Intelligent fuse control method of vehicle and related device

Abstract

The invention provides an intelligent fuse control method of a vehicle and a related device. The method comprises the steps that braking torque information is generated in response to a braking signal; brake torque information is sent to a motor controller; the controller is used for indicating the motor controller to adjust the size and the phase of the first current provided for the wheel-side motor so as to drive the wheel-side motor to execute corresponding braking operation; acquiring a first current signal acquired by the main control unit from the first intelligent fuse; when it is determined that the first current signal exceeds the corresponding first fusing current threshold value, a first control signal is sent to the main control unit to instruct the main control unit to control the first intelligent fuse to be disconnected; acquiring a second current signal acquired by the main control unit from a second intelligent fuse; and when it is determined that the second current signal and the second temperature signal exceed the corresponding second fusing current threshold, a second control signal is sent to the main control unit to instruct the main control unit to control the second intelligent fuse to be disconnected.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to an intelligent fuse control method and related device for a vehicle. Background Art

[0002] The in-wheel motor of an electric vehicle has gradually become a standard configuration for high-end vehicles. In the electrical architecture system of the in-wheel motor, there is a drive control circuit module for the in-wheel motor. Each electrical module is designed for overcurrent protection and overtemperature protection. Specifically, common devices such as fuses, relays, and protection switches are selected for each circuit branch.

[0003] Currently, in the existing overcurrent protection design for the circuit of the in-wheel motor, a protection switch and a fuse are set between the main control unit and the power supply device, and a protection switch is set between the power supply device and the in-wheel motor controller. However, the fuse used in the existing technology has a single function and can only be passively blown when the current exceeds a certain threshold, thereby cutting off the circuit to protect the overall circuit of the in-wheel motor. Summary of the Invention

[0004] This application provides an intelligent fuse control method and related device for a vehicle, aiming to enable the vehicle controller to control the intelligent fuse according to different situations through intelligent processing, thereby improving the versatility of the intelligent fuse.

[0005] In a first aspect, this application provides an intelligent fuse control method for a vehicle, which is applied to a vehicle controller in a motor control circuit. The motor control circuit includes the vehicle controller, a motor controller, an in-wheel motor, a main control unit, a first intelligent fuse, and a second intelligent fuse. Among them, the vehicle controller is respectively connected to the first intelligent fuse and the main control unit. The first intelligent fuse is also respectively connected to the motor controller and the main control unit. The motor controller is also connected to the in-wheel motor. The main control unit is respectively connected to the first intelligent fuse and the second intelligent fuse. The intelligent fuse control method for the vehicle includes: Generating braking torque information in response to a braking signal; the braking signal includes the driving speed, acceleration, and state of charge of the vehicle battery; Sending the braking torque information to the motor controller; the braking torque information is used to instruct the motor controller to adjust the magnitude and phase of the first current provided to the in-wheel motor to drive the in-wheel motor to perform corresponding braking operations; Obtaining a first current signal collected by the main control unit from the first intelligent fuse; When it is determined that the first current signal exceeds the corresponding first fuse current threshold, a first control signal is sent to the master control unit, and the first control signal is used to instruct the master control unit to control the first intelligent fuse to disconnect; Obtain the second current signal collected by the master control unit from the second intelligent fuse; When it is determined that the second current signal exceeds the corresponding second fuse current threshold, a second control signal is sent to the master control unit, and the second control signal is used to instruct the master control unit to control the second intelligent fuse to disconnect.

[0006] Combined with the first aspect, in a possible embodiment, the intelligent fuse control method of the vehicle further includes: obtaining a mode selection signal input by a user from an in-vehicle terminal; switching the vehicle to a corresponding target driving mode according to the mode selection signal, and generating a corresponding first mode signal; the first mode signal is used to indicate the current driving mode of the vehicle, and a plurality of driving modes are stored in the vehicle controller, and the plurality of driving modes include the target driving mode; sending the first mode signal to the master control unit; the first mode signal is used to instruct the master control unit to update the first fuse current threshold of the first intelligent fuse to the first target parameter value corresponding to the target driving mode, and to instruct the master control unit to update the second fuse current threshold of the second intelligent fuse to the second target parameter value corresponding to the target driving mode.

[0007] Combined with the first aspect, in a possible embodiment, the motor control circuit further includes a sensor unit, and the sensor unit is respectively connected to the master control unit, the first intelligent fuse and the second intelligent fuse; the intelligent fuse control method of the vehicle further includes: obtaining a first temperature signal collected by the sensor unit; determining a first working state of the first intelligent fuse according to the first current signal and the first temperature signal; wherein, the first working state includes one or more of a normal state, an overcurrent state, a high temperature state and a current jump state; adjusting the electrical circuit corresponding to the wheel side motor according to the first working state.

[0008] In combination with the first aspect, in a possible embodiment, determining the first operating state of the first intelligent fuse according to the first current signal and the first temperature signal includes: when the first current signal is less than the second fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in a normal state; when the first current signal is greater than or equal to the second fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in an overcurrent state; when the first current signal is less than the second fusing current threshold and the first temperature signal is greater than or equal to the first temperature threshold, it is determined that the first intelligent fuse is in a high-temperature state; when the average difference between multiple first current signals within a first preset time is greater than or equal to a first preset value, it is determined that the first intelligent fuse is in a current jump state.

[0009] In combination with the first aspect, in a possible embodiment, the overcurrent state includes a first overcurrent state, a second overcurrent state, and a third overcurrent state; determining the first operating state of the first intelligent fuse according to the first current signal and the first temperature signal includes: when the first current signal is greater than or equal to the second fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in the first overcurrent state; when the first current signal is greater than or equal to the first fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in the second overcurrent state; when the average value of multiple first current signals within a second preset time is greater than or equal to the second fusing current threshold and less than the first fusing current threshold, and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in the first overcurrent state.

[0010] In combination with the first aspect, in a possible embodiment, the motor control circuit further includes a battery pack and an energy recovery unit connected in sequence, the battery pack is further connected to the vehicle controller, and the energy recovery unit is further connected to the second intelligent fuse; adjusting the electrical circuit corresponding to the in-wheel motor according to the first operating state includes: if the first intelligent fuse is in a normal state, maintaining the current control mode unchanged; if the first intelligent fuse is in an overcurrent state, sending a first adjustment signal to the motor controller, the first adjustment signal is used to instruct the motor controller to adjust the current output by the battery pack to the in-wheel motor, or sending a second adjustment signal to the main control unit, the second adjustment signal is used to instruct the main control unit to disconnect the first intelligent fuse; if the first intelligent fuse is in a high-temperature state and a current jump state, sending a third adjustment signal to the main control unit, the third adjustment signal is used to instruct the main control unit to disconnect the first intelligent fuse.

