Method for determining pumpable volume of electric pumping device and device therefor

Abstract

The invention discloses a method and device for determining the pumpable volume of electric pumping equipment, and belongs to the technical field of engineering machinery. The method for determining the pumpable capacity of the electric pumping equipment comprises the steps that during the operation period when the electric pumping equipment is in a working state, the initial operation electric quantity of the electric pumping equipment is obtained; determining the consumed power and the pumped volume of the electric pumping equipment; and according to the initial operation electric quantity, the consumed power and the pumped quantity, the pumpable quantity of the electric pumping equipment is determined. According to the method for determining the pumpable volume of the electric pumping equipment, the pumpable volume of the electric pumping equipment can be determined in real time, so that an operator of the electric pumping equipment can master the pumpable volume of the electric pumping equipment in real time, and the applicability of the electric pumping equipment is improved; and construction failure caused by electric quantity exhaustion is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to a method and a device for determining the pumpable volume of an electric pumping device. Background Art

[0002] Electric pumping equipment can achieve high efficiency and zero emission. Since electric pumping equipment is a high-power, high-energy mechanical power equipment. In each construction process, the amount of volume that can be pumped by the electric pumping equipment will directly affect the construction time and the amount of fluid transported. This will in turn affect the project progress and project planning. Therefore, how to predict the amount of volume that can be pumped by the electric pumping equipment during each construction process is a technical problem to be solved. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a method and device, processor, electric pumping equipment and machine-readable storage medium for determining the pumpable volume of an electric pumping equipment, so as to solve the technical problem in the prior art of how to predict the pumpable volume of an electric pumping equipment during each construction process.

[0004] In order to achieve the above-mentioned object, the present application provides, in a first aspect, a method for determining the pumpable volume of an electric pumping device, comprising:

[0005] During the operation of the electric pumping equipment in the working state, obtaining the initial operation power of the electric pumping equipment;

[0006] Determine the power consumed and volume pumped by electric pumping equipment;

[0007] Determine the pumpable volume of the electric pumping equipment based on the initial power consumption, power consumed and volume pumped.

[0008] In an embodiment of the present application, the pumpable volume of the electric pumping equipment is determined based on the initial power of the operation, the power consumed and the pumped volume, including: determining the remaining power of the electric pumping equipment based on the initial power of the operation and the power consumed; determining the pumpable volume of the electric pumping equipment based on the remaining power, the power consumed and the pumped volume.

[0009] In an embodiment of the present application, the pumpable volume of the electric pumping equipment is determined based on the remaining power, the consumed power and the pumped volume, including: determining the power consumption per unit volume based on the consumed power and the pumped volume; determining the pumpable volume based on the power consumption per unit volume and the remaining power.

[0010] In an embodiment of the present application, the pumpable volume of the electric pumping equipment is determined based on the initial power of the operation, the power consumed and the pumped volume, including: determining the operating time of the electric pumping equipment during the operation; determining the predicted maximum operating time of the electric pumping equipment based on the initial power of the operation, the power consumed and the operating time; determining the pumpable volume of the electric pumping equipment based on the predicted maximum operating time, the operating time and the pumped volume.

[0011] In an embodiment of the present application, the pumpable volume of the electric pumping equipment is determined based on the predicted maximum operable time, the operating time and the pumped volume, including: determining the pumping volume per unit time based on the operating time and the pumped volume; determining the pumpable volume based on the pumping volume per unit time and the predicted maximum operable time.

[0012] In an embodiment of the present application, the predicted maximum operable time of the electric pumping equipment is determined based on the initial operation power, the consumed power and the operating time, including: determining the power consumption per unit time based on the consumed power and the operating time; determining the remaining power based on the initial operation power and the consumed power; and determining the predicted maximum operable time based on the remaining power and the power consumption per unit time.

[0013] In an embodiment of the present application, the pumpable volume of the electric pumping equipment is determined based on the initial operation power, the consumed power and the pumped volume, including: determining the charged volume and the operating time of the electric pumping equipment; determining the current power of the electric pumping equipment based on the initial operation power, the charged volume and the consumed power; determining the predicted charging power, the predicted maximum consumable power and the predicted maximum operating time based on the current power, the consumed power, the charged volume and the operating time; determining the pumpable volume of the electric pumping equipment based on the predicted maximum consumable power, the consumed power and the pumped volume; or determining the pumpable volume of the electric pumping equipment based on the predicted maximum operating time, the operating time and the pumped volume.

