Charging control method and device of vehicle, vehicle and computer readable storage medium

Abstract

The invention discloses a vehicle charging control method and device, a vehicle and a computer readable storage medium, and the method comprises the steps: judging whether a primary vehicle and a secondary vehicle meet a first preset condition or not when a received instruction used for indicating the vehicle to enter a preset charging mode is valid, the first preset condition comprises that neither the primary vehicle nor the secondary vehicle has a fault, and if yes, the primary vehicle and the secondary vehicle enter the preset charging mode; the power battery of the primary vehicle and the power battery of the secondary vehicle are connected with the voltage converter; if yes, the vehicle is controlled to enter a preset charging mode, and the power battery of the child vehicle is controlled to charge the power battery of the mother vehicle through the voltage converter. In the vehicle transportation process, the mother vehicle is charged through the son vehicle, the endurance mileage of the mother vehicle can be prolonged, the requirement for parking and charging in the midway is avoided, the transportation time cost is reduced, the transportation efficiency is improved, meanwhile, the number of vehicles running in the vehicle transportation process can be reduced, and therefore the passing cost of the vehicles is reduced, and the purpose of saving the cost is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a charging control method, device, vehicle and computer-readable storage medium for a vehicle. Background Art

[0002] In the long-distance transportation industry, reducing operating costs and improving transportation efficiency are one of the main goals pursued by the current industry. However, in reality, after the vehicle completes the cargo transportation task, the vehicle needs to return to the departure place empty, which not only consumes a large amount of energy but also incurs additional expenses such as highway tolls. Especially for enterprises using new energy vehicles for transportation, it also increases the cost of electricity consumption.

[0003] In the prior art, most vehicles are charged by setting up a backup battery on the vehicle or by charging at charging stations along the way. However, setting up a backup battery increases various cost requirements of the vehicle, occupies the vehicle space, and reduces transportation efficiency. Charging at a charging station also increases the time cost of transportation and reduces transportation efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] For this reason, one object of the present invention is to provide a charging control method for a vehicle. During the transportation process of the vehicle, this method can extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve transportation efficiency, and at the same time, can reduce the number of vehicles running during the vehicle transportation process, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0006] For this reason, the second object of the present invention is to provide a charging control device for a vehicle.

[0007] For this reason, the third object of the present invention is to provide a vehicle.

[0008] For this reason, the fourth object of the present invention is to provide a computer-readable storage medium.

[0009] For this reason, the fifth object of the present invention is to provide a computer program product.

[0010] To achieve the above object, an embodiment of the first aspect of the present invention provides a charging control method for a vehicle. The vehicle includes a mother vehicle and a child vehicle. Both the mother vehicle and the child vehicle include a power battery. The child vehicle further includes a voltage converter. The power battery of the child vehicle can charge the power battery of the mother vehicle through the voltage converter. The method includes the following steps: When it is determined that the received instruction for instructing the vehicle to enter the preset charging mode is valid, it is judged whether the master vehicle and the slave vehicle meet the first preset condition, where the first preset condition includes: neither the master vehicle nor the slave vehicle has a fault, and the power batteries of the master vehicle and the slave vehicle are both in a connected state with the voltage converter; If so, the vehicle is controlled to enter the preset charging mode, so that in the preset charging mode, the power battery of the slave vehicle is controlled to charge the power battery of the master vehicle through the voltage converter.

[0011] According to the vehicle charging control method of the embodiment of the present invention, during the vehicle transportation process, when the vehicle receives a valid instruction for instructing to enter the preset charging mode and the vehicle meets the preset conditions, the slave vehicle of the vehicle can be controlled to charge the master vehicle, extending the endurance mileage of the master vehicle, avoiding the need for charging during the journey, reducing the time cost of transportation, improving the transportation efficiency. At the same time, the number of vehicles running during the return journey of the vehicle can be reduced, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost saving.

[0012] In addition, the vehicle charging control method according to the embodiment of the present invention may further have the following additional technical features: In some examples, controlling the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter includes: obtaining the target output power of the voltage converter; controlling the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter according to the target output power.

