Charging device and energy storage system

Abstract

The application discloses a charging device and an energy storage system. The charging device is used for being connected with a vehicle. When the charging device is connected to the vehicle, the charging device is connected in series with a power supply module of the vehicle and in parallel with a starting battery of the vehicle. The charging device comprises a power supply input port, a detection port, a power supply output port, a key and a controller. The power supply input port is used for being connected with the power supply module of the vehicle. The detection port is used for being connected with a starting module of the vehicle and is used for receiving a starting signal sent by the starting module. The starting module is used for starting the vehicle. The power supply output port is used for being connected with an energy storage device. The key is connected with the controller. The controller is configured to control the charging device to enter a standby mode or a shutdown mode based on the starting signal, a voltage of the starting battery, a pressing time length of the key and a standby time length when the charging device is in a working mode, so that the charging device does not consume excessive energy consumption of the starting battery, and the starting battery can always start the vehicle normally.

Description

Technical Field

[0001] This application belongs to the field of vehicle charging technology, and particularly relates to a charging device and an energy storage system. Background Technology

[0002] In recent years, to improve the utilization rate of redundant power generated by vehicles, charging devices have emerged on the market that can use the vehicle's redundant power to charge external energy storage systems. These charging devices are installed in the vehicle, connected in series with the alternator and in parallel with the starter battery, which may cause the charging device to consume the starter battery's energy. If the starter battery's energy is too low, the vehicle may fail to start. Therefore, ensuring that the starter battery's energy does not become too low is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a charging device and an energy storage system, wherein the controller can control the charging device to enter a standby mode or a power-off mode under appropriate conditions, so as to ensure that the charging device does not consume too much energy from the starting battery, and the starting battery's electrical energy is not excessively consumed, thereby ensuring that the starting battery can always start the vehicle normally.

[0004] This application provides a charging device for connection to a vehicle. When connected to the vehicle, the charging device is connected in series with the vehicle's power supply module and in parallel with the vehicle's starting battery. The charging device includes a power input port, a detection port, a power output port, a button, and a controller. The power input port is connected to the vehicle's power supply module. The detection port is connected to the vehicle's starting module and receives a start signal sent by the starting module, which is used to start the vehicle. The power output port is connected to an energy storage device. The button is connected to the controller. The controller is configured to, when the charging device is in operating mode, control the charging device to enter standby mode or power-off mode based on the start signal, the voltage of the starting battery, the duration of button press, and the standby time.

[0005] Optionally, the vehicle includes a gasoline-powered vehicle, a hybrid vehicle, and an electric vehicle, and the power supply module includes a generator or a motor. The generator includes the generator of the gasoline-powered vehicle and the generator of the hybrid vehicle, and the motor includes the motor of the electric vehicle or the motor of the hybrid vehicle. The generator includes a smart generator and a non-smart generator.

[0006] Optionally, the controller is configured to determine that the power supply module is a smart generator or motor if the detection port can receive the start signal, and to determine that the power supply module is a non-smart generator if the detection port cannot receive the start signal.

[0007] Optionally, the controller is communicatively connected to the vehicle's bus system; the controller is configured to determine whether the power supply module is a smart generator or a motor based on the message content of the bus system when it is able to receive the start signal.

[0008] Optionally, the start signal includes an ignition signal and / or an accessory power supply signal.

[0009] Optionally, when the power supply module is the intelligent generator or the motor, and the charging device is in working mode, the charging device enters standby mode if at least one of the following conditions is met: the detection port does not receive the start signal, or the voltage of the vehicle's starter battery is less than a first preset voltage threshold.

[0010] Optionally, when the power supply module is the non-intelligent generator and the charging device is in working mode, if the voltage of the vehicle's starter battery is less than a second preset voltage threshold, the controller controls the charging device to enter standby mode.

[0011] Optionally, when the charging device is in working mode, if the pressing duration of the button exceeds a first preset duration, the controller controls the charging device to enter the power-off mode.

[0012] Optionally, when the charging device is in standby mode, if at least one of the following conditions is met, the controller controls the charging device to enter the power-off mode: the duration of pressing the button in the standby state exceeds a second preset duration, the duration of the standby mode exceeds a third preset duration, or the voltage of the vehicle's starter battery is less than a third preset voltage threshold, and the third preset voltage threshold is less than the preset voltage threshold corresponding to the entry condition of the standby mode.

[0013] Optionally, the charging device further includes a voltage conversion circuit located on the line between the power supply input port and the power supply output port. The voltage conversion circuit is used to adjust the output voltage and output current of the power supply output port. The controller is configured to adjust the operating parameters of the voltage conversion circuit according to the output power of the power supply module, the output voltage of the power supply module, and a fourth preset voltage threshold, so that the voltage of the start-up battery is greater than the fourth preset voltage threshold.

[0014] Optionally, the fourth preset voltage thresholds corresponding to the intelligent generator, the non-intelligent generator, and the motor are different.

[0015] Optionally, the controller is configured to identify the type of the power supply module, obtain the fourth preset voltage threshold according to the type of the power supply module; determine the target output voltage and target output current of the power supply output port corresponding to the power supply module according to the charging requirements of the energy storage system, the output power of the power supply module, the output voltage of the power supply module and the fourth preset voltage threshold corresponding to the power supply module, and determine the operating parameters of the voltage conversion circuit according to the target output voltage and target output current.

[0016] Optionally, the controller is configured to determine the redundant power of the power supply module based on the output power of the power supply module when the difference between the output voltage of the power supply module and the fourth preset voltage threshold is greater than a preset difference threshold, so as to determine the target output power of the power supply output port based on the redundant power, and to determine the target output voltage and target output current of the power supply output port based on the target output power and the charging requirements of the energy storage system.

[0017] Optionally, the controller is configured to, when the difference between the output voltage of the power supply module and the fourth preset voltage threshold is less than a preset difference threshold, determine the redundant power of the power supply module based on the output power of the power supply module, and determine the target output power based on the current output power of the power supply output port, wherein the target output power is less than the current output power of the power supply output port and the target output power is less than the redundant power; and determine the target output voltage and target output current of the power supply output port based on the target output power and the charging requirements of the energy storage system.

[0018] Optionally, the charging device further includes an auxiliary power module configured to supply power to the controller.

[0019] Optionally, the controller is used to activate the voltage conversion circuit when the output voltage of the power supply module is greater than a fifth preset voltage threshold.

[0020] Optionally, the fifth preset voltage thresholds corresponding to the intelligent generator, the non-intelligent generator, and the battery are different.

[0021] This application provides an energy storage system, which includes an energy storage device and a charging device as described in any of the above embodiments. The energy storage device is connected to the charging device.

