Vehicle power supply topology, vehicle power supply method, computer device, readable storage medium and program product

Abstract

This application relates to a vehicle power supply topology, a vehicle power supply method, an apparatus, a computer device, a computer-readable storage medium, and a computer program product. The vehicle power supply topology includes: at least two sub-topologies; each sub-topology includes a battery circuit and at least two power supply circuits; the positive terminal of each battery circuit is connected to one end of each power supply circuit, the other end of each power supply circuit is connected to one end of a load matching the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit; the current output from the positive terminal of the battery circuit flows into the load after being processed by the power supply circuit, and supplies power to the load. This vehicle power supply topology does not affect the vehicle's power supply function, reduces maintenance costs, and improves the versatility of the power supply topology.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a vehicle power supply topology method, apparatus, computer equipment, computer-readable storage medium, and computer program product. Background Technology

[0002] The high-voltage system of new energy trucks includes a power battery system, a power motor system, a DC / DC controller, a DC / AC controller, a thermal management system, a charging system, and a high-voltage power distribution system. The diagrammatic representation of the above functions being rationally distributed in different power circuits and showing the key components is called the vehicle power supply topology.

[0003] The current power supply topology design for new energy commercial vehicles concentrates all power circuits together, resulting in excessive concentration of circuits, which affects the vehicle's power supply function, increases maintenance costs, and reduces versatility. Summary of the Invention

[0004] Therefore, it is necessary to provide a vehicle power supply topology, vehicle power supply method, computer equipment, computer-readable storage medium, and computer program product that can address the above-mentioned technical problems without affecting the vehicle's power supply function, reduce maintenance costs, and improve the poor versatility of vehicle power supply topology.

[0005] In a first aspect, this application provides a vehicle power supply topology, including:

[0006] The vehicle power supply topology includes at least two sub-topologies; each sub-topology includes a battery circuit and at least two power supply circuits.

[0007] The positive terminal of the battery circuit is connected to one end of each power supply circuit, the other end of each power supply circuit is connected to one end of a load that matches the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit.

[0008] The current output from the positive port of the battery circuit is processed by the power supply circuit and then flows into the load to supply power to the load.

[0009] In one embodiment, each power supply circuit includes a relay element, a resistor, and a fuse element; one end of the relay element is connected to the positive terminal of the battery circuit, the other end of the relay element is connected to one end of the resistor, the other end of the resistor is connected to one end of the fuse element, the other end of the fuse element is connected to one end of a load that matches the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit.

[0010] The relay element is used to control the on or off of the power supply circuit; the resistor is used to change the electrical parameters of the power supply circuit; the fuse element is used to disconnect the connection with the load after melting when the electrical parameters of the fuse element are greater than a preset electrical parameter threshold.

[0011] The current output from the positive port of the battery circuit flows into the fuse after passing through the relay element and / or the resistor. The current output from the fuse flows into the load and supplies power to the load.

[0012] In one embodiment, the at least two power supply circuits include at least one of a primary power supply circuit, a secondary power supply circuit, or a backup power supply circuit;

[0013] The load matched with the primary power supply circuit is the motor load; the load matched with the secondary power supply circuit is any load other than the motor load; and the load matched with the backup power supply circuit is any external load of the vehicle.

[0014] In one embodiment, the relay element in the main power supply circuit includes a first element and a second element. One end of both the first element and the second element is connected to the positive port of the battery circuit. The other end of the first element is connected to one end of a first resistor in the main power supply circuit. The other end of the second element is connected to the other end of the first resistor. The other ends of the first resistor and the second element are both connected to one end of a first fuse element in the main power supply circuit. The other end of the first fuse element is connected to one end of a motor load that matches the main power supply circuit. The other end of the motor load is connected to the negative port of the battery circuit.

[0015] In one embodiment, the at least two sub-topologies include a first sub-topology, and the secondary power supply loop of the first sub-topology further includes a first voltage controller that converts DC voltage to AC voltage.

[0016] The relay element of the secondary power supply circuit of the first sub-topology includes a third element and a fourth element. One end of the third element and the fourth element are both connected to the positive port of the battery circuit. The other end of the third element is connected to one end of the second resistor in the circuit. The other end of the fourth element is connected to the other end of the second resistor. The other ends of the second resistor and the fourth element are both connected to one end of the second fuse element in the circuit. The other end of the second fuse element is connected to the first terminal of the first voltage controller. The second terminal of the first voltage controller is connected to the oil pump. The third terminal of the first voltage controller is connected to the negative port of the battery circuit.

