CN114412653A - Control method for engine of engineering equipment, processor and engineering equipment - Google Patents
Control method for engine of engineering equipment, processor and engineering equipment Download PDFInfo
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- CN114412653A CN114412653A CN202111492449.0A CN202111492449A CN114412653A CN 114412653 A CN114412653 A CN 114412653A CN 202111492449 A CN202111492449 A CN 202111492449A CN 114412653 A CN114412653 A CN 114412653A
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- 238000004590 computer program Methods 0.000 description 7
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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
- F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
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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
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
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- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of engineering machinery and discloses a control method for an engine of engineering equipment, a processor and the engineering equipment. The engineering equipment comprises an accelerator pedal, an electric control device and an engine controller, wherein the accelerator pedal is respectively connected with the engine controller and the electric control device, the electric control device is connected with the engine controller through a bus, and the control method comprises the following steps: reading a first accelerator opening signal triggered by the action of an accelerator pedal from an engine controller; receiving a second accelerator opening signal triggered by action; under the condition that at least one of the first accelerator opening degree signal and the second accelerator opening degree signal is determined to be fault-free, determining a rotating speed instruction of an engine controller according to at least one fault-free condition; the rotational speed command is sent to the engine controller so that the engine controller controls the rotational speed of the engine according to the rotational speed command. In the technical scheme, the idling condition of an engine of the engineering equipment is reduced, and the working efficiency of the engineering equipment is improved.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a control method for an engine of engineering equipment, a processor and the engineering equipment.
Background
When the engineering equipment is in an operation working condition, a user controls the power of the engine by using an accelerator pedal positioned in an operation control room, and an engine controller controls the rotating speed of the engine to a desired value according to the opening value of the accelerator pedal. The engine controller can support a single-channel opening signal or a double-channel opening signal of the accelerator.
When the double-channel opening signal is used, 6 wires from the accelerator pedal to the engine controller are used, and each channel is provided with 3 wires. The engine controller directly receives a first accelerator opening signal and a second accelerator opening signal triggered by the action of the accelerator pedal, then determines an opening value according to the first accelerator opening signal, and further determines the rotating speed of the engine according to the opening value. The second accelerator opening degree signal is a redundant signal. The first accelerator opening signal and the second accelerator opening signal are in a proportional relationship, typically a 2-fold proportional relationship. When the proportion of the first accelerator opening degree signal and the second accelerator opening degree signal is inconsistent with the set proportion, the engine controller judges the fault of an accelerator pedal or the fault of a circuit, the engine controller maintains the idling of the engine at the moment, and the idling state of the engine is maintained by the mechanism, so that the working efficiency of engineering equipment is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a control method for an engineering equipment engine, a processor and engineering equipment.
In order to achieve the above object, a first aspect of the present invention provides a control method for an engine of an engineering plant, the engineering plant including an accelerator pedal, an electronic control device and an engine controller, the accelerator pedal being connected with the engine controller to transmit a first accelerator opening signal to the engine controller, the accelerator pedal being connected with the electronic control device to transmit a second accelerator opening signal to the electronic control device, the electronic control device being connected with the engine controller through a bus to transmit the second accelerator opening signal to the engine controller, the control method comprising:
reading a first accelerator opening signal triggered by the action of an accelerator pedal from an engine controller;
receiving a second accelerator opening signal triggered by action;
judging whether the first accelerator opening signal and the second accelerator opening signal have faults or not;
under the condition that at least one of the first accelerator opening degree signal and the second accelerator opening degree signal is determined to be fault-free, determining a rotating speed instruction of an engine controller according to at least one fault-free of the first accelerator opening degree signal and the second accelerator opening degree signal;
the rotational speed command is sent to the engine controller so that the engine controller controls the rotational speed of the engine according to the rotational speed command.
In the embodiment of the present invention, the control method further includes:
under the condition that the first accelerator opening signal has a fault and the second accelerator opening signal has no fault, determining a rotating speed instruction of the engine controller according to the second accelerator opening signal;
and determining a rotating speed command of the engine controller according to the first accelerator opening signal when the second accelerator opening signal has a fault and the first accelerator opening signal has no fault.
In the embodiment of the present invention, the control method further includes:
and determining a rotating speed command of the engine controller according to the first accelerator opening signal when the bus has faults and the first accelerator opening signal has no faults.
In the embodiment of the present invention, the control method further includes:
under the condition that both the first accelerator opening signal and the second accelerator opening signal have no fault, acquiring a first opening value in the first accelerator opening signal and a second opening value in the second accelerator opening signal;
determining a smaller one of the first and second opening values;
the rotational speed command of the engine controller is determined according to the smaller one.
