High-voltage electric heating system, control method and vehicle

Abstract

The application provides a high-voltage electric heating system, a control method and a vehicle. The system comprises a communication module, a control module, a power module, a detection module, a power supply module and a condensation module, wherein the detection module comprises a Hall sensor, a voltage sensor, a first temperature sensor and a second temperature sensor. The power supply module is connected with the power module and the control module, and is used for providing a stable voltage. The control module is connected with the communication module, and is used for receiving a control instruction. The control module is also connected with the detection module, and is used for receiving real-time data of the power module and the condensation module collected, and generating a target driving instruction according to the control instruction and the real-time data. The target driving instruction is sent to the power module through the connection with the power module, so that the power module drives and adjusts the condensation module to adjust the temperature. The high-voltage electric heating system, the control method and the vehicle enhance the service life of the vehicle, improve the working efficiency and safety of the high-voltage electric heating system, and improve the driving experience.

Description

Technical Field

[0001] This application relates to high-voltage electric heating technology, and more particularly to a high-voltage electric heating system, control method, and vehicle. Background Technology

[0002] In new energy vehicles, the high-voltage electric heating system transfers heat to the vehicle for battery pack heating, air conditioning system heating, etc. There is no exhaust gas produced when the internal combustion engine vehicle is working, so there is no exhaust pollution, protecting the environment and the cleanliness of the air.

[0003] In existing high-voltage electric heating systems, the high-voltage electric heater directly drives the corresponding power module by outputting a drive signal to the power module through the microcontroller unit in the control circuit, or after the microcontroller unit outputs a drive signal to the power module, the drive signal is simply amplified by a transistor before being input to the power module, and the power module controls the heater accordingly.

[0004] However, the temperature of the battery pack and air conditioning system inside the car may change with the environment. For example, existing technology only controls the heat output of the heater through the control circuit. After the battery pack and / or air conditioning system reach the preset temperature, the temperature of the battery pack and / or air conditioning system may still deviate from the preset temperature range due to continuous operation. Moreover, it is impossible to control the changing temperature in real time, thereby reducing the service life of the components and reducing the driving experience. Summary of the Invention

[0005] This application provides a high-voltage electric heating system, control method, and vehicle to enhance the service life of automotive components, improve the working efficiency of the high-voltage electric heating system, enhance safety and adjustment reliability, and improve the driving experience.

[0006] In a first aspect, this application provides a high-voltage electric heating system, which includes a communication module, a control module, a power module, a detection module, and a condensation module;

[0007] The communication module connects to the control module. The communication module is used to input control commands into the control module, and the control module receives the control commands.

[0008] The input terminal of the control module is connected to the output terminal of the detection module to acquire real-time data from the power module and the condensation module collected by the detection module. The control module generates a target drive signal based on the real-time data and control commands. The real-time data includes real-time voltage, real-time current, first real-time temperature and second real-time temperature.

[0009] The output of the control module is connected to the power module, which sends a target drive signal to the power module. The power module controls the condensing module according to the target drive signal, so that the condensing module adjusts the target temperature according to the target drive signal.

[0010] Optionally, the detection module includes a Hall sensor;

[0011] The input terminal of the Hall sensor is connected to the condensation module, and the output terminal of the Hall sensor is connected to the control module. It is used to collect the real-time current of the condensation module and feed it back to the control module.

[0012] Optionally, the detection module includes a voltage sensor; the input terminal of the voltage sensor is connected to the high-voltage filter module for acquiring the output voltage of the high-voltage filter module, and the output terminal of the voltage sensor is connected to the control module for feeding back the real-time voltage to the control module.

[0013] Optionally, the detection module includes a first temperature sensor and a second temperature sensor;

[0014] The first temperature sensor is located on the power module side and connected to the control module. It is used to collect the first real-time temperature of the power module and feed it back to the control module.

[0015] The second temperature sensor is located on the condenser module side and is connected to the control module. It is used to collect the second real-time temperature of the condenser module and feed it back to the control module.

[0016] Optionally, the high-voltage electric heating system also includes a power supply module;

[0017] The output of the power module is connected to the power module to provide voltage drive to the power module; the output of the power module is also connected to the control module to provide voltage drive to the control module.

[0018] Optionally, the power module includes a low-voltage filter, a voltage regulator, and a DC-DC power supply;

[0019] The output of the low-voltage filter is connected to the input of the voltage regulator. It is used to pass the filtered low-voltage voltage to the voltage regulator to regulate the low-voltage voltage and generate a regulated voltage.

