Control device for a pumping vehicle, pumping vehicle, and control method for a pumping vehicle

Abstract

The present invention relates to the field of vehicle control, and discloses a control device for a pumping vehicle, a pumping vehicle, and a control method for a pumping vehicle. The control device for a pumping vehicle includes a main control device, a power distribution device, a pumping device, an electric drive axle, a power supply battery, an engine, a first power on / off device, and a first motor; the main control device is respectively connected to the power distribution device, the pumping device, the electric drive axle, the power supply battery, the engine, the first power on / off device, and the first motor, the power distribution device is respectively connected to the power supply battery, the electric drive axle, and the first motor, the pumping device is connected to the first motor, and the engine is connected to the first motor through the first power on / off device. By providing the first power on / off device, the structure of the pumping vehicle is simplified. When the first power on / off device is turned on, the first motor and the engine drive the pump set together, and by controlling the state of the first motor, the output torque of the engine is at the optimal operating point, improving the efficiency of the first motor.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control, and particularly to a control device for a pumping vehicle, a pumping vehicle, and a control method for a pumping vehicle. Background Art

[0002] With the rapid development of new energy technologies, range-extended vehicles driven by fuel and electricity hybrids have been widely used. Generally, a range-extended vehicle includes a range extender and a power supply battery. Among them, the range extender includes an engine and a motor connected in series. When the power supply battery powers the range-extended vehicle, the range extender is used to provide additional electrical energy for the range-extended vehicle to travel, so as to increase the driving range of the range-extended vehicle. Generally, when the range-extended vehicle stops driving, the range extender no longer provides electrical energy, and the engine and the motor stop running together.

[0003] However, a range-extended pumping vehicle is a work vehicle for transporting concrete. Compared with other range-extended vehicles, a pumping vehicle also requires an additional motor to supply energy to the pump unit for pumping operations. Since the engine and the motor in the range extender are connected in series, if the pump unit is directly driven by the motor in the range extender, there will be a situation where the engine will run idly and consume additional power, thereby affecting the efficiency of the motor. In order to avoid the generator in the range extender running idly during pumping operations, existing pumping vehicles need to include at least two motors, one motor is connected to the engine group and serves as the range extender, and the other motor is used to supply energy to the pump unit. The need to set multiple motors in a pumping vehicle leads to the complication of the structure of the pumping vehicle. Summary of the Invention

[0004] The object of the present invention is to provide a device for solving the problem of the complication of the structure of a pumping vehicle.

[0005] To achieve the above object, in a first aspect, the present application provides a control device for a pumping vehicle. The control device for a pumping vehicle includes a main control device, a power distribution device, a pumping device, an electric drive axle, a power supply battery, an engine, a first power on / off device, and a first motor;

[0006] The main control device is respectively connected to the power distribution device, the pumping device, the electric drive axle, the power supply battery, the engine, the first power on / off device, and the first motor. The power distribution device is respectively connected to the power supply battery, the electric drive axle, and the first motor. The pumping device is connected to the first motor. The engine is connected to the first motor through the first power on / off device. The power distribution device is used to connect to an external power source;

[0007] The power distribution device is used to perform power distribution management on the power supply battery, the engine, the first motor, and the external power source. The pumping device is used to supply energy to the oil cylinder of the pumping vehicle. The electric drive axle is used to drive the pumping vehicle to travel;

[0008] The main control device is used to control the on / off of the first power on / off device according to the required power of the pumping device, the power supply of the power supply battery, and the power supply of the external power supply when the pumping vehicle is in the operation mode and the external power supply is connected.

[0009] The main control device is used to control the on / off of the first power on / off device according to the required power of the pumping device and the power supply of the power supply battery when the pumping vehicle is in the operation mode and the external power supply is disconnected.

[0010] Combined with the first aspect, in the first possible implementation manner, the control device of the pumping vehicle further includes a second power on / off device;

[0011] The first motor is connected to the pumping device through the second power on / off device;

[0012] The main control device is used to control the second power on / off device to be turned on and control the second power on / off device to be turned off when the pumping vehicle is in the driving mode;

[0013] The main control device is used to control the second power on / off device to be turned on when the pumping vehicle is in the operation mode.

[0014] Combined with the first aspect, in the second possible implementation manner, the control device of the pumping vehicle further includes an engine control device;

[0015] The main control device is connected to the engine through the engine control device;

[0016] The engine control device is used to control the engine to stop when the required power of the electric drive axle is less than or equal to the power supply of the power supply battery;

[0017] The engine control device is further used to control the engine to start when the required power of the electric drive axle is greater than the power supply of the power supply battery.

[0018] The engine control device is further used to control the start and stop of the engine according to the required power of the pumping device and the power supply of the power supply battery.

[0019] Combined with the first aspect, in the third possible implementation manner, the control device of the pumping vehicle further includes a DC-to-AC device and an AC-to-DC device;

[0020] The power distribution device is connected to the first motor through the DC-to-AC device, and the main control device is respectively connected to the engine, the first power on / off device, and the first motor through the DC-to-AC device;

[0021] The main control device is connected to the power distribution device through the AC-to-DC device, and the power distribution device is used to be connected to the external power supply through the AC-to-DC device.

[0022] Combined with the third possible implementation manner of the first aspect, in the fourth possible implementation manner, the pumping device includes a first pump group and at least one second pump group, the control device of the pumping vehicle further includes a second motor corresponding to the number of second pump groups, and the DC-AC conversion device includes a first current conversion sub-device and a second current conversion sub-device corresponding to the number of second pump groups;

[0023] The first pump group is sequentially connected to the power distribution device through a first motor and a first current conversion sub-device;

[0024] Each second pump group is sequentially connected to the power distribution device through a second motor and a second current conversion sub-device.

[0025] Combined with the first aspect, in the fifth possible implementation manner, the control device of the pumping vehicle further includes a battery management device;

[0026] The main control device is connected to the power supply battery through the battery management device;

[0027] The battery management device is used to control the state of the power supply battery and obtain the state parameters of the power supply battery.

[0028] Combined with the first aspect, in the sixth possible implementation manner, the control device of the pumping vehicle further includes a pumping control device;

[0029] The main control device is connected to the pumping device through the pumping control device;

[0030] The pumping control device is used to control the state of the pumping device and obtain the state parameters of the pumping device;

[0031] The main control device is used to determine the required power of the pumping device according to the state parameters of the pumping device.

