Vehicle control method and apparatus, and charging device control method and apparatus

Abstract

A vehicle control method and a charging device control method. The vehicle control method comprises: when a vehicle is physically connected to a charging device, controlling an electrical device to be electrically connected to the charging device, such that the charging device supplies power to the electrical device; and controlling electrical connection between a power battery and the charging device to be disconnected. The charging device control method comprises: receiving third state information of a vehicle, the third state information of the vehicle being used for indicating that the vehicle is in a heating ready state; and causing a charging device to be electrically connected to an electrical device, and sending second state information of the charging device to the vehicle, the second state information of the charging device being used for indicating that the charging device is in a heating ready state. The control methods increase application scenarios of charging devices so as to enable power energy of charging devices to be flexibly used, and also allow for subsequent implementation of a heating function for power batteries.

Description

Vehicle control method and device, charging equipment control method and device

[0001] Cross-references

[0002] This application refers to Chinese Patent Application No. 202311515317.4, filed on November 14, 2023, entitled “Vehicle Control Method and Device, Charging Equipment Control Method and Device,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a vehicle control method and control device, a charging device control method and control device, a computing device, a vehicle, a charging device, a computer-readable storage medium, and a computer program product. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] Electric vehicles are equipped with numerous electrical devices. These devices are typically powered by the vehicle's power battery. When the battery is low, it can be recharged using charging equipment such as charging piles. Charging equipment is typically connected to the power grid or energy storage devices and can provide sufficient power. However, once connected to the vehicle, the charging equipment is typically only used to charge the vehicle's power battery and cannot flexibly utilize the power generated by the charging equipment.

[0006] Summary of the Invention

[0007] The present application aims to solve at least one of the technical problems existing in the background art. To this end, the embodiments of the present application provide a vehicle control method and control device, a charging device control method and control device, a computing device, a vehicle, a charging device, a computer-readable storage medium, and a computer program product to alleviate, mitigate, or eliminate the problems in the related art.

[0008] An embodiment of the first aspect of the present application provides a method for controlling a vehicle, wherein the vehicle includes a power battery and an electrical device. The method includes: when the vehicle is physically connected to a charging device: controlling the electrical connection between the electrical device and the charging device so that the charging device supplies power to the electrical device; and controlling the electrical connection between the power battery and the charging device to be disconnected.

[0009] In the technical solution of the embodiment of the present application, by electrically connecting the charging device to the electrical equipment in the vehicle while the charging device is physically connected to the vehicle, and disconnecting the electrical connection between the charging device and the power battery, the charging device can supply power to the electrical equipment before charging the power battery, thereby expanding the application scenarios of the charging device and enabling flexible utilization of the electric energy of the charging device.

[0010] In some embodiments, the vehicle further includes a bypass module for connecting or disconnecting the user device from the charging device. By installing the bypass module in the vehicle and using it to connect or disconnect the user device from the charging device, the charging device can supply power to the user device as needed.

[0011] In some embodiments, when the power device is electrically connected to the charging device, the electrical connection between the power device and the power battery is disconnected. By disconnecting the electrical connection between the power device and the power battery, the charging device and the power battery can be isolated from each other when the charging device supplies power to the power device, thereby reducing the impact on the charging device.

[0012] In some embodiments, controlling the electrical disconnection between the power battery and the charging device includes controlling the electrical disconnection between the power battery and the charging device when the power-consuming device is electrically connected to the charging device. Disconnecting the electrical connection between the power battery and the charging device when the power-consuming device is electrically connected to the charging device ensures that the charging device is always connected to a load, thereby preventing it from being unloaded and minimizing damage to the charging device.

[0013] In some embodiments, the vehicle further includes an electric energy module, and the control method further includes: after controlling the electrical connection between the power battery and the charging device to be disconnected, causing the electric energy module to apply current to the power battery to heat the power battery. When the temperature is low, the power battery cannot be charged because its temperature is too low, and at this time, the electric energy module needs to be used to heat the power battery. At this time, the charging device is electrically connected to the electrical device, while the electrical connection with the power battery is disconnected, reducing the impact of the current generated by the electric energy module on the charging device. Moreover, while maintaining the physical connection between the charging device and the vehicle, the battery can be heated first and then charged, without having to wait for the battery heating to be completed before physically connecting the charging device to the vehicle for charging, which greatly reduces the complexity of the entire charging process.

[0014] In some embodiments, the vehicle further includes a first switch module configured to electrically connect the power battery to the charging device. Controlling the disconnection between the power battery and the charging device includes disconnecting the first switch module. By disconnecting the first switch module, the power battery and the charging device can be electrically disconnected while maintaining a physical connection between the charging device and the vehicle.

[0015] In some embodiments, the first switch module includes a first switch and a second switch, the first switch and the second switch being electrically connected to the positive and negative electrodes of the power battery, respectively. Controlling the disconnection of the electrical connection between the power battery and the charging device includes disconnecting at least one of the first and second switches. A switch is provided at the positive and negative electrodes of the power battery, respectively, so that disconnecting only one of the switches can disconnect the electrical connection between the power battery and the charging device.

[0016] In some embodiments, the vehicle further includes an on-board insulation detection device, and while the electrical device is electrically connected to the charging device, the electrical connection between the on-board insulation detection device and the power supply circuit through which the charging device supplies power to the electrical device is disconnected. While the charging device supplies power to the electrical device, the vehicle insulation detection device may disconnect the power supply circuit.

[0017] In some embodiments, controlling the electrical connection between the electric device and the charging device includes: in response to an external voltage of the first switch module being less than a first voltage threshold, electrically connecting the electric device to the charging device via a bypass module. Electrically connecting the electric device to the charging device via the bypass module only occurs when the external voltage of the first switch module is less than the first voltage threshold. This reduces the risk of vehicle failures caused by excessive external voltage and improves operational reliability and safety.

[0018] In some embodiments, the first voltage threshold is 60 V. By setting a suitable first voltage threshold, operational safety can be improved.

[0019] In some embodiments, the control method further includes: receiving first charging device status information from the charging device before controlling the electrical connection between the electrical device and the charging device; and, in response to receiving the first charging device status information, transmitting first vehicle status information to the charging device. Before controlling the electrical connection between the electrical device and the charging device, the vehicle and the charging device exchange a communication handshake message, and only after confirming that the vehicle and the charging device are in normal condition can the electrical device be electrically connected to the charging device to improve reliability.

[0020] In some embodiments, the control method further includes: controlling the power battery to be electrically connected to the charging device after controlling the electrical connection between the power battery and the charging device to be disconnected; and charging the power battery using the charging device. When the power battery is not ready for charging, the electrical connection between the power battery and the charging device needs to be disconnected, and the power battery needs to be heated. When the power battery is ready for charging, the electrical connection between the power battery and the charging device is restored, and the charging device can begin charging the power battery. This allows charging the battery after battery heating is completed without disconnecting the physical connection between the charging device and the vehicle (for example, without unplugging the vehicle plug of the charging device from the vehicle socket), thereby greatly reducing the complexity of the entire charging process.

[0021] In some embodiments, the control method further includes: in response to a heating stop instruction, causing the power module to stop supplying current to the power battery. When the vehicle or charging equipment reports that heating of the power battery has stopped, the power module stops supplying current to the power battery to stop heating the power battery, thereby accelerating the transition to the next operating phase and improving operational efficiency.

[0022] In some embodiments, the control method further includes: after the power module stops supplying current to the power battery, transmitting second vehicle status information to the charging device. When heating of the power battery is completed, transmitting the second vehicle status information to the charging device allows the charging device to be informed of the current status of the vehicle (e.g., heating is complete, the vehicle is ready to proceed to the next stage).

[0023] In some embodiments, the electric energy module includes at least one of an energy storage module and a motor electronic control module. The energy storage module can be used to heat the power battery, and the motor electronic control module of the vehicle can also be used to heat the power battery.

[0024] In some embodiments, the bypass module includes at least one of a switch and a wire. The bypass module can be designed according to usage conditions to improve adaptability to various usage scenarios.