[0011] In combination with the first aspect, in a possible embodiment, the motor control circuit further includes a sensor unit, a battery pack and an energy recovery unit connected in sequence. The battery pack is also connected to the vehicle controller, and the energy recovery unit is also connected to the second intelligent fuse. The sensor unit is respectively connected to the main control unit, the first intelligent fuse and the second intelligent fuse; the intelligent fuse control method for the vehicle further includes: obtaining a second temperature signal collected by the sensor unit; determining a second operating state of the second intelligent fuse according to the second current signal and the second temperature signal; and adjusting the electrical circuit corresponding to the in-wheel motor according to the second operating state.

[0012] In a second aspect, the present application provides an intelligent fuse control device for a vehicle, which is applied to a vehicle controller in a motor control circuit; the motor control circuit includes the vehicle controller, a motor controller, an in-wheel motor, a main control unit, a first intelligent fuse and a second intelligent fuse; wherein, the vehicle controller is respectively connected to the first intelligent fuse and the main control unit, the first intelligent fuse is also respectively connected to the motor controller and the main control unit, the motor controller is also connected to the in-wheel motor, and the main control unit is respectively connected to the first intelligent fuse and the second intelligent fuse; the intelligent fuse control device for the vehicle includes: a generating unit, configured to generate braking torque information in response to a braking signal; the braking signal includes the driving speed, acceleration and state of charge of the vehicle battery; a sending unit, configured to send the braking torque information to the motor controller; the braking torque information is used to instruct the motor controller to adjust the magnitude and phase of a first current provided to the in-wheel motor, so as to drive the in-wheel motor to perform a corresponding braking operation; an obtaining unit, configured to obtain a first current signal collected by the main control unit from the first intelligent fuse; and obtain a second current signal collected by the main control unit from the second intelligent fuse; a processing unit, configured to, when it is determined that the first current signal exceeds a corresponding first fusing current threshold, send a first control signal to the main control unit through the sending unit, the first control signal is used to instruct the main control unit to control the first intelligent fuse to disconnect; and when it is determined that the second current signal exceeds a corresponding second fusing current threshold, send a second control signal to the main control unit through the sending unit, the second control signal is used to instruct the main control unit to control the second intelligent fuse to disconnect.

[0013] In a third aspect, the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the processor. The programs include instructions for performing the steps of any one of the first aspect to the second aspect of the present application.

[0014] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program for electronic data exchange. The computer program causes a computer to execute some or all of the steps described in any one of the first aspect to the second aspect of the present application.

[0015] In a fifth aspect, the present application provides a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to cause a computer to execute some or all of the steps described in any one of the first aspect to the second aspect of the present application. The computer program product may be a software installation package.

[0016] It can be seen that in the present application, braking torque information is generated in response to a braking signal. The braking signal includes the driving speed, acceleration, and state of charge of the battery of the vehicle. The braking torque information is sent to the motor controller. The braking torque information is used to instruct the motor controller to adjust the magnitude and phase of a first current supplied to the wheel motor to drive the wheel motor to perform a corresponding braking operation. A first current signal collected by the master control unit from the first intelligent fuse is obtained. When it is determined that the first current signal exceeds a corresponding first fuse current threshold, a first control signal is sent to the master control unit. The first control signal is used to instruct the master control unit to control the first intelligent fuse to disconnect. A second current signal collected by the master control unit from the second intelligent fuse is obtained. When it is determined that the second current signal exceeds a corresponding second fuse current threshold, a second control signal is sent to the master control unit. The second control signal is used to instruct the master control unit to control the second intelligent fuse to disconnect. In this way, through intelligent processing, the vehicle controller can control the intelligent fuse according to different situations, enabling the intelligent fuse to adapt to different scenarios and improving the versatility of the intelligent fuse. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic block diagram of the first motor control circuit provided by an embodiment of the present application; Figure 2 It is a schematic block diagram of the second motor control circuit provided by an embodiment of the present application; Figure 3 It is a schematic block diagram of the third motor control circuit provided by an embodiment of the present application; Figure 4 It is a schematic block diagram of the fourth motor control circuit provided by an embodiment of the present application; Figure 5 It is a schematic flowchart of the first intelligent fuse control method for a vehicle provided by an embodiment of the present application; Figure 6 It is a schematic flowchart of the second intelligent fuse control method for a vehicle provided by an embodiment of the present application; Figure 7 It is a schematic block diagram of an intelligent fuse control device for a vehicle provided by an embodiment of the present application; Figure 8 It is a schematic block diagram of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, systems, products or devices.

[0021] References to "embodiments" in this specification mean that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] The in-wheel motor of an electric vehicle has gradually become a standard configuration for high-end vehicles. In the electrical architecture system of the in-wheel motor, there is a drive control circuit module for the in-wheel motor. Each electrical module is designed for overcurrent protection and overtemperature protection. Specifically, common devices such as fuses, relays, and protection switches are selected for use in each circuit branch.

[0023] Currently, in the existing overcurrent protection design for the circuit of the in-wheel motor, a protection switch and a fuse are set between the main control unit and the power supply device, and a protection switch is set between the power supply device and the in-wheel motor controller. However, the fuse used in the existing technology has a single function and can only melt when the current exceeds a certain threshold, thereby cutting off the circuit to protect the overall circuit of the in-wheel motor.

[0024] To solve the above problems, the embodiments of the present application provide an intelligent fuse control method for a vehicle. This method can be applied to the scenario of controlling the intelligent fuse of the in-wheel circuit. Brake torque information can be generated in response to a brake signal; the brake signal includes the driving speed, acceleration, and state of charge of the vehicle battery; the brake torque information is sent to the motor controller; the brake torque information is used to instruct the motor controller to adjust the magnitude and phase of the first current provided to the in-wheel motor to drive the in-wheel motor to perform a corresponding braking operation; the first current signal collected by the main control unit from the first intelligent fuse is obtained; when it is determined that the first current signal exceeds the corresponding first fuse current threshold, a first control signal is sent to the main control unit, and the first control signal is used to instruct the main control unit to control the first intelligent fuse to disconnect; the second current signal collected by the main control unit from the second intelligent fuse is obtained; when it is determined that the second current signal exceeds the corresponding second fuse current threshold, a second control signal is sent to the main control unit, and the second control signal is used to instruct the main control unit to control the second intelligent fuse to disconnect. In this way, through intelligent processing, the vehicle controller can control the intelligent fuse according to different situations, enabling the intelligent fuse to adapt to different scenarios and improving the versatility of the intelligent fuse. This solution can be applied to a variety of scenarios, including but not limited to the application scenarios mentioned above.

[0025] The following introduces the system architecture involved in the embodiments of the present application.