[0022] The charging device and energy storage system provided in this application embodiment include a button and a detection port capable of acquiring the start signal from the vehicle's start module. The controller can also acquire the voltage of the starter battery. The controller is configured to control the charging device to enter standby mode or power-off mode based on the start signal, the voltage of the starter battery, the button press duration, and the standby time when the charging device is in operating mode. That is, the controller can control the charging device to enter standby mode or power-off mode under appropriate circumstances to ensure that the charging device does not consume excessive energy from the starter battery, and that the starter battery's energy is not excessively consumed, thereby ensuring that the starter battery can always start the vehicle normally.

[0023] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram illustrating an application scenario of the charging device provided in some embodiments of this application;

[0026] Figure 2 These are schematic diagrams of modules and application scenarios of charging devices provided in certain embodiments of this application.

[0027] Explanation of key component symbols:

[0028] Energy storage system 1000;

[0029] Charging device 100; energy storage device 200; vehicle 2000; power supply module 2001; starting battery 2002;

[0030] Power input port A1; Power output port A2; Detection port A3;

[0031] Controller 10; Button 20; Voltage conversion circuit 30; Auxiliary power module 40. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2 This is an application scenario diagram of a charging device 100 provided in an embodiment of this application. The application scenario provided in this application includes a vehicle 2000 and an energy storage system 1000. The energy storage system 1000 includes an energy storage device 200 and a charging device 100, and the energy storage device 200 and the charging device 100 are connected.

[0034] Vehicle 2000 includes gasoline-powered vehicles, hybrid vehicles, and electric vehicles. Gasoline-powered vehicles, hybrid vehicles, and electric vehicles can all generate redundant power. For example, gasoline-powered vehicles and hybrid vehicles have generators; when the generator's output power exceeds the vehicle 2000's driving needs (such as high-speed cruising or downhill coasting), the excess output power is considered redundant power. As another example, electric vehicles and hybrid vehicles have motors; when the vehicle 2000 decelerates or brakes, the motor switches to generator mode, recovering kinetic energy and converting it into electrical energy, thus generating redundant power. Therefore, the power supply module 2001 of vehicle 2000 includes a generator or a motor; the generator includes generators from gasoline-powered vehicles and hybrid vehicles, and the motor includes motors from electric vehicles or hybrid vehicles.

[0035] The generators include intelligent generators and non-intelligent generators. Intelligent generators are equipped with electronic control units that can intelligently adjust the generator's output power according to the vehicle's power demand. For example, during acceleration, the intelligent generator adjusts its power generation based on the engine load, while at idle, it reduces the load to improve fuel efficiency and reduce unnecessary energy waste. Non-intelligent generators typically rely on traditional mechanical regulation methods, resulting in a relatively fixed output power that cannot be intelligently adjusted according to the vehicle's power demand. The load of a non-intelligent generator is primarily determined by the engine speed, making it less efficient than an intelligent generator.

[0036] Energy storage device 200 refers to a device capable of storing electrical energy. It typically includes a rechargeable battery. By storing a large amount of electrical energy within the battery, the energy storage device 200 can output the stored energy when needed. Energy storage device 200 may include a battery module and a processor. The battery module stores the electrical energy, while the processor controls and manages the battery module, as well as other components of the energy storage device 200.

[0037] The charging device 100 is a device that utilizes the redundant power generated during the driving of the vehicle 2000 to charge the external energy storage device 200. Its core objective is to recover previously wasted energy (such as excess engine power, braking energy, and deceleration coasting energy) to power other devices. The charging device 100 can be installed in the engine compartment, under the seats, or in the trunk of the vehicle 2000, without limitation. One end of the charging device 100 is connected to the power supply module 2001 of the vehicle 2000, and the other end is connected to the energy storage device 200, so as to utilize the redundant power of the power supply module 2001 of the vehicle 2000 to charge the energy storage device 200.

[0038] Based on the above description of the relevant scenarios, this application provides a charging device 100, which will be described in detail below:

[0039] Please see Figure 1 and Figure 2 The charging device 100 provided in this embodiment is used to connect to a vehicle 2000. When the charging device 100 is connected to the vehicle 2000, it is connected in series with the power supply module 2001 of the vehicle 2000 and in parallel with the starting battery 2002 of the vehicle 2000. The charging device 100 includes a power input port A1, a detection port A3, a power output port A2, a button 20, and a controller 10. The power input port A1 is used to connect to the power supply module 2001 of the vehicle 2000. The detection port A3 is used to connect to the starting module of the vehicle 2000 and to receive a start signal sent by the starting module, which is used to start the vehicle 2000. The power output port A2 is used to connect to the energy storage device 200. The button 20 is connected to the controller 10. The controller 10 is configured to control the charging device 100 to enter standby mode or power-off mode based on the start signal, the voltage of the start battery 2002, the press duration of the button 20, and the standby duration when the charging device 100 is in the working mode.

[0040] Specifically, the charging device 100 includes a working mode, a standby mode, and a power-off mode. In the working mode, most of the devices inside the charging device 100 are operational. In the standby mode, all devices except the controller 10 and the auxiliary power module 40 cease operation; the controller 10 operates at low power but retains some functions for quick wake-up or power-off. In the power-off mode, all devices inside the charging device 100 cease operation.

[0041] The starting module is used to start the vehicle 2000. Some vehicle 2000 starting modules can send out a starting signal when starting the vehicle 2000, where the starting signal refers to an electrical signal. For example, the starting signal includes an ignition signal (IGN-ON) and / or an accessory power supply signal (ACC). The ignition signal indicates that the core control system and sensors of the vehicle 2000 are powered, preparing or maintaining engine operation; it is an essential power position for driving. The accessory power supply signal indicates that the non-core accessory equipment of the vehicle 2000 is powered to meet the needs of parking or short-term use.

[0042] For example, in a vehicle 2000 that requires a key for ignition, the ignition switch is the starting module. The ignition switch connects the circuit via physical contacts. At this time, the ignition switch can be triggered to different positions and output signals via a mechanical knob. These positions include ACC and IGN-ON. When in ACC position, the ignition switch sends an accessory power supply signal; when in IGN-ON position, the ignition switch sends an ignition signal. For vehicles 2000 with keyless start / electronic ignition, the starting module includes a vehicle controller, body control module (BCM), or integrated power management unit. When the starting module receives an ignition command from the user, it sends an ignition signal; when it receives a power supply command from the user, it sends an accessory power supply signal.

