Data processing methods, devices, storage media, processors, and vehicles

Abstract

The application discloses a data processing method and device, a storage medium, a processor and a vehicle. The method comprises the following steps: acquiring state data of a single-phase input end of a sampling circuit at a current time, wherein the sampling circuit is arranged in the vehicle, and the state data is used for representing an access state of the single-phase input end in accessing the sampling circuit at the current time; determining a switching state of the sampling circuit based on the state data; and adjusting a current conduction state of the sampling circuit at the current time based on the switching state. The application solves the technical problem of poor thermal balance in the single-phase mode.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more specifically, to a data processing method, apparatus, storage medium, processor, and vehicle. Background Technology

[0002] Currently, power factor correction devices with single-phase and three-phase mode compatibility in related technologies can adopt methods such as three sets of single-phase power factor correction modules in parallel, four sets of bridge arms to build a bridge rectifier circuit, four sets of rectifier bridges and four sets of switching transistors to be compatible with single-phase functions. However, they still have the technical problem of poor thermal balance in single-phase mode.

[0003] There is currently no effective solution to the technical problem of poor thermal equilibrium in single-phase mode in the aforementioned related technologies. Summary of the Invention

[0004] This invention provides a data processing method, apparatus, storage medium, processor, and vehicle to at least solve the technical problem of poor thermal equilibrium performance in single-phase mode.

[0005] According to one aspect of the present invention, a data processing method is provided. The method may include: acquiring state data of a single-phase input terminal of a sampling circuit at a current moment, wherein the sampling circuit is deployed in a vehicle, and the state data is used to characterize the access state of the single-phase input terminal to the sampling circuit at the current moment; determining the switching state of the sampling circuit based on the state data; and adjusting the current conduction state of the sampling circuit at the current moment based on the switching state.

[0006] Optionally, determining the switching state of the sampling circuit based on the state data includes: determining the phase difference of the sampling circuit based on the state data; and determining the switching state of the sampling circuit based on the phase difference.

[0007] Optionally, determining the phase difference of the sampling circuit based on state data includes: determining the phase difference in response to the positive half-cycle waveform of a single-phase input terminal connected to the sampling circuit; or, determining the phase difference in response to the negative half-cycle waveform of a single-phase input terminal connected to the sampling circuit.

[0008] Optionally, determining the switching state of the sampling circuit based on the phase difference includes: determining that the switching state of the relay in the sampling circuit is closed based on the phase difference; and determining that the switching state of the bridge arm switch in the sampling circuit is closed based on the closed state.

[0009] Optionally, in response to the positive half-cycle waveform of the single-phase input terminal connected to the sampling circuit, the first bridge arm switch of the sampling circuit is turned on, and the second bridge arm switch of the sampling circuit is turned off; in response to the negative half-cycle waveform of the single-phase input terminal connected to the sampling circuit, the first bridge arm switch of the sampling circuit is turned off, and the second bridge arm switch of the sampling circuit is turned on.

[0010] Optionally, adjusting the current conduction state of the sampling circuit at the current moment based on the switch state includes: determining the first current conduction state of the sampling circuit at the current moment in response to the first bridge arm switch being turned on and the second bridge arm switch being turned on; and determining the second current conduction state of the sampling circuit at the current moment in response to the first bridge arm switch being turned on and the second bridge arm switch being turned on.

[0011] According to another aspect of the present invention, a data processing apparatus is also provided. The apparatus may include: an acquisition unit, configured to acquire state data of a single-phase input terminal of a sampling circuit at a current moment, wherein the sampling circuit is deployed in a vehicle, and the state data characterizes the access state of the single-phase input terminal to the sampling circuit at the current moment; a determination unit, configured to determine the switching state of the sampling circuit based on the state data; and an adjustment unit, configured to adjust the current conduction state of the sampling circuit at the current moment based on the switching state.

[0012] According to another aspect of the present invention, a computer-readable storage medium is also provided. The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to perform the data processing method of the present invention.

[0013] According to another aspect of the present invention, a processor is also provided. The processor is used to run a program, wherein the program executes the data processing method of the embodiments of the present invention during runtime.

