Control method of vehicle-mounted air conditioner compressor, vehicle-mounted charger and vehicle controller

Abstract

The invention discloses a control method of a vehicle-mounted air conditioner compressor, a vehicle-mounted charger and a vehicle controller, the control method of the vehicle-mounted air conditioner compressor is applied to the vehicle-mounted charger, and the vehicle-mounted charger is suitable for charging a power battery and / or supplying power to the vehicle-mounted air conditioner compressor. The method comprises the steps that under the condition that it is recognized that a vehicle-mounted charger charges a power battery and supplies power to a vehicle-mounted air conditioner compressor at the same time, a first control instruction is sent to a vehicle controller, and the first control instruction is used for instructing the vehicle controller to control the vehicle-mounted air conditioner compressor to improve carrier frequency operation. According to the method, the amplitude of the ripple current can be effectively reduced, gun jump of the vehicle-mounted charger is prevented, the user experience is improved, and the cost can be saved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a control method for a vehicle-mounted air-conditioning compressor, a computer-readable storage medium, an on-board charger, a vehicle controller, a vehicle charging control system and a vehicle. Background Art

[0002] In the related technology, when the on-board charger is slowly charging the vehicle, if there is someone in the passenger compartment, in order to provide a better driving experience, the air conditioning system will work at this time, and the on-board charger will directly supply power to the on-board air conditioning compressor and the power battery. However, due to the need to reduce the cost of the on-board charger, the bus capacitor is generally replaced with a thin-film capacitor with a smaller capacitance. In this way, when the on-board charger supplies power to the compressor and the power battery at the same time, the compressor's operating ripple current is too large, resulting in the on-board charger outputting too large a ripple current, and the on-board charger is prone to tripping, affecting the customer experience.

[0003] In order to ensure the continuity of the on-board charger, the differential mode inductance on the compressor input side is generally increased to reduce or suppress the impact of the compressor ripple current on the on-board charger. However, this measure will increase the cost of the compressor and it is difficult to solve the problem of compressor inductance heat dissipation. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first object of the present invention is to propose a control method for a vehicle air-conditioning compressor, which can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0005] A second object of the present invention is to provide another control method for a vehicle air-conditioning compressor.

[0006] A third object of the present invention is to provide a computer-readable storage medium.

[0007] A fourth object of the present invention is to provide a vehicle-mounted charger.

[0008] A fifth object of the present invention is to provide a vehicle controller.

[0009] A sixth object of the present invention is to provide a vehicle charging control system.

[0010] A seventh object of the present invention is to provide a vehicle.

[0011] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present invention proposes a control method for a vehicle-mounted air-conditioning compressor, which is applied to a vehicle-mounted charger, wherein the vehicle-mounted charger is suitable for charging a power battery and / or supplying power to the vehicle-mounted air-conditioning compressor. The method comprises: when it is identified that the vehicle-mounted charger is simultaneously charging the power battery and supplying power to the vehicle-mounted air-conditioning compressor, sending a first control instruction to a vehicle controller, wherein the first control instruction is used to instruct the vehicle controller to control the vehicle-mounted air-conditioning compressor to increase the carrier frequency operation.

[0012] According to the control method of the vehicle air-conditioning compressor of the embodiment of the present invention, the vehicle charger sends a first control instruction to the vehicle controller when recognizing that the vehicle charger is charging the power battery and supplying power to the vehicle air-conditioning compressor at the same time, and the vehicle controller controls the vehicle air-conditioning compressor to increase the carrier frequency according to the first control instruction. Therefore, the method can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0013] In addition, the control method of the vehicle air-conditioning compressor according to the above embodiment of the present invention may also have the following additional technical features:

[0014] According to one embodiment of the present invention, identifying that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time includes: determining the charging type of the vehicle; and when the charging type is slow charging of the vehicle by the on-board charger, determining that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time.

[0015] According to one embodiment of the present invention, when it is identified that the on-board charger does not supply power to the on-board air-conditioning compressor, the method further includes: sending a second control instruction to the vehicle controller, wherein the second control instruction is used to instruct the vehicle controller to control the on-board air-conditioning compressor to operate based on the target carrier frequency.