[0043] The power input port A1 is connected to the power supply module 2001 of the vehicle 2000, and the power output port A2 is connected to the energy storage device 200, for example, to the battery module of the energy storage device 200. The electrical energy of the power supply module 2001 enters the charging device 100 through the power input port A1. After adjusting the electrical energy of the power supply module 2001, the charging device 100 delivers the electrical energy to the energy storage device 200 through the power output port A2, thereby supplying power to the energy storage device 200.

[0044] Detection port A3 can be connected to the start module of vehicle 2000, for example, via a communication line. When the start module starts vehicle 2000, it can send a high-level signal to detection port A3 via the communication line; this high-level signal is the start signal. Alternatively, the start module can be connected to the bus system of vehicle 2000. With detection port A3 connected to the bus system, the start module can send a start message to the bus system; this message is the start signal. When detection port A3 receives the start message through the bus system, it can be considered that the start signal has been received.

[0045] Button 20 is connected to controller 10. When the user presses button 20 for a long time, button 20 can send a signal to controller 10.

[0046] When the charging device 100 is connected to the vehicle 2000, the charging device 100 is connected in series with the power supply module 2001 of the vehicle 2000 and in parallel with the starting battery 2002 of the vehicle 2000. Simultaneously, the starting battery 2002 of the vehicle 2000 is connected in series with the power supply module 2001, making the voltage of the starting battery 2002 the same as the output voltage of the power supply module 2001. Therefore, if the power supply capacity of the power supply module 2001 is insufficient, or the voltage of the starting battery 2002 is low, and the charging device 100 still operates at a high power, it may result in a low voltage in the starting battery 2002. If the voltage of the starting battery 2002 is low, the starting battery 2002 may subsequently fail to start the vehicle 2000 properly.

[0047] Therefore, when the charging device 100 is in working mode, the controller 10 can control the charging device 100 to enter standby mode or power-off mode based on the start signal, the voltage of the start battery 2002, the pressing duration of the button 20 and the standby duration.

[0048] The start signal can be used to detect whether the vehicle 2000 is turned off. When the vehicle 2000 is turned off, the charging device 100 can be controlled to enter standby mode or power-off mode so as to reduce the energy consumption of the charging device 100 in time when the vehicle 2000 is turned off and the power supply module 2001 stops working, thereby avoiding excessive consumption of the starting battery 2002.

[0049] The voltage of the starter battery 2002 can directly reflect the electrical energy of the starter battery 2002. Therefore, the controller 10 can control the charging device 100 to enter standby mode or power-off mode according to the voltage of the starter battery 2002, so as to avoid excessive consumption of the electrical energy of the starter battery 2002.

[0050] The duration of pressing button 20 can reflect the user's usage intention, so the controller 10 can control the charging device 100 to enter standby mode or power-off mode according to the duration of pressing button 20.

[0051] If the standby time is too long, it can be assumed that the user's willingness to use the device is not high. At this time, the controller 10 can control the charging device 100 to enter the power-off mode so that the energy consumption of the charging device 100 is reduced to 0, thereby avoiding excessive consumption of the power of the starting battery 2002.

[0052] The charging device 100 of this application is equipped with a button 20 and a detection port A3 capable of acquiring the start signal from the start module of the vehicle 2000. Simultaneously, the controller 10 can also acquire the voltage of the starter battery 2002. The controller 10 is configured to control the charging device 100 to enter a standby mode or a power-off mode based on the start signal, the voltage of the starter battery 2002, the duration of button 20 being pressed, and the standby time when the charging device 100 is in operating mode. That is, the controller 10 can control the charging device 100 to enter a standby mode or a power-off mode under appropriate circumstances to ensure that the charging device 100 does not consume excessive energy from the starter battery 2002, and that the energy of the starter battery 2002 is not excessively consumed, thereby ensuring that the starter battery 2002 can always start the vehicle 2000 normally.

[0053] Alternatively, please refer to Figure 1 and Figure 2 The controller 10 is configured to determine that the power supply module 2001 is a smart generator or motor when the detection port A3 can receive a start signal, and to determine that the power supply module 2001 is a non-smart generator when the detection port A3 cannot receive a start signal.

[0054] Specifically, the starting module is used to start the vehicle 2000. Some vehicle 2000 starting modules can send out a starting signal when starting the vehicle 2000, where the starting signal refers to an electrical signal. For example, the starting signal includes an ignition signal (IGN-ON) and / or an accessory power supply signal (ACC). The ignition signal indicates that power is supplied to the core control system and sensors of the vehicle 2000, preparing or maintaining engine operation; it is an essential power position for driving. The accessory power supply signal indicates that power is provided to the non-core accessory equipment of the vehicle 2000 to meet the needs of parking or short-term use.

[0055] For example, in a vehicle 2000 that requires a key for ignition, the ignition switch is the starting module. The ignition switch connects the circuit via physical contacts. At this time, the ignition switch can be triggered to different positions and output signals via a mechanical knob. These positions include ACC and IGN-ON. When the position is ACC, the ignition switch sends an accessory power supply signal; when the position is IGN-ON, the ignition switch sends an ignition signal. For a vehicle 2000 with keyless start / electronic ignition, the starting module includes a vehicle controller 10, a body control module (BCM), or an integrated power management unit. When the starting module receives an ignition command from the user, it sends an ignition signal; when it receives a power supply command from the user, it sends an accessory power supply signal.

[0056] Detection port A3 can be connected to the start module of vehicle 2000, for example, via a communication line. When the start module starts vehicle 2000, it can send a high-level signal to detection port A3 via the communication line; this high-level signal is the start signal. Alternatively, the start module can be connected to the bus system of vehicle 2000. With detection port A3 connected to the bus system, the start module can send a start message to the bus system; this message is the start signal. When detection port A3 receives the start message through the bus system, it can be considered that the start signal has been received.

[0057] The ACC / IGN-ON signal of a non-intelligent generator is essentially a mechanical signal, while the ACC / IGN-ON signal of an intelligent generator or motor is an electrical signal. The signal received by detection port A3 is an electrical signal. Therefore, a vehicle 2000 equipped with a non-intelligent generator cannot send a start signal to detection port A3, while a vehicle 2000 equipped with an intelligent generator or motor can send a start signal to detection port A3.

[0058] The detection port A3 can communicate with the controller 10. Therefore, the controller 10 can determine the type of the power supply module 2001 by whether the detection port A3 can receive a start signal. If the detection port A3 can receive a start signal, the controller 10 determines that the power supply module 2001 is a smart generator or a motor. If the detection port A3 cannot receive a start signal, the controller 10 determines that the power supply module 2001 is a non-smart generator.

