CN108678862B - Accelerator control system for engineering machinery and control method thereof - Google Patents
Accelerator control system for engineering machinery and control method thereof Download PDFInfo
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- CN108678862B CN108678862B CN201810252590.5A CN201810252590A CN108678862B CN 108678862 B CN108678862 B CN 108678862B CN 201810252590 A CN201810252590 A CN 201810252590A CN 108678862 B CN108678862 B CN 108678862B
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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
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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
- F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
Abstract
The invention provides an accelerator control system for engineering machinery and a control method thereof, wherein the accelerator control system is used for a double-accelerator controlled engine and comprises a hand accelerator and a foot accelerator which are respectively connected with an engine electronic control unit, the hand accelerator is an intelligent accelerator instrument and comprises an accelerator adjusting module and a first button in signal connection with the accelerator adjusting module, the accelerator control system also comprises a second button connected with the engine electronic control unit, the intelligent accelerator instrument is used for adjusting and controlling the middle rotating speed of the engine, the foot accelerator is used for adjusting the opening degree of the foot accelerator by stepping on a pedal of the foot accelerator on the basis of the middle rotating speed so as to control the rotating speed of the engine to carry out engineering operation, and the second button is used for controlling the rotating speed of the engine to be rapidly converted into a highest-empty state or an idle state after the engineering operation is finished. The invention introduces an intermediate accelerator intelligent control strategy and a one-key empty or idle strategy, so that the accelerator control is intelligent and accurate, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of vehicle engine control systems, in particular to an accelerator control system for engineering machinery and a control method thereof.
Background
The double-throttle control system applied to the existing engineering machinery such as a bulldozer and the like is generally provided with a hand throttle and a foot throttle, wherein the hand throttle is used for adjusting an intermediate throttle and controlling the intermediate rotating speed; the foot accelerator is an accelerating or decelerating accelerator and is used for controlling the engine to accelerate or decelerate between the intermediate rotating speed and the highest empty vehicle or idle speed on the basis of the intermediate accelerator.
The existing hand throttle generally adopts a knob-controlled hand throttle, a middle throttle is manually adjusted in a rotating mode, control is not accurate, and operation consumes long time. In addition, most of the engineering machinery runs under the working condition of partial accelerator in practical use, and the intermediate accelerator throttle control mode is taken as an example, when the engineering machinery works under the mode, when backing or transferring is needed to perform next earthmoving operation after earthmoving and other operations are finished, only partial accelerator can be used for backing. When the partial accelerator and the deceleration accelerator work, the condition that the vehicle can not be backed or transferred by a full accelerator in the process of backing or transferring can not be adjusted in time after the operation such as bulldozing is finished, the backing speed is slow, and the working efficiency is influenced; if the rotating speed is adjusted to the highest-altitude vehicle through the middle accelerator control knob, the operation is complicated, the time is delayed, the middle accelerator control knob needs to be reset after the adjustment is finished, the time is delayed again, and the working efficiency is influenced.
Disclosure of Invention
The object of the present invention is to solve at least one of the above drawbacks and disadvantages, and is achieved by the following technical solution.
The invention provides an accelerator control system for engineering machinery, which is used for an engine controlled by double accelerators and comprises a hand accelerator and a foot accelerator which are respectively connected with an electronic control unit of the engine, the hand throttle is an intelligent throttle instrument and comprises a throttle adjusting module and a first button in signal connection with the throttle adjusting module, the throttle control system further comprises a second button connected to the engine electronic control unit, the intelligent accelerator instrument is used for adjusting and controlling the intermediate rotating speed of the engine, the foot accelerator is used for controlling the engine to run at the intermediate rotating speed, the opening degree of the foot accelerator is adjusted by stepping on a pedal of the foot accelerator so as to control the rotating speed of the engine to carry out engineering operation, and the second button is used for controlling the rotating speed of the engine to be rapidly switched to a highest-empty vehicle state or an idle state after the engineering operation is finished.
Further, the engine controlled by the double throttle is an engine with a middle throttle and accelerator control mode or an engine with a middle throttle and accelerator control mode.
Further, if the engine is an engine with an intermediate accelerator and accelerator control mode, the set value of the intermediate rotating speed is a minimum rotating speed value, and the rotating speed of the engine can be controlled to operate between the minimum rotating speed value and the highest empty vehicle rotating speed by stepping on a pedal of the foot accelerator to carry out engineering operation; after the engineering operation is finished, the rotating speed of the engine can be quickly increased to a highest-altitude vehicle state by continuously stepping on the pedal of the foot accelerator; when the whole vehicle waits for the next round of operation, the rotating speed of the engine can be rapidly reduced to the idle speed by operating the second button.
Further, if the engine is in an intermediate accelerator and throttle reduction control mode, the set value of the intermediate rotating speed is a maximum rotating speed value, and the rotating speed of the engine can be controlled to operate between an idle speed and the maximum rotating speed value by stepping on a pedal of the foot accelerator so as to carry out engineering operation; after the engineering operation is finished, the rotating speed of the engine can be quickly increased to the highest-empty state by operating the second button.
Further, when the engineering machinery works, the rotating speed of the engine is in a partial throttle state.
Further, the highest empty state is a full throttle working condition, and when the vehicle is in the highest empty state, the rotating speed of the engine is greater than the intermediate rotating speed; when the vehicle is in the idle state, the rotation speed of the engine is less than the intermediate rotation speed.
Further, the hand throttle, the foot throttle and the second button are respectively electrically and/or communicatively connected with the engine electronic control unit.