[0017] The other end of the second resistor and the other end of the fourth element are also connected to one end of the third fuse element in the circuit, the other end of the third fuse element is connected to one end of the first load, and the other end of the first load is connected to the negative terminal of the battery circuit.

[0018] In one embodiment, the at least two sub-topologies include a second sub-topology, and the secondary power supply loop of the second sub-topology further includes a second voltage controller for reducing the voltage value;

[0019] The relay elements of the secondary power supply circuit of the second sub-topology include a fifth element and a sixth element. One end of the fifth element and the sixth element are both connected to the positive port of the battery circuit. The other end of the fifth element is connected to one end of the third resistor in the circuit. The other end of the sixth element is connected to the other end of the third resistor. The other ends of the third resistor and the sixth element are both connected to one end of the fourth fuse in the circuit. The other end of the fourth fuse is connected to the second voltage controller. The second voltage controller is connected to one end of the battery. The other end of the battery is connected to the negative port of the battery circuit.

[0020] The other end of the third resistor and the other end of the sixth element are both connected to one end of the fifth fuse in the circuit. The other end of the fifth fuse is connected to one end of the second load, and the other end of the second load is connected to the negative terminal of the battery circuit.

[0021] Secondly, this application also provides a vehicle power supply method, wherein the vehicle includes the vehicle power supply topology described in the above embodiments, and the method includes: after detecting a vehicle start command, supplying power to the load through the vehicle power supply topology.

[0022] Thirdly, this application also provides a vehicle power supply device, which includes the vehicle power supply topology described in the above embodiments. The device includes a detection unit, which, after detecting a vehicle start command, supplies power to the load through the vehicle power supply topology.

[0023] Fourthly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the methods of the various embodiments.

[0024] Fifthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the methods of the various embodiments.

[0025] Sixthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the methods of the various embodiments.

[0026] The aforementioned vehicle power supply topology, vehicle power supply method, computer equipment, readable storage medium, and program product divide the vehicle power supply topology into at least two sub-topologies. Each sub-topology includes a battery circuit and at least two power supply circuits. The positive terminal of the battery circuit is connected to one end of each power supply circuit, and the other end of each power supply circuit is connected to one end of a load that matches the power supply circuit. The other end of the load is connected to the negative terminal of the battery circuit. The current output from the positive terminal of the battery circuit flows into the load after being processed by the power supply circuit and supplies power to the load, thus meeting the vehicle's power distribution needs. Furthermore, by designing a battery circuit and at least two power supply circuits in each of the at least two sub-topologies, rather than concentrating all circuits in one topology, the vehicle's power supply function is not affected, maintenance costs are reduced, and the versatility of the power supply topology is improved. Attached Figure Description

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of the vehicle power supply topology in one embodiment;

[0029] Figure 2 This is a schematic diagram of the overall structure of the first sub-power supply topology in one embodiment;

[0030] Figure 3 This is a schematic diagram of the overall structure of the second sub-power supply topology in one embodiment;

[0031] Figure 4 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] The vehicle power supply topology of this application includes at least two sub-topologies; each sub-topology includes a battery circuit and at least two power supply circuits; the positive terminal of the battery circuit is connected to one end of each power supply circuit, the other end of each power supply circuit is connected to one end of a load that matches the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit; the current output from the positive terminal of the battery circuit flows into the load after being processed by the power supply circuit and supplies power to the load.

[0034] In this embodiment, at least two sub-topologies include a first sub-topology and a second sub-topology. The first sub-topology includes a battery circuit and at least two power supply circuits, and the second sub-topology also includes a battery circuit and at least two power supply circuits.

[0035] Each power supply circuit has a matching load, and the matching loads of each power supply circuit can be different. The power supply circuit is used to supply power to the matching load.