[0025] In some embodiments, the bypass module includes any of the following: a third switch for electrically connecting to the positive pole of the charging device and a fourth switch for electrically connecting to the negative pole of the charging device; a fifth switch for electrically connecting to the positive pole of the charging device and a first wire for electrically connecting to the negative pole of the charging device; a second wire for electrically connecting to the positive pole of the charging device and a sixth switch for electrically connecting to the negative pole of the charging device; a seventh switch for electrically connecting to the positive pole of the charging device; an eighth switch for electrically connecting to the negative pole of the charging device; a third wire for electrically connecting to the positive pole of the charging device; and a fourth wire for electrically connecting to the negative pole of the charging device. The bypass module can be implemented using two switches, one switch, a wire, or a combination of switches and wires, which can be flexibly selected according to the usage scenario.

[0026] In some embodiments, the electrical device includes at least one of the following: an air conditioning compressor, a power converter, a heating film, a heat pump, and a positive temperature coefficient thermistor. The charging device can supply power to the electrical devices in the vehicle that require power. In some cases (for example, when the electrical device is a heating film, a heat pump, or a positive temperature coefficient thermistor), the electrical device can also provide auxiliary heating for the power battery, thereby shortening the heating time.

[0027] An embodiment of the second aspect of the present application provides a control method for a charging device, wherein the charging device is used to charge a vehicle, and the vehicle includes a power battery and an electrical device. The control method includes: receiving third state information of the vehicle, the third state information of the vehicle is used to indicate that the vehicle is in a heating-ready state; electrically connecting the charging device to the electrical device, and sending second state information of the charging device to the vehicle, the second state information of the charging device is used to indicate that the charging device is in a heating-ready state.

[0028] After receiving the third vehicle status information from the vehicle indicating that the vehicle is ready for heating, the charging device electrically connects to the power-consuming device and sends the second charging device status information to the vehicle indicating that the charging device is ready for heating. This communication between the charging device and the vehicle confirms the status of both devices, expanding the application scenarios of the charging device and enabling flexible utilization of the charging device's electrical energy. It also allows for the subsequent implementation of a heating function for the power battery.

[0029] In some embodiments, the control method further includes: before receiving the third state information of the vehicle, sending the first state information of the charging device to the vehicle. The heating process is initiated by the charging device, and the first state information of the charging device is sent to the vehicle.

[0030] In some embodiments, the control method further includes: receiving fourth vehicle status information indicating a power supply requirement of the vehicle; and in response to receiving the fourth vehicle status information, stopping sending the charging device first status information to the vehicle. After the status information of the charging device changes to ready, receiving a power supply requirement from the vehicle, and stopping sending the charging device first status information to the vehicle.

[0031] In some embodiments, the control method further includes: after stopping sending the first status information of the charging device to the vehicle, sending third status information and fourth status information of the charging device to the vehicle, wherein the third status information of the charging device indicates the output capacity of the charging device, and the fourth status information of the charging device indicates basic charging and heating information of the charging device. After stopping sending the first status information of the charging device, the third status information indicating the output capacity of the charging device and the fourth status information indicating basic charging and heating information of the charging device are started to be sent to the vehicle, thereby improving the reliability of the heating process.

[0032] In some embodiments, the control method further includes: receiving fifth vehicle status information indicating that power battery heating is complete; and in response to receiving the fifth vehicle status information, stopping transmitting third charging device status information to the vehicle. When power battery heating is complete, the charging device stops transmitting third charging device status information indicating the output capacity of the charging device to the vehicle.

[0033] In some embodiments, the control method further includes: before receiving the fifth vehicle state information, the charging device outputting an output voltage based on the vehicle power supply voltage requirement value. By outputting a voltage based on the vehicle power supply voltage requirement value, the stability of the power supply process can be improved.

[0034] In some embodiments, the control method further includes: before receiving the fifth state information of the vehicle, the charging device outputting an output current that does not exceed the current maximum power supply current requirement of the vehicle. The output current of the charging device does not exceed the current maximum power supply current requirement of the vehicle, thereby improving the reliability of the power supply process.

[0035] In some embodiments, the control method further includes: after receiving the fifth vehicle status information, controlling the electrical connection between the charging device and the power consumption device to be disconnected; and sending the fifth charging device status information to the vehicle. After receiving the fifth vehicle status information indicating that power battery heating is complete, the electrical connection between the charging device and the power consumption device is disconnected, and the fifth charging device status information indicating the disconnection between the charging device and the power consumption device is sent to the vehicle, preparing to enter the next stage.

[0036] In some embodiments, the control method further includes: monitoring the insulation resistance between a power supply circuit used by the charging device to supply power to the power-consuming device and a ground of the device. During the heating phase, the charging device performs insulation monitoring.

[0037] In some embodiments, the charging device further includes a discharge circuit, and the control method further includes: controlling the discharge circuit to discharge power before transmitting the fifth state information of the charging device to the vehicle. After the heating process is completed, the discharge circuit is used to discharge the remaining power, thereby improving the safety and reliability of the charging device.

[0038] In some embodiments, the control method further includes: receiving second vehicle status information, the second vehicle status information being used to indicate that the vehicle is in a charge-ready state, and when the vehicle allows charging, sending the second status information to a charging device so that the charging device can start charging the power battery.

[0039] In some embodiments, the charging device includes a second switch module, which is used to electrically connect the charging device to the power device. Electrically connecting the charging device to the power device includes turning on the second switch module. The second switch module is provided within the charging device to control the electrical connection between the charging device and the power battery.

[0040] An embodiment of the third aspect of the present application provides a control device for a vehicle, wherein the vehicle includes a power battery and an electrical device, and the control device includes: a first module for controlling the electrical connection between the electrical device and the charging device when the vehicle is physically connected to the charging device, so that the charging device supplies power to the electrical device; and a second module for controlling the electrical connection between the power battery and the charging device to be disconnected when the vehicle is physically connected to the charging device.

[0041] An embodiment of the fourth aspect of the present application provides a control device for a charging device, wherein the charging device is used to charge a vehicle, the vehicle including a power battery and an electrical device, and the control device includes: a third module for receiving third status information of the vehicle, the third status information of the vehicle being used to indicate that the vehicle is in a heating-ready state; a fourth module for electrically connecting the charging device to the electrical device and sending second status information of the charging device to the vehicle, the second status information of the charging device being used to indicate that the charging device is in a heating-ready state.

[0042] In a fifth aspect, an embodiment of the present application provides a computing device comprising at least one processor and at least one memory communicatively coupled to the at least one processor. The at least one memory stores instructions that, when executed individually or collectively by the at least one processor, cause the computing device to perform the method described in the above embodiment.

[0043] An embodiment of the sixth aspect of the present application provides a vehicle, comprising: a power battery and an electrical device, and a control device of the vehicle as in the above embodiment or a computing device as in the above embodiment.

[0044] An embodiment of the seventh aspect of the present application provides a charging device for charging a vehicle, the vehicle including a power battery and an electrical device, the charging device including: a control device of the charging device as in the above embodiment or a computing device as in the above embodiment.

[0045] An embodiment of the eighth aspect of the present application provides a computer-readable storage medium storing instructions, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to execute a method as described in the above embodiments.

[0046] An embodiment of the ninth aspect of the present application provides a computer program product, comprising instructions, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to perform a method as in the above embodiments.

[0047] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0049] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0050] FIG1 is an exemplary block diagram of the connection relationship between a charging device and a vehicle in some embodiments of the present application;

[0051] FIG2 is a flow chart of a vehicle control method according to some embodiments of the present application;

[0052] FIG3 is a flowchart illustrating a handshake process between a vehicle and a charging device according to some embodiments of the present application;

[0053] FIG4 is a schematic diagram of a process for starting charging after heating is completed in some embodiments of the present application;

[0054] FIG5 is a flow chart of a control method for a charging device according to some embodiments of the present application;

[0055] FIG6 is a flow chart of a method for controlling a charging device according to some embodiments of the present application;

[0056] FIG7 is a flow chart of a method for controlling a charging device according to some embodiments of the present application;

[0057] FIG8 is a flow chart of a method for controlling a charging device according to some embodiments of the present application;

[0058] FIG9 is an exemplary block diagram of a control device of a vehicle according to some embodiments of the present application;

[0059] FIG10 is an exemplary block diagram of a control device for a charging device according to some embodiments of the present application;

[0060] FIG11 is a block diagram of an exemplary computing device that can be used with exemplary embodiments;

[0061] FIG12 is a flow chart of the interaction process between a vehicle and a charging device in some embodiments of the present application. DETAILED DESCRIPTION

[0062] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0064] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0065] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0066] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0067] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0068] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0069] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0070] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0071] Electric vehicles are equipped with numerous electrical devices. These devices are typically powered by the vehicle's power battery. When the power battery is low, it can be recharged using charging equipment such as charging stations. However, once connected to the vehicle, the charging equipment typically only charges the vehicle's power battery and does not provide power to the vehicle's electrical devices. This limits the application scenarios of the charging equipment and prevents flexible utilization of its power source.

