Body power take-off integrated module, body power take-off system and heavy-duty vehicle

Abstract

The present application relates to the technical field of electric vehicles, and in particular to a top-mounted power take-off integrated module, a top-mounted power take-off system and a heavy-duty vehicle. The top-mounted power take-off integrated module includes a top-mounted power take-off motor, a top-mounted motor controller and an integrated mounting frame; the top-mounted motor controller is connected to the top-mounted power take-off motor, and the top-mounted power take-off motor and the top-mounted motor controller are both integrated inside the integrated mounting frame, and the integrated mounting frame can be detachably connected to the whole vehicle; the top-mounted motor controller can be connected to the top-mounted relay of the power distributor of the whole vehicle to obtain power for the whole vehicle; when the high voltage of the whole vehicle is powered on and the top-mounted switch of the whole vehicle is turned on, the top-mounted relay of the power distributor is closed, and the top-mounted motor controller controls the top-mounted power take-off motor to work. The top-mounted power take-off integrated module, the top-mounted power take-off system and the heavy-duty vehicle of the present application solve the problems of the existing vehicles having a complex power take-off structure, occupying a large space, being prone to oil leakage, and being unable to be used in vehicles without a gearbox.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and in particular to a top-mounted power take-off integrated module, a top-mounted power take-off system and a heavy-duty vehicle. Background Art

[0002] Due to the wide range of commercial vehicles, new energy tractors, dump trucks, special vehicles, mixer trucks and other new energy vehicles require upper load power take-off to complete specific operations in most working conditions. The power take-off system of traditional fuel vehicles and centrally driven new energy vehicles is to install a PTO power take-off port on the rear gearbox and then connect it to the power take-off device through a high-pressure oil pipe.

[0003] However, this power take-off solution is not only complicated to connect the oil pipe, but also the power take-off device installed at the rear end of the gearbox is prone to oil leakage. In addition, new energy vehicles have more components and the layout space is relatively compact. The complex power take-off structure also brings pressure and challenges to the layout of vehicle components. In addition, the gearbox PTO power take-off cannot be used for models without gearboxes, such as ports, factory direct drive models and emerging electric drive axle models. Summary of the invention

[0004] The purpose of the present application is to provide a top-mounted power take-off integrated module, a top-mounted power take-off system and a heavy-duty vehicle, thereby solving the problems of existing vehicles having a complex power take-off structure, occupying a large space, being prone to oil leakage, and being unable to be used in vehicles without a gearbox.

[0005] According to the first aspect of the present application, a top-mounted power take-off integrated module is provided, which includes a top-mounted power take-off motor, a top-mounted motor controller and an integrated mounting frame; the top-mounted motor controller is connected to the top-mounted power take-off motor, and the top-mounted power take-off motor and the top-mounted motor controller are both integrated inside the integrated mounting frame, and the integrated mounting frame can be detachably connected to the entire vehicle; the top-mounted motor controller can be connected to the top-mounted relay of the vehicle power distributor to obtain power for the entire vehicle; when the high voltage of the entire vehicle is powered on and the top-mounted switch of the entire vehicle is turned on, the top-mounted relay of the power distributor is closed, and the top-mounted motor controller controls the operation of the top-mounted power take-off motor.

[0006] In any of the above technical solutions, further, the upper-mounted power take-off integrated module includes a plurality of sealing plates and partition beams; the outer periphery of the integrated installation frame is closed by a plurality of the sealing plates to form a closed installation space, and the side of the integrated installation frame facing the output end of the upper-mounted power take-off motor is open; the partition beam is connected to the integrated installation frame to divide the installation space into an upper space and a lower space, the upper-mounted motor controller is arranged on the partition beam and is located in the upper space; the upper-mounted power take-off motor is arranged on the integrated installation frame and is located in the lower space.

[0007] In any of the above technical solutions, further, the upper body power take-off integrated module also includes a cooling water tank, a circulating water pump and a radiator; the cooling water tank, the circulating water pump and the radiator are all integrated inside the integrated mounting frame; the cooling water tank, the circulating water pump, the upper body motor controller, the upper body power take-off motor and the radiator are connected in series in sequence; when the upper body system of the whole vehicle is working, the circulating water pump is started; when the upper body system of the whole vehicle is not working, the circulating water pump is turned off.

