Multi-voltage platform control method and device and related equipment

Abstract

The embodiment of the invention provides a multi-voltage platform control method and device and related equipment, and relates to the technical field of vehicle engineering. The method comprises the following steps: when a high-voltage battery and a first DC / DC converter are in a normal state, controlling the first DC / DC converter to be in a working mode; based on a first preset voltage gradient, the voltage of a first low-voltage battery is boosted to a first preset working voltage, and the first low-voltage battery is used for supplying power to a first low-voltage electric appliance; when the high-voltage battery and the first DC / DC converter are in the normal state, judging the state of the second DC / DC converter; when the second DC / DC converter is in the normal state, controlling the second DC / DC converter to be in a working mode; and based on a second preset voltage gradient, the voltage of a second low-voltage battery is boosted to a second preset working voltage, and the voltage of the second low-voltage battery is used for supplying power to a second low-voltage electric appliance. According to the embodiment of the invention, the three voltage platforms can work simultaneously and independently.

Description

Technical Field

[0001] This application relates to the field of vehicle engineering technology, and in particular to a multi-voltage platform control method, device and related equipment. Background Technology

[0002] Currently, vehicles typically employ a dual-voltage platform control method. For example, in high-voltage hybrid vehicles, the high-voltage DC power from the high-voltage platform supplies power to the low-voltage platform via a DC / DC / DC converter, or a 48V mild hybrid system uses a DC / DC converter to convert the DC power to a 12V or 24V low-voltage platform. However, when using a passenger vehicle with a 12V voltage platform and borrowing electrical appliances from a 24V commercial platform, a 24V bus is missing, there is no independent power supply, and the high voltage can only be reduced to 12V via a DC / DC converter, making it impossible to achieve simultaneous and independent operation of the three voltage platforms. Summary of the Invention

[0003] The purpose of this application is to provide a multi-voltage platform control method, apparatus, and related equipment to solve the problem that three voltage platforms cannot work simultaneously and independently.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a multi-voltage platform control method, the method comprising:

[0006] When the high-voltage battery and the first DC / DC / DC converter are in normal condition, control the first DC / DC converter to be in the working mode;

[0007] Based on a first preset voltage gradient, the voltage of the first low-voltage battery is increased to a first preset operating voltage, and the first low-voltage battery is used to power the first low-voltage electrical appliance.

[0008] If the high-voltage battery and the first DC / DC converter are in normal condition, determine the state of the second DC / DC converter;

[0009] When the second DC / DC converter is in normal operation, control the second DC / DC converter to be in working mode;

[0010] Based on the second preset voltage gradient, the voltage of the second low-voltage battery is increased to the second preset operating voltage, and the voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

[0011] Secondly, embodiments of this application also provide a multi-voltage platform control device, the device comprising:

[0012] The first setting module is used to control the first DC / DC converter to be in working mode when the high-voltage battery and the first DC / DC converter are in normal condition.

[0013] The first processing module is used to boost the voltage of the first low-voltage battery to the first preset operating voltage based on the first preset voltage gradient. The first low-voltage battery is used to power the first low-voltage electrical appliance.

[0014] The first judgment module is used to determine the state of the second DC / DC converter when the high-voltage battery and the first DC / DC converter are in normal state;

[0015] The second setting module is used to control the second DC / DC converter to be in the working mode when the second DC / DC converter is in the normal state.

[0016] The second processing module is used to boost the voltage of the second low-voltage battery to the second preset operating voltage based on the second preset voltage gradient, and the voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

[0017] Thirdly, embodiments of this application also provide an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the multi-voltage platform control method described in the first aspect.

[0018] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the multi-voltage platform control method described in the first aspect.

[0019] Fifthly, embodiments of this application also provide a computer program product, including computer instructions that, when executed by a processor, implement the steps of the multi-voltage platform control method described in the first aspect.