[0014] In the embodiment of the present application, the predicted charging power, the predicted maximum consumable power, and the predicted maximum operable time are determined according to the current power, the consumed power, the charged power, and the operating time, including determining the predicted charging power, the predicted maximum consumable power, and the predicted maximum operable time according to the following formula:

[0015] Q 充2 +Q b当前 ≥Q 消耗2

[0016]

[0017] Among them, Q 充2 To predict the charging capacity, Q 消耗2 To predict the maximum operable power, T2 To predict the maximum total operation time, (T 2 -T 1 ) is the predicted maximum operable time, Q b当前 is the current power, Q 充1 is the charged capacity, Q 消耗1 is the power consumed, T 1 The time for operation.

[0018] In an embodiment of the present application, the pumpable volume of the electric pumping equipment is determined based on the initial power of the operation, the consumed power and the pumped volume, and also includes: when the current power is greater than or equal to the initial power of the operation, determining the pumpable volume to be unlimited; when the current power is less than the initial power of the operation, determining the predicted charging power, the predicted maximum consumable power and the predicted maximum operating time based on the current power, the consumed power, the charged power and the operating time.

[0019] In the embodiment of the present application, determining the power consumption of the electric pumping device includes: recording the power consumption current and power consumption voltage of the electric pumping device in real time; determining the operating time of the electric pumping device during the operation; and determining the power consumption according to the power consumption current, power consumption voltage and operating time based on the following formula:

[0020]

[0021] Among them, Q 消耗 is the power consumed, U(t) is the power consumption voltage, I(t) is the power consumption current, T 1 The time for operation.

[0022] A second aspect of the present application provides a processor configured to execute the method for determining the pumpable volume of an electric pumping device provided according to any one of the above embodiments.

[0023] The third aspect of the present application provides a device for determining the pumpable volume of an electric pumping device, including: an initial operation power acquisition module, used to acquire the initial operation power of the electric pumping device during the operation of the electric pumping device in a working state; a module for determining the amount of work done, used to determine the consumed power and pumped volume of the electric pumping device; a module for determining the pumpable volume, used to determine the pumpable volume of the electric pumping device based on the initial operation power, consumed power and pumped volume. The third aspect of the present application provides an electric pumping device, including: the device for determining the pumpable volume of an electric pumping device provided in accordance with the above-mentioned embodiment, electrically connecting the battery cell and the pumping power device.

[0024] A fourth aspect of the present application provides a machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute a method for determining a pumping volume of an electric pumping device provided in accordance with any one of the above-mentioned embodiments.

[0025] Through the above technical scheme, the initial power, power consumption and pumped volume of the electric pumping equipment during the pumping construction period can be determined, and the subsequent pumpable volume of the electric pumping equipment during this pumping construction period can be determined based on the initial power, power consumption and pumped volume. The operator plans the pumping volume during this operation in advance based on the pumpable volume of the electric pumping equipment, thereby improving the applicability of the electric pump truck and avoiding the inability to work due to power exhaustion; in addition, since the pumpable volume is obtained based on the power consumption and the pumped volume, and the power consumption and the pumped volume will change in real time due to environmental factors and operator operations; therefore, during the pumping construction period, the pumpable volume will be adjusted in real time based on the actual power consumption and the pumped volume; therefore, the real-time adjustment of the pumpable volume will also prompt the operator that there is a change in the current working environment or equipment operation, which has an impact on the pumpable volume, and the operator can adjust the operation of the equipment or check the environmental factors.

[0026] 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

[0027] 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:

[0028] Figure 1 A schematic diagram of a flow chart of a method for determining a pumpable volume of an electric pumping device according to an embodiment of the present application is schematically shown;

[0029] Figure 2 Schematically shows Figure 1 A flowchart of a specific implementation of step S160;

[0030] Figure 3 Schematically shows Figure 1 A flowchart of another specific implementation of step S160;

[0031] Figure 4 A power system of an electric pump truck according to an embodiment of the present application is schematically shown;

[0032] Figure 5 A schematic diagram of the structure of a device for determining the pumpable volume of an electric pumping device according to an embodiment of the present application is schematically shown. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Figure 1 The flowchart of a method for determining the pumpable volume of an electric pumping device according to an embodiment of the present application is schematically shown. Figure 1 As shown, the embodiment of the present application provides a method for determining the pumpable volume of an electric pumping device, the electric pumping device includes a pure electric pump truck, and the method is described by taking the application of the method to a processor as an example. The method may include the following steps:

[0037] Step S120: while the electric pumping equipment is in operation, obtaining the initial power consumption of the electric pumping equipment.

[0038] Step S140: Determine the power consumption and pumped volume of the electric pumping equipment.

[0039] Step S160: Determine the pumpable volume of the electric pumping equipment according to the initial power consumption, the power consumed and the pumped volume.

