CN108506100B - Throttle control device and agricultural machinery equipment - Google Patents
Throttle control device and agricultural machinery equipment Download PDFInfo
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- CN108506100B CN108506100B CN201810480472.XA CN201810480472A CN108506100B CN 108506100 B CN108506100 B CN 108506100B CN 201810480472 A CN201810480472 A CN 201810480472A CN 108506100 B CN108506100 B CN 108506100B
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- 238000000034 method Methods 0.000 description 6
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- 231100000719 pollutant Toxicity 0.000 description 3
- 238000009313 farming Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/106—Detection of demand or actuation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The application relates to an accelerator control device and agricultural machinery equipment, wherein the accelerator control device comprises a hand and foot accelerator duplex module, an accelerator connecting rod, a signal variable sensing module and an ECU (electronic control unit) electronic control module, wherein the hand and foot accelerator duplex module is connected with the signal variable sensing module through the accelerator connecting rod, and the signal variable sensing module is connected with the ECU electronic control module. Under the action of external force, the hand and foot accelerator duplex module controls the accelerator connecting rod to move, the signal variable sensing module receives a position movement signal generated when the accelerator connecting rod moves, and the position movement signal is converted and processed to output an electric signal to the ECU electric control module, and the ECU electric control module performs accelerator control according to the received electric signal. The mechanical control signals transmitted by the throttle connecting rod are converted into electric signals through the hand and foot throttle duplex module, the throttle connecting rod and the signal variable sensing module, and the accurate control of throttle oil injection is realized through the ECU electric control module, so that the stable control of the engine speed is achieved, the complicated independent electronic hand and foot throttle design is avoided, and the structure is simple and the throttle control is accurate.
Description
Technical Field
The application relates to the field of agricultural machinery, in particular to an accelerator control device and agricultural machinery equipment.
Background
In the agricultural machinery industry, the terminal of the emission throttle operating mechanism which accords with the national second-stage motor vehicle pollutant emission standard (national II emission standard for short) is directly and rigidly connected with an engine fuel injection pump, and the fuel quantity in an engine piston cylinder can be randomly and rigidly injected to cause emission exceeding standard, so that the fuel consumption is large. The agricultural machinery of the national II emission standard comprises agricultural machinery equipment such as a tractor, and the like, and when the power output torque is not established, the hand and foot accelerator position is pressed to the bottom at will by a driver, so that a galloping phenomenon is formed, and fuel in an engine piston cylinder is forced to be driven by a mechanical high-pressure oil pump for injection, so that accurate fuel injection cannot be realized.
With the implementation of the pollutant emission standard of the motor vehicle in the third stage of the country, the emission standard of the vehicle is strictly controlled, the vehicle with the national II emission standard being changed into the national III emission standard is commonly adopted in the industry, the mechanical linkage control of the mechanical hand throttle and the foot throttle is changed into the independent electronic hand throttle and electronic foot throttle control to realize the emission control, and the two types of throttle are replaced and applied, so that the cost is greatly increased, the damage rate of electronic components is high, and the wiring is staggered, messy and complex.
Disclosure of Invention
Based on the problems that emission exceeds standard and throttle control wiring is complex and easy to damage are necessary, the throttle control device and the agricultural machinery equipment with accurate oil injection and simple structure are provided.
The utility model provides a throttle controlling device, includes hand and foot throttle duplex module, throttle connecting rod, signal variable sensing module and ECU (Electronic Control Unit ) automatically controlled module, hand and foot throttle duplex module pass through the throttle connecting rod with signal variable sensing module is connected, signal variable sensing module with ECU automatically controlled module is connected.
Under the action of external force, the hand and foot accelerator duplex module controls the accelerator connecting rod to move, the signal variable sensing module receives a position movement signal generated when the accelerator connecting rod moves, and performs conversion processing to output an electric signal to the ECU electric control module, and the ECU electric control module performs accelerator control according to the received electric signal.