[0036] In this embodiment, the vehicle power supply topology is divided into at least two sub-topologies, each including a battery circuit and at least two power supply circuits. The positive terminal of the battery circuit is connected to one end of each power supply circuit, and the other end of each power supply circuit is connected to one end of a load matching the power supply circuit. The other end of the load is connected to the negative terminal of the battery circuit. The current output from the positive terminal of the battery circuit flows into the load after being processed by the power supply circuit and supplies power to the load, which can meet the power distribution needs of the vehicle. At the same time, by designing a battery circuit and at least two power supply circuits in each of the at least two sub-topologies, instead of concentrating all circuits in one topology, the power supply function of the vehicle is not affected, maintenance costs are reduced, and the versatility of the power supply topology is improved.

[0037] The power supply circuit can be a primary power supply circuit, a secondary power supply circuit, or a backup power supply circuit. Regardless of the type of power supply circuit, its structure is as follows:

[0038] In one embodiment, each power supply circuit includes a relay element, a resistor, and a fuse element; one end of the relay element is connected to the positive terminal of the battery circuit, the other end of the relay element is connected to one end of the resistor, the other end of the resistor is connected to one end of the fuse element, the other end of the fuse element is connected to one end of a load that matches the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit; the relay element is used to control the on or off state of the power supply circuit; the resistor is used to change the electrical parameters of the power supply circuit; the fuse element is used to blow and disconnect the connection with the load when the electrical parameters of the fuse element are greater than a preset electrical parameter threshold; the current output from the positive terminal of the battery circuit flows into the fuse after passing through the relay element and / or the resistor, and the current output from the fuse flows into the load and supplies power to the load.

[0039] A resistor is used to change the voltage in a power supply circuit; that is, the voltage input to the resistor will be different from the voltage output after passing through the resistor.

[0040] The statement that the electrical parameters of a fuse element are greater than the preset electrical parameter threshold specifically refers to the statement that the voltage of the fuse element is greater than the preset voltage threshold.

[0041] The relay element includes at least two components, specifically at least two switching elements. By controlling the conduction or opening of each switching element, the current output from the positive terminal of the battery circuit flows into the fuse after passing through a switching element and a resistor in sequence, or it flows into the fuse after passing through another switching element.

[0042] The rated or peak power of the load and the vehicle's voltage platform allow for the calculation and selection of appropriate high-voltage electrical components, such as switches, fuses, and resistors, as shown in the diagram. Each circuit is equipped with these three types of components, providing the circuit-level prerequisites for the safe operation of all loads in the vehicle. Simultaneously, this structure of the power supply circuit ensures the safety of power supply and disconnection.

[0043] In one embodiment, at least two power supply circuits include at least one of a primary power supply circuit, a secondary power supply circuit, or a backup power supply circuit; the load matched with the primary power supply circuit is a motor load; the load matched with the secondary power supply circuit is a load other than a motor load; and the load matched with the backup power supply circuit is an external load of the vehicle.

[0044] In this embodiment, other loads can be any load in the vehicle that requires power, other than the motor load, or external loads that are not part of the vehicle's interior. Loads matched with the backup power supply circuit are all external loads that are not part of the vehicle's interior.

[0045] The vehicle power supply topology includes a first sub-topology and a second topology. The two sub-topologies can be implemented either in a single controller or separately (e.g., Figure 1 However, due to space constraints in the vehicle and assembly considerations, they are usually implemented separately and can be placed near their respective loads.

[0046] In this high-voltage topology representation, all circuit functions are divided into two sub-topologies, which is a distributed representation. At the vehicle level, these two parts are placed in different controller / distribution box structures to complete the specific implementation of the topology functions, in order to achieve the goal of flexible layout and universal configuration.

[0047] The first subtopology includes a main power supply circuit, a secondary power supply circuit, and a battery circuit, which are connected in parallel. The second subtopology includes a main power supply circuit, a secondary power supply circuit, a backup power supply circuit, and a battery circuit, which are connected in parallel.

[0048] In summary, this application separates the active power supply circuit into two sub-topologies, classifies and controls secondary power supply circuits with different functions, and sets up two sub-topologies in each of the two controllers. This improves the operational stability of new energy commercial vehicles, increases layout flexibility, and reduces overall vehicle costs. The specific results of these two sub-topologies are explained below:

[0049] Reference Figure 2 The first sub-topology is located in the all-in-one controller 1. The specific structure of the first sub-topology is described below:

[0050] In the diagram, area 1 corresponds to battery circuit 1, area 2 corresponds to secondary power supply circuit, area 3 corresponds to secondary power supply circuit, and area 4 corresponds to primary power supply circuit.

