Method and system for controlling demand torque of an electric loader and electric loader
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2026-08-11
AI Technical Summary
然而,电动装载机在实际应用中,由于电动装载机的轮胎半径较大且配有较重的铲斗,所以容易失去平衡而出现抖动现象
[0029]本发明所述的电动装载机需求扭矩的控制方法通过判断电动装载机是否在堆料模式,根据获取的油门踏板开度和车速,当电动装载机处于堆料模式时,仅通过油门踏板的开度进行需求扭矩的计算,车速的变化不作为需求扭矩的计算依据,利于降低需求扭矩的波动对电动装载机造成的抖动,而当电动装载机未处于堆料模式时,VCU将车速纳入需求扭矩的计算依据,利于电动装载机以较高车速转场的平顺性,既缓解了电动装载机堆料时的抖动又兼顾了电动装载机转场的平顺,利于提升电动装载机的使用品质。
Smart Images

Figure CN121590312B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electric loader technology, and particularly to a method for controlling the required torque of an electric loader. The invention also relates to a control system based on the above-described method for controlling the required torque of an electric loader, an electric loader using the above-described method for controlling the required torque of an electric loader, and a computer-readable storage medium capable of implementing the above-described method for controlling the required torque of an electric loader. Background Technology
[0002] With increasing global awareness of environmental protection and the gradual development of the new energy industry, electric loaders, as a representative of green power machinery, are gradually replacing traditional fuel loaders, demonstrating their unique advantages in heavy industrial fields such as concrete mixing plants, power plants, and mining areas. However, in practical applications, electric loaders are prone to loss of balance and shaking due to their larger tire radius and heavier buckets.
[0003] Specifically, during material stacking operations, electric loaders are prone to uneven load distribution on the tires due to the large weight and uneven distribution of materials loaded in the bucket, as well as the resistance of the material pile itself. This can lead to vehicle vibration. This vibration is not limited to the tires; it is gradually transmitted to the motor through components such as the drive shaft and gearbox, ultimately affecting the motor's stable operation. The motor's output torque is crucial for maintaining vehicle balance and improving work efficiency. However, when vibration occurs, fluctuations in vehicle speed interfere with the VCU's accurate judgment of the matching relationship between the accelerator pedal opening and the required torque, causing deviations in the calculation of the required torque. This, in turn, affects the vehicle's overall power response and driving smoothness.
[0004] Furthermore, the driver in the cab, as the direct operator, will also be affected by the vibration in terms of operational judgment and precision. When the vehicle vibrates, the driver will adjust the accelerator pedal opening due to the vibration, which will further aggravate the fluctuation of the required torque, forming a vicious cycle that directly affects driving comfort and work efficiency, and is not conducive to improving the quality of use of the electric loader. Summary of the Invention
[0005] In view of this, the present invention aims to propose a method for controlling the torque demand of an electric loader, so as to improve the performance of the electric loader.
[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:
[0007] A method for controlling the torque demand of an electric loader, the method comprising:
[0008] Obtain the throttle pedal opening and vehicle speed of the electric loader;
[0009] Determine whether the electric loader is in stacking mode;
[0010] When the electric loader is in the stacking mode, the VCU calculates the required torque of the electric loader based on the throttle pedal opening.
[0011] When the electric loader is not in the stacking mode, the VCU calculates the required torque of the electric loader based on the accelerator pedal opening and the vehicle speed.
[0012] Furthermore, determining whether the electric loader is in stacking mode includes:
[0013] When the acquired vehicle speed is within a first preset speed range, if the instantaneous acceleration of the electric loader is lower than the first preset acceleration, the electric loader is in the stacking mode; and / or,
[0014] When the acquired vehicle speed is within the first preset vehicle speed range, if the bucket of the electric loader is in working condition, the electric loader is in the stacking mode; and / or,
[0015] When the VCU receives a signal to enter the stacking mode, the electric loader is in the stacking mode.
[0016] Furthermore, the electric loader is equipped with preset function buttons, which, when triggered, can send a signal to the VCU to enter the stacking mode.