In the embodiment of the present invention, the control method further includes:
and sending an idling instruction to an engine controller under the condition that the first accelerator opening degree signal and the second accelerator opening degree signal have faults.
In the embodiment of the present invention, the control method further includes:
determining that the first accelerator opening signal has a fault under the condition that the first accelerator opening signal exceeds a first preset range;
and determining that the second accelerator opening signal has a fault under the condition that the second accelerator opening signal exceeds a second preset range.
A second aspect of the invention provides a processor configured to execute the above-described control method for an engineering equipment engine.
A third aspect of the invention provides an engineering device comprising the processor.
In an embodiment of the invention, the engineering equipment comprises a crane.
A fourth aspect of the present invention provides a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-described control method for an engine of a construction equipment.
In the technical scheme, the engine controller is connected with the accelerator pedal, a first accelerator opening signal triggered by the action of the accelerator pedal can be independently received, and in addition, a second accelerator opening signal triggered by the action of the accelerator pedal is transmitted to the engine controller through the electric control device. The second accelerator opening degree signal is a redundant signal triggered by the same action corresponding to the first accelerator opening degree signal. The electronic control device can read a first accelerator opening signal triggered by the action of an accelerator pedal from an engine controller, simultaneously receive a second accelerator opening signal, judge the first accelerator opening signal and the second accelerator opening signal, determine an opening value according to at least one of the first accelerator opening signal and the second accelerator opening signal without faults under the condition that at least one of the first accelerator opening signal and the second accelerator opening signal is determined to be free of faults, determine a rotating speed value according to the opening value, then send a rotating speed instruction to the engine controller based on the rotating speed value, and the engine controller controls the rotating speed of the engine according to the rotating speed instruction. Therefore, the engine controller can support the throttle opening signal of the two channels, and the electric control device can start a normal rotating speed instruction to the engine controller under the condition that the throttle opening signal of a certain channel is normal, so that the idling condition of an engine of engineering equipment caused by the fault of a throttle pedal or a line fault is reduced, and the working efficiency of the engineering equipment is improved.
In addition, when the accelerator pedal is directly connected with the engine controller, the number of lines is more, for example, 3 channels are required. In the embodiment of the invention, the electric device is connected with the engine controller by adopting the bus, so that the signal lines from the accelerator pedal to the engine controller are reduced, the circuit of the engine controller is simpler, the number of signal connecting lines from the accelerator pedal to the engine controller is better, and the probability of signal transmission faults caused by the faults of the signal lines is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 schematically illustrates a control system diagram for an engineering equipment engine, according to an embodiment of the present disclosure;
FIG. 2 schematically shows one of the flowcharts of a control method for an engine of a construction equipment according to an embodiment of the invention;
fig. 3 schematically shows a second flowchart of a control method for an engine of a construction equipment according to an embodiment of the present invention;
fig. 4 schematically shows the third flowchart of the control method for the engineering equipment engine according to the embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Fig. 1 schematically shows a control system diagram of an engine of a construction equipment according to an embodiment of the present invention. As shown in fig. 1, the engineering equipment includes an accelerator pedal 10, an electronic control device 11 and an engine controller 12, the accelerator pedal 10 is connected with the engine controller 12 to transmit a first accelerator opening signal to the engine controller 12, the accelerator pedal 10 is connected with the electronic control device 11 to transmit a second accelerator opening signal to the electronic control device 11, and the electronic control device 11 is connected with the engine controller 12 through a bus to transmit the second accelerator opening signal to the engine controller 12.
Fig. 2 schematically shows a flowchart of a control method for an engine of a construction machine according to an embodiment of the present invention. As shown in fig. 2, in an embodiment of the present invention, there is provided a control method for an engine of construction equipment, including the steps of:
in step 205, a rotational speed command is sent to the engine controller 12 to cause the engine controller 12 to control the rotational speed of the engine in accordance with the rotational speed command.
The second accelerator opening degree signal is a redundant signal triggered by the same action corresponding to the first accelerator opening degree signal. Under normal conditions, the first accelerator opening signal and the second accelerator opening signal contain the same signal information and are transmitted through different channels. The first accelerator opening signal and the second accelerator opening signal are triggered by the same action of the accelerator pedal 10, then the first accelerator opening signal is transmitted to the engine controller 12 through a signal line, and the second accelerator signal is transmitted to the electric control device 11 through a signal line.