In one embodiment, the throttle control device further comprises a signal variable rotating handle arranged on the signal variable sensing module, and the signal variable rotating handle is connected with the throttle connecting rod;
the signal variable rotating handle is used for converting the position movement signal of the throttle connecting rod into an angle change signal and transmitting the angle change signal to the signal variable sensing module.
In one embodiment, the angle of rotation of the signal variable stem ranges from 0 ° to 70 °.
In one embodiment, the output voltage of the signal variable sensing module ranges from 0V to 5V.
In one embodiment, the input starting voltage of the ECU electronic control module is 0.37V and the maximum input voltage is calibrated to be 3.75V.
In one embodiment, the throttle control device further comprises a data transmission CAN (Controller Area Network ) bus, and the signal variable sensing module is connected with the ECU electronic control unit through the data transmission CAN bus.
In one embodiment, the data transmission CAN bus comprises a 12V power line, a throttle signal amplifying line and a negative bonding line.
In one embodiment, the data transmission CAN bus further includes a reserved throttle signal line.
In one embodiment, the accelerator control device further comprises a hand accelerator push rod and a foot accelerator pedal, wherein the hand accelerator push rod and the foot accelerator pedal are respectively connected with the hand and foot accelerator duplex module.
An agricultural machinery comprises an accelerator execution module and an accelerator control device, wherein the accelerator execution module is connected with an ECU electric control module in the accelerator control device
According to the throttle control device, the original hand and foot throttle duplex module and the original throttle connecting rod are reserved on the basis that the hardware structure of the hand throttle and the foot throttle is not changed through the throttle control device of the national II emission agricultural machinery, the mechanical control signals transmitted through the throttle connecting rod are converted into electric signals through the signal variable sensing module, and the accurate control of throttle oil injection is realized through the ECU electronic control module, so that the complicated independent electronic hand and foot throttle design is avoided, and the structure is simple and the throttle control is accurate.
Drawings
FIG. 1 is a schematic view of a throttle control device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a throttle control device according to another embodiment of the present application;
FIG. 3 is a schematic diagram of a throttle control device and a throttle execution module according to an embodiment of the present application;
fig. 4 is a schematic diagram of an input-output signal relationship of a signal variable conversion module according to an embodiment of the application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In order to increase the flexibility of mechanical equipment control and the comfort of a driver during operation, the conventional agricultural machinery equipment generally controls the operation and the running speed of the agricultural machinery through a combination of a hand throttle push rod and a foot throttle pedal, but the conventional agricultural machinery equipment controls the throttle opening through mechanical movement, and the hand and foot throttle position is pushed to the bottom by the driver at will when the power output torque is not established, so that a galloping phenomenon is easily formed. The phenomenon of runaway refers to the phenomenon that overspeed protection fails when the speed of the power machine is increased, the rotating speed is out of control and exceeds the rotating speed limit, and the phenomenon is mostly caused by faults caused by irregular operation in operation. At this time, the oil in the piston cylinder of the engine is forced to be driven by the mechanical high-pressure oil pump for injection, so that accurate oil injection cannot be realized, and the emission exceeds the standard.
Along with the implementation of the pollutant emission standard of the motor vehicle in the third stage of the country, in order to solve the problem of exceeding the standard of emission of the traditional agricultural machinery, various types of independent electronic foot accelerator and independent electronic hand accelerator are applied to agricultural machinery, the design improvement means is largely random, and although the problem of exceeding the standard of emission is solved, the problems of high investment, large design change of an operating mechanism, complicated wiring, easy damage to devices, poor sealing performance of a cab and the like are caused.
As shown in fig. 1, there is provided an accelerator control device, which includes a hand and foot accelerator duplex module 200, an accelerator link 400, a signal variable sensing module 600 and an ECU electronic control module 800, wherein the hand and foot accelerator duplex module 200 is connected with the signal variable sensing module 600 through the accelerator link 400, and the signal variable sensing module 600 is connected with the ECU electronic control module 800.