[0020] The output of the voltage regulator is connected to the control module to supply power to the control module through the regulated voltage. The output of the voltage regulator is also connected to the input of the DC-DC power supply to transfer the regulated voltage to the DC-DC power supply, so that the DC-DC power supply can boost the regulated voltage to generate a boost voltage.

[0021] The output of the DC-DC power supply is connected to the power module to supply power to the IGBT driver and amplifier in the power module through a boost voltage.

[0022] Optionally, the power module includes an amplifier, an IGBT unit, and an IGBT driver unit, wherein the IGBT unit includes N IGBTs, and the IGBT driver unit includes N IGBT drivers, where N is a positive integer;

[0023] The amplifier's input is connected to the output of the DC-DC power supply. The amplifier's input is also connected to the output of the control module to receive and amplify the target drive signal output by the control module. The amplifier's output is connected to the input of each IGBT driver to transmit the target drive signal to each IGBT driver.

[0024] The output of each IGBT driver is connected to the corresponding IGBT, which is used to send the target drive signal to the corresponding IGBT to control the operation of each IGBT.

[0025] Optionally, the condensation module includes a heater, a condenser, and a water pump;

[0026] The input terminal of the heater is connected to the power module, which drives the heater to work.

[0027] The water pump's input end is connected to the condenser's output end, and the water pump's output end is connected to the heater's input end. The water pump is used to obtain condensate from the condenser and input the condensate into the heater for heating.

[0028] The heater's output is connected to the condenser's input. The heater heats the condensate to generate hot water, which is then output back to the condenser, allowing the condenser to generate and transfer heat based on the target temperature of the condensate.

[0029] Optionally, the IGBT includes three connection terminals, including a first connection terminal, a second connection terminal, and a third connection terminal; the high-voltage electric heating system also includes a high-voltage filter module;

[0030] The first connection terminal is connected to the output terminal of the high-voltage filter module, which is used to enable the IGBT to obtain high-voltage power supply. The second connection terminal is connected to the output terminal of the IGBT driver corresponding to the IGBT, which is used to transmit the target drive signal to the IGBT. The third connection terminal is connected to the heater, which is used to output the target control signal according to the target drive signal to control the heater to work.

[0031] Optionally, the Hall sensor is also connected to a high-voltage connector, through which the high-voltage electricity output by the high-voltage connector powers the Hall sensor.

[0032] The first temperature sensor is also connected to a voltage regulator, and the second temperature sensor is also connected to a voltage regulator. Both the first and second temperature sensors are powered by the regulated voltage output by the voltage regulator. The water pump is connected to a low-voltage connector, and the water pump is powered by the low-voltage electricity output by the low-voltage connector.

[0033] Secondly, this application provides a control method for a high-voltage electric heating system, the high-voltage electric heating system including a communication module, a control module, a power module, a detection module and a condensation module, the method being applied to;

[0034] The control module receives control commands input from the communication module and sends acquisition commands to the detection module according to the control commands. The detection module then acquires real-time data from the power module and the condenser module according to the acquisition commands and sends the real-time data back to the control module. The real-time data includes real-time voltage, real-time current, first real-time temperature, and second real-time temperature.

[0035] The target drive signal is generated based on real-time data and control commands, and then sent to the power module. The power module controls the condenser module according to the target drive signal, and the condenser module adjusts the target temperature according to the target drive signal.

[0036] Thirdly, this application provides a vehicle that includes a high-voltage electric heating system.

[0037] The high-voltage electric heating system, control method, and vehicle provided in this application include a communication module, a control module, a power module, a detection module, and a condensation module. The driver sends control commands to the control module through the connection between the communication module and the control module. The detection module collects real-time current, real-time voltage, first real-time temperature, and second real-time temperature from the condensation module and the power module, and sends the above real-time data to the control module. The control module generates a target drive signal based on the real-time data and control commands. The control module sends the target drive signal to the power module through its connection with the power module. The power module also sends the target drive signal to the condensation module through its connection with the condensation module. This enables the condensation module to generate target heat and regulate the temperature of the target part of the vehicle according to the indication of the target drive signal, thereby improving the temperature regulation efficiency and accuracy of the high-voltage electric heating system. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0039] Figure 1 A structural diagram of a high-voltage electric heating system provided in an embodiment of this application;

[0040] Figure 2 A structural diagram of a high-voltage electric heating system provided in an embodiment of this application;

[0041] Figure 3 A schematic diagram of a high-voltage electric heating system provided in this application embodiment;

[0042] Figure 4 A circuit diagram of a voltage regulator provided in an embodiment of this application;

[0043] Figure 5A circuit schematic diagram of a low-voltage filter provided in an embodiment of this application;

[0044] Figure 6 A circuit schematic diagram of a DC-DC power supply provided for an embodiment of this application;

[0045] Figure 7 A circuit schematic diagram of a DC-DC power supply provided for an embodiment of this application;

[0046] Figure 8 A circuit schematic diagram of a DC-DC power supply provided for an embodiment of this application;

[0047] Figure 9 A flowchart illustrating a control method for a high-voltage electric heating system provided in this application embodiment.

