Power control device and vehicle

Abstract

The invention provides a power control device and a vehicle, and belongs to the technical field of automobiles. The power control device comprises a motor driving module and a regulation and control module. The energy supply end of the motor driving module is used for being connected with a high-voltage power supply module. The driving end of the motor driving module is used for being connected with an air compression motor and an electric driving motor. The signal end of the regulation and control module is connected with the control end of the motor driving module and used for sending a regulation and control signal to the motor driving module. And the motor driving module is used for driving an air compression motor and an electric driving motor to operate according to the regulation and control signal. The energy supply end of the regulation and control module is connected with a low-voltage power supply module. The air compressor motor and the electric drive motor are driven to work through the system, the number of devices needed for operation of a traditional air compressor system and a traditional electric drive system can be reduced, the occupied space of the whole vehicle system is saved, and the size of the whole vehicle system is reduced.

Description

Technical Field

[0001] The present application belongs to the field of automobile technology, and in particular relates to a power control device and a vehicle. Background Art

[0002] In the vehicle system, the air compressor system provides compressed air for the car. The vehicle braking system, door opening and closing system, air conditioning system and other auxiliary equipment require the assistance of compressed air. The electric drive system, also known as the power electronic unit (PEU), is the core power system of the car. The electric drive system can convert electrical energy into mechanical energy to drive the vehicle to achieve driving states such as acceleration, deceleration and cruising.

[0003] In traditional technology, the air compressor system and the electric drive system are two independently operated systems. The air compressor system has a set of multiple devices required for its own operation, and the electric drive system also has a set of multiple devices required for its own operation. In addition, the air compressor system and the electric drive system occupy a lot of space, making the overall system volume larger. Summary of the invention

[0004] The purpose of the present application is to provide a power control device and a vehicle, aiming to solve the problem of large overall system volume when a traditional air compressor system and an electric drive system operate independently.

[0005] The present application provides a power control device, comprising:

[0006] A motor drive module, wherein the energy supply end of the motor drive module is used to be connected to the high-voltage power supply module, the driving end of the motor drive module is used to be connected to the air compressor motor and the electric drive motor, the motor drive module is used to drive the air compressor motor and the electric drive motor to operate according to the control signal, and the high-voltage power supply module is used to provide the electric energy required by the motor drive module;

[0007] A control module, wherein the signal end of the control module is connected to the control end of the motor drive module and is used to send the control signal to the motor drive module, and the power supply end of the control module is used to connect to a low-voltage power supply module, and the low-voltage power supply module is used to provide the electrical energy required by the control module.

[0008] The present application provides a vehicle, comprising the power control device described in any one of the above embodiments.

[0009] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0010] When the air compressor motor and the electric drive motor are running, the high-voltage power supply module and the low-voltage power supply module can be shared, which reduces the use of the high-voltage wiring harness, the low-voltage wiring harness and the connector of the whole vehicle, saves the occupied space and reduces the cost. On the basis of sharing the high-voltage power supply module and the low-voltage power supply module to provide electric energy, the air compressor motor and the electric drive motor can be driven to operate in different working states through the control module and the motor drive module. When the air compressor motor and the electric drive motor are running, the control module and the motor drive module can be shared. Through the motor drive module and the control module, the electric energy and control signals required for the operation of the air compressor motor and the electric drive motor are fully integrated. Thus, by driving the air compressor motor and the electric drive motor to work through the power control device provided by the present application, the number of equipment required for the operation of the traditional air compressor system and the traditional electric drive system can be reduced, the occupied space is saved, and the overall system volume is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the power control device in some embodiments provided in this application.

[0012] Figure 2 This is a schematic diagram of the connection structure of the high-voltage filter module in some embodiments provided in this application.

[0013] Figure 3 This is a schematic diagram of the connection structure of the voltage stabilizing module in some embodiments provided in this application.

[0014] Figure 4 This is a schematic diagram of the structure of the motor drive module in some embodiments provided in this application.

[0015] Figure 5 This is a schematic diagram of the circuit structure of the high-voltage filter module in some embodiments provided in this application.

[0016] Figure 6 This is a schematic diagram of the circuit structure of the first phase drive circuit in some embodiments provided in the present application.

[0017] Figure 7 Schematic diagram of the circuit structure of the first phase drive circuit, the second phase drive circuit, and the third phase drive circuit in some embodiments provided in the present application.

[0018] Figure 8 This is a schematic diagram of the circuit structure of the first phase drive circuit in some embodiments provided in the present application.

[0019] Fig. 9 Schematic diagram of the circuit structure of the first phase drive circuit, the second phase drive circuit, and the third phase drive circuit in some embodiments provided in the present application.

[0020] Fig.10 This is a schematic diagram of the connection structure of the temperature-sensitive module provided in this application.

[0021] Fig.11 A schematic diagram of the structure of each submodule of the control module provided in this application.

[0022] Fig.12 This is a schematic diagram of the structure of the power control device provided in this application. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] See also Figure 1 , the present application provides a power control device 100. The power control device 100 includes a motor drive module 10 and a control module 50. The power supply end of the motor drive module 10 is used to connect to the high-voltage power supply module 20. The driving end of the motor drive module 10 is used to connect to the air compressor motor 30 and the electric drive motor 40 respectively. The high-voltage power supply module 20 is used to provide the electric energy required by the motor drive module 10.

[0028] The signal end of the control module 50 is connected to the control end of the motor drive module 10, and is used to send a control signal to the motor drive module 10. The motor drive module 10 is used to drive the air compressor motor 30 and the electric drive motor 40 to operate according to the control signal. The energy supply end of the control module 50 is used to be connected to the low-voltage power supply module 60. The low-voltage power supply module 60 is used to provide the power required by the control module 50.

[0029] The power supply end of the motor drive module 10 is connected to the high-voltage power supply module 20, and can convert the direct current provided by the high-voltage power supply module 20 into the alternating current required by the air compressor motor 30 and the electric drive motor 40. The high-voltage power supply module 20 can be a module that can provide electrical energy, such as a high-voltage battery. After the high-voltage power supply module 20 is converted by the motor drive module 10, it can jointly provide the required alternating current for the air compressor motor 30 and the electric drive motor 40.

[0030] The control signal output by the signal end of the control module 50 may be a pulse width modulation signal or a space vector pulse width modulation signal, etc. When the control module 50 controls the motor drive module 10 to be turned on, the current provided by the high-voltage power supply module 20 passes through the motor drive module 10 to drive the air compressor motor 30 and the electric drive motor 40 to operate. When the control module 50 controls the motor drive module 10 to be turned off, the air compressor motor 30 and the electric drive motor 40 do not operate. Through the control signal output by the signal end of the control module 50, the change of the current flowing through the motor drive module 10 can be regulated, so that the changed current enters the air compressor motor 30 and the electric drive motor 40, so as to drive the air compressor motor 30 and the electric drive motor 40 to rotate and operate in different working states, such as the starting state, the forward state, the reverse state, the stop state, etc.

