Control method, control system and controller for charging new energy engineering vehicles

Abstract

The present application discloses a control method, control system and controller for recharging new energy engineering vehicles. The method includes: connecting a first new energy engineering vehicle and a second new energy engineering vehicle; controlling the control unit of the first new energy engineering vehicle to send a first power transmission operation identification message to the second new energy engineering vehicle, and controlling the control unit of the second new energy engineering vehicle to send a second power transmission operation identification message to the first new energy engineering vehicle; judging whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message; in the case of judging that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, controlling the second new energy engineering vehicle to recharge the first new energy engineering vehicle. The present application can increase the operation time of the first new energy engineering vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of new energy engineering vehicles, and specifically to a control method, control system and controller for replenishing power of new energy engineering vehicles. Background Art

[0002] Since new energy engineering vehicles consume huge power when performing loading operations and the battery configuration of the whole vehicle is limited, the whole vehicle is equipped with a high-power on-board charger to realize charging operations to ensure the continuity of operations, but this also limits the scope of use of new energy engineering vehicles. In the case where there is no high-power power supply or the power supply is small at the operation site, because it is impossible to recharge the new energy engineering vehicle or the recharging effect cannot be achieved, the new energy engineering vehicle can only rely on the battery configured by the new energy engineering vehicle to operate, and it is also necessary to reserve enough power for the new energy engineering vehicle to return, resulting in a short operation time of the new energy engineering vehicle, which is difficult to meet the operation requirements. At the same time, the fast charging interface of the new energy engineering vehicle is usually used when the whole vehicle is fast charged, and is used to connect the whole vehicle power battery with the ground DC fast charging pile. If the fast charging interface is used to realize the connection of the new energy engineering vehicle, the connected new energy engineering vehicles cannot identify whether it is connected to the ground charging pile or the vehicle, and therefore cannot obtain the information of the connected vehicle through the communication of the new energy engineering vehicle. Therefore, the existing technology has the problem of short operation time of the new energy engineering vehicle due to the inability to recharge the new energy engineering vehicle or the inability to recharge the power. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a control method, control system and controller for recharging new energy engineering vehicles, so as to solve the problem in the prior art that the new energy engineering vehicles cannot be recharged or the recharging effect cannot be achieved, resulting in short operating time of new energy engineering vehicles.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a control method for charging a new energy engineering vehicle, which is applied to a controller of a new energy engineering vehicle charging control system, and the controller communicates with a first new energy engineering vehicle and a second new energy engineering vehicle. The control method includes:

[0005] Connecting a first new energy engineering vehicle and a second new energy engineering vehicle;

[0006] The control unit of the first new energy engineering vehicle is controlled to send a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit of the second new energy engineering vehicle is controlled to send a second power transmission operation identification message to the first new energy engineering vehicle;

[0007] Determine whether the first new energy engineering vehicle has received the second power transmission operation identification message, and whether the second new energy engineering vehicle has received the first power transmission operation identification message;

[0008] When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected to control the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle.

[0009] In an embodiment of the present application, the control method further includes:

[0010] In the case where it is determined that the first new energy engineering vehicle has not received the second power transmission operation identification message, determining that the first new energy engineering vehicle is in a DC fast charging mode;

[0011] When it is determined that the second new energy engineering vehicle has not received the first power transmission operation identification message, it is determined that the second new energy engineering vehicle is in the DC fast charging mode.

[0012] In an embodiment of the present application, controlling the control unit of the first new energy engineering vehicle to send a first power transmission operation identification message to the second new energy engineering vehicle, and controlling the control unit of the second new energy engineering vehicle to send a second power transmission operation identification message to the first new energy engineering vehicle includes:

[0013] Determine whether a power connection signal is received;

[0014] When it is determined that a power connection signal is received, the control unit controlling the first new energy engineering vehicle sends a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit controlling the second new energy engineering vehicle sends a second power transmission operation identification message to the first new energy engineering vehicle.