[0072] Therefore, a control method is needed to enable the charging device to supply power to the electrical devices in the vehicle before charging the power battery, thereby expanding the application scenarios of the charging device.

[0073] The control method disclosed in the embodiment of the present application can be used, but is not limited to, in the charging process of vehicles, ships, or aircraft. According to the control method disclosed in the embodiment of the present application, the charging device can supply power to the electrical equipment in the charged object (e.g., vehicle) before charging.

[0074] Figure 1 is an exemplary block diagram of the connection relationship between the charging device and the vehicle in some embodiments of the present application. In the following description of more embodiments, for the convenience of explanation, the description will be combined with Figure 1.

[0075] This embodiment of the present application provides a vehicle control method 200. The vehicle includes a power battery and an electrical device. Referring to FIG. 2 , the control method 200 includes:

[0076] With the vehicle physically connected to the charging equipment:

[0077] Step 210: Control the electrical connection between the power-consuming device and the charging device so that the charging device supplies power to the power-consuming device.

[0078] Step 220: Control the electrical connection between the power battery and the charging device to be disconnected.

[0079] In this document, the term "charging device" may include an off-board conductive charger (hereinafter referred to as an off-board charger or charger). The phrase "physically connecting the vehicle to the charging device" may refer to inserting the vehicle plug of the charging device into the vehicle socket of the vehicle.

[0080] It should be understood that a physical connection between the vehicle and the charging device does not necessarily mean an electrical connection between the power battery and the charging device. In some embodiments, as shown in Figure 1, switches K5 and K6 are provided on the vehicle side, and switches K1 and K2 are provided on the charging device side. After the vehicle plug is inserted into the vehicle socket, switches K1, K2 and K5, K6 are closed, and the power battery and the charging device are electrically connected. Switches K12 and K13 are also provided on the vehicle side. When switches K12 and K13 are closed, the power device and the charging device are electrically connected.

[0081] If, under certain circumstances (e.g., low temperatures), the power battery's state prevents charging, switches K12 and K13 can be closed to electrically connect the vehicle's electrical devices to the charger, allowing the charger to supply power to the devices. Furthermore, switches K5 and / or K6 can be opened to disconnect the power battery from the charger, preventing the charger from charging the power battery.

[0082] By electrically connecting the charging device to the electrical equipment in the vehicle while the charging device is physically connected to the vehicle, and disconnecting the electrical connection between the charging device and the power battery, the charging device can supply power to the electrical equipment before charging the power battery, thereby expanding the application scenarios of the charging device and enabling flexible use of the electric energy of the charging device.

[0083] In certain application scenarios, this provides additional benefits. For example, when the power battery's state does not allow charging (e.g., the temperature is too low), some additional operations (e.g., electrical heating) may be required to enable the power battery to meet charging conditions. These additional operations may cause current or voltage fluctuations in the charging circuit, thereby damaging the charging equipment or even the power grid. By disconnecting the electrical connection between the power battery and the charging equipment, these additional operations (e.g., electrical heating) can be completed while maintaining the physical connection between the vehicle and the charging equipment without damaging the charging equipment.

[0084] According to some embodiments of the present application, the vehicle further includes a bypass module, which is used to connect or disconnect the electrical device from the charging device.

[0085] In this document, the term "bypass module" refers to a device that can control the on / off of the electrical connection between the power-consuming device and the charging device. When the bypass module is turned on, the power-consuming device is electrically connected to the charging device, and the charging device then supplies power to the power-consuming device.

[0086] In some embodiments, the bypass module can take the form of a bypass circuit. There is at least one electrical connection point between the vehicle interface and switches K5 and K6, which connects to the vehicle-side switches to form a bypass circuit. In the example shown in Figure 1, the bypass circuit includes switches K12 and K13.

[0087] A bypass module is set up in the vehicle, and the bypass module is used to connect or disconnect the electrical device with the charging device. The charging device can supply power to the electrical device according to usage requirements. When the charging device does not need to supply power to the electrical device, the electrical connection between the charging device and the electrical device can be disconnected.

[0088] According to some embodiments of the present application, when the electric device is electrically connected to the charging device, the electrical connection between the electric device and the power battery is disconnected.

[0089] A circuit breaker is installed in the circuit between the electrical equipment and the power battery. When the vehicle is not connected to the charging equipment, the power battery powers the electrical equipment inside the vehicle. When the electrical equipment is electrically connected to the charging equipment, the circuit breaker disconnects the electrical connection between the electrical equipment and the power battery. At this time, the power battery stops supplying power to the electrical equipment, and the charging equipment provides power to the electrical equipment instead.

[0090] By disconnecting the electrical connection between the electrical equipment and the power battery, the charging device can independently supply power to the on-board electrical equipment, thereby isolating the power battery and the charging device circuits from each other and reducing the impact of the power battery heating process on the charging device.

[0091] According to some embodiments of the present application, step 220 includes:

[0092] When the electric device is electrically connected to the charging device, the electrical connection between the power battery and the charging device is controlled to be disconnected.

[0093] After the charger is plugged into the vehicle, the vehicle's power battery is electrically connected to the charger. At this point, the power battery can be considered a load on the charger. Control the electrical connection between the consumer and the charger. When the consumer is electrically connected, disconnect the power battery from the charger. At this point, the consumer can be considered a load on the charger.

[0094] In the example shown in FIG. 1 , when switches K12 and K13 are both closed, switches K5 and / or K6 are opened.

[0095] When the power-consuming device is electrically connected to the charging device, the electrical connection between the power battery and the charging device is disconnected, so that the charging device is always connected to the load and there is no no-load situation, which reduces damage to the charging device and improves the safety and reliability of the charging device.

[0096] According to some embodiments of the present application, the vehicle further includes an electric energy module. After step 220, the control method 200 further includes:

[0097] After controlling the electrical connection between the power battery and the charging device to be disconnected, the electric energy module applies current to the power battery to heat the power battery.

[0098] As used herein, the term "power module" refers to a module capable of applying a current across a battery, wherein applying a current to the battery may be a positive current and / or a negative current. In one example, the current may be in the form of a pulsed current.

[0099] When the air temperature is low, the power battery is too cold to charge. In this case, the power module can be used to heat the power battery. After disconnecting the electrical connection between the power battery and the charging device, the power module begins to apply current to the power battery. Due to the internal resistance of the power battery, when current flows through the power battery, it generates heat, which in turn heats the power battery.

[0100] The heating process of the power battery may cause large voltage fluctuations. If the electrical connection between the power battery and the charging device is not disconnected, it will cause a large impact on the charging device (for example, the recharge current of the power battery may cause the charging device to alarm abnormally). At this time, it is often necessary to disconnect the physical connection between the charging device and the vehicle (for example, unplug the vehicle plug of the charging device from the vehicle socket). After the heating is completed, when charging is carried out again, the charging device needs to be physically reconnected to the vehicle (for example, plug the vehicle plug of the charging device into the vehicle socket), which makes the operation cumbersome.

[0101] According to the embodiments of the present disclosure, after the power battery and the charging device are electrically disconnected, the power module applies current to the power battery. Since the heating circuits of the charging device and the power battery are now isolated from each other, the impact of the heating process on the charging device can be reduced. Furthermore, the physical connection between the charging device and the vehicle does not need to be disconnected during the heating process. This allows the battery to be heated before charging while maintaining the physical connection between the charging device and the vehicle, without having to wait for the battery to be heated before physically connecting the charging device to the vehicle for charging. This significantly reduces the complexity of the entire charging process.

