WO2007108049A1

WO2007108049A1 - Vehicle drive device

Info

Publication number: WO2007108049A1
Application number: PCT/JP2006/305221
Authority: WO
Inventors: Hisaya Shimizu; Kazuto Oyama; Keiji Kunii; Kenichi Yoshida; Yousuke Umesaki
Original assignee: Hitachi, Ltd.
Priority date: 2006-03-16
Filing date: 2006-03-16
Publication date: 2007-09-27
Also published as: JPWO2007108049A1

Abstract

A vehicle drive device in which a vehicle power supply input/output part and a vehicle signal input/output part are isolated from external influential factors while a vehicle is traveling. A motor (3) is provided integrally with a motor control circuit (8) and a power module part (9) as a control part controlling the motor (3). The control part is disposed on the upper side of the motor (3). A positive connector (14) and a negative connector (15) constituting the vehicle power supply input/output part and a connector for vehicle signal constituting the vehicle signal input/output part are disposed on the same plane on the output shaft side of the motor (3). The control part is disposed in the plane of projection formed when a differential unit (20) as a member fitted to the output shaft of the motor (3) is projected upward.

Description

Specification

Vehicle drive device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a vehicle drive device, and more particularly to a vehicle drive device suitable for a motor that is a driving force source and an inverter that drives the motor.

Background art

[0002] In a vehicle drive device including a motor and an inverter, the motor and the inverter are connected to each other with a relatively large wire diameter using a power harness. The power supply harness connection part of the motor part and the inverter part needs a large terminal to connect a power supply harness with a large wire diameter. As the required output of the vehicle drive device increases, the current flowing through the power harness increases, so the wire diameter of the power harness increases further, and the power harness connection part of the motor and inverter increases accordingly. Need.

[0003] On the other hand, a vehicle driving apparatus in which a motor and an inverter are integrated is known (for example, see Patent Document 1). In the one described in Patent Document 1, the motor is cylindrical, and the control circuit is arranged on the side of the motor, relatively small parts are arranged near the motor, and large parts are arranged far away. As a result, the height of the device that integrates the motor and control circuit is reduced.

[0004] Patent Document 1: Japanese Unexamined Patent Publication No. 2000-23408

Disclosure of the invention

Problems to be solved by the invention

[0005] In the device described in Patent Document 1, since the control circuit is disposed on the side surface of the motor, an external factor during vehicle travel, for example, interference with a road structure caused by a vehicle lower force, becomes a problem. The one described in Patent Document 1 is used for electric bicycles, and the vehicle speed is relatively low, at 20 km / h or less, so it is less affected by external factors. However, it is not like electric vehicles, hybrid vehicles, and electric four-wheel drive vehicles. Since an electric vehicle travels at a speed of 100 km / h or more, the influence of external factors increases.

[0006] An object of the present invention is to provide a vehicle power input / output unit and a vehicle signal input / output unit that are externally connected to the vehicle while traveling. The object is to provide a vehicle drive device that can be avoided from the factors.

Means for solving the problem

[0007] (1) In order to achieve the above object, the present invention provides a vehicle drive device that includes a motor and a control unit that controls the motor, and the motor and the control unit are integrated. The control unit is disposed above the motor, and inputs a control signal from the vehicle side to the control unit, and a vehicle power input / output unit that inputs power for driving the motor to the control unit. The vehicle signal input / output unit to be pulled out in the same direction as the output shaft of the motor.

With this configuration, the vehicle power input / output unit and the vehicle signal input / output unit can be avoided from external factors while the vehicle is running.

[0008] (2) In the above (1), preferably, the vehicle power input / output unit and the vehicle signal input / output unit are projected when a member to be fitted to be engaged with an output shaft of the motor is projected upward. It is arranged in the plane.

(3) In the above (1), preferably, the vehicle power input / output unit and the vehicle signal input / output unit are arranged in a projection plane when the motor is projected upward.

(4) In the above (1), preferably, the vehicle power supply line connected to the vehicle power input / output unit and the vehicle signal line connected to the vehicle signal input / output unit are connected to the output shaft of the motor. It is fixed to the member to be fitted at the upper stop point of the member to be fitted.