[0015] In an embodiment of the present application, the control method further includes:

[0016] Determining whether the second new energy engineering vehicle meets the first preset condition and the second preset condition;

[0017] When it is determined that the second new energy engineering vehicle satisfies the first preset condition and the second preset condition, the second new energy engineering vehicle is controlled to supplement power for the first new energy engineering vehicle.

[0018] In an embodiment of the present application, the first preset condition is that the battery voltage range and power of the second new energy engineering vehicle match those of the first new energy engineering vehicle, and the second preset condition is that the remaining power of the second new energy engineering vehicle is greater than or equal to the sum of the required power of the first new energy engineering vehicle and the minimum operating power of the second new energy engineering vehicle.

[0019] In the embodiment of the present application, the first new energy engineering vehicle includes a power-on start switch, and before the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected, the following is also included:

[0020] Control the power replenishment start switch to close, and send a power replenishment start switch closing signal to the first new energy engineering vehicle, so as to send a circuit connection enable instruction through the first new energy engineering vehicle, so that the first new energy engineering vehicle and the second new energy engineering vehicle enter the high-voltage circuit connection procedure.

[0021] In the embodiment of the present application, the first new energy engineering vehicle and the second new energy engineering vehicle both include a battery management module, and before connecting the high voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle, the following are also included:

[0022] Turn off the insulation monitoring function of the battery management module of the first new energy engineering vehicle or the second new energy engineering vehicle.

[0023] A second aspect of the present application provides a controller, comprising:

[0024] a memory configured to store instructions; and

[0025] The processor is configured to call instructions from the memory and implement the above-mentioned control method for charging new energy engineering vehicles when executing the instructions.

[0026] The third aspect of the present application provides a new energy engineering vehicle power replenishment control system, including:

[0027] Controller;

[0028] a first new energy engineering vehicle in communication with the controller and configured to receive electrical energy provided by a second new energy engineering vehicle;

[0029] The second new energy engineering vehicle communicates with the controller and the first new energy engineering vehicle respectively, and is configured to supplement power for the first new energy engineering vehicle.

[0030] In the embodiment of the present application, the first new energy engineering vehicle includes:

[0031] The power-up start switch is configured to enable the first new energy engineering vehicle and the second new energy engineering vehicle to enter a high-voltage circuit connection procedure when the power-up start switch is closed;

[0032] The battery management module of the first new energy engineering vehicle is configured to monitor the charging status of the first new energy engineering vehicle.

[0033] In the embodiment of the present application, the second new energy engineering vehicle includes:

[0034] The battery management module of the second new energy engineering vehicle is configured to monitor the power supply status of the second new energy engineering vehicle.

[0035] A fourth aspect of the present application provides a machine-readable storage medium, characterized in that instructions are stored on the machine-readable storage medium, and the instructions are used to enable the machine to execute the above-mentioned control method for replenishing power for new energy engineering vehicles.

[0036] Through the above technical solution, the first new energy engineering vehicle and the second new energy engineering vehicle are connected, and the control unit of the first new energy engineering vehicle is controlled to send the first power transmission operation identification message to the second new energy engineering vehicle, and the control unit of the second new energy engineering vehicle is used to send the second power transmission operation identification message to the first new energy engineering vehicle. Then it is determined whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message. In the case of determining that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected to control the second new energy engineering vehicle to supplement the power of the first new energy engineering vehicle. When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the present application controls the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle, and can identify the information of the new energy engineering vehicle through the first power transmission operation identification message and the second power transmission operation identification message, and provide necessary information interaction confirmation for the connection of the high-voltage circuit, thereby realizing the power transfer between the first new energy engineering vehicle and the second new energy engineering vehicle, and increasing the operation time of the first new energy engineering vehicle.

