Integrated controller, electric drive assembly and vehicle

Abstract

The present invention discloses an integrated controller, an electric drive assembly, and a vehicle. The integrated controller comprises a housing; a control unit and a charge-discharge conversion unit disposed within the housing; and a high-voltage interface assembly comprising a high-voltage interface disposed on the housing and a high-voltage connector disposed within the housing. The high-voltage connector is connected to the high-voltage interface, the control unit, and the charge-discharge conversion unit to access and distribute high-voltage battery signals. This integrated controller eliminates the need for a high-voltage distribution box, reduces the need for high-voltage wiring harnesses, lowers costs, and saves space on the vehicle.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to an integrated controller, an electric drive assembly and a vehicle. Background Art

[0002] In related technologies, electric drive assemblies have multiple integration methods, for example, two-in-one integration of motor controller and DC / DC, or three-in-one integration of motor, motor controller and reducer, or three-in-one integration of DC / DC, OBC (ON-Board Controller) and PDU (Power Distribution Unit), etc., to save costs in wiring harnesses, brackets, etc. However, the above integrations are all physical integration solutions, which simply assemble different modules together, and there is little reuse of components between parts.

[0003] For example, the "power three-in-one" integration of the motor, motor controller and reducer is required. The signal wiring harness between the integrated "power three-in-one" and the VCU (Vehicle Control Unit), the high-voltage wiring harness between the integrated "power three-in-one" and the PDU, the high-voltage wiring harness between the PDU and DC / DC, OBC, the signal wiring harness for the interaction between DC, OBC and the entire vehicle, as well as the housings and module fixing brackets of these modules are all necessary, which is costly. In addition, the separate layout of the modules takes up a large space in the entire vehicle, and the signal interaction transmission speed is slow. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an integrated controller that can eliminate the need for a high-voltage distribution box, reduce the need for high-voltage wiring harnesses, lower costs, and save space in the vehicle.

[0005] A second object of the present invention is to provide an electric drive assembly.

[0006] A third object of the present invention is to provide a vehicle.

[0007] In order to solve the above problems, an embodiment of the first aspect of the present invention provides an integrated controller, including: a box body; a control unit and a charge-discharge conversion unit arranged in the box body; a high-voltage interface assembly, the high-voltage interface assembly including a high-voltage interface arranged on the box body and a high-voltage connector arranged in the box body, the high-voltage connector is connected to the high-voltage interface, the control unit and the charge-discharge conversion unit, and is used to access and distribute high-voltage battery signals.

[0008] According to the integrated controller of an embodiment of the present invention, the control unit and the charge-discharge conversion unit use the same box, which reduces the use of structural parts and saves costs. In addition, a high-voltage interface component is provided to connect with the control unit and the charge-discharge conversion unit, which can reduce the demand for high-voltage connectors and high-voltage wiring harnesses. At the same time, the setting of the high-voltage distribution box is also eliminated, saving space and reducing costs.

[0009] In some embodiments, the control unit includes a motor controller, a vehicle controller and a battery management controller, and the charge and discharge conversion unit includes a DC conversion unit and an on-board charging unit.

[0010] In some embodiments, the high-voltage interface assembly includes a first high-voltage interface, a second high-voltage interface and a third high-voltage interface, as well as a first connector, a second connector, a third connector and a fourth connector, arranged on the box body; wherein, the first high-voltage interface is used to access the high-voltage battery signal, the first connector is connected to the first high-voltage interface and the second high-voltage interface respectively, the second connector is connected to the DC conversion unit and the on-board charging unit, the third connector is connected to the motor controller, and the fourth connector is connected to the first high-voltage interface and the third high-voltage interface.

[0011] In some embodiments, the integrated controller further includes: a low-voltage connector, which is disposed in the box, and is connected to the control unit and the charge-discharge conversion unit for receiving low-voltage power signals and transmitting communication signals.

[0012] In some embodiments, the motor controller, the vehicle controller and the battery management controller are integrated in a first digital signal processing chip; the DC conversion unit is arranged on a second digital signal processing chip; and the on-board charging unit is arranged on a third digital signal processing chip.