[0040] It can be understood that the working state of the electric pumping equipment may include, for example, an operating state and a waiting state, and the operating state may include, for example, a pumping construction state. The electric pumping equipment is equipped with a built-in battery, and the initial operating power is, for example, the battery power at the beginning of the operation of the electric pumping equipment. The electric pumping equipment may include, for example, a superstructure power system and a chassis power system, and the superstructure power system and the chassis power system consume electrical energy during operation. The determination of the consumed power can be achieved, for example, by obtaining the integral of the electric power of the superstructure power system and the chassis power system over the operating time during the operation. Alternatively, the consumed power can also be determined based on the battery power reduction value during the operation. The pumped volume is the pumped volume of the electric pumping equipment during this operation.

[0041] Specifically, at the beginning of the operation, the processor obtains the initial power of the electric pumping device, and determines the power consumed and the pumped volume of the electric pumping device. Based on the initial power of the operation and the power consumed, at least the remaining power can be determined, and based on the proportional relationship between the power consumed and the pumped volume, the available pumpable volume of the electric pumping device can be determined in combination with the remaining power. Furthermore, the current available pumpable volume can be informed to the device operator through devices such as a display screen and a speaker.

[0042] Therefore, the method for determining the pumpable volume of the electric pumping equipment provided in the embodiment of the present application can obtain the pumpable volume of the electric pumping equipment during each operation. Accordingly, the electric pumping equipment can inform the equipment operator of the current pumpable volume, for example, through a display screen, a speaker, and other devices. The operator plans the pumping volume during this operation in advance based on the pumpable volume, so this method can improve the applicability of the electric pump truck and avoid the inability to construct due to exhaustion of electricity; in addition, since in this method, the pumpable volume is obtained based on the power consumed and the pumped volume, and the power consumed and the pumped volume will change in real time due to environmental factors and operator operations. Therefore, during this operation, the pumpable volume will be adjusted in real time according to the actual power consumed and the pumped volume. Therefore, the real-time adjustment of the pumpable volume will also prompt the operator that there is a change in the current working environment or equipment operation, which has an impact on the pumpable volume, and the operator can adjust the operation of the equipment or check the environmental factors.

[0043] A specific example is given below of the steps of the method for determining the pumpable volume of an electric pumping device provided in an embodiment of the present application.

[0044] In some embodiments, in step S140, determining the power consumption of the electric pumping device includes: recording the power consumption current and power consumption voltage of the electric pumping device in real time; determining the operating time of the electric pumping device during the operation; and determining the power consumption according to the power consumption current, power consumption voltage and operating time based on the following formula:

[0045]

[0046] Among them, Q 消耗 is the power consumed, U(t) is the power consumption voltage, I(t) is the power consumption current, T 1 The time for operation.

[0047] It is understandable that during the operation of the electric pumping equipment, its power consumption voltage and power consumption current will change due to the working conditions and the operator's operation, so the consumed voltage and consumed current recorded in real time will change over time, that is, there is a consumed voltage-time curve and a consumed current-time curve. Therefore, the consumed power determined in real time is determined by formula (0), that is, the consumed power is the integral of the product of the consumed voltage and the consumed current over time. Among them, the consumed voltage and consumed current refer to the overall voltage and current consumed by various electrical appliances of the electric pumping equipment during operation, and the various electrical appliances include but are not limited to the upper motor of the electric pumping equipment, electric air conditioner, etc. The consumed voltage and consumed current can be the superposition result of the voltage and current consumed by the above-mentioned various electrical appliances. The product of the consumed voltage and the consumed current U(t)I(t) may be, for example, the product of the consumed voltage and the consumed current of the electric pumping equipment as a whole; or the voltages and currents of various electrical appliances of the electric pumping equipment are measured independently, then the product of the consumed voltage and the consumed current may be, for example, U(t)I(t)=∑ j,k u j (t)i k (t)δ jk , where δ jk is the Kronecker function. In this expression, it means that the voltage and current of electrical appliances such as the upper motor and air conditioner are measured independently. The above electrical appliances each have electrical power, and the final power consumption is the integral of the sum of the above electrical powers over time.

[0048] In some embodiments, step S160 may include: determining the remaining power of the electric pumping equipment based on the initial power of the operation and the power consumed; determining the pumpable volume of the electric pumping equipment based on the remaining power, the power consumed and the pumped volume.

[0049] Specifically, the remaining power can be determined by the difference between the initial power of the operation and the power consumed.

[0050] Furthermore, determining the pumpable volume of the electric pumping equipment based on the remaining power, consumed power and pumped volume may include: determining the power consumption per unit volume based on the consumed power and the pumped volume; and determining the pumpable volume based on the power consumption per unit volume and the remaining power.

