CN-112104300-B - Motor control device

Abstract

The invention discloses a motor control device. The motor control device comprises a first electronic control unit, a connector, a second electronic control unit and a connecting element, wherein the first electronic control unit comprises a first substrate with a first length and is used for controlling a motor, the connector is combined with one end part of the first substrate in the length direction and is used for transmitting power and signals to the first electronic control unit, the second electronic control unit comprises a second substrate with a second length and is used for controlling the motor, one surface of the second substrate faces one surface of the first substrate, the second length is shorter than the first length, and the connecting element is connected with the first electronic control unit and the second electronic control unit in a circuit and is used for transmitting the power and signals to the second electronic control unit.

Inventors

• JIN ZHIHUAN
• LI SHUMIN

Assignees

• 株式会社万都

Dates

Publication Date

20260512

Application Date

20200615

Priority Date

20190617

Claims (14)

1. 1. A motor control apparatus comprising: a first electronic control unit including a first substrate having a first length along an axial direction of the motor, performing control of the motor; A connector coupled to one end of the first substrate in a longitudinal direction to transmit power and signals to the first electronic control unit; A second electronic control unit including a second substrate having a second length along an axial direction of the motor, a surface of the second substrate facing a surface of the first substrate, the second length being shorter than the first length, and A connecting element, which is connected with the first electronic control unit and the second electronic control unit in a circuit way, transmits the power supply and the signals to the second electronic control unit, A part of the connector connected to the first substrate is formed on the first substrate so as to face one end portion in the longitudinal direction of the second substrate, and is disposed in a space formed by a difference between a first length of the first substrate and a second length of the second substrate, the space being free from interference by the one end portion in the longitudinal direction of the second substrate.
2. 2. The motor control device according to claim 1, wherein, The second length is formed by a length in which one surface of the second substrate is overlapped with one surface of the first substrate in a longitudinal direction without interference of the connector.
3. 3. The motor control device according to claim 1, wherein, The connecting element is composed of a busbar, one end of the busbar is connected to the first substrate, and the other end of the busbar is connected to the second substrate.
4. 4. The motor control device according to claim 1, wherein, The first electronic control unit is disposed along an axis extending in a longitudinal direction of the motor on an opposite side of an output shaft of the motor.
5. 5. The motor control device according to claim 4, characterized by further comprising: and a heat radiating member disposed along an axis extending in a longitudinal direction of the motor and radiating heat generated in the first electronic control unit and the second electronic control unit.
6. 6. The motor control device according to claim 5, wherein, The heat dissipation member includes a first heat dissipation member that is formed in a plate shape and is disposed between the first substrate and the second substrate.
7. 7. The motor control device according to claim 6, wherein, The first electronic control unit and the second electronic control unit respectively comprise a first power circuit and a second power circuit which are arranged on the first substrate and the second substrate; The first heat dissipation part comprises a first protruding part and a second protruding part which are formed by protruding, so that the first power circuit and the second power circuit are respectively contacted on one side surface and the other side surface which are contacted with the first substrate and the second substrate.
8. 8. The motor control device according to claim 7, wherein, The first protruding portion and the second protruding portion are formed in a shape at least a part of which is non-overlapped when viewed in a vertical direction.
9. 9. The motor control device according to claim 6, wherein, The first heat dissipation part includes a recess formed to recess from one side end to the other side to prevent interference with the connection element.
10. 10. The motor control device according to claim 6, wherein, The heat dissipation member further includes a second heat dissipation member that contacts an end portion of the motor on the opposite side of the output shaft and is connected to the first heat dissipation member.
11. 11. The motor control device according to claim 10, wherein, The second heat dissipation member is formed in a ring shape.
12. 12. The motor control device according to claim 4, characterized by further comprising: And the motor position sensing unit is contacted with the end part of the opposite side of the output shaft of the motor and provides motor position sensing information for the first electronic control unit and the second electronic control unit.
13. 13. The motor control device according to claim 12, wherein, The motor position sensing unit includes: a connection substrate which is in contact with an end portion of the motor on the opposite side of the output shaft; a first terminal disposed on the connection substrate to be connected to the first electronic control unit; A second terminal arranged on the connection substrate for connection with the second electronic control unit, and And a motor position sensor coupled to the connection substrate.
14. 14. The motor control device according to claim 13, wherein, The first terminal and the second terminal have IDs that are recognized in a hard disk mode, respectively.