[0048] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0050] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation portals are provided for users to choose to authorize or refuse.

[0051] The working principle of a conventional car is that the engine converts heat energy into mechanical energy. The working principle of a new energy vehicle is that it uses a battery as an energy storage power source, which provides electrical energy to the electric motor to drive the motor and propel the car.

[0052] During the driving process, drivers usually need to adjust the temperature of the cabin. For example, they need to turn up the temperature when the weather is cold and turn it down when the weather is hot. In addition, during the operation of new energy vehicles, the battery continuously supplies power, which causes the battery temperature to rise, reducing the battery's lifespan and range.

[0053] Therefore, existing technologies regulate the temperature required by drivers and new energy vehicles by using condensers for cooling, where new energy vehicles include high-voltage electric heating systems. Figure 1 A structural diagram of a high-voltage electric heating system provided in this application embodiment is shown below. Figure 1 As shown, the structure of the current high-voltage electric heating system 10 for new energy vehicles includes: a first communication module 101, a first control module 102, a first power module 103, a first condensation module 104, a first high-voltage filter module 105, a first low-voltage connector 106, and a first high-voltage connector 107.

[0054] The system comprises a first low-voltage connector whose input terminal is connected to a low-voltage battery pack, and whose output terminal is connected to a first communication module. The first communication module supplies power to the first communication module via low-voltage electricity from the battery pack. The output terminal of the first communication module is connected to the input terminal of a first control module. The output terminal of the first control module is connected to the input terminal of a first power module. The output terminal of the first power module is connected to a first condensing module. The first communication module receives control commands from the driver and transmits these commands to the first control module. The first control module then outputs a drive signal to drive the first power module, which in turn outputs a control signal to control the first condensing module to reduce the actual temperature of the target device to the target temperature.

[0055] Optionally, the input terminal of the first power module is also connected to a first high-voltage filter module, the first high-voltage filter module is also connected to a first high-voltage connector, and the first high-voltage connector is also connected to a high-voltage battery pack, for supplying power to the first power module through the high-voltage battery pack via the first high-voltage filter module.

[0056] However, during the operation of new energy vehicles, even after adjusting each component and / or device to the target temperature, their real-time temperature continues to rise as they operate continuously. When the real-time temperature deviates significantly from the target temperature, the driver cannot promptly issue control commands to regulate the temperature. Furthermore, the components in the high-voltage electric heating system, which continuously controls the temperature, also heat up as they operate. Overheating of these components reduces their efficiency and can even cause damage, increasing safety hazards. Additionally, the continuous power supply to the high-voltage electric heating system and the vehicle's battery pack causes the battery pack to overheat, reducing the efficiency and stability of the power supply to the high-voltage electric heating system, thus affecting its overall efficiency.

[0057] The high-voltage electric heating system, control method, and vehicle of the present invention, when the driver transmits control commands to the control module via the communication module, connect a power supply module and a detection module to the high-voltage electric heating system of the new energy vehicle. The input end of the power supply module is connected to a low-voltage connector module, and the output end is connected to the control module. The power supply module ensures sufficient power supply from the battery pack to the control module. The output end of the power supply module is also connected to a power module to stabilize the continuous power supply from the power supply module to the power module, reducing the probability of system failure. The detection module is connected to the power module and the condenser module to detect real-time data of the operation of the power module and the condenser module, and sends the real-time data to the control module via the connection. This allows the control module to adjust the condenser module based on the real-time data and control commands, thereby ensuring that the high-voltage electric heating system can timely control the temperature of the system and in-vehicle components, thereby reducing safety hazards and improving work efficiency and adjustment reliability.

[0058] like Figure 2 The diagram shown is a structural diagram of a high-voltage electric heating system provided in an embodiment of this application, including: a communication module 11, a control module 15, a power module 16, a detection module 14, a condensation module 17, a high-voltage filter module 13, a low-voltage connector 18, and a high-voltage connector 19.