[0051] Specifically, the power consumption per unit volume is the power consumed per unit volume pumped, and can be determined, for example, based on the ratio of consumed power to pumped volume. The available volume can be determined as the ratio of remaining power to power consumption per unit volume.

[0052] In some embodiments, step S160 may include: determining the operating time of the electric pumping equipment during the operation; determining the predicted maximum operating time of the electric pumping equipment based on the initial power of the operation, the power consumed and the operating time; determining the pumpable volume of the electric pumping equipment based on the predicted maximum operating time, the operating time and the pumped volume.

[0053] It can be understood that during operation, the upper power system is powered on and the processor can obtain the electrical signal when the upper power system is powered on, and use the time when the electrical signal starts as the starting time of the elapsed operation time. The elapsed operation time is the difference between the current time and the starting time. The predicted maximum operable time is the maximum time period for the electric pumping equipment to maintain its operating state, starting from the time when the elapsed operation time ends.

[0054] Furthermore, the predicted maximum operable time of the electric pumping equipment is determined based on the initial operation power, the power consumed and the operating time, including: determining the power consumption per unit time based on the power consumed and the operating time; determining the remaining power based on the initial operation power and the power consumed; and determining the predicted maximum operable time based on the remaining power and the power consumption per unit time.

[0055] Based on the above embodiment, further, according to the predicted maximum operable time, the operating time and the pumped volume, the pumpable volume of the electric pumping equipment is determined, including:

[0056] Determine the volume pumped per unit time based on the time worked and the volume pumped;

[0057] Determine the volume that can be pumped based on the volume pumped per unit time and the predicted maximum operating time.

[0058] Based on the above embodiments, it can be seen that the method for determining the pumpable volume of an electric pumping equipment provided in the embodiments of the present application can predict the pumpable volume of the electric pumping equipment through the relationship between the consumed power and the remaining power, and can also determine the power consumption per unit time during the operation according to the consumed power and the operating time, and then determine the predicted maximum operating time through the power consumption per unit time and the remaining power, and use the predicted operating time and the pumped volume per unit time to determine the value of the pumpable volume.

[0059] The method for determining the pumpable volume of an electric pumping device provided in the embodiment of the present application also takes into account the situation where the electric pumping device is charged by an external power source.

[0060] In the case of charging with an external power source, taking a battery as an example, the battery will have existing power and supply power to electric pumping equipment, such as the upper power system and the chassis power system; and the external power source will also charge the battery.

[0061] Therefore, consider the case where the electric pump truck is charged during operation, see Figure 1 and Figure 2 As shown, in some embodiments, step S160 may also include:

[0062] Step S161, determining the charge amount and operation time of the electric pumping equipment;

[0063] Step S162, determining the current power of the electric pumping equipment according to the initial power of the operation, the charged power and the consumed power;

[0064] Step S164, determining the predicted charging power, the predicted maximum consumable power and the predicted maximum possible operating time according to the current power, the consumed power, the charged power and the operating time;

[0065] Step S165, determining the pumpable volume of the electric pumping equipment according to the predicted maximum consumable power, the consumed power and the pumped volume;

[0066] Alternatively, the pumpable volume of the electric pumping equipment is determined based on the predicted maximum operating time, the operating time and the pumped volume.

[0067] It can be understood that the predicted maximum consumable power refers to the maximum value of the power that can still be consumed by the electric pumping equipment during operation, determined based on the current power, consumed power, charged power and operating time; similarly, the predicted maximum operating time refers to the maximum time to maintain the current construction status.

[0068] Specifically, regarding the current power, the existing total power can be determined based on the sum of the initial power of the operation and the charged power, and the difference between the existing total power and the consumed power is determined as the current power.

[0069] Therefore, the method for determining the pumpable volume of an electric pumping device provided in the embodiment of the present application can determine the estimated maximum operable time based on the current power, consumed power, charged power and operating time, and predict the size of the charging power and the predicted maximum consumable power within the estimated maximum operable time, taking into account the charging of the electric pump truck. Moreover, the above process can be carried out in real time, that is, at any time, the processor executing the method can determine the predicted charging power, the predicted maximum consumable power and the predicted maximum operable time based on the above existing power and time data, so that the method for determining the pumpable volume of an electric pumping device provided in the embodiment of the present application can adjust the determined predicted charging power, the predicted maximum consumable power and the predicted maximum operable time in real time according to the current charging conditions and power consumption conditions. The above predicted data can ultimately be used to determine the pumpable volume. The pumpable volume can inform the operator of the influence of the current operation and charging environment on the predicted charging power, the predicted maximum consumable power and the predicted maximum operable time through the display, speaker and other devices of the pump truck. The operator can adjust the current operation of the electric pump truck and check the current charging environment according to the real-time changes in the pumpable volume.