[0017] Furthermore, when the electric loader is in stacking mode, the VCU calculates the required torque of the electric loader based on the throttle pedal opening, including:
[0018] Obtain the required torque range and accelerator pedal opening range;
[0019] Establish a proportional relationship between the required torque range and the accelerator pedal opening range;
[0020] The required torque of the electric loader is obtained based on the obtained throttle pedal opening and the proportional relationship.
[0021] Furthermore, when the electric loader is in stacking mode, the control method further includes:
[0022] When the acquired vehicle speed exceeds the second preset vehicle speed range, the VCU resets the throttle opening to zero and terminates the calculation of the electric loader's required torque.
[0023] Furthermore, establishing the proportional correspondence between the required torque range and the accelerator pedal opening range includes:
[0024] The accelerator pedal opening range and the required torque range are divided into percentages.
[0025] This ensures that the percentage of the accelerator pedal opening range is directly proportional to the percentage of the required torque range.
[0026] Furthermore, when the electric loader is not in the stacking mode, the control method further includes:
[0027] When the acquired vehicle speed exceeds the third preset speed range, the VCU resets the accelerator pedal opening to zero and terminates the calculation of the electric loader's required torque.
[0028] Compared with the prior art, the present invention has the following advantages:
[0029] The torque demand control method for electric loaders described in this invention determines whether the electric loader is in stacking mode. Based on the obtained throttle pedal opening and vehicle speed, when the electric loader is in stacking mode, the torque demand is calculated only based on the throttle pedal opening, and changes in vehicle speed are not used as a basis for calculating the torque demand. This helps reduce the vibration caused by fluctuations in torque demand to the electric loader. When the electric loader is not in stacking mode, the VCU incorporates vehicle speed into the calculation of torque demand, which helps ensure the smoothness of the electric loader when moving at higher speeds. This not only alleviates the vibration of the electric loader during stacking but also ensures the smoothness of the electric loader's movement, thus improving the overall quality of the electric loader's operation.
[0030] By setting at least one judgment method to determine whether the electric loader is in the stacking mode, the accuracy of judging the working mode of the electric loader can be improved.
[0031] With preset function buttons, operators can directly press the buttons to enter the material stacking mode, which is convenient for operation and design implementation.
[0032] By establishing the proportional relationship between the required torque range and the accelerator pedal opening range, and corresponding the required torque and accelerator pedal opening based on the proportional relationship, it is beneficial to calculate the required torque and facilitates the design and implementation.
[0033] By setting a second preset speed range, when the electric loader is in stacking mode and the speed reaches the second preset speed range, the calculation of the required torque is terminated and the speed is reset to zero. This helps to prevent the electric loader from overspeeding, thus improving the safety of the electric loader when stacking materials.
[0034] This ensures that the accelerator pedal opening range is directly proportional to the required torque, which better corresponds to the relationship between the accelerator pedal opening and the required torque, and facilitates the calculation of the required torque.
[0035] By setting a third preset speed range, when the electric loader is not in the stacking mode and the speed reaches the third preset speed range, the calculation of the required torque is terminated and the speed is reset to zero. This helps to prevent the electric loader from overspeeding, which in turn helps to prevent the motor from overspeeding and improves the safety of the electric loader when it is moved between sites.
[0036] This invention also proposes a control system for the torque demand of an electric loader, comprising:
[0037] The first acquisition unit is used to acquire the throttle pedal opening and vehicle speed of the electric loader;
[0038] A pattern recognition unit is used to identify the operating mode of the electric loader;
[0039] The first processing unit is used to calculate the required torque of the electric loader based on the obtained throttle pedal opening when the electric loader is in the stacking mode.
[0040] The second processing unit is used to calculate the required torque of the electric loader based on the obtained throttle pedal opening and vehicle speed when the electric loader is not in the stacking mode.
[0041] In addition, the present invention also proposes an electric loader, wherein the required torque of the electric loader is controlled according to the electric loader required torque control method described above.
[0042] The present invention also proposes a computer-readable storage medium storing a program or instructions that, when executed by a processor, enables the control method for the required torque of an electric loader as described above.