[0037] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0039] Figure 1 A flowchart schematically shows a method for controlling power replenishment of a new energy engineering vehicle according to an embodiment of the present application;

[0040] Figure 2 The schematic diagram shows a structural block diagram of a controller according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0042] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0044] Figure 1 The flowchart schematically shows a control method for charging a new energy engineering vehicle according to an embodiment of the present application. Figure 1 As shown, the embodiment of the present application provides a control method for charging a new energy engineering vehicle, which may include the following steps:

[0045] Step 101, connecting a first new energy engineering vehicle and a second new energy engineering vehicle;

[0046] Step 102: Control the control unit of the first new energy engineering vehicle to send a first power transmission operation identification message to the second new energy engineering vehicle, and control the control unit of the second new energy engineering vehicle to send a second power transmission operation identification message to the first new energy engineering vehicle;

[0047] Step 103: determining whether the first new energy engineering vehicle has received the second power transmission operation identification message, and whether the second new energy engineering vehicle has received the first power transmission operation identification message;

[0048] Step 104: When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected to control the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle.

[0049] In an embodiment of the present application, the first new energy engineering vehicle may be an engineering machinery equipment that is not easy to move, such as an electric pump truck, and the second new energy engineering vehicle may be an engineering machinery equipment that is easy to move, such as an electric mixer truck. The controller may connect the fast charging interface of the first new energy engineering vehicle to the fast charging interface of the second new energy engineering vehicle through a DC charging gun, and determine whether the power connection signal of the DC charging gun is received. Upon receiving the power connection signal, the control unit of the first new energy engineering vehicle is controlled to send a first power transmission operation identification message to the controller LAN bus of the first new energy engineering vehicle, and the control unit of the second new energy engineering vehicle is controlled to send a second power transmission operation identification message to the controller LAN bus of the second new energy engineering vehicle, and at the same time, the second new energy engineering vehicle is controlled not to drive. Since the controller LAN bus of the first new energy engineering vehicle is connected to the fast charging interface of the first new energy engineering vehicle, the controller LAN bus of the second new energy engineering vehicle is connected to the fast charging interface of the second new energy engineering vehicle, and the fast charging interface of the first new energy engineering vehicle and the fast charging interface of the second new energy engineering vehicle are connected through a DC charging gun, the control unit of the first new energy engineering vehicle can send a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit of the second new energy engineering vehicle can send a second power transmission operation identification message to the first new energy engineering vehicle.

[0050] Further, the controller can determine whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message. In the case where it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, it can be determined that the current operation mode is the power transmission operation mode. At the same time, the controller can also determine whether the second new energy engineering vehicle meets the first preset condition and the second preset condition. In the case where it is determined that the second new energy engineering vehicle meets the first preset condition and meets the second preset condition, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected, and the electronic lock of the DC charging gun is controlled to enter a locked state through the battery management module of the first new energy engineering vehicle and the battery management module of the second new energy engineering vehicle, and the insulation monitoring function of the battery management module of the first new energy engineering vehicle or the second new energy engineering vehicle is turned off to control the second new energy engineering vehicle to supplement the power of the first new energy engineering vehicle.

[0051] In addition, after the second new energy engineering vehicle completes the power replenishment of the first new energy engineering vehicle, the controller can control the load of the first new energy engineering vehicle to stop working, and disconnect the power replenishment start switch of the first new energy engineering vehicle, so as to send a disconnection instruction to the controller area network bus of the first new energy engineering vehicle through the control unit of the first new energy engineering vehicle. Since the controller area network bus of the first new energy engineering vehicle is connected to the fast charging interface of the first new energy engineering vehicle, the controller area network bus of the second new energy engineering vehicle is connected to the fast charging interface of the second new energy engineering vehicle, and the fast charging interface of the first new energy engineering vehicle and the fast charging interface of the second new energy engineering vehicle are connected through a DC charging gun, the control unit of the second new energy engineering vehicle can also receive a disconnection instruction, thereby controlling the charging positive and negative relays of the first new energy engineering vehicle and the second new energy engineering vehicle to disconnect. In addition, the controller can control the electronic lock of the DC charging gun to release, so that the first new energy engineering vehicle and the second new energy engineering vehicle can be disconnected. In the case where the first power transmission operation identification message or the second power transmission operation identification message is not detected on the controller area network bus of the first new energy engineering vehicle, the power battery of the first new energy engineering vehicle can be used to complete the high voltage power-on of the load.