[0016] To achieve the above-mentioned purpose, the second aspect of the embodiment of the present invention proposes a control method for a vehicle-mounted air-conditioning compressor, which is applied to a vehicle controller, and the method includes: receiving a first control instruction sent by an on-board charger, wherein the on-board charger is suitable for charging a power battery and / or powering the on-board air-conditioning compressor, and sending the first control instruction to the vehicle controller while charging the power battery and powering the on-board air-conditioning compressor at the same time; based on the first control instruction, controlling the on-board air-conditioning compressor to increase the carrier frequency operation.

[0017] According to the control method of the vehicle air-conditioning compressor of the embodiment of the present invention, the vehicle charger sends a first control instruction to the vehicle controller while charging the power battery and supplying power to the vehicle air-conditioning compressor at the same time, and the vehicle controller receives the first control instruction sent by the vehicle charger, and controls the vehicle air-conditioning compressor to increase the carrier frequency operation based on the first control instruction. Therefore, the method can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0018] In addition, the control method of the vehicle air-conditioning compressor according to the above embodiment of the present invention may also have the following additional technical features:

[0019] According to one embodiment of the present invention, controlling the vehicle air-conditioning compressor to increase the carrier frequency operation includes: increasing the switching frequency of the inverter driving the vehicle air-conditioning compressor to increase the carrier frequency of the vehicle air-conditioning compressor.

[0020] According to one embodiment of the present invention, the above method also includes: receiving a second control instruction sent by the on-board charger, wherein the on-board charger sends the second control instruction to the vehicle controller when identifying that the on-board charger does not power the on-board air-conditioning compressor; based on the second control instruction, controlling the on-board air-conditioning compressor to operate according to the target carrier frequency.

[0021] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium on which a control program for a vehicle air-conditioning compressor is stored. When the control program is executed by a processor, the control method for the vehicle air-conditioning compressor is implemented.

[0022] According to the computer-readable storage medium of an embodiment of the present invention, through the above-mentioned control method of the vehicle air-conditioning compressor, the amplitude of the ripple current can be effectively reduced, the vehicle charger can be prevented from jumping the gun, the user experience can be improved, and costs can be saved.

[0023] To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes a vehicle-mounted charger, comprising: a memory, a processor, and a control program for a vehicle-mounted air-conditioning compressor stored in the memory and executable on the processor. When the processor executes the control program, the control method for the vehicle-mounted air-conditioning compressor of the first aspect of the present invention is implemented.

[0024] According to the vehicle charger of the embodiment of the present invention, the control method of the vehicle air-conditioning compressor can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from tripping, improve the user experience, and save costs.

[0025] To achieve the above-mentioned purpose, the fifth aspect of the present invention proposes a vehicle controller, comprising: a memory, a processor, and a control program for a vehicle air-conditioning compressor stored in the memory and executable on the processor. When the processor executes the control program, the control method for the vehicle air-conditioning compressor of the first aspect of the present invention is implemented.

[0026] The vehicle controller according to the embodiment of the present invention can effectively reduce the amplitude of the ripple current through the above-mentioned control method of the vehicle air-conditioning compressor, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0027] To achieve the above-mentioned objectives, the sixth aspect of the present invention proposes a vehicle charging control system, comprising: a power battery; an on-board air-conditioning compressor; a vehicle controller for controlling the on-board air-conditioning compressor; an on-board charger, suitable for charging the power battery and / or powering the on-board air-conditioning compressor, and sending a first control instruction to the vehicle controller while charging the power battery and powering the on-board air-conditioning compressor at the same time; the vehicle controller is also used to control the on-board air-conditioning compressor to increase the carrier frequency operation based on the first control instruction.

[0028] According to the vehicle charging control system of the embodiment of the present invention, when the on-board charger recognizes that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time, the on-board charger sends a first control instruction to the vehicle controller, and the vehicle controller controls the on-board air-conditioning compressor to increase the carrier frequency according to the first control instruction. As a result, the system can effectively reduce the amplitude of the ripple current, prevent the on-board charger from jumping, improve the user experience, and save costs.