[0051] The battery circuit is the power source for the entire vehicle, providing voltage to all loads, including battery 1, insulation detector, Hall sensor, and heating film. The battery's rated value is X1kW, and its peak value is X2kW, where X1 and X2 are both greater than 0. The battery is connected to the Hall sensor, and the insulation detector is connected in parallel to both ends of the battery (the two ends are the positive and negative terminals, respectively). The positive terminal of the battery is also connected to switch K1, which is connected to fuse F1. Fuse F1 is connected to one end of the heating film, and the other end of the heating film is connected to the negative terminal of battery 1 through switch K17.

[0052] The heating film can be optionally configured to heat the battery or provide warm air to the vehicle, and is equipped with insulation detection to monitor the insulation status of the entire vehicle and report it to the battery management system (BMS).

[0053] An insulation detection function is set up in the battery circuit to determine the insulation problems of the vehicle's high-voltage system.

[0054] The specific structure of the secondary power supply circuit corresponding to Region 2 is as follows:

[0055] In one embodiment, at least two sub-topologies include a first sub-topology, and the secondary power supply loop of the first sub-topology further includes a first voltage controller that converts DC voltage to AC voltage.

[0056] The relay elements of the secondary power supply circuit of the first sub-topology include a third element and a fourth element. One end of the third element and the fourth element are both connected to the positive port of the battery circuit. The other end of the third element is connected to one end of the second resistor in the circuit. The other end of the fourth element is connected to the other end of the second resistor. The other ends of the second resistor and the fourth element are both connected to one end of the second fuse element in the circuit. The other end of the second fuse element is connected to the first terminal of the first voltage controller. The second terminal of the first voltage controller is connected to the oil pump. The third terminal of the first voltage controller is connected to the negative port of the battery circuit. The other ends of the second resistor and the fourth element are also connected to one end of the third fuse element in the circuit. The other end of the third fuse element is connected to one end of the first load. The other end of the first load is connected to the negative port of the battery circuit.

[0057] In this embodiment, the circuit refers to the secondary power supply circuit. The third element is K2 in the figure, the fourth element is K3 in the figure, the second resistor is R1 in the figure, the second fuse element is F2 in the figure, the first voltage controller is the DCAC (direct current to direct current converter) controller in the figure, the third fuse element is F3 in the figure, and the first load is load 1 in the figure; the first load can be an air conditioner compressor.

[0058] Secondary power supply circuits can supply power to AC loads, such as steering pumps and brake pumps, through a DC / AC controller.

[0059] The specific structure of the secondary power supply circuit corresponding to Region 3 is as follows:

[0060] It includes relay element K4, relay element K5, resistor R2, fuse element F4, fuse element F5, load 2 and load 3, and the power rating and power peak value of each load can be set;

[0061] One end of relay element K4 and relay element K5 are both connected to the positive terminal of the battery circuit. The other end of relay element K5 is connected to one end of resistor R2. The other end of relay element K4 is connected to the other end of resistor R2. The other ends of resistor R2 and relay element K4 are both connected to one end of fuse element F5 in the secondary power supply circuit. The other end of fuse element F5 is connected to one end of load 3. The other end of load 3 is connected to the negative terminal of the battery circuit.

[0062] The other end of resistor R2 and the other end of relay element K4 are also connected to one end of fuse element F4 in the secondary power supply circuit. The other end of fuse element F4 is connected to one end of load 2, and the other end of load 2 is connected to the negative terminal of the secondary power supply circuit.

[0063] Load 2 and load 3 can be vehicle thermal management loads such as fans and water pumps, respectively.

[0064] In this embodiment, the secondary power supply circuit can supply power to the thermal management function;

[0065] In this embodiment, the secondary power supply circuits corresponding to region 2 and region 3 are set up separately to ensure that their operation does not interfere with each other. If space permits, they can also be divided into 4 circuits. Separating the two secondary power supply circuits, that is, separating circuits with similar functions, can effectively reduce the occurrence of overall circuit failure caused by a single load problem.