[0102] According to some embodiments of the present application, the vehicle further includes a first switch module, the first switch module being used to electrically connect the power battery to the charging device, wherein step 220 includes: disconnecting the first switch module.

[0103] In the charging circuit from the charging device to the power battery, a first switch module is provided on the vehicle side. When the first switch module is disconnected, the electrical connection between the power battery and the charging device is disconnected.

[0104] By controlling the first switch module to be disconnected, it is possible to disconnect the electrical connection between the power battery and the charging device while maintaining the physical connection between the charging device and the vehicle.

[0105] According to some embodiments of the present application, the first switch module includes a first switch and a second switch, and the first switch and the second switch are electrically connected to the positive electrode and the negative electrode of the power battery, respectively. Step 220 includes: disconnecting at least one of the first switch and the second switch.

[0106] In the charging circuit from the charger to the power battery, a switch is provided at the positive and negative poles of the power battery, respectively. The on and off of these two switches can be controlled independently. In the example shown in Figure 1, the first switch module includes a first switch K5 and a second switch K6, which are electrically connected to the positive and negative poles of the power battery, respectively.

[0107] A switch is set at the positive and negative poles of the power battery respectively, which can be controlled separately. Only one of the switches needs to be disconnected to disconnect the electrical connection between the power battery and the charging device, which improves the safety of the charging system and makes the operation more convenient.

[0108] According to some embodiments of the present application, the vehicle further includes an on-board insulation detection device, and during the electrical connection between the electrical device and the charging device, the electrical connection between the on-board insulation detection device and the power supply circuit of the charging device supplying power to the electrical device is disconnected.

[0109] In this article, the term "vehicle insulation monitoring device" refers to a device installed on the vehicle with insulation monitoring capabilities. When the consumer is electrically connected to the charger, the power module may heat the power battery. Therefore, the vehicle insulation monitoring device needs to be disconnected from the power supply circuit. In this case, the charger performs insulation monitoring.

[0110] During the period when the charging device supplies power to the electrical device, the vehicle insulation detection device can cut off the power supply circuit to avoid interfering with the power supply from the charging device to the electrical device.

[0111] According to some embodiments of the present application, step 210 includes:

[0112] In response to the external voltage of the first switch module being less than the first voltage threshold, the electric device is electrically connected to the charging device through the bypass module.

[0113] In this document, for a vehicle-side switch module, the term "outside" refers to the end of the switch module electrically remote from the power battery, and the term "outside voltage" refers to the voltage at the end of the switch module electrically remote from the power battery. For a charging device-side switch module, the term "outside" refers to the end of the switch module electrically remote from the charging power source, and the term "outside voltage" refers to the voltage at the end of the switch module electrically remote from the charging power source. In the example shown in Figure 1, when the outside voltage of switches K5 and K6 is less than a first voltage threshold, the electric device is electrically connected to the charging device by closing switches K12 and K13.

[0114] Only when the external voltage of the first switch module is lower than the first voltage threshold is the electrical device electrically connected to the charging device through the bypass module, thereby reducing the risk of vehicle failure due to excessively high external voltage and improving operational reliability and safety.

[0115] According to some embodiments of the present application, the first voltage threshold is 60V.

[0116] Using 60V as the voltage threshold can ensure that the current flowing through the human body does not exceed the allowable safety current when the human body accidentally touches the device, thereby improving the safety of the operation.

[0117] According to some embodiments of the present application, before step 210, the control method 200 further includes a process 300. Referring to FIG. 3 , the process 300 includes:

[0118] Step 310: Before controlling the electrical connection between the electric device and the charging device, first charging device status information is received from the charging device.

[0119] Step 320 : In response to receiving the first status information of the charging device, sending the first status information of the vehicle to the charging device.

[0120] Before the charging device is electrically connected to the power-consuming device, the charging device sends the first status information of the charging device to the vehicle. In one example, after receiving the first status information of the charging device, the vehicle periodically sends the first status information of the vehicle to the charging device.

[0121] Before controlling the electrical connection between the power-consuming device and the charging device, the vehicle and the charging device send communication handshake messages to each other. After confirming that the status of the vehicle and the charging device are normal, the power battery and the charging device are electrically connected to improve the reliability of the power supply process.

[0122] According to some embodiments of the present application, after step 220, the control method 200 further includes a process 400. Referring to FIG. 4 , the process 400 includes:

[0123] Step 410 : After controlling the electrical connection between the power battery and the charging device to be disconnected, controlling the power battery to be electrically connected to the charging device.

[0124] Step 420: Charge the power battery using a charging device.

[0125] When the power battery is not ready for charging, the electrical connection between the power battery and the charging device needs to be disconnected and the power battery needs to be heated. After heating is complete, when the power battery is ready for charging, the electrical connection between the power battery and the charging device is restored. In the example shown in Figure 1, when the power battery is ready for charging, switches K5 and K6 are closed to establish an electrical connection between the power battery and the charging device, at which point the charging device can begin charging the power battery.

[0126] During the power battery heating process, the electrical connection between the power battery and the charging device is disconnected, and the electrical connection between the power battery and the charging device is restored after the heating is completed. This allows the battery to be charged after the battery heating is completed without disconnecting the physical connection between the charging device and the vehicle (for example, without unplugging the vehicle plug of the charging device from the vehicle socket), thereby greatly reducing the complexity of the entire charging process.

[0127] According to some embodiments of the present application, the control method 200 further includes:

[0128] In response to the heating stop instruction, the electric energy module stops applying current to the power battery.

[0129] When the power battery needs to be heated, the power module applies current to the power battery to heat it. When heating is complete, the power module stops applying current to the power battery.

[0130] When the vehicle or charging equipment reports that heating of the power battery has stopped, the electric energy module stops applying current to the power battery to stop heating the power battery, thereby entering the next operation stage (for example, pre-charging or energy transfer) as soon as possible and improving operating efficiency.

[0131] According to some embodiments of the present application, the control method 200 further includes:

[0132] After the electric energy module stops applying current to the power battery, the second state information of the vehicle is sent to the charging device.

[0133] When the power battery is heated, the second vehicle status information is sent to the charging device. In one example, the second vehicle status information may indicate that heating is complete and the vehicle is ready to proceed to the next stage. In some embodiments, the next stage may be a pre-charging stage.

[0134] Information indicating the vehicle status is sent to the charging device so that the charging device can enter the next phase after the heating phase.

[0135] According to some embodiments of the present application, the electric energy module includes at least one of an energy storage module and a motor electronic control module.

[0136] The power module can be a separate energy storage module or the vehicle's motor control module. In some embodiments, the motor control module can include a single electric drive or dual electric drives to generate current. Other current-generating modules can also be used to heat the power battery, without limitation.

[0137] The power module can be selected according to the usage environment to improve adaptability to different usage scenarios of different vehicles.

[0138] According to some embodiments of the present application, the bypass module includes at least one of a switch and a wire.

[0139] In some embodiments, the bypass module can take the form of a bypass circuit. There is at least one electrical connection point between the vehicle interface and switches K5 and K6, which connects to the vehicle-side switch to form a bypass circuit. The bypass module can include a switch, a combination of a switch and wires, or a single wire that works in conjunction with other switches to control the electrical connection between the power-consuming device and the charger. In the example shown in Figure 1, the bypass module includes switches K12 and K13.

[0140] The form of the bypass module can be set according to the usage environment, which improves the adaptability to different vehicles.

[0141] According to some embodiments of the present application, the bypass module includes any one of the following:

[0142] a third switch for electrically connecting to the positive terminal of the charging device and a fourth switch for electrically connecting to the negative terminal of the charging device;

[0143] a fifth switch for electrically connecting to the positive terminal of the charging device and a first conductive wire for electrically connecting to the negative terminal of the charging device;

[0144] a second conductive wire for electrically connecting to the positive terminal of the charging device and a sixth switch for electrically connecting to the negative terminal of the charging device;

[0145] a seventh switch for electrically connecting to the positive terminal of the charging device;

[0146] an eighth switch for being electrically connected to the negative terminal of the charging device;

[0147] a third wire for electrically connecting to the positive terminal of the charging device;

[0148] A fourth wire is used for electrical connection to the negative terminal of the charging device.