[0020] Compared with the prior art, the method provided in this application embodiment controls the first DC / DC converter to be in working mode when the high-voltage battery and the first DC / DC converter are in normal state, sets the voltage of the first low-voltage battery to a target voltage, and boosts the voltage of the first low-voltage battery to a first preset working voltage based on a first preset voltage gradient. The first low-voltage battery is used to power the first low-voltage electrical appliance, and the first low-voltage platform works independently. When the high-voltage battery and the first DC / DC converter are in normal state, the state of the second DC / DC converter is determined. When the second DC / DC converter is in normal state, it controls the second DC / DC converter to be in working mode, sets the voltage of the second low-voltage battery to a target voltage, and boosts the voltage of the second low-voltage battery to a second preset working voltage based on a second preset voltage gradient. The voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance, and the second low-voltage platform works independently, thus achieving simultaneous and independent operation of three voltage platforms. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a flowchart of a multi-voltage platform control method provided in an embodiment of this application;

[0023] Figure 2 This is a structural diagram of a multi-voltage platform control device provided in an embodiment of this application;

[0024] Figure 3 This is a structural diagram of a multi-voltage platform control system provided in an embodiment of this application;

[0025] Figure 4 This is a flowchart of a multi-voltage platform control system provided in an embodiment of this application;

[0026] Figure 5 This is a structural diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0027] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, "A or B" covers three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0029] To make the technical problems, technical solutions and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0030] This application provides a multi-voltage platform control method. For example... Figure 1 As shown, Figure 1 This is a flowchart of the multi-voltage platform control method provided in the embodiments of this application, such as... Figure 1 As shown, it includes the following steps:

[0031] Step 101: With the high-voltage battery and the first DC / DC / DC converter in normal condition, control the first DC / DC converter to be in working mode;

[0032] It is important to note that before this step, before the main positive contactor is closed, the DC bus capacitor voltage is increased to more than 90% of the total battery voltage through the pre-charge circuit to limit the peak inrush current from exceeding the allowable value. Then the main positive contactor is closed and the pre-charge relay is disconnected to complete the high-voltage power-on.

[0033] In this step, the host computer determines the communication status, state of charge (SOC), main relay status, voltage range, and discharge capacity of the high-voltage battery. If the high-voltage battery is in normal communication mode, the SOC is greater than the set value, the main relay is closed, the voltage is within the set reasonable range, the discharge capacity meets the set requirements, and there are no serious system malfunctions, the host computer determines the communication status of the first DC-DC converter (DC / DC converter) to see if it is in standby mode or high-voltage to low-voltage conversion mode (operating mode), and if there are no malfunctions affecting operation.

[0034] Furthermore, when the first DC / DC converter is in normal state and standby mode, the first DC / DC converter is controlled to be in working mode, and the first target voltage is set to the voltage of the first low-voltage battery.

[0035] Step 102: Based on the first preset voltage gradient, increase the voltage of the first low-voltage battery to the first preset operating voltage. The first low-voltage battery is used to power the first low-voltage electrical appliance.

[0036] In this step, the first DC / DC converter is kept in the working mode, and the first target voltage is increased to the first preset working voltage according to the first preset voltage gradient. The first low-voltage battery is used to power the first low-voltage electrical appliance.

[0037] Step 103: If the high-voltage battery and the first DC / DC converter are in normal condition, determine the state of the second DC / DC converter;

[0038] In this step, the host computer determines the communication status of the high-voltage battery and the first DC / DC converter, and whether they are in working mode. If the high-voltage battery and the first DC / DC converter are in normal communication status and working mode, the host computer determines the communication status of the second DC / DC converter, and whether it is in standby mode or working mode.

[0039] Step 104: When the second DC / DC converter is in normal operation, control the second DC / DC converter to be in working mode;

[0040] In this step, when the second DC / DC converter is in normal communication and in standby mode, and there are no faults affecting its operation, the second DC / DC converter is controlled to enter the working mode, and the second target voltage is the voltage of the second low-voltage battery.