[0070] Further, step S164 includes determining the predicted charging power, the predicted maximum consumable power and the predicted maximum operable time according to the following formula:

[0071] Q 充2 +Q b当前 ≥Q 消耗2 #(1)

[0072]

[0073] Among them, Q 充2 To predict the charging capacity, Q 消耗2 To predict the maximum operable power, T 2 To predict the maximum total operation time, (T 2 -T 1 ) is the predicted maximum operable time, Q b当前 is the current power, Q 充1 is the charged capacity, Q 消耗1 is the power consumed, T 1 The time for operation.

[0074] It can be understood that the sum of the predicted charging power and the current power must be greater than or equal to the predicted maximum consumable power. The predicted maximum total operation time refers to the total duration of this construction state.

[0075] Specifically, under the premise that the operating time, power consumed and charged amount have been determined, the predicted charging power, predicted maximum operable power, predicted maximum total operating time and predicted maximum operable time can be determined through formulas 1 to 3. After the predicted charging power, predicted maximum operable power and predicted maximum operable time are determined, the power consumption per cubic meter can be determined by the pumped volume and the power consumed, and the ratio of the predicted maximum operable power and the power consumption per cubic meter can be determined as the pumpable volume; or, the pumped volume per unit time can be determined based on the pumped volume and the operating time, and the ratio of the predicted maximum operable time and the pumped volume per unit time can be determined as the pumpable volume.

[0076] In some embodiments, when charging the electric pump truck, see Figure 1 and Figure 3 Step S160 may further include:

[0077] Step S166: when the current power is greater than or equal to the initial power of the operation, determine that the amount that can be pumped is unlimited;

[0078] Step S164: When the current power is less than the initial power of the operation, the predicted charging power, the predicted maximum consumable power and the predicted maximum operating time are determined according to the current power, the consumed power, the charged power and the operating time.

[0079] It can be understood that the current power is the sum of the initial power of the operation and the charged power, minus the consumed power. Due to the existence of the charged power, the current power may be greater than the initial power of the operation, that is, the charged power can cover the consumed power, and the electric pump truck does not need to consume the initial power of the operation to perform construction during the operation time. The unlimited amount can be, for example, a certain specific value, or when the current power is less than the initial power of the operation, the processor does not need to calculate the specific value of the pumpable volume, but directly outputs instructions to the display and notification device of the electric pump truck.

[0080] Specifically, taking the display as an example, when the processor determines the current power and the initial power of the operation, and determines that the current power is greater than or equal to the initial power of the operation, the processor can send instructions to the display, and the display can display words such as maximum value or unlimited accordingly, thereby informing the operator that the current pumping construction status can continue.

[0081] Specifically, since the processor executes the method in real time, for example, when the charging state or the pumping construction state changes, the current power will also change and may be less than the initial power of the operation. When the current power is less than the initial power of the operation, the processor can determine the predicted charging power, the predicted maximum consumable power and the predicted maximum operable time based on the current power, the consumed power, the charged power and the operating time, and determine the specific value of the pumpable power based on this.

[0082] Therefore, the method for determining the pumpable volume of an electric pumping device provided in the embodiment of the present application takes into account the charging status of the electric pump truck, and determines whether the current pumping construction state is sustainable based on the relationship between the current power and the initial power of the operation. When the current power is greater than or equal to the initial power of the operation, it means that the current pumping construction state is sustainable, so the operator of the electric pump truck does not need to consider changing the current pumping construction state or adjusting the construction progress.

[0083] In the following, in combination with usage scenarios, the method for determining the pumpable volume of an electric pumping device provided in an embodiment of the present application is exemplified in the charging state.

[0084] A specific embodiment of the present application provides a power system of an electric pump truck, such as Figure 4 As shown, the power system of the electric pump truck includes a superstructure power system 410 , a chassis power system 420 , a 380V external power device 430 , a power battery 440 and a high-voltage distribution box 450 .

[0085] Specifically, the upper power system 410 may include, for example, a plurality of upper motor controllers, and each upper motor controller is electrically connected to a upper motor, and each upper motor is connected to a hydraulic pump group. The chassis power system 420 may include, for example, a chassis drive motor controller, the chassis drive controller is electrically connected to the chassis drive motor, and the chassis drive motor is connected to the rear axle transmission system. The chassis power system 420 may also include an electric air conditioner.

[0086] The above-mentioned upper motor controller, chassis drive motor controller and electric air conditioner are electrically connected to the high-voltage distribution box 450 respectively. The high-voltage distribution box 450 is electrically connected to the 380V external power device 430 and the power battery 440. The above-mentioned electrical connection can be, for example, a high-voltage electrical connection, the upper motor and the hydraulic pump group can be, for example, a mechanical connection, and the chassis drive motor and the rear axle transmission system can be, for example, a mechanical connection.