[0031] The high-voltage power supply module 20 provides a high voltage for the motor drive module 10, and the low-voltage power supply module 60 provides a low voltage for the control module 50. Through the high-voltage power supply module 20 and the low-voltage power supply module 60, the required electric energy can be provided to the air compressor motor 30 and the electric drive motor 40 together. Furthermore, when the air compressor motor 30 and the electric drive motor 40 are in operation, the high-voltage power supply module 20 and the low-voltage power supply module 60 can be shared, which reduces the use of high-voltage wiring harnesses, low-voltage wiring harnesses and connectors of the whole vehicle, saves space and reduces costs. On the basis of sharing the high-voltage power supply module 20 and the low-voltage power supply module 60 to provide electric energy, the air compressor motor 30 and the electric drive motor 40 can be driven to operate in different working states through the control module 50 and the motor drive module 10. When the air compressor motor 30 and the electric drive motor 40 are in operation, the control module 50 and the motor drive module 10 can be shared. Through the motor drive module 10 and the control module 50, the electric energy and control signals required for the operation of the air compressor motor 30 and the electric drive motor 40 are fully integrated. Therefore, by driving the air compressor motor 30 and the electric drive motor 40 to work through the power control device 100 provided in the present application, the number of equipment required for the operation of the traditional air compressor system and the traditional electric drive system can be reduced, the occupied space is saved, and the overall system volume is reduced.

[0032] In one embodiment, the control module 50 can be a printed circuit board assembly (PCBA). Through the control module 50, the data sampling function, driving function, communication function, auxiliary power supply function and protection function of the motor drive module 10 can be realized, so as to jointly drive the air compressor motor 30 and the electric drive motor 40. Furthermore, through the control module 50, the number of control devices such as data sampling equipment, driving equipment, communication equipment, auxiliary power supply equipment and protection equipment required for the operation of the traditional air compressor system and the traditional electric drive system is reduced, the occupied space, volume and weight of the overall system are reduced, and the cost of the overall system is reduced.

[0033] In one embodiment, the voltage range of the low voltage power supply module 60 is 9V to 16V. The voltage range of the high voltage power supply module 20 is 200V to 800V.

[0034] See also Figure 2 In one embodiment, the power control device 100 further includes a high-voltage filter module 70. The input end of the high-voltage filter module 70 is used to connect to the high-voltage power supply module 20. The output end of the high-voltage filter module 70 is connected to the power supply end of the motor drive module 10. The high-voltage filter module 70 is used to filter out electromagnetic interference signals generated by the high-voltage power supply module 20 and the motor drive module 10.

[0035] The high-voltage filter module 70 is connected between the high-voltage power supply module 20 and the motor drive module 10, and can filter out the electromagnetic interference signal generated by the high-voltage power supply module 20, ensure the purity of the power supply, and prevent the interference signal from being transmitted to other devices through the power line. The high-voltage filter module 70 is connected between the high-voltage power supply module 20 and the motor drive module 10, and can also filter out the electromagnetic interference signal generated by the motor drive module 10, which can effectively reduce the damage caused by the interference signal to the air compressor motor 30 and the electric drive motor 40, and improve the reliability and stability of the air compressor motor 30 and the electric drive motor 40. The high-voltage power supply module 20 is connected to the high-voltage filter module 70, and the high-voltage filter module 70 is connected to the energy supply end of the motor drive module 10, forming a link, and jointly driving the air compressor motor 30 and the electric drive motor 40 to operate, reducing the number of equipment required for the operation of the traditional air compressor system and the traditional electric drive system, saving the occupied space, and reducing the overall system volume. Furthermore, through the high-voltage filter module 70, the electromagnetic interference signal of the system can be reduced, ensuring the stable operation of the air compressor motor 30 and the electric drive motor 40.

[0036] See also Figure 5 In one embodiment, the high-voltage filter module 70 includes a first capacitor 710, a second capacitor 720, a third capacitor 730, a fourth capacitor 740, a first inductor 750, and a second inductor 760. One end of the first capacitor 710 is connected to the positive terminal of the high-voltage power supply module 20, and the other end of the first capacitor 710 is grounded. One end of the second capacitor 720 is connected to the negative terminal of the high-voltage power supply module 20, and the other end of the second capacitor 720 is grounded. One end of the third capacitor 730 is connected to the first energy supply terminal of the motor drive module 10. The other end of the third capacitor 730 is grounded. One end of the fourth capacitor 740 is connected to the second energy supply terminal of the motor drive module 10. The other end of the fourth capacitor 740 is grounded.

[0037] One end of the first inductor 750 is connected to one end of the first capacitor 710, and is connected to the positive terminal of the high-voltage power supply module 20. The other end of the first inductor 750 is connected to one end of the third capacitor 730, and is connected to the first energy supply terminal of the motor drive module 10. One end of the second inductor 760 is connected to one end of the second capacitor 720, and is connected to the negative terminal of the high-voltage power supply module 20. The other end of the second inductor 760 is connected to one end of the fourth capacitor 740, and is connected to the second energy supply terminal of the motor drive module 10.

[0038] The first capacitor 710, the first inductor 750 and the third capacitor 730 form a filter structure on the positive terminal side of the high-voltage power supply module 20. The second capacitor 720, the second inductor 760 and the fourth capacitor 740 form a filter structure on the negative terminal side of the high-voltage power supply module 20. The high-voltage filter module 70 forms a circuit structure that is symmetrical up and down, which helps to reduce the impedance imbalance in the circuit, helps to improve the vibration resistance of the filter, can more comprehensively eliminate electromagnetic interference, and ensure the signal purity of the power supply end of the motor drive module 10. Therefore, the high-voltage filter symmetrical structure formed by the first capacitor 710, the second capacitor 720, the third capacitor 730, the fourth capacitor 740, the first inductor 750 and the second inductor 760 can ensure the stable operation of the air compressor motor 30 and the electric drive motor 40 with a small amount of equipment on the basis of reducing the electromagnetic interference signal of the system.

[0039] In one embodiment, the power control device 100 further includes a voltage stabilizing module 80, such as Figure 4 The input end of the voltage stabilizing module 80 is connected to the output end of the high-voltage filter module 70. The output end of the voltage stabilizing module 80 is connected to the power supply end of the motor drive module 10. The voltage stabilizing module 80 is used to stabilize the voltage of the power supply end of the motor drive module 10.

[0040] The voltage stabilizing module 80 is connected between the high-voltage filter module 70 and the motor drive module 10, which can reduce voltage ripple and stabilize the voltage of the motor drive module 10. When the motor drive module 10 drives the air compressor motor 30 and the electric drive motor 40 to run, DC voltage support is provided. The high-voltage power supply module 20 is connected to the high-voltage filter module 70, the high-voltage filter module 70 is connected to the voltage stabilizing module 80, and the voltage stabilizing module 80 is connected to the energy supply end of the motor drive module 10, forming a link, and jointly driving the air compressor motor 30 and the electric drive motor 40 to run. Thus, through the power control device 100 provided by the present application, when the air compressor motor 30 and the electric drive motor 40 are running, the high-voltage power supply module 20, the high-voltage filter module 70, the voltage stabilizing module 80, the motor drive module 10, the control module 50 and the low-voltage power supply module 60 are shared, which reduces the number of equipment required for the operation of the traditional air compressor system and the traditional electric drive system, saves the occupied space, and reduces the overall system volume.