Under the working condition of engineering equipment, when the bus communication between the electric control device 11 and the engine controller 12 is normal, the electric control device 11 CAN read a first accelerator opening signal sent by the engine controller 12 through a CAN bus, and then obtain a first opening value of the first accelerator opening signal and a second opening value of a second accelerator opening signal. The first opening value is also referred to as a first throttle opening value and the second opening value is also referred to as a second throttle opening value. The electric control device 11 judges the first throttle opening value and the second throttle opening value, determines the throttle opening value within the preset range as no fault, and determines the throttle opening value not within the preset range as fault. Compared with the prior art that when the proportion of the first accelerator opening degree signal and the second accelerator opening degree signal is not consistent with the set proportion, the engine controller judges whether the accelerator pedal is in fault or line fault, but the fault signal and the channel are the first accelerator opening degree signal or the second accelerator opening degree signal cannot be determined.
Because the first accelerator opening degree signal and the second accelerator opening degree information may be in a proportional relationship, a first preset range corresponding to the first accelerator opening degree signal and a second preset range corresponding to the second accelerator opening degree signal may be different. And when the first accelerator opening value is not in the first preset range, determining that the first accelerator opening value is abnormal, and determining that the first accelerator opening signal has a fault. And when the first accelerator opening value is within a first preset range, determining that the first accelerator opening value is normal, and determining that the first accelerator opening signal is fault-free. And when the second accelerator opening value is not in a second preset range, determining that the second accelerator opening value is abnormal, and determining that the second accelerator opening signal has a fault. And when the second accelerator opening value is within a second preset range, determining that the second accelerator opening value is normal, and determining that the second accelerator opening signal is fault-free. The first accelerator opening degree signal is connected with an engine controller 12, the second accelerator opening degree signal is connected with an electric control device 11, and the electric control device 11 can respectively detect 2 paths of independent accelerator opening degree signals in real time.
Under the condition that the first accelerator opening signal is determined to have a fault and the second accelerator opening signal is determined to have no fault, the electronic control device 11 acquires an opening value of an accelerator pedal according to the second accelerator opening signal, then determines a rotating speed value according to the second accelerator opening value, and then the electronic control device 11 sends a rotating speed instruction to the engine controller 12 through the CAN bus. The engine controller 12 receives a rotation speed command sent from the electronic control device 11, and controls the rotation speed of the engine according to the rotation speed command. Similarly, in the event that it is determined that there is a fault in the second accelerator opening signal and that there is no fault in the first accelerator opening signal, a rotational speed command for the engine controller 12 is determined from the first accelerator opening signal. Therefore, the idle speed of the engine caused by the fault of any throttle opening signal is avoided, the idle speed condition of the engine of the engineering equipment is reduced, and the influence on the working efficiency of the engineering equipment caused by the idle speed maintenance of the engine is reduced.
Under the working condition of the engineering equipment, the engine controller 12 monitors the heartbeat message of the bus of the electric control device through the CAN bus to judge whether the bus communication of the electric control device is normal. Under the condition that the bus from the electric control device 11 to the engine controller 12 has a fault and the first accelerator opening signal has no fault, the rotating speed instruction of the engine controller 12 is determined according to the first accelerator opening signal, so that the rotating speed control can be realized by the accelerator pedal when the bus has a fault, the condition that the engine is kept idling due to the bus fault is avoided, the idling condition of the engine of the engineering equipment is reduced, and the working efficiency of the engineering equipment is improved. The engine controller can control the rotating speed of the engine to a desired value according to the opening value of the accelerator pedal 10 or the rotating speed instruction of the bus, and the control of the rotating speed of the engine by 2 different types of signals is realized.
Under the condition that the first accelerator opening degree signal and the second accelerator opening degree signal are determined to be both fault-free, the electric control device 11 compares the first accelerator opening degree value with the second accelerator opening degree value, determines the smaller accelerator opening degree value of the first accelerator opening degree value and the second accelerator opening degree value, and then determines the rotating speed instruction of the engine controller 12 according to the smaller accelerator opening degree value of the first accelerator opening degree value and the second accelerator opening degree value. The smaller throttle opening value of the two is selected to ensure the operation safety of the engineering equipment, simultaneously avoid the situation that the engine maintains idle speed due to the disproportionate relation of two-channel signals, reduce the idle speed condition of the engine of the engineering equipment and further improve the operation efficiency of the engineering equipment.
In order to avoid an accident of the engineering equipment and to ensure the operation safety of the engineering equipment, an idle speed command is sent to the engine controller 12 at this time, and the engine maintains an idle speed, or other safety commands may be sent to the engine controller 12, for example, a fixed lower rotation speed command is sent to the engine controller. An idle command is also sent to the engine controller 12 in the event that a fault is determined to exist on both the bus and the first accelerator opening signal.