[0013] In some embodiments, the integrated controller also includes: a first power supply unit, the first power supply unit is connected to the first digital signal processing chip, and is used to convert the low-voltage power supply signal into the power supply signal required by the first digital signal processing chip; a second power supply unit, the second power supply unit is connected to the second digital signal processing chip and the third digital signal processing chip, and is used to convert the low-voltage power supply signal into the power supply signal required by the second digital signal processing chip and the third digital signal processing chip.

[0014] In some embodiments, the integrated controller further includes: an inlet filter unit, which is connected to the low-voltage connector, the first power supply unit, and the second power supply unit, and is used to filter the low-voltage power supply signal.

[0015] A second aspect of the present invention provides an electric drive assembly, comprising: the integrated controller described in the above embodiment, the integrated controller being used to issue a heating control signal when determining that the vehicle has a heating requirement; a motor and a motor drive module, the motor drive module being connected to the integrated controller and the motor, and being used to drive the motor to generate heat in response to the heating control signal.

[0016] According to the electric drive assembly of an embodiment of the present invention, an integrated controller utilizes a motor controller to control the motor drive module, and can adopt driving heating and stalled-rotor heating methods to achieve the function of heating the battery in a low-temperature environment, without the need to design a heating module separately for heating the battery, thereby saving the cost of the entire vehicle.

[0017] In some embodiments, the electric drive assembly further includes a reducer connected to the integrated controller.

[0018] A third aspect of the present invention provides a vehicle, comprising a power battery and the integrated controller described in the above embodiment, wherein the power battery is connected to the integrated controller; or, the vehicle comprises a power battery and the electric drive assembly described in the above embodiment.

[0019] According to the vehicle of the embodiment of the present invention, by adopting the integrated controller or electric drive assembly provided by the above embodiment, the integration and reuse of the entire vehicle can be improved, the cost of the entire vehicle can be reduced, and the space of the entire vehicle can be saved.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0022] Figure 1 is a schematic structural diagram of an integrated controller according to an embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of an integrated low-voltage connector in an integrated controller according to an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of low-voltage signal integration in an integrated controller according to one embodiment of the present invention;

[0025] Figure 4 2 is a schematic structural diagram of an integrated inlet filter unit in an integrated controller according to an embodiment of the present invention;

[0026] Figure 5is a schematic structural diagram of an electric drive assembly according to one embodiment of the present invention;

[0027] Figure 6 FIG. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] Integrated controller 10; electric drive assembly 20; vehicle 30;

[0030] Box 1; control unit 2; charge and discharge conversion unit 3; high voltage interface component 4; low voltage connector 5; first power supply unit 6; second power supply unit 7; inlet filter unit 8;

[0031] A first digital signal processing chip 11; a second digital signal processing chip 12; a third digital signal processing chip 13;

[0032] First high-voltage interface 41; second high-voltage interface 42; third high-voltage interface 43;

[0033] Motor 201; motor drive module 202; power battery 301. DETAILED DESCRIPTION

[0034] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0035] In order to solve the above problems, the first embodiment of the present invention proposes an integrated controller, which can eliminate the setting of the high-voltage distribution box, reduce the demand for high-voltage wiring harnesses, reduce costs, and save space in the entire vehicle.

[0036] Reference below Figure 1-Figure 4 An integrated controller according to an embodiment of the present invention is described.

[0037] like Figure 1 As shown, the integrated controller 10 includes a box 1, a control unit 2, a charge and discharge conversion unit 3 and a high-voltage interface component 4.

[0038] Among them, the control unit 2 and the charge-discharge conversion unit 3 are arranged in the box body 1, that is, the control unit 2 and the charge-discharge conversion unit 3 use the same box body 1, which can structurally reduce the use of the shell, improve the integration, save space and reduce costs.