[0008] In any of the above technical solutions, further, the upper-mounted motor controller is connected to the vehicle power distributor through a high-voltage cable to obtain power for the entire vehicle; the upper-mounted motor controller interacts with the vehicle power distributor through CAN signals, and the upper-mounted motor controller controls the operation of the upper-mounted power take-off motor while detecting the working status of the upper-mounted power take-off motor.

[0009] In any of the above technical solutions, further, the upper-mounted power take-off integrated module also includes a lifting ear and a mounting bracket; the mounting bracket is integrated at the bottom of the integrated mounting frame, and the lifting ear is integrated at the top of the integrated mounting frame; the integrated mounting frame can be installed on the entire vehicle through the mounting bracket, and the integrated mounting frame can be lifted through the lifting ear.

[0010] According to the second aspect of the present application, a bodywork power take-off system is provided, comprising the bodywork power take-off integrated module as described above, the bodywork power take-off system also comprising a vehicle controller and a power distributor, the power distributor comprising a bodywork relay; the vehicle controller is respectively connected to the power distributor and the motor controller; when the vehicle high voltage is powered on and the vehicle body switch is turned on, the vehicle controller sends a relay closing instruction to the power distributor, the power distributor receives the relay closing instruction and closes the bodywork relay, and when the vehicle controller receives the closing signal fed back by the power distributor, the vehicle controller sends an enable instruction to the motor controller, the motor controller receives the enable instruction and controls the bodywork power take-off motor to operate.

[0011] In any of the above technical solutions, further, after the high voltage of the vehicle is powered on, if the vehicle controller simultaneously receives the vehicle mounted switch on signal, the vehicle handbrake setting signal and the vehicle zero speed signal, the vehicle controller sends a relay closing command to the power distributor.

[0012] In any of the above technical solutions, further, the upper body power take-off system also includes an accelerator pedal; if the accelerator pedal signal received by the vehicle controller is zero, the vehicle controller sends a first speed command to the upper body motor controller, and the upper body motor controller controls the upper body power take-off motor to output a first speed value; if the accelerator pedal signal received by the vehicle controller is not zero, the vehicle controller sends a torque command to the upper body motor controller, and the upper body motor controller controls the upper body power take-off motor to output a speed value corresponding to the torque command.

[0013] In any of the above technical solutions, further, if the upper motor controller feeds back the upper system fault of the vehicle, and the vehicle controller determines that the upper system fault occurs, the vehicle controller sends an upper system stop command to the power distributor, and the power distributor receives the stop command and disconnects the upper relay.

[0014] According to a third aspect of the present application, a heavy-duty vehicle is provided, comprising the above-mentioned upper body power take-off integrated module; the upper body power take-off motor is connected to the oil pump of the upper body system of the heavy-duty vehicle.

[0015] The upper-mounted power take-off integrated module of the present application includes an upper-mounted power take-off motor, an upper-mounted motor controller and an integrated mounting frame. The upper-mounted motor controller is connected to the upper-mounted power take-off motor, and the upper-mounted power take-off motor and the upper-mounted motor controller are integrated inside the integrated mounting frame, and the integrated mounting frame can be detachably connected to the whole vehicle; the upper-mounted motor controller can be connected to the upper-mounted relay of the whole vehicle power distributor to obtain the power of the whole vehicle; when the whole vehicle is powered on at high voltage and the upper-mounted switch of the whole vehicle is turned on, the upper-mounted relay of the whole vehicle power distributor is closed, and the upper-mounted motor controller controls the upper-mounted power take-off motor to work.

[0016] According to the above technical features, the beneficial effects of this application are:

[0017] When the upper load power take-off integrated module of the present application is used, the upper load power take-off integrated module is assembled with the whole vehicle, and the upper load power take-off motor is connected to the oil pump of the upper load system of the whole vehicle. When the whole vehicle is powered on at high voltage and the upper load switch is turned on, the upper load relay of the whole vehicle power distributor is closed, and the upper load motor controller controls the upper load power take-off motor to work, thereby controlling the upper load system to work.

