Pure electric mixer truck capable of automatically switching state gears and control system

Abstract

The utility model relates to a pure electric mixer truck capable of automatically switching state gears and a control system, and the pure electric mixer truck comprises a driving assembly which is used for driving the pure electric mixer truck to move at preset power; the stirring tank assembly is provided with a feeding hole and a discharging hole; the recognition assembly comprises a feeding recognition piece and a discharging recognition piece, the feeding recognition piece is installed at the feeding port and obtains image data at the feeding port according to a first preset interval, and the discharging recognition piece is installed at the discharging port and obtains image data at the discharging port according to a second preset interval; and the control assembly is connected with the identification assembly, obtains the material quantity of the stirring tank assembly according to the image data, and adjusts the preset power of the driving assembly according to the material quantity. The energy-saving performance of the mixer truck can be improved, and the power performance and driving comfort of the truck can be improved. And by reducing the operation burden of the driver, the system can also reduce the possibility of human errors, so that the overall transportation efficiency and safety are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a pure electric mixer truck and its control system that automatically switches between different status gears. Background Technology

[0002] Concrete mixer trucks are indispensable transportation tools in the construction industry, primarily responsible for transporting concrete between cities and intercity areas. These vehicles typically operate by transporting concrete fully loaded and then returning empty. To accommodate this unique working pattern, the design of concrete mixer trucks needs to consider how to effectively reduce energy consumption. Currently, concrete mixer trucks often use multi-state switches to switch between transport states, manually operated by the driver. However, in actual operation, the driver may not be able to promptly or accurately perceive the truck's load status, leading to an inability to switch the vehicle's power in a timely or accurate manner. This can result in a mismatch between the vehicle's power output mode and the actual load condition. This not only fails to achieve energy conservation but may also affect the vehicle's power performance and the driver's driving experience. Utility Model Content

[0003] Therefore, it is necessary to provide a pure electric mixer truck and control system that can automatically and timely switch power modes to address the above-mentioned technical problems, so as to accurately match the vehicle's power output mode with the actual load state and reduce vehicle energy consumption.

[0004] On the one hand, a pure electric mixer truck with automatic switching of operating modes is provided, the pure electric mixer truck comprising:

[0005] Drive assembly for driving the pure electric mixer truck to move at a preset power;

[0006] The mixing tank assembly has a feed inlet and a discharge outlet;

[0007] An identification assembly includes an inlet identification component and an outlet identification component. The inlet identification component is installed at the inlet and acquires image data at the inlet at a first preset interval. The outlet identification component is installed at the outlet and acquires image data at the outlet at a second preset interval.

[0008] The control assembly is connected to the identification assembly, obtains the material quantity of the mixing tank assembly based on the image data, and adjusts the preset power of the drive assembly based on the material quantity.

[0009] In one embodiment, the drive assembly includes a motor and a power switch that is connected to the motor. The power switch has at least two positions, each corresponding to a preset power of the motor. The control assembly adjusts the position of the power switch according to the amount of material.

[0010] In one embodiment, the power switch switches continuously, and the control assembly can linearly adjust the switches to linearly adjust the preset power.

[0011] In one embodiment, the power switch includes a start position and a stop position. When the power switch is in the start position, the control assembly can adjust the drive assembly.

[0012] In one embodiment, the feed identification device acquires one frame of image data at the feed inlet at each time point, and the discharge identification device acquires one frame of image data at the inlet and outlet at each time point.

[0013] In one embodiment, the mixing tank assembly includes a full-load state and an empty-load state. The full-load state corresponds to the maximum material quantity, and the empty-load state corresponds to the minimum material quantity. The drive assembly is adjusted when the material quantity obtained by the control assembly is the maximum or minimum value.

[0014] In one embodiment, the control assembly includes a processing unit, a storage unit connected to the processing unit, and a computing unit connected to the processing unit and the storage unit. The processing unit processes the image to obtain material flow data, the storage unit stores the flow data and the functional relationship between the material quantity, and the computing unit can call the functional relationship and the flow data to output the calculation result to the drive assembly.

[0015] In one embodiment, the storage unit is used to store the torque curve of the drive assembly, and a preset correspondence between the torque curve, the material quantity and the preset power is provided. The calculation unit can call the correspondence and the flow data to perform calculations and output the calculation results to the drive assembly.

[0016] On the one hand, a control system for automatically switching gears in a vehicle is provided, the control system comprising:

[0017] An identification assembly includes an inlet identification component and an outlet identification component. The inlet identification component is installed at the vehicle's inlet and acquires image data at the inlet at a first preset interval. The outlet identification component is installed at the vehicle's outlet and acquires image data at the outlet at a second preset interval.

[0018] The control assembly is connected to the recognition assembly, obtains the amount of material carried by the vehicle based on the image data, and adjusts the preset power of the vehicle's drive assembly based on the amount of material.