[0059] Furthermore, when it is determined that the power supply module 2001 is a smart generator or a motor, it can be determined whether the power supply module 2001 is a smart generator or a motor based on the different characteristics of the vehicle 2000 when the smart generator and motor are installed. In some embodiments, when it is determined that the power supply module 2001 is a smart generator or a motor, it can also be determined based on the message content in the bus system. The message content of the vehicle 2000 when the smart generator and motor are installed is different. For example, a typical message for a smart generator includes a request frame and a response frame. Wherein. Request frame: The ECU sends the generator target voltage / current (e.g., CAN ID 0x2F0, data [01 45] indicates an output of 45A). Response frame: The generator feedback status (e.g., CAN ID 0x2F1, data [00 13 88] indicates an output voltage of 13.8V). Typical messages for a motor system include torque command and energy flow. Wherein, torque command: The VCU sends the motor target torque (e.g., CAN ID 0x1A0, data [FF 80] indicates -50% torque recovery). Energy flow: The high-voltage battery interacts with the motor (e.g., CAN ID 0x1B0, data [01 0F] indicates a charging power of 15kW). The controller 10 communicates with the bus system of the vehicle 2000. The controller 10 can obtain messages in the bus system and determine whether the power supply module 2001 is a smart generator or a motor based on the message content.

[0060] Thus, the controller 10 can determine the type of the power supply module 2001 based on the start signal and message content, so as to perform corresponding control actions according to the type of the power supply module 2001, such as obtaining different thresholds, thereby improving the efficiency of the power supply module 2001.

[0061] Alternatively, please refer to Figure 1 and Figure 2 When the power supply module 2001 is a smart generator or motor, and the charging device 100 is in working mode, the controller 10 controls the charging device 100 to enter standby mode if at least one of the following conditions is met:

[0062] The detection port A3 did not receive a start signal, or the voltage of the starter battery 2002 of vehicle 2000 was less than the first preset voltage threshold.

[0063] Specifically, when the charging device 100 is connected to the vehicle 2000, the charging device 100 is connected in series with the power supply module 2001 of the vehicle 2000 and in parallel with the starting battery 2002 of the vehicle 2000. Therefore, when the output power of the power supply module 2001 is low and the output power of the charging device 100 is high, the starting battery 2002 may charge the charging device 100. However, if the power of the starting battery 2002 is too low, the starting battery 2002 will be unable to start the vehicle 2000 normally.

[0064] The first preset voltage threshold is a safety lower limit warning value for the voltage of the starting battery 2002 when the power supply module 2001 of the vehicle 2000 is a smart generator or a motor. The first preset voltage threshold is used to trigger standby mode to reduce power consumption, extend usage time, and prevent the charging device 100 from consuming too much power from the starting battery 2002. For example, the first preset voltage threshold is 11.8V / 22.8V. The first preset voltage threshold may be different for smart generators and motors.

[0065] When no start signal is detected at detection port A3, it can be assumed that the power supply module 2001 is no longer supplying power. At this time, the controller 10 controls the charging device 100 to enter standby mode. Thus, once the vehicle 2000 stops running, the charging device 100 will enter standby mode to reduce the power consumption of the charging device 100, thereby preventing the charging device 100 from draining the car starter battery 2002.

[0066] The controller 10 can acquire the voltage of the starter battery 2002. For example, the processor of the vehicle 2000 acquires the voltage of the starter battery 2002 through a sensor. The processor is communicatively connected to the controller 10, and sends the acquired voltage of the starter battery 2002 to the controller 10. Alternatively, a corresponding detection circuit can be set between the controller 10 and the starter battery 2002. When the voltage of the starter battery 2002 is greater than a second preset threshold, the detection circuit can send a high-level signal to the controller 10. In this way, the controller 10 can determine whether the voltage of the starter battery 2002 is less than a first preset voltage threshold based on the level signal transmitted by the detection circuit.

[0067] When the controller 10 determines that the voltage of the starting battery 2002 of the vehicle 2000 is lower than the first preset voltage threshold, it is possible that the power supply module 2001 is not working, or the output power of the power supply module 2001 is low, resulting in a low voltage of the starting battery 2002. Therefore, the controller 10 controls the charging device 100 to enter standby mode to reduce the power consumption of the charging device 100. This ensures that when the power supply module 2001 is not working, the charging device 100 will not draw excessive power from the starting battery 2002; and when the power supply module 2001 is working but its output power is low, the charging device 100 will not draw excessive power from the power supply module 2001. This allows more power from the power supply module 2001 to flow into the starting battery 2002, ensuring that the voltage of the starting battery 2002 can quickly rise above the first preset voltage threshold.

[0068] If any of the above conditions are met, the controller 10 will control the charging device 100 to enter standby mode.

[0069] In this way, the power supply module 2001 of the vehicle 2000 can be set as the entry condition for standby mode when it is a smart generator or motor, so as to ensure that the charging device 100 can enter standby mode at an appropriate time, thereby reducing the energy consumption of the charging device 100 and not affecting the normal operation of other devices of the vehicle 2000.

[0070] Alternatively, please refer to Figure 1 and Figure 2 When the power supply module 2001 is a non-intelligent generator and the charging device 100 is in working mode, if the voltage of the starting battery 2002 of the vehicle 2000 is less than the second preset voltage threshold, the controller 10 controls the charging device 100 to enter standby mode.

[0071] Specifically, the second preset voltage threshold is the safety lower limit warning value of the voltage of the starting battery 2002 when the power supply module 2001 of the vehicle 2000 is a non-intelligent generator. The second preset voltage threshold is used to trigger the standby mode to reduce power consumption, extend the usage time, and prevent the charging device 100 from consuming too much power of the starting battery 2002. For example, the second preset voltage threshold is 12.5V or 24V.

[0072] When the voltage of the starting battery 2002 of the vehicle 2000 is lower than the second preset voltage threshold, the power supply module 2001 may not be working, or the output power of the power supply module 2001 may be low, resulting in a low voltage of the starting battery 2002. Therefore, the controller 10 controls the charging device 100 to enter standby mode to reduce the power consumption of the charging device 100. This ensures that when the power supply module 2001 is not working, the charging device 100 will not draw too much power from the starting battery 2002. When the power supply module 2001 is working but the output power is low, the charging device 100 will not draw too much power from the power supply module 2001. This allows more power from the power supply module 2001 to flow into the starting battery 2002, ensuring that the voltage of the starting battery 2002 can quickly rise above the second preset voltage threshold.

[0073] In this way, the conditions for entering the standby mode when the power supply module 2001 of the vehicle 2000 is a non-intelligent generator can be set to ensure that the charging device 100 can enter the standby mode at an appropriate time, thereby reducing the energy consumption of the charging device 100 and not affecting the normal operation of other devices of the vehicle 2000.