[0066] The structure of the main power supply circuit corresponding to Region 4 is as follows:

[0067] In one embodiment, the relay element in the main power supply circuit includes a first element and a second element. One end of both the first element and the second element is connected to the positive port of the battery circuit. The other end of the first element is connected to one end of a first resistor in the main power supply circuit. The other end of the second element is connected to the other end of the first resistor. The other ends of the first resistor and the second element are both connected to one end of a first fuse element in the main power supply circuit. The other end of the first fuse element is connected to one end of a motor load that matches the main power supply circuit. The other end of the motor load is connected to the negative port of the battery circuit.

[0068] Switching element K6, switching element K7, resistor R3, fuse element F6, and microcontroller unit (MCU) specifically MCU1;

[0069] One end of each of the switching elements K6 and K7 is connected to the positive terminal of the battery circuit. The other end of the switching element K6 is connected to one end of the resistor R3 in the main power supply circuit. The other end of the switching element K7 is connected to the other end of the resistor R3. The other ends of the resistor R3 and the other ends of the switching element K7 are both connected to one end of the fuse element F6 in the main power supply circuit. The other end of the fuse element F6 is connected to one end of the MCU1 (or the motor load). The other end of the MCU1 (or the motor load) is connected to the negative terminal of the battery circuit.

[0070] The power rating and peak power of MCU1 (or the motor load) can be set.

[0071] The main power supply circuit corresponding to Zone 4 is for the drive motor. Since the specifications of various electrical components differ, the circuits cannot be arbitrarily interchanged.

[0072] Reference Figure 3 The second sub-topology is located in the all-in-one controller 2. The specific structure of the second sub-topology is described below:

[0073] In the diagram, area 5 corresponds to the main power supply circuit, area 6 corresponds to the secondary power supply circuit, area 7 corresponds to the backup power supply circuit, and area 8 corresponds to the battery circuit.

[0074] The specific structure of the main power supply circuit corresponding to Region 5 is as follows:

[0075] In one embodiment, the relay element in the main power supply circuit includes a first element and a second element. One end of both the first element and the second element is connected to the positive port of the battery circuit. The other end of the first element is connected to one end of a first resistor in the main power supply circuit. The other end of the second element is connected to the other end of the first resistor. The other ends of the first resistor and the second element are both connected to one end of a first fuse element in the main power supply circuit. The other end of the first fuse element is connected to one end of a motor load that matches the main power supply circuit. The other end of the motor load is connected to the negative port of the battery circuit.

[0076] In this embodiment, the main power supply circuit includes relay element K8, relay element K9, relay element K10, relay element K11, resistor R4, resistor R5, fuse element F7, fuse element F8, MCU2 and MCU3;

[0077] One end of relay element K8 and relay element K9 are both connected to the positive terminal of the battery circuit. The other end of relay element K8 is connected to one end of resistor R4, and the other end of relay element K9 is connected to the other end of resistor R4. The other ends of resistor R4 and relay element K9 are both connected to one end of fuse element F7 in the circuit. The other end of fuse element F7 is connected to one end of MCU2, and the other end of MCU2 is connected to the negative terminal of the battery circuit.

[0078] One end of relay element K10 and relay element K11 are both connected to the positive terminal of the battery circuit. The other end of relay element K10 is connected to one end of resistor R5, and the other end of relay element K11 is connected to the other end of resistor R5. The other ends of resistor R5 and relay element K11 are both connected to one end of fuse element F8 in the circuit. The other end of fuse element F8 is connected to one end of MCU3, and the other end of MCU3 is connected to the negative terminal of the battery circuit.

[0079] In this embodiment, two main power supply circuits are designed independently and arranged separately, which can control two drive motors separately. By separating circuits with similar functions, the problem of overall power failure caused by the failure of a single main power supply circuit is reduced.

[0080] The specific usage of the main power supply circuits corresponding to Zone 4 and Zone 5 depends on the number and arrangement of the motors in the actual vehicle, and they may not be used in their entirety.

[0081] The specific structure of the secondary power supply circuit corresponding to Region 6 is as follows:

[0082] In one embodiment, at least two sub-topologies include a second sub-topology, and the secondary power supply circuit of the second sub-topology further includes a second voltage controller for reducing the voltage value; the relay element of the secondary power supply circuit of the second sub-topology includes a fifth element and a sixth element, one end of the fifth element and the sixth element are both connected to the positive port of the battery circuit, the other end of the fifth element is connected to one end of a third resistor in the circuit, the other end of the sixth element is connected to the other end of the third resistor, the other end of the third resistor and the other end of the sixth element are both connected to one end of a fourth fuse in the circuit, the other end of the fourth fuse is connected to the second voltage controller, the second voltage controller is connected to one end of the battery, and the other end of the battery is connected to the negative port of the battery circuit; the other end of the third resistor and the other end of the sixth element are both connected to one end of the fifth fuse in the circuit, the other end of the fifth fuse is connected to one end of a second load, and the other end of the second load is connected to the negative port of the battery circuit.