[0041] In one embodiment, the voltage stabilizing module 80 includes at least one bus capacitor.

[0042] In one embodiment, the motor drive module 10 includes at least one phase drive circuit. The energy supply end of the phase drive circuit is used to connect to the high-voltage power supply module 20. The drive end of the phase drive circuit is used to connect to the air compressor motor 30 and the electric drive motor 40. The signal end of the control module 50 is connected to the control end of the phase drive circuit, which is used to send a control signal to the phase drive circuit, and the phase drive circuit is used to drive the air compressor motor 30 and the electric drive motor 40 to operate according to the control signal. The motor drive module 10 may include one phase drive circuit or two phase drive circuits or three phase drive circuits, etc. One phase drive circuit corresponds to a single-phase control mode. Two phase drive circuits correspond to a two-phase control mode. Three phase drive circuits correspond to a three-phase control mode. The phase drive circuit includes multiple transistors.

[0043] In one embodiment, the motor driving module 10 includes a first phase driving circuit 110, a second phase driving circuit 120 and a third phase driving circuit 130. Figure 4 As shown. The energy supply end of the first phase drive circuit 110 is used to connect to the high voltage power supply module 20. The driving end of the first phase drive circuit 110 is used to connect to the air compressor motor 30 and the electric drive motor 40 respectively. The energy supply end of the second phase drive circuit 120 is used to connect to the high voltage power supply module 20. The driving end of the second phase drive circuit 120 is used to connect to the air compressor motor 30 and the electric drive motor 40 respectively.

[0044] The energy supply end of the third-phase drive circuit 130 is used to connect to the high-voltage power supply module 20. The drive end of the third-phase drive circuit 130 is used to connect to the air compressor motor 30 and the electric drive motor 40 respectively. The signal end of the control module 50 is respectively connected to the control end of the first-phase drive circuit 110, the control end of the second-phase drive circuit 120, and the control end of the third-phase drive circuit 130. The control module 50 is used to control the on-off state of the first-phase drive circuit 110, the on-off state of the second-phase drive circuit 120, and the on-off state of the third-phase drive circuit 130.

[0045] The energy supply end of the first phase drive circuit 110, the energy supply end of the second phase drive circuit 120 and the energy supply end of the third phase drive circuit 130 are connected to the high voltage power supply module 20. The high voltage power supply module 20 provides the required direct current for the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130. The signal end of the control module 50 outputs different control signals to control the on-off state of each transistor in the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130, so that the control signals of the air compressor motor 30 and the electric drive motor 40 are fully integrated. Furthermore, on the basis of the power supply of the high voltage power supply module 20, the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130, according to the control signal output by the signal end of the control module 50, jointly drive the air compressor motor 30 and the electric drive motor 40 to operate. When the air compressor motor 30 and the electric drive motor 40 are running, they share the high-voltage power supply module 20, the high-voltage filter module 70, the voltage stabilizing module 80, the first phase drive circuit 110, the second phase drive circuit 120, the third phase drive circuit 130, the control module 50 and the low-voltage power supply module 60, which reduces the number of equipment required for the operation of the traditional air compressor system and the traditional electric drive system, saves the occupied space, and reduces the overall system volume.

[0046] In one embodiment, the first phase drive circuit 110 includes an insulated gate bipolar transistor (IGBT) or / and a metal-oxide-semiconductor field-effect transistor (SIC MOSFET). The second phase drive circuit 120 includes an IGBT or / and a SIC MOSFET. The third phase drive circuit 130 includes an IGBT or / and a SIC MOSFET. The circuit structure of the second phase drive circuit 120 is the same as the circuit structure of the first phase drive circuit 110. The circuit structure of the third phase drive circuit 130 is the same as the circuit structure of the first phase drive circuit 110. The first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130 correspond to the U phase, V phase and W phase of the three-phase electricity respectively, and work together to drive the electric drive motor 40 and the air compressor motor 30 to operate.

[0047] IGBT is a composite fully controlled voltage-driven power semiconductor device composed of BJT and MOSFET. IGBT has the advantages of high input impedance, low driving power, low on-state voltage drop, large current carrying capacity, and good insulation performance between input and output. When a forward voltage is applied to the gate of the IGBT, the MOSFET is partially turned on, forming a channel and providing base current to the BJT, turning on the BJT. The IGBT is in the on state, and current can flow from the collector to the emitter. When a reverse voltage is applied to the gate or the gate voltage is removed, the MOSFET channel disappears, the base current of the BJT is cut off, the BJT is turned off, and the IGBT is also turned off.

[0048] SIC MOSFET has the advantages of high withstand voltage, low on-resistance, high switching speed and good high temperature resistance. The conductive channel between the source and the drain is controlled by applying voltage to the gate. When the gate voltage is higher than the threshold voltage, the conductive channel is formed and the SIC MOSFET device is turned on. When the gate voltage is lower than the threshold voltage, the conductive channel disappears and the SICMOSFET device is turned off.

[0049] See also Figure 6 In one embodiment, the first phase drive circuit 110 includes a first transistor 111, a second transistor 112, a third transistor 113 and a fourth transistor 114. The collector, gate and emitter of the first transistor 111 are respectively connected to the signal end of the control module 50. The collector of the first transistor 111 is connected to the positive terminal of the high-voltage power supply module 20. The collector, gate and emitter of the second transistor 112 are respectively connected to the signal end of the control module 50. The collector of the second transistor 112 is connected to the emitter of the first transistor 111. The collector of the second transistor 112 is connected to the electric drive motor 40. It can also be understood that the common end of the collector of the second transistor 112 and the emitter of the first transistor 111 is used as an output (i.e., the U-PEU end) to connect the first phase winding of the electric drive motor 40. The emitter of the second transistor 112 is connected to the negative terminal of the high-voltage power supply module 20.

[0050] The gate and source of the third transistor 113 are respectively connected to the signal end of the control module 50. The drain of the third transistor 113 is connected to the collector of the first transistor 111. The drain of the third transistor 113 is connected to the positive terminal of the high-voltage power supply module 20. The drain and gate of the fourth transistor 114 are respectively connected to the signal end of the control module 50. The drain of the fourth transistor 114 is connected to the source of the third transistor 113. The drain of the fourth transistor 114 is connected to the air compressor motor 30. It can also be understood that the common end of the drain of the fourth transistor 114 and the source of the third transistor 113 is used as an output (i.e., the U-HVAC end) to connect the first phase winding of the air compressor motor 30. The source of the fourth transistor 114 is connected to the emitter of the second transistor 112. The source of the fourth transistor 114 is connected to the negative terminal of the high-voltage power supply module 20.

[0051] The first transistor 111 is an IGBT. The second transistor 112 is an IGBT. The third transistor 113 is a SIC MOSFET. The fourth transistor 114 is a SIC MOSFET. The collector C1-PEU, the gate G1-PEU and the emitter E1-PEU of the first transistor 111 are respectively connected to the signal end of the control module 50. The gate G1-HVAC and the source S1-HVAC of the third transistor 113 are respectively connected to the signal end of the control module 50. The collector C1-PEU of the first transistor 111 and the drain D1-HVAC of the third transistor 113 share a connection port, which is connected to the signal end of the control module 50.