[0074] Alternatively, please refer to Figure 1 and Figure 2 When the charging device 100 is in working mode, if the pressing time of button 20 exceeds the first preset time, the controller 10 controls the charging device 100 to enter the power-off mode.

[0075] Specifically, when the power supply module 2001 is a non-intelligent generator, the starting of the charging device 100 is not controlled by the starting signal of the vehicle 2000. When the charging device 100 is in working mode, the user can turn off the charging device 100 by pressing button 20.

[0076] The first preset duration is used to determine whether the user wants to turn off the charging device 100 when it is in working mode. When the charging device 100 is in working mode, if the pressing duration of button 20 exceeds the first preset duration, for example, 3 seconds, the controller 10 can assume that the user needs to turn off the charging device 100 directly, and can control the charging device 100 to enter the shutdown mode.

[0077] Thus, when the power supply module 2001 is a non-intelligent generator, the user can turn off the charging device 100 by pressing button 20.

[0078] Alternatively, please refer to Figure 1 and Figure 2 When the charging device 100 is in standby mode, the controller 10 controls the charging device 100 to enter the power-off mode if at least one of the following conditions is met:

[0079] If the duration of pressing button 20 in standby mode exceeds the second preset duration, the duration of standby mode exceeds the third preset duration, or the voltage of the starting battery 2002 of vehicle 2000 is less than the third preset voltage threshold, and the third preset voltage threshold is less than the first preset voltage threshold.

[0080] The second preset duration is the shortest pressing duration of button 20 when it can be determined that the user really wants to turn off the device, for example, 3 seconds.

[0081] The third preset duration is the shortest duration during which the user will not charge the energy storage device 200 in a short period of time, for example, 24 hours.

[0082] The third preset voltage threshold is the absolute protection lower limit of the voltage of the starter battery 2002, which is the minimum voltage at which the starter battery 2002 can start the vehicle 2000, for example, 11.5V or 22.5V. The third preset voltage threshold is less than the preset voltage threshold corresponding to the entry condition of the standby mode, that is, less than the first preset voltage threshold and the second preset voltage threshold mentioned above.

[0083] It should be noted that the power supply module 2001 at this time is not restricted and can be a motor, a smart generator or a non-smart generator, but the threshold values ​​corresponding to the motor, smart generator or non-smart generator can be different.

[0084] Specifically, the controller 10 can obtain the pressing duration of the button 20. If the pressing duration of the button 20 exceeds the second preset duration in the standby state, it can be considered that the user has turned off the device by pressing the button 20. At this time, the controller 10 can control the charging device 100 to enter the power-off mode.

[0085] The controller 10 can record the duration of the standby mode. If the duration of the standby mode exceeds the third preset duration, it can be assumed that the user will not charge the energy storage device 200 in a short period of time. At this time, the controller 10 can control the charging device 100 to enter the shutdown mode.

[0086] If the voltage of the starting battery 2002 of the vehicle 2000 is less than the third preset voltage threshold, it can be assumed that the starting battery 2002 cannot start the vehicle 2000 normally. At this time, the controller 10 can control the charging device 100 to enter the shutdown mode to completely eliminate the possibility of the charging device 100 consuming the starting battery 2002.

[0087] If any of the above conditions are met, the controller 10 will control the charging device 100 to enter the power-off mode.

[0088] Thus, by setting the conditions for entering the shutdown mode, it can be ensured that the charging device 100 can enter the shutdown mode at an appropriate time, so as to ensure that the charging device 100 can be shut down in time, prevent the charging device 100 from being idle for a long time, and prevent the charging device 100 from exhausting the power of the starter battery 2002.

[0089] Alternatively, please refer to Figure 1 and Figure 2 The charging device 100 also includes a voltage conversion circuit 30, which is located on the line between the power input port A1 and the power output port A2. The voltage conversion circuit 30 is used to adjust the output voltage and output current of the power output port A2. The controller 10 is configured to adjust the operating parameters of the voltage conversion circuit 30 according to the output power of the power supply module 2001, the output voltage of the power supply module 2001 and a fourth preset voltage threshold, so that the voltage of the starting battery 2002 is greater than the fourth preset voltage threshold.

[0090] Specifically, when the output power of the power supply module 2001 is low and the output power of the charging device 100 is high, it may cause the starting battery 2002 to charge the charging device 100. However, if the power of the starting battery 2002 is too low, the starting battery 2002 will be unable to start the vehicle 2000 normally.

[0091] The fourth preset voltage threshold is a safety lower limit warning value for the voltage of the start-up battery 2002. This threshold is used to trigger standby mode to reduce power consumption, extend usage time, and prevent the charging device 100 from consuming excessive power from the start-up battery 2002. Since the redundant power and output voltage of the intelligent generator, non-intelligent generator, and motor may differ depending on the operating mode, for example, the output voltage of the intelligent generator may be relatively low, while the output voltage of the non-intelligent generator may be relatively high. Therefore, in some embodiments, to improve the efficiency of the power supply module 2001, the fourth preset voltage thresholds corresponding to the intelligent generator, non-intelligent generator, and motor may be different.

[0092] Different models of the same type of generator may output different voltages. For example, some smart generators output 12V, while others output 24V. Therefore, a fourth preset voltage threshold can be determined based on the specific performance of the generator. For instance, the fourth preset voltage threshold for a smart generator might be 11.8V (for a 12V output) or 22.8V (for a 24V output), while for a non-smart generator it might be 12.5V or 24V. The specific value needs to be determined in conjunction with the generator's performance.

[0093] The voltage conversion circuit 30, also known as a buck-boost module, functions by dynamically adjusting voltage and current to efficiently convert the unstable electrical energy output from the vehicle's generator or hybrid system into stable electrical energy suitable for charging energy storage devices 200 (such as power batteries, auxiliary batteries, etc.). The voltage conversion circuit 30 is connected to the power supply output port A2. Through dual closed-loop control of the voltage and current loops, the voltage conversion circuit 30 dynamically adjusts the PWM duty cycle to regulate its output voltage and current, thereby adjusting the output voltage and current of the power supply output port A2. The operating parameters of the voltage conversion circuit 30 refer to parameters that affect its output voltage and current, such as the target voltage of the voltage loop and the target current of the current loop.