[0029] To achieve the above-mentioned purpose, a seventh aspect of the present invention proposes a vehicle, comprising: the above-mentioned on-board charger, or the above-mentioned vehicle controller, or the above-mentioned vehicle charging control system.

[0030] The vehicle according to the embodiment of the present invention can effectively improve the user experience and save costs through the above-mentioned on-board charger, or vehicle controller, or vehicle charging control system.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a flow chart of a method for controlling a vehicle air-conditioning compressor according to an embodiment of the first aspect of the present invention;

[0033] Figure 2A hardware topology diagram of a vehicle power supply system according to an embodiment of the present invention;

[0034] Figure 3 is a flow chart of a method for controlling a vehicle air-conditioning compressor according to an embodiment of the present invention;

[0035] Figure 4 is a flow chart of a method for controlling a vehicle air-conditioning compressor according to an embodiment of the second aspect of the present invention;

[0036] Figure 5 is a block diagram of a vehicle charger according to an embodiment of the present invention;

[0037] Figure 6 is a block diagram of a vehicle controller according to an embodiment of the present invention;

[0038] Figure 7 is a block diagram of a vehicle charging control system according to an embodiment of the present invention;

[0039] Figure 8 is a block diagram of a vehicle according to an embodiment of the present invention;

[0040] Fig. 9 is a block diagram of a vehicle according to another embodiment of the present invention;

[0041] Fig.10 FIG. 4 is a block diagram of a vehicle according to yet another embodiment of the present invention. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0043] The following describes a control method for a vehicle air-conditioning compressor, a computer-readable storage medium, a vehicle charger, a vehicle controller, a vehicle charging control system, and a vehicle according to an embodiment of the present invention with reference to the accompanying drawings.

[0044] Figure 1 The figure is a flow chart of a method for controlling a vehicle air-conditioning compressor according to an embodiment of the present invention.

[0045] like Figure 1 As shown, the control method of the vehicle air-conditioning compressor of the embodiment of the present invention is applied to a vehicle charger, and the vehicle charger is suitable for charging the power battery and / or supplying power to the vehicle air-conditioning compressor. The method may include the following steps:

[0046] S101, when it is identified that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time, a first control instruction is sent to the vehicle controller, wherein the first control instruction is used to instruct the vehicle controller to control the on-board air-conditioning compressor to increase the carrier frequency operation.

[0047] Specifically, if Figure 2 As shown, the on-board charger is connected to the power battery and the on-board air-conditioning compressor respectively. When the power battery needs to be charged, the on-board charger can be connected to the AC charging pile to convert AC power into DC power to charge the power battery; when the power battery is fully charged and the charging gun is not unplugged, and there are passengers entering the passenger compartment, the on-board charger can power the on-board air-conditioning compressor to operate the on-board air-conditioning to provide passengers with a good riding experience. During the process of the on-board charger charging the power battery, if a passenger enters the passenger compartment, the on-board charger can power the on-board air-conditioning compressor while charging the power battery, so that the on-board air-conditioning can operate to provide passengers with a good riding experience. It should be understood that because the working ripple current of the on-board air-conditioning compressor is too large, the output ripple current of the on-board charger is too large, and the on-board charger is prone to jump guns, affecting customer experience. Therefore, when the on-board charger charges the power battery and powers the on-board air-conditioning compressor at the same time, it is necessary to reduce the amplitude of the working ripple current of the on-board air-conditioning compressor.

[0048] Specifically, when the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time, the on-board charger sends a first control instruction to the vehicle controller, instructing the vehicle controller to control the on-board air-conditioning compressor to increase the carrier frequency. After receiving the first control instruction, the on-board controller controls the on-board air-conditioning compressor to increase the carrier frequency. Since the ripple current of the on-board air-conditioning compressor is related to the carrier frequency of the on-board air-conditioning compressor, the higher the carrier frequency, the smaller the ripple current. Therefore, increasing the carrier frequency of the on-board air-conditioning compressor can effectively reduce the amplitude of the ripple current, prevent the on-board charger from jumping the gun, and improve the user experience.

