A controller, control method, control system, and vehicle

Abstract

The application relates to a controller, a control method, a control system and a vehicle, and belongs to the technical field of vehicles, and aims to solve the technical problem of low reliability of a compressor and a heater controller in the field of vehicle thermal management. The controller comprises a processor, a first power supply circuit, a first control circuit and a second control circuit. The first control circuit is coupled to the first power supply circuit and the processor, and is also used for coupling a heating circuit. The second control circuit is coupled to the first power supply circuit and the processor, and is also used for coupling a refrigeration circuit. The processor is configured to: in response to a received control instruction, convert a first voltage input by the first power supply circuit into a second voltage used for driving the heating circuit to work through the first control circuit, and / or in response to the received control instruction, convert a third voltage input by the first power supply circuit into a fourth voltage used for driving the refrigeration circuit to work through the second control circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a controller, a control method, a control system and a vehicle. BACKGROUND

[0002] With the development and use of more and more electric vehicles, the application of compressors and heaters in the field of vehicle thermal management has also increased; in traditional air conditioning systems, the two are relatively independent, and in heat pump systems, the working conditions of the two are increased; usually, the compressor and the heater are controlled by their own controllers, which increases the complexity of the entire thermal management system and reduces the reliability.

[0003] One related technology proposes to use a two-in-one driver module to drive the air conditioner compressor and the heater, and integrates the driving circuit required by the compressor and the heater in the intelligent power module, so that one intelligent power module has the functions of driving the compressor and the heater, which is beneficial to the miniaturization of the controller, but the two-in-one driver module only integrates the driving circuit, and the reliability is low.

[0004] In another related technology, a two-in-one intelligent power module is disclosed, and the circuit units integrated in the two-in-one intelligent power module include a first sub-circuit for driving the compressor and a second sub-circuit for driving the heater. The first sub-circuit includes six first power tubes, and the second sub-circuit includes a plurality of second power tubes, but the two-in-one intelligent power module only integrates the power tubes of the sub-circuits, and the reliability is low. SUMMARY

[0005] The purpose of the present application is to provide a controller, a control method, a control system and a vehicle to at least solve the technical problem of low reliability of the compressor and heater controller in the field of vehicle thermal management in related technologies.

[0006] In order to achieve the above-mentioned purpose, the technical solutions adopted by the present application are as follows:

[0007] According to the first aspect of the present application, a controller is provided, comprising: a processor, a first power supply circuit, a first control circuit and a second control circuit.

[0008] The first control circuit is coupled to the first power supply circuit and the processor, and is further used to couple a heating circuit.

[0009] The second control circuit is coupled to the first power supply circuit and the processor, and is further used to couple a refrigeration circuit.

[0010] The processor is configured to, in response to the received control instruction, convert, by the first control circuit, the first voltage input by the first power supply circuit into a second voltage for driving the heating circuit to work, and / or, in response to the received control instruction, convert, by the second control circuit, the third voltage input by the first power supply circuit into a fourth voltage for driving the refrigeration circuit to work.

[0011] According to the above technical means, the controller integrates the processor, the first power supply circuit, the first control circuit and the second control circuit. By integrating the control functions of the heating circuit and the refrigeration circuit into a single controller, high functional integration is achieved. Compared with the case where the heating circuit and the refrigeration circuit each rely on an independent controller, the number of controllers and the number of hardware components are reduced, the component utilization rate is improved, the communication and interaction between controllers are reduced, the control complexity of the heating circuit and the refrigeration circuit is simplified, the system complexity is effectively reduced, and the overall reliability and cost-effectiveness of the system are improved. At the same time, the centralized control mode greatly facilitates the maintenance and management of the system, and enhances the manageability of the controller. In addition, the processor can flexibly adjust the working state of the heating and refrigeration circuits according to the received control instruction, thereby meeting diversified temperature control requirements, having high adaptability and flexibility, and further enhancing the reliability of the controller.

[0012] In a possible implementation, the first control circuit includes a first driving circuit and a first switching circuit, and the second control circuit includes a second driving circuit and a second switching circuit.

[0013] The first switching circuit is coupled to the first power supply circuit and the first driving circuit respectively, and is further used for coupling the heating circuit.

[0014] The second switching circuit is coupled to the first power supply circuit and the second driving circuit respectively, and is further used for coupling the refrigeration circuit.

[0015] The first driving circuit and the second driving circuit are coupled to the processor respectively.

[0016] According to the above technical means, the controller can flexibly control the heating and refrigeration system through the cooperative work of the first control circuit and the second control circuit, and realize accurate control of the environmental temperature; at the same time, through the setting of the first switching circuit and the second switching circuit, the system can efficiently switch the heating and refrigeration modes according to the instructions of the processor, thereby meeting different temperature control requirements and further improving the reliability of the controller.

[0017] In a possible implementation, the first switching circuit includes at least one insulated gate bipolar transistor (IGBT).

[0018] According to the above technical means, the controller can quickly respond to the instructions of the processor and realize accurate control of the heating process.

[0019] In a possible implementation, the first switching circuit includes at least two cascaded insulated gate bipolar transistors (IGBTs).

[0020] According to the technical means, the controller can effectively control the heating circuit, and the response speed and reliability of the controller are enhanced, so that the heating circuit can be stably and efficiently operated.

[0021] In a possible implementation, the controller further includes a first detection circuit and a second detection circuit.

[0022] The first detection circuit is coupled to the processor, and includes at least one of a first temperature detection circuit, a second temperature detection circuit, or a first driving voltage detection circuit. The first temperature detection circuit is configured to detect the temperature of the first switching circuit, the second temperature detection circuit is configured to detect the temperature of the heating circuit, and the first driving voltage detection circuit is configured to detect the driving voltage of the first switching circuit.

[0023] The second detection circuit is coupled to the processor, and includes at least one of a third temperature detection circuit or a second driving voltage detection circuit. The third temperature detection circuit is configured to detect the temperature of the second switching circuit, and the second driving voltage detection circuit is configured to detect the driving voltage of the second switching circuit.

[0024] According to the technical means, the first detection circuit and the second detection circuit both provide real-time temperature and voltage monitoring data for the processor to analyze and adjust the heating or refrigeration mechanism as needed, so as to ensure the safety and reliability of the controller.

[0025] In a possible implementation, the first power supply circuit includes a first filter circuit and a first connector.

[0026] The first filter circuit is coupled between the first control circuit and the first connector. The first connector is configured to couple the first filter circuit with an external first power supply.

[0027] According to the technical means, the first power supply circuit cooperates with the first filter circuit and the first connector to optimize the quality of the power supply, realize reliable connection with the external first power supply and stable power supply, ensure stable voltage input to the controller, and further enhance the safety and reliability, thereby providing a strong guarantee for the normal operation of the controller.

[0028] In some examples, the first connector is connected to the controller, and the controller is connected to the heater core part. Such a scheme can correspond to a water heating heater and a wind heating heater assembly.

[0029] In a possible implementation, the controller further comprises: a first current sampling circuit and a second current sampling circuit.