[0032] Combined with the sixth possible implementation manner of the first aspect, in the seventh possible implementation manner, the control device of the pumping vehicle further includes a pressure sensor;

[0033] The pumping control device is connected to the pumping device through the pressure sensor;

[0034] The pumping control device is used to obtain the pressure parameters of the pumping device through the pressure sensor.

[0035] Combined with the first aspect, in the eighth possible implementation manner, the pumping device includes an acceleration control device and a braking control device;

[0036] The main control device is respectively connected to the acceleration control device and the braking control device;

[0037] The main control device is used to determine the required power of the electric drive axle according to the signal of the acceleration control device and / or the signal of the braking control device.

[0038] In a second aspect, the present application provides a pumping vehicle, including the control device of the pumping vehicle as in the first aspect.

[0039] In a third aspect, the present application provides a control method for a pumping vehicle, which is applied to the control device of the pumping vehicle as in the first aspect. The control method for the pumping vehicle includes:

[0040] When the pumping vehicle is in the working mode and the external power supply is connected, the main control device controls the on / off of the first power on / off device according to the required power of the pumping device, the power supply power of the power supply battery, and the power supply power of the external power supply;

[0041] When the pumping vehicle is in the working mode and the external power supply is disconnected, the main control device controls the on / off of the first power on / off device according to the required power of the pumping device and the power supply power of the power supply battery.

[0042] Combined with the third aspect, in a first possible implementation manner, when the pumping vehicle is in the working mode and the external power supply is connected, the main control device controls the on / off of the first power on / off device according to the required power of the pumping device, the power supply power of the power supply battery, and the power supply power of the external power supply, including:

[0043] The main control device calculates the sum of the power supply powers of the power supply battery and the external power supply according to the power supply power of the power supply battery and the power supply power of the external power supply;

[0044] When the pumping vehicle is in the working mode, the external power supply is connected, and the required power of the pumping device is greater than the sum of the power supply powers, the main control device controls the first power on / off device to be turned on, controls the engine to start, and controls the power supply battery to work;

[0045] When the pumping vehicle is in the working mode, the external power supply is connected, and the required power of the pumping device is less than or equal to the sum of the power supply powers, the main control device controls the first power on / off device to be turned off, controls the engine to stop, and controls the power supply battery to work.

[0046] Combined with the third aspect, in a second possible implementation manner, when the pumping vehicle is in the working mode and the external power supply is disconnected, the main control device controls the on / off of the first power on / off device according to the required power of the pumping device and the power supply power of the power supply battery, including:

[0047] When the pumping vehicle is in the working mode, the external power supply is disconnected, and the required power of the pumping device is greater than the power supply power of the power supply battery, the main control device controls the first power on / off device to be turned on, controls the engine to start, and controls the power supply battery to work;

[0048] When the main control device is in the operation mode of the pumping vehicle, disconnects the external power supply, and the required power of the pumping device is less than or equal to the power supply of the power supply battery, the main control device controls the first power on / off device to disconnect, controls the engine to stop, and controls the power supply battery to work.

[0049] The present application provides a control device for a pumping vehicle. The control device of the pumping vehicle includes a main control device, a power distribution device, a pumping device, an electric drive axle, a power supply battery, an engine, a first power on / off device, and a first motor. The main control device is respectively connected to the power distribution device, the pumping device, the electric drive axle, the power supply battery, the engine, the first power on / off device, and the first motor. The power distribution device is respectively connected to the power supply battery, the electric drive axle, and the first motor. The pumping device is connected to the first motor. The engine is connected to the first motor through the first power on / off device. By setting the first power on / off device, the structure of the pumping vehicle is simplified, so that the first motor and the engine can independently drive the pumping device respectively during the operation of the pumping vehicle, and the first motor and the engine can also drive the pumping device together. When the first power on / off device is disconnected, the engine stops and the first motor drives the pumping device alone. When the first power on / off device is turned on, the first motor and the engine drive the pumping device together. By controlling the state of the first motor, the output torque of the engine is at the optimal operating point, the efficiency of the first motor is improved, and thus the operation efficiency of the pumping vehicle is improved. Description of the Drawings

[0050] The drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. They are used together with the following specific embodiments to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention. In the drawings:

[0051] Figure 1 The first structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application is shown;

[0052] Figure 2 The second structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application is shown;

[0053] Figure 3 The third structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application is shown;

[0054] Figure 4 The fourth structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application is shown;

[0055] Figure 5 The fifth structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application is shown;

[0056] Figure 6The flowchart of the control method for a pumping vehicle provided by an embodiment of the present application is shown.

[0057] Description of Reference Numerals

[0058] 100 - Control device of the pumping vehicle, 200 - External power supply; 1010 - Main control device, 1020 - Power distribution device, 1030 - Pumping device, 1040 - Electric drive axle, 1050 - Power supply battery, 1070 - Second power on / off device, 1080 - Engine control device, 1090 - DC - AC conversion device, 1100 - AC - DC conversion device, 1110 - Second motor, 1120 - Battery management device, 1130 - Pumping control device, 1140 - Pressure sensor, 1150 - Acceleration control device, 1160 - Brake control device; 1031 - First pump group, 1032 - Second pump group; 1061 - Engine, 1062 - First power on / off device, 1063 - First motor; 1091 - First current conversion sub - device, 1092 - Second current conversion sub - device. Detailed Embodiments

[0059] The following will specifically describe the specific embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.

[0060] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0061] Hereinafter, the terms "including", "having" and their cognates that can be used in various embodiments of the present invention are only intended to represent specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or increasing the possibility of one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0062] In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0063] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in a general use dictionary) will be interpreted as having the same meaning as their contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in various embodiments of the present invention.

[0064] Embodiment 1

[0065] Please refer to Figure 1 , Figure 1 which shows a first schematic structural diagram of a control device for a pumping vehicle provided by an embodiment of the present application.