[0014] According to another aspect of the present invention, a vehicle is also provided. This vehicle is used to execute the data processing method of the embodiments of the present invention.

[0015] In this embodiment of the invention, the state data of a single-phase input terminal of a sampling circuit at the current moment is acquired. The sampling circuit is deployed in the vehicle, and the state data characterizes the connection state of the single-phase input terminal to the sampling circuit at the current moment. Based on the state data, the switching state of the sampling circuit is determined. Based on the switching state, the current conduction state of the sampling circuit at the current moment is adjusted. In other words, this embodiment of the invention, by acquiring the connection state of the single-phase input terminal in the sampling circuit, determines the open or closed state of the switch in the sampling circuit, and adjusts the current conduction based on the different states of the switch in the sampling circuit, thereby achieving a technical improvement in thermal balance under single-phase mode and solving the technical problem of poor thermal balance under single-phase mode. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a flowchart of a data processing method according to an embodiment of the present invention;

[0018] Figure 2 This is a structural diagram of a single-phase and three-phase compatible sampling circuit based on a power factor correction device according to an embodiment of the present invention;

[0019] Figure 3 This is a current conduction state diagram of a single-phase input terminal connected to a positive half-cycle waveform according to an embodiment of the present invention;

[0020] Figure 4 This is another state diagram of current conduction when a single-phase input terminal is connected to a positive half-cycle waveform according to an embodiment of the present invention;

[0021] Figure 5 This is a current conduction state diagram of a single-phase input terminal connected to a negative half-cycle waveform according to an embodiment of the present invention;

[0022] Figure 6 This is another state diagram of current conduction when a single-phase input terminal is connected to the negative half-cycle waveform according to an embodiment of the present invention;

[0023] Figure 7 This is a three-phase mode structure diagram of a sampling circuit with three-phase input terminals according to an embodiment of the present invention;

[0024] Figure 8 This is a single-phase mode structure diagram of a single-phase input terminal connected to a sampling circuit according to an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of a data processing apparatus according to an embodiment of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] Example 1

[0029] According to an embodiment of the present invention, an embodiment of a data processing method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0030] Figure 1 This is a flowchart of a data processing method according to an embodiment of the present invention, such as... Figure 1 As shown, the method may include the following steps.

[0031] Step S102: Obtain the status data of the single-phase input terminal of the sampling circuit at the current moment. The sampling circuit is deployed in the vehicle, and the status data is used to characterize the access status of the single-phase input terminal to the sampling circuit at the current moment.

[0032] In the technical solution provided in step S102 of the present invention, the status data of a single-phase input terminal of the sampling circuit at the current moment can be obtained by a power factor correction (PFC) device. The sampling circuit is deployed in the vehicle, and the status data can be used to characterize the access status of the single-phase input terminal to the sampling circuit at the current moment. It can be that the single-phase input terminal is connected to the sampling circuit or that the single-phase input terminal is not connected to the sampling circuit. The sampling circuit can be a three-phase input voltage circuit.

[0033] Optionally, the power factor correction device can be used to be compatible with both single-phase and three-phase input modes. The power factor correction device may include a power inductor, a conduction relay, a switching transistor, a short-circuit relay, an output capacitor, etc., wherein the switching transistor may be a bridge arm switching transistor.

[0034] Optionally, Figure 2This is a structural diagram of a single-phase and three-phase compatible sampling circuit based on a power factor correction device according to an embodiment of the present invention, as shown below. Figure 2 As shown, the circuit structure diagram may include each phase input terminal, conduction relay, short-circuit relay, power inductor, bridge arm switch, output capacitor, and resistor, etc. Among them, phase A may correspond to power inductor 25, conduction relay 21, bridge arm switch 29, and bridge arm switch 210; phase B may correspond to power inductor 26, conduction relay 22, bridge arm switch 211, and bridge arm switch 212; phase C may correspond to power inductor 27, conduction relay 23, bridge arm switch 213, and bridge arm switch 214; a short-circuit relay 24 may be used between phase A and phase B; and a short-circuit relay 28 may be used between phase C and the ground terminal.

[0035] Step S104: Determine the switching state of the sampling circuit based on the state data.

