High- and low-voltage platform architecture, control method and storage medium

Abstract

A high- and low-voltage platform architecture, a control method and a storage medium. The high- and low-voltage platform architecture comprises: a high-voltage architecture system and a low-voltage architecture system; the high-voltage architecture system comprises a high-voltage battery, a high-voltage power distribution system, a high-voltage electronic control system and a high-voltage load; the low-voltage architecture system comprises a battery management system and a main control unit; the high-voltage battery is connected to the high-voltage load by means of the high-voltage power distribution system; the battery management system is separately connected to the high-voltage electronic control system and the high-voltage load; the high-voltage power distribution system is separately and communicatively connected to the main control unit and the high-voltage electronic control system; and the high-voltage power distribution system is configured to perform high-voltage power-on and power-off control on the basis of a control instruction of the high-voltage electronic control system.

Description

High-low voltage platform architecture, control method and storage medium

[0001] The present application claims priority to the Chinese patent application No. 202411378705.7, filed on September 29, 2024, to the Chinese Patent Office, the whole content of the above application being incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of power systems, for example to a high-low voltage platform architecture, a control method and a storage medium. BACKGROUND

[0003] Currently, in the cleaning vehicle industry, there is no mature solution related to high-low voltage electrical architecture. The chassis high-low voltage architecture and the cleaning system high-low voltage architecture are usually the same platform architecture, without high-low voltage architecture design concept, resulting in unreasonable power distribution, unclear power distribution scheme, in addition, the high voltage scheme on the traditional high voltage architecture is only controlled by the vehicle On switch, which causes safety hazards of the cleaning vehicle. SUMMARY

[0004] The present application provides a high-low voltage platform architecture, a control method and a storage medium, which improves the defects of unreasonable power distribution and unclear power distribution scheme, solves the problem that the high voltage scheme on the traditional high voltage architecture is only controlled by the vehicle On switch, and improves the safety factor of the platform architecture.

[0005] The present application provides a high-low voltage platform architecture, comprising: a high voltage architecture system and a low voltage architecture system; wherein the high voltage architecture system comprises a high voltage battery, a high voltage power distribution system, a high voltage control system and a high voltage load, the high voltage battery is connected to the high voltage load through the high voltage power distribution system; the low voltage architecture system comprises a battery management system and a master control unit, the battery management system is connected to the high voltage control system and the high voltage load respectively;

[0006] The master control unit is in communication connection with the high voltage power distribution system, the high voltage power distribution system is in communication connection with the high voltage control system, and the high voltage power distribution system is configured to perform high voltage power-on and power-off control according to the control instruction of the high voltage control system.

[0007] The present application also provides a high-low voltage platform architecture control method, comprising:

[0008] In response to a platform wake-up signal, controlling the low voltage architecture system to power on;

[0009] According to the battery management system and the master control unit of the low voltage architecture system, detecting high voltage environment information of the high voltage architecture system;

[0010] In response to the high voltage environment information meeting a preset power-on condition, controlling the high voltage architecture system to power on high voltage.

[0011] The application further provides a computer readable storage medium, which stores computer instructions for causing a processor to implement the high-low voltage platform architecture control method of any of the embodiments of the application. BRIEF DESCRIPTION OF DRAWINGS

[0012] FIG. 1 is a high-low voltage platform architecture diagram according to an embodiment of the application;

[0013] FIG. 2 is a CAN bus architecture diagram in the high-low voltage platform architecture according to the embodiment of the application;

[0014] FIG. 3 is a high voltage architecture diagram in the high-low voltage platform architecture according to the embodiment of the application;

[0015] FIG. 4 is a low voltage architecture diagram in the high-low voltage platform architecture according to the embodiment of the application;

[0016] FIG. 5 is a flowchart of a high-low voltage platform architecture control method according to an embodiment of the application;

[0017] FIG. 6 is a flowchart of another high-low voltage platform architecture control method according to an embodiment of the application;

[0018] FIG. 7 is a power-on flow of a driving high voltage subsystem according to an embodiment of the application;

[0019] FIG. 8 is a power-off flow of the driving high voltage subsystem according to an embodiment of the application;

[0020] FIG. 9 is a power-on flow of a function control high voltage subsystem according to an embodiment of the application;

[0021] FIG. 10 is a power-off flow of the function control high voltage subsystem according to an embodiment of the application. DETAILED DESCRIPTION

[0022] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application as well as above-mentioned drawings mean for distinguishing similar objects, not necessarily for describing a specific sequential or chronological order. It is to be understood that the data so distinguished can be interchanged, under appropriate circumstances, such that the embodiments of the present application described herein can be carried out in other than the order shown or described herein without departing from the scope of the application. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise, include, or the like, a list of steps or elements, can comprise, include, or the like, additional steps or elements not expressly listed or inherent to such processes, methods, articles, or apparatuses.