[0052] Through the above technical solution, the first new energy engineering vehicle and the second new energy engineering vehicle are connected, and the control unit of the first new energy engineering vehicle is controlled to send the first power transmission operation identification message to the second new energy engineering vehicle, and the control unit of the second new energy engineering vehicle is used to send the second power transmission operation identification message to the first new energy engineering vehicle. Then it is determined whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message. In the case of determining that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected to control the second new energy engineering vehicle to supplement the power of the first new energy engineering vehicle. When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the present application controls the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle, and can identify the information of the new energy engineering vehicle through the first power transmission operation identification message and the second power transmission operation identification message, and provide necessary information interaction confirmation for the connection of the high-voltage circuit, thereby realizing the power transfer between the first new energy engineering vehicle and the second new energy engineering vehicle, and increasing the operation time of the first new energy engineering vehicle.

[0053] In an embodiment of the present application, the control method may further include:

[0054] In the case where it is determined that the first new energy engineering vehicle has not received the second power transmission operation identification message, determining that the first new energy engineering vehicle is in a DC fast charging mode;

[0055] When it is determined that the second new energy engineering vehicle has not received the first power transmission operation identification message, it is determined that the second new energy engineering vehicle is in the DC fast charging mode.

[0056] Specifically, the controller can determine the current operation mode by judging whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message. When the control unit of the first new energy engineering vehicle sends the first power transmission operation identification message and does not receive the second power transmission operation identification message, it is determined that the first new energy engineering vehicle is in DC fast charging mode. When the control unit of the second new energy engineering vehicle sends the second power transmission operation identification message and does not receive the first power transmission operation identification message, it is determined that the second new energy engineering vehicle is in DC fast charging mode. In this way, the current operation modes of the first new energy engineering vehicle and the second new energy engineering vehicle can be determined.

[0057] In an embodiment of the present application, controlling the control unit of the first new energy engineering vehicle to send the first power transmission operation identification message to the second new energy engineering vehicle, and controlling the control unit of the second new energy engineering vehicle to send the second power transmission operation identification message to the first new energy engineering vehicle may include:

[0058] Determine whether a power connection signal is received;

[0059] When it is determined that a power connection signal is received, the control unit controlling the first new energy engineering vehicle sends a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit controlling the second new energy engineering vehicle sends a second power transmission operation identification message to the first new energy engineering vehicle.

[0060] Specifically, the controller can determine whether the power connection signal sent by the DC charging gun is received. The power connection signal is a signal to determine whether the DC charging gun is connected to the first new energy engineering vehicle and the second new energy engineering vehicle. When the DC charging gun is connected to the first new energy engineering vehicle and the second new energy engineering vehicle, the controller can receive the power connection signal. Furthermore, when the controller receives the power connection signal, the controller can control the control unit of the first new energy engineering vehicle to send a first power transmission operation identification message to the second new energy engineering vehicle, and control the control unit of the second new energy engineering vehicle to send a second power transmission operation identification message to the first new energy engineering vehicle.

[0061] In an embodiment of the present application, the control method may further include:

[0062] Determining whether the second new energy engineering vehicle meets the first preset condition and the second preset condition;

[0063] When it is determined that the second new energy engineering vehicle satisfies the first preset condition and the second preset condition, the second new energy engineering vehicle is controlled to supplement power for the first new energy engineering vehicle.

[0064] Specifically, in order to ensure the normal operation of the first new energy engineering vehicle and the second new energy engineering vehicle, the controller can determine whether the second new energy engineering vehicle meets the first preset condition and the second preset condition. Only when the second new energy engineering vehicle meets the first preset condition and the second preset condition, the controller can control the second new energy engineering vehicle to replenish power for the first new energy engineering vehicle. The first preset condition is that the battery voltage range and power of the second new energy engineering vehicle match those of the first new energy engineering vehicle. The second preset condition is that the remaining power of the second new energy engineering vehicle is greater than or equal to the sum of the required power of the first new energy engineering vehicle and the minimum operating power of the second new energy engineering vehicle. The minimum operating power of the second new energy engineering vehicle refers to the power required for the second new energy engineering vehicle to return to the charging station.