[0019] In one embodiment, the vehicle is a pure electric mixer truck.

[0020] The aforementioned pure electric mixer truck and control system collect image and video signals by installing specialized identification elements on the truck. Identification assemblies installed at the inlet and outlet can monitor the material feed and discharge rates in real time, indirectly revealing the concrete loading status within the mixing tank. This accurate monitoring avoids the problem of ineffective monitoring due to material contamination when using identification assemblies inside the mixing tank. The video signals are then transmitted to the control assembly to obtain the concrete loading amount in the mixing tank and automatically switch the power of the vehicle drive assembly to match the vehicle's actual load status, achieving optimal energy efficiency. This intelligent solution not only improves the mixer truck's energy-saving performance but also enhances its power performance and driving comfort. By reducing the driver's workload, the system also reduces the possibility of human error, thereby improving overall transportation efficiency and safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a pure electric mixer truck according to one embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the control system and drive assembly in one embodiment of this application.

[0023] Explanation of icon numbers:

[0024] 1. Pure electric mixer truck; 10. Mixing tank assembly; 20. Drive assembly; 21. Motor; 22. Power switch; 30. Identification assembly; 31. Feed identification component; 32. Discharge identification component; 40. Control assembly. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] See Figure 1 , Figure 1 The diagram shows a schematic of the structure of a pure electric mixer truck 1 with automatic switching of status gears according to an embodiment of the present application. The pure electric mixer truck 1 provided in an embodiment of the present application is driven by electricity as a whole. The mixer truck is equipped with a battery pack as a power source to supply power to various electrical components inside the mixer truck.

[0032] The pure electric mixer truck 1 includes a drive assembly 20, a mixing tank assembly 10, an identification assembly 30, and a control assembly 40. The drive assembly 20 drives the pure electric mixer truck 1 to move at a preset power. The mixing tank assembly 10 has a feed inlet and a discharge outlet. The identification assembly 30 includes a feed identification element 31 and a discharge identification element 32. The feed identification element 31 is installed at the feed inlet and acquires image data at the feed inlet at a first preset interval. The discharge identification element 32 is installed at the discharge outlet and acquires image data at the discharge outlet at a second preset interval. The control assembly 40 is connected to the identification assembly 30, obtains the material quantity of the mixing tank assembly 10 based on the image data, and adjusts the preset power of the drive assembly 20 based on the material quantity.

[0033] The aforementioned pure electric mixer truck 1 and its control system acquire image and video signals by installing specialized identification elements on the mixer truck. Identification assemblies 30, installed at the inlet and outlet, can monitor the material feed and discharge rates in real time, indirectly revealing the concrete loading status within the mixing tank. This accurate monitoring avoids the problem of poor monitoring performance caused by material contamination when using identification assemblies 30 inside the mixing tank. The video signal is then transmitted to the control assembly 40 to obtain the concrete loading amount in the mixing tank and automatically switches the power of the vehicle drive assembly 20 to match the vehicle's actual load status, achieving optimal energy efficiency. This intelligent solution not only improves the energy-saving performance of the mixer truck but also enhances its power performance and driving comfort. By reducing the driver's workload, the system also reduces the possibility of human error, thereby improving overall transportation efficiency and safety.

[0034] In one embodiment, the drive assembly 20 includes a motor 21 and a power switch 22 that is drive-connected to the motor 21. The power switch 22 has at least two positions, each of which corresponds to a preset power of the motor 21. The control assembly 40 adjusts the position of the power switch 22 according to the amount of material.

[0035] Specifically, motor 21 is connected to and powered by the battery pack. Each position of the power switch 22 corresponds to a preset power (or speed) of motor 21, and ultimately corresponds to a power output mode of the pure electric mixer truck 1. For example, the power switch 22 includes a first position and a second position. The first position corresponds to the first preset power of motor 21 and the first speed of pure electric mixer truck 1. The second position corresponds to the second preset power of motor 21 and the second speed of pure electric mixer truck 1. The first speed can be zero and the second speed can be the standard speed, or both the first and second speeds can be non-zero and the second speed can be greater than the first speed.

[0036] In one embodiment, the power switch 22 switches continuously between different speeds, and the control assembly 40 can linearly adjust the speed to linearly adjust the preset power.

[0037] Specifically, the power switch 22 is a throttle module, and the throttle module switches continuously between gears. The control assembly 40 automatically adjusts the throttle module based on the feedback from the recognition assembly 30 to linearly adjust the motor 21. At this time, the power switch 22 does not distinguish between the first and second gears, and can adjust the preset power of the motor 21 according to the stroke length of the throttle module.