[0023] Embodiment one

[0024] FIG. 1 is a schematic diagram of a high-low voltage platform architecture according to an embodiment of the present application. As shown in FIG. 1, the high-low voltage platform architecture includes a high voltage architecture system and a low voltage architecture system. The high voltage architecture system includes a high voltage battery, a high voltage power distribution system, a high voltage control system, and a high voltage load. The high voltage battery is connected to the high voltage load through the high voltage power distribution system. The low voltage architecture system includes a battery management system and a master control unit. The battery management system is connected to the high voltage control system and the high voltage load.

[0025] In the embodiments of the present application, the high voltage battery refers to an energy storage device. The high voltage battery stores electrical energy to power the entire high voltage architecture system. The high voltage power distribution system refers to a system that distributes and transmits electrical energy in the high voltage architecture system. The high voltage power distribution system distributes electrical energy to multiple high voltage loads to meet the power demand of the loads. In addition, the high voltage power distribution system can flexibly schedule and distribute electrical energy according to the power consumption and power consumption time of the loads. In the event of a fault, the high voltage power distribution system can quickly cut off the fault source to prevent the accident from expanding. The high voltage control system can be understood as a component that integrates multiple control functions and is configured to control and adjust the working state of the high voltage load. For example, the high voltage control system can include an oil pump motor controller or a high pressure water pump motor controller. The high voltage load refers to a working component connected to the high voltage control system and driven by high voltage electrical energy. For example, the high voltage load can include an oil pump motor or a high pressure water pump motor. The master control unit is the core control component of the high-low voltage architecture and is responsible for the control and coordination of the entire high-low voltage architecture. For example, the master control unit can be used for vehicle state monitoring or fault diagnosis. The battery management system refers to a component responsible for monitoring the state of the high voltage battery, including but not limited to battery voltage, current, or temperature.

[0026] The high voltage architecture system is composed of a series of high voltage components, including at least a high voltage battery, a high voltage power distribution system, a high voltage control system, and a high voltage load. In the high voltage architecture system, the high voltage battery serves as an energy storage device, responsible for storing electrical energy and providing the required high voltage electrical energy for the high voltage architecture system. These electrical energies are distributed and transmitted to the high voltage load through the high voltage power distribution system. The high voltage control system is connected to the high voltage load to control and adjust the working state of the high voltage load. In the high voltage architecture system, the high voltage battery is connected to the high voltage load through the high voltage power distribution system. The low voltage architecture system is composed of a series of low voltage components, including at least a battery management system and a master control unit. In the low voltage architecture system, the battery management system is responsible for monitoring the state of the battery and is connected to the high voltage control system and the high voltage load. The master control unit, as the core of the high-low voltage architecture system, coordinates the work of the entire high-low voltage architecture system according to the received data.

[0027] Referring to FIG. 1, the master control unit is also in communication connection with a high-voltage power distribution system, the high-voltage power distribution system is in communication connection with a high-voltage control system, and the high-voltage power distribution system is configured to perform high-voltage power-on and power-off control according to a control instruction of the high-voltage control system.

[0028] In the embodiments of the present application, the communication connection refers to a connection established between different systems or components through a communication protocol. For example, the communication protocol can include a Controller Area Network (CAN) bus protocol or a Local Interconnect Network (LIN) bus protocol. Different systems or components can exchange data and information through the communication connection.

[0029] The control instruction can be understood as a command guiding the behavior of a system. The high-voltage power distribution system performs high-voltage power-on and power-off according to this command. For example, the control instruction can include a system power-on instruction or a system power-off instruction.

[0030] High-voltage power-on and power-off refers to the process of starting and shutting down a high-voltage architecture system. The high-voltage power-on process can include low-voltage system wake-up, high-voltage system self-test, high-voltage connection, high-voltage relay closure, system initialization, and high-voltage architecture system running. The high-voltage power-off process can include system state judgment, high-voltage load disconnection, high-voltage connection disconnection, high-voltage relay disconnection, and high-voltage system reset.

[0031] The master control unit and the high-voltage power distribution system are connected through a communication protocol to exchange data and information. The high-voltage power distribution system and the high-voltage control system are connected through a communication protocol. The high-voltage power distribution system receives a control instruction from the high-voltage control system through the communication connection. According to the control instruction, the high-voltage power distribution system performs the corresponding high-voltage power-on process or high-voltage power-off process.

[0032] Based on the above embodiments, the high-voltage architecture system includes a driving high-voltage subsystem and a function control high-voltage subsystem. Correspondingly, the high-voltage power distribution system includes at least a driving power distribution system corresponding to the driving high-voltage subsystem and a function power distribution system corresponding to the function control high-voltage subsystem. The driving power distribution system is in communication connection with the high-voltage control system of the driving high-voltage subsystem, and the function power distribution system is in communication connection with the high-voltage control system of the function control high-voltage subsystem.