[0018] As described above, the design of the upper-mounted power take-off integrated module of the present application is driven by the upper-mounted power take-off motor, which gets rid of the dependence of the power take-off system on the gearbox in the prior art; and the present application adopts an integrated modular design, which not only occupies less space but also has flexible layout, and the modularization can be transplanted to various positions as needed, with better versatility.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram showing the overall structure of a top-mounted power take-off integrated module according to an embodiment of the present application;

[0022] Figure 2 A schematic diagram showing the arrangement structure of a body-mounted power take-off motor and a body-mounted motor controller according to an embodiment of the present application is shown;

[0023] Figure 3 Show Figure 2 Schematic diagram of some structures;

[0024] Figure 4 A schematic diagram showing the arrangement structure of a cooling system according to an embodiment of the present application is shown;

[0025] Figure 5 A control principle diagram of a bodywork power take-off system according to an embodiment of the present application is shown;

[0026] Figure 6 A schematic diagram showing the connection of a cooling system according to an embodiment of the present application;

[0027] Figure 7 A logic control diagram of a bodywork power take-off system according to an embodiment of the present application is shown.

[0028] Icons: 100-upper-mounted power take-off motor; 110-motor three-phase wire; 120-wiring harness fixing card; 130-fixing bracket; 200-upper-mounted motor controller; 210-first crossbeam; 220-second crossbeam; 230-mounting seat; 300-integrated mounting frame; 310-side sealing plate mounting bracket; 320-bottom sealing plate mounting bracket; 330-upper sealing plate mounting bracket; 340-side sealing plate; 350-bottom sealing plate; 360-upper space; 370-lower space; 410-first mounting bracket; 420-second mounting bracket; 430-lifting ear; 500-cooling system; 510-cooling water tank; 520-circulating water pump; 530-radiator; 540-cooling outlet pipe; 550-cooling return pipe; 600-vehicle controller; 700-power distributor; 800-oil pump. DETAILED DESCRIPTION

[0029] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0030] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0031] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0032] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0033] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0034] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0035] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0036] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0037] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0038] Before this application was filed, the power take-off system of traditional fuel vehicles and centrally driven new energy vehicles was to install a PTO power take-off port on the rear gearbox, and then connect it to the power take-off device through a high-pressure oil pipe. However, this power take-off solution is not only complicated to connect the oil pipe, but also the power take-off device installed at the rear end of the gearbox is prone to oil leakage. In addition, new energy vehicle models have more components and a relatively compact layout space. The complex power take-off structure also brings pressure and challenges to the layout of vehicle components. In addition, the gearbox PTO power take-off cannot be used for models without a gearbox, such as ports, factory direct-drive models and emerging electric drive axle models.

[0039] In view of this, the first aspect of the present application provides a top-mounted power take-off integrated module to solve the technical problems existing in the above-mentioned power take-off system. Figures 1 to 4A bodywork power take-off integrated module according to some embodiments of the present application is described.

[0040] like Figure 1 and Figure 2 As shown, the upper-mounted power take-off integrated module of the present application includes an upper-mounted power take-off motor 100, an upper-mounted motor controller 200 and an integrated mounting frame 300. Among them, the upper-mounted motor controller 200 is connected to the upper-mounted power take-off motor 100, and the upper-mounted power take-off motor 100 and the upper-mounted motor controller 200 are both integrated inside the integrated mounting frame 300, and the integrated mounting frame 300 can be detachably connected to the whole vehicle; the upper-mounted motor controller 200 can be connected to the upper-mounted relay of the whole vehicle power distributor 700 to obtain the power of the whole vehicle; when the whole vehicle is powered on at high voltage and the upper-mounted switch of the whole vehicle is turned on, the upper-mounted relay of the whole vehicle power distributor 700 is closed, and the upper-mounted motor controller 200 controls the upper-mounted power take-off motor 100 to work.