[0094] For example, when the generator's voltage, i.e., the voltage at the power input port A1, is lower than the demand of the energy storage device 200, the circuit conversion circuit can increase the output voltage so that the output voltage at the power output port A2 matches the demand of the energy storage device 200. For instance, if the voltage at the power input port A1 is 12V and the energy storage device 200 requires 48V, then the voltage conversion circuit 30 can adjust the voltage at the power output port A2 to 48V. Specifically, the generator's output power matches the output power of the power output port A2; therefore, when the generator operates at a certain power, the output power of the power output port A2 is fixed. Thus, with a fixed output power, when the output voltage at the power output port A2 is higher than the generator's output voltage, the output current at the power output port A2 is smaller. Based on the proportional relationship between heat and current, it can be concluded that the energy consumption during the power supply process from the charging device 100 to the energy storage device 200 is lower.

[0095] For example, when the generator's voltage, i.e., the voltage at the power input port A1, is higher than the demand of the energy storage device 200, the circuit conversion circuit can reduce the output voltage so that the output voltage at the power output port A2 matches the demand of the energy storage device 200. For instance, if the voltage at the power input port A1 is 28V and the demand of the energy storage device 200 is 24V, then the voltage conversion circuit 30 can adjust the voltage at the power output port A2 to 24V.

[0096] The controller 10 is configured to adjust the operating parameters of the voltage conversion circuit 30 according to the output power of the power supply module 2001 and the fourth preset voltage threshold, so that the voltage of the start-up battery 2002 is greater than the fourth preset voltage threshold.

[0097] The controller 10 can continuously monitor the output voltage of the power supply module 2001, which is the same as the output voltage of the power supply module 2001. The input voltage at the power supply input port A1 is the same as the output voltage of the power supply module 2001. The controller 10 can obtain the input voltage of the power supply input port A1, for example, by setting a voltage sensor at the power supply input port A1 or at the output port of the power supply module 2001 to determine the input voltage of the power supply input port A1.

[0098] The controller 10 can determine the redundant power of the power supply module 2001 based on its output power. Simultaneously, the controller 10 can also detect the output voltage of the power supply module 2001 to determine the difference between its output voltage and a fourth preset voltage threshold. If the difference is large, the redundant power is utilized as much as possible; that is, while meeting the charging requirements of the energy storage device 200 and ensuring that the output power of the power supply output port A2 is less than or equal to the redundant power, the output power of the power supply output port A2 is increased as much as possible to improve the charging power of the energy storage device 200. If the difference is small, the output power of the voltage conversion circuit 30 is reduced to decrease the energy consumption of the charging device 100, ensuring that more energy from the power supply module 2001 is delivered to the starting battery 2002, and that no energy from the starting battery 2002 is delivered to the charging device 100. This ensures that the voltage of the starting battery 2002 does not decrease further and remains above the fourth preset voltage threshold. Based on the above considerations, the controller 10 processes the output power of the power supply module 2001, the output voltage of the power supply module 2001, and the fourth preset voltage threshold to obtain the target output voltage and target output current of the voltage conversion circuit 30. The controller 10 then adjusts the parameters of the voltage conversion circuit 30 according to the target output voltage and target output current. For example, it adjusts the target values ​​of the voltage loop and the current loop according to the target output voltage and target output current, and correspondingly adjusts the PWM duty cycle to adjust the output voltage and output current of the power supply output port A2.

[0099] In this way, the controller 10 can determine the redundant power of the power supply module 2001 based on the output power of the power supply module 2001, and at the same time detect the output voltage of the power supply module 2001 and the fourth preset voltage threshold. By combining the redundant power of the power supply module 2001 and the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold, the controller 10 adjusts the operating parameters of the voltage conversion circuit 30. This ensures that after the voltage conversion circuit 30 adjusts the output voltage and output current of the power supply output port A2, the voltage of the starter battery 2002 is always greater than the fourth preset voltage threshold, and the power of the starter battery 2002 will not be too low, thereby ensuring that the starter battery 2002 can always start the vehicle 2000 normally.

[0100] Alternatively, please refer to Figure 1 and Figure 2 The controller 10 is configured to identify the type of the power supply module 2001, obtain a fourth preset voltage threshold according to the type of the power supply module 2001, determine the target output voltage and target output current of the power supply output port A2 corresponding to the power supply module 2001 according to the charging requirements of the energy storage device 200, the output power of the power supply module 2001, the output voltage of the power supply module 2001 and the fourth preset voltage threshold corresponding to the power supply module 2001, and determine the operating parameters of the voltage conversion circuit 30 according to the target output voltage and target output current.

[0101] The charging requirements of the energy storage device 200 include the requirements for charging power, charging voltage, or charging current when the energy storage device 200 can be charged normally. For example, the charging requirements of the energy storage device 200 include the maximum allowable charging current, the maximum allowable charging voltage, or the maximum allowable charging power.

[0102] Specifically, the controller 10 can identify the type of the power supply module 2001 according to the above method and obtain the fourth preset voltage threshold corresponding to the power supply module 2001. Then, the redundant power of the power supply module 2001 can be determined according to the output power of the power supply module 2001, for example, the redundant power of the power supply module 2001 can be determined according to the difference between the output power of the power supply module 2001 and the total power consumption of the electrical equipment of the vehicle 2000. At the same time, the output voltage of the power supply module 2001 is obtained to determine the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold.

[0103] Next, the target output power of the power supply output port A2 is determined based on the difference between the redundant power and the output voltage of the power supply module 2001 and the fourth preset voltage threshold. For example, when the difference is large, it is sufficient to ensure that the target output power is less than or equal to the redundant power and that the target output power meets the charging requirements of the energy storage device 200. When the difference is small, the target output power is reduced while ensuring that it is less than or equal to the redundant power, so as to reduce the energy consumption of the charging device 100 and allow more electrical energy from the power supply module to flow into the start-up battery 2002, preventing the voltage of the start-up battery 2002 from dropping below the fourth preset voltage threshold.

[0104] The target current and target voltage can be determined based on the charging requirements of the energy storage device 200, and then the other target current and target voltage can be determined by combining the target output power. For example, when the redundant power of the power supply module 2001 is large, the target current can be determined based on the maximum allowable charging current to improve the charging rate. The target voltage can be obtained by combining the target output power and the target current. Alternatively, when the redundant power of the power supply module 2001 is large, the target voltage can be determined based on the maximum allowable charging voltage to improve the charging rate. The target current can be obtained by combining the target output power and the target voltage. Finally, the controller 10 can adjust the operating parameters of the voltage conversion module according to the target current and target voltage.

[0105] In this way, the controller 10 can ensure that the output voltage and output current of the power supply output port A2 can meet the charging requirements of the energy storage device 200. At the same time, it can also ensure that the output power of the charging device 100 is adjusted in real time according to the real-time power of the power supply module 2001, so that the charging device 100 does not consume too much power from the power supply module 2001, thereby ensuring the normal operation of other electrical equipment in the vehicle 2000. In addition, during the adjustment process, the controller 10 will also detect the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold in real time, so as to promptly detect and execute the corresponding operation when the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is too small, thereby ensuring that the voltage of the starting battery 2002 is greater than the fourth preset voltage threshold, and the starting battery 2002 can always operate normally.