Under the action of external force, the hand and foot accelerator duplex module 200 controls the accelerator connecting rod 400 to move, the signal variable sensing module 600 receives a position movement signal generated when the accelerator connecting rod 400 moves, and converts, processes and outputs an electric signal to the ECU electric control module 800, and the ECU electric control module 800 performs accelerator control according to the received electric signal.
The accelerator control device is a device for controlling the rotation speed of an engine by controlling the opening degree of the engine of agricultural machinery equipment, the external force is acting force generated by pushing a hand accelerator push rod or stepping a foot accelerator pedal, the acting force acts on the hand and foot accelerator duplex module 200 through the hand accelerator push rod or the foot accelerator pedal, the hand and foot accelerator duplex module 200 is a component for realizing duplex control by connecting the hand accelerator push rod and the foot accelerator pedal, a hand accelerator travel chute and a foot accelerator travel chute are arranged on the hand and foot accelerator duplex module 200, and a driver can enable a connecting component of the hand and foot accelerator duplex module to move a corresponding position in the accelerator travel chute by applying external force to the accelerator push rod. The throttle link 400 is a structure for connecting the hand and foot throttle duplex module 200 and the signal variable module, and may be specifically a rigid material connecting rod, and when the connecting component in the hand throttle travel chute or the foot throttle travel chute is displaced due to the action of external force, the mechanically driven and connected throttle link 400 generates a position movement, the signal variable sensing module 600 is a sensor capable of converting a mechanical signal into an electrical signal, and the mechanical signal may be specifically a position movement signal, an angle change signal, or the like. The position moving signal of the throttle link 400 can be directly transmitted to the signal variable sensing module 600 to generate an electric signal for controlling the throttle, and can be converted into other types of signals such as angle change signals and the like through an intermediate connecting component and then converted into the electric signal for control, the signal variable sensing module 600 is a core for realizing signal conversion, compared with a mode of mechanically controlling the throttle, the signal variable sensing module 600 converts mechanical signals into electric signals, the control precision is improved, compared with other independent electronic control throttle modes, the complex layout of electronic hand throttle, electronic foot throttle and other connected electronic devices is avoided by adopting a signal conversion mode, the damage rate of the devices is reduced, and the manufacturing cost is saved. The ECU electronic control module 800 is a microcomputer controller special for a vehicle in terms of application, and the ECU calculates, stores and analyzes the input signals according to a preset program, and then outputs control instructions to control the related execution elements to work, so as to achieve the purpose of quickly, accurately and automatically controlling the engine to work. The ECU electronic control module 800 mainly can realize ignition control, speed control, fuel real-time injection control, exhaust emission control, failure protection mode, fault self-diagnosis and the like. The CPU (Central Processing Unit ) is a core part in the ECU, the CPU has the functions of calculation and control, and when the engine runs, signals of all sensors are collected to perform calculation, and the calculation result is converted into a control signal to control the work of a controlled object. The ECU also performs control of a memory, input/output interface (I/O) and other external circuits, and the memory stores an operating program that continuously compares and calculates with the collected signals of the sensors when the engine is operating, and uses the result of the comparison and calculation for control of various parameters of ignition, air-fuel ratio, idling, exhaust gas recirculation, etc. of the engine. The ECU electronic control module 800 can perform operation processing according to the received electrical signals, so as to realize accurate oil injection control of the electronic control unit pump on the engine oil cylinder.
According to the throttle control device, the original hand and foot throttle duplex module 200 and the throttle connecting rod 400 are reserved on the basis of not changing the hardware structure of the hand throttle and foot throttle through the design layout of the throttle control device for the agricultural machinery discharged by the country II, the mechanical control signal transmitted through the throttle connecting rod 400 is converted into an electric signal through the signal variable sensing module 600, and the accurate control of throttle oil injection is realized through the ECU electronic control module 800, so that the mechanical efficiency of the maximum proportioning of the engine speed and the torque output of the agricultural machinery and the accurate farming agricultural machinery with extremely high requirements corresponding to the PTO power output are achieved, the complex independent electronic hand and foot throttle design is fundamentally avoided, and the throttle control is simple in structure and accurate.