[0036] In the technical solution provided by step S104 of the present invention, the switching state in the sampling circuit can be determined based on the access state of the single-phase input terminal to the sampling circuit at the current moment. The switches in the sampling circuit may include relay switches and bridge arm switch transistors.

[0037] Step S106: Adjust the current conduction state of the sampling circuit at the current moment based on the switch state.

[0038] In the technical solution of step S106 of the present invention, the current conduction state of the sampling circuit at the current moment can be adjusted based on the switching state of the sampling circuit, wherein the current conduction state can be used to characterize the current flow direction.

[0039] In steps S102 to S106 of this application, the status data of the single-phase input terminal of the sampling circuit at the current moment is obtained. The sampling circuit is deployed in the vehicle, and the status data characterizes the connection status of the single-phase input terminal to the sampling circuit at the current moment. Based on the status data, the switching state of the sampling circuit is determined; and the current conduction state of the sampling circuit at the current moment is adjusted based on the switching state. In other words, this embodiment of the invention obtains the connection status of the single-phase input terminal in the sampling circuit, determines the open or closed state of the switch in the sampling circuit, and adjusts the current conduction based on the different states of the switch in the sampling circuit, thereby achieving a technical effect of improving thermal balance in single-phase mode and solving the technical problem of poor thermal balance in single-phase mode.

[0040] The method described in this embodiment will be further described below.

[0041] As an optional embodiment, step S104, determining the switching state of the sampling circuit based on the state data, includes: determining the phase difference of the sampling circuit based on the state data; and determining the switching state of the sampling circuit based on the phase difference.

[0042] In this embodiment of the invention, the phase difference of the sampling circuit can be obtained based on the access state of the single-phase input terminal to the sampling circuit at the current moment. After determining the phase difference of the sampling circuit, the switching state of the sampling circuit can be determined based on the phase difference.

[0043] Optionally, the phase difference of the sampling circuit can be determined by a power factor correction device based on the state of a single-phase input terminal being connected to the sampling circuit at the current moment, or based on the state of all three-phase input terminals being connected to the sampling circuit and the ground terminal being either floating or not connected to the sampling circuit.

[0044] Optionally, the switching state of the sampling circuit can be determined by acquiring the sampled signal in the sampling circuit and the phase difference between each phase.

[0045] As an optional embodiment, determining the phase difference of the sampling circuit based on state data includes: determining the phase difference in response to the positive half-cycle waveform of a single-phase input terminal connected to the sampling circuit; or, determining the phase difference in response to the negative half-cycle waveform of a single-phase input terminal connected to the sampling circuit.

[0046] In this embodiment of the invention, when a single-phase input terminal is connected to the positive half-cycle waveform of the sampling circuit, the phase difference of the sampling circuit can be determined; or when a single-phase input terminal is connected to the negative half-cycle waveform of the sampling circuit, the phase difference of the sampling circuit can be determined. The single-phase input terminal can be connected to one half-cycle of the positive or negative half-cycle waveform of the sampling circuit.

[0047] As an optional embodiment, determining the switching state of the sampling circuit based on the phase difference includes: determining that the switching state of the relay in the sampling circuit is closed based on the phase difference; and determining that the switching state of the bridge arm switch in the sampling circuit is closed based on the closed state.

[0048] In this embodiment of the invention, the switching state of the relay in the sampling circuit can be determined to be closed based on the phase difference of the sampling circuit, and the switching state of the bridge arm switch of the sampling circuit can be further determined to be closed based on the closed state of the relay. The relay may include a conducting relay and a short-circuit relay.

[0049] Optionally, when the single-phase input terminal is connected to the sampling circuit at the current moment, and the zero-crossing phases of the sampling signals in the sampling circuit are all in phase, and the voltage peak value meets the power-on requirements, the switch of the conducting relay corresponding to the single-phase input terminal and the short-circuit relay in the sampling circuit can be closed.

[0050] Optionally, after closing the switch of the conducting relay corresponding to the single-phase input terminal and the short-circuit relay in the sampling circuit, the power factor correction device can operate in single-phase mode.

[0051] Optionally, when all three input terminals are connected to the sampling circuit and the ground terminal is left floating or not connected to the sampling circuit, the phase difference of the zero-crossing points of the sampling signals in the sampling circuit is 120°, and the voltage peak value meets the power-on requirements, the corresponding conduction relay switches of each of the three input terminals can be closed.