[0106] Alternatively, please refer to Figure 1 and Figure 2 The controller 10 is configured to determine the redundant power of the power supply module 2001 based on its output power when the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is greater than the preset difference threshold, so as to determine the target output power of the power supply output port A2 based on the redundant power and the charging requirements of the energy storage device 200, and to determine the target output voltage and target output current of the power supply output port A2 based on the target output power and the charging requirements of the energy storage device 200.

[0107] The preset difference threshold is the minimum difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold when the voltage of the starting battery 2002 is unlikely to drop below the fourth preset voltage threshold in a short period of time.

[0108] Specifically, when the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is greater than the preset difference threshold, the controller 10 can consider that the output capability of the power supply module 2001 is strong, and the possibility that the voltage of the start-up battery 2002 will drop below the fourth preset voltage threshold in a short period of time is small. Therefore, there is no need to adjust the output voltage and output current of the power supply output port A2 according to the voltage of the start-up battery 2002.

[0109] The controller 10 can determine the target output power of the power supply output port A2 based on the redundant power. The target output power can be less than or equal to the redundant power. For example, the maximum allowable charging power of the energy storage device 200 can be obtained. When the redundant power is less than or equal to the maximum allowable charging power, the target output power is determined to be the redundant power. When the redundant power is greater than the maximum allowable charging power, the target output power is determined to be the maximum allowable charging power.

[0110] Then, based on the charging requirements of the energy storage device 200, one of the target current and the target voltage can be determined, and the other of the target current and the target voltage can be determined in conjunction with the target output power. If the energy storage device 200 currently requires charging current, the target current is determined based on the charging current, and then the target voltage is determined based on the target current and the target output power. If the energy storage device 200 currently requires charging voltage, the target voltage is determined based on the charging voltage, and then the target current is determined based on the target voltage and the target output power.

[0111] Thus, when the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is greater than the preset difference threshold, the controller 10 can determine the target current and target voltage of the power supply output port A2 according to the redundant power of the power supply module and the charging requirements of the energy storage device 200, so as to ensure that the charging device 100 does not consume too much power of the power supply module, other electrical equipment of the vehicle 2000 can operate normally, and the energy storage device 200 can also be charged normally.

[0112] Alternatively, please refer to Figure 1 and Figure 2 The controller 10 is configured to determine the redundant power of the power supply module 2001 based on its output power when the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is less than the preset difference threshold, and to determine the target output power based on the current output power of the power supply output port A2. The target output power is less than the current output power of the power supply output port A2, and the target output power is less than the redundant power. The controller 10 is also configured to determine the target output voltage and target output current of the power supply output port A2 based on the target output power and the charging requirements of the energy storage device 200.

[0113] Specifically, if the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is less than the preset difference threshold, the controller 10 may assume that the voltage of the start-up battery 2002 is likely to drop below the fourth preset voltage threshold in a short period of time, and the output voltage and output current of the power supply output port A2 need to be adjusted according to the voltage of the start-up battery 2002.

[0114] At this point, the target output power can be determined based on the current output power of power supply output port A2. The target output power is determined if it is less than the current output power of power supply output port A2. For example, the target output power can be determined based on the difference between the current output power and a preset step size, or based on the product of the current output power and a preset ratio less than 1. Simultaneously, the redundancy power of power supply module 2001 is determined based on its output power to ensure that the target output power is less than the redundancy power. If the target output power is greater than the redundancy power, the target output power is adjusted to the redundancy power. If the target output power is less than the redundancy power, no further adjustment to the target output power is required.

[0115] Next, one of the target current and the target voltage can be determined based on the charging requirements of the energy storage device 200, and then the other of the target current and the target voltage can be determined in combination with the target output power.

[0116] Thus, when the difference between the output voltage of the power supply module 2001 and the fourth preset voltage threshold is less than the preset difference threshold, the controller 10 reduces the output power of the charging device 100 to reduce the energy consumption of the charging device 100 and the energy storage device 200, ensuring that more electrical energy from the power supply module is delivered to the start-up battery 2002, and the start-up battery 2002 will not charge the charging device 100, thereby ensuring that the voltage of the start-up battery 2002 will not decrease further.

[0117] Alternatively, please refer to Figure 1 and Figure 2 The charging device 100 also includes an auxiliary power module 40, which is configured to supply power to the controller 10.

[0118] Specifically, the charging device 100 includes an auxiliary power module 40, which is mainly used to provide stable power to low-power components such as control circuits, protection circuits, and communication modules inside the module, so as to ensure that the charging device 100 can work reliably when the vehicle 2000 is started, turned off, or in standby mode.

[0119] The user can send a start command to the charging device 100, for example, by pressing and holding button 20 of the charging device 100 to trigger the auxiliary power module 40 to work. Then, the auxiliary power module 40 can supply power to the controller 10 to start the controller 10. The controller 10 can power on the system so as to control the voltage conversion circuit 30 to output electrical energy at any time to charge the energy storage device 200.

[0120] Thus, the charging device 100 may be equipped with an auxiliary power module 40, which can provide stable power to each module of the charging device 100 in order to ensure the normal operation of the charging device 100.

[0121] Alternatively, please refer to Figure 1 and Figure 2 The controller 10 is used to activate the voltage conversion circuit 30 when the output voltage of the power supply module 2001 is greater than the fifth preset voltage threshold.

[0122] Specifically, the power supply module 2001 is mainly used to supply power to various electrical devices of the vehicle 2000. The fifth preset voltage threshold is the minimum voltage required for the power supply module 2001 to supply power to all electrical devices of the vehicle 2000, for example, 12.5V or 25V. In some embodiments, the fifth preset voltage thresholds for the intelligent generator, non-intelligent generator, and motor are different. Due to different operating modes, the redundant power of the intelligent generator, non-intelligent generator, and motor may be different, and their output voltages may also be different. For example, the output voltage of the intelligent generator is relatively low, and the output voltage of the non-intelligent generator is relatively high. Therefore, in some embodiments, to improve the efficiency of the power supply module 2001, the fifth preset voltage thresholds for the intelligent generator, non-intelligent generator, and motor may be different. Different models of the same type of generator also output different voltages. For example, some intelligent generators output 12V, and some intelligent generators output 24V. Therefore, the corresponding fifth preset voltage threshold can also be determined according to the specific performance of the generator. For example, the fifth preset voltage threshold for a smart generator is 12.5V or 25V, while the fifth preset voltage threshold for a non-smart generator is 13.5V or 26V. The specific values ​​need to be determined based on the generator's performance.