[0030] The first current sampling circuit is coupled between the processor and the first switching circuit.

[0031] The second current sampling circuit is coupled between the processor and the second switching circuit.

[0032] According to the above technical means, the first current sampling circuit and the second current sampling circuit provide the controller with key current monitoring capabilities, so that the processor can obtain and analyze current data in real time, enhance the dynamic adjustment capability and protection function of the controller, ensure the safety and efficiency of the heating and refrigeration process, and improve the reliability and safety of the controller, thereby ensuring the stable operation of the entire controller.

[0033] In a possible implementation, a first safety capacitor is coupled between the first filter circuit and the first current sampling circuit; a second safety capacitor is coupled between the first filter circuit and the second current sampling circuit; and a third safety capacitor is coupled between the first filter circuit and the grounding point in the controller.

[0034] A fourth safety capacitor is coupled between the first current sampling circuit and the grounding point in the controller.

[0035] A fifth safety capacitor is coupled between the second current sampling circuit and the grounding point in the controller.

[0036] According to the above technical means, the configuration of multiple safety capacitors effectively reduces power supply noise and signal interference, ensures that the first current sampling circuit and the second current sampling circuit can accurately reflect the actual current state, and can absorb excess current when the voltage exceeds the safety threshold to prevent overvoltage damage to circuit components, thereby enhancing the safety and reliability of the controller.

[0037] In a possible implementation, the controller further comprises: a second power supply circuit. The second power supply circuit is coupled to the processor and is configured to couple the processor to an external second power supply.

[0038] According to the above technical means, the second power supply circuit is coupled to the processor, ensuring that the processor can obtain stable voltage and current from the external second power supply, so that the processor can maintain stable operation in various situations, thereby improving the safety and reliability of the system.

[0039] In a possible implementation, the second power supply circuit comprises a second filter circuit and a second connector. The second filter circuit is coupled between the second connector and the processor.

[0040] According to the above technical means, the quality of the supply voltage of the controller can be improved, damage to the processor caused by voltage spikes or troughs can be avoided, the accuracy of the data and the timeliness of the processor response can be improved, and the reliability of the entire system can be further improved.

[0041] In a possible implementation, the communication circuit is further included. A first end of the communication circuit is coupled to the processor, and a second end of the communication circuit is configured to be coupled to the vehicle-mounted module.

[0042] According to the above technical means, the controller can efficiently collect and process information from various parts of the vehicle, and make corresponding control instructions, and then send the control instructions to the corresponding actuators through the communication circuit, thereby providing support for the complexity and multifunctionality of the vehicle control system through flexible communication and data transmission capabilities.

[0043] In a possible implementation, the communication circuit includes a first communication sub-circuit and a second communication sub-circuit.

[0044] The first end of the first communication sub-circuit and the first end of the second communication sub-circuit are respectively coupled to the processor.

[0045] The second end of the first communication sub-circuit and the second end of the second communication sub-circuit are respectively configured to be coupled to the vehicle-mounted module.

[0046] According to the above technical means, by simultaneously configuring two communication sub-circuits, the system can simultaneously process multiple signals from the vehicle-mounted module, improve the bandwidth and efficiency of data transmission, and ensure the continuous communication capability of the system. In the event of a failure of one of the communication sub-circuits, the other sub-circuit can immediately take over, thereby providing a powerful communication interface for the controller and ensuring that the processor can effectively communicate with the vehicle-mounted module in both directions. This redundant and flexible structure improves the reliability and response speed of the controller.

[0047] In a possible implementation, the first communication sub-circuit is a LIN communication circuit, and the second communication sub-circuit is a CAN communication circuit.

[0048] According to the above technical means, the controller can effectively meet the communication needs of different levels of the vehicle-mounted system. LIN supports simple and cost-effective control tasks, while CAN ensures communication between high-speed and high-reliability key components, thereby improving the flexibility of the controller communication.

[0049] According to a second aspect of the present application, a control method is provided. The control method includes:

[0050] In response to the received control instruction, the first voltage input by the first power supply circuit is converted into a second voltage for driving the heating circuit to work by the first control circuit. And / or,

[0051] In response to the received control instruction, the third voltage input by the first power supply circuit is converted into a fourth voltage for driving the refrigeration circuit to work by the second control circuit.

[0052] According to the above technical means, the heating circuit and the refrigeration circuit can be controlled.

[0053] According to a third aspect of the present application, a control system is provided. The control system comprises a heating circuit, a refrigeration circuit and a controller according to any one of the possible implementation manners described above. The controller is coupled to the heating circuit and the refrigeration circuit respectively.

[0054] According to the above technical means, the heating circuit is activated to provide heat when the temperature of the vehicle environment is lower than the set value, so as to increase the temperature of the environment. The refrigeration circuit is activated to absorb or transfer heat when the temperature of the vehicle environment is higher than the set value, so as to decrease the temperature of the environment. The controller controls the temperature accurately and keeps the temperature stable, so as to realize the temperature regulation of the vehicle.

[0055] In a possible implementation manner, the controller comprises a housing and an integrated substrate, and the integrated substrate is coupled to the heating circuit and the refrigeration circuit respectively.

[0056] According to the above technical means, the controller can operate efficiently, stably and safely.

[0057] In a possible implementation manner, the control system comprises a heater and a compressor, the heater comprises the heating circuit, and the compressor comprises the refrigeration circuit. The heat dissipation structure and the first switching circuit are arranged on the same surface of the housing, and the second switching circuit is arranged on the heat dissipation surface of the compressor.

[0058] According to the above technical means, the heat dissipation structure is arranged on the same surface of the housing of the controller, and the heat dissipation structure is used to dissipate the heat generated by the controller. The first switching circuit is also arranged on the heat dissipation structure, and the first switching circuit does not overheat when the heater operates independently. The second switching circuit is arranged on the heat dissipation surface of the compressor, so as to realize effective heat management and power control, and help to ensure that the heater and the compressor operate efficiently while maintaining a safe and stable working state.

[0059] According to a fourth aspect of the present application, a vehicle is provided. The vehicle comprises a vehicle-mounted module and a control system according to any one of the possible implementation manners described above. The vehicle-mounted module is coupled to the control system.

[0060] According to the above technical means, the vehicle-mounted module and the control system work together to ensure the safe, reliable and efficient operation of the vehicle, and the beneficial effects of the present application are achieved.

[0061] (1) The application provides a controller, which integrates a processor, a first power supply circuit, a first control circuit and a second control circuit. By integrating the control functions of the heating circuit and the refrigeration circuit into a single controller, high functional integration is achieved. Compared with the case where the heating circuit and the refrigeration circuit each rely on an independent controller, the number of controllers and the number of hardware components are reduced, the component utilization rate is improved, the communication and interaction between controllers are reduced, the control complexity of the heating circuit and the refrigeration circuit is simplified, the system complexity is effectively reduced, and the overall reliability and cost-effectiveness of the system are improved. At the same time, the centralized control mode greatly facilitates the maintenance and management of the system, and enhances the manageability of the controller. In addition, the processor can flexibly adjust the working state of the heating and refrigeration circuits according to the received control instructions, thereby meeting diversified temperature control requirements, having high adaptability and flexibility, and further enhancing the reliability of the controller.