[0052] Optionally, after closing the corresponding on relay switches at each of the three-phase input terminals, the power factor correction device can operate in the mode of a three-phase bridge rectifier circuit.

[0053] For example, such as Figure 2 As shown, when phase A is connected to the sampling circuit, the phases of the zero-crossing points of the sampling signals are all in phase, and the voltage peak value meets the power-on requirements, the conducting relay 21, short-circuit relay 24, and short-circuit relay 28 can be closed; when phases A, B, and C are all connected and the grounding terminal is floating or not connected to the sampling circuit, the phase difference of the zero-crossing points of the sampling signals is 120°, and the voltage peak value meets the power-on requirements, the conducting relay 21, conducting relay 22, and conducting relay 23 can be closed.

[0054] As an optional embodiment, in response to the positive half-cycle waveform of the single-phase input terminal connected to the sampling circuit, the first bridge arm switch of the sampling circuit is turned on, and the second bridge arm switch of the sampling circuit is turned off; in response to the negative half-cycle waveform of the single-phase input terminal connected to the sampling circuit, the first bridge arm switch of the sampling circuit is turned off, and the second bridge arm switch of the sampling circuit is turned on.

[0055] In this embodiment of the invention, based on the access state of the single-phase input terminal connected to the sampling circuit, when the single-phase input terminal is connected to the positive half-cycle waveform of the sampling circuit, the first bridge arm switch of the sampling circuit is turned on and the second bridge arm switch of the sampling circuit is turned off; when the single-phase input terminal is connected to the negative half-cycle waveform of the sampling circuit, the first bridge arm switch of the sampling circuit is turned on and the second bridge arm switch of the sampling circuit is turned on.

[0056] Optionally, such as Figure 2 As shown, when phase A is connected to the positive half-cycle waveform of the sampling circuit, bridge arm switch 213 can be turned on and bridge arm switch 214 can be turned off; when phase A is connected to the negative half-cycle waveform of the sampling circuit, bridge arm switch 213 can be turned off and bridge arm switch 214 can be turned on.

[0057] As an optional embodiment, adjusting the current conduction state of the sampling circuit at the current moment based on the switch state includes: determining a first current conduction state of the sampling circuit at the current moment in response to the first bridge arm switch being turned on and the second bridge arm switch being turned on; and determining a second current conduction state of the sampling circuit at the current moment in response to the first bridge arm switch being turned on and the second bridge arm switch being turned on.

[0058] In this embodiment of the invention, the current conduction state of the sampling circuit at the current moment can be adjusted based on the switching state in the sampling circuit. When the first bridge arm switch in the sampling circuit is turned on and the second bridge arm switch is turned off, the current conduction state in the sampling circuit is determined to be the first current conduction state; when the first bridge arm switch in the sampling circuit is turned off and the second bridge arm switch is turned on, the current conduction state in the sampling circuit is determined to be the second current conduction state.

[0059] For example, such as Figure 2 As shown, when bridge arm switch 213 is turned on and bridge arm switch 214 is turned off, the first current conduction state can be bridge arm switch 29 and bridge arm switch 211 conducting, or bridge arm switch 210 and bridge arm switch 212 conducting.

[0060] Optionally, Figure 3 This is a state diagram of current conduction when a single-phase input terminal is connected to the positive half-cycle waveform according to an embodiment of the present invention, such as... Figure 3 As shown, when bridge arm switch 33 and bridge arm switch 35 are turned on, the current of power inductor 31 and power inductor 32 flows through bridge arm switch 33 and bridge arm switch 35, and then returns to the ground terminal through bridge arm switch 38.

[0061] Optionally, Figure 4 This is another state diagram of current conduction when the single-phase input terminal is connected to the positive half-cycle waveform according to an embodiment of the present invention, such as... Figure 4 As shown, when bridge arm switch transistors 44 and 46 are turned on, the current in power inductors 41 and 42 flows through bridge arm switch transistors 44 and 46, and then returns to the ground terminal through bridge arm switch transistor 48.