[0026] The present application provides a motor control circuit. Please refer to Figure 1 , the motor control circuit includes the vehicle controller 100, the motor controller 200, the in-wheel motor 400, the main control unit 300, the first intelligent fuse 500, and the second intelligent fuse 600; wherein, the vehicle controller 100 is respectively connected to the first intelligent fuse 500 and the main control unit 300, the first intelligent fuse 500 is also respectively connected to the motor controller 200 and the main control unit 300, the motor controller 200 is also connected to the in-wheel motor 400, and the main control unit 300 is respectively connected to the first intelligent fuse 500 and the second intelligent fuse 600.

[0027] Furthermore, please continue to refer to Figure 2 , the motor control circuit further includes a battery pack 700 and an energy recovery unit 800 connected in sequence. The battery pack 700 is also connected to the vehicle controller 100, and the energy recovery unit 800 is also connected to the second intelligent fuse 600.

[0028] Specifically, for the first loop of the motor controller 200, the first intelligent fuse 500, and the vehicle controller 100, the in-wheel motor 400 controls the communication with the vehicle controller 100 to send and receive control and status signals; the first intelligent fuse 500 is responsible for transmitting signals between the motor controller 200 and the vehicle controller 100, and at the same time protecting the loop between the vehicle controller 100 and the motor controller 200; in addition, please also refer to Figure 3 , the main control unit 300 and the sensor unit 901 are connected to the first intelligent fuse 500. The sensor unit 901 collects from the first intelligent fuse 500 to obtain the temperature signal and current signal of the first loop, and uploads them to the main control unit 300; the main control unit 300 is used to separately report to the vehicle controller 100 the temperature signal and current signal of the first loop detected by the sensor unit 901 from the first intelligent fuse 500, and when the current in the first loop exceeds the first fuse current threshold, control the first intelligent fuse 500 to start the open circuit operation and report the open circuit event to the vehicle controller 100; temperature detection sensors and current monitoring circuits are provided for devices such as the first intelligent fuse 500 and the motor controller 200 to finely monitor the temperature conditions inside the motor controller 200 and the first intelligent fuse 500 (including the high-temperature dissolution of the circuit and components in the abnormal state of out-of-control heat dissipation, and the reduction of motor power and speed to reduce the heat generation efficiency of the heat sources (motor + brake system)), and monitor the current state of the electrical loop between the vehicle controller 100 and the motor controller 200 (including timely monitoring and control of overcurrent, short circuit, etc. to avoid damaging the controller and the vehicle controller 100).

[0029] Further, a second loop of the battery pack 700, the energy recovery unit 800 (such as a bidirectional DC-DC converter), the first intelligent fuse 500, the motor controller 200 (with an inverter provided inside and the motor controller 200 communicating with the vehicle controller 100), and the in-wheel motor 400 is used to access a drive current to drive the in-wheel motor 400 to operate (drive or brake). The sensor unit 901 is used to detect the drive current, and the main control unit 300 reports the drive current to the vehicle controller 100, and controls the moving contact assembly to perform a disconnection operation to protect the circuit system when the drive current is overloaded or short-circuited.

[0030] A third loop of the motor controller 200, the in-wheel motor 400, the second intelligent fuse 600, the energy recovery unit 800, and the battery pack 700 is used for kinetic energy recovery for the second current signal; The second intelligent fuse 600 is connected to the energy recovery unit 800, used to collect the second current signal, then perform energy recovery through the energy recovery unit 800 to charge the battery pack 700, and report the second current signal to the vehicle controller 100 through the main control unit 300 to control the second intelligent fuse 600 based on the second current signal.

[0031] In this embodiment, the electrical architecture of the in-wheel motor 400 is improved and optimized based on the intelligent fuse, and a motor control circuit integrating a current monitoring function, a temperature monitoring function, and a protection switch function is set, reducing the complexity of the components of the electrical architecture of the in-wheel motor 400 and improving the integration and stability of safety monitoring.

[0032] The following details the specific method.

[0033] Please refer to Figure 5 , this application also provides an intelligent fuse control method for a vehicle, which is applied to the vehicle controller 100 in the motor control circuit. Please refer to Figures 1 - 4 together, the motor control circuit includes the vehicle controller 100, the motor controller 200, the in-wheel motor 400, the main control unit 300, the first intelligent fuse 500, and the second intelligent fuse 600; wherein, the vehicle controller 100 is respectively connected to the first intelligent fuse 500 and the main control unit 300, the first intelligent fuse 500 is also respectively connected to the motor controller 200 and the main control unit 300, the motor controller 200 is also connected to the in-wheel motor 400, and the main control unit 300 is respectively connected to the first intelligent fuse 500 and the second intelligent fuse 600; the intelligent fuse control method for the vehicle includes: Step S101, generate braking torque information in response to a braking signal.

[0034] Among them, the braking signal includes the driving speed, acceleration, and state of charge of the battery of the vehicle.

[0035] Step S102: Send the braking torque information to the motor controller 200.

[0036] Among them, the braking torque information is used to instruct the motor controller 200 to adjust the magnitude and phase of the first current supplied to the wheel motor 400, so as to drive the wheel motor 400 to perform corresponding braking operations.

[0037] In a specific implementation, when the driver steps on the brake pedal, the pedal position sensor 1001 of the brake pedal will transmit the pedal stroke information to the vehicle controller 100. The vehicle controller 100 calculates the required braking torque based on information such as the driving speed, acceleration, and state of charge of the battery of the vehicle, and sends the demand signal to the motor controller 200. After receiving the braking torque demand signal, the motor controller 200 accurately calculates and adjusts the magnitude and phase of the first current according to the characteristics and current state of the motor (adjusting the magnitude and phase of the first current: by controlling the on and off times of the power switch tubes in the inverter, converting the direct current provided by the battery pack 700 into appropriate alternating current and delivering it to the motor stator winding to generate the required braking magnetic field and braking torque), so that the first current generates a specific magnetic field in the motor stator winding. This magnetic field interacts with the rotor to generate an electromagnetic force opposite to the rotation direction of the wheel, thereby realizing the control of the braking torque (for example, in a permanent magnet synchronous motor, the motor controller 200 accurately controls the first current to change the relative position and intensity of the stator magnetic field and the rotor permanent magnet magnetic field to generate an appropriate reverse electromagnetic torque to brake the wheel).

[0038] Specifically, a brake pedal is provided in the passenger compartment of the vehicle. In response to the driver's stepping operation, the brake pedal is used to output a braking signal. Among them, the braking signal includes stroke information or foot pressure. The brake pedal includes a pedal body and a pedal stroke sensor. The pedal stroke sensor is used to detect the stroke information or foot pressure of the brake pedal and output a braking signal.