As shown in fig. 2, in one embodiment, the accelerator operation device further includes a hand accelerator pushrod 120 and a foot accelerator pedal 140, and the hand accelerator pushrod 120 and the foot accelerator pedal 140 are respectively connected to the hand and foot accelerator duplex module 200.
The hand and foot accelerator duplex module 200 may be a hand and foot accelerator sector plate, on which two travel sliding grooves are arranged, and are respectively connected with the ends of the hand accelerator push rod 120 and the foot accelerator pedal 140, when the hand accelerator push rod 120 or the foot accelerator pedal 140 is subjected to external force, the ends of the hand accelerator push rod 120 or the foot accelerator pedal 140 move in the travel sliding grooves, so as to drive the accelerator link 400 to displace. The hand throttle push rod 120 is a control end for controlling the rotation speed of the engine and enabling the engine to run at a constant speed, and when the hand throttle push rod 120 is pushed to a certain position, the applied external force is released and the speed is controlled in a current state and continuously runs, so that the hand throttle push rod 120 is generally applied to the agricultural machinery in the process of farming operation. The foot accelerator pedal 140 is a control end for controlling the speed in real time, and controls the movement of the accelerator link 400 according to the magnitude of the applied external force, thereby controlling the variation of the rotational speed of the engine, and releasing the applied external force can restore to the initial state, and the engine speed in the initial state corresponding to the foot accelerator pedal 140 is generally in an idle state, and the control of the foot accelerator pedal 140 is generally applied to the running process of the agricultural machine.
In one embodiment, during the process of applying the hand throttle push rod 120 and the foot throttle pedal 140 simultaneously, when the hand throttle push rod 120 is pushed to a certain position and then released, that is, the engine reaches the rated rotation speed (i.e. under a constant rotation speed), if the foot throttle pedal 140 is stepped on at this time to increase the speed again, the corresponding engine rotation speed is higher than the rated rotation speed of the engine acted by the hand throttle push rod 120, and the engine executes the corresponding rotation speed signal acted by the foot throttle pedal 140. When the corresponding engine speed is lower than the engine calibration speed acted on by the hand throttle push rod 120 due to the action of the foot throttle pedal 140, the corresponding signal acted on by the hand throttle push rod 120 is still executed by the engine speed.
As shown in fig. 3, in one embodiment, the throttle control device further includes a signal variable stem 500 disposed on the signal variable sensing module 600, the signal variable stem 500 is connected to the throttle link 400, and the signal variable stem 500 is used for converting a position movement signal of the throttle link 400 into an angle change signal and transmitting the angle change signal to the signal variable sensing module 600.
The signal variable rotating handle 500 is used as an intermediate structure for signal conversion, can convert the position movement signal of the throttle connecting rod 400 into an angle change signal, and compared with the position movement signal, the angle change signal is more accurate and effective in detection, and can improve the accuracy of the output signal of the signal variable sensing module 600, thereby improving the control accuracy and being beneficial to realizing the accurate control of the engine rotating speed.
In one embodiment, the angle of rotation of the signal variable stem 500 ranges from 0 ° to 70 °.
By adding the signal variable rotating handle 500, the range of the input signal can be effectively controlled by limiting the rotating angle change range of the signal variable rotating handle 500, the problem that the position movement range of the throttle connecting rod 400 is overlarge, so that the detection difficulty of the signal variable sensing module 600 is increased is avoided, and the maximum movement range of the throttle connecting rod 400 can be limited by limiting the rotating angle change range of the signal variable rotating handle 500 to 0-70 degrees, so that even if a driver pushes the hand throttle push rod 120 to the bottom or steps on the foot throttle pedal 140 to the bottom, the phenomenon of 'galloping' is not formed, and the effect of stable control is achieved. It will be appreciated that in other embodiments, the range of rotation angle variation of the signal variable stem 500 may be set according to actual needs.