[0013] In some examples, obtaining the target output power of the voltage converter includes: obtaining the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle; determining the smaller value of the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle as the target output power.

[0014] In some examples, obtaining the requested power of the master vehicle includes: obtaining the remaining power, the maximum feedback power of the master vehicle, and the output power of the voltage converter; determining the requested power of the master vehicle according to the remaining power, the maximum feedback power, and the output power of the voltage converter of the master vehicle.

[0015] In some examples, the method for controlling the charging of a vehicle further includes: when any one of the second preset conditions is met, controlling the voltage converter to stop charging the power battery of the master vehicle, where the second preset conditions include: receiving an invalid instruction for indicating that the vehicle enters a preset charging mode, the remaining power of the slave vehicle being lower than a preset power threshold, the master vehicle detecting an external charging pile charging signal, the power battery of the master vehicle or the power battery of the slave vehicle not being in a connected state with the voltage converter, and there being a fault in the master vehicle or the slave vehicle.

[0016] In some examples, controlling the voltage converter to stop charging the power battery of the master vehicle includes: controlling the voltage converter to shut down and controlling the slave vehicle to power off, so as to stop charging the power battery of the master vehicle.

[0017] In some examples, after controlling the vehicle to enter the preset charging mode, it further includes: when it is determined that the driving function of the master vehicle is turned on, controlling the master vehicle to enter a driving state and controlling the slave vehicle to enter a stationary state.

[0018] To achieve the above object, an embodiment of the second aspect of the present invention provides a charging control device for a vehicle, where the vehicle includes a master vehicle and a slave vehicle, both the master vehicle and the slave vehicle include a power battery, the slave vehicle further includes a voltage converter, and the power battery of the slave vehicle can charge the power battery of the master vehicle through the voltage converter. The device includes: a judgment module, configured to judge whether the master vehicle and the slave vehicle meet a first preset condition when receiving a valid instruction for indicating that the vehicle enters a preset charging mode, where the first preset condition includes: there is no fault in both the master vehicle and the slave vehicle, and the power batteries of the master vehicle and the slave vehicle are both in a connected state with the voltage converter; a control module, configured to control the vehicle to enter the preset charging mode, so as to control the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter in the preset charging mode.

[0019] According to the charging control device for a vehicle of the present invention, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it is possible to control the slave vehicle of the vehicle to charge the master vehicle, extend the cruising range of the master vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency, and at the same time, reduce the number of vehicles in operation during the return journey of the vehicle, thereby reducing the tolls of the vehicle, and further achieving the purpose of cost savings.

[0020] To achieve the above object, an embodiment of the third aspect of the present invention provides a vehicle, comprising: the charging control device of the vehicle described in the embodiment of the second aspect above, or a processor, a memory, and a vehicle charging control program stored on the memory and executable on the processor, wherein when the vehicle charging control program is executed by the processor, it implements the vehicle charging control method according to any one of the embodiments of the first aspect above.

[0021] According to the vehicle of the embodiment of the present invention, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle transportation, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0022] A further embodiment of the present invention also discloses a computer-readable storage medium, on which a vehicle charging control program is stored. When the vehicle charging control program is executed by a processor, it implements the vehicle charging control method described in any one of the above embodiments of the present invention.

[0023] According to the computer-readable storage medium of the embodiment of the present invention, when the vehicle charging control program stored thereon is executed by a processor, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle transportation, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0024] A further embodiment of the present invention also discloses a computer program, which implements the vehicle charging control method described in any one of the above embodiments of the present invention when executed.

[0025] According to the computer program of the embodiment of the present invention, when the computer program is executed, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle transportation, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned by practice of the present invention. Brief Description of the Drawings

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of embodiments in conjunction with the following drawings, in which: Figure 1 is a schematic diagram of a charging connection structure of a vehicle according to an embodiment of the present invention; Figure 2 is a schematic flowchart of a charging control method of a vehicle according to an embodiment of the present invention; Figure 3 is a schematic diagram of a charging control device of a vehicle according to an embodiment of the present invention.