[0052] The collector C2-PEU, the gate G2-PEU and the emitter E2-PEU of the second transistor 112 are respectively connected to the signal terminal of the control module 50. The drain D2-HVAC and the gate G2-HVAC of the fourth transistor 114 are respectively connected to the signal terminal of the control module 50. The emitter E2-PEU of the second transistor 112 and the source S2-HVAC of the fourth transistor 114 share a connection port, which is connected to the signal terminal of the control module 50.

[0053] The first transistor 111 and the third transistor 113 form an upper bridge circuit structure of the first phase of the electric drive motor 40 and the air compressor motor 30. The second transistor 112 and the fourth transistor 114 form a lower bridge circuit structure of the first phase of the electric drive motor 40 and the air compressor motor 30. Through the connection structure of the first transistor 111, the second transistor 112, the third transistor 113 and the fourth transistor 114, the direct current provided by the high-voltage power supply module 20 can be converted into the alternating current required by the electric drive motor 40 and the air compressor motor 30, so as to drive the electric drive motor 40 and the air compressor motor 30 to operate.

[0054] When the control signal outputted by the signal end of the control module 50 controls the first transistor 111 and the third transistor 113 to be turned on, and the second transistor 112 and the fourth transistor 114 to be turned off, the high voltage power supply module 20 supplies power to the first phase winding of the electric drive motor 40 and the air compressor motor 30 through the first transistor 111 and the third transistor 113. The voltage of the first phase winding is positive. The voltage stability can be ensured by the voltage stabilizing module 80 at the moment of transistor switching.

[0055] When the control signal output from the signal end of the control module 50 controls the first transistor 111 and the third transistor 113 to turn off, and the second transistor 112 and the fourth transistor 114 to turn on, the first phase winding of the electric drive motor 40 and the air compressor motor 30 is connected to the negative pole of the high-voltage power supply module 20 through the second transistor 112 and the fourth transistor 114. The voltage of the first phase winding is negative. By controlling the on-time and off-time of the first transistor 111, the second transistor 112, the third transistor 113 and the fourth transistor 114 through the control signal output from the signal end of the control module 50, a regularly changing current can be generated in the three-phase winding of the air compressor motor 30 and the electric drive motor 40, thereby forming a rotating magnetic field to drive the air compressor motor 30 and the electric drive motor 40 to rotate.

[0056] See also Figure 7 In one embodiment, the second phase drive circuit 120 includes a fifth transistor 121, a sixth transistor 122, a seventh transistor 123 and an eighth transistor 124. The fifth transistor 121 is an IGBT. The sixth transistor 122 is an IGBT. The seventh transistor 123 is a SIC MOSFET. The eighth transistor 124 is a SIC MOSFET. The collector C3-PEU, the gate G3-PEU and the emitter E3-PEU of the fifth transistor 121 are respectively connected to the signal end of the control module 50. The gate G3-HVAC and the source S3-HVAC of the seventh transistor 123 are respectively connected to the signal end of the control module 50. The collector C3-PEU of the fifth transistor 121 and the drain D3-HVAC of the seventh transistor 123 share a connection port, which is connected to the signal end of the control module 50. The common end of the emitter E3-PEU of the fifth transistor 121 and the collector C4-PEU of the sixth transistor 122 is used as an output (i.e., the V-PEU end) to connect the second phase winding of the electric drive motor 40.

[0057] The collector C4-PEU, the gate G4-PEU and the emitter E4-PEU of the sixth transistor 122 are respectively connected to the signal end of the control module 50. The drain D4-HVAC and the gate G4-HVAC of the eighth transistor 124 are respectively connected to the signal end of the control module 50. The emitter E4-PEU of the sixth transistor 122 and the source S4-HVAC of the eighth transistor 124 share a connection port, which is connected to the signal end of the control module 50. The common end of the source S3-HVAC of the seventh transistor 123 and the drain D4-HVAC of the eighth transistor 124 is used as an output (i.e., the V-HVAC end) to connect the second phase winding of the air compressor motor 30.

[0058] The third phase drive circuit 130 includes a ninth transistor 131, a tenth transistor 132, an eleventh transistor 133, and a twelfth transistor 134. The ninth transistor 131 is an IGBT. The tenth transistor 132 is an IGBT. The eleventh transistor 133 is a SICMOSFET. The twelfth transistor 134 is a SICMOSFET. The collector C5-PEU, the gate G5-PEU, and the emitter E5-PEU of the ninth transistor 131 are respectively connected to the signal end of the control module 50. The gate G5-HVAC and the source S5-HVAC of the eleventh transistor 133 are respectively connected to the signal end of the control module 50. The collector C5-PEU of the ninth transistor 131 and the drain D5-HVAC of the eleventh transistor 133 share a connection port, which is connected to the signal end of the control module 50. The common end of the emitter E5-PEU of the ninth transistor 131 and the collector C6-PEU of the tenth transistor 132 is used as an output (i.e., the W-PEU end) to connect the third phase winding of the electric drive motor 40.

[0059] The collector C6-PEU, the gate G6-PEU and the emitter E6-PEU of the tenth transistor 132 are respectively connected to the signal end of the control module 50. The drain D6-HVAC and the gate G6-HVAC of the twelfth transistor 134 are respectively connected to the signal end of the control module 50. The source S6-HVAC of the twelfth transistor 134 and the emitter E6-PEU of the tenth transistor 132 share a connection port, which is connected to the signal end of the control module 50. The common end of the source S5-HVAC of the eleventh transistor 133 and the drain D6-HVAC of the twelfth transistor 134 is used as an output (i.e., the W-HVAC end) to connect the third phase winding of the air compressor motor 30.

[0060] By controlling the on-time and off-time of each transistor in the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130 through the control signal outputted from the signal end of the control module 50, a regularly changing current can be generated in the three-phase windings of the air compressor motor 30 and the electric drive motor 40, thereby forming a rotating magnetic field to drive the air compressor motor 30 and the electric drive motor 40 to rotate. Through the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130, the motor drive module 10 can be shared when the air compressor motor 30 and the electric drive motor 40 are running, and then the high-voltage power supply module 20, the high-voltage filter module 70, the control module 50 and the low-voltage power supply module 70 connected to the motor drive module 10 can be shared, thereby reducing the number of devices required for the operation of the traditional air compressor system and the traditional electric drive system, saving the occupied space of the whole vehicle system, and reducing the volume and cost of the whole vehicle system.

[0061] Through the control module 50, the on and off states of the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130 are continuously adjusted, so that current continuously flows through the three-phase windings of the air compressor motor 30 and the electric drive motor 40, and the direction and magnitude of the current continuously change, thereby generating a rotating magnetic field, so as to realize the speed regulation, forward and reverse rotation and other functions of the air compressor motor 30 and the electric drive motor 40.

[0062] See also Figure 8 In one embodiment, the gate G2-PEU and the emitter E2-PEU of the second transistor 112 are respectively connected to the signal end of the control module 50. The collector of the second transistor 112 is connected to the emitter E1-PEU of the first transistor 111. It can also be understood that the collector of the second transistor 112 and the emitter E1-PEU of the first transistor 111 share a connection port, which is connected to the signal end of the control module 50.