[0087] When the electric pump truck is in the pumping construction state, and the power battery 440 has a high power level, that is, when the SOC (State of Charge, the available state of the remaining charge in the battery) is ≥ 95%, it can provide power to the upper power system 410 (upper motor 1 and upper motor 2) and the electric air conditioner separately; when the power battery 440 has a low power level, that is, when the SOC is less than 95%, it can be combined with the 380V external power device 430 to provide power to the upper power system 410 (upper motor 1 and upper motor 2) and the electric air conditioner. When the electric pump truck is in the waiting state, the 380V external power device 430 can charge the power battery 440 and provide power to the upper power system and the electric air conditioner at the same time.

[0088] The bus voltage and bus current of the power battery, the upper motor controller 1, the upper motor controller 2, the electric air conditioner and the 380V external electrical device and the SOC of the power battery 440 collected in real time can be summarized to the upper motor controller (not shown in the figure). The upper motor controller can be used to measure the pumped volume of the corresponding hydraulic pump group. The upper motor controller is electrically connected to the upper motor controller 1, the upper motor controller 2, the electric air conditioner, the 380V external electrical device 430 and the power battery 440.

[0089] The processor for executing the method provided in the embodiment of the present application is, for example, located in the upper controller, and of course the processor can also be located in other parts of the electric pump truck. The processor obtains the above-collected voltage and current data, as well as the pumped volume, for executing the method provided in the embodiment of the present application.

[0090] Specifically, taking the method for determining the consumed power as an example, in this embodiment, the processor obtains the voltage u of the upper motor controller 1. 1 and current i 1 , Voltage u of the upper motor controller 2 2 and current i 2 And the voltage u of the electric air conditioner 3 and current i 3 , according to time t, the power consumption of upper motor 1, upper motor 2 and electric air conditioner is determined as:

[0091]

[0092] The voltage and current signals obtained above are functions of time, and the time t may be, for example, the operating time of the electric pump truck during the current power-on operation.

[0093] Accordingly, the charged capacity can be determined by the following formula:

[0094]

[0095] Exemplarily, the volume pumped can be determined according to the following formula:

[0096]

[0097] Where n(t) is the number of pumping times, and t can be, for example, the operating time of the electric pump truck during this power-on operation. is the inner diameter of the delivery cylinder, and L is the stroke of the delivery cylinder. In the embodiment of the present application, the pumped volume can also be determined by other methods, for example, it can be the calculation method mentioned in the patent application number CN202010808871.1.

[0098] After obtaining the initial power of the power battery 440 and determining the current power, the processor determines the relationship between the initial power and the current power. If the initial power is less than or equal to the current power, it is determined that the electric pump truck has unlimited endurance, that is, the pumping capacity is unlimited.

[0099] If the initial power of the operation is greater than the current power, the predicted charging power, the predicted maximum consumable power and the predicted maximum possible operating time can be determined based on Formulas 1 to 3.

[0100] After determining the predicted maximum power consumption and the predicted maximum operating time, the formula can be used:

[0101]

[0102] Determine the pumpable volume; where Q 消耗 is the power consumed, C is the volume pumped, F is the power consumption per unit volume, Q 消耗2 To predict the maximum power consumption, C end is the pumpable volume;

[0103] Or, according to the formula:

[0104]

[0105] C end =N(T 2 -T 1 )#(10)

[0106] Determine the pumpable volume; where T 1 is the operating time, and N is the pumping volume per unit time.

[0107] An embodiment of the present invention further provides a processor configured to execute the method for determining the pumpable volume of an electric pumping device according to the above embodiment.

[0108] See also Figure 5 The embodiment of the present invention further provides a device 500 for determining the pumpable volume of an electric pumping device, comprising:

[0109] The operation initial power acquisition module 510 is used to acquire the operation initial power of the electric pumping device during the operation of the electric pumping device in the working state;

[0110] The work volume determination module 520 is used to determine the power consumption and pumped volume of the electric pumping equipment;

[0111] The pumpable volume determination module 540 is used to determine the pumpable volume of the electric pumping equipment according to the initial power consumption of the operation, the power consumed and the pumped volume.

[0112] The device for determining the pumpable volume of an electric pumping device provided in an embodiment of the present application can obtain the pumpable volume of the electric pumping device during each operation. Accordingly, the electric pumping device can inform the device operator of the current pumpable volume, for example, through a display screen, a speaker, or other devices. The operator plans the pumping volume during this operation in advance based on the pumpable volume. In addition, since in this device, the pumpable volume is obtained based on the power consumed and the pumped volume, and the power consumed and the pumped volume will change in real time due to environmental factors and operator operations. Therefore, during this operation, the pumpable volume will be adjusted in real time according to the actual power consumed and the pumped volume. Therefore, the real-time adjustment of the pumpable volume will also prompt the operator that there is a change in the current working environment or equipment operation, which has an impact on the pumpable volume, and the operator can adjust the operation of the equipment or check environmental factors.