[0066] In an embodiment of the present application, the control device 100 of the pumping vehicle includes a main control device 1010, a power distribution device 1020, a pumping device 1030, an electric drive axle 1040, a power supply battery 1050, an engine 1061, a first power on / off device 1062, and a first motor 1063;

[0067] The main control device 1010 is respectively connected to the power distribution device 1020, the pumping device 1030, the electric drive axle 1040, the power supply battery 1050, the engine 1061, the first power on / off device 1062, and the first motor 1063. The power distribution device 1020 is respectively connected to the power supply battery 1050, the electric drive axle 1040, and the first motor 1063. The pumping device 1030 is connected to the first motor 1063. The engine 1061 is connected to the first motor 1063 through the first power on / off device 1062. The power distribution device 1020 is used to connect to an external power supply 200;

[0068] The power distribution device 1020 is used for power distribution management of the power supply battery 1050, the engine 1061, the first motor 1063, and the external power supply 200. The pumping device 1030 is used to supply energy to the hydraulic execution device of the pumping vehicle. The electric drive axle 1040 is used to drive the pumping vehicle to travel;

[0069] The main control device 1010 is used to control the on / off of the first power on / off device 1062 according to the required power of the pumping device 1030, the power supply power of the power supply battery 1050, and the power supply power of the external power supply 200 when the pumping vehicle is in the working mode and the external power supply 200 is connected;

[0070] The main control device 1010 is used to control the on / off of the first power on / off device 1062 according to the required power of the pumping device 1030 and the power supply power of the power supply battery 1050 when the pumping vehicle is in the working mode and the external power supply 200 is disconnected.

[0071] The type of the power distribution device 1020 is set according to actual requirements and can be a Power Distribution Unit (PDU), which is not limited herein. The main control device 1010 uses the power distribution device 1020 to manage the power distribution of the power supply battery 1050, the engine 1061, the first motor 1063, and the external power supply 200, and then distributes the power supply to the electric drive axle 1040 or distributes the power supply to the first motor 1063.

[0072] When the electric drive axle 1040 integrates a DC-AC conversion circuit, the electric drive axle 1040 is directly connected to the power distribution device 1020. When the electric drive axle 1040 does not integrate a DC-AC conversion circuit, the electric drive axle 1040 is connected to the power distribution device 1020 through a DC-AC conversion circuit. The electric drive axle 1040 is used to convert the obtained electric energy into mechanical energy to drive the pumping vehicle to travel. The first motor 1063 is used to convert the obtained electric energy into mechanical energy to supply energy to the pumping device 1030. The pumping device 1030 is connected to the hydraulic actuating device through a hydraulic pipeline. The pumping device 1030 is used to convert the obtained mechanical energy into hydraulic potential energy to supply energy to the hydraulic actuating device of the pumping vehicle and drive the hydraulic actuating device to perform pumping operations. It should be understood that the pumping device 1030 can be a device such as a hydraulic pump that provides hydraulic energy to the hydraulic actuating device, which is not limited herein.

[0073] When the pumping vehicle is in the operation mode, the first motor 1063 needs to drive the pumping device 1030 to perform pumping operations. Since the motor is connected in series with the engine 1061, the engine 1061 idles when the pumping vehicle is operating. By controlling the disconnection of the first power on / off device 1062, the connection relationship between the motor and the engine 1061 is released, thereby avoiding the idling of the engine 1061 when the pumping vehicle is operating. Specifically, the main control device 1010 is used to determine whether the engine 1061 needs to be started according to the required power of the pumping device 1030, the power supply power of the power supply battery 1050, and the power supply power of the external power supply 200 when the pumping vehicle is in the operation mode and the external power supply 200 is connected. The main control device 1010 is also used to determine whether the engine 1061 needs to be started according to the required power of the pumping device 1030 and the power supply power of the power supply battery 1050 when the pumping vehicle is in the operation mode and the external power supply 200 is disconnected.

[0074] When the engine 1061 needs to be started during the operation of the pumping vehicle, the main control device 1010 controls the first power on / off device 1062 to be turned on, and the engine 1061 is connected in series with the first motor 1063. When the engine 1061 does not need to be started during the operation of the pumping vehicle, the main control device 1010 controls the first power on / off device 1062 to be turned off, and the engine 1061 is disconnected from the first motor 1063, so that the first motor 1063 can be started independently. By controlling the on / off of the first power on / off device 1062, a transfer case is not provided between the first motor 1063 and the engine 1061, and it is also possible to achieve that the first motor 1063 and the engine 1061 can be started independently during the operation of the pumping vehicle, avoiding the need for the engine 1061 to idle when the engine 1061 needs to be stopped, which consumes additional power. At the same time, the first motor 1063 and the engine 1061 can form an extended-range device to drive the vehicle. At the same time, the first motor 1063 can also be used to drive the pumping device 1030. When the first power on / off device 1062 is turned off, the engine 1061 stops and the first motor 1063 drives the pumping device 1030 alone. When the first power on / off device 1062 is turned on, the first motor 1063 and the engine 1061 drive the pumping device 1030 together. By controlling the state of the first motor 1063, the output torque of the engine 1061 is at the optimal operating point, reducing the energy loss during the operation of the pumping vehicle, improving the efficiency of the first motor 1063, and thus improving the operation efficiency of the pumping vehicle.

[0075] Please refer to Figure 2 , Figure 2 Fig. shows a second schematic structural diagram of the control device of the pumping vehicle provided by the embodiment of the present application.

[0076] In the embodiment of the present application, the control device 100 of the pumping vehicle further includes a second power on / off device 1070;

[0077] The first motor 1063 is connected to the pumping device 1030 through the second power on / off device 1070, and the main control device 1010 is connected to the second power on / off device 1070;

[0078] The main control device 1010 is configured to control the first power on / off device 1062 to be turned on and control the second power on / off device 1070 to be turned off when the pumping vehicle is in the driving mode;

[0079] The main control device 1010 is configured to control the second power on / off device 1070 to be turned on when the pumping vehicle is in the operation mode.