[0041] Step 105: Based on the second preset voltage gradient, increase the voltage of the second low-voltage battery to the second preset operating voltage. The voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

[0042] In this step, the second DC / DC converter is kept in the working mode, and the second target voltage is increased to the second preset working voltage according to the second preset voltage gradient. The second low-voltage battery is used to power the second low-voltage electrical appliance.

[0043] Optionally, the method further includes:

[0044] When the state of charge of the high-voltage battery is lower than a first set value, power generation is performed, and the power generation power is greater than the output power of the high-voltage battery but does not exceed the maximum power generation power of the high-voltage battery.

[0045] When the state of charge of the high-voltage battery is lower than the second set value, the second DC / DC converter is controlled to be in standby mode, where the second set value is less than the first set value.

[0046] When the state of charge of the high-voltage battery is lower than a third set value, the first DC / DC converter is controlled to enter standby mode, and the maximum output power of the high-voltage battery is reduced, wherein the third set value is less than the second set value.

[0047] In this embodiment, when the state of charge (SBC) of the high-voltage battery is lower than a first preset value, power generation occurs, with the generated power exceeding the output power of the high-voltage battery but not exceeding its allowable power generation capacity, providing a buffer time for entering the second stage. When the SBC of the high-voltage battery is lower than a second preset value, the second DC / DC converter is controlled to enter standby mode to reduce non-essential loads and lower the load on the high-voltage bus. When the SBC of the high-voltage battery is lower than a third preset value, the first DC / DC converter is controlled to enter standby mode, stopping energy extraction from the high-voltage bus and reducing the maximum output power of the high-voltage battery. This three-stage decreasing energy management can gradually reduce the load on the high-voltage battery before it is nearly depleted, preventing deep discharge. It should be noted that the second preset value is less than the first preset value, and the third preset value is less than the second preset value.

[0048] Optionally, the method further includes:

[0049] In the event that the high-voltage battery is in an abnormal state, the voltage of the first low-voltage battery is reduced to below the first preset operating voltage, and the second DC / DC converter is controlled to stop working.

[0050] In this embodiment, when the high-voltage battery is in a communication abnormality state, a relay abnormality state, the voltage is within an unreasonable setting range, or there is a high-level fault, the voltage of the first low-voltage battery is reduced to below the first preset operating voltage, thereby reducing the maximum output power of the first DC / DC converter.

[0051] Optionally, the method further includes:

[0052] If the first DC / DC converter is in an abnormal state, control both the first DC / DC converter and the second DC / DC converter to stop working.

[0053] In this embodiment, if the first DC / DC converter is in a communication abnormality state, an abnormal operating mode, or an abnormal low voltage output, the first DC / DC converter and the second DC / DC converter are controlled to stop working to avoid the high-voltage battery being subjected to additional impact.

[0054] Optionally, the method further includes:

[0055] If the second DC / DC converter is in an abnormal state, control the second DC / DC converter to stop working and control the first DC / DC converter to enter working mode.

[0056] In this embodiment, when the second DC / DC converter is in a communication abnormality state, an abnormal operating mode, or an abnormal low voltage output, the second DC / DC converter is controlled to stop working, the energy channel of the second DC / DC converter is blocked, and the first DC / DC converter is controlled to be in operating mode, and the first DC / DC converter continues to provide basic power supply.

[0057] Optionally, the method further includes:

[0058] If the second DC / DC converter is in an abnormal state, control the second DC / DC converter to attempt to resume operation;

[0059] If the number of times the second DC / DC converter attempts to restart exceeds a preset number, the second DC / DC converter will be controlled to stop operating.

[0060] In this embodiment, when the second DC / DC converter is in an abnormal state, the second DC / DC converter is controlled to attempt to restart. By recovering from the transient fault, the availability of the system is improved. Irreversible damage is identified by a preset number of attempts, and the second DC / DC converter is controlled to stop working to avoid impact on the high-voltage platform.