(5) In the above (1), preferably, the vehicle power supply line connected to the vehicle power supply input / output unit and the vehicle signal line connected to the vehicle signal input / output unit are stopped at the upper part of the motor. At the point, it is fixed to the motor.

[0012] (6) In the above (1), preferably, the power supply harness between the motor and the control unit is disposed on the side opposite to the output shaft of the motor.

[0013] (7) In the above (6), preferably, the power harness is provided in a housing of the motor, and includes a back cover that covers the housing in which the power harness is accommodated. is there.

(8) In the above (1), preferably, the control unit includes a plurality of semiconductor switching elements. A motor module for controlling the output torque of the motor by outputting a signal for switching the semiconductor switching element of the power module unit in response to a command from the outside, and a power module unit for converting direct current DC power into AC power And the motor control circuit is stacked on the power module section.

(9) In the above (8), preferably, the vehicle signal input / output unit and the vehicle power input / output unit are drawn in the same direction and arranged in the vertical direction. The effect of the invention

According to the present invention, the vehicle power input / output unit and the vehicle signal input / output unit can be avoided from external factors during vehicle travel.

Brief Description of Drawings

FIG. 1 is a block diagram showing an overall configuration of a vehicle drive device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the overall configuration of the vehicle drive device according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a main configuration of a vehicle drive device according to an embodiment of the present invention.

FIG. 4 is a perspective view showing the appearance of a vehicle drive device according to one embodiment of the present invention.

FIG. 5 is a perspective view showing the appearance of a vehicle drive device according to one embodiment of the present invention.

FIG. 6 is a side view showing an external configuration of a vehicle drive device according to an embodiment of the present invention.

FIG. 7 is a side view showing an external configuration of a vehicle drive device according to a modification of the present invention.

Explanation of symbols

[0018] 1 ... Vehicle drive device

2 ... Rotor

2a… Output shaft

3 ... Motor

5 ... Stator

6a… Three-phase noise

6b ... Crimp terminal

7 ... Rotation detector 8… Motor control circuit

8a… Field connector

8b ... Connector for rotation detector

8c… Temperature sensor connector

8d… Control connector

9… Power module

9a… Power module output side bus bar

9b… Power module input side bus bar

9c… Power module case

10a ... Relay bus bar

10b ... Positive bus bar

10b, negative bus bar

13 ··· Relay bus bar

14 ··· Positive connector

15 ··· Negative connector

16 ... Vehicle signal connector

18 ··· Upper cover

19 ··· Back cover

20 ... Differential unit

21a ... DC positive side wire

21b ... DC negative wire

22 ... Vehicle signal line

23a… DC positive side wire fixing clip

23b… DC negative side wire fixing clip

23c… Vehicle signal line fixing clip

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the configuration of the vehicle drive device according to the embodiment of the present invention will be described with reference to FIGS. First, the overall configuration of the vehicle drive apparatus according to the present embodiment will be described with reference to FIG.

FIG. 1 is a block diagram showing the overall configuration of a vehicle drive device according to an embodiment of the present invention.

[0020] In the vehicle drive device 1, the motor 3, the motor control circuit (MC) 8, and the power module unit (PM) 9 are housed in a housing 1A that forms the outer shell of the device. The motor and inverter are integrated. A vehicle power input / output unit is formed outside the housing 1A, and a positive side connector 14, a negative side connector 15 to which a large current is supplied, a vehicle signal input / output unit, and a motor 3 are controlled. And a control signal connector 16 for receiving the above signals. The vehicle power input / output unit is a part that inputs electric power for driving the motor 3 to the main circuit including the power module unit (PM) 9. The vehicle signal input / output unit is a part that inputs a control signal to the motor control circuit (MC) 8 of the control unit from the vehicle side. Further, the output shaft of the motor unit 3 protrudes from the housing 1A to the outside so that the driving force of the motor 3 can be taken out. The output shaft of the motor 3 will be described later with reference to FIG.