[0059] The communication module's output is connected to the control module. The communication module receives control commands input by the driver and then sends those commands back to the control module. The control module receives the control commands transmitted by the communication module. The control module's input is connected to the output of the detection module, which is also connected to the power module and the condenser module. The control module acquires real-time data from the power module and the condenser module collected by the detection module and generates a target drive signal based on the acquired real-time data and the control commands. The control module's output is connected to the power module, which inputs the target drive signal to it. The power module is also connected to the condenser module, controlling its operation according to the target drive signal, allowing the condenser module to adjust the target temperature based on the target drive signal. The control commands include the target temperature, and the real-time data includes real-time voltage, real-time current, a first real-time temperature, and a second real-time temperature.

[0060] In one possible embodiment, the driver sends a control command to the high-voltage electric heating system via an in-vehicle mobile device and / or function buttons. After the communication module receives the control command, it sends the control command to the control module. After receiving the control command, the control module generates a first drive signal and sends the first drive signal to the power module, so that the power module controls the condensation module to work according to the first drive signal, thereby adjusting the high-voltage electric heating system and in-vehicle components to the target temperature.

[0061] In one possible embodiment, after the high-voltage electric heating system and the in-vehicle components are adjusted to the target temperature, the detection module collects the first real-time temperature of the power module in the high-voltage electric heating system, the real-time current and the second real-time temperature output by the condensing module, and the real-time voltage output by the high-voltage filter module. The real-time voltage, real-time current, first real-time temperature and second real-time temperature are fed back to the control module, so that the control module generates a target drive signal based on the real-time voltage, real-time current, first real-time temperature, second real-time temperature and the target temperature, and then sends the target drive signal to the power module, so that the power module controls the condensing module.

[0062] More specifically, Figure 3 A schematic diagram of a high-voltage electric heating system provided in this application embodiment is shown below. Figure 3 As shown, it includes a detection module, a control module, a power module, a condensation module, a power supply module, low-voltage connectors, and high-voltage connectors.

[0063] Optionally, the detection module includes a Hall sensor, a voltage sensor, a first temperature sensor, and a second temperature sensor. The input of the Hall sensor is connected to the condenser module, and its output is connected to the control module, used to acquire the real-time current of the condenser module and feed it back to the control module. The input of the voltage sensor is connected to the high-voltage filter module, used to acquire the output voltage of the high-voltage filter module, and its output is connected to the control module, used to feed back the real-time voltage to the control module. The first temperature sensor is located on the power module side and connected to the control module, used to acquire the first real-time temperature of the power module and feed it back to the control module. The second temperature sensor is located on the condenser module side and connected to the control module, used to acquire the second real-time temperature of the condenser module and feed it back to the control module.

[0064] In the high-voltage electric heating system provided in this application embodiment, a Hall sensor collects the real-time output current of the condensing module, a voltage sensor collects the real-time high-voltage, a first temperature sensor collects the first real-time temperature around the IGBT, and a second temperature sensor collects the second real-time temperature of the condensing module. The real-time data is fed back to the control module, enabling the control module to make precise feedback adjustments based on the real-time data and target temperature. This achieves real-time monitoring of the high-voltage electric heating system's operating data. When the real-time temperature changes, the temperature is adjusted in real time, promptly adjusting the operating status of the high-voltage heating system and in-vehicle components, improving the efficiency of the high-voltage electric heating system and other functional components, and enhancing the driver's driving experience.

[0065] In one possible embodiment, the voltage sensor acquires the real-time voltage output by the high-voltage filter module and inputs the acquired real-time voltage into the control module. The control module determines when the real-time voltage reaches the over- or under-voltage protection threshold based on the acquired real-time voltage, and outputs a target drive signal to stop the IGBT driver from working, thereby achieving over-voltage protection of the circuit and improving the safety of the system.

[0066] In one possible embodiment, a first temperature sensor collects the first real-time temperature around each IGBT and sends the first real-time temperature to the control module. The control module compares the first real-time temperature with the target temperature. When it is found that the first real-time temperature exceeds the target temperature, it determines that the IGBT is in an over-temperature state and generates a target drive signal to shut down the corresponding IGBT driver branch, thereby controlling the over-temperature IGBT driver branch to stop working, protecting the device and increasing its service life.

[0067] In one possible embodiment, the Hall sensor collects the real-time current output by the heater and sends the real-time current to the control module. The control module determines whether the real-time current has reached the current protection threshold based on the real-time current. When the current protection threshold is reached, it determines that the heater current is too high and generates a target drive signal to shut down the heater, controlling the heater to stop working and providing overcurrent protection for the heater.

