Oil pump control method, device, equipment and medium of excavator

Abstract

The application discloses an excavator oil pump control method, device, equipment and medium, and relates to the technical field of data processing. The method comprises the following steps: when the excavator enters a preparation state, controlling the oil pump of the excavator to operate based on a preset initial rotating speed, and monitoring a working mode signal; when the excavating mode signal is monitored, obtaining the rotating opening degree of a speed regulating knob sensor; determining the current excavating rotating speed of the oil pump according to the rotating opening degree and the preset initial rotating speed; and controlling the oil pump to operate based on the current excavating rotating speed; when the push shovel mode signal is monitored, obtaining the gear state of the excavator and the pedal opening degree of a throttle pedal sensor; determining the current push shovel rotating speed of the oil pump according to the gear state, the pedal opening degree and the preset initial rotating speed; and controlling the oil pump to operate based on the current push shovel rotating speed. The application matches the oil pump rotating speed with the working mode of the excavator, thereby avoiding the waste of electric quantity.

Description

Technical Field

[0001] This application relates to the field of data processing technology, and in particular to a method, apparatus, equipment and medium for controlling the oil pump of an excavator loader. Background Technology

[0002] With the continuous maturation of battery and electric motor drive technologies, electric vehicles are rapidly entering the market. For construction machinery, range-extended hybrid technology, which uses electricity as the power source and fuel engines for supplementary power, can solve the problem of continuous operation and also has good fuel economy, making it the current development trend for construction machinery vehicles.

[0003] Currently, in hybrid backhoe loaders, the internal combustion engine primarily powers the battery, while the hydraulic system's oil pump is driven by the loader's variable frequency motor and its controller. However, in practice, it has been found that the backhoe loader's operating mode frequently changes during operation. The hydraulic pump speed does not adjust accordingly; when a higher speed is not required in the current operating mode, the pump speed does not automatically decrease. This mismatch between the pump speed and the existing operating mode results in wasted electricity. Summary of the Invention

[0004] The purpose of this application is to provide a method, device, equipment, and medium for controlling the oil pump of a backhoe loader, which can match the oil pump speed with the working mode of the backhoe loader, thereby avoiding the waste of electricity.

[0005] To achieve the above objectives, this application provides the following solution: In a first aspect, this application provides a method for controlling the oil pump of an excavator loader, comprising: When the excavator loader enters the preparation state, the oil pump controlling the excavator loader runs based on a preset initial speed and monitors the working mode signal; wherein, the working mode signal includes at least the excavation mode signal and the pusher mode signal; When the detected working mode signal is the digging mode signal, the rotation opening of the speed control knob sensor is obtained; and the current digging speed of the oil pump is determined according to the rotation opening and the preset initial speed; and the oil pump is controlled to run based on the current digging speed; wherein, the speed control knob sensor is installed on the excavator loader; When the detected working mode signal is the pusher mode signal, the gear position of the excavator loader and the pedal opening of the throttle pedal sensor are obtained; and the current pusher speed of the oil pump is determined according to the gear position, the pedal opening and the preset initial speed; and the oil pump is controlled to run based on the current pusher speed; wherein, the throttle pedal sensor is installed on the excavator loader.

[0006] Optionally, the excavator loader is equipped with a working mode switch, and the monitoring of the working mode signal specifically includes: Monitor the working mode signal emitted by the working mode switch; When the working mode switch is in the on state, the working mode signal emitted by the working mode switch is the pusher mode signal; When the working mode switch is in the closed state, the working mode signal emitted by the working mode switch is the digging mode signal.

[0007] Optionally, obtaining the rotational opening of the speed control knob sensor specifically includes: Obtain the current rotation angle of the speed control knob sensor; Determine the current rotation voltage corresponding to the current rotation angle; The ratio of the current rotational voltage to the preset maximum rotational voltage is determined as the rotational opening.

[0008] Optionally, determining the current digging speed of the oil pump based on the rotation opening and the preset initial rotation speed specifically includes: Obtain the preset maximum oil pump speed and preset coefficient; The current digging speed of the oil pump is calculated based on the rotation opening, the preset initial rotation speed, the maximum rotation speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current digging speed of the oil pump is as follows: in, The current digging speed of the oil pump. Let X be the rotational opening, and let X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed.