[0149] The bypass module can be two switches electrically connected to the positive and negative poles of the electrical device respectively, or a switch and a wire, or a wire that cooperates with other switches to control the on and off of the electrical connection between the electrical device and the charging device.

[0150] According to some embodiments of the present application, the electric device includes at least one of the following: an air-conditioning compressor, a power converter, a heating film, a heat pump, and a positive temperature coefficient thermistor.

[0151] The electrical device includes various types of devices, such as air-conditioning compressors, power converters, heating films, heat pumps, and positive temperature coefficient thermistors, etc., which are not limited here.

[0152] The charging device can supply power to the electrical devices in the vehicle that need power. In some cases (for example, the electrical device is a heating film, heat pump or positive temperature coefficient thermistor), the electrical device can also assist in heating the power battery, thereby shortening the heating time.

[0153] An embodiment of the present application provides a control method 500 for a charging device. The charging device is used to charge a vehicle. The vehicle includes a power battery. Referring to FIG. 5 , the control method 500 includes:

[0154] Step 510: Receive third vehicle status information, where the third vehicle status information is used to indicate that the vehicle is in a heating-ready state.

[0155] Step 520 : electrically connect the charging device to the power-consuming device, and send second status information of the charging device to the vehicle. The second status information of the charging device is used to indicate that the charging device is in a heating-ready state.

[0156] In one example, the vehicle's third status information could be a "Vehicle Charging Self-Heating State_Ready" message, indicating that the vehicle is in the heating-ready state, allowing the power battery to be heated. Because the power battery is not allowed to charge before the energy transfer phase, power battery heating is required. When the vehicle determines that it is ready to enter heating mode, it sends the third vehicle status information to the charging device.

[0157] In one example, the second status information of the charging device may be a "charging device charging self-heating state_ready" message, which is used to indicate that the charging device is electrically connected to the power-consuming device and can transmit energy to the vehicle.

[0158] After receiving the third vehicle status information, the charging device is electrically connected to the power consumption device. In the example shown in Figure 1, after receiving the third vehicle status information, switches K1 and K2 are closed, so that the charging device is electrically connected to the power consumption device and the second charging device status information is sent to the vehicle.

[0159] After receiving the vehicle's readiness signal, the charger connects electrically to the consumer and sends a message to the vehicle indicating the charger's readiness. This communication between the charger and the vehicle confirms the status of both, expanding the charger's application scenarios and enabling flexible utilization of its electrical energy. It also allows for subsequent heating of the power battery.

[0160] According to some embodiments of the present application, the control method 500 further includes:

[0161] Before step 510 , first status information of the charging device is sent to the vehicle.

[0162] When the charging device is physically connected to the vehicle, the charging device initiates the heating process and sends the first status information of the charging device to the vehicle. In one example, the first status information of the charging device can be a "charging device charging self-heating state" message.

[0163] The charging device initiates the heating process and sends the first status information of the charging device to the vehicle, which can improve the safety and stability of the heating process.

[0164] According to some embodiments of the present application, after step 520, the control method 500 further includes a process 600. Referring to FIG. 6 , the process 600 includes:

[0165] Step 610: Receive vehicle fourth state information, where the vehicle fourth state information is used to indicate the power supply demand of the vehicle.

[0166] Step 620: In response to receiving the fourth status information of the vehicle, stop sending the first status information of the charging device to the vehicle.

[0167] In one example, the fourth state information of the vehicle may be a "vehicle power supply requirement" message. After the charging device receives the fourth state information of the vehicle, it stops sending the first state information of the charging device to the vehicle.

[0168] During the heating phase, the charging device and the vehicle exchange data, and the charging device outputs energy according to the vehicle's power supply requirements, improving the reliability of the heating process.

[0169] According to some embodiments of the present application, the vehicle further includes an electrical device. After step 620 , the control method 500 further includes:

[0170] After stopping sending the first status information of the charging device to the vehicle, the third status information of the charging device and the fourth status information of the charging device are sent to the vehicle. The third status information of the charging device is used to indicate the output capacity of the charging device, and the fourth status information of the charging device is used to indicate the basic charging and heating information of the charging device.

[0171] In one example, the third status information of the charging device may be a "Charging Device Dynamic Output Capability" message, which indicates the output capacity of the charging device. In another example, the fourth status information of the charging device may be a "Charging Device Self-Heating Basic Information" message, which indicates basic information about the charging device during the heating phase.

[0172] Without disconnecting the physical connection between the charging device and the vehicle, the charging device simultaneously heats the power battery while supplying power to the vehicle's electrical devices. The charging device also provides feedback to the vehicle on its output capacity and basic heating process information, improving the reliability of the heating process.

[0173] According to some embodiments of the present application, the control method 500 further includes a process 700. Referring to FIG. 7 , the process 700 includes:

[0174] Step 710: Receive fifth vehicle status information, where the fifth vehicle status information is used to indicate that power battery heating is complete.

[0175] Step 720: In response to receiving the fifth vehicle status information, stop sending the third charging device status information to the vehicle.

[0176] In one example, the fifth vehicle status information could be a "Vehicle Charging Self-Heating Completed" message, indicating that the power battery has completed heating and is ready for charging. Upon receiving this information, the charging device stops sending the third status information and stops transmitting energy to the power consumer. In another example, the third status information could be a "Charging Device Dynamic Output Capacity" message, indicating the dynamic output capacity of the charging device.

[0177] After receiving the information indicating that the power battery heating is complete, the charging device stops sending the information indicating the output capacity of the charging device, stops outputting energy, and prepares to enter the next stage.

[0178] According to some embodiments of the present application, the control method 500 further includes:

[0179] Before receiving the fifth state information of the vehicle, the charging device outputs an output voltage of the vehicle power supply voltage requirement value.

[0180] By outputting a voltage based on the vehicle power supply voltage requirement value to meet the vehicle power supply requirement, the stability of the power supply process can be improved.

[0181] According to some embodiments of the present application, the control method 500 further includes:

[0182] Before receiving the fifth state information of the vehicle, the charging device outputs an output current that does not exceed the current maximum power supply current requirement value of the vehicle.

[0183] Ensuring that the output current of the charging device does not exceed the vehicle's current maximum power supply current requirement can improve the reliability of the power supply process.

[0184] According to some embodiments of the present application, the control method 500 further includes a process 800. Referring to FIG. 8 , the process 800 includes:

[0185] Step 810: After receiving the fifth state information of the vehicle, control the electrical connection between the charging device and the power-consuming device to be disconnected.

[0186] Step 820: Send the fifth status information of the charging device to the vehicle.

[0187] In the example shown in FIG. 1 , after receiving the fifth vehicle state information, the switches K1 and K2 are opened to disconnect the electrical connection between the charging device and the power-consuming device.

[0188] In an example, the fifth status information of the charging device may be a "DC power supply circuit switch status" message, which is used to indicate whether the switch on the charging device side is closed or open.

[0189] After receiving the vehicle's fifth status information indicating that the power battery heating is completed, the electrical connection between the charging device and the power-consuming device is disconnected, and the charging device's fifth status information indicating that the electrical connection between the charging device and the power-consuming device is disconnected is sent to the vehicle, and the vehicle is ready to enter the next stage.

[0190] According to some embodiments of the present application, the control method 500 further includes:

[0191] Monitor the insulation resistance between the power supply circuit used by the charging equipment to supply power to the power-consuming equipment and the equipment ground.

[0192] Since the vehicle insulation monitoring device cuts off the power supply circuit, the charging equipment insulation monitoring device is required to monitor the insulation resistance between the power supply circuit used by the charging equipment to supply power to the electrical equipment and the equipment ground.

[0193] The use of charging equipment to monitor the insulation resistance between the power supply circuit and the equipment ground improves the safety of the power supply process.