[0063] The collector of the second transistor 112 is connected to the electric drive motor 40. It can also be understood that the common end of the collector of the second transistor 112 and the emitter E1-PEU of the first transistor 111 is used as an output (i.e., the U-PEU end) to connect the first phase winding of the electric drive motor 40. The emitter E2-PEU of the second transistor 112 is connected to the negative terminal of the high-voltage power supply module 20.

[0064] The gate G2-HVAC and the source S2-HVAC of the fourth transistor 114 are respectively connected to the signal end of the control module 50. The drain of the fourth transistor 114 is connected to the source S1-HVAC of the third transistor 113. It can also be understood that the drain of the fourth transistor 114 and the source S1-HVAC of the third transistor 113 share a connection port, which is connected to the signal end of the control module 50.

[0065] The drain of the fourth transistor 114 is connected to the air compressor motor 30. It can also be understood that the common end of the drain of the fourth transistor 114 and the source S1-HVAC of the third transistor 113 is used as an output (i.e., the U-HVAC end) to connect the first phase winding of the air compressor motor 30. The source S2-HVAC of the fourth transistor 114 is connected to the negative terminal of the high-voltage power supply module 20.

[0066] By adjusting the collector of the second transistor 112, the drain of the fourth transistor 114, and the source of the fourth transistor 114 and the connection pins of the control module 50 respectively, it is possible to better adapt to the structural changes of the phase drive circuit, facilitate layout and wiring, and thereby improve the flexibility of circuit design and the compatibility of the chip, so that the motor drive module 10 is more integrated and saves space.

[0067] See also Fig. 9 In one embodiment, the gate G4-PEU and the emitter E4-PEU of the sixth transistor 122 are respectively connected to the signal end of the control module 50. The collector of the sixth transistor 122 and the emitter E3-PEU of the fifth transistor 121 share a connection port, which is connected to the signal end of the control module 50. The collector of the sixth transistor 122 is connected to the electric drive motor 40. It can also be understood that the common end of the collector of the sixth transistor 122 and the emitter E3-PEU of the fifth transistor 121 is used as an output (i.e., the V-PEU end) to connect the second phase winding of the electric drive motor 40. The emitter E4-PEU of the sixth transistor 122 is connected to the negative terminal of the high-voltage power supply module 20.

[0068] The gate G4-HVAC and the source S4-HVAC of the eighth transistor 124 are respectively connected to the signal end of the control module 50. The drain of the eighth transistor 124 and the source S3-HVAC of the seventh transistor 123 share a connection port, which is connected to the signal end of the control module 50. The drain of the eighth transistor 124 is connected to the air compressor motor 30. It can also be understood that the common end of the drain of the eighth transistor 124 and the source S3-HVAC of the seventh transistor 123 is used as an output (i.e., the V-HVAC end) to connect the second phase winding of the air compressor motor 30. The source S4-HVAC of the eighth transistor 124 is connected to the negative end of the high-voltage power supply module 20.

[0069] The gate G6-PEU and the emitter E6-PEU of the tenth transistor 132 are respectively connected to the signal end of the control module 50. The collector of the tenth transistor 132 and the emitter E5-PEU of the ninth transistor 131 share a connection port, which is connected to the signal end of the control module 50. The collector of the tenth transistor 132 is connected to the electric drive motor 40. It can also be understood that the common end of the collector of the tenth transistor 132 and the emitter E5-PEU of the ninth transistor 131 is used as an output (i.e., the W-PEU end) to connect the third phase winding of the electric drive motor 40. The emitter E6-PEU of the tenth transistor 132 is connected to the negative terminal of the high-voltage power supply module 20.

[0070] The gate G6-HVAC and the source S6-HVAC of the twelfth transistor 134 are respectively connected to the signal end of the control module 50. The drain of the twelfth transistor 134 and the source S5-HVAC of the eleventh transistor 133 share a connection port, which is connected to the signal end of the control module 50. The drain of the twelfth transistor 134 is connected to the air compressor motor 30. It can also be understood that the common end of the drain of the twelfth transistor 134 and the source S5-HVAC of the eleventh transistor 133 is used as an output (i.e., the W-HVAC end) to connect the third phase winding of the air compressor motor 30. The source S6-HVAC of the twelfth transistor 134 is connected to the negative terminal of the high-voltage power supply module 20.

[0071] By adjusting the collector of the second transistor 112, the drain of the fourth transistor 114, the source of the fourth transistor 114, the collector of the sixth transistor 122, the drain of the eighth transistor 124, the source of the eighth transistor 124, the collector of the tenth transistor 132, the drain of the twelfth transistor 134 and the source of the twelfth transistor 134 respectively with the connection pins of the control module 50, it is possible to better adapt to the structural changes of the phase drive circuit, facilitate layout and wiring, thereby improving the flexibility of circuit design and the compatibility of chips, making the motor drive module 10 more integrated and saving space.

[0072] See also Fig.10 In one embodiment, the motor driving module 10 further includes a temperature sensing module 140. The temperature sensing module 140 is disposed near the first phase driving circuit 110, the second phase driving circuit 120, and the third phase driving circuit 130. The temperature sensing module 140 is connected to a sampling end of the control module 50. The temperature sensing module 140 is used to sample temperature signals of the first phase driving circuit 110, the second phase driving circuit 120, and the third phase driving circuit 130, and transmit the temperature signals to the control module 50.

[0073] The temperature sensing module 140 is used as a temperature sampling element to perform temperature sampling on the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130. The temperature sensing module 140 is used to monitor the temperature of the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130 to prevent the circuit from being damaged due to overheating. Through the temperature sensing module 140, the temperature changes of the corresponding drive circuits when the air compressor motor 30 and the electric drive motor 40 are running can be monitored together, reducing the number of temperature sampling devices required for the operation of the traditional air compressor system and the traditional electric drive system, saving the occupied space of the whole vehicle system, and reducing the volume and cost of the whole vehicle system.

[0074] In one embodiment, the temperature-sensitive module 140 includes a first temperature-sensitive sampling resistor 141, a second temperature-sensitive sampling resistor 142, and a third temperature-sensitive sampling resistor 143. The first temperature-sensitive sampling resistor 141 is arranged close to the first phase drive circuit 110. The second temperature-sensitive sampling resistor 142 is arranged close to the second phase drive circuit 120. The third temperature-sensitive sampling resistor 143 is arranged close to the third phase drive circuit 130. The two connection ends of the first temperature-sensitive sampling resistor 141 are respectively connected to the control module 50. The two connection ends of the second temperature-sensitive sampling resistor 142 are respectively connected to the control module 50. The two connection ends of the third temperature-sensitive sampling resistor 143 are respectively connected to the control module 50.

[0075] The resistance values ​​of the first temperature-sensitive sampling resistor 141, the second temperature-sensitive sampling resistor 142, and the third temperature-sensitive sampling resistor 143 can change with temperature. When the temperature rises, the resistance value decreases. When the temperature decreases, the resistance value increases. The temperature change can be known by the change in the resistance value of the first temperature-sensitive sampling resistor 141, the second temperature-sensitive sampling resistor 142, and the third temperature-sensitive sampling resistor 143.