[0061] The method provided in this application embodiment controls the first DC / DC converter to operate in a working mode when the high-voltage battery and the first DC / DC converter are in normal conditions. The voltage of the first low-voltage battery is set to a target voltage, and the voltage of the first low-voltage battery is increased to a first preset operating voltage based on a first preset voltage gradient. The first low-voltage battery is used to power a first low-voltage electrical appliance, and the first low-voltage platform operates independently. When the high-voltage battery and the first DC / DC converter are in normal conditions, the state of the second DC / DC converter is determined. When the second DC / DC converter is in normal conditions, it controls the second DC / DC converter to operate in a working mode, sets the voltage of the second low-voltage battery to a target voltage, and increases the voltage of the second low-voltage battery to a second preset operating voltage based on a second preset voltage gradient. The voltage of the second low-voltage battery is used to power a second low-voltage electrical appliance, and the second low-voltage platform operates independently, thus achieving simultaneous and independent operation of three voltage platforms.

[0062] The various methods of the embodiments of this application have been described above. Apparatus for implementing the above methods will now be provided.

[0063] This application also provides a multi-voltage platform control device 200. For example... Figure 2 As shown, Figure 2 This is a structural diagram of the multi-voltage platform control device 200 provided in the embodiments of this application, as shown below. Figure 2 As shown, it includes the following modules:

[0064] The first setting module 201 is used to control the first DC / DC converter to be in working mode when the high-voltage battery and the first DC / DC converter are in normal state.

[0065] The first processing module 202 is used to increase the voltage of the first low-voltage battery to the first preset operating voltage based on the first preset voltage gradient. The first low-voltage battery is used to supply power to the first low-voltage electrical appliance.

[0066] The first judgment module 203 is used to determine the state of the second DC / DC converter when the high-voltage battery and the first DC / DC converter are in normal state;

[0067] The second setting module 204 is used to control the second DC / DC converter to be in the working mode when the second DC / DC converter is in the normal state.

[0068] The second processing module 205 is used to boost the voltage of the second low-voltage battery to the second preset operating voltage based on the second preset voltage gradient, and the voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

[0069] Optionally, the device further includes:

[0070] The third processing module is used to generate electricity when the state of charge of the high-voltage battery is lower than a first set value, and the power generation is greater than the output power of the high-voltage battery and does not exceed the maximum power generation of the high-voltage battery.

[0071] The fourth processing module is used to control the second DC / DC converter to be in standby mode when the state of charge of the high-voltage battery is lower than the second set value, wherein the second set value is less than the first set value.

[0072] The fifth processing module is used to control the first DC / DC converter to enter standby mode and reduce the maximum output power of the high-voltage battery when the state of charge of the high-voltage battery is lower than the third set value, wherein the third set value is less than the second set value.

[0073] Optionally, the device further includes:

[0074] The first control module is used to reduce the voltage of the first low-voltage battery to below the first preset operating voltage and control the second DC / DC converter to stop working when the high-voltage battery is in an abnormal state.

[0075] Optionally, the device further includes:

[0076] The second control module is used to control the first DC / DC converter and the second DC / DC converter to stop working when the first DC / DC converter is in an abnormal state.

[0077] Optionally, the device further includes:

[0078] The third control module is used to control the second DC / DC converter to stop working and control the first DC / DC converter to enter working mode when the second DC / DC converter is in an abnormal state.

[0079] Optionally, the third control module further includes:

[0080] The first attempt unit is used to control the second DC / DC converter to attempt to restart when the second DC / DC converter is in an abnormal state;

[0081] The first control unit is configured to control the second DC / DC converter to stop operating if the number of times the second DC / DC converter attempts to restart exceeds a preset number.

[0082] It should be noted that the device in this embodiment corresponds to the multi-voltage platform control method described above. The implementation methods in the above embodiments are all applicable to the embodiments of this device and can achieve the same technical effect. The device provided in this application embodiment can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiments and the beneficial effects will not be described in detail.