Here, the motor 3 will be described by taking a three-phase rotating field type synchronous machine as an example. The power module (PM) 9 is composed of, for example, six semiconductor switching elements (IGBT and MOS-FET). Two semiconductor switching elements are connected in series to form a U-phase arm. The other two semiconductor switching elements are connected in series to form a V-phase arm. The remaining two semiconductor switching elements are connected in series to form a W-phase arm. U-phase arm, V-phase arm, and W-phase arm are connected in parallel. Each semiconductor switching element performs a switching operation based on a control signal input from the motor control circuit (MC) 8 and converts the DC power supplied from the outside through the positive connector 14 and the negative connector 15 into AC power. Converted and supplied to the armature winding of each phase of motor 3.

[0022] The positive side connector 14, the negative side connector 15 and the power module (PM) 9 are connected by a relay bus bar 13, a positive side bus bar 10b, a negative side bus bar 10b, and an input side bus bar 9b. Yes. Each of these bus bars will be described later with reference to FIG. A smoothing capacitor 17 is connected between the two input side bus bars 9b. Also, the positive bus bar 10 In b, a direct current sensor 12 for detecting a direct current input to the power module section (PM) 9 is provided. The direct current detected by the direct current sensor 12 is input to the motor control circuit (MC) 8.

[0023] The power module section (PM) 9 and the motor 3 are connected by an output side bus bar 9a, an intermediate bus bar 10a, and a harness 6a. These bus bars and harnesses will be described later with reference to FIGS. The intermediate bus bar 10a is connected to the harness 6a by a crimp terminal 6b provided at the end of the harness 6a. The intermediate nose bar 10a is provided with an alternating current sensor 11 for detecting a three-phase alternating current supplied from the power module (PM) 9 to the motor 3. The alternating current detected by the alternating current sensor 11 is input to the motor control circuit (MC) 8.

The motor control circuit (MC) 8 is provided with a field connector 8a, a rotation detector connector 8b, a temperature sensor connector 8c, and a control connector 8d. The control signal connector 16 and the control connector 8d are connected by a conductive wire. A torque command signal to be output by the motor 3 is input to the control signal connector 16 from an external upper control unit (for example, an engine control unit). A rotation speed signal and a rotation position signal of the motor 3 detected by the rotation detector 7 are input to the rotation detector connector 8b. The temperature sensor connector 8c receives the temperature signal of the motor 3 detected by the temperature sensor 7b.

[0025] The motor control circuit (MC) 8 is based on the torque command value input from the control signal connector 16 and the motor 3 rotation speed signal input from the rotation detector connector 8b. The control signal for switching the semiconductor switching element constituting the, and the control signal for the field current flowing through the field winding 7a of the motor 3 are output. The motor control circuit (MC) 8 receives the state of the vehicle drive device 1 such as temperature and voltage from the motor and inverter as input signals, determines the force / force force that the state of the vehicle drive device 1 can normally drive, It is also possible to suppress the function of this device when it cannot be driven.

Next, the mechanical configuration of the vehicle drive device according to the present embodiment will be described with reference to FIG. FIG. 2 is a perspective view showing the overall configuration of the vehicle drive device according to the embodiment of the present invention. The same reference numerals as those in FIG. 1 denote the same parts.

The motor 3 includes a stator 5 and a rotor 2 that is disposed on the inner peripheral side of the stator 5 via a gap and is rotatable. The stator 5 and the rotor 2 are housed inside the housing 1A. Since the rotor 2 of the motor 3 is a type having a field wire (field wire 7a in FIG. 1), a brush holder including a slip ring and a brush for energizing the rotor is provided. A current carrying harness (not shown) is drawn out from the brush holder.

[0028] The output shaft 2a of the motor 3 forms the shaft of the rotor 2, and is supported by a bearing 2b and a bearing (not shown) arranged on the output shaft side in the same manner as the bearing 2b. Yes. The output shaft 2a is splined according to the mating partner.