[0076] In one embodiment, the control module 50 includes a micro-control sub-module 510. The sampling end of the micro-control sub-module 510 is connected to the temperature sensing module 140. The micro-control sub-module 510 is used to monitor the temperature of the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130 according to the temperature signal.

[0077] The micro-control submodule 510 determines whether the temperature signal is greater than or equal to the threshold value. When the temperature signal is greater than the threshold value, the micro-control submodule 510 controls the first phase drive circuit 110, the second phase drive circuit 120, and the third phase drive circuit 130 to be turned off and not work, so as to prevent the circuit from being damaged due to overheating, and to ensure that the air compressor motor 30 and the electric drive motor 40 can operate together. When the temperature signal is less than the threshold value, the micro-control submodule 510 maintains the first phase drive circuit 110, the second phase drive circuit 120, and the third phase drive circuit 130 to continue working.

[0078] Therefore, by monitoring the temperature of the phase drive circuit through the micro-control submodule 510 and the temperature-sensitive module 140, it is possible to prevent the drive circuit from being damaged due to excessive temperature, thereby ensuring the stable operation of the first phase drive circuit 110, the second phase drive circuit 120 and the third phase drive circuit 130.

[0079] In one embodiment, the control module 50 further includes a gate driver module 520. The control end of the gate driver module 520 is connected to the signal end of the micro-control sub-module 510. The driving end of the gate driver module 520 is respectively connected to the first transistor 111, the second transistor 112, the third transistor 113 and the fourth transistor 114 in the phase drive circuit. The gate driver module 520 is used to control the on-off state of the first transistor 111, the on-off state of the second transistor 112, the on-off state of the third transistor 113 and the on-off state of the fourth transistor 114 according to the control signal output from the signal end of the micro-control sub-module 510.

[0080] The collector C1-PEU, gate G1-PEU and emitter E1-PEU of the first transistor 111 are respectively connected to the gate driver module 520. The collector C2-PEU, gate G2-PEU and emitter E2-PEU of the second transistor 112 are respectively connected to the gate driver module 520. The drain D1-HVAC, gate G1-HVAC and source S1-HVAC of the third transistor 113 are respectively connected to the gate driver module 520. The drain D2-HVAC, gate G2-HVAC and source S2-HVAC of the fourth transistor 114 are respectively connected to the gate driver module 520.

[0081] Through the gate driving submodule 520 , each transistor in the first phase driving circuit 110 , the second phase driving circuit 120 and the third phase driving circuit 130 can be controlled to be turned on or off according to the control signal output by the micro control submodule 510 .

[0082] In one embodiment, the gate driver submodule 520 includes an air compressor gate driver submodule 521 and an electric drive gate driver submodule 522. The air compressor gate driver submodule 521 may be an air compressor gate driver. The electric drive gate driver submodule 522 may be an electric drive gate driver, which are integrated together on the PCBA.

[0083] See also Fig.11In one embodiment, the control module 50 also includes a low-voltage connection submodule 530, a low-voltage electromagnetic interference filtering submodule (not marked in the figure), a communication submodule (not marked in the figure), a low-voltage and isolated power supply (not marked in the figure), a protection and logic submodule (not marked in the figure), an air compressor hardware protection submodule (not marked in the figure), an air compressor current sensor submodule (not marked in the figure), an air compressor AC voltage sensor submodule (not marked in the figure), a high-voltage DC sampling and overvoltage detection submodule (not marked in the figure), an electric drive hardware protection submodule (not marked in the figure), an electric drive current sensor submodule (not marked in the figure) and an electric drive position sensor submodule (not marked in the figure), etc.

[0084] Through the low-voltage connection submodule 530, the power supply end of the control module 50 is connected to the low-voltage power supply module 60. The low-voltage connection submodule 530 can be a low-voltage connector (Low Voltage connector). Through the low-voltage electromagnetic interference filter submodule, electromagnetic interference can be reduced and the stability of the power control device 100 can be improved. The low-voltage electromagnetic interference filter submodule can be a low-voltage electromagnetic interference filter (Low Voltage Electromagnetic Interference filter). Through the communication submodule, communication between the micro-control submodule 510 and other modules in the vehicle can be achieved to realize data transmission. The communication submodule can be a controller area network (Controller Area Network, CAN).

[0085] The low voltage and isolation power supply (Low Voltage and Isolation Power) provides an electrically isolated low voltage power supply for the control module 50. The low voltage power supply module 60 is connected to the low voltage connection submodule 530, and the low voltage connection submodule 530 is connected to the low voltage and isolation power supply, so that the low voltage power supply module 60 provides a voltage source for the low voltage and isolation power supply. Through the protection and logic submodule (Other protect and logic), the functions of undervoltage protection, overcurrent protection, overheating protection, coordination and control of the working order and state of each submodule in the control module 50 can be realized. Through the air compressor hardware protection (Air Compressor Hardware Protection) submodule, protection measures are provided for the electronic modules related to the air compressor motor 30 to ensure the safe and stable operation of the air compressor motor 30 and prevent hardware damage. Through the air compressor current sensor submodule (Air Compressor current sensor), the three-phase current size of the air compressor motor 30 can be monitored in real time, and the current signal is fed back to the micro control submodule 510. Therefore, the motor driving module 10 is regulated by the micro-control submodule 510 to achieve precise control of the air compressor motor 30 and ensure efficient and stable operation of the air compressor motor 30.

[0086] Through the air compressor AC voltage sensor (Air Compressor AC voltage Sensor) submodule, the AC voltage used during the operation of the air compressor motor 30 is continuously monitored to ensure the stable operation of the air compressor motor 30. Through the temperature sensor (Temp Sensor) submodule, the temperature near the submodule with high heat generation in the control module 50 is monitored in real time to ensure the stable operation of the control module 50 and implement overheating protection for each submodule. Through the high voltage DC sampling and overvoltage detection submodule (High Voltage Direct Current & High Voltage Overvoltage), the bus voltage provided by the voltage supply module 20 can be sampled and overvoltage protected to ensure the stable operation of the air compressor motor 30 and the electric drive motor 40.

[0087] The electric drive hardware protection submodule, which can also be called the power electronic unit hardware protection (Power Electronic Unit, HW protect, PEU HW protect) submodule, provides protection measures for the electronic modules related to the electric drive motor 40 to ensure the safe and stable operation of the electric drive motor 40 and prevent hardware damage. The electric drive current sensor (PEU currentSensor) submodule can monitor the three-phase current of the electric drive motor 40 in real time, and feed back the current signal to the micro-control submodule 510. Thus, the motor drive module 10 is regulated by the micro-control submodule 510 to achieve precise control of the electric drive motor 40 and ensure efficient and stable operation of the electric drive motor 40. Through the electric drive position sensor (PEU Position sensor) submodule, the position changes of components such as the motor rotor of the electric drive motor 40 can be monitored in real time, and the position data can be transmitted to the micro-control submodule 510. Thus, the motor drive module 10 is regulated by the micro-control submodule 510 to achieve regulation of the speed and torque of the electric drive motor 40 and ensure efficient and stable operation of the electric drive motor 40.