[0009] Optionally, obtaining the gear position of the excavator loader and the pedal opening of the accelerator pedal sensor specifically includes: The gear position of the excavator loader and the pedal force of the accelerator pedal sensor are obtained; wherein, the gear position includes forward, reverse and neutral. Determine the pedal travel corresponding to the pedal force; Determine the current pedal voltage corresponding to the pedal travel; The ratio of the current pedal voltage to the preset maximum pedal voltage is determined as the pedal opening.

[0010] Optionally, determining the current pusher speed of the oil pump based on the gear position, the pedal opening, and the preset initial speed specifically includes: If the gear position is the neutral position, then the preset neutral speed corresponding to the neutral position is determined as the current pusher speed of the oil pump. If the gear position is the reverse position, then the preset reverse speed corresponding to the reverse position is determined as the current pusher speed of the oil pump; If the gear position is the forward position and the pedal opening is 0, then the initial forward speed corresponding to the forward position is determined as the current pusher speed of the oil pump.

[0011] Optionally, the oil pump control method for the excavator loader further includes: If the gear position is the forward position and the pedal opening is greater than 0, then obtain the preset maximum oil pump speed and preset coefficient. The current pusher speed of the oil pump is calculated based on the pedal opening, the preset initial speed, the maximum speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current pusher speed of the oil pump is: in, The current pusher speed of the oil pump, Let X be the pedal opening degree, and X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed.

[0012] Secondly, this application provides an oil pump control device for an excavator loader, comprising: The first control unit is used to control the oil pump of the excavator loader to run based on a preset initial speed when the excavator loader enters the preparation state, and to monitor the working mode signal; wherein the working mode signal includes at least the excavation mode signal and the pusher mode signal; The second control unit is configured to acquire the rotation opening of the speed control knob sensor when the monitored working mode signal is the digging mode signal; determine the current digging speed of the oil pump based on the rotation opening and the preset initial speed; and control the oil pump to operate based on the current digging speed; wherein the speed control knob sensor is disposed on the excavator loader; The third control unit is used to acquire the gear position of the excavator loader and the pedal opening of the throttle pedal sensor when the monitored working mode signal is the pusher mode signal; and to determine the current pusher speed of the oil pump based on the gear position, the pedal opening and the preset initial speed; and to control the oil pump to operate based on the current pusher speed; wherein the throttle pedal sensor is installed on the excavator loader.

[0013] Thirdly, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the oil pump control method for the excavator loader described in any one of the above descriptions.

[0014] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the oil pump control method for the excavator loader described above.

[0015] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the oil pump control method for the excavator loader described above.

[0016] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a method, device, equipment, and medium for controlling the hydraulic pump of an excavator loader. When the excavator loader enters the preparation state, the hydraulic pump of the excavator loader is controlled to run at a preset initial speed, and the working mode signal is monitored. This ensures that the hydraulic pump runs at the preset initial speed as soon as the excavator loader enters the preparation state, minimizing power consumption while the hydraulic pump is working normally. Furthermore, the working mode signal can be monitored so that the hydraulic pump speed can be adjusted in a timely manner when different working modes are detected, so that the hydraulic pump speed can match the working mode of the excavator loader. When the working mode signal is detected as an excavation mode signal or a pusher mode signal, the rotation opening can be obtained through a speed control knob sensor, or the gear status of the excavator loader can be obtained, and the pedal opening can be obtained through a throttle pedal sensor. By using different opening parameters and the preset initial speed, different hydraulic pump speeds matched to different working modes can be obtained. As can be seen, this application realizes the function of adjusting the oil pump speed of the hydraulic system of the excavator loader according to the change of the working mode of the excavator loader. When the current working mode does not require a high speed, the oil pump speed can be automatically reduced. At this time, the oil pump speed matches the existing working mode of the excavator loader, thereby avoiding the waste of electricity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an application environment diagram of an oil pump control method for an excavator loader according to an embodiment of this application; Figure 2 A schematic flowchart illustrating an oil pump control method for an excavator loader, provided as an embodiment of this application; Figure 3 for Figure 1 A detailed flowchart illustrating the steps involved in obtaining the rotational opening of the speed control knob sensor. Figure 4 for Figure 1 A detailed flowchart illustrating the steps of obtaining the gear position of the excavator loader and the pedal opening of the throttle pedal sensor. Figure 5 A schematic diagram of the functional modules of an oil pump control device for an excavator loader provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The oil pump control method for excavators and loaders provided in this application embodiment can be applied to, for example... Figure 1In the application environment shown, the accelerator pedal, gear shift module, operating mode switch, speed control knob, vehicle controller, oil pump motor controller, oil pump motor, and oil pump can all be components installed on the excavator loader. The accelerator pedal can be connected to the vehicle controller via a hardwired connection, and the accelerator pedal can send analog signals to the vehicle controller, which may contain data such as pedal force. The gear shift module can be connected to the vehicle controller via a hardwired connection, and the gear shift module can send digital signals to the vehicle controller, which may contain data such as gear status. The operating mode switch can be connected to the vehicle controller via a hardwired connection, and the operating mode switch can send digital signals to the vehicle controller, which may contain operating mode signals. The speed control knob can be connected to the vehicle controller via a hardwired connection, and the speed control knob can send analog signals to the vehicle controller, which may contain data such as the current rotation angle.