[0065] In an embodiment of the present application, the first preset condition is that the battery voltage range and power of the second new energy engineering vehicle match those of the first new energy engineering vehicle, and the second preset condition is that the remaining power of the second new energy engineering vehicle is greater than or equal to the sum of the required power of the first new energy engineering vehicle and the minimum operating power of the second new energy engineering vehicle.

[0066] Specifically, in order to ensure the normal operation of the first new energy engineering vehicle and the second new energy engineering vehicle, the controller can determine whether the second new energy engineering vehicle meets the first preset condition and the second preset condition. When the second new energy engineering vehicle meets the first preset condition and the second preset condition, the controller can control the second new energy engineering vehicle to recharge the first new energy engineering vehicle. The first preset condition is that the battery voltage range and power of the second new energy engineering vehicle match the first new energy engineering vehicle. In this way, the first new energy engineering vehicle will not be damaged during the process of the second new energy engineering vehicle recharging the first new energy engineering vehicle. The second preset condition is that the remaining power of the second new energy engineering vehicle is greater than or equal to the sum of the required power of the first new energy engineering vehicle and the minimum operating power of the second new energy engineering vehicle. The minimum operating power of the second new energy engineering vehicle refers to the power required for the second new energy engineering vehicle to return to the charging station.

[0067] In an embodiment of the present application, the first new energy engineering vehicle may include a power-on start switch, and before connecting the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle, the following may also be included:

[0068] Control the power replenishment start switch to close, and send a power replenishment start switch closing signal to the first new energy engineering vehicle, so as to send a circuit connection enable instruction through the first new energy engineering vehicle, so that the first new energy engineering vehicle and the second new energy engineering vehicle enter the high-voltage circuit connection procedure.

[0069] Specifically, the first new energy engineering vehicle may include a supplementary power start switch. The controller may control the supplementary power start switch to close, and send a supplementary power start switch closing signal to the first new energy engineering vehicle, thereby sending a circuit connection enable instruction to the controller area network bus of the first new energy engineering vehicle through the first new energy engineering vehicle. Since the controller area network bus of the first new energy engineering vehicle is connected to the fast charging interface of the first new energy engineering vehicle, the controller area network bus of the second new energy engineering vehicle is connected to the fast charging interface of the second new energy engineering vehicle, and the fast charging interface of the first new energy engineering vehicle and the fast charging interface of the second new energy engineering vehicle are connected through a DC charging gun, the second new energy engineering vehicle can also receive the circuit connection enable instruction. In this way, the first new energy engineering vehicle and the second new energy engineering vehicle can enter the high-voltage circuit connection procedure. In the high-voltage circuit connection procedure, it is necessary to complete the connection of the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle in a certain order of operation to reduce the possibility of damage to the first new energy engineering vehicle and the second new energy engineering vehicle. First, the controller can control the load of the first new energy engineering vehicle to be closed through the control unit of the first new energy engineering vehicle. Subsequently, the controller can control the total negative relay of the first new energy engineering vehicle to be disconnected through the control unit of the first new energy engineering vehicle. Then, the controller can control the charging positive and negative relays of the first new energy engineering vehicle and the second new energy engineering vehicle to close. Finally, the pre-charging module of the first new energy engineering vehicle is enabled, thereby completing the high-voltage power-on of the load of the first new energy engineering vehicle. In this way, the first new energy engineering vehicle and the second new energy engineering vehicle can enter the high-voltage circuit connection procedure to complete the connection of the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle.

[0070] In the embodiment of the present application, the first new energy engineering vehicle and the second new energy engineering vehicle both include a battery management module, and before connecting the high voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle, the following may also be included:

[0071] Turn off the insulation monitoring function of the battery management module of the first new energy engineering vehicle or the second new energy engineering vehicle.