[0062] (2) The application can control higher power or voltage by cascading connection of multiple IGBTs, so that the first switching circuit can operate at a voltage higher than the rated voltage of a single IGBT. Moreover, two or more IGBTs can be connected in series to improve the withstand voltage and reduce the risk of short-circuit failure (e.g., simultaneous short-circuit failure of two IGBTs), thereby improving the reliability of the entire controller, effectively improving the controller's control over the heating circuit, enhancing the controller's response speed and reliability, and ensuring that the heating circuit can operate stably and efficiently.

[0063] (3) The controller provided by the application can control multiple specifications of compressors and heaters in terms of platformization. In terms of performance, the controller transfers the cost of integrated (or shared) parts to important or critical electrical components, improving the performance and reliability of such electrical components and eliminating communication barriers. In terms of quality, the controller transfers the cost of integrated (or shared) parts to important or critical characteristics, performs certain redundancy design, reduces failure modes, and improves quality performance. In terms of cost, the controller simplifies the system principle and wire harness principle of the entire vehicle, reducing the cost of the entire vehicle.

[0064] It should be noted that the technical effects brought by the second aspect implementation mode can be referred to the technical effects brought by the corresponding implementation mode in the first aspect, which will not be repeated here.

[0065] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0066] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the specification, serve to explain the principles of the application, and do not constitute an undue limitation on the application.

[0067] Figure 1 A vehicle control schematic diagram shown as an example embodiment of the present application;

[0068] Figure 2 A controller schematic diagram shown as an example embodiment of the present application;

[0069] Figure 3 A controller schematic diagram shown as another example embodiment of the present application;

[0070] Figure 4 A controller schematic diagram shown as another example embodiment of the present application;

[0071] Figure 5 A controller schematic diagram shown as another example embodiment of the present application;

[0072] Figure 6 A controller schematic diagram shown as another example embodiment of the present application;

[0073] Figure 7 A controller schematic diagram shown as another example embodiment of the present application;

[0074] Figure 8 A controller structural diagram shown as an example embodiment of the present application;

[0075] Figure 9 A controller flow diagram shown as an example embodiment of the present application;

[0076] Figure 10 A controller flow diagram shown as another example embodiment of the present application;

[0077] Figure 11 A control method flow diagram shown as an example embodiment of the present application.

[0078] In the figure, 1 - the first power supply circuit, 11 - the first filter circuit, 12 - the first connector, 2 - the second power supply circuit, 21 - the second filter circuit, 2 - the second connector, 3 - the first control circuit, 31 - the first drive circuit, 32 - the first switch circuit, 4 - the second control circuit, 41 - the second drive circuit, 42 - the second switch circuit, 5 - the processor, 6 - the heater, 61 - the heating circuit, 7 - the compressor, 71 - the refrigeration circuit, 72 - the heat dissipation surface, 8 - the first detection circuit, 9 - the second detection circuit, 81 - the first current sampling circuit, 91 - the second current sampling circuit, X1 - the first safety capacitor, Y1 - the third safety capacitor, Y2 - the fourth safety capacitor, 10 - the communication circuit, 101 - the first communication sub-circuit, 102 - the second communication sub-circuit, 100 - the controller, 110 - the shell, 120 - the heat dissipation structure, 200 - the vehicle-mounted module, 300 - the control system. DETAILED DESCRIPTION

[0079] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings.

[0080] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0081] It should be noted that, for example, 11-1 in the drawings of the present disclosure indicates that the component 11 belongs to the component 1, for example, the component 31-3 in the drawings indicates that the first drive circuit belongs to the first control circuit, and other similar designations appearing in the drawings also follow the above description. Figure 9

[0082] The embodiments of the present application provide a vehicle 1000. As shown in the figure, the vehicle 1000 comprises a vehicle-mounted module 200 and a control system 300. The vehicle-mounted module 200 is coupled with the control system 300. Figure 1 As can be understood, the vehicle-mounted module 200 is a general term for various electronic devices and systems installed on the vehicle 1000, and the vehicle-mounted module 200 is responsible for collecting vehicle 1000 operation data, executing control instructions, and providing information and entertainment functions required by the driver and passengers.

[0083] As can be understood, the vehicle-mounted module 200 is a general term for various electronic devices and systems installed on the vehicle 1000, and the vehicle-mounted module 200 is responsible for collecting vehicle 1000 operation data, executing control instructions, and providing information and entertainment functions required by the driver and passengers.

[0084] ​For example, the vehicle module 200 can be a vehicle controller.

[0085] The control system 300 is the core part of the vehicle 1000 responsible for processing data, making decisions, and controlling the operation of the vehicle modules 200. It is a combination of one or more electronic control units (ECUs) that receive sensor data from the vehicle modules 200, perform real-time processing and analysis, and then issue control instructions based on pre-set algorithms and logic. The control system 300 is also responsible for coordinating the work between various vehicle modules 200 to ensure that they can work together to achieve the overall performance and functionality of the vehicle 1000.

[0086] The coupling between the vehicle modules 200 and the control system 300 is usually achieved through electrical connections, including wires, buses (such as CAN bus, LIN bus, etc.), and wireless communication methods (such as Bluetooth, Wi-Fi, etc., although wireless communication in the vehicle system is mainly used for non-critical data transmission).

[0087] The purpose of coupling is to ensure that the control system 300 can accurately receive sensor data from the vehicle modules 200 and send control instructions to these modules.

[0088] Therefore, the vehicle modules 200 and the control system 300 in the vehicle 1000 are two parts that depend on each other and are tightly coupled. The vehicle modules 200 and the control system 300 work together to ensure the safe, reliable, and efficient operation of the vehicle 1000.

[0089] Embodiments of the present application also provide a control system 300. As shown in Figure 1 The control system 300 includes a heating circuit 61, a refrigeration circuit 71, and a controller 100. The controller 100 is coupled to the heating circuit 61 and the refrigeration circuit 71, respectively.

[0090] The heating circuit is activated to provide heat when the temperature of the vehicle environment is lower than the set value, thereby increasing the temperature of the environment.

[0091] The refrigeration circuit 71 is activated to absorb or transfer heat when the temperature of the vehicle environment is higher than the set value, thereby reducing the temperature of the environment.

[0092] The controller 100 is responsible for receiving signals from the temperature sensor and determining whether to activate the heating circuit or the refrigeration circuit 71, or keep both closed, according to the comparison results of these signals with the preset temperature value. The controller 100 continuously monitors the current temperature of the system or the environment. When the current temperature is lower than the set value, the controller 100 sends a signal to activate the heating circuit until the temperature reaches or exceeds the set value. When the current temperature is higher than the set value, the controller 100 sends a signal to activate the refrigeration circuit 71 until the temperature decreases below the set value. If the temperature is within the allowed range of the set value, the controller 100 will keep the heating circuit and the refrigeration circuit 71 closed to save energy. By precisely controlling the temperature and keeping it stable, the temperature regulation of the vehicle 1000 is achieved.