[0022] The vehicle controller can read the received signals and determine the current speed of the excavator loader's oil pump based on the acquired information. The vehicle controller can also be connected to the oil pump motor controller via signal lines CANH and CANL. The oil pump motor controller can be connected to the oil pump motor and the oil pump. The vehicle controller can also send the current speed of the oil pump to the oil pump motor controller so that the oil pump motor controller can control the oil pump motor to run the oil pump at the current speed.

[0023] In one exemplary embodiment, such as Figure 2 As shown, a method for controlling the hydraulic pump of an excavator loader is provided. This method is executed by a computer device, specifically a terminal or server, or both. In this embodiment, the method is applied to... Figure 1 Taking the vehicle controller as an example, the explanation includes the following steps 201 to 203. Wherein: Step 201: When the excavator loader enters the preparation state, control the oil pump of the excavator loader to run based on the preset initial speed, and monitor the working mode signal.

[0024] In this embodiment of the application, when the excavator loader is started, the excavator loader enters the preparation state. The vehicle controller can give a preset initial speed according to the design of the hydraulic system of the excavator loader, and can send the preset initial speed to the oil pump motor controller through the 1939 protocol. At this time, the oil pump motor controller can control the oil pump motor to run based on the preset initial speed. The preset initial speed only needs to maintain the minimum pressure required by the hydraulic system when the excavator loader is working.

[0025] In this embodiment of the application, the working mode signal includes at least a digging mode signal and a pusher mode signal.

[0026] In another exemplary embodiment of this application, the excavator loader is equipped with a working mode switch, and step 201 monitors the working mode signal, specifically including: Monitor the working mode signal emitted by the working mode switch; When the working mode switch is in the on state, the working mode signal emitted by the working mode switch is the pusher mode signal; When the working mode switch is in the closed state, the working mode signal emitted by the working mode switch is the digging mode signal.

[0027] In this implementation method, a working mode signal can be emitted through a working mode switch set on the excavator loader. The working mode switch can be controlled by the operator of the excavator loader. When the operator of the excavator loader activates different working modes through the working mode switch, the specific working mode activated by the operator can be quickly obtained through the working mode signal emitted by the working mode switch, thereby improving the accuracy and efficiency of working mode determination.

[0028] In this embodiment, the working mode switch can be located on the armrest on the left side of the cab seat of the backhoe loader. When the working mode switch is in the open state, the working mode signal emitted by the working mode switch is a pusher mode signal, which is 0, indicating that the backhoe loader is in pusher mode; when the working mode switch is in the closed state, the working mode signal emitted by the working mode switch is a digging mode signal, which is 1, indicating that the backhoe loader is in digging mode.

[0029] Step 202: When the monitored working mode signal is the digging mode signal, obtain the rotation opening of the speed control knob sensor; determine the current digging speed of the oil pump based on the rotation opening and the preset initial speed; and control the oil pump to run based on the current digging speed.

[0030] In this embodiment, the speed control knob sensor is located on the excavator loader, specifically on the right rear side of the excavator loader's cab.