In the embodiment of the present invention, the electronic control device 11 determines 2 accelerator opening degree signals, and then sends a rotation speed instruction to the engine controller 12 through the bus. Fig. 3 schematically shows a second flowchart of a control method for an engine of a construction equipment according to an embodiment of the present invention, and reference may be made to fig. 3. When the bus from the electric control device 11 to the engine controller 12 fails, the engine controller 12 controls the rotating speed of the engine according to the first accelerator opening degree signal, and redundant control of the rotating speed of the engine under the working condition of the engineering equipment is realized.
Under the working condition of the engineering equipment, the engine controller 12 monitors the heartbeat message of the bus of the electric control device through the CAN bus to judge whether the bus communication of the electric control device is normal. When the bus communication is normal, the rotational speed of the engine is controlled in accordance with a bus command transmitted from the electronic control device 11. When the bus is in fault, the rotating speed of the engine is controlled according to the first accelerator opening degree value, and if the first accelerator opening degree signal is in fault, the engine keeps idling. Fig. 4 schematically shows a third flowchart of a control method for an engine of a construction equipment according to an embodiment of the present invention, and reference may be made to fig. 4.
In the technical scheme of the embodiment of the invention, the engine controller 12 is connected with the accelerator pedal 10, and can independently receive a first accelerator opening signal triggered by the action of the accelerator pedal 10, and in addition, a second accelerator opening signal triggered by the action of the accelerator pedal 10 is transmitted to the engine controller 12 through the electric control device 11. The second accelerator opening degree signal is a redundant signal triggered by the same action corresponding to the first accelerator opening degree signal. The electronic control device 11 may read a first accelerator opening signal triggered by an operation of the accelerator pedal 10 from the engine controller 12, receive a second accelerator opening signal, determine the first accelerator opening signal and the second accelerator opening signal, determine an opening value according to at least one of the first accelerator opening signal and the second accelerator opening signal without a fault when it is determined that at least one of the first accelerator opening signal and the second accelerator opening signal is fault-free, determine a rotation speed value according to the opening value, send a rotation speed instruction to the engine controller 12 based on the rotation speed value, and the engine controller 12 controls the rotation speed of the engine according to the rotation speed instruction. Compared with the prior art, the proportion of the throttle opening degree signal of the 2-way throttle is inconsistent with the set proportion due to the fact that a certain channel signal is in fault or is interfered or a line fault can cause the proportion of the throttle opening degree signal of the 2-way throttle to be inconsistent with the set proportion, then the engine keeps idling, and the engine keeps more idling states.
In addition, when the accelerator pedal 10 is directly connected to the engine controller 12, there are many lines, for example, 3 lines may be required for each channel. In the embodiment of the invention, the electric device 11 is connected with the engine controller 12 by adopting a bus, so that signal lines from the accelerator pedal 10 to the engine controller 12 are reduced, the circuit of the engine controller 12 is simpler, the number of signal lines from the accelerator pedal to the engine controller is better, and the probability of signal transmission faults caused by the faults of the signal lines is reduced.
In the embodiment of the invention, the reliability judgment of the accelerator opening degree signal of the working condition of the engineering equipment and the redundant control of the rotating speed of the engine are realized, and the control system has a simple structure and is easy to implement. And the electric control device 11 is adopted to compare and judge the opening degree value corresponding to the double-channel accelerator opening degree signal, and the selection of the accelerator control instruction rotating speed value is realized by combining the fault condition of the signal and the signal is sent through a bus.
An embodiment of the present invention provides a processor configured to execute the control method for an engineering equipment engine described in the above embodiment.
The engineering equipment comprises an accelerator pedal, an electric control device and an engine controller, wherein the accelerator pedal is connected with the engine controller to transmit a first accelerator opening degree signal to the engine controller, the accelerator pedal is connected with the electric control device to transmit a second accelerator opening degree signal to the electric control device, and the electric control device is connected with the engine controller through a bus to transmit a second accelerator opening degree signal to the engine controller.
In particular, the processor may be configured to:
reading a first accelerator opening signal triggered by the action of an accelerator pedal from an engine controller;
receiving a second accelerator opening signal triggered by action;
judging whether the first accelerator opening signal and the second accelerator opening signal have faults or not;
under the condition that at least one of the first accelerator opening degree signal and the second accelerator opening degree signal is determined to be fault-free, determining a rotating speed instruction of an engine controller according to at least one fault-free of the first accelerator opening degree signal and the second accelerator opening degree signal;
the rotational speed command is sent to the engine controller so that the engine controller controls the rotational speed of the engine according to the rotational speed command.