[0039] In addition, the braking signal can also be determined according to the vehicle driving signal. The vehicle driving signal includes, but is not limited to, the vehicle speed information, wheel speed information, vehicle mass, slope of the road where the vehicle is located, and the operation information of multiple systems such as the antilock brake system (ABS), traction control system (TCS), and electronic stability control (ESC) of the vehicle. Exemplarily, the main control unit 300 is connected to multiple systems such as ABS, TCS, and ESC through the vehicle's bus to obtain the operation information of these systems. The bus includes an Ethernet bus or a controller area network (CAN) bus, etc.

[0040] Among them, the vehicle controller 100 is configured to output four control signals after receiving the braking signal. The four control signals are respectively used to control four wheel-end braking units. Each wheel-end braking unit specifically includes a motor controller 200 and a wheel motor 400. The motor controller 200 is configured to control the wheel motor 400 to output a braking torque according to the braking force indicated by the control signal. It can be understood that depending on the vehicle model, the vehicle may have more than 4 wheels, such as a 6-wheel vehicle, an 8-wheel vehicle, etc.; or different braking forms, such as front-wheel drive and rear-wheel drive; these situations will cause the number of wheel-end braking units to change, and the specific number of wheel-end braking units is not uniquely limited here.

[0041] Step S103: Obtain the first current signal collected by the main control unit 300 from the first intelligent fuse 500.

[0042] Step S104: When it is determined that the first current signal exceeds the corresponding first fuse current threshold, send a first control signal to the main control unit 300.

[0043] Among them, the first control signal is used to instruct the main control unit 300 to control the first intelligent fuse 500 to disconnect.

[0044] Step S105: Obtain the second current signal collected by the main control unit 300 from the second intelligent fuse 600; Step S106: When it is determined that the second current signal exceeds the corresponding second fuse current threshold, send a second control signal to the main control unit 300.

[0045] Among them, the second control signal is used to instruct the main control unit 300 to control the second intelligent fuse 600 to disconnect.

[0046] In a specific implementation, the main control unit 300 is respectively connected to the first intelligent fuse 500 and the second intelligent fuse 600, and is used to collect the first current signal of the first intelligent fuse 500 and the second current signal of the second intelligent fuse 600.

[0047] After the main control unit 300 obtains the first current signal of the first intelligent fuse 500, it will feedback the first current signal to the vehicle controller 100; the vehicle controller 100 compares the first current signal with the first fuse current threshold. If the first current signal is greater than the first fuse current threshold, it means that there is an abnormal current in the motor control circuit, which may cause damage to the components in the motor control circuit; therefore, the vehicle controller 100 sends a first control signal to the main control unit 300; after receiving the first control signal, the main control unit 300 outputs a cut-fuse signal to the first intelligent fuse 500, thereby causing the first intelligent fuse 500 to disconnect.

[0048] After the main control unit 300 obtains the second current signal of the second intelligent fuse 600, it will feedback the second current signal to the vehicle controller 100; the vehicle controller 100 compares the second current signal with the second fuse current threshold. If the second current signal is greater than the second fuse current threshold, it means that there is an abnormal current in the motor control circuit, which may cause damage to the components in the motor control circuit; therefore, the vehicle controller 100 sends a second control signal to the main control unit 300; after receiving the second control signal, the main control unit 300 outputs a cut-fuse signal to the second intelligent fuse 600, thereby causing the second intelligent fuse 600 to disconnect.

[0049] It can be seen that in this application, braking torque information is generated in response to a braking signal; the braking signal includes the driving speed, acceleration, and battery charge state of the vehicle; the braking torque information is sent to the motor controller 200; the braking torque information is used to instruct the motor controller 200 to adjust the magnitude and phase of the first current supplied to the wheel motor 400 to drive the wheel motor 400 to perform a corresponding braking operation; the first current signal collected by the main control unit 300 from the first intelligent fuse 500 is obtained; when it is determined that the first current signal exceeds the corresponding first fuse current threshold, a first control signal is sent to the main control unit 300, and the first control signal is used to instruct the main control unit 300 to control the first intelligent fuse 500 to disconnect; the second current signal collected by the main control unit 300 from the second intelligent fuse 600 is obtained; when it is determined that the second current signal exceeds the corresponding second fuse current threshold, a second control signal is sent to the main control unit 300, and the second control signal is used to instruct the main control unit 300 to control the second intelligent fuse 600 to disconnect. In this way, through intelligent processing, the vehicle controller 100 can control the intelligent fuse according to different situations, enabling the intelligent fuse to adapt to different scenarios and improving the versatility of the intelligent fuse.

[0050] In a possible embodiment, please refer to Figure 6 , the intelligent fuse control method for the vehicle further includes: Step S201, obtaining a mode selection signal input by the user from the in-vehicle terminal; Step S202, switching the vehicle to the corresponding target driving mode according to the mode selection signal and generating a corresponding first mode signal; Step S203, multiple driving modes are stored in the vehicle controller 100, and the multiple driving modes include the target driving mode; Step S204, sending the first mode signal to the main control unit 300.

[0051] Among them, the first mode signal is used to instruct the main control unit 300 to update the first fuse current threshold of the first intelligent fuse 500 to the first target parameter value corresponding to the target driving mode, and is used to instruct the main control unit 300 to update the second fuse current threshold of the second intelligent fuse 600 to the second target parameter value corresponding to the target driving mode.

[0052] In a specific implementation, a user can perform human-machine interaction with an in-vehicle terminal, and then input a mode selection signal to the in-vehicle terminal to adjust the current driving mode of the vehicle. After receiving the mode selection signal, the vehicle controller 100 in the in-vehicle terminal will switch the current driving mode to the target driving mode corresponding to the mode selection signal. Then, a first mode signal corresponding to the target driving mode is sent to the main control unit 300 to adjust the parameters of the first intelligent fuse 500 and the second intelligent fuse 600.

[0053] Specifically, the main control unit 300 receives the first mode signal from the vehicle controller 100. The first mode signal indicates any one of a track mode, a wading mode, and a normal mode. The main control unit 300 queries the mode configuration table to obtain the first temperature sampling parameter in the first mode. The sensor unit 901 samples the first temperature signal according to the first temperature sampling parameter and sends the first temperature signal to the vehicle controller 100. Also, the first current sampling parameter in the first mode is obtained. The sensor unit 901 samples the first current signal from the first intelligent fuse 500 according to the first current sampling parameter and sends the first current signal to the vehicle controller 100. Also, the overcurrent threshold of the first intelligent fuse 500 is set to the first overcurrent threshold (i.e., the first target parameter value) corresponding to the first mode. Furthermore, after the main control unit 300 receives the first mode signal from the vehicle controller 100, the main control unit 300 queries the mode configuration table to obtain the second temperature sampling parameter in the first mode. The sensor unit 901 samples the second temperature signal according to the second temperature sampling parameter and sends the second temperature signal to the vehicle controller 100. Also, the second current sampling parameter in the second mode is obtained. The sensor unit 901 samples the second current signal from the first intelligent fuse 500 according to the second current sampling parameter in the first mode and sends the second current signal to the vehicle controller 100. Also, the overcurrent threshold of the second intelligent fuse 600 is set to the second overcurrent threshold (the second target parameter value) corresponding to the first mode. It can be seen that in this embodiment, by presetting the driving mode, then switching the driving mode through the corresponding mode selection signal, and at the same time dynamically adjusting the parameters of the first intelligent fuse 500 and the second intelligent fuse 600 based on the driving mode, the dynamic adjustment of the parameters of the first intelligent fuse 500 and the second intelligent fuse 600 is realized.