[0031] In another exemplary embodiment of this application, to ensure the accuracy of the rotation opening determination, the current rotation angle of the speed control knob sensor can be obtained, and then the current rotation voltage corresponding to the current rotation angle can be determined. Since there is a preset maximum rotation voltage, the ratio of the current rotation voltage to the preset maximum rotation voltage can be determined as the rotation opening. Figure 3As shown, the step 202 above, which involves obtaining the rotational opening of the speed control knob sensor, is replaced by the following steps 301-303: Step 301: Obtain the current rotation angle of the speed control knob sensor.

[0032] Step 302: Determine the current rotation voltage corresponding to the current rotation angle.

[0033] Step 303: The ratio of the current rotation voltage to the preset maximum rotation voltage is determined as the rotation opening.

[0034] By performing steps 301 to 303 above, the current rotation angle of the speed control knob sensor can be obtained, and then the current rotation voltage corresponding to the current rotation angle can be determined. Since there is a preset maximum rotation voltage, the ratio of the current rotation voltage to the preset maximum rotation voltage can be determined as the rotation opening, thereby ensuring the accuracy of the rotation opening determination.

[0035] In this embodiment, the excavator loader operator can operate this speed control knob sensor. Based on the rotation position of the speed control knob sensor, the speed control knob sensor outputs the current rotation angle, thereby determining the current rotation voltage corresponding to the current rotation angle. The preset maximum rotation voltage can be 4.5V, that is, the range of the current rotation voltage can be [0V, 4.5V]. Therefore, the ratio of the current rotation voltage to the preset maximum rotation voltage can be determined as the rotation opening, and the range of the rotation opening can be [0%, 100%].

[0036] As an optional implementation, step 202, determining the current digging speed of the oil pump based on the rotation opening and the preset initial rotation speed, specifically includes: Obtain the preset maximum oil pump speed and preset coefficient; The current digging speed of the oil pump is calculated based on the rotation opening, the preset initial rotation speed, the maximum rotation speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current digging speed of the oil pump is as follows: in, The current digging speed of the oil pump. Let X be the rotational opening, and let X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed.

[0037] By implementing this method, the current digging speed can be calculated using the formula described above, thus improving the accuracy of the current digging speed calculation.

[0038] In this embodiment, the preset maximum oil pump speed is determined in advance based on the characteristics of the oil pump of the excavator loader. The preset coefficient can be 0.01, and this embodiment does not limit it.

[0039] For example, when excavating relatively loose soil on site, the knob can be turned to the 30% opening position. This position corresponds to a lower oil pump speed, which can provide power to the hydraulic system of the excavator loader in this working state. If the operator needs to increase the excavation speed during the excavation process, he can simply adjust the opening of the knob to the appropriate position.

[0040] Step 203: When the detected working mode signal is the pusher mode signal, acquire the gear position of the excavator loader and the pedal opening of the throttle pedal sensor; determine the current pusher speed of the oil pump based on the gear position, the pedal opening and the preset initial speed; and control the oil pump to operate based on the current pusher speed.

[0041] In this embodiment, the accelerator pedal sensor is located on the excavator loader and can be installed on the floor directly in front of the driver's left foot in the cab of the excavator loader.

[0042] In another exemplary embodiment of this application, to ensure the accuracy of the pedal opening determination, the gear position of the excavator loader and the pedal force collected by the pedal can be obtained, and the distance the pedal moves corresponding to the pedal force, i.e., the pedal stroke, can be determined; and the current pedal voltage corresponding to the pedal stroke can be determined. Since there is a preset maximum pedal voltage, the ratio of the current pedal voltage to the preset maximum pedal voltage can be determined as the pedal opening. Figure 4 As shown, the steps 203 above, which involve obtaining the gear position of the excavator loader and the pedal opening of the throttle pedal sensor, are replaced by the following steps 401-404: Step 401: Obtain the gear position of the excavator loader and the pedal force of the accelerator pedal sensor.

[0043] In this embodiment, the gear position includes a forward position, a reverse position, and a neutral position. The gear position can be acquired by a gear position module. The gear position module can be a rocker switch. When the rocker switch is pushed upward, the reverse gear switch is open, corresponding to gear position 1; when the rocker switch is pushed backward, the forward gear switch is open, corresponding to gear position 2; when the rocker switch is in the middle, both the forward and reverse gear switches are open, which is the neutral position, corresponding to gear position 0.