[0043] The electric loader torque demand control system, electric loader, and computer-readable storage medium described in this invention have the same beneficial effects as the electric loader torque demand control method described above compared to the prior art, and therefore will not be repeated here. Attached Figure Description
[0044] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:
[0045] Figure 1 This is a flowchart of the method for controlling the required torque of an electric loader according to an embodiment of the present invention;
[0046] Figure 2This is a schematic diagram illustrating the configuration of the control system for the torque demand of the electric loader according to an embodiment of the present invention;
[0047] Explanation of reference numerals in the attached figures:
[0048] 100. Control system; 101. First acquisition unit; 102. Pattern recognition unit; 103. First processing unit; 104. Second processing unit. Detailed Implementation
[0049] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.
[0050] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.
[0051] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0052] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."
[0053] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0054] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0055] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0056] Example 1
[0057] This embodiment relates to a method for controlling the required torque of an electric loader, aiming to improve the performance of the electric loader by optimizing the calculation steps of the required torque.
[0058] Before describing the torque demand control method for the electric loader in this embodiment, it is necessary to briefly introduce the concepts involved in controlling the torque demand of the electric loader. An electric loader is a type of new energy power machinery that uses an electric motor to perform material stacking and relocation operations. The torque demand of the electric loader is distributed by the VCU (Vehicle Control Unit) based on vehicle speed and accelerator pedal opening, and the motor outputs the required torque based on commands from the VCU.
[0059] Therefore, based on the above introduction, combined with Figure 1 As shown, in terms of overall design, the method for controlling the torque demand of the electric loader in this embodiment includes the following steps:
[0060] Step S1: Obtain the throttle pedal opening and vehicle speed of the electric loader.
[0061] In step S1, the throttle pedal opening and vehicle speed of the electric loader can be obtained, for example, by using a sensor installed on an existing electric loader to acquire the throttle pedal opening and vehicle speed, and the throttle pedal opening and vehicle speed obtained by the sensor are transmitted to the VCU.
[0062] Step S2: Determine whether the electric loader is in stacking mode.
[0063] In step S2, the stacking mode refers to the working mode of the electric loader when it is in the stacking condition. In this embodiment, determining whether the electric loader is in the stacking mode also includes the following steps:
[0064] Step S21: When the acquired vehicle speed is within the first preset vehicle speed range, if the instantaneous acceleration of the electric loader is lower than the first preset acceleration, the electric loader is in the stacking mode.
[0065] In step S21, the first preset vehicle speed range is 8km / h-10km / h. The instantaneous acceleration can be calculated, for example, by the gearbox output shaft speed or the vehicle speed sensor. The value of the first preset acceleration needs to be set according to the motor model used by different electric loaders.
[0066] It should be noted that different electric loaders use different motor models, and the first preset acceleration setting value of each motor model is also different. The first preset acceleration setting is such that when the electric loader reaches the first preset speed range, which is also the maximum speed limit when the electric loader is stacking materials, if the instantaneous acceleration of the electric loader still increases, it means that it needs to enter the transfer mode. Therefore, the value of the first preset acceleration is the value of the highest instantaneous acceleration of the electric loader in the stacking mode. When the instantaneous acceleration of the electric loader exceeds this value, the electric loader needs to exit the stacking mode.
[0067] In practice, the first preset acceleration of the electric loader using different motor models can be determined, for example, by the value of the highest instantaneous acceleration in the stacking mode obtained through experiments. The value of the highest instantaneous acceleration in the stacking mode obtained by different motor models is the first preset acceleration of the electric loader of different motor models.
[0068] Step S22: When the obtained vehicle speed is within the first preset vehicle speed range, if the bucket of the electric loader is in working condition, the electric loader is in the stacking mode.
[0069] In step S22, whether the bucket of the electric loader is in a working state can be determined, for example, by a torque sensor mounted on the bucket. The torque sensor is electrically connected to the VCU and sends a working state signal to the VCU. Alternatively, whether the bucket is in a working state can also be determined by a machine vision camera. By configuring the machine vision camera's recognition object, when the bucket is filled with material, it can be determined to be in stacking mode. In addition, other existing methods for determining whether the bucket is in a working state are also applicable.