[0041] When the upper-mounted power-taking integrated module of the present application is used, the upper-mounted power-taking integrated module is assembled with the whole vehicle, and the upper-mounted power-taking motor 100 is connected to the oil pump of the upper-mounted system of the whole vehicle. When the high voltage of the whole vehicle is powered on and the upper-mounted switch is turned on, the upper-mounted relay of the whole vehicle power distributor 700 is closed, and the upper-mounted motor controller 200 controls the upper-mounted power-taking motor 100 to work, and then controls the upper-mounted system to work. In other words, the design of the upper-mounted power-taking integrated module of the present application is driven by the upper-mounted power-taking motor 100, which gets rid of the dependence of the power-taking system on the gearbox in the prior art; and the present application adopts an integrated modular design, which not only takes up less space but also has flexible layout, and the modularization can be transplanted to various positions as needed, and the versatility is better.

[0042] Further, in the embodiment of the present application, the upper load power take-off integrated module includes a plurality of sealing plates, and the outer periphery of the integrated installation frame 300 is sealed by the plurality of sealing plates to form a closed installation space. Figure 1 and Figure 2 As shown, multiple sealing plates include an upper sealing plate, a side sealing plate 340 and a bottom sealing plate 350. The integrated mounting frame 300 includes an upper sealing plate mounting bracket 330, a side sealing plate mounting bracket 310 and a bottom sealing plate mounting bracket 320. Among them, the upper sealing plate is connected to the upper sealing plate mounting bracket 330, the side sealing plate 340 is connected to the side sealing plate mounting bracket 310, and the bottom sealing plate 350 is connected to the bottom sealing plate mounting bracket 320 to form a closed installation space. In this way, the entire integrated module is an independent and closed system to prevent internal components from being affected by environmental factors. Among them, the side of the integrated mounting frame 300 facing the output end of the upper mounted power take-off motor 100 is openly arranged, so that it is convenient for the output end of the upper mounted power take-off motor 100 to be connected to the oil pump 800 of the whole vehicle. In order to achieve perspective in the figure here, the upper sealing plate and part of the side sealing plates are not shown in the figure.

[0043] Further, in the embodiments of the present application, Figure 3 As shown, the upper load power take-off integrated module includes a partition beam. The partition beam divides the installation space into an upper space 360 ​​and a lower space 370. As an example, Figure 2 and Figure 3 As shown, the partition beam includes a first beam 210 and a second beam 220; the first beam 210 and the second beam 220 are connected to the integrated installation frame 300 to divide the installation space into an upper space 360 ​​and a lower space 370. The upper mounted power take-off motor 100 and the upper mounted motor controller 200 are installed separately.

[0044] like Figure 1 and Figure 2 As shown, the upper power take-off motor 100 and the upper motor controller 200 are connected through the motor three-phase line 110, and the cable installation order is: U, V, W correspond to the colors of the high-voltage cables, yellow, green, and red, respectively. The three-phase high-voltage cable is installed on the integrated installation frame 300 through the harness fixing card 120, and the distance between every two harness fixing cards 120 does not exceed 500mm.

[0045] like Figure 2 and Figure 3 As shown, the upper power take-off motor 100 is installed in the lower space 370 through four fixing brackets 130, and the upper motor controller 200 is fixed on the first beam 210 and the second beam 220 through the mounting seat 230, and the first beam 210 and the second beam 220 are then installed in the upper space 360.

[0046] Further, in the embodiments of the present application, Figure 4 As shown, the upper power take-off integrated module also includes a cooling system 500, which includes a cooling water tank 510, a circulating water pump 520, a radiator 530, a cooling water outlet pipe 540, and a cooling water return pipe 550. The cooling water tank 510, the circulating water pump 520, the radiator 530, the cooling water outlet pipe 540, and the cooling water return pipe 550 are all integrated inside the integrated installation frame 300. Figure 4 and Figure 6 As shown, the cooling water tank 510, the circulating water pump 520, the upper motor controller 200, the upper power take-off motor 100 and the radiator 530 are sequentially connected in series to form a cooling circuit. The circulating water pump 520 is installed between the cooling water tank 510 and the upper motor controller 200. The circulating water pump 520 provides power for the circulation of the cooling water of the whole vehicle. The cooling system 500 dissipates heat for the upper power take-off motor 100 and the upper motor controller 200 through the circulation of cooling water. When the upper system of the whole vehicle is working, the circulating water pump 520 is started; when the upper system of the whole vehicle is not working, the circulating water pump 520 is turned off.