[0093] In some embodiments, the controller 100 includes a housing 110 and an integrated substrate coupled to the heating circuit 61 and the refrigeration circuit 71, respectively.

[0094] The housing 110 is the external structure of the controller 100, mainly serving the purpose of protection and support.

[0095] For example, the housing 110 is made of materials with good insulation, heat resistance, fire resistance, etc., to ensure the safety and stability of the controller 100 during operation.

[0096] The integrated substrate is the core component of the controller 100, carrying the main functions of the circuit. The integrated substrate integrates circuit elements, connection lines, etc. through a specific process, forming a compact and efficient circuit structure. In this description, the integrated substrate is coupled to the heating circuit and the refrigeration circuit 71, respectively, and can control the working state of the heating circuit and the refrigeration circuit 71 as needed.

[0097] Through the above settings, the controller 100 can have efficient, stable, and safe operation.

[0098] In some embodiments, the control system 300 includes a heater 6 and a compressor 7. The heater 6 includes a heating circuit 61, and the compressor 7 includes a refrigeration circuit 71.

[0099] The heater 6 is used for heating, and the heater 6 contains the heating circuit 61 inside. The heating circuit 61 is the core of the heater 6, responsible for generating heat.

[0100] The compressor 7 contains the refrigeration circuit 71 inside, which drives the compressor 7 to work, and the refrigeration circuit 71 is responsible for driving the compressor 7, thereby realizing the function of refrigeration or gas compression.

[0101] In a traditional air conditioning system, the compressor 7 and the heater 6 usually work independently. The compressor 7 is mainly responsible for the refrigeration cycle, reducing the temperature in the vehicle by compressing the refrigerant, while the heater 6 is used for heating, generating heat by consuming electricity to increase the temperature in the vehicle. The compressor 7 and the heater 6 are also often independent in control, each having independent control logic and sensor systems, which increases the complexity of the entire thermal management system and reduces reliability.

[0102] However, in a heat pump system, the working conditions of the compressor 7 and the heater 6 are increased. The heat pump system is an efficient heating / cooling system that can achieve both refrigeration and heating functions by changing the circulation direction of the refrigerant. In heating mode, the compressor 7 still plays a role in compressing the refrigerant, but at this time the direction of the refrigerant circulation is opposite to that in cooling mode, so as to absorb the heat from the outside and release it into the vehicle. In some working conditions, in order to further improve the heating efficiency or meet the specific heating requirements, the heater 6 will work simultaneously with the compressor 7 to provide additional heat.

[0103] In the controller 100 part, although the control logic and algorithm of the compressor 7 and the heater 6 are different, they do have some similarities to some extent. For example, both of them need accurate temperature control and sensor feedback to achieve efficient energy conversion and regulation. In addition, with the development of automobile intelligence, the controller 100 is also increasingly integrated and networked in order to realize more complex thermal management strategies and fault diagnosis functions.

[0104] Based on this, the present application provides a controller 100, as shown in the figure, comprising a processor 5, a first power supply circuit 1, a first control circuit 3 and a second control circuit 4. Figure 2 The first control circuit 3 is coupled to the first power supply circuit 1 and the processor 5, and is also used for coupling the heating circuit 61.

[0105] The second control circuit 4 is coupled to the first power supply circuit 1 and the processor 5, and is also used for coupling the refrigeration circuit 71.

[0106] The second control circuit 4 is coupled to the first power supply circuit 1 and the processor 5, and is also used for coupling the refrigeration circuit 71.

[0107] The processor 5 is configured to: in response to the received control instruction, convert the first voltage input by the first power supply circuit 1 into a second voltage for driving the heating circuit 61 to work through the first control circuit 3, and / or in response to the received control instruction, convert the third voltage input by the first power supply circuit 1 into a fourth voltage for driving the refrigeration circuit 71 to work through the second control circuit 4.

[0108] The processor 5 is a core component of the controller 100, responsible for receiving, analyzing and executing control instructions. According to the instructions, the voltage is adjusted by the first control circuit 3 or the second control circuit 4 to drive the heating circuit 61 or the refrigeration circuit 71.

[0109] The first power supply circuit 1 provides power supply for the controller 100, provides stable power input, provides power for the entire controller 100 and the connected circuits, and converts voltage for the heating and refrigeration circuit 71.

[0110] For example, the first power supply circuit 1 can be a high-voltage power supply loop.

[0111] According to the instructions of the processor 5, the first control circuit 3 is responsible for converting the input first voltage into a second voltage suitable for the operation of the heating circuit 61, so that the heating circuit 61 can operate at an appropriate voltage.

[0112] According to the instructions of the processor 5, the second control circuit 4 is responsible for converting the input third voltage into a fourth voltage suitable for the operation of the refrigeration circuit 71, to meet the operation requirements of the refrigeration circuit 71.

[0113] For example, the processor 5 can be a main chip (MCU).

[0114] Through the above arrangement, compared with the case where the compressor 7 and the heater 6 have independent controllers 100, the number of controllers 100 is reduced, the utilization rate of components is improved, and the communication and interaction between the controllers 100 are reduced. Moreover, the controller 100 of the present application integrates the processor 5, the first power supply circuit 1, the first control circuit 3 and the second control circuit 4, realizes high degree of functional integration, and can adjust the working state of the heating and refrigeration circuit 71 according to the received control instructions. The processor 5 can flexibly control the working state of the heating and refrigeration circuit 71, so that the controller 100 can meet different temperature control requirements and improve the reliability of the controller 100. Moreover, through the reasonable configuration of the control circuit and the processor 5, the function of the controller 100 can be expanded, and the reliability of the controller 100 can be further improved. Moreover, the control strategy can be flexibly adjusted according to different requirements, which is suitable for various control scenes.

[0115] In some embodiments, as shown in Figures 3-4 The first control circuit 3 includes a first drive circuit 31 and a first switch circuit 32. The second control circuit 4 includes a second drive circuit 41 and a second switch circuit 42.

[0116] As shown in Figure 3 The first switch circuit 32 is coupled to the first power supply circuit 1 and the first drive circuit 31, and is also used to couple the heating circuit 61.

[0117] As shown in Figure 4The second switch circuit 42 is coupled to the first power supply circuit 1 and the second drive circuit 41 respectively, and is also used for coupling the refrigeration circuit 71.

[0118] The first drive circuit 31 and the second drive circuit 41 are coupled to the processor 5 respectively.

[0119] For example, the first drive circuit 31 and the second drive circuit 41 can be IGBT drives.

[0120] It can be understood that the first drive circuit 31 in the first control circuit 3 is responsible for controlling the opening and closing of the first switch circuit 32, thereby controlling the on-off of the heating circuit 61. The first switch circuit 32 is connected between the first power supply circuit 1 and the first drive circuit 31, and is also connected with the heating circuit 61, that is, when the first drive circuit 31 issues an instruction, the first switch circuit 32 will be opened or closed, thereby allowing or preventing current to pass through the heating circuit 61.