[0049] According to one embodiment of the present invention, identifying that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time includes: determining the charging type of the vehicle; when the charging type is slow charging of the vehicle by the on-board charger, determining that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time.

[0050] Specifically, vehicles can usually be charged in two ways: DC charging piles and AC charging piles. DC charging piles charge the power battery directly, with high charging power and fast charging speed, which is fast charging; AC charging piles charge the power battery after converting AC power into DC power through an on-board charger, with low charging power and slow charging speed, which is slow charging. When it is identified that the vehicle is being slow-charged through an on-board charger and the on-board air-conditioning compressor is running, it can be determined that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time.

[0051] According to one embodiment of the present invention, when it is identified that the on-board charger does not supply power to the on-board air-conditioning compressor, the method further includes: sending a second control instruction to the vehicle controller, wherein the second control instruction is used to instruct the vehicle controller to control the on-board air-conditioning compressor to operate based on the target carrier frequency. The target carrier frequency may be the carrier frequency of the normal operation of the on-board air-conditioning compressor.

[0052] Specifically, when the onboard charger does not supply power to the onboard air-conditioning compressor, such as when the compressor is directly powered by the power battery, the onboard charger sends a second control instruction to the vehicle controller, instructing the vehicle controller to control the onboard air-conditioning compressor to operate based on the target carrier frequency. After receiving the second control instruction, the vehicle controller controls the onboard air-conditioning compressor to operate at the normal operating carrier frequency (target carrier frequency).

[0053] For ease of understanding, the control method of the vehicle air-conditioning compressor of the present invention is described in a specific embodiment. Figure 3 As shown, the control method of the vehicle air-conditioning compressor of the embodiment of the present invention may include the following steps:

[0054] Step S301, obtaining the charging type of the vehicle.

[0055] Step S302, determine whether the charging type is slow charging of the vehicle by the on-board charger. If yes, execute step S303; if not, execute step S307.

[0056] Step S303, determining that the on-board charger charges the power battery and supplies power to the on-board air-conditioning compressor at the same time.

[0057] Step S304: sending a first control instruction to the vehicle controller.

[0058] Step S305: receiving a first control instruction sent by the on-board charger.

[0059] Step S306: Based on the first control instruction, control the vehicle air-conditioning compressor to increase the carrier frequency.

[0060] Step S307, determining that the onboard charger does not supply power to the onboard air-conditioning compressor.

[0061] Step S308: sending a second control instruction to the vehicle controller.

[0062] Step S309: receiving a second control instruction sent by the on-board charger.

[0063] Step S310: Based on the second control instruction, the vehicle air-conditioning compressor is controlled to operate according to the target carrier frequency.

[0064] In summary, according to the control method of the vehicle air-conditioning compressor of the embodiment of the present invention, when the vehicle charger recognizes that the vehicle charger is charging the power battery and supplying power to the vehicle air-conditioning compressor at the same time, the vehicle controller sends a first control instruction to the vehicle controller, and the vehicle controller controls the vehicle air-conditioning compressor to increase the carrier frequency according to the first control instruction. Therefore, the method can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0065] In order to clearly explain the above embodiment, the second aspect of the present invention provides a control method for a vehicle air-conditioning compressor, which is applied to a vehicle controller. Figure 4 The present invention is a flowchart of a method for controlling a vehicle air-conditioning compressor according to a second embodiment of the present invention.

[0066] like Figure 4 As shown, the control method of the vehicle air-conditioning compressor may include the following steps:

[0067] S201, receiving a first control instruction sent by an on-board charger, wherein the on-board charger is suitable for charging a power battery and / or supplying power to an on-board air-conditioning compressor, and sending the first control instruction to a vehicle controller while simultaneously charging the power battery and supplying power to the on-board air-conditioning compressor.

[0068] S202, based on the first control instruction, controlling the vehicle air-conditioning compressor to increase the carrier frequency.