[0123] The input voltage at power input port A1 is the output voltage of power supply module 2001. Controller 10 can obtain the input voltage at power input port A1, for example, by setting a voltage sensor at power input port A1 or at the output port of power supply module 2001 to determine the input voltage at power input port A1.

[0124] After the charging device 100 is powered on, it enters standby mode, at which point the voltage conversion circuit 30 has not yet started operating. When the charging device 100 is in standby mode and the input voltage at the power input port A1 is less than the fifth preset voltage threshold, the controller 10 considers that the output power of the power supply module 2001 is insufficient to meet the needs of the various electrical devices in the vehicle 2000, therefore it does not wake up the voltage conversion circuit 30, and the charging device 100 remains in standby mode. When the input voltage at the power input port A1 is greater than the fifth preset voltage threshold, the controller 10 considers that the output power of the power supply module 2001 is sufficient to meet the needs of the various electrical devices in the vehicle 2000, and that there is redundancy in the output power. Therefore, it can wake up the voltage conversion circuit 30 to charge the energy storage device 200, at which point the charging device 100 enters operating mode.

[0125] Thus, by judging the fifth preset voltage threshold, the controller 10 can ensure that the energy storage device 200 is powered without affecting the power consumption of the various electrical devices of the vehicle 2000, thereby ensuring the normal operation of the vehicle 2000.

[0126] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A charging device, characterized in that, For connection to a vehicle, wherein, when the charging device is connected to the vehicle, the charging device is connected in series with the vehicle's power supply module and in parallel with the vehicle's starting battery, the charging device comprising: A power input port, which is used to connect to the vehicle's power supply module; A detection port is provided, which is used to connect to the vehicle's start module and to receive a start signal sent by the start module, which is used to start the vehicle. A power output port, which is used to connect to an energy storage device; button; A controller, wherein the button is connected to the controller, and the controller is configured to control the charging device to enter standby mode or power-off mode based on the start signal, the voltage of the start battery, the press duration of the button and the standby duration when the charging device is in working mode; The vehicles include gasoline vehicles, hybrid vehicles, and electric vehicles. The power supply module includes a generator or a motor. The generator includes the generator of the gasoline vehicle and the generator of the hybrid vehicle. The motor includes the motor of the electric vehicle or the motor of the hybrid vehicle. The generator includes a smart generator and a non-smart generator. The controller is configured to determine that the power supply module is a smart generator or motor when the detection port can receive the start signal, and to determine that the power supply module is a non-smart generator when the detection port cannot receive the start signal. The controller is communicatively connected to the vehicle's bus system; the controller is configured to determine whether the power supply module is a smart generator or a motor based on the message content of the bus system when it can receive the start signal.

2. The charging device according to claim 1, characterized in that, The start signal includes an ignition signal and / or an accessory power supply signal.

3. The charging device according to claim 1, characterized in that, When the power supply module is the intelligent generator or the motor, and the charging device is in operating mode, the charging device enters standby mode if at least one of the following conditions is met: The detection port does not receive the start signal, or the voltage of the vehicle's starter battery is less than a first preset voltage threshold.

4. The charging device according to claim 1, characterized in that, When the power supply module is the non-intelligent generator and the charging device is in working mode, if the voltage of the vehicle's starter battery is less than a second preset voltage threshold, the controller controls the charging device to enter standby mode.

5. The charging device according to claim 4, characterized in that, When the charging device is in working mode, if the duration of pressing the button exceeds a first preset duration, the controller controls the charging device to enter the power-off mode.

6. The charging device according to claim 3 or 4, characterized in that, When the charging device is in standby mode, the controller controls the charging device to enter power-off mode if at least one of the following conditions is met: In standby mode, the duration of pressing the button exceeds the second preset duration, the duration of the standby mode exceeds the third preset duration, or the voltage of the vehicle's starter battery is less than the third preset voltage threshold, and the third preset voltage threshold is less than the preset voltage threshold corresponding to the entry condition of the standby mode.

7. The charging device according to claim 1, characterized in that, The charging device further includes a voltage conversion circuit, which is located on the line between the power input port and the power output port. The voltage conversion circuit is used to adjust the output voltage and output current of the power output port. The controller is configured to adjust the operating parameters of the voltage conversion circuit according to the output power of the power supply module, the output voltage of the power supply module, and a fourth preset voltage threshold, so that the voltage of the start-up battery is greater than the fourth preset voltage threshold.

8. The charging device according to claim 7, characterized in that, The fourth preset voltage thresholds for the intelligent generator, the non-intelligent generator, and the motor are different.

9. The charging device according to claim 7, characterized in that, The controller is configured to identify the type of the power supply module, obtain the fourth preset voltage threshold according to the type of the power supply module, determine the target output voltage and target output current of the power supply output port corresponding to the power supply module according to the charging requirements of the energy storage system, the output power of the power supply module, the output voltage of the power supply module and the fourth preset voltage threshold corresponding to the power supply module, and determine the operating parameters of the voltage conversion circuit according to the target output voltage and target output current.

10. The charging device according to claim 9, characterized in that, The controller is configured to determine the redundant power of the power supply module based on the output power of the power supply module when the difference between the output voltage of the power supply module and the fourth preset voltage threshold is greater than a preset difference threshold, so as to determine the target output power of the power supply output port based on the redundant power. The target output voltage and target output current of the power supply output port are determined based on the target output power and the charging requirements of the energy storage system.

11. The charging device according to claim 9, characterized in that, The controller is configured to, when the difference between the output voltage of the power supply module and the fourth preset voltage threshold is less than a preset difference threshold, determine the redundant power of the power supply module based on the output power of the power supply module, and determine the target output power based on the current output power of the power supply output port, wherein the target output power is less than the current output power of the power supply output port and the target output power is less than the redundant power; and determine the target output voltage and target output current of the power supply output port based on the target output power and the charging requirements of the energy storage system.

12. The charging device according to claim 1, characterized in that, The charging device also includes an auxiliary power module configured to supply power to the controller.

13. The charging device according to claim 1, characterized in that, The controller is used to activate the voltage conversion circuit when the output voltage of the power supply module is greater than a fifth preset voltage threshold.

14. The charging device according to claim 13, characterized in that, The fifth preset voltage thresholds for the intelligent generator, the non-intelligent generator, and the battery are different.

15. An energy storage system, characterized in that, include: The charging device according to any one of claims 1-14; An energy storage device, which is connected to the charging device.

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