[0038] In one embodiment, the power switch 22 includes a start position and a stop position. When the power switch 22 is in the start position, the control assembly 40 can adjust the drive assembly 20.

[0039] Specifically, the power switch 22 includes at least four positions. For example, in addition to the first and second positions, the power switch 22 also includes a start position and a stop position. When the power switch 22 is in the start position, the control circuit is connected, and the control assembly 40 can control the drive assembly 20. The power switch 22 can further switch between the first and second positions. When the power switch 22 is in the stop position, the control circuit is not connected, and the control assembly 40 cannot control the drive assembly 20. Regardless of the feedback signal from the identification assembly 30, no adjustment or control is performed. The start and stop positions can be manually operated or automatically started under certain judgment conditions, effectively avoiding dangerous vehicle operation.

[0040] The stop position can be a self-reset or skip switch. When pressed, the control assembly 40 cancels the control of the drive assembly 20. The drive assembly 20 of the mixer truck outputs power according to a fixed value (maximum preset power / average preset power). The stop position can be set to be reactivated every time the vehicle is powered on, or it can be kept effective after being canceled.

[0041] In one embodiment, the feed identification device 31 acquires one frame of image data at the feed inlet at each time point.

[0042] Specifically, the feeding identification device 31 can be a video acquisition device or an image acquisition device. If it is an image acquisition device, the feeding identification device 31 acquires image data at a preset interval at each time point. If it is a video acquisition device, the feeding identification device 31 monitors in real time and captures and stores image data at a preset interval at each time point.

[0043] In other embodiments, the feed identification element 31 can be a flow rate / volume sensor that directly collects the flow rate / volume of the incoming and outgoing materials.

[0044] In one embodiment, the mixing tank assembly 10 includes a full-load state and an empty-load state. The full-load state corresponds to the maximum material quantity, and the empty-load state corresponds to the minimum material quantity. When the material quantity obtained by the control assembly 40 is the maximum or minimum value, the drive assembly 20 is adjusted.

[0045] Furthermore, the time points at which the concrete inflow signal is collected by the feed identification component 31 are t1, t2, t3...tn. The material quantity is calculated according to the formula V=(tn-t1)*A≥cV0, where A is the preset concrete feeding speed inside the control assembly 40, V0 is the preset material quantity transported by the mixing tank, and c is a constant. A, V0, and c can be set according to actual conditions. When V≥cV0, the control assembly 40 determines that its state is full load. This determination process is performed every time a concrete inflow signal is collected. The full load state corresponds to one of the first and second gears mentioned above.

[0046] Furthermore, the discharge identification component 32 collects signals of concrete flowing into the inlet at time points T1, T2, T3...Tn. The material quantity is calculated using the formula V' = V - (Tn - T1) * B < aV0, where B is the preset concrete discharge speed inside the control assembly 40, V0 is the preset material transport volume in the mixing tank, and a is a constant. A, V0, and c can be set according to actual conditions. When V' < aV0, the control assembly 40 determines its state to be unloaded. This determination process is performed every time a concrete inflow signal is collected. The unloaded state corresponds to one of the first and second gear positions mentioned above.

[0047] In one embodiment, the control assembly 40 includes a processing unit, a storage unit connected to the processing unit, and a computing unit connected to the processing unit and the storage unit. The processing unit processes the image to obtain material flow data, the storage unit stores the flow data and the functional relationship between the material quantity, and the computing unit can call the functional relationship and the flow data to output the calculation result to the drive assembly 20.

[0048] The recognition assembly 30 has the function of recognizing (concrete, water, and other static objects), roughly identifying the volume of objects in the image, and recording the image time point. The control assembly 40 can set the feeding speed, for example, 1m. 3 / min, 2m 3 The system compares the sum of the object volumes captured by images within a specific time period (e.g., / min) with a preset feeding speed and selects the final feeding speed. Based on the calculations of time and feeding speed, the volume of material is determined.

[0049] In one embodiment, the storage unit stores the torque curve of the drive assembly 20 and has a preset correspondence between the torque curve, the material quantity, and the preset power. The calculation unit can call the correspondence and the flow data to perform calculations and output the results to the drive assembly 20. The torque curve includes a torque limit curve or a throttle torque characteristic curve, which are multiple curves preset by the vehicle controller, with a number greater than or equal to two. The torque curve can be selected and automatically switched by the control assembly 40, reducing human error and improving energy-saving performance.

[0050] Understandably, this application can also adopt a semi-automatic solution. The cab of the pure electric mixer truck is equipped with a display that can show the real-time material quantity identified and calculated by the identification assembly and the control assembly, and display the recommended power switch gear or a suitable torque curve. After the user selects, the control assembly controls the drive assembly to perform the corresponding work according to the input signal. The automatic gear switching and semi-automatic gear switching are combined to flexibly adapt to different usage scenarios of the mixer truck.