[0047] That is to say, all components of the cooling system 500 are installed inside the integrated mounting frame 300, and the cooling system controller controls the cooling of the vehicle upper system. After receiving the enabling instruction from the vehicle controller 600, the cooling system 500 controls the operation of the circulating water pump 520 and monitors the temperature of the upper power take-off motor 100 and the upper motor controller 200. When the upper system is not enabled, the upper system is in an inoperative state, and the circulating water pump 520 does not operate. As the temperature of the upper power take-off motor 100 and the upper motor controller 200 increases, the cooling system 500 controls the water flow of the circulating water pump 520 to increase with the increase of temperature.

[0048] Further, in the embodiments of the present application, Figure 1 As shown, the upper load power take-off integrated module further includes a lifting lug 430, a first mounting bracket 410 and a second mounting bracket 420. The first mounting bracket 410 and the second mounting bracket 420 are integrated at the bottom of the integrated mounting frame 300, and the lifting lug 430 is integrated at the top of the integrated mounting frame 300. The integrated mounting frame 300 can be installed on the vehicle through the first mounting bracket 410 and the second mounting bracket 420, and the integrated mounting frame 300 can be lifted through the lifting lug 430.

[0049] That is to say, the integrated mounting frame 300 adopts a modular design, and all the components of the upper mounting system are mounted and fixed on the integrated mounting frame 300. When in use, the integrated mounting frame 300 is installed on the vehicle frame through the first mounting bracket 410 and the second mounting bracket 420. Lifting ears 430 are installed on the left front and right rear sides of the integrated mounting frame 300. When installing the entire system, the upper mounting power take-off integrated module of the present application can be lifted by the lifting ears 430. As described above, the design of the upper mounting power take-off integrated module of the present application is driven by the upper mounting power take-off motor 100, which gets rid of the dependence of the power take-off system on the gearbox in the prior art; and the present application adopts an integrated modular design, which can save layout space to a greater extent, and can also be installed as a whole at any position that is more convenient for power take-off.

[0050] According to the second aspect of the present application, a bodywork power take-off system is provided, and the bodywork power take-off system includes the bodywork power take-off integrated module as described above. Further, the bodywork power take-off system also includes a vehicle controller 600 and a power distributor 700, and the power distributor 700 includes a bodywork relay. Preferably, the power distributor 700 is an all-in-one power distribution controller, and the vehicle controller 600 is, for example, a vehicle controller VCU (Vehicle Control Unit).

[0051] The upper motor controller 200 is connected to the power distributor 700 via two high-voltage cables to obtain the high voltage electricity of the whole vehicle. The upper motor controller 200, the vehicle controller 600 and the power distributor 700 interact through CAN signals. While controlling the operation of the upper power take-off motor 100, the upper motor controller 200 also detects the working status of the upper power take-off motor 100. When a fault occurs in the upper system, the upper motor controller 200 will report the fault to the vehicle controller 600, and the vehicle controller 600 will complete the power-off protection of the upper system by disconnecting the upper relay of the power distributor 700. After the cab panel switch is turned on (upper system switch), the vehicle controller 600 sends an upper enable instruction, after which the upper motor controller 200 executes the torque or speed instruction sent by the vehicle controller 600, and drives the upper power take-off motor 100 to output the response torque and speed. This will be referred to below. Figure 5 and Figure 7 The logical control principle of the upper load power take-off system of the present application is described in detail.