[0121] The second drive circuit 41 of the second control circuit 4 is responsible for controlling the opening and closing of the second switch circuit 42, thereby controlling the on-off of the refrigeration circuit 71. The second switch circuit 42 is connected between the first power supply circuit 1 and the second drive circuit 41, and is also connected with the refrigeration circuit 71, that is, when the second drive circuit 41 issues an instruction, the second switch circuit 42 will be opened or closed, thereby allowing or preventing current to pass through the refrigeration circuit 71.

[0122] That is, when the processor 5 detects that the ambient temperature is lower than the set value, it will issue an instruction to the first drive circuit 31 to activate the first switch circuit 32, thereby allowing current to pass through the heating circuit 61 to increase the ambient temperature. Conversely, when the processor 5 detects that the ambient temperature is higher than the set value, it will issue an instruction to the second drive circuit 41 to activate the second switch circuit 42, thereby allowing current to pass through the refrigeration circuit 71 to reduce the ambient temperature.

[0123] Through the above setting, the controller 100 can flexibly control the heating and refrigeration system through the cooperative work of the first control circuit 3 and the second control circuit 4, and realize accurate control of the ambient temperature; at the same time, through the setting of the first switch circuit 32 and the second switch circuit 42, the system can efficiently switch the heating and refrigeration modes according to the instruction of the processor 5, thereby meeting different temperature control requirements, and further improving the reliability of the controller 100.

[0124] In some embodiments, the first switch circuit 32 includes at least one insulated gate bipolar transistor IGBT.

[0125] It can be understood that the main function of the first switching circuit 32 is to control the on-off of the current to realize the control of the heating circuit 61, which can quickly switch the state of the heating circuit 61 according to the instruction of the processor 5. The IGBT as a component connecting the battery and the heating circuit 61 can accurately control the switching of the current, ensure that the heating circuit 61 obtains the appropriate current when needed, effectively control the switching of high voltage and large current, and be suitable for driving the heating circuit 61. Using IGBT can improve the efficiency of the switching circuit and reduce energy loss, while it can withstand higher voltage and current to ensure the stable operation of the heating circuit 61. Moreover, the fast switching characteristics of IGBT make the heating process more accurate, which helps to achieve better temperature control. Therefore, the above settings enable the controller 100 to quickly respond to the instructions of the processor 5 and realize accurate control of the heating process.

[0126] In some embodiments, the first switching circuit 32 includes at least two cascaded insulated gate bipolar transistors IGBTs.

[0127] It can be understood that by cascading multiple IGBTs, higher power or voltage control can be achieved, so that the first switching circuit 32 can operate at a voltage higher than the rated voltage of a single IGBT. Moreover, two or more IGBTs can work in series to improve the withstand voltage and reduce the risk of short-circuit failure (e.g., simultaneous short-circuit failure of two IGBTs), thereby improving the reliability of the entire controller 100 and meeting the needs of multi-temperature zones of the whole vehicle (as shown in FIG. 1). Figure 5 Therefore, through the above settings, the controller 100 can effectively improve the control of the heating circuit 61, enhance the response speed and reliability of the controller 100, and ensure that the heating circuit 61 can operate stably and efficiently.

[0128] In some embodiments, as shown in FIG. 1, Figure 5 The controller 100 further includes a first detection circuit 8 and a second detection circuit 9.

[0129] The first detection circuit 8 is coupled to the processor 5. The first detection circuit 8 includes at least one of a first temperature detection circuit, a second temperature detection circuit, or a first driving voltage detection circuit. The first temperature detection circuit is used to detect the temperature of the first switching circuit 32, the second temperature detection circuit is used to detect the temperature of the heating circuit 61, and the first driving voltage detection circuit is used to detect the driving voltage of the first switching circuit 32.

[0130] The second detection circuit 9 is coupled to the processor 5. The second detection circuit 9 includes at least one of a third temperature detection circuit or a second drive voltage detection circuit. The third temperature detection circuit is used to detect the temperature of the second switching circuit 42, and the second drive voltage detection circuit is used to detect the drive voltage of the second switching circuit 42.

[0131] It can be understood that the first detection circuit 8 is coupled to the processor 5, so that the processor 5 can obtain the detected temperature and voltage information in real time and make corresponding control adjustments. Among them, the first temperature detection circuit is used to detect the temperature of the first switching circuit 32. The excessively high temperature may cause IGBT or circuit failure, which can ensure the safe and stable operation of the first switching circuit 32. The second temperature detection circuit is used to detect the temperature of the heating circuit 61, to ensure that the heating process does not exceed the safe working temperature, and at the same time, the heating intensity can be adjusted to meet different needs. The first drive voltage detection circuit is used to monitor the drive voltage of the first switching circuit 32, to ensure that the IGBT works in a reasonable voltage range, thereby improving the efficiency and reducing the risk of damage.

[0132] The second detection circuit 9 is coupled to the processor 5, to ensure the normal operation of the refrigeration system. Among them, the third temperature detection circuit is used to detect the temperature of the second switching circuit 42, to ensure that the refrigeration system operates within a safe temperature range and prevents equipment failure. The second drive voltage detection circuit is used to monitor the drive voltage of the second switching circuit 42, to keep the system in an optimal working state.

[0133] Therefore, through the above-mentioned settings of the first detection circuit 8 and the second detection circuit 9, real-time temperature and voltage monitoring data are provided for the processor 5 to analyze and adjust the heating or refrigeration mechanism as needed, to ensure the safety and reliability of the controller 100.

[0134] In some embodiments, as shown in FIG. 1, the first power supply circuit 1 includes a first filter circuit 11 and a first connector 12. Figure 5 The first filter circuit 11 is coupled between the first control circuit 3 and the first connector 12. The first connector 12 is used to couple the first filter circuit 11 with an external first power supply.

[0135]

[0136] ​It can be understood that the first power supply circuit 1 is mainly composed of two parts of the first filter circuit 11 and the first connector 12. Among them, the first filter circuit 11 is located between the first control circuit 3 and the first connector 12, and plays a role of filtering the power supply to ensure the stability and reliability of the power supply. By filtering out the noise and interference in the power supply, the first filter circuit 11 can effectively protect the subsequent circuit from damage and improve the performance of the entire system. The first connector 12 transmits the filtered power signal to the external device, and also provides a way for the external device to access the system power supply. The first connector 12 can ensure the safety and stability of the power connection through the convenience of plugging and the reliability of contact.

[0137] Therefore, through the cooperative work of the first filter circuit 11 and the first connector 12 of the first power supply circuit 1, the quality of the power supply is optimized, the reliable connection and stable power supply with the external first power supply are realized, the stable voltage input to the controller 100 is ensured, and the safety and reliability are also enhanced, which provides a strong guarantee for the normal operation of the controller 100.

[0138] In some embodiments, as shown in Figure 5 The controller 100 further includes a first current sampling circuit 81 and a second current sampling circuit 91.

[0139] The first current sampling circuit 81 is coupled between the processor 5 and the first switch circuit 32.

[0140] The second current sampling circuit 91 is coupled between the processor 5 and the second switch circuit 42.