[0062] For example, such as Figure 2 As shown, when bridge arm switch 213 is closed and bridge arm switch 214 is open, the first current conduction state can be that bridge arm switch 29 and bridge arm switch 211 are conducting, or that bridge arm switch 210 and bridge arm switch 212 are conducting.

[0063] Optionally, Figure 5 This is a state diagram of current conduction when a single-phase input terminal is connected to the negative half-cycle waveform according to an embodiment of the present invention, such as... Figure 5As shown, when bridge arm switch 53 and bridge arm switch 55 are turned on, the grounding current charges the output capacitor 59 and the output capacitor 510 through bridge arm switch 53, bridge arm switch 55 and bridge arm switch 57, and then returns to the grounding terminal through bridge arm switch 58.

[0064] Optionally, Figure 6 This is another state diagram of current conduction when the single-phase input terminal is connected to the negative half-cycle waveform according to an embodiment of the present invention, such as... Figure 6 As shown, when bridge arm switches 64 and 66 are turned on, the current in power inductors 61 and 62 charges output capacitors 69 and 610 through bridge arm switches 64 and 66, and then returns to the ground terminal through bridge arm switch 68.

[0065] In this embodiment of the invention, the output capacitor can filter out the output ripple of the sampling circuit, and the resistor can be connected to or not connected to the sampling circuit as needed. This is only an example and there is no specific limitation on the connection of the resistor.

[0066] Optionally, by adjusting the current conduction state of the sampling circuit at the current moment based on the switching state of the sampling circuit, the power inductor at a single-phase input terminal of the sampling circuit can no longer have switching losses and only bear conduction losses, thereby reducing the pressure caused by power dissipation and temperature rise of the power inductor and reducing the risk of local thermal problems in the single-phase mode of the sampling circuit.

[0067] Alternatively, by connecting the single-phase input terminal to the sampling circuit, the voltage and higher harmonic components of the single-phase input terminal are reduced, thereby reducing the ripple current requirement for the output capacitor and simplifying the design.

[0068] This embodiment obtains the access status of the single-phase input terminal in the sampling circuit, determines the open or closed state of the switch in the sampling circuit, and adjusts the current conduction based on the different states of the switch in the sampling circuit, thereby improving the technical effect of thermal balance in single-phase mode and solving the technical problem of poor thermal balance in single-phase mode.

[0069] Example 2

[0070] The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

[0071] In autonomous driving, the charging demand of vehicles is increasing, requiring the use of three-phase power supply in public places and single-phase power supply in personal home environments. Existing function factor correction devices can be compatible with single and three-phase power supply modes, but there are still technical problems such as complex control, high device cost and uneven power tube loss in single-phase mode.

[0072] In a related technology, a power conversion circuit and a method for controlling a DC-AC circuit are proposed. This method utilizes the characteristic of reducing power device losses when the inverter output load exceeds the rated range, ensuring that the equipment can output stably over a wide load range. However, this method only involves the control of unipolar modulation and does not involve the design of a power factor correction device.

[0073] In another related technology, a single-phase and three-phase compatible power factor correction converter and its control method are proposed. This method connects all three paths A, B and C in parallel and adds a set of diodes with the neutral point connected to the N line on the bus output side, switching the original bridge circuit to a totem pole power factor correction device. However, this method has certain requirements on the performance of the switching transistors and diodes and does not involve the control of unipolar modulation.

[0074] In another related technology, a power factor adjustment architecture and control method suitable for single-phase and three-phase power grids are proposed. This method proposes a relatively complex single-phase and three-phase compatible topology with four bridge arms and a bidirectional switch on one side of the bus capacitor. Depending on the mode, it is connected to the C phase or the positive terminal of the power factor correction bus. In single-phase mode, the topology changes to a buck / boost circuit, which selects to operate in buck or boost mode according to the peak or trough position of the power factor correction ripple voltage. However, this method still has the problem of relatively complex circuit topology.