In an embodiment of the invention, the processor is further configured to:
under the condition that the first accelerator opening signal has a fault and the second accelerator opening signal has no fault, determining a rotating speed instruction of the engine controller according to the second accelerator opening signal;
and determining a rotating speed command of the engine controller according to the first accelerator opening signal when the second accelerator opening signal has a fault and the first accelerator opening signal has no fault.
In an embodiment of the invention, the processor is further configured to:
and determining a rotating speed command of the engine controller according to the first accelerator opening signal when the bus has faults and the first accelerator opening signal has no faults.
In an embodiment of the invention, the processor is further configured to:
under the condition that both the first accelerator opening signal and the second accelerator opening signal have no fault, acquiring a first opening value in the first accelerator opening signal and a second opening value in the second accelerator opening signal;
determining a smaller one of the first and second opening values;
the rotational speed command of the engine controller is determined according to the smaller one.
In an embodiment of the invention, the processor is further configured to:
and sending an idling instruction to an engine controller under the condition that the first accelerator opening degree signal and the second accelerator opening degree signal have faults.
In an embodiment of the invention, the processor is further configured to:
determining that the first accelerator opening signal has a fault under the condition that the first accelerator opening signal exceeds a first preset range;
and determining that the second accelerator opening signal has a fault under the condition that the second accelerator opening signal exceeds a second preset range.
The embodiment of the invention provides engineering equipment comprising the processor.
In an embodiment of the invention, the engineering equipment comprises a crane. In particular, the crane may be a wheeled crane. The work equipment may also comprise other types of mechanical equipment and is not limited to cranes.
The embodiment of the invention provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions are used for enabling a machine to execute the control method for the engineering equipment engine.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transmyedia) such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A control method for an engine of an engineering equipment, wherein the engineering equipment comprises an accelerator pedal, an electric control device and an engine controller, the accelerator pedal is connected with the engine controller to transmit a first accelerator opening signal to the engine controller, the accelerator pedal is connected with the electric control device to transmit a second accelerator opening signal to the electric control device, the electric control device is connected with the engine controller through a bus to transmit the second accelerator opening signal to the engine controller, the control method comprises:
reading a first accelerator opening signal triggered by the action of an accelerator pedal from an engine controller;
receiving a second accelerator opening signal triggered by the action;
judging whether the first accelerator opening signal and the second accelerator opening signal have faults or not;
determining a rotational speed command of the engine controller according to at least one of the first accelerator opening signal and the second accelerator opening signal without a fault when at least one of the first accelerator opening signal and the second accelerator opening signal is determined to be fault-free;
sending the rotation speed instruction to the engine controller so that the engine controller controls the rotation speed of the engine according to the rotation speed instruction.
2. The control method according to claim 1, characterized by further comprising:
under the condition that the first accelerator opening signal is determined to have a fault and the second accelerator opening signal is determined to have no fault, determining a rotating speed instruction of the engine controller according to the second accelerator opening signal;
and under the condition that the second accelerator opening signal is determined to have a fault and the first accelerator opening signal has no fault, determining a rotating speed instruction of the engine controller according to the first accelerator opening signal.
3. The control method according to claim 1, characterized by further comprising:
and under the condition that the bus is determined to have a fault and the first accelerator opening signal has no fault, determining a rotating speed instruction of the engine controller according to the first accelerator opening signal.
4. The control method according to claim 1, characterized by further comprising:
under the condition that the first accelerator opening signal and the second accelerator opening signal are determined to be fault-free, a first opening value in the first accelerator opening signal and a second opening value in the second accelerator opening signal are obtained;
determining a smaller one of the first and second opening values;
determining a speed command of the engine controller based on the smaller one.
5. The control method according to claim 1, characterized by further comprising:
and sending an idle speed instruction to the engine controller under the condition that the first accelerator opening degree signal and the second accelerator opening degree signal are determined to have faults.
6. The control method according to claim 1, characterized by further comprising:
determining that the first accelerator opening signal has a fault under the condition that the first accelerator opening signal is not in a first preset range;
and determining that the second accelerator opening signal has a fault under the condition that the second accelerator opening signal is not in a second preset range.
7. A processor characterized by being configured to execute the control method for an engineering equipment engine according to any one of claims 1 to 6.
8. An engineering device, characterized in that it comprises a processor according to claim 7.
9. The work apparatus of claim 8, wherein said work apparatus comprises a crane.
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