[0054] In a possible embodiment, the intelligent fuse control method for the vehicle further includes: obtaining a first temperature signal collected by the sensor unit 901; determining a first operating state of the first intelligent fuse 500 according to the first current signal and the first temperature signal; wherein the first operating state includes one or more of a normal state, an overcurrent state, a high-temperature state, and a current jump state; and adjusting the electrical circuit corresponding to the wheel motor 400 according to the first operating state. In specific implementation, the operation data of the first intelligent fuse 500 and the second intelligent fuse 600 of the vehicle and their control circuits are obtained, and the working states of the first intelligent fuse 500 and the second intelligent fuse 600 and their control circuits are classified according to these operation data, so as to obtain working states including but not limited to the following: a normal state, an overcurrent state, a high-temperature state, and a current jump state. Optionally, the classification method of the first operating state can be to train a neural network model and then classify based on the neural network model; it can also be to first count multiple first preset operating states (including an overcurrent state, a high-temperature state, and a current jump state) according to the operation data. For example, if there is a fault message in the operation data, the corresponding multiple first preset operating states are determined based on the fault message, and the normal operating state is determined based on the normal operation data in the fault message. After determining multiple first preset operating states, calculate a first parameter in each first preset operating state and set the first parameter as the preset parameter corresponding to the first preset operating state. It can be understood that the preset parameters include corresponding current thresholds and temperature thresholds, such as a first fusing current threshold, a second fusing current threshold, a third fusing current threshold, a fourth fusing current threshold, a first temperature threshold, and a second temperature threshold, etc.

[0055] In a possible embodiment, after determining the first preset operating state and its corresponding preset parameters, store the first preset operating state and its corresponding preset parameters in the storage unit in the vehicle controller 100 or in a storage unit outside the vehicle controller 100; after obtaining the first current signal and the first temperature signal, compare the first current signal and the first temperature signal with the preset parameters in each first preset operating state. For example, compare the first current signal with the first fusing current threshold and compare the first temperature signal with the first temperature threshold to determine the first operating state corresponding to the first current signal and the first temperature signal from multiple first preset operating states.

[0056] Specifically, determining the first working state of the first intelligent fuse 500 according to the first current signal and the first temperature signal includes: when the first current signal is less than the third fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse 500 is in a normal state; when the first current signal is greater than or equal to the third fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse 500 is in an overcurrent state; when the first current signal is less than the third fusing current threshold and the first temperature signal is greater than or equal to the first temperature threshold, it is determined that the first intelligent fuse 500 is in a high-temperature state; when the average difference between multiple first current signals within the first preset time is greater than or equal to the first preset value, it is determined that the first intelligent fuse 500 is in a current jump state.

[0057] In a possible embodiment, when determining the first preset working state, the first preset working state can be classified. For example, different classification level hierarchies can be designed for different classification relationships. First, various categories are screened out based on the operation data, and corresponding category labels are set for each type. In practical applications, a classification level selection sub-interface and a category selection sub-interface are displayed on the user interface. In the classification level selection sub-interface, the level of the classification level to be set can be selected, such as first-level classification, second-level classification, third-level classification. In the category selection sub-interface, specific categories can be selected for different classification levels.

[0058] Illustrative example: Obtaining the selection instruction input by the user determines that the user needs to select the first-level classification and the second-level classification; then for the first-level classification, the cause of the fault can be determined as the first-level classification of the first preset working state, or the fault location can be classified at the first working state level, or other classification methods, which are not uniquely limited here. Further, corresponding second-level classifications are assigned under each first-level classification; specifically, if the cause of the fault is used for the first-level classification, the second-level classification can be based on the degree of the fault; if the fault location is used for the first-level classification, the second-level classification can be first based on the cause of the fault, and then the third-level classification can be based on the degree of the fault, or one of the cause of the fault and the degree of the fault can be directly selected for classification on the basis of the first-level classification. It can be specifically selected according to the actual situation, which is not uniquely limited here.

[0059] After determining the classification level and the category, the vehicle controller 100 can automatically divide the corresponding first preset working state for each classification level based on the operation data.

[0060] Among them, the first-level classification can include: normal state, overcurrent state, high-temperature state, and current jump state; taking the overcurrent state as an example, the second-level classifications corresponding to the overcurrent state can include the first overcurrent state, the second overcurrent state, and the third overcurrent state.

[0061] The method of determining the first working state of the first intelligent fuse 500 based on the first current signal and the first temperature signal includes: when the first current signal is greater than or equal to the third fuse current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse 500 is in the first overcurrent state; when the first current signal is greater than or equal to the first fuse current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse 500 is in the second overcurrent state; when the average value of multiple first current signals within the second preset time is greater than or equal to the third fuse current threshold and less than the first fuse current threshold, and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse 500 is in the third overcurrent state.

[0062] Specifically, the first overcurrent state means that the current in the first intelligent fuse 500 has not reached the level required to trigger the fuse mechanism, but is higher than the current in the normal working state; the second overcurrent state means that the current in the first intelligent fuse 500 is higher than the current that triggers the fuse mechanism; the third overcurrent state means that the working state of the first intelligent fuse 500 is in the first overcurrent state for a long time.

[0063] It can be seen that in this embodiment, by setting the first preset working state, the first working state of the first smart fuse 500 and the second smart fuse 600 and their control circuit can be accurately judged based on the collected first current signal and the first temperature signal in actual application, thereby improving the reliability and intelligence of the first smart fuse 500 and the second smart fuse 600 and their control circuit. In addition, by adjusting the classification level and category of the first preset working state in a manner selected by the user, the level and accuracy of the first preset working state are adjusted, further improving the reliability and intelligence of the first smart fuse 500 and the second smart fuse 600 and their control circuit.