[0075] To address the aforementioned issues, this invention proposes a data processing method. In this method, two sets of switching transistors in phase L switch complementaryly at a higher switching frequency within one switching cycle, ensuring that the output DC voltage charges the output capacitor. The two power transistors operate at a lower output voltage fundamental frequency. However, it is not fixed that one bridge arm is always at a low frequency (output fundamental frequency) and the other always at a high frequency (carrier frequency). Instead, they switch operation every half output voltage cycle. That is, the same bridge arm operates at a low frequency in the first half of the cycle and at a high frequency in the second half, thereby reducing switching losses and ensuring balanced operation of the power transistors in both bridge arms. When using the same power transistors, this also ensures balanced lifespan and increases the reliability of the power transistors.

[0076] The embodiments of the present invention will be further described below.

[0077] In embodiments of the present invention, such as Figure 2As shown, a structural diagram of a single-phase and three-phase compatible sampling circuit based on a power factor correction device may include: A-phase power inductor 25, A-phase on relay 21, A-phase bridge arm switches 29 and 210, B-phase power inductor 26, B-phase on relay 22, B-phase bridge arm switches 211 and 212, C-phase power inductor 27, C-phase on relay 23, C-phase bridge arm switches 213 and 214, AB-phase short-circuit relay 24, C-phase to ground short-circuit relay 28, output capacitors 215 and 216, and resistor R. The resistor R may or may not be connected to the sampling circuit depending on the situation; this is only an example, and the connection of the resistor is not specifically limited.

[0078] Optionally, Figure 7 This is a three-phase mode structure diagram of a sampling circuit with three-phase input terminals according to an embodiment of the present invention, as shown below. Figure 7 As shown, when all three input terminals A, B, and C are connected to the sampling circuit and the ground terminal is either floating or not connected to the sampling circuit, the power factor correction device judges the phase difference of the sampling circuit of the three-phase input voltage. When the phase difference of the zero-crossing points of the sampling signals in the three-phase voltages is 120° and the voltage peak value meets the start-up requirements, it can close the circuit as shown. Figure 2 The power factor correction device shown in the circuit relays 21, 22 and 23 can operate in the three-phase bridge rectifier current mode.

[0079] Optionally, Figure 8 This is a single-phase mode structure diagram of a sampling circuit with a single-phase input terminal connected according to an embodiment of the present invention, such as... Figure 8 As shown, when only the A-phase input terminal is connected to the sampling circuit, the power factor correction device judges the phase difference of the sampling circuit of the three-phase input voltage. When the zero-crossing phases of the sampling signals in the three-phase voltages are all in phase, and the voltage peak values ​​meet the start-up requirements, it can close the circuit as shown. Figure 2 The power factor correction device, consisting of the on relay 21, short-circuit relay 24, and short-circuit relay 28 shown, can operate in single-phase mode.

[0080] Optionally, such as Figure 2 As shown, when the A-phase input terminal is connected to the positive half-cycle waveform of the sampling circuit, the bridge arm switch 213 can be turned on and the bridge arm switch 214 can be turned off.

[0081] Optionally, in response to opening bridge arm switch 213 and closing bridge arm switch 214, such as Figure 3 As shown, when bridge arm switches 33 and 35 are turned on, the current in power inductors 31 and 32 flows through bridge arm switches 33 and 35, and then returns to the ground terminal through bridge arm switch 38; Figure 4As shown, when bridge arm switch transistors 44 and 46 are turned on, the current in power inductors 41 and 42 flows through bridge arm switch transistors 44 and 46, and then returns to the ground terminal through bridge arm switch transistor 48.

[0082] Optionally, such as Figure 2 As shown, when the input terminal of phase A is connected to the negative half-cycle waveform of the sampling circuit, the bridge arm switch 213 can be closed and the bridge arm switch 214 can be opened.

[0083] Optionally, in response to closing bridge arm switch 213 and opening bridge arm switch 214, such as... Figure 5 As shown, when bridge arm switches 53 and 55 are turned on, the grounding current charges the output capacitors 59 and 510 through bridge arm switches 53, 55, and 57, and then returns to the grounding terminal through bridge arm switch 58; Figure 6 As shown, when bridge arm switches 64 and 66 are turned on, the current in power inductors 61 and 62 charges output capacitors 69 and 610 through bridge arm switches 64 and 66, and then returns to the ground terminal through bridge arm switch 68.