[0080] One end of the first power on-off device 1062 is connected to the engine 1061 through the input-output interface, and the other end of the first power on-off device 1062 is connected to the first motor 1063 through the input-output interface. One end of the second power on-off device 1070 is connected to the pumping device 1030 through the input-output interface, and the other end of the second power on-off device 1070 is connected to the first motor 1063 through the input-output interface. It should be understood that the types of the first power on-off device 1062 and the second on-off device are set according to actual requirements, and can be devices with on and off functions such as friction plate clutches, electromagnetic clutches, and toothpick clutches, which are not limited herein. The engine 1061, the first motor 1063, the first power on-off device 1062, the second power on-off device 1070, and the pumping device 1030 can be arbitrarily combined into different assemblies. Specifically, the first power on-off device 1062 can be turned on so that the engine 1061, the first motor 1063, and the first power on-off device 1062 are combined into an extended-range device; or the first power on-off device 1062 can be turned on and the second power on-off device 1070 can be turned on, and the first motor 1063, the first power on-off device 1062, and the second power on-off device 1070 are combined into a motor assembly.

[0081] When the main control device 1010 is used for the pumping vehicle in the driving mode, it controls the second power on-off device 1070 to be turned off to avoid additional energy consumption of the pumping device 1030 and improve the driving efficiency of the pumping vehicle. When the main control device 1010 is used for the pumping vehicle in the operation mode, it controls the second power on-off device 1070 to be turned on, and the first motor 1063 is connected in series with the pumping device 1030 to supply energy to the pumping device 1030 through the first motor 1063.

[0082] In the embodiment of the present application, the control device 100 of the pumping vehicle further includes an engine 1061 control device 1080;

[0083] The main control device 1010 is connected to the engine 1061 through the engine 1061 control device 1080;

[0084] The engine 1061 control device 1080 is used to control the engine 1061 to stop when the required power of the electric drive axle 1040 is less than or equal to the power supply of the power supply battery 1050;

[0085] The engine 1061 control device 1080 is further used to control the engine 1061 to start when the required power of the electric drive axle 1040 is greater than the power supply of the power supply battery 1050.

[0086] The engine 1061 control device 1080 is also used to control the start and stop of the engine 1061 according to the required power of the pumping device 1030 and the power supply of the power supply battery 1050.

[0087] When the pumping vehicle is in the driving mode, the main control device 1010 controls the first power on / off device 1062 to turn on. The main control device 1010 can control the start and stop of the engine 1061 through the engine 1061 control device 1080, and the main control device 1010 can also control the start and stop of the motor. Specifically, when the required power of the electric drive axle 1040 is less than or equal to the power supply of the power supply battery 1050, the first power on / off device 1062 can remain turned on, directly control the engine 1061 to stop and the first motor 1063 to stop. The power supply battery 1050 is used to supply power to the electric drive axle 1040, so that the pumping vehicle is in a pure electric driving mode.

[0088] The engine 1061 control device 1080 is also used to control the engine 1061 to start when the required power of the electric drive axle 1040 is greater than the power supply of the power supply battery 1050. The engine 1061 and the first motor 1063 are combined as a range extender device to supply power to the electric drive axle 1040. It should be understood that the type of the engine 1061 control device 1080 can be based on actual requirements, such as an Electronic Control Unit (ECU), etc., which is not limited here. The engine 1061 control device 1080 is also used to collect the operating parameters of the engine 1061, such as the rotational speed, torque, and real-time fuel consumption rate of the engine 1061. The operating parameters of the engine 1061 are bench calibrated to obtain the optimal power generation curve with the smallest positive deviation between the required power and the discharge power of the engine 1061. When the engine 1061 starts, the optimal operating point of the engine 1061 at the current rotational speed is obtained according to the optimal power generation curve of the engine 1061, where the optimal operating point is the lowest point of the real-time fuel consumption rate of the engine 1061 at the current rotational speed. Similarly, the engine 1061 and the first motor 1063 can be combined to form a range extender device for bench calibration to obtain the optimal power generation curve of the range extender device at different rotational speeds.

[0089] When the pumping vehicle is in the operation mode and the required power of the electric drive axle 1040 is greater than the power supply of the power supply battery 1050, the engine 1061 is controlled to start. Specifically, if the required power of the electric drive axle 1040 is greater than or equal to the sum of the power supply of the power supply battery 1050 and the power generation power of the range extender device, the power supply battery 1050, the engine 1061, and the first motor 1063 are all started. The first motor 1063 is in the power generation state and the power supply battery 1050 is in the discharge state, so that the pumping vehicle is in the range-extended high-power mode. If the required power of the electric drive axle 1040 is less than the sum of the power supply of the power supply battery 1050 and the power generation power of the range extender device, and the required power of the electric drive axle 1040 is greater than the power supply of the power supply battery 1050, the main control device 1010 adjusts the power generation torque of the motor and controls the operation of the generator to be on the optimal power generation curve of the engine 1061, so that the pumping vehicle is in the range-extended assistance mode.

[0090] Please refer to Figure 3 , Figure 3 which shows the third structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application.

[0091] In the embodiment of the present application, the control device 100 of the pumping vehicle further includes a DC-AC conversion device 1090 and an AC-DC conversion device 1100;

[0092] The power distribution device 1020 is connected to the first motor 1063 through the DC-AC conversion device 1090, and the main control device 1010 is respectively connected to the engine 1061, the first power on-off device 1062, and the first motor 1063 through the DC-AC conversion device 1090;

[0093] The main control device 1010 is connected to the power distribution device 1020 through the AC-DC conversion device 1100, and the power distribution device 1020 is used to connect to the external power supply 200 through the AC-DC conversion device 1100.

[0094] When the main control device 1010 and the power distribution device 1020 cannot directly convert direct current and alternating current, the main control device 1010 transmits signals through the DC-AC conversion device 1090 to control the engine 1061, the first power on-off device 1062, the second power on-off device 1070, and the first motor 1063. The main control device 1010 controls the external power supply 200 through the AC-DC conversion device 1100 to supply energy to the first motor 1063 through the external power supply 200. The external power supply 200 can be calibrated by detecting the input current, input voltage, output current, and output voltage of the external power supply 200 to obtain the power supply of the external power supply 200.

[0095] In an embodiment of the present application, the pumping device 1030 includes a first pump group 1031 and at least one second pump group 1032. The control device 100 of the pumping vehicle further includes second motors 1110 corresponding to the number of the second pump groups 1032. The DC-AC conversion device 1090 includes a first current conversion sub-device 1091 and second current conversion sub-devices 1092 corresponding to the number of the second pump groups 1032.