[0044] Step 402: Determine the pedal travel corresponding to the pedal force.

[0045] In this embodiment, different magnitudes of force applied to the accelerator pedal (i.e., the collected pedal force) can cause the accelerator pedal to move different distances (i.e., pedal travel), and the pedal force collected by the accelerator pedal is positively correlated with the pedal travel, that is, the greater the pedal force, the greater the pedal travel.

[0046] Step 403: Determine the current pedal voltage corresponding to the pedal travel.

[0047] In this embodiment, the pedal travel has a maximum travel threshold, so the pedal travel can be converted into pedal voltage. At this time, the pedal voltage can also be set to a range [0V, 4.5V]. The pedal travel and pedal voltage can be stored in a corresponding relationship, so that the current pedal voltage can be determined according to the pedal travel.

[0048] Step 404: The ratio of the current pedal voltage to the preset maximum pedal voltage is determined as the pedal opening.

[0049] In this embodiment of the application, the ratio of the current pedal voltage to the preset maximum pedal voltage of 4.5V can be determined as the pedal opening degree, and the range of the pedal opening degree can be [0%, 100%].

[0050] By implementing steps 401 to 404 above, the gear status of the excavator loader and the pedal force collected by the pedal can be obtained, and the distance the pedal moves corresponding to the pedal force, i.e., the pedal stroke, can be determined; and the current pedal voltage corresponding to the pedal stroke can be determined. The pedal voltage has a preset maximum pedal voltage, so the ratio of the current pedal voltage to the preset maximum pedal voltage can be determined as the pedal opening, thereby ensuring the accuracy of the pedal opening determination.

[0051] As an optional implementation, step 203, which determines the current pusher speed of the oil pump based on the gear position, the pedal opening, and the preset initial speed, specifically includes: If the gear position is the neutral position, then the preset neutral speed corresponding to the neutral position is determined as the current pusher speed of the oil pump. If the gear position is the reverse position, then the preset reverse speed corresponding to the reverse position is determined as the current pusher speed of the oil pump; If the gear position is the forward position and the pedal opening is 0, then the initial forward speed corresponding to the forward position is determined as the current pusher speed of the oil pump.

[0052] If the gear position is the forward position and the pedal opening is greater than 0, then obtain the preset maximum oil pump speed and preset coefficient. The current pusher speed of the oil pump is calculated based on the pedal opening, the preset initial speed, the maximum speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current pusher speed of the oil pump is: in, The current pusher speed of the oil pump, Let X be the pedal opening degree, and X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed.

[0053] By implementing this method, different pusher speeds of the oil pump can be determined according to different gear states. Furthermore, the current pusher speed of the oil pump when the gear state is forward and the pedal opening is greater than 0 can be calculated according to the above formula, thereby improving the accuracy of the current pusher speed calculation.

[0054] In this embodiment of the application, when the gear state is in neutral, the vehicle controller calculates the preset neutral speed corresponding to the neutral state based on the current vehicle state, and then sends the preset neutral speed to the oil pump motor controller through the 1939 protocol. The oil pump obtains a speed, which only needs to maintain the minimum pressure required by the hydraulic system when the excavator loader is in neutral. When the gear is in reverse, the vehicle controller calculates the preset reverse speed corresponding to the reverse state based on the current vehicle state, and then sends the preset reverse speed to the oil pump motor controller via the 1939 protocol. The oil pump receives a speed, which only needs to maintain the minimum pressure required by the hydraulic system when the excavator loader is in reverse.

[0055] By implementing steps 201 to 203 above, the hydraulic pump speed of the backhoe loader's hydraulic system is adjusted according to changes in the backhoe loader's operating mode. When a higher speed is not required in the current operating mode, the pump speed can automatically decrease, thus matching the existing backhoe loader operating mode and avoiding wasted electricity. Furthermore, this application can improve the accuracy and efficiency of operating mode determination. Additionally, this application can ensure the accuracy of rotational opening determination. Furthermore, this application can improve the accuracy of current excavation speed calculation. Furthermore, this application can ensure the accuracy of pedal opening determination. Furthermore, this application can improve the accuracy of current pusher speed calculation.