[0141] It can be understood that the first current sampling circuit 81 is located between the processor 5 and the first switch circuit 32, so that the processor 5 can monitor the current condition of the first switch circuit 32 in real time and feed back the current value to the processor 5. The processor 5 can adjust the running state of the first switch circuit 32 according to the sampled current data, such as automatically reducing the load or cutting off the circuit when the current exceeds the preset value, to prevent overload or damage.

[0142] The second current sampling circuit 91 is also located between the processor 5 and the second switch circuit 42, so that the processor 5 can monitor the current condition of the second switch circuit 42 in real time and feed back the current value to the processor 5. The processor 5 can optimize the working state of the refrigeration circuit 71 according to the sampled current data, such as timely adjusting the refrigeration power or switch state when the current changes, to ensure the safe and efficient operation of the refrigeration circuit 71.

[0143] Through the above settings, the first current sampling circuit 81 and the second current sampling circuit 91 provide the controller 100 with key current monitoring capabilities, enabling the processor 5 to acquire and analyze current data in real time, enhancing the dynamic adjustment capability and protection function of the controller 100, ensuring the safety and efficiency of the heating and cooling process, improving the reliability and safety of the controller 100, and thus ensuring the stable operation of the entire controller 100.

[0144] In some embodiments, a first safety capacitor X1 is coupled between the first filter circuit 11 and the first current sampling circuit 81. A second safety capacitor X2 is coupled between the first filter circuit 11 and the second current sampling circuit 91. A third safety capacitor Y1 is coupled between the first filter circuit 11 and the grounding point in the controller 100.

[0145] A fourth safety capacitor Y2 is coupled between the first current sampling circuit 81 and the grounding point in the controller 100.

[0146] The second current sampling circuit 91 is coupled to the grounding point in the controller 100 by a fifth safety capacitor Y3.

[0147] For example, the first safety capacitor X1, the second safety capacitor X2, the third safety capacitor Y1, the fourth safety capacitor Y2, and the fifth safety capacitor Y3 can be film capacitors, which have good high temperature resistance.

[0148] For example, the first safety capacitor X1 and the second safety capacitor X2 can be X capacitors.

[0149] For example, the third safety capacitor Y1, the fourth safety capacitor Y2, and the fifth safety capacitor Y3 can be Y capacitors.

[0150] For example, such as Figure 7 As shown, when the controller 100 includes a cooling circuit 71, a first safety capacitor X1 is coupled between the first filter circuit 11 and the first current sampling circuit 81. A third safety capacitor Y1 is coupled between the first filter circuit 11 and the grounding point in the controller 100. A fourth safety capacitor Y2 is coupled between the first current sampling circuit 81 and the grounding point in the controller 100.

[0151] It can be understood that the first safety capacitor X1 provides stable power input for the first current sampling circuit 81, and also plays a role in isolation and improving anti-interference ability, ensuring the accuracy of current sampling. The second safety capacitor X2 can stabilize the power supply and prevent unnecessary signal interference, ensuring the reliability of the current information received by the processor 5. The third safety capacitor Y1 provides ground protection for the first filter circuit 11, ensuring the electrical safety of the system, and also helps to reduce the influence of noise on the first filter circuit 11, improving stability. The fourth safety capacitor Y2 plays a role in filtering and stabilizing the first current sampling signal, and also ensures that the first current sampling circuit 81 is safely grounded, reducing current measurement errors caused by ground loops. The fifth safety capacitor Y3 can ensure that the signal of the second current sampling circuit 91 is stable and safe, so that the controller 100 can resist the fluctuations and interference of the first power supply loop 1 of the whole vehicle, mainly for the battery pulse heating function, thereby improving the monitoring accuracy and reliability of the whole controller 100, and realizing platform development.

[0152] Therefore, through the above arrangement, the configuration of multiple safety capacitors effectively reduces power supply noise and signal interference, ensuring that the first current sampling circuit 81 and the second current sampling circuit 91 can accurately reflect the actual current state; It can also absorb excess current when the voltage exceeds the safety threshold, to prevent overvoltage damage to circuit components, enhancing the safety and reliability of the controller 100.

[0153] In some embodiments, as shown in Figures 1-4 The controller 100 further includes a second power supply circuit 2. The second power supply circuit 2 is coupled to the processor 5 for coupling the processor 5 to an external second power supply.

[0154] For example, the second power supply circuit 2 can be a low-voltage power supply loop.

[0155] It can be understood that the second power supply circuit 2 is coupled to the processor 5, ensuring that the processor 5 can obtain stable voltage and current from the external second power supply, allowing the processor 5 to operate stably in various situations and improving the safety and reliability of the system.

[0156] In some embodiments, as shown in Figure 4 The second power supply circuit 2 includes a second filter circuit 21 and a second connector 22. The second filter circuit 21 is coupled between the second connector 22 and the processor 5.

[0157] It can be understood that the second filter circuit 21 has good filtering characteristics, can effectively reduce the noise introduced by the external power supply, can filter the received power supply voltage, smooth the output voltage, reduce the noise and interference in the power supply voltage, ensure that the processor 5 obtains stable power supply, help to protect the processor 5 from power fluctuations, and enhance the anti-interference ability of the system. The second connector 22 is used to connect the external second power supply to the second filter circuit 21, which ensures the safety of the power supply when connecting and disconnecting, helps to reduce the damage of the equipment caused by improper operation, and ensures the reliable input of the power supply.

[0158] Therefore, through the above setting, the quality of the power supply voltage of the controller 100 can be improved, the damage to the processor 5 caused by voltage peaks or troughs can be avoided, the accuracy of the data and the timeliness of the processor 5 response can be improved, and the reliability of the entire system is further improved.

[0159] In some embodiments, the controller 100 further comprises a communication circuit 10. The first end of the communication circuit 10 is coupled to the processor 5, and the second end of the communication circuit 10 is used to couple the vehicle-mounted module 200.

[0160] It can be understood that the communication circuit 10 is a bridge for the controller 100 and the vehicle-mounted module 200 to exchange information, can receive input data of the vehicle-mounted module 200, and send output data of the processor 5 to the vehicle-mounted module 200. Part of the communication circuit 10 is directly connected to the processor 5, so that the processor 5 can send and receive data through the communication circuit 10. Such connection is usually realized through an internal bus or a special interface. The other part of the communication circuit 10 is connected with the interface of the external vehicle-mounted module 200, so that the communication circuit 10 communicates with the vehicle-mounted module 200.

[0161] Through the above setting, the controller 100 can efficiently collect and process information from each part of the vehicle 1000, and make corresponding control instructions, and then send the control instructions to the corresponding actuators through the communication circuit 10, which provides support for the complexity and multifunctionality of the vehicle 1000 control system 300 through flexible communication and data transmission capabilities.

[0162] In some embodiments, as shown in Figure 4 The communication circuit 10 comprises a first communication sub-circuit 101 and a second communication sub-circuit 102.

[0163] The first end of the first communication sub-circuit 101 and the first end of the second communication sub-circuit 102 are respectively coupled to the processor 5.