[0083] The technical solution provided in this application can be applied to multi-voltage platform control systems. For example... Figure 3 As shown, Figure 3 This is a structural diagram of the multi-voltage platform control system provided in the embodiments of this application, as shown below. Figure 3 As shown, it includes: a host computer, high-voltage electrical appliances, a high-voltage battery, a DC-DC converter 1, a DC-DC converter 2, a low-voltage battery 1, a low-voltage electrical appliance 1, a low-voltage battery 2, and a low-voltage electrical appliance 2. The host computer is used to acquire and determine the system status and output control commands to components. The high-voltage battery is a storage battery for the high-voltage platform, supplying energy to the high-voltage platform and providing voltage regulation. The high-voltage electrical appliances are the electrical components of the high-voltage platform, consuming energy and also supplying energy. The DC-DC converter 1 is the DC-DC converter for the existing low-voltage platform, reducing the high-voltage platform voltage to a low voltage usable by the original vehicle electrical platform. The low-voltage... Battery 1 is the existing low-voltage platform's storage battery. When the DC-DC converter 1 is not working, it supplies power to the low-voltage platform 1 and provides voltage regulation when the DC-DC converter 1 is working. Low-voltage 1 appliances are the existing low-voltage platform's appliances that consume electrical energy on the low-voltage platform 1. DC-DC converter 2 is an additional low-voltage platform DC-DC converter that reduces the high-voltage platform voltage to the operating voltage of low-voltage platform 2. Low-voltage 2 battery 2 is the existing low-voltage platform's storage battery. When the DC-DC converter 2 is not working, it supplies power to the low-voltage platform 2 and provides voltage regulation when the DC-DC converter 2 is working. Low-voltage 2 appliances are the low-voltage platform's appliances that consume electrical energy on the low-voltage platform 2.

[0084] It should be noted that the system in this embodiment corresponds to the multi-voltage platform control method described above. The implementation methods in each of the above embodiments are applicable to the embodiments of this system and can achieve the same technical effect. The system provided in this application embodiment can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiments and the beneficial effects will not be described in detail here.

[0085] like Figure 4 As shown, Figure 4 This is a flowchart of the multi-voltage platform control system provided in the embodiments of this application, such as... Figure 4 As shown, it includes:

[0086] Before the main positive contactor closes, the DC bus capacitor voltage is increased to more than 90% of the total battery voltage through the pre-charge circuit to limit the peak inrush current from not exceeding the allowable value. Then the main positive contactor is closed and the pre-charge relay is disconnected to complete the high-voltage power-on.

[0087] The high-voltage battery feeds back its status to the host computer. The host computer determines the high-voltage battery's communication status, state of charge, main relay status, voltage range, and discharge capacity. If the high-voltage battery is in a normal communication state, its SOC is greater than the set value, the main relay is in a closed state, the voltage is within the set reasonable range, the discharge capacity meets the set requirements, and there is no serious system malfunction, the first DC / DC converter feeds back its status to the host computer. If the conditions are not met, the current processing flow is terminated.

[0088] The host computer determines the communication status of the first DC / DC converter to see if it is in standby mode or high-voltage to low-voltage mode (operating mode) and if there are no faults affecting its operation. When the first DC / DC converter is in normal state or standby mode, the host computer controls the first DC / DC converter to enter operating mode and sets the first target voltage to the voltage of the first low-voltage battery; if the conditions are not met, the host computer terminates the current processing flow.

[0089] The first DC / DC converter is kept in the working mode. The first DC / DC converter feeds back its status to the host computer. The host computer judges the response status of the first DC / DC converter. If the host computer judges that the response of the first DC / DC converter is normal, the first target voltage is increased to the first preset working voltage according to the first preset voltage gradient. If the condition is not met, the host computer terminates the current processing flow.

[0090] The first DC / DC converter is kept in working mode. The first DC / DC converter feeds back its status to the host computer. The host computer judges the response status of the first DC / DC converter. If the host computer judges that the response of the first DC / DC converter is normal, the second DC / DC converter feeds back its status to the host computer. If the condition is not met, the host computer terminates the current processing flow.