[0070] Step S23: When the VCU receives the signal to enter the stacking mode, the electric loader is in the stacking mode.
[0071] In step S23, the signal to enter the stacking mode received by the VCU can be triggered, for example, by a preset function key. This preset function key can be a physical button mounted on the center console of the electric loader or a virtual button integrated into the operation screen. In this embodiment, it can be a physical button mounted on the center console. The physical button is electrically connected to the VCU, and when the physical button is triggered, it sends a signal to the VCU to enter the stacking mode. The operator can switch the stacking mode on or off by triggering the physical button. The preset function key allows the operator to directly operate the button to enter the stacking mode, facilitating operation and design implementation.
[0072] In step S2, when the electric loader is in stacking mode, if the acquired vehicle speed exceeds the second preset speed range, the VCU resets the throttle opening to zero and terminates the calculation of the electric loader's required torque. The second preset speed range can be, for example, 4 km / h-6 km / h. By setting the second preset speed range, when the electric loader is in stacking mode and the speed reaches the second preset speed range, the calculation of the required torque is terminated and the speed is reset to zero, which helps to prevent the electric loader from overspeeding, thus improving the safety of the electric loader during stacking. Steps S21 to S23 satisfying at least one condition is sufficient to determine that the electric loader is in stacking mode. By setting at least one determination method to determine whether the electric loader is in stacking mode, the accuracy of determining the electric loader's operating mode is improved.
[0073] Step S3: When the electric loader is in stacking mode, the VCU calculates the required torque of the electric loader based on the throttle pedal opening.
[0074] In step S3, when the VCU determines that the electric loader is in stacking mode, it calculates the required torque of the electric loader based solely on the throttle pedal opening. This reduces loader vibration caused by vehicle speed fluctuations and also reduces throttle pedal opening vibrations caused by electric loader vibrations. This facilitates stable torque output in stacking mode and improves the overall performance of the electric loader. Step S3 also includes the following steps:
[0075] Step S31: Obtain the required torque range and accelerator pedal opening range.
[0076] In step S31, the required torque range and the accelerator pedal opening range can be obtained, for example, from the signals received by the VCU and the output required torque control signal.
[0077] Step S32: Establish the proportional correspondence between the required torque range and the accelerator pedal opening range.
[0078] In step S32, the established proportional relationship can be achieved by dividing the accelerator pedal opening range and the required torque range into percentages. This ensures a direct proportionality between the percentage of the accelerator pedal opening range and the percentage of the required torque range, thus better reflecting the relationship between accelerator pedal opening and required torque, facilitating the calculation of required torque. By establishing a proportional relationship between the required torque range and the accelerator pedal opening range, and corresponding the required torque and accelerator pedal opening according to this ratio, the calculation of required torque is facilitated, which is beneficial for design and implementation.
[0079] Step S33: Obtain the required torque of the electric loader based on the obtained throttle pedal opening and proportional relationship.
[0080] In step S33, the VCU outputs a control signal for the required torque to the motor based on the input value of the accelerator pedal opening and the proportional relationship.
[0081] Step S4: When the electric loader is not in the stacking mode, the VCU calculates the required torque of the electric loader based on the throttle pedal opening and vehicle speed.
[0082] In step S4, when the electric loader is not in the stacking mode, that is, when the electric loader is in the transfer mode, the torque distribution required by the electric loader is calculated based on the throttle pedal opening and vehicle speed, so as to improve the smoothness of high-speed transfer.
[0083] In step S4, when the acquired vehicle speed exceeds the third preset speed range, the VCU resets the accelerator pedal opening to zero and terminates the calculation of the electric loader's required torque. The third preset speed range can be, for example, 13 km / h-15 km / h, to prevent the electric loader's motor from overspeeding and affecting its operational safety. By setting the third preset speed range, when the electric loader is not in stacking mode and the speed reaches the third preset speed range, the calculation of the required torque is terminated and the speed is reset to zero, which helps prevent the electric loader from overspeeding, thus improving the operational safety of the electric loader during site relocation.