[0068] In one possible embodiment, the second temperature sensor acquires the second real-time temperature of the heater and sends the second real-time temperature to the control module. The control module compares the second real-time temperature with the target temperature. When it is found that the second real-time temperature deviates from the target temperature, it determines that the heater is in an adjustment state and generates a corresponding target drive signal for adjustment. The heater that deviates from the target temperature continues to work. The corresponding temperature adjustment is performed through the adjustment indication of the target drive signal, thereby increasing the adjustment accuracy.

[0069] In the high-voltage electric heating system provided in this application embodiment, the safety is enhanced by protecting the system components, and the system's working efficiency is avoided from being affected by the deterioration of component performance.

[0070] Optionally, the high-voltage electric heater also includes a power supply module 12, such as... Figure 2 As shown, the output terminal of the power module is connected to the power module to provide voltage drive to the power module. The output terminal of the power module is also connected to the control module to provide voltage drive to the control module.

[0071] In one possible embodiment, during the operation of the high-voltage electric heating system, the power supply module supplies power to the control module and the power module, and the high-voltage filter module provides high-voltage electricity to the control module.

[0072] More specifically, such as Figure 3 As shown, the power supply module includes a low-voltage filter, a voltage regulator, and a DC-DC power supply. The output of the low-voltage filter is connected to the input of the voltage regulator. The circuit diagram of the low-voltage filter is shown below. Figure 5 As shown, the voltage regulator is used to pass the filtered low-voltage voltage to the voltage regulator for regulation, generating a regulated voltage. The output of the voltage regulator is connected to the control module to supply power to the control module via the regulated voltage. The output of the voltage regulator is also connected to the input of a DC-DC power supply to pass the regulated voltage to the DC-DC power supply, enabling the DC-DC power supply to boost the regulated voltage, generating a boost voltage. The circuit diagram of the voltage regulator is shown below. Figure 4 As shown. The output of the DC-DC power supply is connected to the power module to supply power to the power module via a boost voltage.

[0073] Optionally, the DC-DC power supply includes a power driver, a transformer, and a feedback regulator. The power driver drives the DC-DC power supply, the transformer changes the voltage rise and fall, and the feedback regulator stabilizes the output voltage. The schematic diagram of the drive circuit in the DC-DC power supply is shown below. Figure 6 As shown, the transformer schematic in a DC-DC power supply is as follows: Figure 7 As shown, the schematic diagram of the feedback regulator in a DC-DC power supply is as follows: Figure 8 As shown.

[0074] Optionally, the power module includes an amplifier, an IGBT unit, and an IGBT driver unit, wherein the IGBT unit includes N IGBTs, and the IGBT driver unit includes N IGBT drivers, where N is a positive integer.

[0075] Optionally, the amplifier's input is connected to the output of a DC-DC power supply to obtain the boost voltage. The amplifier's input is also connected to the output of a control module to receive and amplify the target drive signal output by the control module. The amplifier's output is connected to the input of each IGBT driver to transmit the target drive signal to each IGBT driver. The output of each IGBT driver is connected to its corresponding IGBT to send the target drive signal to the corresponding IGBT for controlling the operation of each IGBT.

[0076] Optionally, the condensing module includes a heater, a condenser, and a water pump. The input of the heater is connected to a power module, which transmits a target drive signal to the heater, thereby driving it to operate. The input of the water pump is connected to the output of the condenser, and the output of the water pump is connected to the input of the heater. The water pump draws condensate from the condenser and feeds it into the heater for heating. The output of the heater is connected to the input of the condenser. After heating the condensate, the heater generates hot water, which is then fed back into the condenser, allowing the condenser to generate and transfer heat according to the target temperature.

[0077] Optionally, such as Figure 3 As shown, Figure 3 The wiring connections on the left side are not shown in the diagram. The left double terminals of the high-voltage connector are connected to the high-voltage battery pack, the left double terminals of the low-voltage connector are connected to the low-voltage battery pack, and the left triple terminal of the water pump is connected to the left double terminal of the low-voltage connector. The low-voltage power output from the low-voltage connector powers the water pump.

[0078] Optionally, the new energy vehicle also includes a fan and a heat sink. The fan is connected to the condenser and the heat sink via pipes. The heat sink is located around the high-voltage battery pack and / or the low-voltage battery pack (not shown in the attached diagram). When the temperature of the high-voltage battery pack and / or the low-voltage battery pack is too high, the condenser transfers heat to the heat sink around the high-voltage battery pack and / or the low-voltage battery pack via the fan, thereby regulating the temperature of the high-voltage battery pack and / or the low-voltage battery pack through the heat sink.