[0029] From the stator 5 of the motor 3, a three-phase harness 6a and a crimping terminal 6b, which form a part of the power harness, protrude. The harness 6a is pulled out to the non-output side of the motor 3. The harness 6a is connected to the armature winding in the stator. A temperature sensor (temperature sensor 7b in Fig. 1) can be installed to detect the temperature of the stator 5. The signal harness force from the temperature sensor is pulled out to the non-output side of motor 3. The rotation detector 7 is provided on the non-output side of the motor 3 and outputs a rotation position signal together with the rotation number signal. A signal harness (not shown) that outputs a detection signal from the rotation detector 7 is pulled out to the non-output side of the motor 3!

[0030] The motor control circuit 8 and the power module unit 9 are housed in a position above the motor 3 inside the housing 1A.

[0031] Further, a field connector 8a, a rotation detector connector 8b, and a temperature sensor connector 8c are provided at the upper end of the motor control circuit 8. The field connector 8a electrically connects the energizing harness drawn from the brush and the motor control circuit 8. The rotation detector connector 8b electrically connects the signal noise from the rotation detector and the motor control circuit 8. The temperature sensor connector 8c electrically connects the signal noise from the temperature sensor and the motor control circuit 8.

A knock cover 19 is provided on the non-output side of the motor 3. The knock cover 19 is installed after the adjustment of the rotation detector 7 and the connection of the power harness and signal noise are completed. It is fixed to the housing 1A with screws etc. together with the material. By arranging the power harness 6a and signal harness on the non-output side and closing the connection work with the knock cover 19, a work space for connecting the harness can be secured, and signal noise connection is possible. The waterproof mechanism of the part can be eliminated.

[0033] It should be noted that the connectors 8a, 8b, 8c that connect the signal harness from the motor 3 are grouped into one connector that is connected to the motor control circuit 8 separately for each application. Connector space can also be reduced. In addition, each harness from the motor 3 can be directly soldered onto the motor control circuit 8 to further reduce space.

[0034] The control connector 8d for electrical connection between the control signal connector 16 and the motor control circuit 8 is connected to the output side of the motor 3 so as to connect the connector 16 and the motor control circuit 8 with a short harness as much as possible. Is arranged.

[0035] As described above, the first feature of the present embodiment is that a motor control circuit (inverter) including the motor control circuit 8 and the power module unit 9 is provided above the motor 3. There is. By virtue of the powerful configuration, it is possible to avoid external factors while the vehicle is running, such as the interference force of the road structure under the vehicle. Further, the positive side connector 14 and the negative side connector 15 forming the vehicle power input / output unit and the control signal connector 16 forming the vehicle signal input / output unit are arranged on the same plane on the output shaft 2a side of the motor 3. Has been. Therefore, since the power supply line and the signal line can be connected to the vehicle drive device 1 to the same directional force connectors 14, 15, 16 via the connector, the workability of the connection work can be improved. Further, since the connectors 14, 15, 16 are arranged on the same plane, the vehicle drive device 1 can be made a compact.

[0036] In addition, as a second feature, the back cover 19 provided on the non-output side of the motor 3 is connected to the airtight member after the adjustment of the rotation detector 7 and the connection of the power harness and the signal noise are completed. Both are fixed to the housing 1A with screws. By placing the power harness 6a and signal harness on the non-output side and closing the connection with the knock cover 19 after the connection work is completed, a large work space for harness connection can be secured, and signal noise can be secured. The waterproof mechanism of the connection part can be eliminated. Next, the configuration of the main part of the vehicle drive device according to the present embodiment will be described with reference to FIG.

FIG. 3 is a perspective view showing a main configuration of the vehicle drive device according to the embodiment of the present invention. The same reference numerals as those in FIG. 1 denote the same parts. FIG. 3 shows the motor superstructure with the motor control circuit 8 shown in FIG. 2 removed.

[0038] The power module section 9 of the inverter including a semiconductor switching element (MOS-FET or the like) includes a resin case 9c. The resin case 9c has an insulation function between the three phases of the output side nose bar 9a and between the positive and negative of the input side bus bar 9b. The semiconductor switching element is disposed in the resin case 9c, and is electrically connected to the output side bus bar 9a and the input side bus bar 9b with a conductive wire (not shown).