[0033] In the embodiments of the present application, the driving high-voltage subsystem can be understood as a system in the high-voltage architecture system that is responsible for driving, including all high-voltage components related to driving, for example, a high-voltage battery or a high-voltage load; the function control high-voltage subsystem can be understood as a system in the high-voltage architecture system that is responsible for executing non-driving functions, wherein the non-driving functions can include a water spraying function or a cleaning function; the driving power distribution system can be understood as a part in the high-voltage power distribution system that is responsible for distributing and transmitting electric energy for the driving high-voltage subsystem; and the function power distribution system can be understood as a part in the high-voltage power distribution system that is responsible for distributing and transmitting electric energy for the function control high-voltage subsystem.

[0034] The high-voltage architecture system is divided into a driving high-voltage subsystem and a function control high-voltage subsystem according to functions, and is responsible for driving and executing non-driving functions, respectively. Correspondingly, the high-voltage power distribution system at least includes a driving power distribution system and a function power distribution system, wherein the driving power distribution system is included in the driving high-voltage subsystem, and the function power distribution system is included in the function control high-voltage subsystem. In the high-voltage architecture system, the driving power distribution system and the high-voltage electric control system of the driving high-voltage subsystem are connected through a communication protocol, and the function power distribution system and the high-voltage electric control system of the function control high-voltage subsystem are connected through a communication protocol. In the high-voltage architecture system, the driving high-voltage subsystem and the function control high-voltage subsystem are interlocked, which increases the safety of driving and the safety of function control, and reduces the energy consumption of the entire high-low voltage architecture platform, wherein the interlocking can include: when part of the functions in the function control high-voltage subsystem need to be stationary, even if misoperation occurs, driving will not be executed.

[0035] On the basis of the above-mentioned embodiments, the high-voltage electric control system includes a domain controller corresponding to at least one high-voltage load, and the high-voltage power distribution system is in communication connection with the domain controller.

[0036] In the embodiments of the present application, the domain controller refers to an electrical control unit configured to turn on and turn off a high-voltage load, for example, the domain controller can include an oil pump motor domain controller or a high-voltage water pump motor domain controller.

[0037] Each domain controller can be connected with one high-voltage load, and at least one domain controller connected with a high-voltage load is included in the high-voltage electric control system, wherein the high-voltage power distribution system and each domain controller corresponding to a high-voltage load are connected through a communication protocol.

[0038] On the basis of the above-mentioned embodiments, the low-voltage architecture system further includes a low-voltage power distribution system and a low-voltage load, and the main control unit is in communication connection with the low-voltage power distribution system, and the main control unit controls the power-on and / or power-off of the low-voltage load through the low-voltage power distribution system.

[0039] In the embodiment of the present application, the low-voltage power distribution system refers to a system for distributing and transmitting electric energy in a low-voltage architecture system, which distributes electric energy to a plurality of low-voltage loads to meet the power demand of the low-voltage loads.

[0040] The low-voltage load refers to a working component connected to a low-voltage control system and driven by low-voltage electric energy only. For example, the low-voltage load can include a cooling fan or a turn signal.

[0041] In the low-voltage architecture system, in addition to the battery management system and the master control unit, the low-voltage power distribution system and the low-voltage load are also included. The master control unit establishes a communication connection with the low-voltage power distribution system through a communication protocol, can send data to the low-voltage power distribution system, and can also receive data from the low-voltage power distribution system. The master control unit can control the start and / or shutdown of the low-voltage load through the communication connection.

[0042] The high-voltage architecture system of the embodiment of the present application at least includes the following high-voltage components: a high-voltage battery, a high-voltage power distribution system, a high-voltage control system, and a high-voltage load. The low-voltage architecture system at least includes the following low-voltage components: a battery management system, a master control unit, a low-voltage power distribution system, and a low-voltage load. In the high-voltage architecture system, the high-voltage battery is responsible for storing electric energy, which is distributed and transmitted to the high-voltage load through the high-voltage power distribution system. The high-voltage control system is connected to the high-voltage load to control and adjust the working state of the high-voltage load. Each high-voltage load can be connected to a domain controller, which is included in the high-voltage control system. The high-voltage power distribution system establishes a communication connection with the domain controller corresponding to each high-voltage load through a communication protocol. The battery management system is responsible for monitoring the state of the battery and is connected to the high-voltage control system and the high-voltage load. The master control unit, as the core of the high-low voltage architecture system, establishes a connection with the high-voltage power distribution system through a communication protocol to exchange data and information, coordinates the work of the entire high-low voltage platform architecture according to the received information, and receives control instructions from the high-voltage control system through the communication connection. According to the control instructions, the high-voltage power distribution system executes the corresponding high-voltage power-on and power-off process. The embodiment of the present application improves the defects of unreasonable power distribution and unclear power distribution scheme by designing a high-low voltage platform architecture. By establishing a communication connection between multiple components, the problem that the high-voltage power scheme on the traditional high-voltage architecture is only controlled by the vehicle On switch is solved. By establishing a communication connection between the high-voltage architecture system and the low-voltage architecture system, the power-on and power-off of the high-voltage architecture system are controlled by the low-voltage communication, and the safety factor of the platform architecture is improved.