[0051] On one hand, a control system for automatically switching vehicle status gears is provided. The control system includes: an identification assembly 30, comprising a feed identification element 31 and a discharge identification element 32. The feed identification element 31 is installed at the vehicle's feed inlet and acquires image data at the feed inlet at a first preset interval. The discharge identification element 32 is installed at the vehicle's discharge outlet and acquires image data at the discharge outlet at a second preset interval. On the other hand, a control assembly 40 is connected to the identification assembly 30, which obtains the amount of material carried by the vehicle based on the image data and adjusts the preset power of the vehicle's drive assembly 20 based on the amount of material. In one embodiment, the vehicle is a pure electric mixer truck 1.

[0052] The aforementioned pure electric mixer truck 1 and its control system acquire image and video signals by installing specialized identification elements on the mixer truck. Identification assemblies 30, installed at the inlet and outlet, can monitor the material feed and discharge rates in real time, indirectly revealing the concrete loading status within the mixing tank. This accurate monitoring avoids the problem of poor monitoring performance caused by material contamination when using identification assemblies 30 inside the mixing tank. The video signal is then transmitted to the control assembly 40 to obtain the concrete loading amount in the mixing tank and automatically switches the power of the vehicle drive assembly 20 to match the vehicle's actual load status, achieving optimal energy efficiency. This intelligent solution not only improves the energy-saving performance of the mixer truck but also enhances its power performance and driving comfort. By reducing the driver's workload, the system also reduces the possibility of human error, thereby improving overall transportation efficiency and safety.

[0053] 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.

[0054] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A pure electric mixer truck with automatic mode switching, characterized in that, The pure electric mixer truck includes: Drive assembly for driving the pure electric mixer truck to move at a preset power; The mixing tank assembly has a feed inlet and a discharge outlet; An identification assembly includes an inlet identification component and an outlet identification component. The inlet identification component is installed at the inlet and acquires image data at the inlet at a first preset interval. The outlet identification component is installed at the outlet and acquires image data at the outlet at a second preset interval. The control assembly is connected to the identification assembly, obtains the material quantity of the mixing tank assembly based on the image data, and adjusts the preset power of the drive assembly based on the material quantity.

2. The pure electric mixer truck with automatic switching of status gears according to claim 1, characterized in that, The drive assembly includes a motor and a power switch that is connected to the motor. The power switch has at least two positions, each position corresponding to a preset power of the motor. The control assembly adjusts the position of the power switch according to the amount of material.

3. The pure electric mixer truck with automatic switching of status gears according to claim 2, characterized in that, The power switch switches continuously between different positions, and the control assembly can linearly adjust the positions to linearly adjust the preset power.

4. The pure electric mixer truck with automatic switching mode according to claim 2, characterized in that, The power switch includes a start position and a stop position. When the power switch is in the start position, the control assembly can adjust the drive assembly.

5. The pure electric mixer truck with automatic switching mode according to claim 1, characterized in that, The feeding identification device acquires one frame of image data at the feeding port at each time point, and the discharging identification device acquires one frame of image data at the inlet and outlet at each time point.

6. The pure electric mixer truck with automatic switching mode according to claim 1, characterized in that, The mixing tank assembly includes a full-load state and an empty-load state. The full-load state corresponds to the maximum material quantity, and the empty-load state corresponds to the minimum material quantity. When the material quantity obtained by the control assembly is the maximum or minimum value, the drive assembly is adjusted.

7. The pure electric mixer truck with automatic switching mode according to claim 1, characterized in that, The control assembly includes a processing unit, a storage unit connected to the processing unit, and a computing unit connected to the processing unit and the storage unit. The processing unit processes the image to obtain material flow data. The storage unit stores the flow data and the functional relationship between the material quantity and the flow data. The computing unit can call the functional relationship and the flow data to output the calculation result to the drive assembly.

8. The pure electric mixer truck with automatic switching of status gears according to claim 7, characterized in that, The storage unit is used to store the torque curve of the drive assembly, and has a preset correspondence between the torque curve, the material quantity and the preset power. The calculation unit can call the correspondence and the flow data to perform calculations and output the calculation results to the drive assembly.

9. A control system for automatically switching status gears, characterized in that, The control system includes: An identification assembly includes an inlet identification component and an outlet identification component. The inlet identification component is installed at the vehicle's inlet and acquires image data at the inlet at a first preset interval. The outlet identification component is installed at the vehicle's outlet and acquires image data at the outlet at a second preset interval. The control assembly is connected to the recognition assembly, obtains the amount of material carried by the vehicle based on the image data, and adjusts the preset power of the vehicle's drive assembly based on the amount of material.

10. The control system for automatically switching status gears according to claim 9, characterized in that, The vehicle in question is a pure electric mixer truck.

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