[0028] Reference Signs: Charging control device of the vehicle - 100; Judgment module - 110; Control module - 120. Detailed Description of the Embodiments

[0029] In order to be able to understand the features and technical content of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be elaborated in detail below in conjunction with the drawings. The attached drawings are for reference and illustration only, and are not used to limit the embodiments of the present invention. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details.

[0030] Next, reference is made to Figures 1 - 3 to describe a charging control method, device, vehicle, and computer-readable storage medium of a vehicle according to an embodiment of the present invention.

[0031] In an embodiment of the present invention, as shown in Figure 1 , the vehicle includes a master vehicle and a slave vehicle. The master vehicle includes a power battery, and the slave vehicle includes a power battery (not shown in the figure) and a voltage converter. The power battery of the slave vehicle can charge the power battery of the master vehicle through the voltage converter.

[0032] Specifically, the vehicle includes a mother vehicle and a child vehicle, which are mainly used for long-distance freight transportation. Among them, both the mother vehicle and the child vehicle can operate independently, and the mother vehicle can also be used as a carrier when the child vehicle returns, carrying the child vehicle to run. Specifically, both the mother vehicle and the child vehicle are equipped with power batteries for storing electric energy, and the mother vehicle is provided with a mother-child mode switch. When the mother-child mode switch is triggered, it can send out a hard wire signal to wake up the letter switch. Further, the child vehicle is also equipped with a voltage converter for converting the electric energy of the power battery of the child vehicle into a high-voltage current suitable for charging the power battery of the mother vehicle, so that the power battery of the child vehicle can charge the power battery of the mother vehicle through the voltage converter.

[0033] Figure 2 is a schematic flow chart of a vehicle charging control method according to an embodiment of the present invention. As Figure 2 shown, the method includes the following steps: As Figure 2 shown, the vehicle charging control method includes the following steps: Step S1: When it is determined that the instruction for instructing the vehicle to enter the preset charging mode is valid, determine whether the mother vehicle and the child vehicle meet the first preset conditions. Among them, the first preset conditions include: there are no faults in both the mother vehicle and the child vehicle, and the power batteries of the mother vehicle and the child vehicle are both in a connected state with the voltage converter.

[0034] Specifically, during the operation of the vehicle, when the user operates the "mother-child mode switch" on the control panel, the vehicle-mounted controller can receive the instruction for instructing the vehicle to enter the preset charging mode and determine whether the instruction is valid, including but not limited to determining whether the instruction is complete, whether there is any misoperation or signal interference, etc. Further, when the instruction for the vehicle to enter the preset charging mode is valid, it can be determined whether the mother vehicle and the child vehicle of the vehicle meet the first preset conditions, including but not limited to determining whether there are any faults in the mother vehicle and the child vehicle that affect normal operation, such as zero-power fault, under-high-voltage fault, battery management system fault, etc., and detecting whether the power batteries of the mother vehicle and the child vehicle have been connected to the voltage converter through sensors or communication interfaces. Step S2: If so, control the vehicle to enter the preset charging mode, so as to control the power battery of the child vehicle to charge the power battery of the mother vehicle through the voltage converter in the preset charging mode.

[0035] Specifically, when the master vehicle and the slave vehicle of the vehicle meet the first preset condition, the vehicle can be controlled to enter the preset charging mode, that is, the controllers of the master vehicle and the slave vehicle respectively send an enabling signal to the voltage converter to make the voltage converter enter the working ready state, so that the power battery of the slave vehicle can charge the power battery of the master vehicle through the voltage converter. For example, when the master vehicle and the slave vehicle of the vehicle meet the first preset condition, the controller of the master vehicle can guide the power system of the master vehicle chassis to perform high-voltage processing. At the same time, the controller of the slave vehicle can also guide the power system of the slave vehicle chassis to perform high-voltage processing. After the high-voltage processing is successful, the power battery of the slave vehicle can charge the power battery of the master vehicle through the voltage converter according to the output power obtained in real time.