[0079] Optionally, such as Figure 3 As shown, the IGBT includes three connection terminals: a first connection terminal, a second connection terminal, and a third connection terminal. The first connection terminal is connected to the output terminal of the high-voltage filter module to enable the IGBT to obtain high-voltage power supply. The second connection terminal is connected to the output terminal of the IGBT driver to which the IGBT is connected, and is used to transmit the target drive signal to the IGBT. The third connection terminal is connected to the heater and is used to output a target control signal to control the heater to work according to the target drive signal.

[0080] Optionally, the Hall sensor is also connected to a high-voltage connector, through which the high-voltage power output of the high-voltage connector powers the Hall sensor; the first temperature sensor is also connected to a voltage regulator, and the second temperature sensor is also connected to a voltage regulator, with both the first and second temperature sensors powered by the regulated voltage output of the voltage regulator.

[0081] Optionally, the high-voltage filter module is connected to the power module to provide high-voltage power to the power module.

[0082] In one possible embodiment, the high-voltage battery pack provides 450V high voltage to the Hall sensor via a high-voltage connector. After passing through a high-voltage filter module, the 450V high voltage is then passed to a voltage sensor and further transmitted to a third connection terminal of the IGBT in the power module to complete the power supply. The low-voltage battery pack, after passing through a low-voltage connector, regulates the 12V low voltage to a 5V regulated voltage, which is then used to power the control module. This regulated voltage also powers the first and second temperature sensors. The 5V regulated voltage is further boosted to 15V via a DC-DC power supply, which then powers the IGBT driver and amplifier in the power module.

[0083] In the high-voltage electric heating system provided in this application embodiment, the low-voltage voltage is regulated by a voltage regulator to generate a regulated voltage before supplying power to the control module. This enhances the stability of the power supply to the control module when the low-voltage battery pack is affected by high temperatures. The regulated voltage is also boosted by a DC-DC power supply to generate a boost voltage to power the IGBT driver and amplifier in the power module. This further enhances the stability of the power supply to the power module when the low-voltage battery pack is affected by high temperatures. As a result, the overall stability and reliability of the high-voltage electric heating system are improved when the battery pack's range and discharge stability are reduced due to high temperatures.

[0084] Optionally, based on this high-voltage electric heating system, the high-voltage electric heating system includes a communication module, a control module, a power module, a detection module, and a condensation module. Figure 9 A flowchart of a control method for a high-voltage electric heating system provided in this application embodiment is shown below. Figure 9 As shown, the control method of this high-voltage electric heating system includes the following steps:

[0085] S901, the control module obtains the control commands input by the communication module and sends acquisition commands to the detection module according to the control commands.

[0086] More specifically, the communication module inputs control commands to the control module, the control module acquires the control commands, generates acquisition commands based on the control commands, and sends the acquisition commands to the detection module. The detection module includes a Hall sensor, a voltage sensor, a first temperature sensor, and a second temperature sensor.

[0087] S902, the control module enables the detection module to collect real-time data according to the acquisition command.

[0088] More specifically, the detection module acquires the acquisition command and acquires real-time data from the power module and the condenser module according to the acquisition command.

[0089] Optionally, the control module enables the Hall sensor in the detection module to collect the real-time current of the condensation module and send it to the control module.

[0090] Optionally, the high-voltage electric heating system also includes a high-voltage filter module, and the control module enables the voltage sensor in the detection module to collect the output voltage of the high-voltage filter module and send the real-time voltage to the control module.

[0091] Optionally, the control module causes the first temperature sensor in the detection module to collect the first real-time temperature of the power module and feed it back to the control module, and causes the second temperature sensor in the detection module to collect the second real-time temperature of the condensation module and feed it back to the control module.

[0092] S903: The control module acquires real-time data, generates a target drive signal based on the real-time data and control commands, and sends the target drive signal to the power module.

[0093] More specifically, the control module acquires the real-time current from the Hall sensor, the real-time voltage from the voltage sensor, the first real-time temperature from the first temperature sensor, and the second real-time temperature from the second temperature sensor. Based on the real-time current, real-time voltage, first real-time temperature, second real-time temperature, and control commands from the communication module, it generates a target drive signal and sends the target drive signal to the power module. The target drive signal includes the error between the real-time data and the control commands.

[0094] S904, the control module enables the power module to control the condensing module according to the target drive signal, and enables the condensing module to adjust the target temperature according to the target drive signal.

[0095] More specifically, the high-voltage electric heating system also includes a power module. The power module acquires the target drive signal under the voltage drive of the power module, and controls the condensing module according to the target drive signal, so that the condensing module adjusts the target temperature according to the target drive signal, wherein the target drive signal includes the target temperature.