[0083] In this embodiment, the circuit refers to the secondary power supply circuit. The fifth component is K12 in the figure, the sixth component is K13 in the figure, the third resistor is R6 in the figure, the fourth fuse component is F10 in the figure, the second voltage controller is the DC to DC (DC converter) controller in the figure, the fifth fuse component is F9 in the figure, and the second load is load 4 in the figure; the second load can be a fan or a water pump.

[0084] The secondary power supply circuits corresponding to Area 2 and Area 6 are designed to be on different sub-topologies to ensure that the DC / AC controller and the DC / DC controller do not stop working at the same time.

[0085] The specific structure of the backup power supply circuit corresponding to Zone 7 is as follows:

[0086] It includes relay element K14, relay element K15, resistor R7, fuse element F11 and load 5, the power rating and power peak value of the load can be set;

[0087] One end of relay element K14 and relay element K15 are both connected to the positive terminal of the battery circuit. The other end of relay element K15 is connected to one end of resistor R7. The other end of relay element K15 and the other end of resistor R7 are both connected to one end of fuse element F11 in the backup power supply circuit. The other end of fuse element F11 is connected to one end of load 5. The other end of load 5 is connected to the negative terminal of the battery circuit.

[0088] The backup power supply circuit can carry special function loads, such as the sweeping of sanitation commercial vehicles and the mixing function of cement mixers.

[0089] The structure of the battery circuit corresponding to region 8 is as follows:

[0090] The battery circuit is the power source for the entire vehicle, providing voltage to all loads, including the battery, insulation detector, and Hall sensor. The battery's rated value is X3kW, and its peak value is X4kW, where X3 and X4 are both greater than 0. The battery is connected to the Hall sensor, and the insulation detector is connected in parallel to both ends of the battery (the two ends are the positive and negative terminals, respectively). The negative terminal is connected to load 5 through switch K16.

[0091] An insulation detection function is set up in the battery circuit to determine the insulation problems of the vehicle's high-voltage system.

[0092] The battery circuit can be equipped with a power battery, supporting a two-way parallel battery configuration.

[0093] The distribution box or controller that carries the functions of the two sub-topologies is connected by a wiring harness through the power distribution interface. The specific connection method can be determined by taking into account the assembly environment.

[0094] This application also provides a vehicle power supply method, wherein the vehicle includes the vehicle power supply topology in the above embodiments, and the method includes: after detecting a vehicle start command, supplying power to the load through the vehicle power supply topology in the above embodiments.

[0095] In summary, this application has the following effects:

[0096] 1. Fully functional. Includes DC / AC controller, DC / DC controller, power input, various types of load distribution interfaces, insulation detection, and backup power supply circuit, meeting the functional requirements of various vehicles and improving versatility.

[0097] 2. The first sub-topology includes two separately designed secondary power supply circuits. Circuits with similar functions are arranged separately for precise control and to reduce the possibility of failure. Similarly, the second sub-topology's main power supply circuits specifically refer to two separately designed main power supply circuits. Circuits with similar functions are arranged separately, which also enables precise control and reduces the possibility of failure.

[0098] 3. At least two sub-topologies are carried by corresponding distribution boxes or controllers. The topology can be carried by multiple different power distribution assemblies, improving the flexibility of assembly layout.

[0099] 4. The DC / DC controller and the DC / AC controller are arranged in two sub-topologies respectively to ensure that the product structures are similar and the functions are independent.

[0100] 5. Multiple main power supply circuits are arranged in different sub-topologies to achieve separate control of different drive motors and balanced distribution.

[0101] 6. The vehicle power supply topology has three independent main drive circuits. This design can accommodate multi-motor drive models.

[0102] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0103] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 4As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a vehicle power supply method. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0104] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0105] In one exemplary embodiment, a computer device is provided, including a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps in the methods of various embodiments.

[0106] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps in the methods of various embodiments.

