较为简单，且刹车系统部分设置于电机固定盒(3)的远离轮毂电机(10)和汽车轮毂(11)的一侧，从而避免了刹车时刹车片所产生的高温传导到电机的本体上，造成电机中的永磁体产生退磁的现象，导致电机的性能下降，使用寿命缩短的问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统的分解结构示意图；
图2为本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统的剖面结构示意图；
图3为本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统的结构示意图一；
图4为本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统的结构示意图二；
图5为本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统的结构示意图三；
图6为本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统与汽车底盘的安装位置示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1至图5所示，本发明实施例提供一种基于轮毂直驱电机的电动汽车悬架系统，包括主梁部分、刹车系统部分和动力系统部分。
其中，该主梁部分包括垂直安装于主轴(2)上的两个摇臂(1)，在两个摇臂(1)与主轴(2)的安装处分别设置有一电机固定盒(3)；该两个摇臂(1)还分别设置有车底连接端(22)；如图6所示，该车底连接端(22)可以连接汽车车底。通过两个摇臂(1)与主轴(2)垂直安装，可以形成稳定的“工”型结构。
该动力系统部分包括安装在两个电机固定盒(3)上的轮毂电机(10)，以及将两个汽车轮毂(11)分别连接到两个轮毂电机(10)上的轮毂转接盘(17)；在电机固定盒 (3)内部设置有轮毂电机(10)的接线端子以及用于控制轮毂电机(10)的电机控制器(20)。
刹车系统部分设置于电机固定盒(3)的远离轮毂电机(10)和汽车轮毂(11)的一侧；刹车系统部分包括联接花键(14)，联接花键(14)将刹车片(5)联接到穿过电机固定盒(3)的轮毂电机(10)的轴上，并通过锁紧螺母(16)锁紧固定，从而在轮毂电机(10)转动时，带动刹车片(5)一起转动；刹车系统部分还包括一制动结构，制动结构由卡钳安装板(6)、卡钳(7)、支撑板(8)、支撑柱(13)、立柱(18)组合，并安装在电机固定盒(3)上；卡钳(7)设置于刹车片(5)的外侧，并在刹车时刹紧刹车片(5)。
进一步的，如图1所示，主梁部分还包括一拉杆(4)，拉杆(4)的两端分别连接两个电机固定盒(3)。这样，通过拉杆(4)可以对悬架系统进行加固，并能平衡左右两个车轮。
进一步的，如图1所示，动力系统部分还包括安装于电机固定盒(3)上的防尘盖(12)，防尘盖(12)通过油封(15)将轮毂电机(10)的接线端子以及电机控制器(20)密封于电机固定盒(3)中。通过防尘盖(12)和油封(15)密封的方式，可以对电机固定盒内部起到放水防尘的作用。同时，将电机控制器与轮毂电机的接线端子集成于电机固定盒中，节省了空间。
此外，如图1所示，在摇臂(1)上开设有通孔(21)，轮毂电机(10)的电源线路和控制线路通过通孔(21)引出。在本实施例中，通孔(21)的个数为每个摇臂(1)设有四个，但不仅局限于此。
进一步的，如图1所示，基于轮毂直驱电机的电动汽车悬架系统，还包括两个减震器(9)；减震器(9)的一端通过减震器安装座(19)与电机固定盒(3)连接，减震器(9)的另一端与汽车底盘连接。其中，该基于轮毂直驱电机的电动汽车悬架系统安装于汽车底盘的示意图，如图6所示。
本发明实施例提供的一种基于轮毂直驱电机的电动汽车悬架系统，包括主梁部分、刹车系统部分和动力系统部分，结构较为简单，且刹车系统部分设置于电机固定盒(3)的远离轮毂电机(10)和汽车轮毂(11)的一侧，刹车系统部分与轮毂电机之间有电机固定盒相隔，从而避免了刹车时刹车片所产生的高温传导到电机的本体上，造成电机中的永磁体产生退磁的现象，导致电机的性能下降，使用寿命缩短的问题。
本发明中应用了具体实施例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (5)

  1. 一种基于轮毂直驱电机的电动汽车悬架系统，其特征在于，包括主梁部分、刹车系统部分和动力系统部分；
    所述主梁部分包括垂直安装于主轴(2)上的两个摇臂(1)，在所述两个摇臂(1)与所述主轴(2)的安装处分别设置有一电机固定盒(3)；所述两个摇臂(1)还分别设置有车底连接端(22)；
    所述动力系统部分包括安装在两个所述电机固定盒(3)上的轮毂电机(10)，以及将两个汽车轮毂(11)分别连接到两个轮毂电机(10)上的轮毂转接盘(17)；在所述电机固定盒(3)内部设置有轮毂电机(10)的接线端子以及用于控制轮毂电机(10)的电机控制器(20)；
    所述刹车系统部分设置于所述电机固定盒(3)的远离所述轮毂电机(10)和汽车轮毂(11)的一侧；所述刹车系统部分包括联接花键(14)，所述联接花键(14)将刹车片(5)联接到穿过所述电机固定盒(3)的所述轮毂电机(10)的轴上，并通过锁紧螺母(16)锁紧固定；所述刹车系统部分还包括一制动结构，所述制动结构由卡钳安装板(6)、卡钳(7)、支撑板(8)、支撑柱(13)、立柱(18)组合，并安装在电机固定盒(3)上；所述卡钳(7)设置于所述刹车片(5)的外侧，并在刹车时刹紧所述刹车片(5)。
  2. 根据权利要求1所述的基于轮毂直驱电机的电动汽车悬架系统，其特征在于，所述主梁部分还包括一拉杆(4)，所述拉杆(4)的两端分别连接两个所述电机固定盒(3)。
  3. 根据权利要求1所述的基于轮毂直驱电机的电动汽车悬架系统，其特征在于，所述动力系统部分还包括安装于所述电机固定盒(3)上的防尘盖(12)，所述防尘盖(12)通过油封(15)将所述轮毂电机(10)的接线端子以及所述电机控制器(20)密封于所述电机固定盒(3)中。
  4. 根据权利要求1所述的基于轮毂直驱电机的电动汽车悬架系统，其特征在于，在所述摇臂(1)上开设有通孔(21)，所述轮毂电机(10)的电源线路和控制线路通过所述通孔(21)引出。
  5. 根据权利要求1所述的基于轮毂直驱电机的电动汽车悬架系统，其特征在于，所述基于轮毂直驱电机的电动汽车悬架系统，还包括两个减震器(9)；所述减震器(9)的一端通过减震器安装座(19)与所述电机固定盒(3)连接，所述减震器(9)的另一 端与汽车底盘连接。
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