[0039] The high-voltage interface assembly 4 includes a high-voltage interface provided on the housing 1 and a high-voltage connector provided in the housing 1. The high-voltage connector is connected to the high-voltage interface, the control unit 2 and the charge-discharge conversion unit 3 for accessing and distributing high-voltage battery signals. Specifically, for the original high-voltage power distribution design of the whole vehicle, there is a high-voltage distribution box. The high-voltage power supply needs to enter the high-voltage distribution box through the high-voltage interface. The high-voltage distribution box divides the high-voltage power supply into multiple branches. Each branch is output by a different high-voltage interface after passing through different fuses and contactors, thereby completing high-voltage power distribution for other modules outside the high-voltage distribution box. Unlike the original high-voltage power distribution design of the whole vehicle, the embodiment of the present invention provides a high-voltage interface assembly 4, and the control unit 2 and the charge-discharge conversion unit 3 are provided in the housing 1, and are both connected to the high-voltage connector provided in the housing 1, so that the components connected to the control unit 2 and the charge-discharge conversion unit 3 are connected to the high-voltage connector provided in the housing 1. The high-voltage wiring harness, the control unit 2, and the charge-discharge conversion unit 3 all share the same box 1. That is, the embodiment of the present invention recombines the part of the high-voltage distribution box in the original vehicle high-voltage power distribution design that distributes the high-voltage power supply, namely the high-voltage connector, with other modules outside the high-voltage distribution box, namely the control unit 2 and the charge-discharge conversion unit 3, so as to be integrated and placed in the box 1. With this design, the setting of the high-voltage distribution box can be eliminated to save space, and there is no need to design the corresponding high-voltage interface for high-voltage distribution of the control unit 2 and the charge-discharge conversion unit 3, thereby reducing the demand for high-voltage connectors and high-voltage wiring harnesses and reducing costs.

[0040] According to the integrated controller 10 of an embodiment of the present invention, the control unit 2 and the charge-discharge conversion unit 3 are arranged to use the same box 1, which reduces the use of structural parts and saves costs. In addition, a high-voltage interface component 4 is arranged to be connected to the control unit 2 and the charge-discharge conversion unit 3, which can reduce the demand for high-voltage connectors and high-voltage wiring harnesses, and also eliminates the setting of the high-voltage distribution box, saving space and reducing costs.

[0041] In some embodiments, the control unit 2 includes a motor controller, a vehicle controller, and a battery management controller. This highly integrates the motor controller, the vehicle controller, and the battery management controller, which can reduce the size of the assembly and reduce the need for signal wiring harnesses, while also shortening interaction time and improving efficiency. Furthermore, the charge-discharge conversion unit 3 includes a DC conversion unit and an onboard charging unit. This integrates the DC conversion unit and the onboard charging unit to reduce the size of the assembly and improve integration. Therefore, the above integration method also facilitates the reuse of subsequent structures or modules, thereby improving the reuse of the integrated controller 10.

[0042] In some embodiments, as Figure 1 As shown, the high-voltage interface assembly 4 includes a first high-voltage interface 41, a second high-voltage interface 42 and a third high-voltage interface 43, as well as a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece provided on the box body.

[0043] Among them, the first high-voltage interface 41 is used to access the high-voltage battery signal, the first connector is connected to the first high-voltage interface 41 and the second high-voltage interface 42 respectively, the second connector is connected to the DC conversion unit and the on-board charging unit, the third connector is connected to the motor controller, and the fourth connector is connected to the first high-voltage interface 41 and the third high-voltage interface 43.

[0044] Specifically, unlike the original vehicle high-voltage power distribution design, the embodiment of the present invention divides the relevant components in the original high-voltage power distribution box into two parts, such as Figure 1 As shown, part of the high-voltage distribution box is arranged in the high-voltage battery of the vehicle and connected to the power battery, and the other part is connected to the control unit 2 and the charge and discharge conversion unit 3 and placed in the box 1. Therefore, during high-voltage power distribution, the high-voltage power supply, i.e., the high-voltage battery signal, is output through the fuse K1 and the high-voltage interface at the high-voltage battery end, and is transmitted to the first high-voltage interface 41 by the connected high-voltage wiring harness. The first high-voltage interface 41 divides the high-voltage battery signal into four, that is, high-voltage power is distributed to the motor controller of the control unit 2, and high-voltage power is distributed to the DC conversion unit and the on-board charging unit in the box 1 through the fuse K3, and is output to the second high-voltage interface 42 through the fuse K2, and is distributed to the air conditioner outside the box 1 by the high-voltage wiring harness through the high-voltage interface at the air-conditioning end, and is output to the third high-voltage interface 43 through the positive and negative contactor control to distribute power to the DC charging port outside the box 1. Therefore, the embodiment of the present invention eliminates the setting of the high-voltage distribution box through the above all-in-one integrated design, and reduces the use of high-voltage interfaces and high-voltage wiring harnesses when performing high-voltage power distribution on the control unit 2 and the charge-discharge conversion unit 3, shortens the length of the wiring harness between different modules, and saves cost and space.