[0064] Further, the motor control circuit further includes a battery pack 700 and an energy recovery unit 800 connected in sequence. The battery pack 700 is also connected to the vehicle controller 100, and the energy recovery unit 800 is also connected to the second intelligent fuse 600; adjusting the electrical circuit corresponding to the wheel motor 400 according to the first working state includes: if the first intelligent fuse 500 is in a normal state, keeping the current control mode unchanged; if the first intelligent fuse 500 is in an overcurrent state, sending a first adjustment signal to the motor controller 200, or outputting a second adjustment signal to the main control unit 300. The first adjustment signal is used to instruct the motor controller 200 to adjust the current output from the battery pack 700 to the wheel motor 400, and the second adjustment signal is used to instruct the main control unit 300 to disconnect the first intelligent fuse 500; if the first intelligent fuse 500 is in a high temperature state and a current jump state, outputting a third adjustment signal to the main control unit 300, and the third adjustment signal is used to instruct the main control unit 300 to disconnect the first intelligent fuse 500.

[0065] In specific implementation, the sensor unit 901 collects a first current signal and a first temperature signal of the first intelligent fuse 500. The vehicle controller 100 receives the first current signal and the first temperature signal, and determines the first working state corresponding to the first intelligent fuse 500 based on the first current signal and the first temperature signal.

[0066] It can be understood that the first intelligent fuse 500 will generate changes in current and temperature during operation, and different currents and temperatures require different processing. Therefore, in this embodiment, different first current signals and first temperature signals are integrated into the corresponding first working state. For example, normal state, overcurrent state, high temperature state, and current jump state. For different first working states, the vehicle controller 100 outputs different adjustment signals, and then controls the first intelligent fuse 500 accordingly. In this way, the intelligent level of the motor control circuit is further improved, enabling the vehicle controller 100 to control the intelligent fuse according to different situations, and further improving the versatility of the first intelligent fuse 500 and the second intelligent fuse 600.

[0067] In a possible embodiment, the motor control circuit further includes a sensor unit, a battery pack 700 and an energy recovery unit 800 connected in sequence. The battery pack 700 is also connected to the vehicle controller 100, and the energy recovery unit 800 is also connected to the second intelligent fuse 600. The sensor unit is respectively connected to the main control unit, the first intelligent fuse 500 and the second intelligent fuse 600. The intelligent fuse control method of the vehicle further includes: obtaining a second temperature signal collected by the sensor unit; determining a second working state of the second intelligent fuse 600 according to the second current signal and the second temperature signal; and adjusting the electrical circuit corresponding to the wheel motor according to the second working state.

[0068] In specific implementation, the classification method of the second working state in this embodiment is the same as that of the first working state. The specific types of the second working state may be different from or the same as those of the first working state, and no uniqueness limitation is made here. Specifically, after determining the second working state of the second intelligent fuse 600, the vehicle controller may output a corresponding adjustment signal based on the second working state to control the second intelligent fuse 600 or the battery pack, so that the second intelligent fuse 600 is turned off or the output current of the battery pack is controlled. The specific adjustment method may be the same as or similar to that of the first working state, and no limitation is made here.

[0069] Furthermore, both the second current signal and the second temperature signal are used to provide electrical energy for the energy recovery unit 800, and the energy recovery unit 800 generates a first power supply signal based on the electrical energy to supply power to the battery pack 700.

[0070] In specific implementation, the second current signal and the second temperature signal in the second intelligent fuse 600 are collected by the sensor unit 901. The vehicle controller 100 receives the second current signal and the second temperature signal, and based on the second current signal and the second temperature signal, according to the second temperature signal, the second current signal, the driving speed and acceleration of the vehicle, realizes the closed-loop control of kinetic energy recovery.

[0071] Specifically, the current in the second intelligent fuse 600 is output to the energy recovery unit, and the energy recovery unit 800 performs energy conversion based on the electrical energy of the second current signal and the second temperature signal to charge the battery pack 700, thereby realizing energy recovery, improving the energy utilization rate of the motor control circuit, and saving electric power resources.

[0072] The above mainly introduces the solution of the embodiment of the present application from the perspective of the execution process on the method side. It can be understood that in order for a mobile electronic device to implement the above functions, it includes the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0073] The embodiments of the present application can divide the functional units of the electronic device according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, only a logical functional division, and there can be other division methods in actual implementation.

[0074] Please refer to Figure 7 , the present application also provides an intelligent fuse control device 60 for a vehicle, which is applied to a vehicle controller in a motor control circuit. The motor control circuit includes the vehicle controller, a motor controller, a wheel-side motor, a main control unit, a first intelligent fuse, and a second intelligent fuse; wherein, the vehicle controller is respectively connected to the first intelligent fuse and the main control unit, the first intelligent fuse is also respectively connected to the motor controller and the main control unit, the motor controller is also connected to the wheel-side motor, and the main control unit is respectively connected to the first intelligent fuse and the second intelligent fuse; the intelligent fuse control device 60 for the vehicle includes: A generating unit 61, configured to generate braking torque information in response to a braking signal; the braking signal includes the driving speed, acceleration, and state of charge of the vehicle battery; A sending unit 62, configured to send the braking torque information to the motor controller; the braking torque information is used to instruct the motor controller to adjust the magnitude and phase of the first current provided to the wheel-side motor to drive the wheel-side motor to perform a corresponding braking operation; An obtaining unit 63, configured to obtain a first current signal collected by the main control unit from the first intelligent fuse; and obtain a second current signal collected by the main control unit from the second intelligent fuse; A processing unit 64, configured to, when determining that the first current signal exceeds the corresponding first fusing current threshold, send a first control signal to the main control unit through the sending unit 62, where the first control signal is used to instruct the main control unit to control the first intelligent fuse to disconnect; and, when determining that the second current signal exceeds the corresponding second fusing current threshold, send a second control signal to the main control unit through the sending unit 62, where the second control signal is used to instruct the main control unit to control the second intelligent fuse to disconnect.

[0075] In a possible embodiment, the intelligent fuse control device 60 of the vehicle further includes: the obtaining unit 63, further configured to obtain a mode selection signal input by a user from an in-vehicle terminal; the processing unit 64, further configured to switch the vehicle to a corresponding target driving mode according to the mode selection signal and generate a corresponding first mode signal; the first mode signal is used to indicate the current driving mode of the vehicle, and a plurality of driving modes are stored in the vehicle controller, and the plurality of driving modes include the target driving mode; send the first mode signal to the main control unit; the first mode signal is used to instruct the main control unit to update the first fusing current threshold of the first intelligent fuse to a first target parameter value corresponding to the target driving mode, and is used to instruct the main control unit to update the second fusing current threshold of the second intelligent fuse to a second target parameter value corresponding to the target driving mode.

[0076] In a possible embodiment, the intelligent fuse control device 60 of the vehicle further includes: the obtaining unit 63, further configured to obtain a first temperature signal collected by the sensor unit; the processing unit 64, further configured to determine a first working state of the first intelligent fuse according to the first current signal and the first temperature signal; where the first working state includes one or more of a normal state, an overcurrent state, a high-temperature state, and a current jump state; and adjust an electric circuit corresponding to the wheel-side motor according to the first working state.