[0043] Optionally, based on the above embodiment, the high-low voltage platform architecture can include three sub-structures, namely a CAN bus architecture, a high-voltage architecture, and a low-voltage architecture. The CAN bus architecture is communicatively connected to the high-voltage architecture and the low-voltage architecture through a CAN bus protocol. The high-voltage architecture and the low-voltage architecture are also communicatively connected through the CAN bus protocol. The multiple sub-architectures in the high-low voltage platform architecture achieve data interaction and transmission of the high-low voltage platform architecture through the communication connection.

[0044] FIG. 2 is a CAN bus architecture of the high-low voltage platform architecture. The CAN bus architecture includes three sub-architectures, namely a CAN bus architecture, an upper-layer CAN bus architecture, and a charging CAN bus architecture. As shown in FIG. 2, the CAN bus architecture at least includes a battery management system (BMS), an electric power steering system (EPS), a low-voltage power distribution unit (LPDU), a voice prompt module, an electronic parking brake (EPB), an electronic hydraulic brake system (EHB), a wireless charging controller, an ultrasonic radar controller, a body control module (BCM), a tire pressure controller, a microcontroller unit (MCU), a charging control unit (CCU), an on-board diagnostics (OBD), a wireless charging receiver integrated machine, a direct current charging, a high-voltage power distribution unit (HPDU), an air compressor, a central body control unit (CBCU), and a motor controller. The upper-layer CAN bus architecture at least includes the CBCU, the CCU, the OBD, the BCM, an oil pump motor controller, a high-voltage water pump motor controller, a four-in-one side brush motor controller, a fan motor controller, and an upper-layer computing unit. The charging CAN bus architecture at least includes the BMS, an on-board charger (OBC), the OBD, and a direct current charging pile. All components in the three architectures are communicatively connected to the CCU through the CAN bus protocol.

[0045] Figure 3 is a high-voltage architecture of a high-low voltage platform architecture, as shown in Figure 3, the high-voltage architecture is connected with at least one of the following: a chassis direct current (DC), a motor controller, a wireless charging receiver integrated machine, a BMS, a direct current charging, an air compressor, and a high-voltage electric control system. The high-voltage electric control system includes at least one of the following: an oil pump motor controller, a high-pressure water pump motor controller, a middle (left) motor controller, and a fan motor controller. The high-voltage electric control system is connected with a high-voltage load, and the high-voltage load includes at least one of the following: an oil pump motor, a high-pressure water pump motor, a middle motor, a front motor, and a fan motor.

[0046] Figure 4 is a low-voltage architecture of a high-low voltage platform architecture, as shown in Figure 4, the main control unit of the low-voltage architecture can include a charging control unit (CCU) in the driving high-voltage subsystem and a central body control unit (CBCU) in the functional control high-voltage subsystem. The chassis low-voltage system power distribution and control connected with the CCU controls the low-voltage load, which includes at least one of the following: a CCU high-side switch, an ignition switch, a self-driving switch, a police switch, a charger slow charging wake-up, a parking release switch, an emergency stop switch, a BMS wake-up, and a motor controller wake-up. The cleaning system power distribution and control connected with the CBCU controls the low-voltage load, which includes at least one of the following: a lower water level switch, an upper water level switch, a water level sensor, a box lifting reset switch, a garbage can liquid level switch, a garbage can hydraulic pump, an oil pump motor controller, a water release switch, a garbage can door lock switch, a garbage can opening and closing switch, a garbage can lifting switch, a water inlet push rod motor, a hatch door lock motor, a hatch opening and closing motor, a suction foot lifting motor, a suction lifting motor, an extension motor, and a lifting motor. The power distribution system low-voltage load connected with the LPDU includes at least one of the following: a driving system, a lighting system, an intelligent driving system, a cooling system, a tire pressure controller, a voice prompt module, a fault display screen, an emergency stop remote control or ultrasonic radar host, a hard disk recording integrated machine or BCM + remote receiver. The driving system can include: an EPS, an EPB controller, an EPB motor, a parking release switch, an EHB controller or an oil level, a hydraulic sensor. The lighting system can include: a boundary light, a headlamp, a reversing lamp, a brake lamp, or a turn signal lamp. The low-voltage architecture is connected with the high-voltage architecture through the upper DC / chassis DC and the storage battery.

[0047] Embodiment two

[0048] Figure 5 is a flow chart of a high-low voltage platform architecture control method provided by Embodiment Two of the present application. Based on the above-mentioned embodiment, the present application provides a high-low voltage platform architecture control method. As shown in Figure 5, the method includes:

[0049] S110, in response to the platform wake-up signal, control the low-voltage architecture system to power on.

[0050] In the embodiments of the present application, the wake-up signal can be understood as a start instruction, wherein the wake-up signal can include a physical signal or an electronic signal transmitted through a network. The physical signal refers to a signal triggered by the action of a key or a switch. The electronic signal refers to a CAN network wake-up signal or a Real-Time Clock (RTC) wake-up signal. The role of the wake-up signal is to make the system transition from a sleep or standby state to a working state.