[0091] The host computer determines the communication status of the second DC / DC converter and whether it is in standby or operating mode. If the second DC / DC converter is in normal communication and standby mode, and there are no faults affecting its operation, the host computer controls the second DC / DC converter to enter operating mode, with the second target voltage being the voltage of the second low-voltage battery. If the conditions are not met, the second DC / DC converter re-attempts to operate within a specified number of times. If the second DC / DC converter still fails to operate normally after re-attempting the specified number of times, the host computer terminates the current processing flow.

[0092] The second DC / DC converter is kept in operating mode. The second DC / DC converter feeds back its status to the host computer. The host computer determines the response status of the second DC / DC converter. If the host computer determines that the response of the second DC / DC converter is normal, the second target voltage is increased to the second preset operating voltage according to the second preset voltage gradient. If the condition is not met, the second DC / DC converter re-attempts to operate within a specified number of times. If the second DC / DC converter still fails to operate normally after re-attempting the specified number of times, the host computer terminates the current processing flow.

[0093] The second DC / DC converter is kept in operating mode. The second DC / DC converter feeds back its status to the host computer. The host computer judges the response status of the second DC / DC converter. If the host computer judges that the response of the second DC / DC converter is normal, the multi-voltage control platform runs successfully.

[0094] It should be noted that the system in this embodiment corresponds to the multi-voltage platform control method described above. The implementation methods in each of the above embodiments are applicable to the embodiments of this system and can achieve the same technical effect. The system provided in this application embodiment can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts that are the same as those in the method embodiments and the beneficial effects will not be described in detail here.

[0095] This application also provides an electronic device 500. For example... Figure 5 As shown, Figure 5 This is a structural diagram of the electronic device provided in the embodiments of this application, such as... Figure 5 As shown, it includes:

[0096] Processor 510 is used to read the program from memory 530 and execute the following procedures:

[0097] When the high-voltage battery and the first DC / DC / DC converter are in normal condition, control the first DC / DC converter to be in the working mode;

[0098] Based on a first preset voltage gradient, the voltage of the first low-voltage battery is increased to a first preset operating voltage, and the first low-voltage battery is used to power the first low-voltage electrical appliance.

[0099] If the high-voltage battery and the first DC / DC converter are in normal condition, determine the state of the second DC / DC converter;

[0100] When the second DC / DC converter is in normal operation, control the second DC / DC converter to be in working mode;

[0101] Based on the second preset voltage gradient, the voltage of the second low-voltage battery is increased to the second preset operating voltage, and the voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

[0102] Transceiver 520 is used to receive and send data under the control of processor 510.

[0103] Among them, Figure 5 In this context, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 510) and memory (memory 530). The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. A bus interface provides an interface. Transceiver 520 may be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium. Processor 510 is responsible for managing the bus architecture and general processing, and memory 530 may store data used by processor 510 during operation.

[0104] Optionally, the processor 510 is configured to read the program from the memory 530 and execute the following processes:

[0105] When the state of charge of the high-voltage battery is lower than a first set value, power generation is performed, and the power generation power is greater than the output power of the high-voltage battery but does not exceed the maximum power generation power of the high-voltage battery.

[0106] When the state of charge of the high-voltage battery is lower than the second set value, the second DC / DC converter is controlled to be in standby mode, where the second set value is less than the first set value.

[0107] When the state of charge of the high-voltage battery is lower than a third set value, the first DC / DC converter is controlled to enter standby mode, and the maximum output power of the high-voltage battery is reduced, wherein the third set value is less than the second set value.

[0108] Optionally, the processor 510 is configured to read the program from the memory 530 and execute the following processes:

[0109] In the event that the high-voltage battery is in an abnormal state, the voltage of the first low-voltage battery is reduced to below the first preset operating voltage, and the second DC / DC converter is controlled to stop working.

[0110] Optionally, the processor 510 is configured to read the program from the memory 530 and execute the following processes:

[0111] If the first DC / DC converter is in an abnormal state, control both the first DC / DC converter and the second DC / DC converter to stop working.