[0164] The second end of the first communication sub-circuit 101 and the second end of the second communication sub-circuit 102 are respectively used to couple the vehicle-mounted module 200.

[0165] It can be understood that the first end of the first communication sub-circuit 101 is coupled to the processor 5, so that the processor 5 can communicate with external devices through the first communication sub-circuit 101. The second end of the first communication sub-circuit 101 is used to be coupled to the vehicle-mounted module 200 to realize data transmission and reception. The first end of the second communication sub-circuit 102 is coupled to the processor 5, which is parallel to the first communication sub-circuit 101 and provides another communication path for the processor 5. The second end of the second communication sub-circuit 102 is coupled to the vehicle-mounted module 200 and can interact with other components of the vehicle-mounted system.

[0166] By configuring two communication sub-circuits as described above, the system can simultaneously process multiple signals from the vehicle-mounted module 200, improving the bandwidth and efficiency of data transmission. If one communication sub-circuit fails, the other sub-circuit can immediately take over to ensure the continuous communication ability of the system, providing a powerful communication interface for the controller 100 and ensuring that the processor 5 can effectively communicate with the vehicle-mounted module 200. This redundant and flexible structure improves the reliability and response speed of the controller 100.

[0167] In some embodiments, the first communication sub-circuit 101 is a LIN communication circuit 10, and the second communication sub-circuit 102 is a CAN communication circuit 10.

[0168] It can be understood that the first communication sub-circuit 101 is a LIN (Local Interconnect Network) communication circuit 10. The LIN network usually adopts a master-slave structure, where the master device is responsible for scheduling, and the slave devices on the bus perform data transmission according to the instructions of the master device. The LIN circuit design is relatively simple, and the required hardware cost is lower. The single-master structure makes network design and implementation easy, and is suitable for control tasks with low communication frequency and no high-speed response requirements.

[0169] The second communication sub-circuit 102 is designed as a CAN (Controller Area Network) communication circuit. CAN communication adopts a multi-master structure, and each node can communicate with each other without the need for scheduling by the master node. The CAN protocol supports a priority mechanism to ensure that high-priority messages can be transmitted in a timely manner, making it suitable for critical applications that require timely response. In addition, the CAN network has a powerful error detection mechanism that can isolate problem nodes when errors occur, ensuring the stability of the overall system.

[0170] Through the above settings, the controller 100 can effectively meet the communication needs of different levels of the vehicle-mounted system. LIN supports simple and cost-effective control tasks, while CAN ensures communication between high-speed and high-reliability critical components, thereby improving the flexibility of the controller 100 communication.

[0171] Moreover, the communication circuit 10 is compatible with CAN and LIN, ensuring the platform development of the controller 100, and the communication of the compressor 7-controller 100-heater 6 is simplified to the communication mode of the integrated controller of the two, reducing the communication cycle and the communication loop, and eliminating the technical barriers caused by the long communication cycle of two independent controllers in the non-integrated scheme, which is beneficial to the control and development of more complex thermal management systems; at the same time, the lines connected with the controller 100 and the compressor 7 and the heater 6 are simplified to the connection lines in the controller 100, the number of nodes is reduced, and the reliability is improved.

[0172] For the above-mentioned controller 100, the control principle of the compressor 7 of the present application is that when the first power supply circuit 1, the second power supply circuit 2, the vehicle-mounted module 200, the controller 100, the compressor 7 and the heater 6 are connected, the controller 100 receives the signals of the vehicle-mounted module 200 and the second detection circuit 9, and then controls the second drive circuit 41 through logical operation to realize the control of the second control circuit 4, thereby realizing the control of the compressor 7. Figure 10 In the figure, the loop related to the communication circuit 10 is connected by dotted lines, and the second control circuit 4 is connected by thick solid lines.

[0173] For the above-mentioned controller 100, the control principle of the heater 6 of the present application is that when the first power supply circuit 1, the second power supply circuit 2, the vehicle-mounted module 200, the controller 100, the compressor 7 and the heater 6 are connected, the controller 100 receives the signals of the vehicle-mounted module 200 and the first detection circuit 8, and then controls the first drive circuit 31 through logical operation to realize the control of the first control circuit 3, thereby realizing the control of the heater 6. Figure 9 In the figure, the loop related to the communication circuit 10 is connected by dotted lines, and the first control circuit 3 is connected by thick solid lines. As shown in the figure, after using the integrated scheme, the heater is only a core structure, which realizes the functions of control, communication and heating by being connected with the controller 100; the core structure has a shorter development difficulty and development cycle, and this integrated scheme can better meet the requirements of short cycle and multiple configurations of the whole vehicle. Figure 6

[0174] Based on the above, the control process of the controller 100 of the present application has three kinds:

[0175] ​I. Independent control of compressor 7, the first power supply circuit 1, the second power supply circuit 2 are connected respectively, the communication circuit 10 (CAN or LIN) is connected with the upper vehicle-mounted module 200 and the communication is correct, according to the signal of the second detection circuit 9 and the communication circuit 10, the processor 5 controls the second drive circuit 41 related to the compressor 7, realizes the operation of the compressor 7 in the refrigeration system. That is, receiving the request signal of the independent operation of the compressor 7, according to the control specification, the operation control and monitoring of the product are carried out.

[0176] II. Independent control of heater 6, the first power supply circuit 1, the second power supply circuit 2 are connected respectively, the communication circuit 10 (CAN or LIN) is connected with the upper vehicle-mounted module 200 and the communication is correct, according to the signal of the first detection circuit 8 and the communication circuit 10, the processor 5 controls the first drive circuit 31 related to the heater 6, realizes the heat conversion of the heater 6 assembly. That is, receiving the request signal of the independent operation of the heater 6, according to the control specification, the operation control and monitoring of the product are carried out.

[0177] III. Simultaneous control of compressor 7 and heater 6, the first power supply circuit 1, the second power supply circuit 2 are connected respectively, the communication circuit 10 (CAN or LIN) is connected with the upper vehicle-mounted module 200 and the communication is correct, according to the signal of the first detection circuit 8, the second detection circuit 9 and the communication circuit 10, the processor 5 controls the first drive circuit 31 related to the heater 6 and the second drive circuit 41 related to the compressor 7, realizes the simultaneous operation of the compressor 7 and the heater 6. That is, receiving the request signal of the operation of the heater 6 and the compressor 7 at the same time, according to the control specification, the operation control and monitoring of the product are carried out.

[0178] Through the above, the communication, control, signal acquisition and other functions of the compressor 7 and the heater 6 can be realized in the software or application layer, and the modular development and matching are carried out according to the demand of the thermal management system.

[0179] Therefore, in terms of platformization, the controller 100 can realize the control of compressors 7 and heaters 6 of multiple specifications; in terms of performance, the controller 100 transfers the cost of the integrated (or shared) part to important or critical electrical components, improves the performance and reliability of such electrical components, and eliminates communication barriers; in terms of quality, the controller 100 transfers the cost of the integrated (or shared) part to important or critical characteristics, carries out certain redundant design, reduces failure modes, and improves quality performance; in terms of cost, the controller 100 simplifies the system principle and wire harness principle of the whole vehicle, and reduces the cost of the whole vehicle.