In one embodiment, the output voltage of the signal variable sensing module 600 ranges from 0V to 5V.
By controlling the output voltage of the signal variable sensing module 600 to be 0V to 5V, the input voltage range suitable for engine speed control can be adjusted, and the operability is better.
In one embodiment, the input start-up voltage of the ECU electronic control module 800 is 0.37V, and the maximum input voltage is calibrated to 3.75V.
The output voltage range of the signal variable sensing module 600 is adjustable from 0V to 5V and is transmitted to the ECU electronic control module 800, when the input voltage of the ECU electronic control module 800 is lower than 0.37V, a corresponding control signal is not generated, so that the accelerator does not receive the control signal to generate a corresponding action, as the output voltage of the variable sensing module 600 continuously rises, the input voltage of the ECU electronic control module 800 correspondingly increases, the output control signal correspondingly increases, when the input voltage reaches 3.75V, the corresponding engine rotating speed reaches the maximum calibration value, when the input voltage is higher than 3.75V, the received input voltage is controlled to be continuously 3.75V, namely the maximum input voltage, the corresponding output control signal is not changed any more, and the corresponding opening degree of the accelerator is realized through the control of the input signal of the ECU electronic control module 800, so that the accurate injection of the oil quantity is achieved, and the control of the engine rotating speed is realized.
In one embodiment, the throttle control device further includes a data transmission CAN bus 700, and the signal variable sensing module 600 is connected to the ECU electronic control unit 800 through the data transmission CAN bus 700.
The CAN output communication port of the ECU electronic control module 800 accords with the J1939 protocol standard, achieves the effect of calibration and detection, is an internationally standardized serial communication protocol, and is developed in various electronic control systems in the vehicle industries of agricultural machinery, automobiles and the like due to the requirements on safety, convenience, low pollution and low cost. In order to solve the problem that the data types and the requirements on reliability are different in communication between systems, the number of the wire harnesses is increased due to the fact that the wire harnesses are formed by a plurality of buses. The CAN communication protocol achieves the effects of reducing the number of wire harnesses and carrying out high-speed communication of big data through a plurality of LANs, and compared with a common communication bus, the CAN bus has outstanding reliability, instantaneity and flexibility in data communication. The CAN bus 700 is applied to reduce the wiring of the vehicle body, so that the cost is further saved, and because the bus technology is adopted, only two CANH/CANL lines are needed for signal transmission between modules, the wiring is localized, and all other control signal lines traversing the vehicle body except the bus are not needed on the vehicle, so that the wiring cost is saved and is simple. The CAN bus 700 fully considers the influence possibly generated by the severe working environment of the vehicle, and has the characteristics of stable and reliable data of the CAN bus system, small inter-line interference and strong anti-interference capability. Specifically, the data transmission CAN bus 700 is connected with a single potentiometer of the ECU electronic control module 800 and an idle switch throttle assembly,
As shown in fig. 3, in one embodiment, the data transfer CAN bus 700 includes a throttle signal amplification line 720, a 12V power supply line 740, and a negative bond wire 760.