[0039] The intermediate bus bar 10a that forms part of the power harness is connected to the output-side bus bar 9a of the power module 9. The intermediate bus bar 10a is connected to the crimp terminal 6b via the three-phase alternating current sensor 11. The bus bar 10a is directly connected to the three-phase crimp terminal 6b from the motor. However, a new resin terminal block or bus bar may be provided between the bus bar 10a and the crimp terminal 6b.

[0040] In order to input DC power from the vehicle side to the power module 9, the positive bus bar 10b and the negative bus bar 10b 'are connected to the input bus bar 9b.

Next, the external configuration of the vehicle drive device according to the present embodiment will be described with reference to FIG.

FIG. 4 is a perspective view showing the appearance of the vehicle drive device according to the embodiment of the present invention. The same reference numerals as those in FIG. 1 denote the same parts. Fig. 4 shows the state seen from the output shaft side of the motor.

The positive bus bar 10b is connected via a direct current sensor 12 and a relay bus bar 13 to a positive connector 14 that forms a vehicle power input / output unit arranged on the motor output side. Similarly to the positive connector 14, the negative bus bar 10b 'is connected to a negative connector 15 that forms a vehicle power input / output unit arranged on the output side of the motor 3. The control signal connector 16 forming the vehicle signal input / output unit is electrically connected to the connector 8d on the board. A pair of bus bars are arranged under the positive bus bar 10b and the negative bus bar 10b. And connected to the positive and negative electrodes of the smoothing capacitor 17.

[0043] After the connection of the upper cover 18, the power harness and the signal line, and the oneness are completed, the upper cover 18 and the airtight member are fixed together with screws or the like. When the connection work is completed, the cover is covered with a cover, so that a wide work space for harness connection can be secured and the waterproof mechanism for the signal noise connection part can be eliminated.

Next, the external configuration of the vehicle drive device according to the present embodiment will be described with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a perspective view showing the appearance of the vehicle drive apparatus according to the embodiment of the present invention. FIG. 6 is a side view showing an external configuration of the vehicle drive apparatus according to the embodiment of the present invention. The same reference numerals as those in FIG. 1 denote the same parts. FIG. 5 shows a state in which a mating counterpart of the output shaft, that is, a differential clutch that is a member to be mated with the output shaft is coupled to the output shaft side of the motor.

In the example shown in FIG. 5, the vehicle drive device 1 in which the motor and the inverter are integrated and the differential unit 20 are fastened to each other with bolts (not shown).

[0046] The DC positive side electric wire 21a forming the vehicle power supply line is connected to the positive side connector 14 forming the vehicle power input / output unit. Further, the DC negative side electric wire 21b forming the vehicle power source line is connected to the negative side connector 15 forming the vehicle power source input / output unit. The vehicle signal line 22 is connected to a control signal connector 16 that forms a vehicle signal input / output unit.

[0047] The vehicle power supply lines 21a, 21b and the vehicle signal line 22 are fixed to a fixing hole 24 provided in the upper part of the housing of the differential unit 20 by fixing clips 23a, 23b, 23c. The positive side connector 14, the negative side connector 15 forming the vehicle power input / output unit and the control signal connector 16 forming the vehicle signal input / output unit are located above the differential unit 20, as shown in FIG. Therefore, it is possible to avoid damage caused by stepping stones and curbs.