[0069] Specifically, if Figure 2As shown, the on-board charger is connected to the power battery and the on-board air-conditioning compressor respectively. When the power battery needs to be charged, the on-board charger can be connected to the AC charging pile to convert AC power into DC power to charge the power battery; when the power battery is fully charged and the charging gun is not unplugged, and there are passengers entering the passenger compartment, the on-board charger can power the on-board air-conditioning compressor to operate the on-board air-conditioning to provide passengers with a good riding experience. During the process of the on-board charger charging the power battery, if a passenger enters the passenger compartment, the on-board charger can power the on-board air-conditioning compressor while charging the power battery, so that the on-board air-conditioning can operate to provide passengers with a good riding experience. It should be understood that because the working ripple current of the on-board air-conditioning compressor is too large, the output ripple current of the on-board charger is too large, and the on-board charger is prone to jump guns, affecting customer experience. Therefore, when the on-board charger charges the power battery and powers the on-board air-conditioning compressor at the same time, it is necessary to reduce the amplitude of the working ripple current of the on-board air-conditioning compressor.

[0070] Specifically, when the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time, the on-board charger sends a first control instruction to the vehicle controller, instructing the vehicle controller to control the on-board air-conditioning compressor to increase the carrier frequency. After receiving the first control instruction, the on-board controller controls the on-board air-conditioning compressor to increase the carrier frequency. Since the ripple current of the on-board air-conditioning compressor is related to the carrier frequency of the on-board air-conditioning compressor, the higher the carrier frequency, the smaller the ripple current. Therefore, increasing the carrier frequency of the on-board air-conditioning compressor can effectively reduce the amplitude of the ripple current, prevent the on-board charger from jumping the gun, and improve the user experience.

[0071] According to one embodiment of the present invention, controlling the vehicle air-conditioning compressor to increase the carrier frequency includes: increasing the switching frequency of the inverter driving the vehicle air-conditioning compressor to increase the carrier frequency of the vehicle air-conditioning compressor.

[0072] Specifically, if Figure 2 As shown, the vehicle air-conditioning compressor is usually controlled using an SPWM (Space Vector Pulse Width Modulation) algorithm or an SPWM (Sine Pulse Width Modulation) algorithm, and the on-off of each switch tube in the inverter of the vehicle air-conditioning compressor is usually controlled by a PWM (Pulse Width Modulation) signal. The vehicle controller can adjust the switching frequency of the inverter of the vehicle air-conditioning compressor by adjusting the duty cycle of the PWM signal.

[0073] Specifically, after receiving the first control instruction, the vehicle controller can increase the duty cycle of the PWM signal to increase the switching frequency of the inverter that drives the vehicle air-conditioning compressor, thereby increasing the carrier frequency of the vehicle air-conditioning compressor, effectively reducing the amplitude of the ripple current, preventing the vehicle charger from jumping, and improving the user experience.

[0074] According to an embodiment of the present invention, the above method further includes: receiving a second control instruction sent by the on-board charger, wherein the on-board charger sends the second control instruction to the vehicle controller when recognizing that the on-board charger does not supply power to the on-board air-conditioning compressor; and based on the second control instruction, controlling the on-board air-conditioning compressor to operate according to the target carrier frequency. The target carrier frequency may be the carrier frequency of the normal operation of the on-board air-conditioning compressor.

[0075] Specifically, when the onboard charger does not supply power to the onboard air-conditioning compressor, such as when the compressor is directly powered by the power battery, the onboard charger sends a second control instruction to the vehicle controller, instructing the vehicle controller to control the onboard air-conditioning compressor to operate based on the target carrier frequency. After receiving the second control instruction, the vehicle controller controls the onboard air-conditioning compressor to operate at the normal operating carrier frequency (target carrier frequency).

[0076] According to the control method of the vehicle air-conditioning compressor of the embodiment of the present invention, the vehicle charger sends a first control instruction to the vehicle controller while charging the power battery and supplying power to the vehicle air-conditioning compressor at the same time, and the vehicle controller receives the first control instruction sent by the vehicle charger, and controls the vehicle air-conditioning compressor to increase the carrier frequency operation based on the first control instruction. Therefore, the method can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0077] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0078] The computer-readable storage medium of the embodiment of the present invention stores a control program for a vehicle air-conditioning compressor, and when the control program is executed by a processor, the control method for the vehicle air-conditioning compressor is implemented.