[0036] Therefore, in the above vehicle charging control method, during the vehicle transportation process, when the vehicle receives a valid instruction for indicating to enter the preset charging mode and the vehicle meets the preset conditions, the slave vehicle of the vehicle can be controlled to charge the master vehicle, extending the cruising range of the master vehicle, avoiding the need for mid-way charging stops, reducing the time cost of transportation, improving the transportation efficiency. At the same time, the number of vehicles running during the return journey of the vehicle can be reduced, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0037] In an embodiment of the present invention, controlling the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter includes: obtaining the target output power of the voltage converter; controlling the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter according to the target output power.

[0038] Specifically, during the process of controlling the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter, the current and voltage output by the voltage converter can be adjusted according to the obtained target output power of the voltage converter to ensure that the electric energy in the power battery of the slave vehicle is safely and fully transmitted to the power battery of the master vehicle through the voltage converter to charge the master vehicle. Among them, when obtaining the target output power of the voltage converter, the target output power of the voltage converter can be determined by comprehensively considering the required power of the master vehicle and the output power of the slave vehicle.

[0039] In an embodiment of the present invention, obtaining the target output power of the voltage converter includes: obtaining the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle; determining the smaller value of the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle as the target output power.

[0040] Specifically, in the process of obtaining the target output power of the voltage converter, the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle can be obtained. Among them, the requested power of the master vehicle is the charging power currently required by the master vehicle, including but not limited to being determined based on the battery state of the master vehicle, the charging strategy (such as fast charging or slow charging), and the user-set charging target (such as fully charged or charged to a specific battery percentage). The maximum discharge power allowed by the slave vehicle is the maximum discharge power that the slave vehicle can provide, that is, the discharge power that will not cause damage to itself during the discharge process of the slave vehicle and can reserve sufficient power for subsequent use when necessary.

[0041] Further, after obtaining the requested power of the master vehicle and the maximum discharge power of the slave vehicle, the smaller value of the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle can be determined as the target output power. It can be understood that if the voltage converter attempts to output power exceeding the maximum discharge power of the slave vehicle, it may damage the battery or charging system of the slave vehicle; similarly, if the output power is lower than the requested power of the master vehicle, the charging speed of the master vehicle will be lower than its desired speed, resulting in reduced charging efficiency. Therefore, the smaller value can be selected as the target output power, which can ensure the safety and efficiency when the slave vehicle charges the master vehicle, while maximizing the utilization of the power battery resources of the slave vehicle and extending the driving range of the master vehicle.

[0042] In an embodiment of the present invention, obtaining the requested power of the master vehicle includes: obtaining the remaining power of the master vehicle, the maximum feedback power, and the output power of the voltage converter; and determining the requested power of the master vehicle based on the remaining power of the master vehicle, the maximum feedback power, and the output power of the voltage converter.

[0043] Specifically, when charging the master vehicle, the remaining power of the master vehicle, the maximum feedback power, and the output power of the voltage converter can be obtained to determine the requested power of the master vehicle. Among them, the remaining power of the master vehicle reflects the proportion of the current power stored in the power battery of the master vehicle relative to its total capacity, which can affect the charging power that the master vehicle can accept. When the remaining power of the master vehicle is low, it means that the power battery of the master vehicle may require a higher charging power to quickly replenish the power, while when the remaining power of the master vehicle is close to full charge, the charging power usually needs to be reduced to protect the power battery and extend its life; the maximum feedback power reflects the maximum charging power that the master vehicle can accept. If the feedback power is high, it means that the power battery can accept a higher charging power during the charging process; and the output power of the voltage converter limits the requested power of the master vehicle.

[0044] Further, the requested power of the master vehicle can be determined based on the remaining power of the master vehicle, the maximum feedback power, and the output power of the voltage converter, including but not limited to calculating a preliminary requested power based on the remaining power of the master vehicle, comparing the preliminary requested power with the maximum feedback power of the power battery and the current output power of the voltage converter, and selecting the smaller value as the requested power of the master vehicle, thereby ensuring the safety and efficiency when the slave vehicle charges the master vehicle, maximizing the utilization of the power battery resources of the slave vehicle, and extending the cruising range of the master vehicle.