[0077] In a possible embodiment, in terms of determining the first operating state of the first intelligent fuse according to the first current signal and the first temperature signal, the intelligent fuse control device 60 of the vehicle includes: the processing unit 64, which is further configured to determine that the first intelligent fuse is in a normal state when the first current signal is less than the second fusing current threshold and the first temperature signal is less than the first temperature threshold; and to determine that the first intelligent fuse is in an overcurrent state when the first current signal is greater than or equal to the second fusing current threshold and the first temperature signal is less than the first temperature threshold; and to determine that the first intelligent fuse is in a high-temperature state when the first current signal is less than the second fusing current threshold and the first temperature signal is greater than or equal to the first temperature threshold; and to determine that the first intelligent fuse is in a current jump state when the mean difference between multiple first current signals within a first preset time is greater than or equal to a first preset value.

[0078] In a possible embodiment, the overcurrent state includes a first overcurrent state, a second overcurrent state, and a third overcurrent state; in terms of determining the first operating state of the first intelligent fuse according to the first current signal and the first temperature signal, the processing unit 64 is specifically configured to: determine that the first intelligent fuse is in the first overcurrent state when the first current signal is greater than or equal to the second fusing current threshold and the first temperature signal is less than the first temperature threshold; determine that the first intelligent fuse is in the second overcurrent state when the first current signal is greater than or equal to the first fusing current threshold and the first temperature signal is less than the first temperature threshold; and determine that the first intelligent fuse is in the first overcurrent state when the mean value of multiple first current signals within a second preset time is greater than or equal to the second fusing current threshold and less than the first fusing current threshold, and the first temperature signal is less than the first temperature threshold.

[0079] In a possible embodiment, the motor control circuit further includes a battery pack and an energy recovery unit connected in sequence. The battery pack is also connected to the vehicle controller, and the energy recovery unit is also connected to the second intelligent fuse. In terms of adjusting the electrical circuit corresponding to the wheel motor according to the first working state, the processing unit 64 is specifically configured to: if the first intelligent fuse is in a normal state, keep the current control mode unchanged; if the first intelligent fuse is in an overcurrent state, send a first adjustment signal to the motor controller or output a second adjustment signal to the main control unit. The first adjustment signal is used to instruct the motor controller to adjust the current output from the battery pack to the wheel motor, and the second adjustment signal is used to instruct the main control unit to disconnect the first intelligent fuse; if the first intelligent fuse is in a high-temperature state and a current jump state, output a third adjustment signal to the main control unit. The third adjustment signal is used to instruct the main control unit to disconnect the first intelligent fuse.

[0080] In a possible embodiment, the motor control circuit further includes a sensor unit, a battery pack and an energy recovery unit connected in sequence. The battery pack is also connected to the vehicle controller, and the energy recovery unit is also connected to the second intelligent fuse. The sensor unit is respectively connected to the main control unit, the first intelligent fuse and the second intelligent fuse. The intelligent fuse control device 60 of the vehicle further includes: obtaining a second temperature signal collected by the sensor unit; determining a second working state of the second intelligent fuse according to the second current signal and the second temperature signal; and adjusting the electrical circuit corresponding to the wheel motor according to the second working state.

[0081] In a possible embodiment, both the second current signal and the second temperature signal are used to provide electrical energy for the energy recovery unit, and the energy recovery unit generates a first power supply signal based on the electrical energy to supply power to the battery pack.

[0082] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more collections of available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media. The semiconductor media can be a solid-state drive.

[0083] The present application also provides an electronic device 10, as Figure 8 shown, which includes at least one processor 11; a display screen 12; and a memory 13, and may further include a communication interface 15 and a bus 14. Among them, the processor 11, the display screen 12, the memory 13, and the communication interface 15 can communicate with each other through the bus 14. The display screen 12 is set to display a user guidance interface preset in the initial setting mode. The communication interface 15 can transmit information. The processor 11 can call the logical instructions in the memory 13 to execute the method in the above embodiments.

[0084] Optionally, the electronic device 10 can be a mobile electronic device, or an electronic device or other device, and no unique limitation is made here.

[0085] In addition, when the logical instructions in the above-mentioned memory 13 are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium.

[0086] The memory 13, as a computer-readable storage medium, can be set to store software programs and computer-executable programs, such as the program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 11 executes functional applications and data processing by running the software programs, instructions, or modules stored in the memory 13, that is, implements the methods in the above embodiments.

[0087] The memory 13 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the electronic device 10, etc. In addition, the memory 13 may include a high-speed random access memory and may also include a non-volatile memory. For example, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc, may also be a transient storage medium.

[0088] The embodiment of the present application also provides a computer storage medium. Among them, the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any of the methods described in the above method embodiments. The above computer includes an electronic device.

[0089] The embodiment of the present application also provides a computer program product. The above computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the above computer program is operable to enable a computer to execute part or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the above computer includes an electronic device.

[0090] It should be understood that in various embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0091] In several embodiments provided by the present application, it should be understood that the disclosed methods, devices, and systems may be implemented in other ways. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection to each other may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in an electrical, mechanical, or other form.

[0092] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0093] In addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, or each unit can be physically included separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a hardware plus software functional unit.

[0094] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit stored in a storage medium includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute some steps of the intelligent fuse control method of the vehicle described in various embodiments of the present invention. The foregoing storage medium includes: USB flash drive, mobile hard disk, magnetic disk, optical disk, volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). And other media that can store program code.

[0095] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or substitutions without departing from the spirit and scope of the present invention, and can make various changes and modifications, including combinations of the above different functions and implementation steps, including software and hardware implementation modes, all within the protection scope of the present invention.

Claims

1. An intelligent fuse control method for a vehicle, characterized in that, A vehicle controller applied to a motor control circuit; the motor control circuit includes the vehicle controller, a motor controller, a wheel-side motor, a main control unit, a first intelligent fuse, and a second intelligent fuse; wherein, the vehicle controller is respectively connected to the first intelligent fuse and the main control unit, the first intelligent fuse is also respectively connected to the motor controller and the main control unit, the motor controller is further connected to the wheel-side motor, and the main control unit is respectively connected to the first intelligent fuse and the second intelligent fuse; the intelligent fuse control method for the vehicle includes: Generating braking torque information in response to a braking signal; the braking signal includes the driving speed, acceleration, and state of charge of the vehicle battery. Sending the braking torque information to the motor controller; the braking torque information is used to instruct the motor controller to adjust the magnitude and phase of the first current provided to the wheel-side motor to drive the wheel-side motor to perform corresponding braking operations. Obtaining a first current signal collected by the main control unit from the first intelligent fuse. When it is determined that the first current signal exceeds the corresponding first fuse current threshold, a first control signal is sent to the main control unit, and the first control signal is used to instruct the main control unit to control the first intelligent fuse to disconnect. Obtaining a second current signal collected by the main control unit from the second intelligent fuse. When it is determined that the second current signal exceeds the corresponding second fuse current threshold, a second control signal is sent to the main control unit, and the second control signal is used to instruct the main control unit to control the second intelligent fuse to disconnect.