[0079] According to the computer-readable storage medium of an embodiment of the present invention, through the above-mentioned control method of the vehicle air-conditioning compressor, the amplitude of the ripple current can be effectively reduced, the vehicle charger can be prevented from jumping the gun, the user experience can be improved, and costs can be saved.

[0080] Corresponding to the above embodiment, the present invention also proposes a vehicle-mounted charger.

[0081] Figure 5 FIG. 4 is a block diagram of a vehicle charger according to an embodiment of the present invention.

[0082] like Figure 5 As shown, the vehicle charger 100 of the embodiment of the present invention includes: a memory 110, a processor 120, and a control program for the vehicle air-conditioning compressor stored in the memory 110 and executable on the processor 120. When the processor 120 executes the control program, the control method for the vehicle air-conditioning compressor of the first aspect of the present invention is implemented.

[0083] According to the vehicle charger of the embodiment of the present invention, the control method of the vehicle air-conditioning compressor can effectively reduce the amplitude of the ripple current, prevent the vehicle charger from tripping, improve the user experience, and save costs.

[0084] Corresponding to the above embodiment, the present invention also proposes a vehicle controller.

[0085] Figure 6 FIG. 4 is a block diagram of a vehicle controller according to an embodiment of the present invention.

[0086] like Figure 6 As shown, the vehicle controller 200 of the embodiment of the present invention includes: a memory 210, a processor 220, and a control program for the vehicle air-conditioning compressor stored in the memory 210 and executable on the processor 220. When the processor 220 executes the control program, the control method for the vehicle air-conditioning compressor of the second aspect of the embodiment of the present invention is implemented.

[0087] The vehicle controller according to the embodiment of the present invention can effectively reduce the amplitude of the ripple current through the above-mentioned control method of the vehicle air-conditioning compressor, prevent the vehicle charger from jumping, improve the user experience, and save costs.

[0088] Corresponding to the above embodiment, the present invention also proposes a vehicle charging control system.

[0089] Figure 7 FIG. 4 is a block diagram of a vehicle charging control system according to an embodiment of the present invention.

[0090] like Figure 7 As shown, the vehicle charging control system 300 of the embodiment of the present invention includes: a power battery 310; an on-board air-conditioning compressor 320; a vehicle controller 200, which is used to control the on-board air-conditioning compressor 320; an on-board charger 100, which is suitable for charging the power battery 310 and / or supplying power to the on-board air-conditioning compressor 320, and sending a first control instruction to the vehicle controller 200 when charging the power battery 310 and supplying power to the on-board air-conditioning compressor 320 at the same time; the vehicle controller 200 is also used to control the on-board air-conditioning compressor 320 to increase the carrier frequency operation based on the first control instruction.

[0091] Specifically, if Figure 7As shown, the on-board charger 100 is connected to the power battery 310 and the on-board air-conditioning compressor 320 respectively. When the power battery 310 needs to be charged, the on-board charger 100 can be connected to the AC charging pile to convert the AC power into DC power to charge the power battery 310; when the power battery 310 is fully charged and the charging gun is not unplugged, and a passenger enters the passenger compartment, the on-board charger 100 can supply power to the on-board air-conditioning compressor 320 to operate the on-board air-conditioning to provide passengers with a good riding experience. During the process of the on-board charger 100 charging the power battery 310, if a passenger enters the passenger compartment, the on-board charger 100 can supply power to the on-board air-conditioning compressor 320 while charging the power battery 310, so that the on-board air-conditioning can operate to provide passengers with a good riding experience. It should be understood that because the working ripple current of the on-board air-conditioning compressor 320 is too large, the output ripple current of the on-board charger 100 is too large, and the on-board charger 100 is prone to gun jumping, affecting the customer experience. Therefore, when the on-board charger 100 charges the power battery 310 and supplies power to the on-board air-conditioning compressor 320 at the same time, the amplitude of the operating ripple current of the on-board air-conditioning compressor 320 needs to be reduced.