The 12V power cord 740 is a line provided by a power supply, and the negative electrode bonding cord 760 is a loop formed by connecting the negative electrode of the storage battery and the negative electrode of the generator with the frame, so that the frame has a negative electrode polarity, and all electrical equipment installed on the frame can form a loop by only one lead led out from the negative electrode polarity. The wiring system of the other pole of the power supply system connected with the frame is called bonding wiring system (bonding for short), and the electric wiring after bonding is adopted, so that on one hand, the wire expenditure cost can be saved, the whole vehicle cost can be reduced, and on the other hand, the problems of difficult wire laying and multiple fault points caused by excessive wires can be reduced. The accelerator signal amplification line 720 is a transmission line for transmitting an electric signal processed according to the movement position of the accelerator link 400 or the angle change of the signal variable stem 500. The accelerator signal amplifying line 720 can transmit a voltage signal with linear change of 0V to 5V to the first analog-digital conversion unit of the ECU electronic control module 800, the first analog-digital conversion unit receives the voltage of 0V to 5V output by the signal variable sensing module 600, the starting voltage of the ECU electronic control module 800 is controlled to be 0.37V, the maximum output voltage is calibrated to be 3.75V, and the processed electric signal of 0.37V to 3.75V is converted into a digital signal, so that the CPU of the ECU electronic control module 800 obtains a digital control signal, and flexible control of the oil mass injection process is realized.
In one embodiment, the data transfer CAN bus 700 also includes a reserved remote throttle signal line 780.
In order to meet the real-time control reliability of various types of agricultural machinery and the ECU electronic control module 800, a reserved throttle signal line 780 is additionally arranged in the CAN bus 700 and is connected with a second analog-to-digital conversion unit of the ECU electronic control module 800, the reserved throttle signal line 780 CAN be used for judging the reliability of the signal variable sensing module 600, when the working condition voltage of the variable sensing module 600 is larger than the set maximum voltage, namely the input voltage of the ECU electronic control module 800 is larger than 3.75V, the rotating speed exceeds the rated calibration rotating speed, the continuous speed rise of the engine controlled by the ECU also causes the phenomenon of "galloping", at the moment, according to the actual requirement, the reserved throttle signal line 780 is triggered to work, as shown in fig. 4, the maximum output voltage of the reserved throttle signal line 780 in the embodiment is half of the voltage 720 of a throttle signal amplifying line, namely the signal variable sensing module 600 CAN convert an angle signal of 0-70 degrees into a voltage signal of 0-2.5V, the corresponding voltage signal is transmitted to the ECU electronic control module 800 by the throttle signal line 780 due to sudden faults, and the reserved throttle signal line 780 plays a role in reducing speed in time, and the engine is protected.
In one embodiment, the ECU electronic control module 800 is used for meeting the control requirements of agricultural machinery of various types and the ECU electronic control module 800, and a remote manual throttle digital-to-analog conversion unit can be additionally reserved, so that an independent electronic manual throttle can be controlled, the application range of the throttle control system in the field of agricultural machinery can be enlarged, and the throttle control system has good compatibility.
In this embodiment, the accelerator control device is additionally provided with a signal variable sensing module 600 and is connected with the ECU electronic control module 800, so that an independent electronic hand accelerator device and an independent electronic foot accelerator are removed, and the accelerator control device can be widely applied to agricultural machinery including tractors, engineering machinery, diesel generating sets and the like.
The agricultural machinery comprises an accelerator execution module 900 and an accelerator control device, wherein the accelerator execution module 900 is connected with an ECU (electronic control unit) 800 in the accelerator control device.
Agricultural machinery refers to various mechanical equipment used in agricultural production, such as large and small tractors, land leveling machines, harvesting machines and the like. The device comprises an accelerator execution module 900 and an accelerator control device, wherein the accelerator execution module 900 is used for executing an instruction corresponding to an output signal of the ECU electronic control module 800 in the accelerator control device. The throttle execution module 900 comprises an electric control unit pump and an oil cylinder, wherein the ECU electric control module 800 is respectively connected with the electric control unit pump and the oil cylinder through a plurality of electromagnetic valves, and is used for generating the injection pressure of the oil injector through the unit pump. For the engine adopting the single pump type electric control fuel injection system, the number of the single pumps corresponds to that of the oil cylinders, a plurality of oil cylinders are arranged, and a plurality of single pumps are arranged, so that the oil mass injection is controlled by the single pumps, and the increasingly strict emission requirements and economy can be met. The electronic control unit pump fuel injection can freely and flexibly adjust fuel injection quantity and fuel injection timing, has the advantages of high injection pressure and fuel injection rate control, and is an effective means for realizing flexible control of the fuel injection process.