[0084] It should be noted that in this embodiment, when the electric loader is in stacking mode, it is generally in a low-speed, high-torque state to meet the stacking requirements. If it is not in stacking mode, the electric loader will be in a high-speed, low-torque state to meet the requirements for empty or fully loaded transfer.
[0085] The torque demand control method for the electric loader in this embodiment determines whether the electric loader is in stacking mode. Based on the obtained throttle pedal opening and vehicle speed, when the electric loader is in stacking mode, the torque demand is calculated only based on the throttle pedal opening, and changes in vehicle speed are not used as a basis for calculating the torque demand. This helps reduce the vibration caused by fluctuations in torque demand to the electric loader. When the electric loader is not in stacking mode, the VCU incorporates vehicle speed into the calculation of torque demand, which helps ensure the smoothness of the electric loader when moving at higher speeds. This not only alleviates the vibration of the electric loader when stacking materials but also ensures the smoothness of the electric loader when moving, thus improving the quality of use of the electric loader.
[0086] Example 2
[0087] This embodiment relates to a control system for the torque demand of an electric loader (hereinafter referred to as control system 100). This control system 100 is based on the control method for the torque demand of an electric loader in Embodiment 1, and combines... Figure 2 As shown, the overall structure of the control system 100 includes a first acquisition unit 101, a pattern recognition unit 102, a first processing unit 103, and a second processing unit 104.
[0088] The system includes a first acquisition unit 101 for acquiring the throttle pedal opening and vehicle speed of the electric loader. A pattern recognition unit 102 for identifying the operating mode of the electric loader. A first processing unit 103 for calculating the required torque of the electric loader based on the acquired throttle pedal opening when the electric loader is in stacking mode. A second processing unit 104 for calculating the required torque of the electric loader based on the acquired throttle pedal opening and vehicle speed when the electric loader is not in stacking mode.
[0089] As set above, the control system 100 in this embodiment can obtain the throttle pedal opening and vehicle speed of the electric loader based on the control method for the required torque of the electric loader in Embodiment 1, and determine the working condition of the electric loader, and control the required torque of the electric loader.
[0090] It should be noted that the aforementioned first acquisition unit 101, pattern recognition unit 102, first processing unit 103, and second processing unit 104 can all be existing circuit modules with data storage, processing, and input / output capabilities. In addition to the modules mentioned above, the control system 100 typically also includes other modules such as data storage and data communication modules to temporarily store vehicle speed and accelerator pedal opening data and other related processing information, and to establish communication connections with other relevant modules.
[0091] The control system 100 of this embodiment, when used in specific applications, can be referred to the relevant description in Embodiment 1.
[0092] Furthermore, the control system 100 of this embodiment, by implementing the above-described control method, can optimize the calculation steps of the electric loader's required torque. By determining whether the electric loader is in stacking mode, based on the obtained throttle pedal opening and vehicle speed, when the electric loader is in stacking mode, the required torque is calculated only based on the throttle pedal opening, and changes in vehicle speed are not used as the basis for calculating the required torque. This helps reduce the vibration caused by fluctuations in required torque to the electric loader. When the electric loader is not in stacking mode, the VCU incorporates vehicle speed into the calculation of required torque, which helps ensure the smoothness of the electric loader's transfer at higher vehicle speeds. This alleviates the vibration of the electric loader during stacking and also ensures the smoothness of the electric loader's transfer, thus improving the quality of use of the electric loader.
[0093] Example 3
[0094] This embodiment relates to an electric loader, which uses the torque control method for the electric loader required in Embodiment 1.
[0095] The torque demand of the electric loader in this embodiment is controlled according to the torque demand control method of the electric loader in Embodiment 1. By applying the torque demand control method of the electric loader in Embodiment 1, the torque demand distribution in the stacking mode and the transfer mode of the electric loader in this embodiment can be improved, thereby improving the smoothness and stability of the electric loader. This not only alleviates the vibration of the electric loader during stacking but also ensures the smoothness of the electric loader during transfer, which is conducive to improving the quality of use of the electric loader.