[0096] Optionally, the condensation module includes a heater, a condenser, and a water pump. The water pump draws condensate from the condenser and feeds it into the heater. Driven by the power module, the heater heats the condensate to generate hot water, which is then output back to the condenser. This allows the condenser to generate and transfer heat based on the target temperature of the condensate.

[0097] Optionally, the power module includes a low-voltage filter, a voltage regulator, and a DC-DC power supply, and the power module includes an amplifier, an IGBT unit, and an IGBT driver unit, wherein the IGBT unit includes N IGBTs, and the IGBT driver unit includes N IGBT drivers, where N is a positive integer.

[0098] Optionally, the low-voltage filter filters the low-voltage electricity and passes the filtered low-voltage voltage to the regulator, which then regulates the low-voltage voltage and generates a regulated voltage. The regulated voltage is then passed to the DC-DC power supply, which boosts the regulated voltage and generates a boost voltage, which supplies power to the IGBT driver and amplifier in the power module.

[0099] Optionally, the amplifier receives and amplifies the target drive signal output by the control module, and then transmits the amplified target drive signal to each IGBT driver, so that each IGBT driver sends the target drive signal to its corresponding IGBT, thereby controlling each IGBT to control the heater to work according to the target drive signal.

[0100] In the control method of the high-voltage electric heating system provided in this application embodiment, the control module obtains the driver's control command and sends a collection command to the detection module according to the control command, thereby obtaining the real-time current, real-time voltage, first real-time temperature and second real-time temperature collected by the detection module. The collected real-time data and control command are compared and a target drive signal is generated. Under the stable and precise power supply of the power module, the target drive signal is amplified and transmitted to the condensation module. The condensation module is controlled to generate heat according to the target temperature in the target drive signal, thereby automatically adjusting the temperature. This enhances the detection of temperature changes during vehicle operation, improves the timeliness and accuracy of temperature control, and further improves driving safety and comfort.

[0101] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0102] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A high-voltage electric heating system, characterized in that, The high-voltage electric heating system includes a communication module, a control module, a power module, a detection module, and a condensation module; the detection module includes a first temperature sensor and a second temperature sensor. The first temperature sensor is located on the power module side and connected to the control module, and is used to collect the first real-time temperature of the power module and feed it back to the control module; The second temperature sensor is located on the condenser module side and connected to the control module, and is used to collect the second real-time temperature of the condenser module and feed it back to the control module; The communication module is connected to the control module, and the communication module is used to input control commands to the control module, and the control module receives the control commands. The input terminal of the control module is connected to the output terminal of the detection module, and is used to acquire real-time data collected by the detection module from the power module and the condensation module. The control module generates a target drive signal based on the real-time data and the control command. The real-time data includes real-time voltage, real-time current, the first real-time temperature and the second real-time temperature. The output of the control module is connected to the power module and is used to send the target drive signal to the power module. The power module controls the condensation module according to the target drive signal. The condensation module includes a heater, a condenser, and a water pump; The input terminal of the heater is connected to the power module, so that the power module drives the heater to work; The input end of the water pump is connected to the output end of the condenser, and the output end of the water pump is connected to the input end of the heater. The water pump is used to obtain condensate from the condenser and input the condensate into the heater for heating. The output end of the heater is connected to the input end of the condenser. The heater heats the condensate to generate hot water, and then outputs the hot water back to the condenser, so that the condenser generates heat according to the target temperature of the condensate and transfers it. The control module compares the second real-time temperature with the target temperature in the control command. When the second real-time temperature deviates from the target temperature, it generates a target drive signal to adjust the working state of the condensing module, so that the condensing module adjusts the target temperature according to the target drive signal.

2. The high-voltage electric heating system according to claim 1, characterized in that, The detection module includes a Hall sensor; The input terminal of the Hall sensor is connected to the condensation module, and the output terminal of the Hall sensor is connected to the control module, which is used to collect the real-time current of the condensation module and feed it back to the control module.

3. The high-voltage electric heating system according to claim 2, characterized in that, The detection module includes a voltage sensor; the input terminal of the voltage sensor is connected to a high-voltage filter module for acquiring the output voltage of the high-voltage filter module, and the output terminal of the voltage sensor is connected to the control module for feeding back the real-time voltage to the control module.

4. The high-voltage electric heating system according to claim 1, characterized in that, The high-voltage electric heating system also includes a power supply module; The output terminal of the power module is connected to the power module to provide voltage drive to the power module; the output terminal of the power module is also connected to the control module to provide voltage drive to the control module.