[0056] This application also provides an application scenario in which the above-described oil pump control method for an excavator loader is applied. Specifically, the oil pump control method for an excavator loader provided in this embodiment can be applied in the working scenario of an excavator loader. After the excavator loader starts, it enters a preparation state. At this time, the oil pump of the excavator loader is controlled to run based on a preset initial speed, and the working mode signal is monitored. When a digging mode signal or a pusher mode signal is detected, the current digging speed or the current pusher speed of the oil pump can be calculated according to the corresponding methods of the digging mode signal or the pusher mode signal, respectively. Then, the oil pump can be controlled to run based on the current digging speed or the current pusher speed.

[0057] Based on the same inventive concept, this application also provides an oil pump control device for an excavator loader to implement the oil pump control method for the excavator loader described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more embodiments of the oil pump control device for an excavator loader provided below can be found in the limitations of the oil pump control method for the excavator loader described above, and will not be repeated here.

[0058] In one exemplary embodiment, such as Figure 5 As shown, a hydraulic pump control device for an excavator loader is provided, comprising: The first control unit 501 is used to control the oil pump of the excavator loader to run based on a preset initial speed when the excavator loader enters the preparation state, and to monitor the working mode signal; wherein the working mode signal includes at least an excavation mode signal and a pusher mode signal. The second control unit 502 is used to acquire the rotation opening of the speed control knob sensor when the monitored working mode signal is the digging mode signal; and to determine the current digging speed of the oil pump based on the rotation opening and the preset initial speed; and to control the oil pump to run based on the current digging speed; wherein the speed control knob sensor is disposed on the excavator loader; The third control unit 503 is used to acquire the gear position of the excavator loader and the pedal opening of the throttle pedal sensor when the detected working mode signal is the pusher mode signal; and to determine the current pusher speed of the oil pump based on the gear position, the pedal opening and the preset initial speed; and to control the oil pump to run based on the current pusher speed; wherein the throttle pedal sensor is installed on the excavator loader.

[0059] As an optional implementation, the excavator loader is equipped with a working mode switch, and the first control unit 501 monitors the working mode signal in the following manner: Monitor the working mode signal emitted by the working mode switch; When the working mode switch is in the on state, the working mode signal emitted by the working mode switch is the pusher mode signal; When the working mode switch is in the closed state, the working mode signal emitted by the working mode switch is the digging mode signal.

[0060] In this implementation method, a working mode signal can be emitted through a working mode switch set on the excavator loader. The working mode switch can be controlled by the operator of the excavator loader. When the operator of the excavator loader activates different working modes through the working mode switch, the specific working mode activated by the operator can be quickly obtained through the working mode signal emitted by the working mode switch, thereby improving the accuracy and efficiency of working mode determination.

[0061] As an optional implementation, the second control unit 502 acquires the rotation opening of the speed control knob sensor in the following specific way: Obtain the current rotation angle of the speed control knob sensor; Determine the current rotation voltage corresponding to the current rotation angle; The ratio of the current rotational voltage to the preset maximum rotational voltage is determined as the rotational opening.

[0062] By implementing this method, the current rotation angle of the speed control knob sensor can be obtained, and then the current rotation voltage corresponding to the current rotation angle can be determined. Since there is a preset maximum rotation voltage, the ratio of the current rotation voltage to the preset maximum rotation voltage can be determined as the rotation opening, thereby ensuring the accuracy of the rotation opening determination.

[0063] As an optional implementation, the second control unit 502 determines the current digging speed of the oil pump based on the rotation opening and the preset initial rotation speed in the following specific manner: Obtain the preset maximum oil pump speed and preset coefficient; The current digging speed of the oil pump is calculated based on the rotation opening, the preset initial rotation speed, the maximum rotation speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current digging speed of the oil pump is as follows: in, The current digging speed of the oil pump. Let X be the rotational opening, and let X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed.

[0064] By implementing this method, the current digging speed can be calculated using the above formula, thus improving the accuracy of the current digging speed calculation.