[0045] In some embodiments, as Figure 2 As shown, the integrated controller 10 further includes a low-voltage connector 5 .

[0046] A low-voltage connector 5 is provided within the housing 1 and connects to the control unit 2 and the charge-discharge conversion unit 3 for receiving low-voltage power signals and transmitting communication signals. Specifically, in existing low-voltage vehicle designs, each module is equipped with an independent controller, requiring a separate low-voltage connector for each module to exchange information with external signals. However, in the embodiments of the present invention, all low-voltage connectors in the existing low-voltage vehicle design are combined into one. Specifically, after the motor controller, vehicle controller, and battery management controller are integrated into the control unit 2, and the DC converter unit and onboard charging unit are integrated into the charge-discharge conversion unit 3, the control unit 2 and the charge-discharge conversion unit 3 utilize the same low-voltage connector 5. This allows the low-voltage power signal and the transmission communication signal to be split into two after being input through the low-voltage connector 5, providing power and signal exchange to the control unit 2 and the charge-discharge conversion unit 3, respectively. This design reduces the use of low-voltage wiring harnesses and low-voltage interfaces, thus reducing costs.

[0047] In some embodiments, as Figure 3 As shown, the motor controller, vehicle controller and battery management controller are integrated in the first digital signal processing chip 11; the DC conversion unit is provided in the second digital signal processing chip 12; and the on-board charging unit is provided in the third digital signal processing chip 13.

[0048] That is, in the original low-voltage design of the whole vehicle, a separate digital signal processing chip is provided for each module to collect and control signals. However, in the embodiment of the present invention, after the motor controller, the whole vehicle controller and the battery management controller are integrated into the control unit 2, and the DC conversion unit and the on-board charging unit are integrated into the charge-discharge conversion unit 3, when resources are sufficient, the motor controller, the whole vehicle controller and the battery management controller are designed to use a combined first digital signal processing chip 11, thereby reducing the number of digital signal processing chips used, saving costs and reducing space occupied.

[0049] Specifically, if Figure 2 As shown, the embodiment of the present invention combines all low-voltage connectors in the original low-voltage design of the whole vehicle, and the low-voltage power supply signal and the transmission communication signal transmitted by the control unit 2 and the charge-discharge conversion unit 3 are input by the interface of the same low-voltage connector 5, thereby saving the number of low-voltage connectors used, and under the premise that the received low-voltage power supply signal and the transmission communication signal are the same, different modules in the control unit 2 and the charge-discharge conversion unit 3 can share the same interface pin input, that is, the embodiment of the present invention changes the original method of different modules collecting the required communication signals to different modules using the same sampling channel for the same communication signal, that is, the same communication signal is transmitted by the same pin of the low-voltage connector 5 and transmitted to different modules, thereby reducing the number of pins of the low-voltage connector 5 and saving costs.

[0050] In an embodiment, Figure 3 As shown, for the same externally transmitted communication signal, the low-voltage connector 5 is designed with only one sampling channel for signal acquisition, and the acquired signal is sent to different digital signal processing chips for information processing. For example, for the CAN communication of the power network, the low-voltage connector 5 is provided with a fixed connector for external connection, that is, the power network CAN communication signal is only received by this connector. The low-voltage connector 5 divides the received power network CAN communication signal into three parts, which are respectively transmitted to the first digital signal processing chip 11, the second digital signal processing chip 12, and the third digital signal processing chip 13, so that the vehicle controller, the DC conversion unit, and the on-board charging unit can simultaneously receive the power network CAN communication signal; for the AC charging CC signal, this signal is a collection signal required by both the on-board charging unit and the battery management controller. After integration, the transmission of this signal is combined into a connector interface, using one collection channel, that is, this signal only needs to pass through one signal input of the low-voltage connector 5, and is divided into two parts and transmitted to the on-board charging unit and the battery management controller respectively. The controller is used to enable the battery management controller and the on-board charging unit to perform corresponding operations based on this signal, such as detecting the status information of whether the charging gun is connected. For collision signals, bus voltage sampling signals, or water temperature sampling signals, these signals need to be separately transmitted to the motor controller, vehicle controller, and battery management controller before integration. However, after the motor controller, vehicle controller, and battery management controller are integrated into the first digital signal processing chip 11, the transmission of these signals can be combined using the interface of the same low-voltage connector 5, and sent to the integrated first digital signal processing chip 11 using a single acquisition channel. In this way, the vehicle controller can determine whether the vehicle has collided based on the collision signal, the voltage value of the power battery based on the bus voltage sampling signal, and the heat dissipation status of the cooling system and the control of the water pump based on the water temperature sampling signal. Therefore, unlike the existing design in which each module in the vehicle uses a separate device, the embodiment of the present invention achieves the goals of low cost, small size, and light weight by reusing the low-voltage connector 5 and the low-voltage interface.