5. The high-voltage electric heating system according to claim 4, characterized in that, The power module includes a low-voltage filter, a voltage regulator, and a DC-DC power supply. The output terminal of the low-voltage filter is connected to the input terminal of the voltage regulator, and is used to transmit the filtered low-voltage voltage to the voltage regulator to regulate the low-voltage voltage and generate a regulated voltage. The output terminal of the voltage regulator is connected to the control module and is used to supply power to the control module through the regulated voltage. The output terminal of the voltage regulator is also connected to the input terminal of the DC-DC power supply and is used to transfer the regulated voltage to the DC-DC power supply so that the DC-DC power supply boosts the regulated voltage to generate a boost voltage. The output terminal of the DC-DC power supply is connected to the power module, and is used to supply power to the IGBT driver and amplifier in the power module through the boost voltage.

6. The high-voltage electric heating system according to claim 5, characterized in that, The power module includes an amplifier, an IGBT unit, and an IGBT driver unit, wherein the IGBT unit includes N IGBTs, and the IGBT driver unit includes N IGBT drivers, where N is a positive integer; The input terminal of the amplifier is connected to the output terminal of the DC-DC power supply. The input terminal of the amplifier is also connected to the output terminal of the control module, which is used to receive and amplify the target drive signal output by the control module. The output terminal of the amplifier is connected to the input terminal of each IGBT driver, which is used to transmit the target drive signal to each IGBT driver. The output of each IGBT driver is connected to the corresponding IGBT, which is used to send the target drive signal to the corresponding IGBT to control the operation of each IGBT.

7. The high-voltage electric heating system according to claim 6, characterized in that, The IGBT includes three connection terminals: a first connection terminal, a second connection terminal, and a third connection terminal; the high-voltage electric heating system also includes a high-voltage filter module. The first connection terminal is connected to the output terminal of the high-voltage filter module to enable the IGBT to obtain high-voltage power supply. The second connection terminal is connected to the output terminal of the IGBT driver corresponding to the IGBT to transmit the target drive signal to the IGBT. The third connection terminal is connected to the heater to output a target control signal to control the heater to work according to the target drive signal.

8. The high-voltage electric heating system according to claim 2, characterized in that, The Hall sensor is also connected to a high-voltage connector, through which the high-voltage electricity output by the high-voltage connector powers the Hall sensor. The first temperature sensor is also connected to a voltage regulator, and the second temperature sensor is also connected to a voltage regulator. Both the first temperature sensor and the second temperature sensor are powered by the regulated voltage output by the voltage regulator. The water pump is connected to a low-voltage connector, and the water pump is powered by the low-voltage electricity output from the low-voltage connector.

9. A control method for a high-voltage electric heating system, characterized in that, The high-voltage electric heating system includes a communication module, a control module, a power module, a detection module, and a condensation module. The method is applied to the control module, and the method includes: the detection module includes a first temperature sensor and a second temperature sensor; The first temperature sensor is located on the power module side and connected to the control module, and is used to collect the first real-time temperature of the power module and feed it back to the control module; The second temperature sensor is located on the condenser module side and connected to the control module, and is used to collect the second real-time temperature of the condenser module and feed it back to the control module; The system acquires control commands input from the communication module and sends acquisition commands to the detection module according to the control commands, so that the detection module acquires real-time data of the power module and the condensation module according to the acquisition commands, and sends the real-time data to the control module; wherein, the real-time data includes real-time voltage, real-time current, the first real-time temperature and the second real-time temperature; A target drive signal is generated based on the real-time data and the control command, and the target drive signal is sent to the power module, so that the power module controls the condensation module according to the target drive signal, and the condensation module adjusts the target temperature according to the target drive signal. The condensation module includes a heater, a condenser, and a water pump; The input terminal of the heater is connected to the power module, so that the power module drives the heater to work; The input end of the water pump is connected to the output end of the condenser, and the output end of the water pump is connected to the input end of the heater. The water pump is used to obtain condensate from the condenser and input the condensate into the heater for heating. The output of the heater is connected to the input of the condenser. The heater heats the condensate to generate hot water, which is then output back to the condenser. This allows the condenser to generate and transfer heat based on the target temperature of the condensate. The second real-time temperature is compared with the target temperature in the control command. When the second real-time temperature deviates from the target temperature, the control module generates a target drive signal to adjust the working state of the condensing module, causing the condensing module to adjust the target temperature according to the target drive signal.

10. A vehicle, characterized in that, The vehicle includes a high-voltage electric heating system as described in any one of claims 1 to 8.

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