2. The intelligent fuse control method for a vehicle according to claim 1, characterized in that, The intelligent fuse control method for the vehicle further includes: Obtaining a mode selection signal input by the user from an in-vehicle terminal. Switching the vehicle to a corresponding target driving mode according to the mode selection signal and generating a corresponding first mode signal; multiple driving modes are stored in the vehicle controller, and the multiple driving modes include the target driving mode. Sending the first mode signal to the main control unit; the first mode signal is used to instruct the main control unit to update the first fuse current threshold of the first intelligent fuse to a first target parameter value corresponding to the target driving mode, and to instruct the main control unit to update the second fuse current threshold of the second intelligent fuse to a second target parameter value corresponding to the target driving mode.

3. The intelligent fuse control method for a vehicle according to claim 1, characterized in that, The motor control circuit further includes a sensor unit, and the sensor unit is respectively connected to the main control unit, the first intelligent fuse, and the second intelligent fuse; the intelligent fuse control method for the vehicle further includes: Obtaining a first temperature signal collected by the sensor unit. Determining a first operating state of the first intelligent fuse according to the first current signal and the first temperature signal; wherein, the first operating state includes one or more of a normal state, an overcurrent state, a high-temperature state, and a current jump state. Adjusting the electrical circuit corresponding to the wheel-side motor according to the first operating state.

4. The intelligent fuse control method for a vehicle according to claim 3, characterized in that, Determining the first working state of the first intelligent fuse according to the first current signal and the first temperature signal includes: When the first current signal is less than the third fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in a normal state; wherein, the third fusing current threshold is less than the first fusing current threshold; When the first current signal is greater than or equal to the third fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in an overcurrent state; When the first current signal is less than the third fusing current threshold and the first temperature signal is greater than or equal to the first temperature threshold, it is determined that the first intelligent fuse is in a high-temperature state; When the average difference between multiple first current signals within a first preset time is greater than or equal to a first preset value, it is determined that the first intelligent fuse is in a current jump state.

5. The intelligent fuse control method for a vehicle according to claim 4, characterized in that, The overcurrent state includes a first overcurrent state, a second overcurrent state, and a third overcurrent state; determining the first working state of the first intelligent fuse according to the first current signal and the first temperature signal includes: When the first current signal is greater than or equal to the third fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in a first overcurrent state; When the first current signal is greater than or equal to the first fusing current threshold and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in a second overcurrent state; When the average value of multiple first current signals within a second preset time is greater than or equal to the third fusing current threshold and less than the first fusing current threshold, and the first temperature signal is less than the first temperature threshold, it is determined that the first intelligent fuse is in a third overcurrent state.

6. The intelligent fuse control method for a vehicle according to claim 3, characterized in that, The motor control circuit further includes a battery pack and an energy recovery unit connected in sequence, the battery pack is further connected to the vehicle controller, and the energy recovery unit is further connected to the second intelligent fuse; adjusting the electrical circuit corresponding to the in-wheel motor according to the first working state includes: If the first intelligent fuse is in a normal state, keep the current control mode unchanged; If the first intelligent fuse is in an overcurrent state, send a first adjustment signal to the motor controller, or output a second adjustment signal to the main control unit, the first adjustment signal is used to instruct the motor controller to adjust the current output from the battery pack to the in-wheel motor, and the second adjustment signal is used to instruct the main control unit to disconnect the first intelligent fuse; If the first intelligent fuse is in a high-temperature state and a current jump state, output a third adjustment signal to the main control unit, and the third adjustment signal is used to instruct the main control unit to disconnect the first intelligent fuse.

7. The intelligent fuse control method for a vehicle according to any one of claims 1-6, characterized in that, The motor control circuit further includes a sensor unit, a battery pack and an energy recovery unit connected in sequence. The battery pack is also connected to the vehicle controller, and the energy recovery unit is also connected to the second intelligent fuse. The sensor unit is respectively connected to the main control unit, the first intelligent fuse and the second intelligent fuse; The intelligent fuse control method for the vehicle further includes: Obtaining a second temperature signal collected by the sensor unit; Determining a second operating state of the second intelligent fuse according to the second current signal and the second temperature signal; Adjusting the electrical circuit corresponding to the in-wheel motor according to the second operating state.

8. An intelligent fuse control device for a vehicle, characterized in that, A vehicle controller applied to a motor control circuit; the motor control circuit includes the vehicle controller, a motor controller, an in-wheel motor, a main control unit, a first intelligent fuse and a second intelligent fuse; wherein, the vehicle controller is respectively connected to the first intelligent fuse and the main control unit, the first intelligent fuse is also respectively connected to the motor controller and the main control unit, the motor controller is also connected to the in-wheel motor, and the main control unit is respectively connected to the first intelligent fuse and the second intelligent fuse; the intelligent fuse control device for the vehicle includes: A generating unit, configured to generate braking torque information in response to a braking signal; the braking signal includes the driving speed, acceleration and state of charge of the vehicle battery; A sending unit, configured to send the braking torque information to the motor controller; the braking torque information is used to instruct the motor controller to adjust the magnitude and phase of a first current provided to the in-wheel motor to drive the in-wheel motor to perform a corresponding braking operation; An obtaining unit, configured to obtain a first current signal collected by the main control unit from the first intelligent fuse; and obtain a second current signal collected by the main control unit from the second intelligent fuse; A processing unit, configured to, when it is determined that the first current signal exceeds a corresponding first fusing current threshold, send a first control signal to the main control unit through the sending unit, the first control signal being used to instruct the main control unit to control the first intelligent fuse to disconnect; and when it is determined that the second current signal exceeds a corresponding second fusing current threshold, send a second control signal to the main control unit through the sending unit, the second control signal being used to instruct the main control unit to control the second intelligent fuse to disconnect.

9. An electronic device, characterized in that, It includes a processor, a memory, a communication interface, and one or more programs. The one or more programs are stored in the memory and are configured to be executed by the processor. The programs include instructions for performing the steps in the intelligent fuse control method for the vehicle according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, Store a computer program for electronic data exchange, wherein the computer program enables a computer to execute the instructions for performing the steps in the intelligent fuse control method for the vehicle according to any one of claims 1-7.

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