[0052] When the vehicle is powered on at high voltage, and the vehicle mounted switch is turned on, the vehicle handbrake is set, and the vehicle speed is zero. That is to say, when the vehicle controller 600 simultaneously receives the vehicle mounted switch on signal, the vehicle handbrake set signal, and the vehicle speed signal, the vehicle controller 600 sends a relay closing command to the power distributor 700, and the power distributor 700 receives the relay closing command and closes the mounted relay. When the vehicle controller 600 receives the closing signal fed back by the power distributor 700, the vehicle controller 600 sends an enable command to the motor controller, and the motor controller receives the enable command and controls the mounted power take-off motor 100 to work.

[0053] That is to say, in this embodiment, after the new energy vehicle completes high-voltage power-on, if the vehicle controller 600 receives that the cab panel switch (or state of upload using, manual control panel switch outside the cab) is 1 and the handbrake setting signal, and the vehicle speed signal is zero, it will send an upper-mounted relay closing instruction to the power distributor 700. After receiving the instruction, the power distributor 700 closes the upper-mounted relay and feeds back the relay status. When the vehicle controller 600 receives the upper-mounted relay status feedback from the power distributor 700 as closed, it sends an enable instruction to the upper-mounted motor controller 200 through the CAN bus. After receiving the enable instruction, the upper-mounted motor controller 200 starts to control the upper-mounted power take-off motor 100 to work.

[0054] Afterwards, if the accelerator pedal signal received by the vehicle controller 600 is zero, the vehicle controller 600 sends a first speed command to the upper motor controller 200, and the upper motor controller 200 controls the upper power take-off motor 100 to output a first speed value; if the accelerator pedal signal received by the vehicle controller 600 is not zero, the vehicle controller 600 sends a torque command to the upper motor controller 200, and the upper motor controller 200 controls the upper power take-off motor 100 to output a speed value corresponding to the torque command.

[0055] That is to say, in this embodiment, when the upper system starts to operate, if the value of the accelerator pedal signal received by the vehicle controller 600 is zero, the vehicle controller 600 sends a speed control instruction to the upper motor controller 200 through the CAN signal, and the upper motor controller 200 controls the upper power take-off motor 100 to respond to the first required speed value of the vehicle controller 600. In this embodiment, the first required speed value is 1400rpm. When the throttle signal received by the vehicle controller 600 is not zero, the vehicle controller 600 sends a torque control instruction to the upper motor controller 200 through the CAN signal, and the upper motor controller controls the upper power take-off motor 100 to respond to the requested torque of the vehicle controller 600, and the requested torque will increase with the increase of the accelerator pedal.

[0056] Afterwards, if the upper motor controller 200 reports that the upper system of the vehicle is faulty, and the vehicle controller 600 determines that the upper system is faulty, the vehicle controller 600 sends an upper system stop command to the power distributor 700, and the power distributor 700 receives the stop command and disconnects the upper relay.

[0057] That is to say, during the operation of the upper installation system, if a serious fault occurs in the upper installation system, the upper installation motor controller 200 will feedback that the upper installation system is in a serious fault state or the fault level is level three, and the vehicle controller 600 will determine that the upper installation system has a fault and issue an upper installation stop working instruction. After receiving the instruction, the power distributor 700 disconnects the upper installation relay in the power distributor 700 and feeds back the relay status. After receiving the status, the upper installation motor controller 200 performs IGBT shutdown control, stops the operation of the upper installation system, and feeds back the fault status and operating status.

[0058] In addition, if a vehicle failure occurs or the vehicle key is turned off, a prohibition of operation command is sent to the vehicle controller 600. If the vehicle controller 600 receives "not working" or a delay of 10s, the vehicle controller 600 issues a command to stop the upper installation. After receiving the command, the power distributor 700 disconnects the upper installation relay in the power distributor 700 and feeds back the relay status. Afterwards, when the vehicle controller 600 receives the relay disconnection status, it controls the disconnection of the main relay of the vehicle.

[0059] According to the third aspect of the present application, a heavy-duty vehicle is provided, comprising the above-mentioned upper load power take-off integrated module; the upper load power take-off motor 100 is connected to the oil pump 800 of the upper load system of the heavy-duty vehicle. The heavy-duty vehicle can be, for example, a tractor, a dump truck, a special vehicle or a mixer truck. The heavy-duty vehicle can also be a fuel vehicle or a new energy vehicle.