[0051] In some embodiments, as Figure 2 As shown, the integrated controller 10 further includes a first power supply unit 6 and a second power supply unit 7 .

[0052] Among them, the first power supply unit 6 is connected to the first digital signal processing chip 11, and is used to convert the low-voltage power supply signal into the power supply signal required by the first digital signal processing chip 11; the second power supply unit 7 is connected to the second digital signal processing chip 12 and the third digital signal processing chip 13, and is used to convert the low-voltage power supply signal into the power supply signal required by the second digital signal processing chip 12 and the third digital signal processing chip 13.

[0053] In other words, it is different from the original design in which each module in the vehicle has a separate power supply. Figure 2 As shown, after integrating the motor controller, vehicle controller, and battery management controller into the control unit 2, and integrating the DC conversion unit and on-board charging unit into the charge-discharge conversion unit 3, the embodiment of the present invention changes the original method of powering different modules separately to a method of multiplexing the same voltage power supply for multiple modules. Specifically, the low-voltage power signal is input through the low-voltage connector 5, split into two and transmitted to the first power supply unit 6 and the second power supply unit 7 respectively. The first power supply unit 6 converts the low-voltage power signal into the power required by the first digital signal processing chip 11 to power the control unit 2, and the second power supply unit 7 converts the low-voltage power signal into the power required by the second digital signal processing chip 12 and the third digital signal processing chip 13 to power the charge-discharge conversion unit 3. Therefore, by combining the multiple power modules in the original vehicle design into the first power supply unit 6 and the second power supply unit 7, the embodiment of the present invention can reduce the demand for power module components, lower costs, and reduce the size, saving space in the vehicle.

[0054] In some embodiments, as Figure 2 As shown in FIG4 , the integrated controller 10 further includes an inlet filtering unit 8 .

[0055] The inlet filter unit 8 is connected to the low-voltage connector 5 , the first power supply unit 6 and the second power supply unit 7 , and is used to filter the low-voltage power supply signal.

[0056] Specifically, in the original low-voltage design of the whole vehicle, a separate inlet filter protection circuit is provided for each module. However, in the embodiment of the present invention, multiple inlet filter protection circuits in the original whole vehicle design are combined into one inlet filter unit 8, that is, each module in the integrated controller 10 shares the same inlet filter unit 8, for example Figure 4 As shown, the low-voltage battery power supply of the passenger car is 12V, and all modules on the vehicle are powered by the 12V power supply. The low-voltage power supply signal enters through the low-voltage connector 5 and is uniformly input to the input filter unit 8. The input filter unit 8 performs input protection filtering on the low-voltage power supply signal, such as input TVS tube, anti-reverse diode, input electrolytic capacitor, input ceramic capacitor, magnetic beads, differential mode inductor, common mode inductor and other circuit processing, and sends the processed low-voltage power supply signal to the first power supply unit 6 and the second power supply unit 7 to provide low-voltage power supply to different modules in the integrated controller 10. Therefore, the above design can effectively avoid input interference, anti-interference, lightning strikes, surges and the like, and can reduce the design of the input filter protection circuit, saving cost and space.