[0051] When the platform receives the wake-up signal, the low-voltage architecture system is triggered to perform a power-on operation to start the normal operation of the low-voltage architecture system. If the wake-up signal is valid, the low-voltage architecture system can perform the power-on operation. If the wake-up signal is invalid, the low-voltage architecture system cannot perform the power-on operation.

[0052] S120, detecting high-voltage environment information of the high-voltage architecture system according to the battery management system and the master control unit of the low-voltage architecture system.

[0053] In the embodiments of the present application, the high-voltage environment information can be understood as a collection of various states and parameters related to high-voltage electricity in the high-voltage architecture system. The high-voltage environment information can include battery temperature or contactor state.

[0054] By integrating the battery management system and the master control unit in the low-voltage architecture system, comprehensive monitoring and detection of the high-voltage environment information in the high-voltage architecture system are realized. By monitoring and analyzing various states and parameters in the high-voltage architecture system through the battery management system and the master control unit, the safe and efficient operation of the electrical system is ensured.

[0055] S130, if the high-voltage environment information meets the preset power-on condition, control the high-voltage architecture system to power up the high-voltage.

[0056] In the embodiments of the present application, the preset power-on condition can be understood as a standard that the system needs to meet before starting the high-voltage architecture system. Powering up the high-voltage can be understood as supplying power to the high-voltage components of the vehicle by the high-voltage battery after meeting the preset power-on condition.

[0057] The preset power-on condition refers to a standard that must be met before starting the high-voltage architecture system. When these conditions are met, it is considered that the high-voltage environment information meets the requirements, and the high-voltage architecture system can safely perform the high-voltage power-on operation.

[0058] When the high-low voltage platform architecture receives a valid wake-up signal in the embodiments of the present application, the low-voltage architecture system is woken up for power-on operation. After the power-on operation is completed, the battery management system and the master control unit integrated in the low-voltage architecture system comprehensively monitor and detect the high-voltage environment information in the high-voltage architecture system. When the detected high-voltage environment information meets the preset power-on condition, the high-voltage architecture system can safely perform the high-voltage operation. By monitoring and detecting the high-voltage environment information in the high-voltage architecture system, the embodiments of the present application can accurately determine whether the state of the high-voltage architecture system meets the power-on condition. When the high-voltage environment information meets the preset power-on condition, the high-voltage architecture system performs the high-voltage operation, thereby reducing the risk of high-voltage power supply failure and simplifying the inspection process of the high-low voltage platform architecture circuit.

[0059] Embodiment three

[0060] FIG. 6 is a flowchart of another high-low voltage platform architecture control method provided by the third embodiment of the present application. Based on the above-mentioned embodiment, the third embodiment of the present application provides another high-low voltage platform architecture control method. As shown in FIG. 6, the method comprises:

[0061] S210, in response to a platform wake-up signal, controlling the low-voltage architecture system to power on.

[0062] S220, triggering the battery management system to perform system self-checking.

[0063] After the low-voltage architecture system successfully powers on, the battery management system is triggered to perform self-checking on a plurality of state parameters of the battery in the system. The battery management system monitors the plurality of state parameters of the battery in real time through the built-in sensor network, and analyzes and processes these parameters by using advanced algorithms and models to identify potential faults or abnormal conditions of the battery management system.

[0064] S230, determining that the battery management system self-checking is successful, detecting the contactor state of the loop contactor corresponding to the high-voltage load of the high-voltage architecture system through the master control unit, and taking the contactor state as the high-voltage environment information, wherein the loop contactor at least includes a pre-charge contactor and a main contactor.

[0065] In the embodiments of the present application, the loop contactor can be understood as an electrical element used to turn on or turn off the circuit in an electrical system; the pre-charge contactor is a special type of loop contactor, which is used to pre-charge the high-voltage load when the high-voltage architecture system is powered on again, so as to effectively protect the high-voltage load from damage caused by large current impact; the main contactor is one of the most important loop contactors in the high-voltage architecture system, which is responsible for controlling the main circuit connection between the high-voltage battery pack and the main high-voltage load. The closing and opening of the main contactor directly determines whether the high-voltage architecture system supplies power to the main load.

[0066] After the battery management system completes the system self-check, a signal is sent to the master control unit, which then judges the contactor state of all loop contactors, including at least the pre-charge contactor and the main contactor. The contactor state of all loop contactors is used as high-voltage environment information of the high-voltage architecture system. If the contactor state of all loop contactors is closed, it indicates that the high-voltage environment information meets the preset power-on condition. At this time, when the contactor state of all loop contactors is closed, it indicates that the high-voltage architecture system can perform high-voltage operation.

[0067] S240, feeding back the contactor state to the battery management system by the master control unit.

[0068] After the battery management system self-check is successful, the master control unit will continue to judge the contactor state of all loop contactors. When the contactor state of all loop contactors is closed, the master control unit will send the information that the contactor state is closed to the battery management system.

[0069] S250, judging by the master control unit whether the contactor state in the high-voltage environment information is the preset closed state configured in the preset power-on condition. If the contactor state is the preset closed state, a power-on control instruction is generated.