[0194] According to some embodiments of the present application, the charging device further includes a discharge circuit, and the control method 500 further includes:

[0195] Before sending the fifth state information of the charging device to the vehicle, the discharge circuit is controlled to perform discharge.

[0196] In the example of Figure 1, a discharge circuit (not shown in Figure 1) is used to discharge the charging device before the fifth status information is transmitted to the vehicle. In one example, when the output current of the charging device drops to a predetermined current value, switches K1 and K2 are disconnected, and the discharge circuit is activated for discharge. When the internal voltage of switches K1 and K2 drops below a predetermined voltage (e.g., 60V), the discharge circuit is disconnected from the DC charging circuit.

[0197] In the example of Figure 1, although not shown, the discharge circuit may include a discharge circuit connected across the inner side of switch K1 and the inner side of switch K2. In some embodiments, the discharge circuit may be provided externally to the charging device, for example, by providing an aluminum-cased resistor on the structure of the charging device as a discharge resistor. In some embodiments, the discharge circuit may also be provided internally to the charging device, for example, by providing a chip resistor as a discharge resistor. When the discharge circuit switch is closed, the output voltage of the charging device is rapidly reduced through the discharge resistor, and the voltage inside switches K1 and K2 can be reduced to below a predetermined voltage (for example, 60V) within a certain period of time (for example, 1s) after the discharge circuit switch is closed.

[0198] After the charging device stops outputting, a discharge circuit is used to discharge the remaining power, thereby improving the safety and reliability of the charging device.

[0199] According to some embodiments of the present application, the control method 500 further includes:

[0200] Receive vehicle second state information, where the vehicle second state information is used to indicate that the vehicle is in a charging ready state.

[0201] When the vehicle is allowed to be charged, the vehicle sends vehicle second state information to the charging device.

[0202] After the heating phase is over, the vehicle sends the second vehicle status information to the charging device indicating that the vehicle is in a charging ready state. At this time, the charging device can start charging the power battery, and the battery can be heated without disconnecting the physical connection between the charging device and the vehicle, and the battery can be charged after the heating is completed.

[0203] According to some embodiments of the present application, the charging device includes a second switch module, and the second switch module is used to electrically connect the charging device to the power-consuming device. Step 520 includes: turning on the second switch module.

[0204] In the example shown in Figure 1 , the second switch module includes switches K1 and K2. When the bypass modules K12 and K13 are closed, the charging device closes switches K1 and K2, and the charging device is electrically connected to the power-consuming device.

[0205] A second switch module is provided inside the charging device, which can control the on / off of the electrical connection between the charging device and the power-consuming device on the charging device side.

[0206] An embodiment of the present application provides a vehicle control device 900 . Referring to FIG. 9 , the control device 900 includes a first module 910 and a second module 920 .

[0207] The first module 910 is configured to control the electrical connection between the power-consuming device and the charging device when the vehicle is physically connected to the charging device, so that the charging device supplies power to the power-consuming device.

[0208] The second module 920 is used to control the disconnection of the electrical connection between the power battery and the charging device when the vehicle is physically connected to the charging device.

[0209] The first module 910 and the second module 920 in the control device 900 may correspond to steps 210 and 220 in the method 200 shown in FIG2 , respectively. For the sake of brevity, they are not described here in detail. It should be understood that, corresponding to the embodiment of the method 200 , the embodiment of the control device 900 may further include more modules.

[0210] The embodiment of the present application provides a control device 1000 for a charging device, as shown in FIG10 . The control device 1000 includes a third module 1010 and a fourth module 1020 .

[0211] The third module 1010 is configured to receive third vehicle status information, where the third vehicle status information is used to indicate that the vehicle is in a heating-ready state.

[0212] The fourth module 1020 is configured to electrically connect the charging device to the power-consuming device and send second status information of the charging device to the vehicle, where the second status information of the charging device is used to indicate that the charging device is in a heating-ready state.

[0213] The third module 1010 and the fourth module 1020 in the control device 1000 of the charging device can correspond to steps 510 and 520 in the method 500 shown in Figure 5, respectively. For the sake of brevity, they are not further described here. It should be understood that corresponding to the embodiment of the method 500, the embodiment of the control device 1000 can also include more modules.

[0214] It should be noted that the functions of the various modules discussed herein can be divided into multiple modules, and / or at least some functions of multiple modules can be combined into a single module. The specific module discussed herein performing an action includes the specific module itself performing the action, or alternatively, the specific module calling or otherwise accessing another component or module that performs the action (or performs the action in conjunction with the specific module). Therefore, the specific module that performs an action can include the specific module itself that performs the action and / or another module that the specific module calls or otherwise accesses to perform the action.

[0215] It should also be understood that various technologies can be described herein in the general context of software hardware elements or program modules. The above modules described about Figures 9 and 10 can be implemented in hardware or in the hardware in conjunction with software and / or firmware. For example, these modules can be implemented as computer program code / instructions, which are configured to be executed in one or more processors and stored in a computer-readable storage medium. Alternatively, these modules can be implemented as hardware logic / circuits. Hardware logic / circuits can include integrated circuit chips (which include processors (for example, central processing unit (Central Processing Unit, CPU), microcontroller, microprocessor, digital signal processor (Digital Signal Processor, DSP) etc.), memory, one or more communication interfaces, and / or one or more components in other circuits), and can perform received program code and / or include embedded firmware to perform functions in some embodiments.

[0216] An embodiment of the present application provides a computing device 1100, as shown in FIG11 . FIG11 illustrates an example configuration of a computing device 1100 that can be used to implement the methods described herein. For example, the aforementioned vehicle control device 900 and charging device control device 1000 can be implemented in whole or in part by computing device 1100 or a similar device or system.

[0217] The computing device 1100 may include at least one processor 1105, memory 1107, communication interface(s) 1102, a display device 1101, other input / output (I / O) devices 1103, and one or more mass storage devices 1106, all capable of communicating with one another, such as via a system bus 1104 or other appropriate connections. The memory 1107 may store instructions that, when executed by the processor 1105, cause the processor 1105 to perform methods such as those described in the above embodiments.

[0218] The computing device 1100 can be a variety of different types of devices. Examples of the computing device 1100 include, but are not limited to, a desktop computer, a server computer, a laptop or netbook computer, a mobile device (e.g., a tablet computer, a cellular or other wireless phone (e.g., a smartphone), a notepad computer, a mobile station), a wearable device (e.g., eyeglasses, a watch), an entertainment device (e.g., an entertainment appliance, a set-top box communicatively coupled to a display device, a game console), a television or other display device, an automobile computer, and the like.

[0219] The processor 1105 may be a single processing unit or multiple processing units, all of which may include a single or multiple computing units or multiple cores. The processor 1105 may be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, state machines, logic circuits, and / or any device that manipulates signals based on operational instructions. Among other capabilities, the processor 1105 may be configured to retrieve and execute computer-readable instructions stored in the memory 1107, mass storage device 1106, or other computer-readable media, such as program code for an operating system 1108, program code for application programs 1109, program code for other programs 1110, and the like.

[0220] Memory 1107 and mass storage device 1106 are examples of computer-readable storage media for storing instructions that are executed by processor 1105 to implement the various functions described above. For example, memory 1107 may generally include both volatile memory and non-volatile memory (e.g., RAM, ROM, etc.). In addition, mass storage device 1106 may generally include a hard drive, a solid-state drive, removable media, including external and removable drives, memory cards, flash memory, floppy disks, optical disks (e.g., CDs, DVDs), storage arrays, network attached storage, storage area networks, etc. Memory 1107 and mass storage device 1106 may be collectively referred to herein as memory or computer-readable storage media, and may be non-transitory media capable of storing computer-readable, processor-executable program instructions as computer program code, which may be executed by processor 1105 as a specific machine configured to implement the operations and functions described in the examples herein.

[0221] A plurality of programs may be stored on the mass storage device 1106. These programs include an operating system 1108, one or more application programs 1109, other programs 1110, and program data 1111, and may be loaded into the memory 1107 for execution. Examples of such application programs or program modules may include, for example, computer program logic (e.g., computer program code or instructions) for implementing the following components / functions: the vehicle control device 900 (including the first module 910 and the second module 920), the charging device control device 1000 (including the third module 1010 and the fourth module 1020), the method 200 and / or the method 500 (including any suitable steps of the methods 200 and 500), and / or other embodiments described herein.