[0092] Specifically, when the on-board charger 100 charges the power battery 310 and supplies power to the on-board air-conditioning compressor 320 at the same time, the on-board charger 100 sends a first control instruction to the vehicle controller 200, instructing the vehicle controller 200 to control the on-board air-conditioning compressor 320 to increase the carrier frequency. After receiving the first control instruction, the on-board controller controls the on-board air-conditioning compressor 320 to increase the carrier frequency. Since the ripple current of the on-board air-conditioning compressor 320 is related to the carrier frequency of the on-board air-conditioning compressor 320, the higher the carrier frequency, the smaller the ripple current. Therefore, increasing the carrier frequency of the on-board air-conditioning compressor 320 can effectively reduce the amplitude of the ripple current, prevent the on-board charger 100 from jumping the gun, and improve the user experience.

[0093] According to one embodiment of the present invention, identifying that the on-board charger 100 charges the power battery 310 and supplies power to the on-board air-conditioning compressor 320 at the same time includes: determining the charging type of the vehicle; when the charging type is that the on-board charger 100 slow charges the vehicle, determining that the on-board charger 100 charges the power battery 310 and supplies power to the on-board air-conditioning compressor 320 at the same time.

[0094] Specifically, a vehicle can usually be charged in two ways: a DC charging pile and an AC charging pile. A DC charging pile directly charges the power battery 310, with high charging power and fast charging speed, which is fast charging; an AC charging pile converts AC power into DC power through an onboard charger 100 and then charges the power battery 310, with low charging power and slow charging speed, which is slow charging. When it is identified that the vehicle is being slow-charged by the onboard charger 100 and the onboard air-conditioning compressor 320 is running, it can be determined that the onboard charger 100 is charging the power battery 310 and supplying power to the onboard air-conditioning compressor 320 at the same time.

[0095] According to one embodiment of the present invention, when it is identified that the on-board charger 100 does not supply power to the on-board air-conditioning compressor 320, the on-board charger 100 is further used to send a second control instruction to the vehicle controller 200, wherein the second control instruction is used to instruct the vehicle controller 200 to control the on-board air-conditioning compressor 320 to operate based on the target carrier frequency; the vehicle controller 200 is used to receive the second control instruction sent by the on-board charger 100, and based on the second control instruction, control the on-board air-conditioning compressor 320 to operate according to the target carrier frequency. The target carrier frequency may be the carrier frequency of the normal operation of the on-board air-conditioning compressor 320.

[0096] Specifically, when the onboard charger 100 does not supply power to the onboard air-conditioning compressor 320, such as when the compressor is directly powered by the power battery 310, the onboard charger 100 sends a second control instruction to the vehicle controller 200, instructing the vehicle controller 200 to control the onboard air-conditioning compressor 320 to operate based on the target carrier frequency. After receiving the second control instruction, the vehicle controller 200 controls the onboard air-conditioning compressor 320 to operate at the normal operating carrier frequency (target carrier frequency).

[0097] According to one embodiment of the present invention, the vehicle controller 200 controls the vehicle air-conditioning compressor 320 to increase the carrier frequency operation, specifically, by increasing the switching frequency of the inverter driving the vehicle air-conditioning compressor 320 to increase the carrier frequency of the vehicle air-conditioning compressor 320 .

[0098] It should be noted that for details not disclosed in the vehicle charging control system of the embodiment of the present invention, please refer to the details disclosed in the control method of the vehicle air-conditioning compressor of the embodiment of the present invention, and the details will not be repeated here.

[0099] According to the vehicle charging control system of the embodiment of the present invention, when the on-board charger recognizes that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time, the on-board charger sends a first control instruction to the vehicle controller, and the vehicle controller controls the on-board air-conditioning compressor to increase the carrier frequency according to the first control instruction. As a result, the system can effectively reduce the amplitude of the ripple current, prevent the on-board charger from jumping, improve the user experience, and save costs.

[0100] Corresponding to the above embodiment, the present invention also provides a vehicle.

[0101] According to one embodiment of the present invention, Figure 8 As shown, the vehicle 1000 includes: the above-mentioned on-board charger 100.

[0102] According to another embodiment of the present invention, Fig. 9 As shown, the vehicle 1000 includes: the vehicle controller 200 mentioned above.