[0096] The first pump group 1031 is sequentially connected to the power distribution device 1020 through the first motor 1063 and the first current conversion sub-device 1091.

[0097] Each second pump group 1032 is sequentially connected to the power distribution device 1020 through a second motor 1110 and a second current conversion sub-device 1092.

[0098] The pumping device 1030 can be a single-channel pump group or a multi-channel pump group. When the pumping device 1030 is a multi-channel pump group, motors and current conversion sub-devices need to be provided for each pump group correspondingly. Since the power required under different working conditions is different when the pumping vehicle is operating. The pumping device 1030 being a multi-channel pump group including the first pump group 1031 and at least one second pump group 1032 can reduce the energy loss when the pump group idles and improve the energy utilization efficiency of the pumping vehicle. For ease of understanding, only one second pump group 1032, one second motor 1110 and one second current conversion sub-device 1092 are shown in the figure.

[0099] In an embodiment of the present application, the control device 100 of the pumping vehicle further includes a battery management device 1120;

[0100] The main control device 1010 is connected to the power supply battery 1050 through the battery management device 1120;

[0101] The battery management device 1120 is used to control the state of the power supply battery 1050 and obtain the operating parameters of the power supply battery 1050.

[0102] The main control device 1010 controls the state of the power supply battery 1050 through the battery management device 1120, where the state of the power supply battery 1050 includes the charging state and the discharging state. The battery management device 1120 is used to obtain the operating parameters of the power supply battery 1050, where the operating parameters of the power supply battery 1050 can be parameters such as the voltage, temperature and current of the power supply battery 1050, which are not limited herein. The charging power and the power supply of the power supply battery 1050 can be obtained through the charge and discharge tests of the power supply battery 1050. The type of the battery management device 1120 is set according to actual needs and can be a battery management system (BMS), etc., which is not limited herein.

[0103] In an embodiment of the present application, the control device 100 of the pumping vehicle further includes a pumping control device 1130;

[0104] The main control device 1010 is connected to the pumping device 1030 through the pumping control device 1130;

[0105] The pumping control device 1130 is used to control the state of the pumping device 1030 and obtain the operating parameters of the pumping device 1030;

[0106] The main control device 1010 is used to determine the required power of the pumping device 1030 according to the state parameters of the pumping device 1030.

[0107] The main control device 1010 controls the state of the pumping device 1030 through the pumping control device 1130. The pumping control device 1130 is used to obtain the operating parameters of the pumping device 1030. Among them, the operating parameters of the pumping device 1030 include parameters such as the displacement opening of the pumping device 1030, the pump group speed, and the pump group pressure, which will not be elaborated here. The type of the pumping control device 1130 is set according to actual needs and can be a Power Control Unit (PCU), etc., which is not limited here. The main control device 1010 is used to determine the required power of the pumping device 1030 according to the state parameters of the pumping device 1030. The main control device 1010 controls the pumping control device 1130 to determine the required power of the pumping device 1030 according to the state parameters such as the displacement opening, pump group speed, and pump group pressure of the pumping device 1030, as well as other parameters such as the displacement and total efficiency of the pumping device 1030, so as to control the pumping device 1030 to perform pumping operations.

[0108] In an embodiment of the present application, the control device 100 of the pumping vehicle further includes a pressure sensor 1140;

[0109] The pumping control device 1130 is connected to the pumping device 1030 through the pressure sensor 1140;

[0110] The pumping control device 1130 is used to obtain the pressure parameters of the pumping device 1030 through the pressure sensor 1140.

[0111] The pressure sensor 1140 is used to convert the hydraulic signal of the pumping device 1030 into an electrical signal, so that the pumping control device 1130 can obtain pressure parameters such as the pump group pressure of the pumping device 1030. By directly obtaining the pressure parameters of the pumping device 1030 through the pressure sensor 1140, the pumping control device 1130 can directly obtain the state parameters of the pumping device 1030, simplifying the structure of the control device 100 of the pumping vehicle.

[0112] In an embodiment of the present application, there are a pumping device 1030, an acceleration control device 1150, and a braking control device 1160;

[0113] The main control device 1010 is respectively connected to the acceleration control device 1150 and the braking control device 1160;

[0114] The main control device 1010 is configured to determine the required power of the electric drive axle 1040 according to the signal of the acceleration control device 1150 and / or the signal of the braking control device 1160.

[0115] The acceleration control device 1150 is configured to convert the acceleration action of the operator on the pumping vehicle into an electrical signal. The acceleration control device 1150 is configured to convert the braking action of the operator on the pumping vehicle into an electrical signal. The main control device 1010 is configured to determine the required power of the electric drive axle 1040 according to the signal of the acceleration control device 1150 and / or the signal of the braking control device 1160. The main control device 1010 controls the output speed and output torque of the electric drive axle 1040 so that the output power of the electric drive axle 1040 is equal to the required power, thereby controlling the driving of the pumping vehicle. The speed, torque, input voltage, and input current of the electric drive axle 1040 can be calibrated to obtain the efficiency of the electric drive axle 1040 in different output states.

[0116] Please refer to Figure 4 , Figure 4 which shows a fourth structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application.

[0117] The power distribution device 1020 is respectively connected to the power supply battery 1050, the electric drive axle 1040, the DC-AC conversion device 1090, and the AC-DC conversion device 1100 through high-voltage cables. The DC-AC conversion device 1090 is connected to the first motor 1063 through a high-voltage cable and a low-voltage cable. The DC-AC conversion device 1090 is connected to the engine 1061, the first power on / off device 1062, the second power on / off device 1070, and the first motor 1063 through low-voltage cables, and the engine 1061 control device 1080 is connected to the engine 1061 through a low-voltage cable. The main control device 1010 is respectively connected to the DC-AC conversion device 1090, the AC-DC conversion device 1100, the pumping control device 1130, the power distribution device 1020, the acceleration control device 1150, and the braking control device 1160 through low-voltage cables. The main control device 1010 is sequentially connected to the battery management device 1120 and the power supply battery 1050 through a low-voltage cable. In an embodiment of the present application, the control device 100 of the pumping vehicle includes a DC-AC conversion device 1090 and an engine 1061 control device 1080, and the main control device 1010 is connected to the engine 1061 control device 1080 through the DC-AC conversion device 1090.