[0045] In an embodiment of the present invention, the charging control method of the vehicle further includes: when any one of the second preset conditions is met, controlling the voltage converter to stop charging the power battery of the master vehicle, where the second preset conditions include: receiving an invalid instruction for indicating that the vehicle enters a preset charging mode, the remaining power of the slave vehicle is lower than a preset power threshold, the master vehicle detects an external charging pile charging signal, the power battery of the master vehicle or the power battery of the slave vehicle is not in a connected state with the voltage converter, or there is a fault in the master vehicle or the slave vehicle.

[0046] Specifically, when charging the master vehicle, if it is detected that the instruction for making the vehicle enter the preset charging mode is invalid, for example, the signal of the "master-slave mode switch" is lost or interrupted, then control the voltage converter to stop charging the power battery of the master vehicle; similarly, when the remaining power of the power battery of the slave vehicle is lower than the preset power threshold, it indicates that the power battery of the slave vehicle has insufficient power, and continuing to charge will affect the state of the slave vehicle. At this time, the voltage converter can be controlled to stop charging the power battery of the master vehicle, that is, stop the charging process from the slave vehicle to the master vehicle; similarly, if the master vehicle detects a charging signal sent by an external charging pile, indicating that the master vehicle can be charged through the charging pile, then give priority to using the external charging pile for charging. At this time, the voltage converter can be controlled to stop charging the power battery of the master vehicle; similarly, if the connection between the power battery of the master vehicle or the power battery of the slave vehicle and the voltage converter is disconnected or not correctly connected, it indicates that the connection is poor at this time and there is a safety hazard, and the voltage converter can be controlled to stop charging the power battery of the master vehicle; similarly, if there is a fault in the master vehicle or the slave vehicle, it indicates that there is a safety hazard in the vehicle, and the vehicle may be damaged or an accident may occur due to the fault. At this time, the voltage converter can be controlled to stop charging the power battery of the master vehicle.

[0047] In an embodiment of the present invention, controlling the voltage converter to stop charging the power battery of the master vehicle includes: controlling the voltage converter to be turned off and controlling the slave vehicle to power off to stop charging the power battery of the master vehicle.

[0048] Specifically, during the process of controlling the voltage converter to stop charging the power battery of the mother vehicle, the controller of the mother vehicle or the controller of the child vehicle can, according to different situations, send a disable signal to the voltage converter to instruct the voltage converter to stop working. When the voltage converter receives the disable signal, it performs a shutdown operation, that is, cutting off the high-voltage circuit to ensure that no current flows to the power battery of the mother vehicle. At the same time, it can control the child vehicle to power off, that is, cutting off the high-voltage circuit of the child vehicle to ensure that no current flows to the voltage converter.

[0049] In an embodiment of the present invention, after controlling the vehicle to enter the preset charging mode, it further includes: when it is determined that the driving function of the mother vehicle is turned on, controlling the mother vehicle to enter the driving state and controlling the child vehicle to enter the stationary state.

[0050] Specifically, after controlling the vehicle to enter the preset charging mode, the controller of the mother vehicle can detect whether the driving function of the mother vehicle is turned on through the driver's operations (such as turning the key to the "Start" position, stepping on the brake pedal, etc.). Further, when it is determined that the driving function of the mother vehicle is turned on, the controller of the mother vehicle can control the driving motor to start, enabling the mother vehicle to enter the driving state, thereby realizing the synchronous progress of driving and charging.

[0051] Further, when the mother vehicle enters the driving state, the driving function of the child vehicle can be synchronously disabled, that is, controlling the driving motor of the child vehicle to stop running through the controller of the child vehicle, making the child vehicle in a stationary state to ensure the driving and charging safety of the mother vehicle.

[0052] In summary, according to the vehicle charging control method of the embodiments of the present invention, during the vehicle transportation process, when the vehicle receives a valid instruction for indicating entry into the preset charging mode and the vehicle meets the preset conditions, it can control the child vehicle of the vehicle to charge the mother vehicle, extend the battery life of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle transportation, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0053] A further embodiment of the present invention proposes a charging control device 100, as Figure 3 shown, the charging control device 100 includes: a judgment module 110 and a control module 120.