[0072] Specifically, the first new energy engineering vehicle and the second new energy engineering vehicle both include a battery management module. After the high voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected, if the insulation monitoring functions of the battery management modules of the first new energy engineering vehicle and the second new energy engineering vehicle are both kept turned on, it may cause the battery management module to fail and cause false detection. Therefore, the insulation monitoring function of one of the battery management modules must be turned off. The controller can turn off the insulation monitoring function of the battery management module of the first new energy engineering vehicle or the second new energy engineering vehicle to ensure the normal operation of the battery management modules of the first new energy engineering vehicle and the second new energy engineering vehicle.

[0073] Figure 2 The structure block diagram of a controller according to an embodiment of the present application is schematically shown. Figure 2 As shown, an embodiment of the present application provides a controller, which may include:

[0074] Memory 210, configured to store instructions; and

[0075] The processor 220 is configured to call instructions from the memory 210 and implement the above-mentioned control method for charging new energy engineering vehicles when executing the instructions.

[0076] Specifically, in the embodiment of the present application, the processor 220 may be configured to:

[0077] Connecting a first new energy engineering vehicle and a second new energy engineering vehicle;

[0078] Controlling the control unit of the first new energy engineering vehicle to send a first power transmission operation identification message to the second new energy engineering vehicle, and sending a second power transmission operation identification message to the first new energy engineering vehicle through the control unit of the second new energy engineering vehicle;

[0079] Determine whether the first new energy engineering vehicle has received the second power transmission operation identification message, and whether the second new energy engineering vehicle has received the first power transmission operation identification message;

[0080] When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected to control the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle.

[0081] Furthermore, the processor 220 may be configured to:

[0082] In the case where it is determined that the first new energy engineering vehicle has not received the second power transmission operation identification message, determining that the first new energy engineering vehicle is in a DC fast charging mode;

[0083] When it is determined that the second new energy engineering vehicle has not received the first power transmission operation identification message, it is determined that the second new energy engineering vehicle is in the DC fast charging mode.

[0084] Furthermore, the processor 220 may be configured to:

[0085] Determine whether a power connection signal is received;

[0086] When it is determined that a power connection signal is received, the control unit of the first new energy engineering vehicle sends a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit of the second new energy engineering vehicle sends a second power transmission operation identification message to the first new energy engineering vehicle.

[0087] Furthermore, the processor 220 may be configured to:

[0088] Determining whether the second new energy engineering vehicle meets the first preset condition and the second preset condition;

[0089] When it is determined that the second new energy engineering vehicle satisfies the first preset condition and the second preset condition, the second new energy engineering vehicle is controlled to supplement power for the first new energy engineering vehicle.

[0090] In an embodiment of the present application, the first preset condition is that the battery voltage range and power of the second new energy engineering vehicle match those of the first new energy engineering vehicle, and the second preset condition is that the remaining power of the second new energy engineering vehicle is greater than or equal to the sum of the required power of the first new energy engineering vehicle and the minimum operating power of the second new energy engineering vehicle.

[0091] Furthermore, the processor 220 may be configured to:

[0092] Control the power replenishment start switch to close, and send a power replenishment start switch closing signal to the first new energy engineering vehicle, so as to send a circuit connection enable instruction through the first new energy engineering vehicle, so that the first new energy engineering vehicle and the second new energy engineering vehicle enter the high-voltage circuit connection procedure.

[0093] Furthermore, the processor 220 may be configured to:

[0094] Turn off the insulation monitoring function of the battery management module of the first new energy engineering vehicle or the second new energy engineering vehicle.

[0095] Through the above technical solution, the first new energy engineering vehicle and the second new energy engineering vehicle are connected, and the control unit of the first new energy engineering vehicle is controlled to send the first power transmission operation identification message to the second new energy engineering vehicle, and the control unit of the second new energy engineering vehicle is used to send the second power transmission operation identification message to the first new energy engineering vehicle. Then it is determined whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message. In the case of determining that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the high-voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle are connected to control the second new energy engineering vehicle to supplement the power of the first new energy engineering vehicle. When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, the present application controls the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle, and can identify the information of the new energy engineering vehicle through the first power transmission operation identification message and the second power transmission operation identification message, and provide necessary information interaction confirmation for the connection of the high-voltage circuit, thereby realizing the power transfer between the first new energy engineering vehicle and the second new energy engineering vehicle, and increasing the operation time of the first new energy engineering vehicle.