[0084] Optionally, the output capacitor can filter out the output ripple of the sampling circuit. By adjusting the current conduction state of the sampling circuit at the current moment based on the switching state of the sampling circuit, the power inductor at a certain single-phase input terminal of the sampling circuit can no longer have switching losses and only bear conduction losses. This achieves the purpose of reducing the power dissipation and temperature rise of the power inductor, and reduces the risk of local thermal problems in the single-phase mode of the sampling circuit.

[0085] This embodiment obtains the access status of the single-phase input terminal in the sampling circuit, determines the open or closed state of the switch in the sampling circuit, and adjusts the current conduction based on the different states of the switch in the sampling circuit, thereby improving the technical effect of thermal balance in single-phase mode and solving the technical problem of poor thermal balance in single-phase mode.

[0086] Example 3

[0087] According to an embodiment of the present invention, a data processing apparatus is also provided. It should be noted that this data processing apparatus can be used to execute the data processing method in Embodiment 1.

[0088] Figure 9 This is a schematic diagram of a data processing apparatus according to an embodiment of the present invention. Figure 9 As shown, the data processing device 900 may include: an acquisition unit 902, a determination unit 904, and an adjustment unit 906.

[0089] The acquisition unit 902 is used to acquire the status data of the single-phase input terminal of the sampling circuit at the current moment, wherein the status data is used to characterize the connection status of the single-phase input terminal to the sampling circuit at the current moment.

[0090] The determination unit 904 is used to determine the switching state of the sampling circuit based on the state data;

[0091] Adjustment unit 906 is used to adjust the current conduction state of the sampling circuit at the current moment based on the switch state;

[0092] Optionally, the determining unit 904 includes: a first determining module for determining the phase difference of the sampling circuit based on the state data; and a second determining module for determining the switching state of the sampling circuit based on the phase difference.

[0093] Optionally, the first determining module includes: a first determining submodule, used to determine the phase difference in response to the positive half-cycle waveform of the single-phase input terminal connected to the sampling circuit; or a second determining submodule, used to determine the phase difference in response to the negative half-cycle waveform of the single-phase input terminal connected to the sampling circuit.

[0094] Optionally, the second determining module includes: a third determining submodule, used to determine, based on the phase difference, that the switching state of the relay in the sampling circuit is a closed state; and a fourth determining submodule, used to determine, based on the closed state, that the switching state of the bridge arm switch in the sampling circuit is a closed state.

[0095] Optionally, the device further includes: a first determining unit, configured to determine, in response to a positive half-cycle waveform of a single-phase input terminal connected to the sampling circuit, to turn on a first bridge arm switch of the sampling circuit and to close a second bridge arm switch of the sampling circuit; and a second determining unit, configured to determine, in response to a negative half-cycle waveform of a single-phase input terminal connected to the sampling circuit, to close the first bridge arm switch of the sampling circuit and to turn on the second bridge arm switch of the sampling circuit.

[0096] Optionally, the adjustment unit 906 further includes: determining a first current conduction state of the sampling circuit at the current moment in response to the first bridge arm switch being turned on and the second bridge arm switch being turned off; and determining a second current conduction state of the sampling circuit at the current moment in response to the first bridge arm switch being turned off and the second bridge arm switch being turned on.

[0097] In this embodiment of the invention, an acquisition unit acquires the state data of a single-phase input terminal of a sampling circuit at the current moment. The sampling circuit is deployed in the vehicle, and the state data characterizes the connection state of the single-phase input terminal to the sampling circuit at the current moment. A determination unit determines the switching state of the sampling circuit based on the state data. An adjustment unit adjusts the current conduction state of the sampling circuit at the current moment based on the switching state. In other words, this invention, by acquiring the connection state of the single-phase input terminal in the sampling circuit, determines the open or closed state of the switch in the sampling circuit, and adjusts the current conduction based on the different states of the switch in the sampling circuit, thereby improving the thermal balance in single-phase mode and solving the technical problem of poor thermal balance in single-phase mode.

[0098] Example 4

[0099] According to an embodiment of the present invention, a computer-readable storage medium is also provided, the storage medium including a stored program, wherein the program executes the data processing method in Embodiment 1 of the present invention.