[0096] Example 4
[0097] This embodiment relates to a computer-readable storage medium storing a computer program, which, when executed by a processor, enables the control method for the required torque of the electric loader in Embodiment 1.
[0098] In this embodiment, the computer-readable storage medium is generally exemplified by a memory. This computer-readable storage medium includes permanent and non-permanent, removable and non-removable media, and information storage can be achieved by any method or technology.
[0099] Furthermore, the aforementioned information may be computer-readable instructions, data structures, program modules, or other data. Examples of computer-readable 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 technologies, CD-ROM, digital versatile optical disc (DVD), or other optical storage, magnetic tape, magnetic magnetic tape, disk storage, or other magnetic storage devices, or any other non-transfer medium that can be used to store information that can be accessed by a computing device.
[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for controlling the required torque of an electric loader, characterized in that, The control method includes: Obtain the throttle pedal opening and vehicle speed of the electric loader; Determine whether the electric loader is in stacking mode; When the electric loader is in the stacking mode, the VCU calculates the required torque of the electric loader based on the throttle pedal opening. When the electric loader is not in the stacking mode, the VCU calculates the required torque of the electric loader based on the accelerator pedal opening and the vehicle speed; The determination of whether the electric loader is in stacking mode includes: When the acquired vehicle speed is within a first preset speed range, if the instantaneous acceleration of the electric loader is lower than the first preset acceleration, the electric loader is in the stacking mode; and / or, When the acquired vehicle speed is within the first preset vehicle speed range, if the bucket of the electric loader is in working condition, the electric loader is in the stacking mode; and / or, When the VCU receives a signal to enter the stacking mode, the electric loader is in the stacking mode; When the electric loader is in stacking mode, the control method further includes: When the acquired vehicle speed exceeds the second preset vehicle speed range, the VCU resets the throttle opening to zero and terminates the calculation of the electric loader's required torque.
2. The method for controlling the required torque of an electric loader according to claim 1, characterized in that: The electric loader is equipped with preset function buttons, which, when triggered, can send a signal to the VCU to enter the stacking mode.
3. The method for controlling the required torque of an electric loader according to claim 1, characterized in that, When the electric loader is in stacking mode, the VCU calculates the required torque of the electric loader based on the throttle pedal opening, including: Obtain the required torque range and accelerator pedal opening range; Establish a proportional relationship between the required torque range and the accelerator pedal opening range; The required torque of the electric loader is obtained based on the obtained throttle pedal opening and the proportional relationship.
4. The method for controlling the required torque of an electric loader according to claim 3, characterized in that, Establishing the proportional relationship between the required torque range and the accelerator pedal opening range includes: The accelerator pedal opening range and the required torque range are divided into percentages. This ensures that the percentage of the accelerator pedal opening range is directly proportional to the percentage of the required torque range.
5. The method for controlling the required torque of an electric loader according to claim 1, characterized in that, When the electric loader is not in the stacking mode, the control method further includes: When the acquired vehicle speed exceeds the third preset speed range, the VCU resets the accelerator pedal opening to zero and terminates the calculation of the electric loader's required torque.
6. A control system for the torque demand of an electric loader, using the torque demand control method for the electric loader as described in any one of claims 1-5, characterized in that, The control system (100) includes: The first acquisition unit (101) is used to acquire the throttle pedal opening and vehicle speed of the electric loader; The pattern recognition unit (102) is used to identify the working mode of the electric loader; The first processing unit (103) is used to calculate the required torque of the electric loader based on the obtained throttle pedal opening when the electric loader is in the stacking mode. The second processing unit (104) is used to calculate the required torque of the electric loader based on the obtained throttle pedal opening and the vehicle speed when the electric loader is not in the stacking mode.
7. An electric loader, characterized in that: The required torque of the electric loader is controlled according to the method for controlling the required torque of the electric loader as described in any one of claims 1-5.
8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program or instructions that, when executed by a processor, enable the control method for the required torque of the electric loader as described in any one of claims 1 to 5.
Citation Information
Patent Citations
Multi-working-condition operation mode control method and system for pure electric loader
CN115384321A
Single-pedal control method for electric loader
CN116005749A