[0112] Optionally, the processor 510 is configured to read the program from the memory 530 and execute the following processes:

[0113] If the second DC / DC converter is in an abnormal state, control the second DC / DC converter to stop working and control the first DC / DC converter to enter working mode.

[0114] Optionally, the processor 510 is configured to read the program from the memory 530 and execute the following processes:

[0115] If the second DC / DC converter is in an abnormal state, control the second DC / DC converter to stop working and control the first DC / DC converter to enter working mode.

[0116] It should be noted that the electronic device 500 in this embodiment is the same as the multi-voltage platform control method described above. The implementation methods in the above embodiments are all applicable to the embodiments of this electronic device 500 and can achieve the same technical effect. The electronic device 500 provided in this application embodiment can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiments and the beneficial effects will not be described in detail.

[0117] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program implements the various processes of the above-described multi-voltage platform control method embodiments and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0118] This application also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, they implement the various processes of the above-described multi-voltage platform control method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0119] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0120] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0121] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A multi-voltage platform control method, characterized in that, The method includes: When the high-voltage battery and the first DC / DC / DC converter are in normal condition, control the first DC / DC converter to be in the working mode; Based on a first preset voltage gradient, the voltage of the first low-voltage battery is increased to a first preset operating voltage, and the first low-voltage battery is used to power the first low-voltage electrical appliance. If the high-voltage battery and the first DC / DC converter are in normal condition, determine the state of the second DC / DC converter; When the second DC / DC converter is in normal operation, control the second DC / DC converter to be in working mode; Based on the second preset voltage gradient, the voltage of the second low-voltage battery is increased to the second preset operating voltage, and the voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

2. The method according to claim 1, characterized in that, The method further includes: When the state of charge of the high-voltage battery is lower than a first set value, power generation is performed, and the power generation power is greater than the output power of the high-voltage battery but does not exceed the maximum power generation power of the high-voltage battery. When the state of charge of the high-voltage battery is lower than the second set value, the second DC / DC converter is controlled to be in standby mode, where the second set value is less than the first set value. When the state of charge of the high-voltage battery is lower than a third set value, the first DC / DC converter is controlled to enter standby mode, and the maximum output power of the high-voltage battery is reduced, wherein the third set value is less than the second set value.

3. The method according to claim 1, characterized in that, The method further includes: In the event that the high-voltage battery is in an abnormal state, the voltage of the first low-voltage battery is reduced to below the first preset operating voltage, and the second DC / DC converter is controlled to stop working.

4. The method according to claim 1, characterized in that, The method further includes: If the first DC / DC converter is in an abnormal state, control both the first DC / DC converter and the second DC / DC converter to stop working.

5. The method according to claim 1, characterized in that, The method further includes: If the second DC / DC converter is in an abnormal state, control the second DC / DC converter to stop working and control the first DC / DC converter to enter working mode.

6. The method according to claim 5, characterized in that, The method further includes: If the second DC / DC converter is in an abnormal state, control the second DC / DC converter to attempt to resume operation; If the number of times the second DC / DC converter attempts to restart exceeds a preset number, the second DC / DC converter will be controlled to stop operating.

7. A multi-voltage platform control device, characterized in that, The device includes: The first setting module is used to control the first DC / DC converter to be in working mode when the high-voltage battery and the first DC / DC converter are in normal condition. The first processing module is used to boost the voltage of the first low-voltage battery to the first preset operating voltage based on the first preset voltage gradient. The first low-voltage battery is used to power the first low-voltage electrical appliance. The first judgment module is used to determine the state of the second DC / DC converter when the high-voltage battery and the first DC / DC converter are in normal state; The second setting module is used to control the second DC / DC converter to be in the working mode when the second DC / DC converter is in the normal state. The second processing module is used to boost the voltage of the second low-voltage battery to the second preset operating voltage based on the second preset voltage gradient, and the voltage of the second low-voltage battery is used to power the second low-voltage electrical appliance.

8. An electronic device, characterized in that, It includes a transceiver, a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that, Includes computer instructions that, when executed by a processor, implement the steps of the method as claimed in any one of claims 1 to 6.

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