[0060] This application gets rid of the reliance of the power take-off system on the gearbox in the prior art; and this application adopts an integrated modular design, which not only takes up less space but also has flexible layout, and can be transplanted to various positions as needed, with better versatility, more convenient control and energy saving. And it can be applied to direct drive models and electric drive axle models.

[0061] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A top-mounted power take-off system, characterized in that: It includes a top-mounted power take-off integrated module, which includes a top-mounted power take-off motor, a top-mounted motor controller, an integrated mounting frame, a vehicle controller and a power distributor; the power distributor includes a top-mounted relay; The upper motor controller is connected to the upper power take-off motor, and the upper power take-off motor and the upper motor controller are both integrated inside the integrated mounting frame, and the integrated mounting frame can be detachably connected to the whole vehicle; The upper motor controller is connected to the upper relay of the power distributor through a cable to obtain power for the whole vehicle; The upper body power take-off integrated module also includes a cooling water tank, a circulating water pump and a radiator; The cooling water tank, the circulating water pump and the radiator are all integrated inside the integrated mounting frame; the cooling water tank, the circulating water pump, the upper motor controller, the upper power take-off motor and the radiator are connected in series in sequence; When the vehicle upper mounting system is working, the circulating water pump is started; when the vehicle upper mounting system is not working, the circulating water pump is turned off; The upper motor controller interacts with the power distributor via CAN signals, and the upper motor controller controls the operation of the upper power take-off motor and detects the working state of the upper power take-off motor; The vehicle controller is connected to the power distributor and the upper motor controller respectively; When the vehicle is powered on and the vehicle body switch is turned on, the vehicle controller sends a relay closing command to the power distributor, and the power distributor receives the relay closing command and closes the body relay. When the vehicle controller receives the closing signal fed back by the power distributor, the vehicle controller sends a command to the body motor controller, and the body motor controller receives the enabling command and controls the body power take-off motor to work; If the upper motor controller reports that the upper power take-off system is faulty, and the vehicle controller determines that the upper power take-off system is faulty, the vehicle controller sends an upper system stop command to the power distributor, and the power distributor receives the stop command and disconnects the upper relay; When the vehicle is powered on, if the vehicle controller receives a vehicle upper switch on signal, a vehicle handbrake setting signal and a vehicle zero speed signal at the same time, the vehicle controller sends a relay closing command to the power distributor; The upper mounted power take-off system further comprises an accelerator pedal; If the accelerator pedal signal received by the vehicle controller is zero, the vehicle controller sends a first speed instruction to the upper motor controller, and the upper motor controller controls the upper power take-off motor to output a first speed value; If the accelerator pedal signal received by the vehicle controller is not zero, the vehicle controller sends a torque command to the upper motor controller, and the upper motor controller controls the upper power take-off motor to output a speed value corresponding to the torque command.

2. The upper load power take-off system according to claim 1, characterized in that: The upper load power take-off integrated module comprises a plurality of sealing plates and partition beams; The outer periphery of the integrated installation frame is closed by a plurality of the sealing plates to form a closed installation space, and a side of the integrated installation frame facing the output end of the upper mounted power take-off motor is open; The partition beam is connected to the integrated installation frame to divide the installation space into an upper space and a lower space. The upper motor controller is arranged on the partition beam and is located in the upper space; the upper power take-off motor is arranged on the integrated installation frame and is located in the lower space.

3. The upper load power take-off system according to claim 2, characterized in that: The upper mounted power take-off integrated module also includes a lifting lug and a mounting bracket; The mounting bracket is integrated into the bottom of the integrated mounting frame, and the lifting lug is integrated into the top of the integrated mounting frame; The integrated mounting frame can be mounted on the entire vehicle via a mounting bracket, and the integrated mounting frame can be lifted via the lifting ears.

4. A heavy-duty vehicle, characterized in that: It comprises a bodywork power take-off integrated module as described in any one of claims 1 to 3; the bodywork power take-off motor is connected to the oil pump of the heavy-duty vehicle bodywork system.

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