[0057] In summary, according to the integrated controller 10 of the embodiment of the present invention, by integrating the motor controller, the vehicle controller and the battery management controller into the control unit 2, and integrating the DC conversion unit and the on-board charging unit into the charge-discharge conversion unit 3, it is possible to eliminate the setting of the high-voltage distribution box, reduce the demand for high-voltage connectors and high-voltage wiring harnesses, share the same box 1, reduce the design of the module shell and related support frames, share the low-voltage connector 5, save low-voltage wiring harnesses and low-voltage interfaces, and reuse the power supply unit and acquisition channel between different modules that use the same power supply and collect the same signal, without the need to design the power supply module and signal wiring harness separately, thereby reducing the cost of the whole vehicle, saving the space of the whole vehicle, reducing the weight of the whole vehicle, and improving the integration and reuse of the whole vehicle.

[0058] A second embodiment of the present invention provides an electric drive assembly, such as Figure 5 As shown, the electric drive assembly 20 includes the integrated controller 20 provided in the above embodiment, as well as a motor 301 and a motor drive module 302 .

[0059] The integrated controller 20 is configured to issue a heating control signal when determining that the vehicle requires heating. The motor drive module 302 is connected to the integrated controller 20 and the motor 301 and is configured to drive the motor to generate heat in response to the heating control signal. In other words, this embodiment of the present invention utilizes the integrated integrated controller 10 of the aforementioned embodiment, and shares the motor 301 and motor drive module 302 with each module within the integrated controller 10. This allows for battery heating in low-temperature environments, eliminating the need for a separate heating module specifically designed for battery heating and further reducing vehicle costs.

[0060] Specifically, if Figure 5 As shown, the embodiment of the present invention directly reuses the integrated controller 10 and the motor drive module 302 of the electric drive assembly 20 to heat the high-voltage battery. The integrated controller 10 outputs a certain proportion of reactive current or outputs all reactive current during stall heating to heat the motor drive module 302 and the motor windings, thereby increasing the water temperature in a low-temperature environment and heating the high-voltage battery through the water circulation system of the entire vehicle.

[0061] Reference Figure 5 As shown, the electric drive assembly 20 is mainly divided into the following three working conditions.

[0062] When the electric drive assembly 20 is in normal drive mode, the integrated controller 10 outputs id = 0 and iq = Imax under software control, thereby ensuring maximum shaft-end output torque and driving the vehicle normally. In low-temperature environments, to ensure optimal battery performance, the battery needs to be heated. This is accomplished by reusing the motor drive module 302 for battery heating, utilizing heat generated by the motor 301 and heating the battery through a thermal cycle system. Heating by the motor drive module 302 is divided into two modes: driving heating and stall heating. Driving heating, typically performed at low or medium torque, involves the integrated controller 10 increasing id and decreasing iq, thereby increasing total current and achieving heating while maintaining constant shaft-end output torque. Stall heating, when the vehicle is parked, involves the integrated controller 10 controlling id = Imax and iq = 0, ensuring zero shaft-end output torque. Three-phase DC heating is used for motor heating.

[0063] According to the electric drive assembly 20 of the embodiment of the present invention, the motor drive module 302 is controlled by the motor controller through the integrated controller 10, and the driving heating and stall heating methods can be adopted to realize the function of heating the battery in a low temperature environment, without having to design a heating module separately for heating the battery, thereby saving the cost of the entire vehicle.

[0064] In some embodiments, the electric drive assembly 20 also includes a reducer, which is connected to the integrated controller 10. That is to say, structurally, the same motor 301 and reducer are used for different modules in the integrated controller 10. Therefore, through structural reuse, the use of structural parts can be reduced, the cost of the entire vehicle can be reduced, the assembly volume can be reduced, and the weight can be reduced.

[0065] A third embodiment of the present invention provides a vehicle. The vehicle according to the embodiment of the present invention is described below.

[0066] In one embodiment of the present invention, the vehicle 30 includes a power battery 301 and the integrated controller 10 provided in the above embodiment, and the power battery 301 is connected to the integrated controller 10 .

[0067] In this embodiment, the specific implementation of the vehicle 30 is similar to the specific implementation of the integrated controller 10 in any of the above embodiments of the present invention. Please refer to the description of the integrated controller 10 for details. In order to reduce redundancy, it will not be repeated here.

[0068] In another embodiment of the present invention, Figure 6 As shown, the vehicle 30 includes a power battery 301 and the electric drive assembly 20 provided in the above embodiment.