[0118] The present application provides a control device for a pumping vehicle. The control device of the pumping vehicle includes a main control device, a power distribution device, a pumping device, an electric drive axle, a power supply battery, an engine, a first power on / off device, and a first motor. The main control device is respectively connected to the power distribution device, the pumping device, the electric drive axle, the power supply battery, the engine, the first power on / off device, and the first motor. The power distribution device is respectively connected to the power supply battery, the electric drive axle, and the first motor. The pumping device is connected to the first motor. The engine is connected to the first motor through the first power on / off device. By providing the first power on / off device, the structure of the pumping vehicle is simplified, so that the first motor and the engine can independently drive the pumping device respectively when the pumping vehicle is operating, and the first motor and the engine can also drive the pumping device together. When the first power on / off device is turned off, the engine stops and the first motor drives the pumping device alone. When the first power on / off device is turned on, the first motor and the engine drive the pumping device together. By controlling the state of the first motor, the output torque of the engine is at the optimal operating point, improving the efficiency of the first motor and further improving the operating efficiency of the pumping vehicle.

[0119] The embodiment of the present application also provides a pumping vehicle, including the control device 100 of the pumping vehicle as in Embodiment 1.

[0120] The pumping vehicle further includes other equipment components such as a pumping execution device, an oil cylinder, wheels, and a chassis. The other equipment components are set according to actual needs and are not limited herein. The engine 1061 and the motor of the pumping vehicle can be independently started and stopped, improving the operating efficiency of the pumping vehicle.

[0121] Please refer to Figure 5 , Figure 5 which shows the fifth structural schematic diagram of the control device of the pumping vehicle provided by the embodiment of the present application.

[0122] In the embodiment of the present application, the control device 100 of the pumping vehicle includes a pumping control device 1130, a pressure sensor 1140, and a second on / off device. The pumping device 1030 includes a first pump group 1031. The pumping control device 1130 is connected to the first pump group 1031 through the pressure sensor 1140. The first motor 1063 is connected to the first pump group 1031 through the second on / off device.

[0123] Embodiment 2

[0124] Please refer to Figure 6 , Figure 6 which shows the flowchart of the control method of the pumping vehicle provided by the embodiment of the present application. Figure 6 The control method of the pumping vehicle in Figure 6 is applied to the control device 100 of the pumping vehicle as in Embodiment 1,

[0125] In S310, when the pumping vehicle is in the operation mode and the external power supply 200 is turned on, the main control device 1010 controls the on / off of the first power on / off device 1062 according to the required power of the pumping device 1030, the power supply of the power supply battery 1050, and the power supply of the external power supply 200.

[0126] When the pumping vehicle is in the operation mode and the external power supply 200 is turned on, the main control device 1010 determines whether the engine 1061 needs to be started according to the required power of the pumping device 1030, the power supply of the power supply battery 1050, and the power supply of the external power supply 200, and then controls the on / off of the first power on / off device 1062.

[0127] In an embodiment of the present application, when the pumping vehicle is in the operation mode and the external power supply 200 is turned on, the main control device 1010 controls the on / off of the first power on / off device 1062 according to the required power of the pumping device 1030, the power supply of the power supply battery 1050, and the power supply of the external power supply 200, including:

[0128] The main control device 1010 calculates the sum of the power supplies of the power supply battery 1050 and the external power supply 200 according to the power supply of the power supply battery 1050 and the power supply of the external power supply 200.

[0129] When the pumping vehicle is in the operation mode, the external power supply 200 is turned on, and the required power of the pumping device 1030 is greater than the sum of the power supplies, the main control device 1010 controls the first power on / off device 1062 to be turned on, controls the engine 1061 to be started, and controls the power supply battery 1050 to work.

[0130] When the pumping vehicle is in the operation mode, the external power supply 200 is turned on, and the required power of the pumping device 1030 is less than or equal to the sum of the power supplies, the main control device 1010 controls the first power on / off device 1062 to be turned off, controls the engine 1061 to stop, and controls the power supply battery 1050 to work.

[0131] The main control device 1010 calculates the sum of the power supplies of the power supply battery 1050 and the external power supply 200 according to the power supply of the power supply battery 1050 and the power supply of the external power supply 200. When the pumping vehicle is in the operation mode, the external power supply 200 is turned on, and the required power of the pumping device 1030 is greater than the sum of the power supplies, the main control device 1010 determines that the engine 1061 needs to be started and controls the first power on / off device 1062 to be turned on. When the engine 1061 is started, it is determined whether the sum of the power supply of the external power supply 200 and the power generation power of the engine 1061 is greater than the required power of the pumping device 1030.

[0132] When controlling the operation of the power supply battery 1050, the operation of the power supply battery 1050 can be in a charging state or a discharging state. When controlling the power supply battery 1050 not to operate, the power supply battery neither charges nor discharges. When the sum of the power supply power of the external power supply 200 and the power generation power of the engine 1061 is less than or equal to the required power of the pumping device 1030, the torque of the motor is increased, so that the output torque of the engine 1061 is reduced to the optimal operating point of the engine 1061, and the power supply battery 1050 is controlled to operate in a discharging state. When the sum of the power supply power of the external power supply 200 and the power generation power of the engine 1061 is less than or equal to the required power of the pumping device 1030, the torque of the motor is reduced, so that the output torque of the engine 1061 is increased to the optimal operating point of the engine 1061. The external power supply 200 is used to supply energy to the pumping device 1030 through the first motor 1063. The power supply battery 1050 is controlled to operate in a charging state, and the external power supply 200 charges the power supply battery 1050.