[0048] In addition, since the vehicle power supply lines 21a and 21b and the vehicle signal line 22 are provided with a fixed position above the differential unit 20, there is no need to newly provide a stay for fixing the signal line. Is. Further, even when the vehicle shakes greatly on a rough road or the like, the differential unit 20 and the vehicle drive device 1 in which the motor and the inverter are integrated are bolted. Therefore, the positive connectors that form the vehicle power input / output unit by providing the fixed points of the vehicle power supply lines 21a, 21b and the vehicle signal line 22 at the top of the differential unit 20. 14, the negative connector 15 and the control signal connector 16 constituting the vehicle signal input / output section, the vehicle power supply lines 21a, 21b, and the vehicle signal line 22 are also moved in the same manner, and the amount of mutual swinging is reduced. Thus, disconnection of the vehicle power supply lines 21a and 21b and the vehicle signal line 22 and disconnection from the connectors 14, 15 and 16 are less likely to occur. Therefore, it is necessary for the positive connector 14, the negative connector 15, and the control signal connector 16 that form the vehicle signal input / output section of the vehicle drive device 1 in which the motor and the inverter are integrated. The strength against swinging and the strength against swinging of the vehicle power supply lines 21a and 21b and the vehicle signal line 22 can be reduced.

[0049] In the above example, the stop point is provided directly on the differential unit 20, but the housing of the differential unit 20 is connected to the positive connector 14, the negative connector 14 forming the vehicle power input / output unit. The bending load applied to the vehicle power lines 21a and 21b and the vehicle signal line 22 can be reduced by building up to the same position as the side connector 15 and the control signal connector 16 constituting the vehicle signal input / output unit. . Further, if attention is paid to the purpose of reducing the bending load applied to the vehicle power supply lines 21a and 21b and the vehicle signal line 22, a simple base for fixing the harness may be provided.

[0050] A third feature of the present embodiment is that a positive side connector 14, a negative side connector 15 forming a vehicle power input / output unit, and a control signal connector 16 forming a vehicle signal input / output unit are shown in FIG. As described above, since the differential unit 20 is disposed in the projection plane when projected upward, it is damaged by an external factor during traveling of the vehicle, for example, a road structure from the lower part of the vehicle.

[0051] Further, the fourth feature of the present embodiment is that, as shown in FIG. 5, the vehicle power supply lines 21a, 21b and the vehicle signal line 22 are provided with stopping points above the differential unit 20. Since it is attached and held by the fixing tips 23a, 23b, 23c, there is no need to install a new member for fixing the harness such as a stylus. It becomes difficult to occur.

[0052] Further, a fifth feature of the present embodiment is that a motor constituting an inverter that is a control circuit. As shown in Fig. 2, the control circuit (MC) 8 and the power module part (PM) 9 have a two-story structure in which the motor control circuit (MC) 8 is stacked on the power module part (PM) 9. Yes. As a result, as shown in FIG. 4, the positive side connector 14 and negative side connector 15 forming the vehicle power input / output unit and the control signal connector 16 forming the vehicle signal input / output unit are arranged vertically. Yes. As shown in FIG. 5, among the vehicle power supply lines 21a, 21b and the vehicle signal lines 22 connected to the connectors 14, 15, 16, the vehicle power supply lines 21a, 21b are maintained substantially in a straight line, The vehicle signal line 22 is fixed to a fixing hole 24 provided in the upper part of the housing of the differential unit 20 by a fixing clip 23c so that a part thereof is bent. The vehicle power supply lines 21a and 21b use thick copper wires because a large current flows, and are used for bending. On the other hand, since the vehicle signal line 22 only allows a control signal to flow, a thin conductor can be used and bending is easy. Therefore, the vehicle power supply line 21a, 21b and the vehicle signal line 22 connected to the connector are constructed by adopting a two-story structure in which the motor control circuit (MC) 8 is laminated on the power module part (PM) 9. The differential unit 20 can be easily fixed to the upper part of the housing.

[0053] Here, a modified example of the present invention will be described with reference to FIG.

FIG. 7 is a side view showing an external configuration of a vehicle drive apparatus according to a modification of the present invention. The same reference numerals as those in FIG. 1 indicate the same parts.

As in the example of FIG. 5, the vehicle drive device 1 in which the motor and the inverter are integrated and the differential unit 20 are fastened to each other with bolts (not shown).

[0055] The positive side connector 14, the negative side connector 15 forming the vehicle power input / output unit, and the control signal connector 16 forming the vehicle signal input / output unit are as shown in the figure when the motor 3 is projected upward. Since it is arranged in the projection plane, it is damaged by an external factor during traveling of the vehicle, such as a road structure from the lower part of the vehicle.