[0088] Through the micro-control sub-module 510, the operating states of the air compressor motor 30 and the electric drive motor 40 are jointly regulated, and the operating parameters of the air compressor motor 30 and the electric drive motor 40 are jointly collected, so that the data required for the operation are fully integrated. There is no need to rely on two separate sets of air compressor system equipment and electric drive system equipment, and the operation of the air compressor motor 30 and the electric drive motor 40 can be globally regulated more intelligently.

[0089] In one embodiment, the mechanical vortex assembly is connected to the air compressor motor 30 by means of gear transmission, belt transmission, etc., and the power generated by the air compressor motor 30 is transmitted to the wheels to propel the vehicle. The mechanical vortex assembly may include structures such as impellers, blades, or deflectors.

[0090] The gearbox is connected between the electric drive motor 40 and the wheels to adjust the speed and torque. Through the combination of gears of different sizes, the high speed of the electric drive motor 40 can be reduced to a speed suitable for the wheels, so that the vehicle can start, accelerate and climb smoothly.

[0091] See also Fig.12 The power control device 100 further includes a housing 910 . The housing 910 surrounds and forms a receiving space 911 . The motor drive module 10 is disposed in the receiving space 911 . The control module 50 is disposed in the receiving space 911 .

[0092] The housing 910 surrounds and forms a receiving space 911 for receiving the power control device 100. The housing 910 can protect the internal modules of the power control device 100, fix and support the internal modules, and achieve heat dissipation and electromagnetic shielding. For the relevant description of the motor drive module 10, reference can be made to the relevant description of the motor drive module 10 in the above embodiment. For the relevant description of the control module 50, reference can be made to the relevant description of the control module 50 in the above embodiment.

[0093] In one embodiment, the housing 910 includes a first housing 901 and a second housing 902. The second housing 902 is a semi-enclosed housing with an opening, forming a receiving space 911. The motor drive module 10 and the control module 50 are disposed in the receiving space 911. The first housing 901 and the second housing 902 are detachably connected. The first housing 901 is used to close the receiving space 911.

[0094] In one embodiment, the power control device 100 further includes a high-voltage connector assembly 920 and a low-voltage connector assembly 930. The high-voltage connector assembly 920 is disposed on a side wall of the housing 910 away from the accommodating space 911. The high-voltage connector assembly 920 is respectively connected to the power supply end of the motor drive module 10 and the high-voltage power supply module 20. The low-voltage connector assembly 930 is disposed on a side wall of the housing 910 away from the accommodating space 911. The low-voltage connector assembly 930 is respectively connected to the power supply end of the control module 50 and the low-voltage power supply module 60.

[0095] The high-voltage wiring harness is connected between the high-voltage connector assembly 920 and the high-voltage power supply module 20. The high-voltage wiring harness is a combination of wires required for transmitting high voltage and high current. Through the high-voltage connector assembly 920, the connection between the high-voltage power supply module 20 and the power supply end of the motor drive module 10 can be achieved. The high-voltage connector assembly 920 is arranged on the outer wall of the housing 910, which is conducive to the connection between the motor drive module 10 and the external high-voltage power supply module 20. The low-voltage wiring harness is connected between the low-voltage connector assembly 930 and the low-voltage power supply module 60. The low-voltage wiring harness is a combination of wires required for transmitting low voltage and low current. Through the low-voltage connector assembly 930, the connection between the low-voltage power supply module 60 and the power supply end of the control module 50 can be achieved. The low-voltage connector assembly 930 is arranged on the outer wall of the housing 910, which is conducive to the connection between the control module 50 and the external low-voltage power supply module 60.

[0096] Through the high-voltage plug assembly 920, the high-voltage signals required for the operation of the air compressor motor 30 and the electric drive motor 40 are derived from the same high-voltage power supply module 20. Through the low-voltage plug assembly 930, the low-voltage signals required for the operation of the air compressor motor 30 and the electric drive motor 40 are derived from the same low-voltage power supply module 60. Through the high-voltage plug assembly 920 and the low-voltage plug assembly 930, the air compressor motor 30 and the electric drive motor 40 share the high-voltage power supply module 20 and the low-voltage power supply module 60 when they are in operation, reducing the number of power supply devices required for the operation of the traditional air compressor system and the traditional electric drive system, saving the occupied space of the whole vehicle system, reducing the volume of the whole vehicle system, and reducing the cost.

[0097] In one embodiment, the low voltage connector assembly 930 is connected to the low voltage connection submodule 530 in the control module 50. The low voltage connection submodule 530 is connected to the low voltage and isolated power supply to provide the voltage required by the control module 50 to ensure the stable operation of the control module 50.

[0098] In one embodiment, the power control device 100 further includes a high-voltage filter module 70 and a voltage stabilizing module 80. The high-voltage filter module 70 is disposed in the accommodation space 911. The input end of the high-voltage filter module 70 is connected to the high-voltage plug-in assembly 920. The high-voltage filter module 70 is used to filter out electromagnetic interference signals generated by the high-voltage power supply module 20 and the motor drive module 10. The voltage stabilizing module 80 is disposed in the accommodation space 911. The input end of the voltage stabilizing module 80 is connected to the output end of the high-voltage filter module 70. The output end of the voltage stabilizing module 80 is connected to the power supply end of the motor drive module 10. The voltage stabilizing module 80 is used to stabilize the voltage at the power supply end of the motor drive module 10. The high-voltage filter module 70 and the voltage stabilizing module 80 are both disposed in the accommodation space 911. Through the high-voltage plug-in assembly 920, the high-voltage filter module 70 is connected to the external high-voltage power supply module 20.

[0099] In one embodiment, the power control device 100 further includes a heat dissipation component 940. The heat dissipation component 940 is disposed in the accommodation space 911. The motor drive module 10 is disposed between the heat dissipation component 940 and the control module 50.

[0100] The heat dissipation component 940 can be an air-cooled heat dissipation component or / and a water-cooled heat dissipation component. The motor drive module 10 includes multiple transistors, and there is a heat-generating electronic module. The control module 50 is a PCBA, which integrates multiple electronic modules, and there is also a heat-generating electronic module. Through the heat dissipation component 940, the heat generated by the motor drive module 10 and the control module 50 can be dissipated, and the temperature of the motor drive module 10 and the control module 50 during operation can be stabilized, thereby improving the reliability and performance of the power control device 100. Therefore, by dissipating the heat of the motor drive module 10 and the control module 50 through the heat dissipation component 940, the air compressor motor 30 and the electric drive motor 40 can share the same heat dissipation structure when they are in operation, reducing the number of heat dissipation devices required for the operation of the traditional air compressor system and the traditional electric drive system, saving the occupied space of the whole vehicle system, reducing the volume of the whole vehicle system, and reducing the cost.

[0101] In one embodiment, the heat dissipation component 940 may be an air-cooled heat dissipation structure formed by structures such as heat sinks, fans, and ventilation ducts. The heat dissipation component 940 may also be a water-cooled heat dissipation structure formed by structures such as cooling plates, radiators, and water pumps.