[0100] Example 5

[0101] According to an embodiment of the present invention, a processor is also provided for running a program, wherein the program executes the data processing method in Embodiment 1 of the present invention during runtime.

[0102] Example 6

[0103] According to an embodiment of the present invention, a vehicle is also provided for performing the data processing method in Embodiment 1 of the present invention.

[0104] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0105] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0106] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0108] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0109] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0110] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method of processing data, characterized by, The method comprises: acquiring state data of a single-phase input terminal of a sampling circuit at a current time, wherein the sampling circuit is arranged in a vehicle, and the state data is used to represent an access state of the single-phase input terminal accessing the sampling circuit at the current time; determining a switching state of the sampling circuit based on the state data; adjusting a current conduction state of the sampling circuit at the current time based on the switching state; wherein determining the switching state of the sampling circuit based on the state data comprises: determining a phase difference of the sampling circuit based on the state data; and determining the switching state of the sampling circuit based on the phase difference; adjusting the current conduction state of the sampling circuit at the current time based on the switching state comprises: determining the current conduction state of the sampling circuit at the current time according to a switching state of a first bridge arm switch tube of the sampling circuit and a switching state of a second bridge arm switch tube of the sampling circuit, wherein the sampling circuit is a circuit of a three-phase input voltage, the first bridge arm switch tube and the second bridge arm switch tube are located in the same phase, and the first bridge arm switch tube and the second bridge arm switch tube are connected in series.

2. The method of claim 1, wherein, determining the phase difference of the sampling circuit based on the state data comprises: determining the phase difference in response to the single-phase input terminal accessing a positive half-wave form of the sampling circuit; or determining the phase difference in response to the single-phase input terminal accessing a negative half-wave form of the sampling circuit.

3. The method of claim 1, wherein, determining the switching state of the sampling circuit based on the phase difference comprises: determining that a switching state of a relay of the sampling circuit is a closed state based on the phase difference; determining that a switching state of a bridge arm switch tube of the sampling circuit is a closed state based on the closed state.

4. The method of claim 1, wherein, The method comprises: determining to open the first bridge arm switch tube of the sampling circuit and close the second bridge arm switch tube of the sampling circuit in response to the single-phase input terminal accessing the positive half-wave form of the sampling circuit; determining to close the first bridge arm switch tube of the sampling circuit and open the second bridge arm switch tube of the sampling circuit in response to the single-phase input terminal accessing the negative half-wave form of the sampling circuit.

5. The method of claim 4, wherein, adjusting the current conduction state of the sampling circuit at the current time based on the switching state comprises: determining a first current conduction state of the sampling circuit at the current time in response to the first bridge arm switch tube being opened and the second bridge arm switch tube being closed; determining a second current conduction state of the sampling circuit at the current time in response to the first bridge arm switch tube being closed and the second bridge arm switch tube being opened.

6. A data processing device, characterized by comprising: The method comprises: an acquisition unit, configured to acquire state data of a single-phase input terminal of a sampling circuit at a current time, wherein the sampling circuit is arranged in a vehicle, and the state data is used to represent an access state of the single-phase input terminal accessing the sampling circuit at the current time; a determination unit, configured to determine a switching state of the sampling circuit based on the state data; an adjustment unit, configured to adjust a current conduction state of the sampling circuit at the current time based on the switching state. The determining unit is further configured to determine a phase difference of the sampling circuit based on the state data; and determine a switching state of the sampling circuit based on the phase difference. The adjusting unit is further configured to determine a current conduction state of the sampling circuit at the current time according to the switching state of the first bridge arm switch tube and the switching state of the second bridge arm switch tube, wherein the sampling circuit is a circuit of three-phase input voltage, the first bridge arm switch tube and the second bridge arm switch tube are located in the same phase, and the first bridge arm switch tube and the second bridge arm switch tube are connected in series.

7. A computer readable storage medium characterized by The computer readable storage medium comprises a stored program, wherein the program, when executed, controls a device in which the computer readable storage medium is located to perform the method of any one of claims 1 to 5.

8. A processor, comprising: The processor is configured to execute a program, wherein the program, when executed, performs the method of any one of claims 1 to 5.

9. A vehicle characterized by comprising: A device for performing the method of any one of claims 1 to 5.

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