[0070] In the embodiments of the present application, the power-on control instruction can be understood as a command to guide the start of the high-voltage architecture system.

[0071] The master control unit monitors the high-voltage environment information and confirms that the contactor state contained in the high-voltage environment information is the preset closed state configured in the preset power-on condition. When the master control unit judges that the contactor state of all loop contactors in the high-low voltage platform architecture is closed, a power-on control instruction that can guide the high-voltage architecture system to perform high-voltage operation is generated. The loop contactor includes at least a pre-charge contactor and a main contactor. When the loop contactor needs to be closed, the closing sequence of the pre-charge contactor and the main contactor is to close the pre-charge contactor first and then close the main contactor. When the high-voltage load is stabilized, the pre-charge contactor is disconnected. When the loop contactor needs to be disconnected, the disconnection sequence of the pre-charge contactor and the main contactor is to disconnect the main contactor first and then disconnect the pre-charge contactor. Whether to disconnect the pre-charge contactor can be selected according to system design or safety requirements.

[0072] S260, receiving the power-on control instruction by the high-voltage power distribution system, and controlling the high-voltage battery to supply power to the high-voltage load when the power-on control instruction is received.

[0073] The master control unit sends the generated power-on control instruction to the high-voltage power distribution system, and when the high-voltage power distribution system receives the power-on control instruction, the high-voltage power distribution system controls the high-voltage battery to distribute and transmit the power required by the high-voltage load according to the power-on control instruction.

[0074] In the embodiment of the application, when the high-low voltage platform architecture receives a valid wake-up signal, the low-voltage architecture system is woken up for power-on operation. After the power-on operation is completed, the battery management system triggers self-checking of a plurality of state parameters of the battery in the system. After the battery management system completes the system self-checking, a signal is sent to the master control unit. The master control unit then judges the contactor state of all loop contactors. The master control unit generates a power-on control instruction according to the received information that the contactor state is in a closed state and sends the power-on control instruction to the battery management system. The battery management system sends the power-on control instruction to the high-voltage power distribution system. The high-voltage power distribution system controls the high-voltage battery to distribute and transmit the power required by the high-voltage load according to the power-on control instruction. In the embodiment of the application, the high voltage of the high-voltage architecture system is controlled by the low-voltage communication, so that the power-on process of the high-voltage architecture system is rationalized. When the preset power-on condition is met, the high-voltage architecture system will be powered up, thereby protecting the high-voltage components in the high-voltage architecture system.

[0075] On the basis of the above-mentioned embodiment, the embodiment of the application further includes: in response to a high-voltage lowering instruction, detecting, by the master control unit, a high-voltage use state of the high-voltage architecture system; determining that the high-voltage use state meets a preset power-off condition, and controlling the high-voltage architecture system to lower the high voltage. The high-voltage use state at least includes one of the following: the self-driving power supply state is in a disconnected state, the cleaning structure working state is in a stopped working state, the vehicle driving state is in a parking state, the battery fault state is in a fault state, and the high-voltage electric control system state is in a fault state, etc.

[0076] In the embodiment of the application, the high-voltage lowering instruction can be understood as a control instruction for indicating that the system needs to close the current high-voltage state. The high-voltage use state refers to the current working state of the high-voltage architecture system. The preset power-off condition can be understood as a standard that the system needs to reach before the high-voltage architecture system closes the current high-voltage state. The preset power-off condition can include: a normal preset power-off condition and an abnormal preset power-off condition. For example, the normal preset power-off condition can include: the self-driving power supply is disconnected, the cleaning structure is stopped working, or the vehicle is stationary and in a parking state. The abnormal preset power-off condition can include: a battery three-level fault or a high-voltage power distribution system three-level fault, wherein the three-level fault can represent that the degree of the fault state is a serious fault state.

[0077] After the high-low voltage platform architecture is powered on successfully, when the low voltage architecture system is controlled to perform a power-off operation by the high-low voltage platform architecture receiving a valid low voltage instruction, the master control unit detects that the current self-powered state of the high voltage architecture system is disconnected, the cleaning structure working state is stopped, the vehicle driving state is parked, the battery fault state is faulty, and the high voltage electric control system state is faulty, and other high voltage usage states, before the high voltage architecture system closes the current high voltage state, it is necessary to determine whether the high voltage usage state of the high voltage architecture system meets the standard for closing the high voltage state, that is, whether the preset power-off condition is met, when it is determined that the high voltage usage state meets the preset power-off condition, the master control unit controls the high voltage architecture system to perform a low voltage operation.

[0078] The embodiment of the application controls the high voltage architecture system to lower the high voltage through low voltage communication, so that the power-off process of the high voltage architecture system is rationalized, the high voltage architecture system performs a low voltage operation when the preset power-off condition is met, and high voltage components in the high voltage architecture system are protected, and the high voltage architecture system has a rationalized emergency measure and power-off process when a fault occurs in the low voltage process.