[0222] Although illustrated in FIG. 11 as being stored in memory 1107 of computing device 1100 , operating system 1108 , application programs 1109 , other programs 1110 , and program data 1111 , or portions thereof, may be implemented using any form of computer-readable media accessible by computing device 1100 .

[0223] One or more communication interfaces 1102 are used to exchange data with other devices, such as via a network, direct connection, and the like. Such communication interfaces can be one or more of the following: any type of network interface (e.g., a network interface card (NIC)), a wired or wireless wireless interface (such as an IEEE 802.11 wireless LAN (WLAN)), a Worldwide Interoperability for Microwave Access (Wi-MAX) interface, an Ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a Bluetooth™ interface, a Near Field Communication (NFC) interface, and the like. The communication interface 1102 can facilitate communication within a variety of network and protocol types, including wired networks (e.g., LAN, cable, and the like) and wireless networks (e.g., WLAN, cellular, satellite, and the like), the Internet, and the like. The communication interface 1102 can also provide communication with external storage devices (not shown), such as storage arrays, network attached storage, storage area networks, and the like.

[0224] In some examples, a display device 1101 such as a monitor may be included for displaying information and images to the user. Other I / O devices 1103 may be devices that receive various inputs from the user and provide various outputs to the user, and may include a touch input device, a gesture input device, a camera, a keyboard, a remote control, a mouse, a printer, an audio input / output device, and the like.

[0225] The technology described herein can be supported by these various configurations of the computing device 1100 and is not limited to the examples of the technology described herein. For example, the functionality can also be implemented in whole or in part on a "cloud" by using a distributed system. The cloud includes and / or represents a platform for resources. The platform abstracts the underlying functionality of the hardware (e.g., servers) and software resources of the cloud. Resources can include applications and / or data that can be used when performing computing processing on a server away from the computing device 1100. Resources can also include services provided over the Internet and / or through a subscriber network such as a cellular or Wi-Fi network. The platform can abstract resources and functionality to connect the computing device 1100 to other computing devices. Therefore, the implementation of the functionality described herein can be distributed throughout the cloud. For example, functionality can be implemented partially on the computing device 1100 and partially through a platform that abstracts the functionality of the cloud.

[0226] An embodiment of the present application further provides a vehicle, including: a power battery and an electrical device, and a control device 900 as in the above embodiment or a computing device 1100 as in the above embodiment.

[0227] In some embodiments, the vehicle is a new energy vehicle, which can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. The vehicle is equipped with a power battery and electrical equipment, as well as a control device 900 or a computing device 1100 as described in the above embodiments. For the sake of brevity, these details are not further described here.

[0228] An embodiment of the present application further provides a charging device for charging a vehicle, wherein the vehicle includes a power battery and an electrical device, and the charging device includes: the control device 1000 as in the above embodiment or the computing device 1100 as in the above embodiment.

[0229] In some embodiments, the charging device may include an off-board conductive charger. The charging device includes the control device 1000 or the computing device 1100 in the above embodiments. For the sake of brevity, no further details are given here.

[0230] An embodiment of the present application further provides a computer-readable storage medium having instructions stored thereon. When the instructions are executed by a processor, the processor executes the method in any of the above embodiments.

[0231] Computer-readable storage media includes volatile and nonvolatile, removable and non-removable media implemented by any method or technology for storage of information, such as computer-readable instructions, data structures, program modules, or other data. Computer-readable storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVDs), or other optical storage devices, magnetic cassettes, magnetic tape, magnetic disk storage devices or other magnetic storage devices, or any other non-transmission media that can be used to store information for access by a computing device.

[0232] An embodiment of the present application further provides a computer program product, comprising instructions, which, when executed by a processor, causes the processor to execute a method as described in any of the above embodiments.

[0233] A specific embodiment of the present application is described below. It should be understood that this specific embodiment is described for illustrative purposes only and should not be construed as limiting the present application.

[0234] As shown in Figures 1 and 12, when the vehicle connector is inserted into the vehicle socket, the charging device and the vehicle each confirm the charging self-heating stage. After successful confirmation, the charging device initiates the charging self-heating process and periodically sends the first status information of the charging device to the vehicle.

[0235] After receiving the first status information from the charging device, the vehicle periodically sends the first status information to the charging device. The external voltage of switches K5 and K6 is detected. When the external voltage is less than 60V, switches K12 and K13 of the bypass module are closed to electrically connect the electrical device to the charging device. The electrical device can be a heating device such as an air conditioning compressor, power converter, heating film, heat pump, or positive temperature coefficient thermistor to assist in heating the battery, thereby shortening the battery heating time. After closing switches K12 and K13, the power module is connected to the high voltage of the power battery. When the power module switch successfully reaches high voltage, the vehicle's third status information is sent, indicating that the vehicle is in the heating ready state and allowing the power battery to be heated.

[0236] After receiving the vehicle's third status information, the charging device detects the voltage outside switches K1 and K2. When the voltage is less than 60V, switches K1 and K2 are closed, establishing an electrical connection between the charging device and the power consumer. The charging device then sends the vehicle its second status information, indicating that the charging device is in the heating-ready state. The charging device is now electrically connected to the power consumer and can transfer energy to the vehicle.

[0237] After receiving the second state information from the charging device, the vehicle stops sending the first state information of the vehicle and periodically sends the fourth state information of the vehicle to the charging device to indicate the power supply demand of the vehicle.

[0238] After receiving the fourth status information of the vehicle, the charging device stops sending the first status information of the charging device to the vehicle, and periodically sends the third status information of the charging device indicating the output capacity of the charging device and the fourth status information of the charging device indicating the basic charging and heating information of the charging device to the vehicle.

[0239] The vehicle disconnects switches K5 and / or K6 to disconnect the power battery from the charging device, and disconnect the power battery from the electrical device. Use the electric energy module to apply current to the power battery to heat the power battery. At this time, the power battery is not connected to the charging device, but is connected to the electric energy module. The electric energy module applies positive or negative current on both sides of the power battery to quickly heat the battery through the internal resistance of the battery. Among them, the electric energy module can be a separate energy storage module, or the motor control module of the whole vehicle can be used as the electric energy module. In some embodiments, the motor control module can include a single electric drive to generate current or a dual electric drive to generate current. In addition, other modules that generate current can also be used to heat the power battery.

[0240] The charging device outputs energy to the vehicle to supply power to the electrical devices in the vehicle. At this time, since the power battery is not electrically connected to the charging device, the charging device does not charge the power battery.

[0241] When self-heating is determined to be complete, the power module stops supplying current to the power battery and disconnects the electrical connection between the power module and the power battery. The voltage across the power module is tested. When it falls below 60V, the vehicle stops sending the fourth vehicle status information to the charging device, opens switches K12 and K13, and sends the fifth vehicle status information to the charging device, indicating that power battery heating is complete.

[0242] After receiving the vehicle's fifth status information, the charging device stops sending the third status information and stops outputting energy. After stopping output, the charging device detects the charging current. When the charging current is less than or equal to 5A, it disconnects switches K1 and K2 and controls the discharge circuit to discharge the current. The fifth status information is sent to the vehicle, instructing switches K1 and K2 to disconnect.

[0243] The charging equipment and the vehicle confirm the stages respectively. When it is determined that the charging self-heating mode stage is over, the next stage is entered, which may be a pre-charging stage.

[0244] The charging device receives the vehicle second state information indicating that the vehicle is in a charging ready state, and charges the power battery.

[0245] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A control method for a vehicle, the vehicle comprising a power battery and an electrical device, the control method comprising: With the vehicle physically connected to the charging device: Controlling the electrical connection between the power-consuming device and the charging device so that the charging device supplies power to the power-consuming device; Controlling the disconnection of the electrical connection between the power battery and the charging device.

2. The control method according to claim 1, wherein: The vehicle further includes a bypass module, which is used to connect or disconnect the electrical device from the charging device.