[0069] In this embodiment, the AC charging port uses a PFC (Power Factor Correction) circuit to achieve bidirectional conversion, converting 220V AC to DC and vice versa. Furthermore, the primary side of the on-board charging unit's transformer is shared, and an additional winding is added to the secondary side, thereby simultaneously achieving the output function of the DC conversion unit.

[0070] The charging methods for the vehicle 30 are divided into DC charging and AC charging. During DC charging, the current flows from the charging pile through the power distribution part of the electric drive assembly 20 to the power battery 301 to charge the power battery 301; during AC charging, the current is converted from 220V household electricity through the on-board charging unit in the electric drive assembly 20 to charge the power battery 301. When the vehicle 30 is driven normally, the current flows from the power battery 301 through the motor controller in the electric drive assembly 20 to the motor to drive the normal operation of the vehicle 30. Heating is further divided into driving heating and stall heating. Driving heating means that during the normal driving process of the vehicle 30, the motor controller controls a part of the output of useful work to drive the vehicle 30 through PWM waves, and a part of the output is useless work. The current flows through the motor controller and the motor, causing the motor coil to heat up, heating the coolant, and finally heating the power battery 301.

[0071] According to the vehicle 30 of the embodiment of the present invention, by adopting the integrated controller 10 or the electric drive assembly 20 provided in the above embodiment, the integration and reuse of the entire vehicle can be improved, the cost of the entire vehicle can be reduced, and the space of the entire vehicle can be saved.

[0072] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0073] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An integrated controller, characterized in that: include: Box; A control unit and a charge-discharge conversion unit are provided in the box; A high-voltage interface assembly, comprising a high-voltage interface provided on the box body and a high-voltage connector provided in the box body, wherein the high-voltage connector is connected to the high-voltage interface, the control unit, and the charge-discharge conversion unit; The control unit includes a motor controller, a vehicle controller and a battery management controller, and the charge-discharge conversion unit includes a DC conversion unit and an on-board charging unit; The high-voltage interface assembly includes a first high-voltage interface, a second high-voltage interface, and a third high-voltage interface provided on the box body, and the high-voltage connector includes a first connector, a second connector, a third connector, and a fourth connector; Among them, the first high-voltage interface is used to access the high-voltage battery signal and divide the high-voltage battery signal into four, the first connector is connected to the first high-voltage interface and the second high-voltage interface respectively, the second connector is connected to the DC conversion unit and the on-board charging unit, the third connector is connected to the motor controller, and the fourth connector is connected to the first high-voltage interface and the third high-voltage interface.

2. The integrated controller according to claim 1, characterized in that: The integrated controller further comprises: A low-voltage connector is provided in the box body, and is connected to the control unit and the charge-discharge conversion unit, and is used for receiving low-voltage power supply signals and transmitting communication signals.

3. The integrated controller according to claim 2, characterized in that: The motor controller, the vehicle controller and the battery management controller are integrated into a first digital signal processing chip; The DC conversion unit is arranged on the second digital signal processing chip; The on-board charging unit is provided on the third digital signal processing chip.

4. The integrated controller according to claim 3, characterized in that: The integrated controller further comprises: a first power supply unit, connected to the first digital signal processing chip, and configured to convert the low-voltage power supply signal into a power supply signal required by the first digital signal processing chip; The second power supply unit is connected to the second digital signal processing chip and the third digital signal processing chip, and is used to convert the low-voltage power supply signal into the power supply signal required by the second digital signal processing chip and the third digital signal processing chip.

5. The integrated controller according to claim 4, characterized in that: The integrated controller further comprises: An inlet filter unit is connected to the low-voltage connector, the first power supply unit and the second power supply unit, and is used for filtering the low-voltage power supply signal.

6. An electric drive assembly, characterized in that: include: The integrated controller according to any one of claims 1 to 5, wherein the integrated controller is configured to send a heating control signal when determining that the vehicle has a heating demand; A motor and a motor driving module are connected to the integrated controller and the motor, and are used to drive the motor to generate heat in response to the heating control signal.

7. The electric drive assembly according to claim 6, characterized in that: The electric drive assembly further includes a reducer connected to the integrated controller.

8. A vehicle, characterized in that: The vehicle comprises a power battery and the integrated controller according to any one of claims 1 to 5, wherein the power battery is connected to the integrated controller; Alternatively, the vehicle includes a power battery and the electric drive assembly according to claim 6 or 7.

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