[0054] Specifically, the judgment module 110 is used for judging whether the mother vehicle and the child vehicle meet the first preset conditions when receiving a valid instruction for indicating that the vehicle enters the preset charging mode, where the first preset conditions include: neither the mother vehicle nor the child vehicle has a fault, and the power batteries of both the mother vehicle and the child vehicle are in a connected state with the voltage converter.

[0055] The control module 120 is used to control the vehicle to enter a preset charging mode, so that in the preset charging mode, it controls the power battery of the slave vehicle to charge the power battery of the master vehicle through a voltage converter.

[0056] In some embodiments, when controlling the power battery of the slave vehicle to charge the power battery of the master vehicle through a voltage converter, the control module 120 is specifically configured to: obtain the target output power of the voltage converter; control the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter according to the target output power.

[0057] In some embodiments, when obtaining the target output power of the voltage converter, the control module 120 is specifically configured to: obtain the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle; determine the smaller value of the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle as the target output power.

[0058] In some embodiments, when obtaining the requested power of the master vehicle, the control module 120 is specifically configured to: obtain the remaining power, maximum feedback power of the master vehicle, and the output power of the voltage converter; determine the requested power of the master vehicle according to the remaining power, maximum feedback power of the master vehicle, and the output power of the voltage converter.

[0059] In some embodiments, the control module 120 is further configured to: when any one of the second preset conditions is met, control the voltage converter to stop charging the power battery of the master vehicle, where the second preset conditions include: receiving an invalid instruction for indicating that the vehicle enters the preset charging mode, the remaining power of the slave vehicle is lower than the preset power threshold, the master vehicle detects an external charging pile charging signal, the power battery of the master vehicle or the power battery of the slave vehicle is not in a connected state with the voltage converter, and there is a fault in the master vehicle or the slave vehicle.

[0060] In some embodiments, when controlling the voltage converter to stop charging the power battery of the master vehicle, the control module 120 is specifically configured to: control the voltage converter to be turned off, and control the slave vehicle to power off, so as to stop charging the power battery of the master vehicle.

[0061] In some embodiments, after controlling the vehicle to enter the preset charging mode, the control module 120 is further configured to: when it is determined that the driving function of the master vehicle is turned on, control the master vehicle to enter the driving state, and control the slave vehicle to enter the stationary state.

[0062] According to the charging control device 100 of the vehicle of the present invention, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle, thereby reducing the tolls of the vehicle, and further achieving the purpose of cost savings.

[0063] A further embodiment of the present invention also discloses a vehicle, which includes: the charging control device of the vehicle in the second aspect embodiment above, or a processor, a memory, and a vehicle charging control program stored on the memory and executable on the processor. When the vehicle charging control program is executed by the processor, it implements the vehicle charging control method in any one of the first aspect embodiments above.

[0064] According to the vehicle of the embodiment of the present invention, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle, thereby reducing the tolls of the vehicle, and further achieving the purpose of cost savings.

[0065] A further embodiment of the present invention also discloses a computer-readable storage medium, on which a vehicle charging control program is stored. When the vehicle charging control program is executed by the processor, it implements the vehicle charging control method described in any one of the above embodiments of the present invention.

[0066] According to the computer-readable storage medium of the embodiment of the present invention, when the vehicle charging control program stored thereon is executed by the processor, during the transportation of the vehicle, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles running during the return journey of the vehicle, thereby reducing the tolls of the vehicle, and further achieving the purpose of cost savings.

[0067] A further embodiment of the present invention also discloses a computer program, which implements the vehicle charging control method described in any one of the above embodiments of the present invention when executed.

[0068] According to the computer program of the embodiments of the present invention, when the computer program is executed and during the vehicle transportation, when the vehicle receives a valid instruction for indicating entry into a preset charging mode and the vehicle meets the preset conditions, it can control the sub-vehicle of the vehicle to charge the mother vehicle, extend the cruising range of the mother vehicle, avoid the need for charging during the journey, reduce the time cost of transportation, improve the transportation efficiency. At the same time, it can reduce the number of vehicles operating during the return journey of the vehicle transportation, thereby reducing the tolls of the vehicles, and further achieving the purpose of cost savings.