[0107] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, represents the steps in the methods of various embodiments.

[0108] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0110] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A vehicle power supply topology, characterized in that, include: At least two sub-topologies; each sub-topology includes a battery circuit and at least two power supply circuits; The positive terminal of the battery circuit is connected to one end of each power supply circuit, the other end of each power supply circuit is connected to one end of a load that matches the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit. The current output from the positive terminal of the battery circuit flows into the load after being processed by the power supply circuit, and supplies power to the load. At least two power supply circuits include at least one of a primary power supply circuit, a secondary power supply circuit, or a backup power supply circuit; The load matched with the main power supply circuit is the motor load; the load matched with the secondary power supply circuit is any load other than the motor load; the load matched with the backup power supply circuit is the vehicle's external load. At least two sub-topologies include a first sub-topology, and the secondary power supply loop of the first sub-topology also includes a first voltage controller that converts DC voltage to AC voltage; The relay element of the secondary power supply circuit of the first sub-topology includes a third element and a fourth element. One end of the third element and the fourth element are both connected to the positive port of the battery circuit. The other end of the third element is connected to one end of the second resistor in the circuit. The other end of the fourth element is connected to the other end of the second resistor. The other ends of the second resistor and the fourth element are both connected to one end of the second fuse element in the circuit. The other end of the second fuse element is connected to the first end of the first voltage controller. The second end of the first voltage controller is connected to the oil pump. The third end of the first voltage controller is connected to the negative port of the battery circuit. The other end of the second resistor and the other end of the fourth element are also connected to one end of the third fuse element in the circuit. The other end of the third fuse element is connected to one end of the first load, and the other end of the first load is connected to the negative terminal of the battery circuit. At least two sub-topologies include a second sub-topology, and the secondary power supply loop of the second sub-topology also includes a second voltage controller for reducing the voltage value; The relay elements of the secondary power supply circuit of the second sub-topology include a fifth element and a sixth element. One end of the fifth element and the sixth element are both connected to the positive port of the battery circuit. The other end of the fifth element is connected to one end of the third resistor in the circuit. The other end of the sixth element is connected to the other end of the third resistor. The other ends of the third resistor and the sixth element are both connected to one end of the fourth fuse in the circuit. The other end of the fourth fuse is connected to the second voltage controller. The second voltage controller is connected to one end of the battery. The other end of the battery is connected to the negative port of the battery circuit. The other end of the third resistor and the other end of the sixth element are both connected to one end of the fifth fuse in the circuit. The other end of the fifth fuse is connected to one end of the second load, and the other end of the second load is connected to the negative terminal of the battery circuit.

2. The vehicle power supply topology according to claim 1, characterized in that, Each power supply circuit includes a relay element, a resistor, and a fuse element; one end of the relay element is connected to the positive terminal of the battery circuit, the other end of the relay element is connected to one end of the resistor, the other end of the resistor is connected to one end of the fuse element, the other end of the fuse element is connected to one end of a load that matches the power supply circuit, and the other end of the load is connected to the negative terminal of the battery circuit. The relay element is used to control the on or off of the power supply circuit; the resistor is used to change the electrical parameters of the power supply circuit; the fuse element is used to disconnect the connection with the load after melting when the electrical parameters of the fuse element are greater than a preset electrical parameter threshold. The current output from the positive port of the battery circuit flows into the fuse after passing through the relay element and / or the resistor. The current output from the fuse flows into the load and supplies power to the load.

3. The vehicle power supply topology according to claim 1, characterized in that, The relay element in the main power supply circuit includes a first element and a second element. One end of the first element and the second element are both connected to the positive port of the battery circuit. The other end of the first element is connected to one end of a first resistor in the main power supply circuit. The other end of the second element is connected to the other end of the first resistor. The other ends of the first resistor and the second element are both connected to one end of a first fuse element in the main power supply circuit. The other end of the first fuse element is connected to one end of a motor load that matches the main power supply circuit. The other end of the motor load is connected to the negative port of the battery circuit.

4. A method for supplying power to a vehicle, characterized in that, The vehicle includes a vehicle power supply topology as described in any one of claims 1 to 3, and the method includes: after detecting a vehicle start command, supplying power to the load through the vehicle power supply topology.

5. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method of claim 4.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method of claim 4.

7. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the method of claim 4.

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