Description

Motor control device Technical Field The present invention relates to a motor control device, and more particularly, to a motor control device that is disposed on a motor side to control driving of a motor. Background An electronic control unit (Electronic Control Unit, ECU) for controlling the rotational speed or torque of a motor is disposed in an electric power steering (Electric Power Steering, EPS) system or the like of a vehicle separately from a main electronic control unit of the vehicle. Recently, a packaging technology in which a motor and an electronic control unit are integrated is being adopted. In addition, in the trend of increasing and strengthening Fail/Safety related Safety regulations (ISO 26262) of electronic and electric systems of vehicles, redundancy (Redundancy) design is being used as a countermeasure. In order to apply redundancy in the control of the motor, redundant electronic control units are required, which means that 2 electronic control units need to be arranged within the package. In the case of the above, ensuring space efficiency and downsizing of the package in the package of the motor and the electronic control unit are attracting attention as important technical problems. On the other hand, in the case where there are 2 electronic control units for controlling the motor, it is necessary to transmit power and control signals to the 2 electronic control units, respectively. However, the wiring harness of the existing vehicle is generally constituted by a form that can be connected to only one electronic control unit. Accordingly, there is also a demand for a technique that can transmit power and control signals to 2 electronic control units simultaneously without excessively changing the wiring harness of the existing vehicle. (Prior art literature) (Patent literature) Issued patent 10-0737135, "motor drive electronic control unit for vehicle", 2007.07.02 announcements Disclosure of Invention (Problems to be solved) The present invention is directed to solving the problems of the prior art, and an object of the present invention is to provide a motor control device capable of transmitting power and control signals to 2 electronic control units through one connector. In addition, another object of the present invention is to provide a motor control device that can minimize the size of a package by improving space efficiency. (Means for solving the problems) According to an aspect of the present invention, there is provided a motor control apparatus including a first electronic control unit including a first substrate having a first length to perform control of a motor, a connector coupled to one end portion of the first substrate in a length direction to transmit power and signals to the first electronic control unit, a second electronic control unit including a second substrate having a second length, which faces one surface of the second substrate with one surface of the first substrate, to perform control of the motor, the second length being shorter than the first length, and a connection element electrically connecting the first electronic control unit and the second electronic control unit to transmit the power and signals to the second electronic control unit. In this case, the second length may be formed by a length in which one surface of the second substrate is overlapped with one surface of the first substrate in the longitudinal direction without interference of the connector. In addition, the connection element may be formed of a busbar, one end of which is connected to the first substrate and the other end of which is connected to the second substrate. In addition, the first electronic control unit may be disposed along an axis extending in a longitudinal direction of the motor on an opposite side of an output shaft of the motor. Further, the motor may further include a heat radiating member disposed along an axis extending in a longitudinal direction of the motor, and radiating heat generated in the first electronic control unit and the second electronic control unit. In addition, the heat dissipation member may include a first heat dissipation member formed in a plate shape and disposed between the first substrate and the second substrate. In addition, the first electronic control unit and the second electronic control unit respectively comprise a first power circuit and a second power circuit which are arranged on the first substrate and the second substrate, and the first heat dissipation part can comprise a first protruding part and a second protruding part which are formed by protruding so as to respectively contact the first power circuit and the second power circuit on one side surface and the other side surface which are contacted with the first substrate and the second substrate. In addition, the first projection and the second projection may be formed in a shape at least a part of which is non-overlapped when viewed in a vertical direction. In add