[0133] When the main control device 1010 is in the operation mode of the pumping vehicle, the external power supply 200 is turned on, and the required power of the pumping device 1030 is less than or equal to the sum of the power supply powers, the first power on / off device 1062 is controlled to disconnect, and it is determined whether the required power of the pumping device 1030 is greater than the power supply power of the external power supply 200. If the required power of the pumping device 1030 is greater than the power supply power of the external power supply 200, the engine 1061 stops, the power supply battery 1050 is controlled to operate in a discharging state, and the external power supply 200 and the power supply battery 1050 supply energy to the pumping device 1030 through the first motor 1063, so that the pumping vehicle is in the external power supply pure electric operation mode. If the required power of the pumping device 1030 is less than or equal to the power supply power of the external power supply 200, only the external power supply 200 supplies energy to the pumping device 1030 through the first motor 1063. The power supply battery 1050 is controlled to operate in a charging state, and the external power supply 200 charges the power supply battery 1050. So that the pumping vehicle is in the external power supply charging operation mode.

[0134] S320. When the main control device 1010 is in the operation mode of the pumping vehicle and the external power supply 200 is disconnected, the on / off of the first power on / off device 1062 is controlled according to the required power of the pumping device 1030 and the power supply power of the power supply battery 1050.

[0135] When the main control device 1010 is in the operation mode of the pumping vehicle and the external power supply 200 is disconnected, it is determined whether the engine 1061 needs to be started according to the required power of the pumping device 1030 and the power supply power of the power supply battery 1050.

[0136] When the engine 1061 needs to be started during the operation of the pumping vehicle, the main control device 1010 controls the first power switch 1062 to be turned on, and the engine 1061 is connected in series with the first motor 1063. When the engine 1061 does not need to be started during the operation of the pumping vehicle, the main control device 1010 controls the first power switch 1062 to be turned off, and the engine 1061 is disconnected from the first motor 1063, so that the first motor 1063 can be started independently. By controlling the on / off of the first power switch 1062, the first motor 1063 and the engine 1061 can be started independently during the operation of the pumping vehicle.

[0137] In an embodiment of the present application, when the pumping vehicle is in the operation mode and the external power supply 200 is disconnected, the main control device 1010 controls the on / off of the first power switch 1062 according to the required power of the pumping device 1030 and the power supply power of the power supply battery 1050, including:

[0138] When the pumping vehicle is in the operation mode, the external power supply 200 is disconnected, and the required power of the pumping device 1030 is greater than the power supply power of the power supply battery 1050, the main control device 1010 controls the first power switch 1062 to be turned on, controls the engine 1061 to start, and controls the power supply battery 1050 to work.

[0139] When the pumping vehicle is in the operation mode, the external power supply 200 is disconnected, and the required power of the pumping device 1030 is less than or equal to the power supply power of the power supply battery 1050, the main control device 1010 controls the first power switch 1062 to be turned off, controls the engine 1061 to stop, and controls the power supply battery 1050 to work.

[0140] When the pumping vehicle is in the operation mode, the external power supply 200 is disconnected, and the required power of the pumping device 1030 is greater than the power supply power of the power supply battery 1050, the main control device 1010 determines that the engine 1061 needs to be started, controls the first power switch 1062 to be turned on, controls the engine 1061 to start, and controls the power supply battery 1050 to work in the discharging state. The main control device 1010 determines whether the torque of the engine 1061 is equal to the torque corresponding to the optimal operating point to control the operating state of the first motor 1063, where the operating state of the first motor 1063 includes the power generation state, the electric state, and the idling state.

[0141] Specifically, if the torque of the prime mover is less than the torque corresponding to the optimal operating point, the first motor 1063 is controlled to be in the power generation state, so that the output torque of the engine 1061 increases to the optimal operating point of the engine 1061. If the torque of the prime mover is greater than the torque corresponding to the optimal operating point, the first motor 1063 is controlled to be in the electric state, so that the output torque of the engine 1061 decreases to the optimal operating point of the engine 1061. If the torque of the prime mover is equal to the torque corresponding to the optimal operating point, the first motor 1063 is controlled to be in the idling state, so that the engine 1061 supplies energy at the lowest point of the real-time fuel consumption rate at the current rotational speed.

[0142] When the main control device 1010 is in the operation mode of the pumping vehicle, disconnects the external power supply 200, and the required power of the pumping device 1030 is less than or equal to the power supply power of the power supply battery 1050, the main control device 1010 controls the first power on / off device 1062 to disconnect. The main control device 1010 controls the engine 1061 to stop, and controls the power supply battery 1050 to operate in the discharge state to supply energy through the power supply battery 1050.

[0143] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present application. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0144] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0145] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0146] It should also be noted that the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising the element.

[0147] The above are only embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A control device (100) for a pumping vehicle, characterized in that, The control device (100) of the pumping vehicle includes a main control device (1010), a power distribution device (1020), a pumping device (1030), an electric drive axle (1040), a power supply battery (1050), an engine (1061), a first power on / off device (1062), and a first motor (1063); The main control device (1010) is respectively connected to the power distribution device (1020), the pumping device (1030), the electric drive axle (1040), the power supply battery (1050), the engine (1061), the first power on / off device (1062), and the first motor (1063). The power distribution device (1020) is respectively connected to the power supply battery (1050), the electric drive axle (1040), and the first motor (1063). The pumping device (1030) is connected to the first motor (1063). The engine (1061) is connected to the first motor (1063) through the first power on / off device (1062). The power distribution device (1020) is used to connect to an external power supply (200); The power distribution device (1020) is used to perform power distribution management on the power supply battery (1050), the engine (1061), the first motor (1063), and the external power supply (200). The pumping device (1030) is used to supply energy to the oil cylinder of the pumping vehicle. The electric drive axle (1040) is used to drive the pumping vehicle to travel; The main control device (1010) is used to control the on / off of the first power on / off device (1062) according to the required power of the pumping device (1030), the power supply power of the power supply battery (1050), and the power supply power of the external power supply (200) when the pumping vehicle is in the operation mode and the external power supply (200) is connected; The main control device (1010) is used to control the on / off of the first power on / off device (1062) according to the required power of the pumping device (1030) and the power supply power of the power supply battery (1050) when the pumping vehicle is in the operation mode and the external power supply (200) is disconnected; The control device (100) of the pumping vehicle further includes a battery management device (1120); The main control device (1010) is connected to the power supply battery (1050) through the battery management device (1120); The battery management device (1120) is used to control the state of the power supply battery (1050) and obtain the state parameters of the power supply battery (1050); The pumping device (1030) includes an acceleration control device (1150) and a braking control device (1160); The main control device (1010) is respectively connected to the acceleration control device (1150) and the braking control device (1160); The main control device (1010) is configured to determine the required power of the electric drive axle (1040) according to the signal of the acceleration control device (1150) and / or the signal of the braking control device (1160).