[0103] According to another embodiment of the present invention, Fig.10 As shown, the vehicle 1000 includes: the above-mentioned vehicle charging control system 300.

[0104] The vehicle according to the embodiment of the present invention can effectively improve the user experience and save costs through the above-mentioned on-board charger, or vehicle controller, or vehicle charging control system.

[0105] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0106] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0109] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0110] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling a vehicle air-conditioning compressor, characterized in that: Applied to an on-board charger, the on-board charger is suitable for charging a power battery and / or supplying power to the on-board air-conditioning compressor, the method comprises: When it is identified that the on-board charger is charging the power battery and supplying power to the on-board air-conditioning compressor at the same time, a first control instruction is sent to the vehicle controller, wherein the first control instruction is used to instruct the vehicle controller to control the on-board air-conditioning compressor to increase the carrier frequency operation.

2. The method according to claim 1, characterized in that Identifying that the on-board charger is simultaneously charging the power battery and supplying power to the on-board air-conditioning compressor includes: Determine the vehicle's charging type; When the charging type is that the on-board charger performs slow charging on the vehicle, it is determined that the on-board charger charges the power battery and supplies power to the on-board air-conditioning compressor at the same time.

3. The method according to claim 1 or 2, characterized in that: In the case where it is identified that the on-board charger does not supply power to the on-board air-conditioning compressor, the method further includes: A second control instruction is sent to the vehicle controller, wherein the second control instruction is used to instruct the vehicle controller to control the vehicle air-conditioning compressor to operate based on a target carrier frequency.

4. A method for controlling a vehicle air-conditioning compressor, characterized in that: Applied to a vehicle controller, the method comprises: receiving a first control instruction sent by an on-board charger, wherein the on-board charger is suitable for charging a power battery and / or supplying power to the on-board air-conditioning compressor, and sending the first control instruction to the vehicle controller while simultaneously charging the power battery and supplying power to the on-board air-conditioning compressor; Based on the first control instruction, the vehicle air-conditioning compressor is controlled to increase the carrier frequency.

5. The method according to claim 4, characterized in that Controlling the vehicle air-conditioning compressor to increase the carrier frequency operation includes: The carrier frequency of the vehicle air-conditioning compressor is increased by increasing the switching frequency of the frequency converter driving the vehicle air-conditioning compressor.

6. The method according to claim 4 or 5, characterized in that: Also includes: receiving a second control instruction sent by the on-board charger, wherein the on-board charger sends the second control instruction to the vehicle controller when recognizing that the on-board charger does not supply power to the on-board air-conditioning compressor; Based on the second control instruction, the vehicle air-conditioning compressor is controlled to operate according to the target carrier frequency.

7. A computer-readable storage medium, characterized in that: A control program for a vehicle air-conditioning compressor is stored thereon, and when the control program is executed by a processor, a control method for a vehicle air-conditioning compressor according to any one of claims 1-6 is implemented.

8. A vehicle charger, characterized in that: include: A memory, a processor, and a control program for a vehicle air-conditioning compressor stored in the memory and executable on the processor. When the processor executes the control program, a control method for the vehicle air-conditioning compressor according to any one of claims 1 to 3 is implemented.

9. A vehicle controller, characterized in that: include: A memory, a processor, and a control program for a vehicle air-conditioning compressor stored in the memory and executable on the processor. When the processor executes the control program, a control method for the vehicle air-conditioning compressor according to any one of claims 4 to 6 is implemented.

10. A vehicle charging control system, characterized in that: include: Power battery; Car air conditioning compressor; A vehicle controller, used to control the vehicle air-conditioning compressor; an on-board charger, adapted to charge the power battery and / or supply power to the on-board air-conditioning compressor, and send a first control instruction to the vehicle controller while simultaneously charging the power battery and supplying power to the on-board air-conditioning compressor; The vehicle controller is also used to control the vehicle air-conditioning compressor to increase the carrier frequency based on the first control instruction.

11. A vehicle, characterized in that: include: The on-board charger according to claim 8, or the vehicle controller according to claim 9, or the vehicle charging control system according to claim 10.

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