Note that the DC positive side electric wire 21a forming the vehicle power supply line shown in FIG. 5 is connected to the positive side connector 14 forming the vehicle power supply input / output unit. Further, the DC negative side electric wire 21b forming the vehicle power source line is connected to the negative side connector 15 forming the vehicle power input / output unit. The vehicle signal line 22 is connected to a control signal connector 16 that forms a vehicle signal input / output unit. . The vehicle power supply lines 21a and 21b and the vehicle signal line 22 are respectively fixed to the upper part of the housing of the motor 3 or the upper part of the housing of the differential unit 20 by fixing clips.

[0057] As described above, according to the present embodiment, in a vehicle drive device in which a motor and an inverter are integrated, a vehicle power input / output unit, a vehicle signal input / output unit, a vehicle power supply line, and a vehicle signal line are connected to a motor. It is possible to simplify the members used for fixing and protection and to reduce the volume by arranging them upward on the output shaft side.

[0058] In addition, the power harness and the signal harness between the motor and the inverter are arranged on the side opposite to the motor output shaft side, and are housed in the casing of the vehicle drive device, so that the signal signal and the oneness are fixed and protected. It is possible to simplify the member to be formed and reduce the volume. Therefore, it is possible to reduce the vehicle weight and reduce the cost of the vehicle drive device.

Claims

The scope of the claims

[1] A vehicle drive device having a motor (3) and a control unit (8, 9) for controlling the motor, wherein the motor and the control unit are integrated,

The control unit (8, 9) is disposed at the top of the motor,

A vehicle power input / output unit (14, 15) for inputting electric power for driving the motor to the control unit, and a vehicle signal input / output unit (16) for inputting a control signal from the vehicle side to the control unit, A vehicle drive device that is pulled out in the same direction as the output shaft of the motor.

[2] In the vehicle drive device according to claim 1,

The vehicle power input / output unit (14, 15) and the vehicle signal input / output unit (16) are within the projection plane when the member to be fitted (20) to be fitted to the output shaft of the motor is projected upward. A vehicle drive device characterized by being arranged.

[3] The vehicle drive device according to claim 1,

The vehicle power input / output unit (14, 15) and the vehicle signal input / output unit (16) are arranged in a projection plane when the motor is projected upward.

[4] The vehicle drive device according to claim 1,

The vehicle power supply line connected to the vehicle power supply input / output unit and the vehicle signal line (21a, 21b, 22) connected to the vehicle signal input / output unit are parts of a member to be fitted to be fitted to the output shaft of the motor. A vehicle drive device characterized in that an upper stop point is fixed to the member to be fitted.

[5] The vehicle drive device according to claim 1,

A vehicle power supply line connected to the vehicle power input / output unit and a vehicle signal line (21a, 21b, 22) connected to the vehicle signal input / output unit are fixed to the motor at a stop point on the upper side of the motor. The vehicle drive device characterized by the above-mentioned.

[6] The vehicle drive device according to claim 1,

The vehicle drive apparatus according to claim 1, wherein a power harness (10a, 10b) between the motor and the control unit is disposed on a side opposite to the output shaft of the motor.

[7] The vehicle drive device according to claim 6,

The power harness (10a, 10b) is housed in the motor housing (1A), A vehicle drive device comprising a back cover (19) for covering the housing in which the power harness is housed.

[8] The vehicle drive device according to claim 1,

The controller is

A power module unit (9) that converts a DC power into an AC power with a plurality of semiconductor switching element forces, and outputs a signal for switching the semiconductor switching element of the power module unit in response to an external command. A motor control circuit (8) that controls the output torque of

The vehicle drive device characterized in that the motor control circuit (8) is laminated on the upper part of the power module section (9).

[9] The vehicle drive device according to claim 8,

The vehicle signal input / output unit (14, 15) and the vehicle power supply input / output unit (16) are drawn out in the same direction and arranged in the vertical direction. apparatus.