[0113] In some embodiments, the pumpable volume determination module 540 is specifically used to: determine the remaining power of the electric pumping equipment based on the initial power of the operation and the power consumed; determine the pumpable volume of the electric pumping equipment based on the remaining power, power consumed and pumped volume.

[0114] In some embodiments, the pumpable volume determination module 540 is specifically used to: determine the power consumption per unit volume based on the power consumed and the pumped volume; determine the pumpable volume based on the power consumption per unit volume and the remaining power.

[0115] In some embodiments, the pumpable volume determination module 540 is specifically used to: determine the operating time of the electric pumping equipment during operation; determine the predicted maximum operating time of the electric pumping equipment based on the initial power of the operation, the power consumed and the operating time; determine the pumpable volume of the electric pumping equipment based on the predicted maximum operating time, the operating time and the pumped volume.

[0116] In some embodiments, the pumpable volume determination module 540 is specifically used to: determine the pumped volume per unit time based on the operating time and the pumped volume; determine the pumpable volume based on the pumped volume per unit time and the predicted maximum operable time.

[0117] In some embodiments, the pumpable volume determination module 540 is specifically used to: determine the power consumption per unit time based on the power consumed and the operating time; determine the remaining power based on the initial operation power and the power consumed; determine the predicted maximum operating time based on the remaining power and the power consumption per unit time.

[0118] In some embodiments, the pumpable volume determination module 540 is specifically used to: determine the charged capacity and operating time of the electric pumping equipment; determine the current capacity of the electric pumping equipment based on the initial operating capacity, the charged capacity and the consumed capacity; determine the predicted charging capacity, the predicted maximum consumable capacity and the predicted maximum operating time based on the current capacity, the consumed capacity, the charged capacity and the operating time; determine the pumpable volume of the electric pumping equipment based on the predicted maximum consumable capacity, the consumed capacity and the pumped volume; or, determine the pumpable volume of the electric pumping equipment based on the predicted maximum operating time, the operating time and the pumped volume.

[0119] In some embodiments, the pumpable volume determination module 540 is specifically used to determine the predicted charging power, the predicted maximum consumable power, and the predicted maximum operable time according to the following formula:

[0120] Q 充2 +Q b当前 ≥Q 消耗2

[0121]

[0122] Among them, Q 充2 To predict the charging capacity, Q 消耗2 To predict the maximum operable power, T 2 To predict the maximum total operation time, (T 2 -T 1 ) is the predicted maximum operable time, Q b当前 is the current power, Q 充1 is the charged capacity, Q 消耗1 is the power consumed, T 1 The time for operation.

[0123] In some embodiments, the pumpable quantity determination module 540 can also be used to determine that the pumpable quantity is unlimited when the current power is greater than or equal to the initial power of the operation; when the current power is less than the initial power of the operation, determine the predicted charging power, the predicted maximum consumable power and the predicted maximum operating time based on the current power, the consumed power, the charged power and the operating time.

[0124] An embodiment of the present application further provides an electric pumping device, comprising: a device for determining the pumpable volume of the electric pumping device according to the above-mentioned embodiment.

[0125] In other embodiments, the embodiments of the present application also provide an electric pumping device, including: a battery cell; a pumping power device electrically connected to the battery cell; and a device for determining the pumpable volume of the electric pumping device according to the above-mentioned embodiment, electrically connecting the battery cell and the pumping power device.

[0126] An embodiment of the present application provides a machine-readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, a method for determining the pumpable volume of an electric pumping device according to the above-mentioned embodiment is implemented.

[0127] 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 on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0128] 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.

[0129] 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 comprising 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.

[0130] 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 in the computer or other programmable device. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0131] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0132] 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.

[0133] 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 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.

[0134] 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.

[0135] 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 method for determining the pumpable volume of an electric pumping device, characterized in that The method comprises: During the operation of the electric pumping device in a working state, obtaining the initial operation power of the electric pumping device; Determining the amount of electricity consumed and the amount of volume pumped by the electric pumping device; The pumpable volume of the electric pumping equipment is determined according to the initial power of the operation, the consumed power and the pumped volume.

2. The method according to claim 1, characterized in that The step of determining the pumpable volume of the electric pumping device according to the initial power of the operation, the consumed power and the pumped volume comprises: Determining the remaining power of the electric pumping equipment according to the initial power of the operation and the consumed power; The pumpable volume of the electric pumping device is determined according to the remaining power, the consumed power and the pumped volume.