2. The control device (100) of a pumping vehicle according to claim 1, characterized in that, The control device (100) of the pumping vehicle further includes a second power on / off device (1070); The first motor (1063) is connected to the pumping device (1030) through the second power on / off device (1070); The main control device (1010) is configured to control the first power on / off device (1062) to be turned on and control the second power on / off device (1070) to be turned off when the pumping vehicle is in the driving mode; The main control device (1010) is configured to control the second power on / off device (1070) to be turned on when the pumping vehicle is in the working mode.

3. The control device (100) of a pumping vehicle according to claim 1, characterized in that, The control device (100) of the pumping vehicle further includes an engine control device (1080); The main control device (1010) is connected to the engine (1061) through the engine control device (1080); The engine control device (1080) is configured to control the engine (1061) to stop when the required power of the electric drive axle (1040) is less than or equal to the power supply of the power supply battery (1050); The engine control device (1080) is further configured to control the engine (1061) to start when the required power of the electric drive axle (1040) is greater than the power supply of the power supply battery (1050); The engine control device (1080) is further configured to control the start and stop of the engine (1061) according to the required power of the pumping device (1030) and the power supply of the power supply battery (1050).

4. The control device (100) of a pumping vehicle according to claim 1, characterized in that, The control device (100) of the pumping vehicle further includes a DC-AC converter (1090) and an AC-DC converter (1100); The power distribution device (1020) is connected to the first motor (1063) through the DC-AC converter (1090), and the main control device (1010) is respectively connected to the engine (1061), the first power on / off device (1062) and the first motor (1063) through the DC-AC converter (1090); The main control device (1010) is connected to the power distribution device (1020) through the AC-DC converter (1100), and the power distribution device (1020) is configured to be connected to the external power supply (200) through the AC-DC converter (1100).

5. The control device (100) of a pumping vehicle according to claim 4, characterized in that, The pumping device (1030) includes a first pump group (1031) and at least one second pump group (1032). The control device (100) of the pumping vehicle further includes second motors (1110) corresponding to the number of the second pump groups (1032). The DC-AC conversion device (1090) includes a first current conversion sub-device (1091) and second current conversion sub-devices (1092) corresponding to the number of the second pump groups (1032). The first pump group (1031) is sequentially connected to the power distribution device (1020) through the first motor (1063) and the first current conversion sub-device (1091). Each second pump group (1032) is sequentially connected to the power distribution device (1020) through one of the second motors (1110) and one of the second current conversion sub-devices (1092).

6. The control device (100) of a pumping vehicle according to claim 1, characterized in that, The control device (100) of the pumping vehicle further includes a pumping control device (1130). The main control device (1010) is connected to the pumping device (1030) through the pumping control device (1130). The pumping control device (1130) is configured to control the state of the pumping device (1030) and obtain state parameters of the pumping device (1030). The main control device (1010) is configured to determine the required power of the pumping device (1030) according to the state parameters of the pumping device (1030).

7. The control device (100) of a pumping vehicle according to claim 6, characterized in that, The control device (100) of the pumping vehicle further includes a pressure sensor (1140). The pumping control device (1130) is connected to the pumping device (1030) through the pressure sensor (1140). The pumping control device (1130) is configured to obtain pressure parameters of the pumping device (1030) through the pressure sensor (1140).

8. A pumping vehicle, characterized in that, Comprising the control device (100) of the pumping vehicle according to any one of claims 1 to 7.

9. A control method for a pumping vehicle, characterized in that, Applied to the control device (100) of the pumping vehicle according to any one of claims 1 to 7, the control method of the pumping vehicle includes: When the pumping vehicle is in the working mode and the external power supply (200) is turned on, the main control device (1010) controls the on / off of the first power on / off device (1062) according to the required power of the pumping device (1030), the power supply power of the power supply battery (1050), and the power supply power of the external power supply (200). When the pumping vehicle is in the working mode and the external power supply (200) is turned off, the main control device (1010) controls the on / off of the first power on / off device (1062) according to the required power of the pumping device (1030) and the power supply power of the power supply battery (1050).

10. The control method of the pumping vehicle according to claim 9, wherein, When the pumping vehicle is in the operation mode and the external power supply (200) is turned on, the main control device (1010) controls the on / off of the first power on / off device (1062) according to the required power of the pumping device (1030), the power supply of the power supply battery (1050), and the power supply of the external power supply (200), including: The main control device (1010) calculates the sum of the power supplies of the power supply battery (1050) and the external power supply (200) according to the power supply of the power supply battery (1050) and the power supply of the external power supply (200). When the pumping vehicle is in the operation mode, the external power supply (200) is turned on, and the required power of the pumping device (1030) is greater than the sum of the power supplies, the main control device (1010) controls the first power on / off device (1062) to turn on, controls the engine (1061) to start, and controls the power supply battery (1050) to operate. When the pumping vehicle is in the operation mode, the external power supply (200) is turned on, and the required power of the pumping device (1030) is less than or equal to the sum of the power supplies, the main control device (1010) controls the first power on / off device (1062) to turn off, controls the engine (1061) to stop, and controls the power supply battery (1050) to operate.

11. The control method of the pumping vehicle according to claim 9, characterized in that, When the pumping vehicle is in the operation mode and the external power supply (200) is turned off, the main control device (1010) controls the on / off of the first power on / off device (1062) according to the required power of the pumping device (1030) and the power supply of the power supply battery (1050), including: When the pumping vehicle is in the operation mode, the external power supply (200) is turned off, and the required power of the pumping device (1030) is greater than the power supply of the power supply battery (1050), the main control device (1010) controls the first power on / off device (s1062) to turn on, controls the engine (1061) to start, and controls the power supply battery (1050) to operate. When the pumping vehicle is in the operation mode, the external power supply (200) is turned off, and the required power of the pumping device (1030) is less than or equal to the power supply of the power supply battery (1050), the main control device (1010) controls the first power on / off device (1062) to turn off, controls the engine (1061) to stop, and controls the power supply battery (1050) to operate.

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