[0079] Embodiment four

[0080] On the basis of the above-mentioned embodiment, the embodiment of the application provides another high-low voltage platform architecture control method. The embodiment of the application respectively shows the power-on and power-off processes of the driving high voltage subsystem and the power-on and power-off processes of the function control high voltage subsystem.

[0081] As shown in FIG. 7, the power-on process of the driving high voltage subsystem is described, after the wake-up signal is valid, that is, after keyon / A+on, the wake-up CCU performs low voltage power-on, at this time, the electrical state of the high-low voltage platform architecture is normal, after the low voltage power-on is successful, the CCU wakes up the BMS, after the BMS is successfully woken up, it performs self-detection of the battery voltage, current and the like, after the BMS self-detection is successful, it reports the information to the master control unit, the CCU continues to judge the state of all loop contactors of the high-low voltage platform architecture to determine whether the high voltage condition is met, if the high voltage condition is met, then the master control unit sends a high voltage instruction to the BMS, after the BMS receives the high voltage instruction, it sends a high voltage contactor closing instruction to the HPDU, after the HPDU closes the high voltage contactor, it feeds back the information of the closed high voltage contactor to the BMS, after the BMS receives the information that the high voltage contactor has been completely closed, it performs a high voltage operation, after the high voltage operation is successful, the driving high voltage subsystem can normally work, at this time, the high voltage consumer can be logically enabled, if any contactor is not closed or is disconnected or any feedback state is lost or fails in this process, the driving high voltage subsystem fails to perform the high voltage operation, and the high-low voltage platform architecture reports a high voltage fault.

[0082] As shown in FIG. 8, the power-off process of the driving high-voltage subsystem is described, and it is assumed that the high-voltage of the driving high-voltage subsystem is successfully turned on. After the power-off control instruction is valid, the CCU judges whether the preset power-off condition is met. If the preset power-off condition is met, the CCU sends a "contactor open instruction" to each high-voltage consumer. After each high-voltage consumer feeds back that the contactor has been opened, the CCU sends a "high-voltage down instruction" to the BMS. After the BMS receives the "high-voltage down instruction", the high-voltage contactor is opened. Then, the CCU opens the wake-up signal of the high-voltage control system, the high-low voltage platform architecture enters a sleep state, the high-voltage power-off is completed, and if any contactor is not opened or any feedback state is lost or fails in the process, the high-voltage of the driving high-voltage subsystem fails, and the high-low voltage platform architecture reports a high-voltage fault.

[0083] As shown in FIG. 9, the power-on process of the function control high-voltage subsystem is described. When the CBCU receives a high-voltage on instruction, the CBCU judges whether the high-voltage on condition of the function control high-voltage subsystem is met. If the high-voltage on condition is met, the CBCU sends a contactor closing instruction to the HPDU in the function control high-voltage subsystem. After the HPDU feeds back that the contactor state is closed, the function control high-voltage subsystem is successfully turned on, and the high-voltage system uses the consumer according to the logic. If any contactor is not closed or any feedback state is lost or fails in the process, the function control high-voltage subsystem fails, and the high-low voltage platform architecture reports a high-voltage fault of the function control high-voltage subsystem.

[0084] As shown in FIG. 10, the power-off process of the function control high-voltage subsystem is described, and it is assumed that the high-voltage of the function control high-voltage subsystem is turned on. After the CBCU receives a high-voltage down instruction, the CBCU judges whether the high-voltage down condition is met. After the CBCU judges that the high-voltage down condition is met, the CBCU sends a contactor open instruction to each high-voltage component in the function control high-voltage subsystem. After the high-voltage component feeds back that the contactor is opened, the CBCU sends a "function control high-voltage subsystem high-voltage down instruction" to the HPDU. After the HPDU receives the "high-voltage down instruction", the HPDU cuts off the contactor in the function control high-voltage subsystem and feeds back that the contactor is opened. Then, the CBCU opens the wake-up signal of the high-voltage control system, and the function control high-voltage subsystem enters a sleep state. If any contactor is not opened or any feedback state is lost or fails in the process, the function control high-voltage subsystem fails, and the high-low voltage platform architecture reports a high-voltage fault. If the HPDU judges that a fault in the trigger fault list is triggered in the power-on process of the function control high-voltage subsystem, for example, a high-voltage component contactor sticking fault, the HPDU actively opens the high-voltage without sending a high-voltage down instruction.

[0085] Embodiment five

[0086] The embodiment of the present application provides a computer readable storage medium and a computer program product for implementing the high-low voltage platform architecture control method.

[0087] In some embodiments, the high-low voltage platform architecture control method can be implemented as a computer program tangibly embodied in a computer readable storage medium, e.g., memory storage unit. In some embodiments, parts or all of the computer program can be loaded and / or installed onto electronic devices via, for example, read only memory (ROM) and / or communication unit. When the computer program is loaded and / or installed onto the electronic devices, one or more steps of the high-low voltage platform architecture control method can be executed by the processor. Alternatively, in other embodiments, the processor can be configured to perform the high-low voltage platform architecture control method by way of other means, e.g., by way of firmware.