[0102] The present application provides a vehicle, including the power control device 100 in any one of the above embodiments. The vehicle may be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, a fuel cell vehicle, or other vehicle including the power control device.

[0103] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit, and the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0104] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0106] In the embodiments provided in the present application, it should be understood that the disclosed device / terminal equipment can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0107] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0108] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0109] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0110] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A power control device, characterized in that: include: A motor drive module (10), wherein an energy supply end of the motor drive module (10) is used to be connected to a high-voltage power supply module (20), a driving end of the motor drive module (10) is used to be connected to an air compressor motor (30) and an electric drive motor (40), the motor drive module (10) is used to drive the air compressor motor (30) and the electric drive motor (40) to operate according to a control signal, and the high-voltage power supply module (20) is used to provide electric energy required by the motor drive module (10); A control module (50), wherein a signal end of the control module (50) is connected to a control end of the motor drive module (10) and is used to send the control signal to the motor drive module (10); an energy supply end of the control module (50) is used to be connected to a low-voltage power supply module (60); and the low-voltage power supply module (60) is used to provide the electric energy required by the control module (50).

2. The power control device according to claim 1, characterized in that: The motor drive module (10) comprises: At least one phase drive circuit, the energy supply end of the phase drive circuit being used to be connected to the high-voltage power supply module (20), and the drive end of the phase drive circuit being used to be connected to the air compressor motor (30) and the electric drive motor (40); The signal end of the control module (50) is connected to the control end of the phase drive circuit and is used to send the control signal to the phase drive circuit. The phase drive circuit is used to drive the air compressor motor (30) and the electric drive motor (40) to operate according to the control signal.

3. The power control device according to claim 2, characterized in that: The phase driving circuit comprises: A first transistor (111), wherein a collector, a gate and an emitter of the first transistor (111) are respectively connected to a signal end of the control module (50), and a collector of the first transistor (111) is connected to a positive terminal of the high-voltage power supply module (20); a second transistor (112), wherein the collector, gate and emitter of the second transistor (112) are respectively connected to the signal end of the control module (50), the collector of the second transistor (112) is connected to the emitter of the first transistor (111), the collector of the second transistor (112) is connected to the electric drive motor (40), and the emitter of the second transistor (112) is connected to the negative terminal of the high-voltage power supply module (20); a third transistor (113), wherein the gate and source of the third transistor (113) are respectively connected to the signal end of the control module (50), the drain of the third transistor (113) is connected to the collector of the first transistor (111), and the drain of the third transistor (113) is connected to the positive terminal of the high-voltage power supply module (20); A fourth transistor (114), wherein the drain and the gate of the fourth transistor (114) are respectively connected to the signal end of the control module (50), the drain of the fourth transistor (114) is connected to the source of the third transistor (113), the drain of the fourth transistor (114) is connected to the air compressor motor (30), the source of the fourth transistor (114) is connected to the emitter of the second transistor (112), and the source of the fourth transistor (114) is connected to the negative terminal of the high-voltage power supply module (20).

4. The power control device according to claim 2, characterized in that: The phase driving circuit comprises: A first transistor (111), wherein a collector, a gate and an emitter of the first transistor (111) are respectively connected to a signal end of the control module (50), and a collector of the first transistor (111) is connected to a positive terminal of the high-voltage power supply module (20); a second transistor (112), wherein the gate and the emitter of the second transistor (112) are respectively connected to the signal end of the control module (50), the collector of the second transistor (112) is connected to the emitter of the first transistor (111), the collector of the second transistor (112) is connected to the electric drive motor (40), and the emitter of the second transistor (112) is connected to the negative terminal of the high-voltage power supply module (20); a third transistor (113), wherein the gate and source of the third transistor (113) are respectively connected to the signal end of the control module (50), the drain of the third transistor (113) is connected to the collector of the first transistor (111), and the drain of the third transistor (113) is connected to the positive terminal of the high-voltage power supply module (20); A fourth transistor (114), wherein the gate and source of the fourth transistor (114) are respectively connected to the signal end of the control module (50), the drain of the fourth transistor (114) is connected to the source of the third transistor (113), the drain of the fourth transistor (114) is connected to the air compressor motor (30), and the source of the fourth transistor (114) is connected to the negative terminal of the high-voltage power supply module (20).

5. The power control device according to claim 2, characterized in that: The motor drive module (10) further comprises: A temperature-sensitive module (140) is arranged close to the phase driving circuit, and the temperature-sensitive module (140) is connected to a sampling end of the regulating module (50); The temperature sensing module (140) is used to collect the temperature signal of the phase driving circuit and transmit the temperature signal to the control module (50).

6. The power control device according to claim 5, characterized in that: The control module (50) comprises: A micro-control sub-module (510), wherein a sampling end of the micro-control sub-module (510) is connected to the temperature-sensitive module (140) and is used to adjust the working state of the phase drive circuit according to the temperature signal.

7. The power control device according to claim 6, characterized in that: The control module (50) further comprises: A gate driving submodule (520), wherein a control end of the gate driving submodule (520) is connected to a signal end of the micro-control submodule (510), and a driving end of the gate driving submodule (520) is connected to the phase driving circuit; The gate driving submodule (520) is used to adjust the working state of the phase driving circuit according to the control signal output by the signal terminal of the micro-control submodule (510).

8. The power control device according to any one of claims 1 to 7, characterized in that: The power control device also includes: A high-voltage filter module (70), wherein an input end of the high-voltage filter module (70) is used to be connected to the high-voltage power supply module (20), and an output end of the high-voltage filter module (70) is connected to an energy supply end of the motor drive module (10); The high-voltage filter module (70) is used to filter out electromagnetic interference signals generated by the high-voltage power supply module (20) and the motor drive module (10).

9. The power control device according to claim 8, characterized in that: The power control device also includes: A voltage stabilizing module (80), wherein an input end of the voltage stabilizing module (80) is connected to an output end of the high-voltage filtering module (70), and an output end of the voltage stabilizing module (80) is connected to an energy supply end of the motor driving module (10); The voltage stabilizing module (80) is used to stabilize the voltage at the energy supply end of the motor driving module (10).

10. The power control device according to any one of claims 1 to 7, characterized in that: The power control device also includes: A housing (910) surrounds and forms a receiving space (911); The motor drive module (10) and the control module (50) are arranged in the accommodating space (911).

11. The power control device according to claim 10, characterized in that: The power control device also includes: A high-voltage connector assembly (920) is arranged on a side wall of the housing (910) away from the accommodating space (911), and the high-voltage connector assembly (920) is respectively connected to the energy supply end of the motor drive module (10) and the high-voltage power supply module (20); A low-voltage connector assembly (930) is arranged on a side wall of the housing (910) away from the accommodating space (911), and the low-voltage connector assembly (930) is respectively connected to the energy supply end of the control module (50) and the low-voltage power supply module (60).

12. The power control device according to claim 10, characterized in that: The power control device also includes: The heat dissipation component (940) is arranged in the accommodating space (911), and the motor driving module (10) is arranged between the heat dissipation component (940) and the regulating module (50).

13. A vehicle, characterized in that: It comprises a power control device as claimed in any one of claims 1 to 12.

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