[0065] As an optional implementation, the third control unit 503 obtains the gear position of the excavator loader and the pedal opening of the throttle pedal sensor in the following specific way: The gear position of the excavator loader and the pedal force of the accelerator pedal sensor are obtained; wherein, the gear position includes forward, reverse and neutral. Determine the pedal travel corresponding to the pedal force; Determine the current pedal voltage corresponding to the pedal travel; The ratio of the current pedal voltage to the preset maximum pedal voltage is determined as the pedal opening.

[0066] By implementing this method, the gear position of the excavator loader and the pedal force collected by the pedal can be obtained, and the distance the pedal moves corresponding to the pedal force, i.e., the pedal stroke, can be determined; and the current pedal voltage corresponding to the pedal stroke can be determined. The pedal voltage has a preset maximum pedal voltage, so the ratio of the current pedal voltage to the preset maximum pedal voltage can be determined as the pedal opening, thereby ensuring the accuracy of the pedal opening determination.

[0067] As an optional implementation, the third control unit 503 determines the current pusher speed of the oil pump based on the gear position, the pedal opening, and the preset initial speed in the following specific manner: If the gear position is the neutral position, then the preset neutral speed corresponding to the neutral position is determined as the current pusher speed of the oil pump. If the gear position is the reverse position, then the preset reverse speed corresponding to the reverse position is determined as the current pusher speed of the oil pump; If the gear position is the forward position and the pedal opening is 0, then the initial forward speed corresponding to the forward position is determined as the current pusher speed of the oil pump. If the gear position is the forward position and the pedal opening is greater than 0, then obtain the preset maximum oil pump speed and preset coefficient. The current pusher speed of the oil pump is calculated based on the pedal opening, the preset initial speed, the maximum speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current pusher speed of the oil pump is: in, The current pusher speed of the oil pump, Let X be the pedal opening degree, and X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed.

[0068] By implementing this method, different pusher speeds of the oil pump can be determined according to different gear states. Furthermore, the current pusher speed of the oil pump when the gear state is forward and the pedal opening is greater than 0 can be calculated according to the above formula, thereby improving the accuracy of the current pusher speed calculation.

[0069] By implementing the above embodiments, the hydraulic pump speed of the backhoe loader's hydraulic system is adjusted according to changes in the backhoe loader's operating mode. When a higher speed is not required in the current operating mode, the pump speed can automatically decrease, thus matching the existing operating mode of the backhoe loader and avoiding wasted electricity. Furthermore, this application can improve the accuracy and efficiency of determining the operating mode. Additionally, this application can ensure the accuracy of determining the rotation opening. Furthermore, this application can improve the accuracy of calculating the current digging speed. Furthermore, this application can ensure the accuracy of determining the pedal opening. Furthermore, this application can improve the accuracy of calculating the current pusher speed.

[0070] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal, and its internal structure diagram may be as follows. Figure 6 As shown, the computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores video tag processing data. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When executed by the processor, the computer program implements a method for controlling the hydraulic pump of a backhoe loader.

[0071] Those skilled in the art will understand that Figure 6The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0072] In one exemplary embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0073] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0074] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0075] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0076] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0077] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for controlling the oil pump of an excavator loader, characterized in that, The oil pump control method for the excavator loader includes: When the excavator loader enters the preparation state, the oil pump controlling the excavator loader runs based on a preset initial speed and monitors the working mode signal; wherein, the working mode signal includes at least the excavation mode signal and the pusher mode signal; When the detected working mode signal is the digging mode signal, the rotation opening of the speed control knob sensor is obtained; and the current digging speed of the oil pump is determined according to the rotation opening and the preset initial speed; and the oil pump is controlled to run based on the current digging speed; wherein, the speed control knob sensor is installed on the excavator loader; When the detected working mode signal is the pusher mode signal, the gear position of the excavator loader and the pedal opening of the throttle pedal sensor are obtained; and the current pusher speed of the oil pump is determined according to the gear position, the pedal opening and the preset initial speed; and the oil pump is controlled to run based on the current pusher speed; wherein, the throttle pedal sensor is installed on the excavator loader; The excavator loader is equipped with a working mode switch, and the monitoring of the working mode signal specifically includes: Monitor the working mode signal emitted by the working mode switch; When the working mode switch is in the on state, the working mode signal emitted by the working mode switch is the pusher mode signal; When the working mode switch is in the closed state, the working mode signal emitted by the working mode switch is the digging mode signal.