[0096] The present application also provides a new energy engineering vehicle charging control system, which may include:

[0097] Controller;

[0098] a first new energy engineering vehicle in communication with the controller and configured to receive electrical energy provided by a second new energy engineering vehicle;

[0099] The second new energy engineering vehicle communicates with the controller and the first new energy engineering vehicle respectively, and is configured to supplement power for the first new energy engineering vehicle.

[0100] Specifically, the new energy engineering vehicle power replenishment control system includes a controller, a first new energy engineering vehicle and a second new energy engineering vehicle. The controller can be used to control the second new energy engineering vehicle to replenish power for the first new energy engineering vehicle. The first new energy engineering vehicle communicates with the controller and can be used to receive the electric energy provided by the second new energy engineering vehicle. The second new energy engineering vehicle communicates with the controller and the first new energy engineering vehicle respectively, and can be used to replenish power for the first new energy engineering vehicle. In this way, the operating time of the first new energy engineering vehicle can be increased.

[0101] In an embodiment of the present application, the first new energy engineering vehicle may include:

[0102] The power-up start switch is configured to enable the first new energy engineering vehicle and the second new energy engineering vehicle to enter a high-voltage circuit connection procedure when the power-up start switch is closed;

[0103] The battery management module of the first new energy engineering vehicle is configured to monitor the charging status of the first new energy engineering vehicle.

[0104] Specifically, the first new energy engineering vehicle may include a charging start switch and a battery management module of the first new energy engineering vehicle. When the charging start switch is closed, the controller may send a charging start switch closing signal to the first new energy engineering vehicle, and send a circuit connection enable instruction through the first new energy engineering vehicle, so that the first new energy engineering vehicle and the second new energy engineering vehicle enter the high-voltage circuit connection procedure. The battery management module of the first new energy engineering vehicle may monitor the charging status of the fast charging interface of the first new energy engineering vehicle.

[0105] In the embodiment of the present application, the second new energy engineering vehicle may include:

[0106] The battery management module of the second new energy engineering vehicle is configured to monitor the power supply status of the second new energy engineering vehicle.

[0107] Specifically, the second new energy engineering vehicle may include a battery management module of the second new energy engineering vehicle. The battery management module of the second new energy engineering vehicle may be used to monitor the power supply status of the fast charging interface of the second new energy engineering vehicle.

[0108] An embodiment of the present application also provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned control method for replenishing power for new energy engineering vehicles.

[0109] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0110] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0111] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0112] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0113] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0114] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0115] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0116] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0117] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A control method for replenishing power for new energy engineering vehicles, characterized in that: A controller applied to a power replenishment control system of a new energy engineering vehicle, the controller communicating with a first new energy engineering vehicle and a second new energy engineering vehicle, the control method comprising: connecting the first new energy engineering vehicle and the second new energy engineering vehicle; Controlling the control unit of the first new energy engineering vehicle to send a first power transmission operation identification message to the second new energy engineering vehicle, and controlling the control unit of the second new energy engineering vehicle to send a second power transmission operation identification message to the first new energy engineering vehicle, while controlling the second new energy engineering vehicle not to drive; Determine whether the first new energy engineering vehicle receives the second power transmission operation identification message, and whether the second new energy engineering vehicle receives the first power transmission operation identification message; When it is determined that the first new energy engineering vehicle receives the second power transmission operation identification message and the second new energy engineering vehicle receives the first power transmission operation identification message, connecting the high voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle to control the second new energy engineering vehicle to supplement power for the first new energy engineering vehicle; Wherein, the high-voltage circuit connecting the first new energy engineering vehicle and the second new energy engineering vehicle comprises: Controlling the main negative relay of the first new energy engineering vehicle to be disconnected; Controlling the positive and negative charging relays of the first new energy engineering vehicle and the second new energy engineering vehicle to close; The pre-charging module of the first new energy engineering vehicle is enabled to complete the connection of the high voltage circuits of the first new energy engineering vehicle and the second new energy engineering vehicle.