In one embodiment, the agricultural equipment further comprises an engine oil pressure sensor, a cam position sensor, a boost pressure temperature sensor, a water temperature sensor, a high-pressure pump fuel temperature sensor, an EGR valve position sensor and an EGR valve electromagnetic coil, wherein each sensor can receive corresponding signals, convert the corresponding signals into electric signals, and transmit the electric signals to the ECU electronic control module 800 for analysis and processing so as to realize comprehensive traction control and emission control requirements of the agricultural equipment.
The technical features of the above embodiments may be combined in man-machine, and for brevity of description, all possible combinations of the technical features of the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "application examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (10)
1. The accelerator control device is characterized by comprising a hand and foot accelerator duplex module, an accelerator connecting rod, a signal variable sensing module and an ECU (electronic control unit) electronic control module, wherein the hand and foot accelerator duplex module is connected with the signal variable sensing module through the accelerator connecting rod, the signal variable sensing module is connected with the ECU electronic control module, and the device also comprises a hand accelerator push rod and a foot accelerator pedal which are respectively connected with the hand and foot accelerator duplex module;
Under the action of external force, the hand and foot accelerator duplex module controls the accelerator connecting rod to move, the signal variable sensing module receives a position movement signal generated when the accelerator connecting rod moves, and performs conversion processing to output an electric signal to the ECU electronic control module, and the ECU electronic control module performs accelerator control according to the received electric signal;
The hand accelerator push rod controls the rotation speed of the engine and enables the engine to run at a constant speed, the hand accelerator push rod has a movement trend of maintaining the original position after external force is removed, the foot accelerator pedal regulates and controls the speed in real time, and the movement of the accelerator connecting rod is controlled according to the action of the applied external force, so that the change of the rotation speed of the engine is controlled, and the hand accelerator push rod has a movement trend of recovering to an initial state after the external force is removed;
when the rotating speed signal generated by the action of the foot accelerator pedal is higher than the rotating speed signal generated by the action of the hand accelerator push rod, the engine executes the rotating speed signal generated by the action of the foot accelerator pedal; and when the rotating speed signal generated by the action of the foot accelerator pedal is lower than the rotating speed signal generated by the action of the hand accelerator push rod, the engine still executes the rotating speed signal generated by the action of the hand accelerator push rod.
2. The throttle control device of claim 1, further comprising a signal variable stem disposed on the signal variable sensing module, the signal variable stem being connected to the throttle link;
the signal variable rotating handle is used for converting the position movement signal of the throttle connecting rod into an angle change signal and transmitting the angle change signal to the signal variable sensing module.
3. The throttle control apparatus according to claim 2, wherein the rotation angle of the signal variable stem varies from 0 ° to 70 °.
4. The throttle control device of claim 3, wherein the output voltage of the signal variable sensing module ranges from 0V to 5V.
5. The throttle control device of claim 1, wherein the input actuation voltage of the ECU electronic control module is 0.37V and the maximum input voltage is calibrated to 3.75V.
6. The throttle control device of claim 1, further comprising a data transmission CAN bus, wherein the signal variable sensing module is connected to the ECU electronic control module via the data transmission CAN bus.
7. The throttle control device of claim 6, wherein the data transmission CAN bus comprises a 12V power line, a throttle signal amplification line, and a negative bond line.
8. The throttle control device of claim 7, wherein the data transfer CAN bus further comprises a reserved throttle signal line.
9. The throttle control device according to claim 1, further comprising a throttle execution module, wherein the throttle execution module is used for executing an instruction corresponding to an output signal of the ECU electronic control module, the throttle execution module comprises an electronic control unit pump and an oil cylinder, the ECU electronic control module is respectively connected with the electronic control unit pump and the oil cylinder through a plurality of electromagnetic valves, and the unit pump is used for generating injection pressure of an oil injector.