[0180] In some embodiments, as Figure 8As shown, the heat dissipation structure 120 and the first switching circuit 32 are arranged on the same side of the housing 110 of the controller 100, and the second switching circuit 42 is arranged on the heat dissipation surface 72 of the compressor 7.

[0181] As shown, the heat dissipation structure 120 and the first switching circuit 32 are arranged on the same side of the housing 110 of the controller 100, and the second switching circuit 42 is arranged on the heat dissipation surface 72 of the compressor 7.

[0182] The embodiment of the present application provides a control method. In combination with Figure 2 , referring to Figure 11 , the control method comprises S1-S2.

[0183] S1: in response to the received control instruction, the first voltage input by the first power supply circuit 1 is converted into the second voltage for driving the heating circuit 61 to work through the first control circuit 3.

[0184] S2: in response to the received control instruction, the third voltage input by the first power supply circuit 1 is converted into the fourth voltage for driving the refrigeration circuit 71 to work through the second control circuit 4.

[0185] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A controller characterized by, The application relates to a processor (5), a first power supply circuit (1), a first control circuit (3), a second control circuit (4), a first detection circuit (8) and a second detection circuit (9). The first control circuit (3) is coupled to the first power supply circuit (1) and the processor (5) respectively, and is further used for coupling a heating circuit (61); the first control circuit (3) comprises a first driving circuit (31) and a first switching circuit (32); the first switching circuit (32) is coupled to the first power supply circuit (1) and the first driving circuit (31) respectively, and is further used for coupling the heating circuit (61). The second control circuit (4) is coupled to the first power supply circuit (1) and the processor (5) respectively, and is further used for coupling a refrigeration circuit (71); the second control circuit (4) comprises a second driving circuit (41) and a second switching circuit (42); the second switching circuit (42) is coupled to the first power supply circuit (1) and the second driving circuit (41) respectively, and is further used for coupling the refrigeration circuit (71). The first driving circuit (31) and the second driving circuit (41) are coupled to the processor (5) respectively. The first detection circuit (8) is coupled to the processor (5); the first detection circuit (8) comprises at least one of a first temperature detection circuit, a second temperature detection circuit or a first driving voltage detection circuit; the first temperature detection circuit is used for detecting the temperature of the first switching circuit (32), the second temperature detection circuit is used for detecting the temperature of the heating circuit (61), and the first driving voltage detection circuit is used for detecting the driving voltage of the first switching circuit (32). The second detection circuit (9) is coupled to the processor (5); the second detection circuit (9) comprises at least one of a third temperature detection circuit or a second driving voltage detection circuit; the third temperature detection circuit is used for detecting the temperature of the second switching circuit (42), and the second driving voltage detection circuit is used for detecting the driving voltage of the second switching circuit (42). The processor (5) is configured to: in response to a received control instruction, convert a first voltage input by the first power supply circuit (1) into a second voltage used for driving the heating circuit (61) to work through the first control circuit (3), and / or in response to a received control instruction, convert a third voltage input by the first power supply circuit (1) into a fourth voltage used for driving the refrigeration circuit (71) to work through the second control circuit (4). The first switching circuit (32) comprises at least one insulated gate bipolar transistor (IGBT).

2. The controller of claim 1, wherein, The first switching circuit (32) comprises at least two cascaded insulated gate bipolar transistors (IGBT).

3. The controller of claim 1, wherein, The first power supply circuit (1) comprises a first filter circuit (11) and a first connector (12).

4. The controller of claim 1, wherein, ​ The first filter circuit (11) is coupled between the first control circuit (3) and the first connector (12); the first connector (12) is used to couple the first filter circuit (11) with an external first power supply.

5. The controller of claim 4, wherein, Further comprising: A first current sampling circuit (81) and a second current sampling circuit (91); The first current sampling circuit (81) is coupled between the processor (5) and the first switch circuit (32); The second current sampling circuit (91) is coupled between the processor (5) and the second switch circuit (42).

6. The controller according to claim 5, wherein, The first filter circuit (11) is coupled with the first current sampling circuit (81) through a first safety capacitor (X1); the first filter circuit (11) and the second current sampling circuit (91) are coupled through a second safety capacitor (X2); the first filter circuit (11) and the grounding point in the controller are coupled through a third safety capacitor (Y1); The first current sampling circuit (81) and the grounding point in the controller are coupled through a fourth safety capacitor (Y2); The second current sampling circuit (91) and the grounding point in the controller are coupled through a fifth safety capacitor (Y3).

7. The controller of claim 1, wherein, Further comprising: A second power supply circuit (2) coupled to the processor (5) is used to couple the processor (5) with an external second power supply.

8. The controller of claim 7, wherein, The second power supply circuit (2) comprises a second filter circuit (21) and a second connector (22); The second filter circuit (21) is coupled between the second connector (22) and the processor (5).

9. The controller of claim 1, wherein, Further comprising a communication circuit (10); The first end of the communication circuit (10) is coupled to the processor (5), and the second end of the communication circuit (10) is used to be coupled to a vehicle-mounted module (200).

10. The controller of claim 9, wherein, The communication circuit (10) comprises a first communication sub-circuit (101) and a second communication sub-circuit (102); The first end of the first communication sub-circuit (101) and the first end of the second communication sub-circuit (102) are respectively coupled to the processor (5); The second end of the first communication sub-circuit (101) and the second end of the second communication sub-circuit (102) are respectively used to be coupled to the vehicle-mounted module (200).

11. The controller of claim 10, wherein, The first communication sub-circuit (101) is a LIN communication circuit, and the second communication sub-circuit (102) is a CAN communication circuit.

12. A control method characterized by, The control method is applied to the controller according to any one of claims 1-11; the method comprises: In response to the received control instruction, the first voltage input by the first power supply circuit (1) is converted into the second voltage used to drive the heating circuit (61) to work through the first control circuit (3); And / or, In response to the received control instruction, the third voltage input by the first power supply circuit (1) is converted into the fourth voltage used to drive the refrigeration circuit (71) to work through the second control circuit (4).

13. A control system characterized by, The control system comprises a heating circuit (61), a refrigeration circuit (71) and the controller according to any one of claims 1-11; the controller is coupled to the heating circuit (61) and the refrigeration circuit (71) respectively.

14. The control system of claim 13, wherein, The controller comprises a housing (110) and an integrated substrate, the integrated substrate is coupled to the heating circuit (61) and the refrigeration circuit (71) respectively.

15. The control system of claim 14, wherein, The control system comprises a heater (6) and a compressor (7); the heater (6) comprises the heating circuit (61), and the compressor (7) comprises the refrigeration circuit (71); a heat dissipation structure (120) and a first switching circuit (32) are arranged on the same surface of the housing (110); The second switching circuit (42) of the controller is arranged on the heat dissipation surface (72) of the compressor (7).

16. A vehicle characterized by comprising: The control system comprises a vehicle-mounted module (200) and the control system according to any one of claims 13-15; the vehicle-mounted module (200) is coupled to the control system.

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