2. The control method according to claim 1, characterized in that: The control method further comprises: In the case where it is determined that the first new energy engineering vehicle has not received the second power transmission operation identification message, determining that the first new energy engineering vehicle is in a DC fast charging mode; When it is determined that the second new energy engineering vehicle has not received the first power transmission operation identification message, it is determined that the second new energy engineering vehicle is in a DC fast charging mode.

3. The control method according to claim 1, characterized in that: The control unit controlling the first new energy engineering vehicle sends a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit controlling the second new energy engineering vehicle sends a second power transmission operation identification message to the first new energy engineering vehicle includes: Determine whether a power connection signal is received; When it is determined that the power connection signal is received, the control unit that controls the first new energy engineering vehicle sends a first power transmission operation identification message to the second new energy engineering vehicle, and the control unit that controls the second new energy engineering vehicle sends a second power transmission operation identification message to the first new energy engineering vehicle.

4. The control method according to claim 1, characterized in that: The control method further comprises: Determining whether the second new energy engineering vehicle meets a first preset condition and a second preset condition; When it is determined that the second new energy engineering vehicle satisfies the first preset condition and the second preset condition, the second new energy engineering vehicle is controlled to supplement power for the first new energy engineering vehicle.

5. The control method according to claim 4, characterized in that: The first preset condition is that the battery voltage range and power of the second new energy engineering vehicle match those of the first new energy engineering vehicle, and the second preset condition is that the remaining power of the second new energy engineering vehicle is greater than or equal to the sum of the required power of the first new energy engineering vehicle and the minimum operating power of the second new energy engineering vehicle.

6. The control method according to claim 1, characterized in that: The first new energy engineering vehicle includes a power-up start switch, and before the high-voltage circuit of the first new energy engineering vehicle and the second new energy engineering vehicle is connected, the method further includes: Control the power replenishment start switch to close, and send a power replenishment start switch closing signal to the first new energy engineering vehicle, so as to send a circuit connection enable instruction through the first new energy engineering vehicle, so that the first new energy engineering vehicle and the second new energy engineering vehicle enter the high-voltage circuit connection procedure.

7. The control method according to claim 1, characterized in that: The first new energy engineering vehicle and the second new energy engineering vehicle both include a battery management module, and before the high voltage circuit of the first new energy engineering vehicle and the second new energy engineering vehicle are connected, the method further includes: Turn off the insulation monitoring function of the battery management module of the first new energy engineering vehicle or the second new energy engineering vehicle.

8. A controller, characterized in that: include: a memory configured to store instructions; as well as The processor is configured to call the instruction from the memory and implement the control method for replenishing power of a new energy engineering vehicle according to any one of claims 1 to 7 when executing the instruction.

9. A new energy engineering vehicle power supply control system, characterized in that: include: A controller according to claim 8; a first new energy engineering vehicle, in communication with the controller and configured to receive electrical energy provided by a second new energy engineering vehicle; The second new energy engineering vehicle communicates with the controller and the first new energy engineering vehicle respectively, and is configured to supplement power for the first new energy engineering vehicle.

10. The new energy engineering vehicle power replenishment control system according to claim 9, characterized in that: The first new energy engineering vehicle includes: A power-up start switch, configured to cause the first new energy engineering vehicle and the second new energy engineering vehicle to enter a high-voltage circuit connection procedure when the power-up start switch is closed; The battery management module of the first new energy engineering vehicle is configured to monitor the charging status of the first new energy engineering vehicle.

11. The new energy engineering vehicle power replenishment control system according to claim 9, characterized in that: The second new energy engineering vehicle includes: The battery management module of the second new energy engineering vehicle is configured to monitor the power supply status of the second new energy engineering vehicle.

12. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions for enabling the machine to execute the control method for charging a new energy engineering vehicle according to any one of claims 1 to 7.

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