2. The oil pump control method for an excavator loader according to claim 1, characterized in that, The acquisition of the rotation opening of the speed control knob sensor specifically includes: Obtain the current rotation angle of the speed control knob sensor; Determine the current rotation voltage corresponding to the current rotation angle; The ratio of the current rotational voltage to the preset maximum rotational voltage is determined as the rotational opening.

3. The oil pump control method for an excavator loader according to claim 1 or 2, characterized in that, The step of determining the current digging speed of the oil pump based on the rotation opening and the preset initial rotation speed specifically includes: Obtain the preset maximum oil pump speed and preset coefficient; The current digging speed of the oil pump is calculated based on the rotation opening, the preset initial rotation speed, the maximum rotation speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current digging speed of the oil pump is as follows: in, The current digging speed of the oil pump. Let X be the rotational opening, and let X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed is given.

4. The oil pump control method for an excavator loader according to claim 1, characterized in that, The acquisition of the gear position of the excavator loader and the pedal opening of the throttle pedal sensor specifically includes: The gear position of the excavator loader and the pedal force of the accelerator pedal sensor are obtained; wherein, the gear position includes forward, reverse and neutral. Determine the pedal travel corresponding to the pedal force; Determine the current pedal voltage corresponding to the pedal travel; The ratio of the current pedal voltage to the preset maximum pedal voltage is determined as the pedal opening.

5. The oil pump control method for an excavator loader according to claim 4, characterized in that, The step of determining the current pusher speed of the oil pump based on the gear position, the pedal opening, and the preset initial speed specifically includes: If the gear position is the neutral position, then the preset neutral speed corresponding to the neutral position is determined as the current pusher speed of the oil pump. If the gear position is the reverse position, then the preset reverse speed corresponding to the reverse position is determined as the current pusher speed of the oil pump; If the gear position is the forward position and the pedal opening is 0, then the initial forward speed corresponding to the forward position is determined as the current pusher speed of the oil pump.

6. The oil pump control method for an excavator loader according to claim 5, characterized in that, The oil pump control method for the excavator loader also includes: If the gear position is the forward position and the pedal opening is greater than 0, then obtain the preset maximum oil pump speed and preset coefficient. The current pusher speed of the oil pump is calculated based on the pedal opening, the preset initial speed, the maximum speed of the oil pump, and the preset coefficient. Furthermore, the formula for calculating the current pusher speed of the oil pump is: in, The current pusher speed of the oil pump, Let X be the pedal opening degree, and X be the preset coefficient. This is the maximum speed of the oil pump. The preset initial rotational speed is given.

7. A hydraulic pump control device for an excavator loader, characterized in that, The oil pump control device of the excavator loader includes: The first control unit is used to control the oil pump of the excavator loader to run based on a preset initial speed when the excavator loader enters the preparation state, and to monitor the working mode signal; wherein the working mode signal includes at least the excavation mode signal and the pusher mode signal; The second control unit is configured to acquire the rotation opening of the speed control knob sensor when the monitored working mode signal is the digging mode signal; determine the current digging speed of the oil pump based on the rotation opening and the preset initial speed; and control the oil pump to operate based on the current digging speed; wherein the speed control knob sensor is disposed on the excavator loader; The third control unit is used to acquire the gear position of the excavator loader and the pedal opening of the throttle pedal sensor when the monitored working mode signal is the pusher mode signal; and to determine the current pusher speed of the oil pump based on the gear position, the pedal opening and the preset initial speed; and to control the oil pump to operate based on the current pusher speed; wherein the throttle pedal sensor is installed on the excavator loader. The excavator loader is equipped with a working mode switch, and the first control unit monitors the working mode signal in the following way: Monitor the working mode signal emitted by the working mode switch; When the working mode switch is in the on state, the working mode signal emitted by the working mode switch is the pusher mode signal; When the working mode switch is in the closed state, the working mode signal emitted by the working mode switch is the digging mode signal.

8. A computer device, comprising: The memory and processor contain a computer program stored in the memory and executable on the processor, characterized in that the processor executes the computer program to implement the steps of the oil pump control method for the excavator loader according to any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the oil pump control method for the excavator loader as described in any one of claims 1-6.

Images