10. An agricultural machine, characterized in that the agricultural machine comprises an accelerator execution module and the accelerator control device according to any one of claims 1-9, wherein the accelerator execution module is connected with an ECU electronic control module in the accelerator control device.
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| CN201810480472.XA CN108506100B (en) | 2018-05-18 | 2018-05-18 | Throttle control device and agricultural machinery equipment |
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| CN108506100B true CN108506100B (en) | 2024-05-10 |
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| CN110670663A (en) * | 2019-10-31 | 2020-01-10 | 徐工集团工程机械股份有限公司科技分公司 | Electronic double-throttle system of skid steer loader |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001097069A (en) * | 1999-09-30 | 2001-04-10 | Autech Japan Inc | Drive assisting device |
| CN201908732U (en) * | 2011-01-25 | 2011-07-27 | 江苏柳工机械有限公司 | Hand-foot-linkage accelerator operating device |
| CN202170538U (en) * | 2011-07-03 | 2012-03-21 | 山推工程机械股份有限公司 | Engine double-throttle control system of bulldozer based on CAN bus |
| WO2012042528A2 (en) * | 2010-09-28 | 2012-04-05 | Tvs Motor Company Limited | A vehicle speed control system |
| CN202227375U (en) * | 2011-09-22 | 2012-05-23 | 山推工程机械股份有限公司 | Automatic throttle control system for static hydraulic bulldozer |
| CN105644362A (en) * | 2016-03-04 | 2016-06-08 | 山东常林道依茨法尔机械有限公司 | Engine control device for wheeled tractor |
| CN106150705A (en) * | 2016-08-22 | 2016-11-23 | 上海交通大学 | Auto-manual accelerator control device and using method |
| CN107405999A (en) * | 2015-03-31 | 2017-11-28 | 爱科国际有限公司 | Vehicle accelerator system |
| CN207274423U (en) * | 2017-10-23 | 2018-04-27 | 杭州龙创汽车技术有限公司 | Throttle ECU control units switch |
| CN208633931U (en) * | 2018-05-18 | 2019-03-22 | 湖北超能农业装备有限公司 | Accelerator control device and agricultural equipment |
-
2018
- 2018-05-18 CN CN201810480472.XA patent/CN108506100B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001097069A (en) * | 1999-09-30 | 2001-04-10 | Autech Japan Inc | Drive assisting device |
| WO2012042528A2 (en) * | 2010-09-28 | 2012-04-05 | Tvs Motor Company Limited | A vehicle speed control system |
| CN201908732U (en) * | 2011-01-25 | 2011-07-27 | 江苏柳工机械有限公司 | Hand-foot-linkage accelerator operating device |
| CN202170538U (en) * | 2011-07-03 | 2012-03-21 | 山推工程机械股份有限公司 | Engine double-throttle control system of bulldozer based on CAN bus |
| CN202227375U (en) * | 2011-09-22 | 2012-05-23 | 山推工程机械股份有限公司 | Automatic throttle control system for static hydraulic bulldozer |
| CN107405999A (en) * | 2015-03-31 | 2017-11-28 | 爱科国际有限公司 | Vehicle accelerator system |
| CN105644362A (en) * | 2016-03-04 | 2016-06-08 | 山东常林道依茨法尔机械有限公司 | Engine control device for wheeled tractor |
| CN106150705A (en) * | 2016-08-22 | 2016-11-23 | 上海交通大学 | Auto-manual accelerator control device and using method |
| CN207274423U (en) * | 2017-10-23 | 2018-04-27 | 杭州龙创汽车技术有限公司 | Throttle ECU control units switch |
| CN208633931U (en) * | 2018-05-18 | 2019-03-22 | 湖北超能农业装备有限公司 | Accelerator control device and agricultural equipment |
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|---|---|
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