[0088] Embodiments of the systems and techniques described above can be implemented in digital electronic circuitry, integrated circuitry, specially designed application specific integrated circuits, application specific standard products, field programmable gate arrays, computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0089] Computer programs implementing methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed by the processor of the machine, implements the functions / acts specified in the flowcharts and / or block diagrams. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine and partially on a remote machine or entirely on a remote machine or server.

[0090] In the context of this application, a computer readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium can be a machine readable signal medium. A machine readable signal medium can include a based on one or more propagated signals, portable computer disks, RAM, ROM, erasable programmable read-only memory (EPROM or Flash memory), optical storage devices, compact disc read-only memory (CD-ROM), optical storage devices, or any suitable combination of the foregoing.

[0091] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT or LCD monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0092] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0093] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and virtual private server service.

[0094] It should be understood that the steps shown in the above forms of flow can be reordered, added or deleted. For example, the steps described in this application can be executed in parallel, sequentially or in different order, as long as the desired results of the technical solutions of this application can be achieved, which are not limited herein.

Claims

1. A high-low voltage platform architecture, comprising: A high-voltage architecture system and a low-voltage architecture system; wherein the high-voltage architecture system comprises a high-voltage battery, a high-voltage power distribution system, a high-voltage control system and high-voltage loads, the high-voltage battery is connected to the high-voltage loads through the high-voltage power distribution system; the low-voltage architecture system comprises a battery management system and a master control unit, the battery management system is connected to the high-voltage control system and the high-voltage loads respectively; The master control unit is in communication connection with the high-voltage power distribution system, the high-voltage power distribution system is in communication connection with the high-voltage control system, and the high-voltage power distribution system is arranged to perform high-voltage power-on and power-off control according to the control instruction of the high-voltage control system.

2. The high-low voltage platform architecture of claim 1, wherein, The high-voltage architecture system comprises a driving high-voltage subsystem and a function control high-voltage subsystem, the high-voltage power distribution system comprises a driving power distribution system corresponding to the driving high-voltage subsystem and a function power distribution system corresponding to the function control high-voltage subsystem, the driving power distribution system is in communication connection with the high-voltage control system of the driving high-voltage subsystem, and the function power distribution system is in communication connection with the high-voltage control system of the function control high-voltage subsystem.

3. The high-low voltage platform architecture of claim 1, wherein, The high-voltage control system comprises a domain controller corresponding to at least one high-voltage load, and the high-voltage power distribution system is in communication connection with the domain controller.

4. The high-low voltage platform architecture of any of claims 1-3, wherein, The low-voltage architecture system further comprises a low-voltage power distribution system and low-voltage loads, the master control unit is in communication connection with the low-voltage power distribution system, and the master control unit is arranged to control at least one of power-on and power-off of the low-voltage loads through the low-voltage power distribution system.

5. A high-low voltage platform architecture control method applied to the high-low voltage platform architecture of any one of claims 1-4, the method comprising: controlling power-on of the low-voltage architecture system in response to a platform wake-up signal; detecting high-voltage environment information of the high-voltage architecture system according to a battery management system and a master control unit of the low-voltage architecture system; controlling high-voltage power-on of the high-voltage architecture system in response to the high-voltage environment information meeting a preset power-on condition.

6. The method of claim 5, wherein, The detecting high-voltage environment information of the high-voltage architecture system according to the battery management system and the master control unit of the low-voltage architecture system comprises: triggering the battery management system to perform system self-checking; determining that the battery management system self-checking is successful, detecting a contactor state of a loop contactor corresponding to the high-voltage loads of the high-voltage architecture system through the master control unit, and taking the contactor state as the high-voltage environment information, wherein the loop contactor comprises a pre-charging contactor and a main contactor; feeding back the contactor state to the battery management system by using the master control unit.

7. The method of claim 5, wherein, The controlling high-voltage power-on of the high-voltage architecture system in response to the high-voltage environment information meeting a preset power-on condition comprises: judging whether the contactor state in the high-voltage environment information is a preset closed state configured for the preset power-on condition through the master control unit, generating a power-on control instruction in response to the contactor state being the preset closed state; receiving the power-on control instruction through the high-voltage power distribution system, and controlling the high-voltage battery to supply power to the high-voltage loads when the power-on control instruction is received.

8. The method of claim 5, further comprising: in response to a high-voltage-off instruction, detecting, by the master control unit, a high-voltage usage state of the high-voltage architecture system; determining that the high-voltage usage state satisfies a preset power-off condition, and controlling the high-voltage architecture system to be powered off.

9. The method of claim 8, wherein, The high-voltage usage state satisfying the preset power-off condition comprises at least one of: the self-powered state being a disconnected state; the cleaning structure working state being a stopped working state; the vehicle driving state being a parking state; the battery fault state being a fault state; the high-voltage electronic control system state being a fault state.

10. A computer readable storage medium, the computer readable storage medium storing computer instructions for causing a processor to implement the high-low voltage platform architecture control method of any one of claims 5-9 when executed.

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