[0069] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0070] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A charging control method for a vehicle, characterized in that, The vehicle includes a master vehicle and a slave vehicle. Both the master vehicle and the slave vehicle include power batteries. The slave vehicle further includes a voltage converter. The power battery of the slave vehicle can charge the power battery of the master vehicle through the voltage converter. The method includes the following steps: When it is determined that the instruction for indicating the vehicle to enter the preset charging mode is valid, determine whether the master vehicle and the slave vehicle meet the first preset condition. Wherein, the first preset condition includes: neither the master vehicle nor the slave vehicle has a fault, and both the power battery of the master vehicle and the power battery of the slave vehicle are in a connected state with the voltage converter; If so, control the vehicle to enter the preset charging mode, so as to control the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter in the preset charging mode.

2. The charging control method for a vehicle according to claim 1, characterized in that, The control of the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter includes: Obtain the target output power of the voltage converter; Control the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter according to the target output power.

3. The charging control method for a vehicle according to claim 2, wherein Obtaining the target output power of the voltage converter includes: Obtain the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle; Determine the smaller value of the requested power of the master vehicle and the maximum discharge power allowed by the slave vehicle as the target output power.

4. The charging control method for a vehicle according to claim 3, wherein Obtaining the requested power of the master vehicle includes: Obtain the remaining power, the maximum feedback power of the master vehicle, and the output power of the voltage converter; Determine the requested power of the master vehicle according to the remaining power of the master vehicle, the maximum feedback power, and the output power of the voltage converter.

5. The charging control method for a vehicle according to claim 1, wherein, It further includes: When any one of the second preset conditions is met, control the voltage converter to stop charging the power battery of the master vehicle. Wherein, the second preset condition includes: the instruction for indicating the vehicle to enter the preset charging mode is invalid, the remaining power of the slave vehicle is lower than the preset power threshold, the master vehicle detects an external charging pile charging signal, the power battery of the master vehicle or the power battery of the slave vehicle is not in a connected state with the voltage converter, or the master vehicle or the slave vehicle has a fault.

6. The charging control method for a vehicle according to claim 1, wherein The control of the voltage converter to stop charging the power battery of the master vehicle includes: Control the voltage converter to be turned off, and control the slave vehicle to be powered off to stop charging the power battery of the master vehicle.

7. The charging control method for a vehicle according to claim 1, wherein After controlling the vehicle to enter the preset charging mode, it further includes: When it is determined that the driving function of the master vehicle is turned on, control the master vehicle to enter the driving state and control the slave vehicle to enter the stationary state.

8. A charging control device for a vehicle, characterized in that, The vehicle includes a master vehicle and a slave vehicle. Both the master vehicle and the slave vehicle include power batteries. The slave vehicle further includes a voltage converter. The power battery of the slave vehicle can charge the power battery of the master vehicle through the voltage converter. The device includes: A judgment module, configured to judge whether the master vehicle and the slave vehicle meet a first preset condition when an instruction for instructing the vehicle to enter a preset charging mode is received and is valid, where the first preset condition includes: there are no faults in both the master vehicle and the slave vehicle, and the power batteries of the master vehicle and the slave vehicle are both in a connected state with the voltage converter; A control module, configured to control the vehicle to enter the preset charging mode, so as to control the power battery of the slave vehicle to charge the power battery of the master vehicle through the voltage converter in the preset charging mode.

9. A vehicle, characterized in that, including: The vehicle charging control device according to claim 8, or a processor, a memory, and a vehicle charging control program stored on the memory and executable on the processor, where when the vehicle charging control program is executed by the processor, it implements the vehicle charging control method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The vehicle charging control program is stored on the computer-readable storage medium, and when the vehicle charging control program is executed by the processor, it implements the vehicle charging control method according to any one of claims 1-7.

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