3. The control method according to claim 1 or 2, wherein: When the electric device is electrically connected to the charging device, the electrical connection between the electric device and the power battery is disconnected.

4. The control method according to any one of claims 1 to 3, wherein: The controlling the disconnection of the electrical connection between the power battery and the charging device comprises: When the electric device is electrically connected to the charging device, the electrical connection between the power battery and the charging device is controlled to be disconnected.

5. The control method according to any one of claims 1 to 4, wherein: The vehicle further includes an electric energy module, and the control method further includes: After controlling the electrical connection between the power battery and the charging device to be disconnected, the electric energy module applies current to the power battery to heat the power battery.

6. The control method according to any one of claims 1 to 5, wherein: The vehicle further includes a first switch module, the first switch module being used to electrically connect the power battery to the charging device, wherein controlling the electrical connection between the power battery and the charging device to be disconnected includes: The first switch module is disconnected.

7. The control method according to claim 6, wherein: The first switch module includes a first switch and a second switch, wherein the first switch and the second switch are electrically connected to the positive electrode and the negative electrode of the power battery respectively, wherein the controlling the electrical connection between the power battery and the charging device to be disconnected includes: At least one of the first switch and the second switch is opened.

8. The control method according to any one of claims 1 to 7, wherein: The vehicle further includes an on-board insulation detection device, and during the electrical connection between the electrical device and the charging device, the electrical connection between the on-board insulation detection device and a power supply circuit through which the charging device supplies power to the electrical device is disconnected.

9. The control method according to any one of claims 6 to 8, wherein: The controlling the electrical connection between the electrical device and the charging device comprises: In response to the external voltage of the first switch module being less than a first voltage threshold, the power-consuming device is electrically connected to the charging device through the bypass module.

10. The control method according to claim 9, wherein: The first voltage threshold is 60V.

11. The control method according to any one of claims 1 to 10, further comprising: Before controlling the electrical connection between the electrical device and the charging device, receiving first status information of the charging device from the charging device; In response to receiving the first status information of the charging device, sending the first status information of the vehicle to the charging device.

12. The control method according to any one of claims 1 to 11, further comprising: After controlling the electrical connection between the power battery and the charging device to be disconnected, controlling the power battery to be electrically connected to the charging device; The power battery is charged using the charging device.

13. The control method according to any one of claims 5 to 12, further comprising: In response to a heating stop instruction, the electric energy module stops applying the current to the power battery.

14. The control method according to claim 13, further comprising: After causing the electric energy module to stop applying the current to the power battery, second vehicle status information is sent to the charging device.

15. The control method according to any one of claims 5 to 14, wherein: The electric energy module includes at least one of an energy storage module and a motor electronic control module.

16. The control method according to any one of claims 2 to 15, wherein: The bypass module includes at least one of a switch and a wire.

17. The control method according to claim 16, wherein: The bypass module includes any one of the following: a third switch for electrically connecting to the positive electrode of the charging device and a fourth switch for electrically connecting to the negative electrode of the charging device; a fifth switch for electrically connecting to the positive electrode of the charging device and a first wire for electrically connecting to the negative electrode of the charging device; a second conductive wire for electrically connecting to the positive electrode of the charging device and a sixth switch for electrically connecting to the negative electrode of the charging device; a seventh switch for being electrically connected to the positive electrode of the charging device; an eighth switch for being electrically connected to the negative electrode of the charging device; a third wire for electrically connecting to the positive electrode of the charging device; A fourth wire is used for being electrically connected to the negative electrode of the charging device.

18. The control method according to any one of claims 1 to 17, wherein: The electric device includes at least one of the following items: an air-conditioning compressor, a power converter, a heating film, a heat pump, and a positive temperature coefficient thermistor.

19. A control method for a charging device, wherein the charging device is used to charge a vehicle, wherein the vehicle comprises a power battery and an electrical device, the control method comprising: receiving third vehicle status information, wherein the third vehicle status information is used to indicate that the vehicle is in a heating ready state; The charging device is electrically connected to the electrical device, and second status information of the charging device is sent to the vehicle, where the second status information of the charging device is used to indicate that the charging device is in a heating-ready state.

20. The control method according to claim 19, further comprising: Before receiving the third status information of the vehicle, first status information of the charging device is sent to the vehicle.

21. The control method according to claim 20, further comprising: Receiving fourth state information of the vehicle, wherein the fourth state information of the vehicle is used to indicate a power supply demand of the vehicle; In response to receiving the fourth status information of the vehicle, stopping sending the first status information of the charging device to the vehicle.

22. The control method according to claim 21, wherein: The control method further comprises: After stopping sending the first status information of the charging device to the vehicle, third status information of the charging device and fourth status information of the charging device are sent to the vehicle, the third status information of the charging device is used to indicate the output capacity of the charging device, and the fourth status information of the charging device is used to indicate basic information of charging and heating of the charging device.

23. The control method according to claim 22, further comprising: Receiving fifth vehicle status information, where the fifth vehicle status information is used to indicate that heating of the power battery is completed; In response to receiving the fifth state information of the vehicle, stopping sending the third state information of the charging device to the vehicle.

24. The control method according to claim 23, further comprising: Before receiving the fifth state information of the vehicle, the charging device outputs an output voltage of a vehicle power supply voltage requirement value.

25. The control method according to claim 23 or 24, further comprising: Before receiving the fifth state information of the vehicle, the charging device outputs an output current that does not exceed a current maximum power supply current requirement value of the vehicle.

26. The control method according to any one of claims 23 to 25, further comprising: After receiving the fifth state information of the vehicle, controlling the electrical connection between the charging device and the electrical device to be disconnected; Sending fifth status information of the charging device to the vehicle.

27. The control method according to any one of claims 19 to 26, further comprising: Monitor the insulation resistance between a power supply circuit through which the charging device supplies power to the power-consuming device and a device ground.

28. The control method according to claim 26 or 27, wherein the charging device further comprises a discharge circuit, and the control method further comprises: Before sending the fifth status information of the charging device to the vehicle, the discharge circuit is controlled to discharge.

29. The control method according to any one of claims 19 to 28, further comprising: The second vehicle status information is received, where the second vehicle status information is used to indicate that the vehicle is in a charging ready state.

30. The control method according to any one of claims 19 to 29, wherein: The charging device includes a second switch module, and the second switch module is used to electrically connect the charging device to the power-consuming device. The electrically connecting the charging device to the power-consuming device includes: The second switch module is turned on.

31. A control device for a vehicle, the vehicle comprising a power battery and an electrical device, the control device comprising: The first module is used to control the electrical connection between the power-consuming device and the charging device when the vehicle is physically connected to the charging device, so that the charging device supplies power to the power-consuming device; The second module is used to control the disconnection of the electrical connection between the power battery and the charging device when the vehicle is physically connected to the charging device.

32. A control device for a charging device, the charging device being used to charge a vehicle, the vehicle comprising a power battery and an electrical device, the control device comprising: A third module is used to receive third vehicle status information, where the third vehicle status information is used to indicate that the vehicle is in a heating ready state; The fourth module is used to electrically connect the charging device to the electrical device and send second status information of the charging device to the vehicle, wherein the second status information of the charging device is used to indicate that the charging device is in a heating-ready state.

33. A computing device comprising: at least one processor; as well as At least one memory communicatively connected to the at least one processor, the at least one memory storing instructions, which, when executed individually or collectively by the at least one processor, enable the computing device to execute the control method of any one of claims 1 to 18 and the control method of any one of claims 19 to 30.

34. A vehicle comprising: A power battery and an electrical device, and a control device as claimed in claim 31 or a computing device as claimed in claim 33.

35. A charging device for charging a vehicle, the vehicle comprising a power battery and an electrical device, the charging device comprising: A control device as claimed in claim 32 or a computing device as claimed in claim 33.

36. A computer-readable storage medium storing instructions, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to execute the control method of any one of claims 1 to 18 and the control method of any one of claims 19 to 30.

37. A computer program product comprising instructions, which, when executed individually or collectively by one or more processors of a computing device, cause the computing device to perform the control method of any one of claims 1 to 18 and the control method of any one of claims 19 to 30.

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