3. The method according to claim 2, characterized in that The step of determining the pumpable volume of the electric pumping device according to the remaining power, the consumed power and the pumped volume comprises: Determine the power consumption per unit volume according to the power consumed and the volume pumped; The pumpable volume is determined according to the power consumption per unit volume and the remaining power.

4. The method according to claim 1, characterized in that The step of determining the pumpable volume of the electric pumping device according to the initial power of the operation, the consumed power and the pumped volume comprises: determining an elapsed operating time of the electric pumping device during the operation; Determining a predicted maximum operable time of the electric pumping equipment according to the initial operation power, the consumed power and the elapsed operation time; The pumpable volume of the electric pumping equipment is determined according to the predicted maximum operable time, the actual operating time and the pumped volume.

5. The method according to claim 4, characterized in that Determining the pumpable volume of the electric pumping device according to the predicted maximum operable time, the actual operating time and the pumped volume comprises: Determine the volume pumped per unit time according to the elapsed operation time and the volume pumped; The pumpable volume is determined according to the pumping volume per unit time and the predicted maximum operable time.

6. The method according to claim 4, characterized in that The step of determining the predicted maximum operable time of the electric pumping equipment according to the initial operation power, the consumed power and the operation time includes: Determine the power consumption per unit time according to the power consumption and the operation time; Determining the remaining power according to the initial power of the operation and the consumed power; The predicted maximum operable time is determined according to the remaining power and the power consumption per unit time.

7. The method according to claim 1, characterized in that The step of determining the pumpable volume of the electric pumping device according to the initial power of the operation, the consumed power and the pumped volume comprises: Determining the charge amount and operating time of the electric pumping device; Determining the current power of the electric pumping device according to the initial power of the operation, the charged power and the consumed power; Determine the predicted charging power, the predicted maximum consumable power and the predicted maximum available operating time according to the current power, the consumed power, the charged power and the operating time; Determining the pumpable volume of the electric pumping device according to the predicted maximum consumable power, the consumed power and the pumped volume; Alternatively, the pumpable volume of the electric pumping equipment is determined based on the predicted maximum operable time, the actual operating time, and the pumped volume.

8. The method according to claim 7, characterized in that The step of determining the predicted charging power, the predicted maximum consumable power, and the predicted maximum operable time according to the current power, the consumed power, the charged power, and the operating time includes determining the predicted charging power, the predicted maximum consumable power, and the predicted maximum operable time according to the following formula: Q 充2 +Q b当前 ≥Q 消耗2 Among them, Q 充2 is the predicted charging capacity, Q 消耗2 is the predicted maximum operable power, T2 is the predicted maximum total operating time, (T2-T1) is the predicted maximum operable time, Q b当前 is the current power, Q 充1 is the charged amount, Q 消耗1 is the power consumed, and T1 is the operating time.

9. The method according to claim 7, characterized in that: The step of determining the pumpable volume of the electric pumping device according to the initial power of the operation, the consumed power and the pumped volume further comprises: When the current power is greater than or equal to the initial power of the operation, determining that the pumpable amount is unlimited; When the current power is less than the initial power of the operation, the predicted charging power, the predicted maximum consumable power and the predicted maximum operable time are determined according to the current power, the consumed power, the charged power and the operating time.

10. The method according to claim 1, characterized in that The determining of the amount of power consumed by the electric pumping device comprises: Recording the power consumption current and power consumption voltage of the electric pumping equipment in real time; determining an elapsed operating time of the electric pumping device during the operation; The consumed power is determined according to the consumed current, the consumed voltage and the operating time based on the following formula: Among them, Q 消耗 is the power consumed, U(t) is the power consumption voltage, I(t) is the power consumption current, and T1 is the operating time.

11. A processor, characterized in that: The device is configured to perform the method for determining the pumpable volume of an electric pumping device according to any one of claims 1 to 10.

12. A device for determining the pumpable volume of an electric pumping device, characterized in that include: An operation initial power acquisition module, used to acquire the operation initial power of the electric pumping device during the operation when the electric pumping device is in a working state; A module for determining the amount of work done, used to determine the amount of electricity consumed and the amount of pumping done by the electric pumping equipment; The pumpable volume determination module is used to determine the pumpable volume of the electric pumping equipment according to the initial power of the operation, the consumed power and the pumped volume.

13. An electric pumping device, characterized in that: include: The device for determining the pumpable volume of an electric pumping device according to claim 12.

14. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions for causing a machine to execute a method for determining a pumping volume of an electric pumping device according to any one of claims 1 to 10.

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