The invention also provides a control method for the throttle control system of the engineering machinery, which is implemented according to the throttle control system for the engineering machinery and comprises the following steps:
s1: adjusting the middle rotating speed of the intelligent accelerator instrument set engine according to the control mode of the engine;
s2: operating a first button to enable the rotating speed of the engine to reach a set value of the intermediate rotating speed;
s3: the pedal of the foot accelerator is trampled to adjust the opening of the foot accelerator so as to control the rotating speed of the engine to carry out engineering operation;
s4: after the engineering operation is finished, according to the control mode of the engine, continuously trampling the pedal of the foot accelerator to quickly convert the rotating speed of the engine to the highest-altitude state for backing or transferring; or operating a second button to rapidly switch the rotating speed of the engine to the highest-empty state for backing or transferring;
s5: and repeating the steps S1 to S4 to perform the next round of engineering operation.
Further, the control mode of the engine is an intermediate accelerator and accelerator control mode, and the control method in the intermediate accelerator and accelerator control mode comprises the following steps:
s11: adjusting the middle rotating speed of an engine set by an accelerator adjusting module of an intelligent accelerator instrument according to the working condition of the engine and the engineering operation information;
s21: operating a first button to enable the rotating speed of the engine to reach a set value of the intermediate rotating speed;
s31: the rotation speed of the engine is controlled to operate between the set value of the middle rotation speed and the rotation speed of the highest-altitude vehicle by stepping on a pedal of a foot accelerator so as to carry out engineering operation;
s41: after the engineering operation is finished, the pedal of the foot accelerator is continuously trodden to quickly increase the rotating speed of the engine to the highest-altitude vehicle state for backing or transferring;
when the whole vehicle waits after backing or transferring, operating a second button to rapidly reduce the rotating speed of the engine to an idle speed;
s51: when entering the next round of engineering operation after the engineering operation is finished, judging whether the intermediate rotating speed needs to be changed again according to the working condition of the engine and the engineering operation information, if the intermediate rotating speed does not need to be changed, loosening the pedal of the foot accelerator to enable the rotating speed of the engine to be quickly recovered to the intermediate rotating speed, and continuing to step S31 to step S41; if the intermediate rotation speed needs to be changed, returning to the step S11, operating the accelerator adjustment module to perform readjustment setting on the intermediate rotation speed, and continuing to the steps S21 to S41.
Further, the control mode of the engine is an intermediate accelerator and throttle reduction control mode, and the control method in the intermediate accelerator and throttle reduction control mode comprises the following steps:
s12: adjusting the middle rotating speed of an engine set by an accelerator adjusting module of an intelligent accelerator instrument according to the working condition of the engine and the engineering operation information;
s22: operating a first button to enable the rotating speed of the engine to reach a set value of the intermediate rotating speed;
s32: the rotation speed of the engine is controlled to operate between the idle speed and the set value of the intermediate rotation speed by stepping on a pedal of a foot accelerator to carry out engineering operation;
s42: after the engineering operation is finished, operating a second button to quickly increase the rotating speed of the engine to the highest-empty state for backing or transferring;
s52: when entering the next round of engineering operation after the engineering operation is finished, judging whether the intermediate rotating speed needs to be changed again according to the working condition of the engine and the engineering operation information, if the intermediate rotating speed does not need to be changed, returning to the step S22, operating the first button to enable the rotating speed of the engine to be quickly recovered to the intermediate rotating speed, and continuing to the steps S32 to S42; if the intermediate rotation speed needs to be changed, returning to the step S12, operating the accelerator adjusting module to readjust the intermediate rotation speed, and continuing to the steps S22 to S42.
The invention has the following advantages:
(1) the intelligent control logic of the intermediate throttle is added, so that the intelligent adjustment of the intermediate throttle is facilitated, the complex operation is avoided, the intellectualization and the accuracy of the throttle control are realized, and the working efficiency is improved.
(2) According to the invention, a one-key empty vehicle control logic is added under the control logic of the middle accelerator and the accelerator, so that the engine is increased from the middle accelerator to the full accelerator in time in the process of backing or transferring, and then backing or transferring is carried out, thereby improving the working efficiency.
(3) According to the invention, a one-key idle speed control logic is added under the control logic of the middle accelerator refueling door, so that the engine can rapidly reach an idle speed state in the waiting process of the whole vehicle, the oil quantity is saved, the time is saved, and the service life of the engine is prolonged.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings.
FIG. 1 is a schematic structural diagram of a throttle control system for a construction machine according to an embodiment of the invention;
FIG. 2 is a flowchart of a method for controlling an engineering machine accelerator in an intermediate accelerator throttle control mode according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for controlling a mechanical throttle of a project in an intermediate throttle reducing control mode according to an embodiment of the present invention;
the reference numbers in the figures are as follows:
100-electronic engine control unit 1-intelligent throttle instrument
11-throttle adjustment module 12-first button
2-foot throttle 3-second button
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
A great amount of double-throttle control logics exist in the working process of engineering machinery vehicle types, and the double-throttle comprises a hand throttle and a foot throttle. The hand throttle is used for adjusting the intermediate throttle, and a user adjusts the intermediate throttle according to the requirement of the site working condition so as to ensure the engineering operation quality and the operation efficiency; the foot accelerator works in an acceleration accelerator mode or a deceleration accelerator mode. In actual use, most of engineering machinery runs under partial throttle working conditions, and the partial throttle working conditions are realized by manually controlling a middle throttle and controlling an accelerator pedal to be at a certain opening position by using the foot of a driver.
Fig. 1 shows a schematic structural diagram of a throttle control system for a construction machine according to an embodiment of the present invention. As shown in fig. 1, the throttle control system is used for a dual-throttle control logic engine, and includes a hand throttle, a foot throttle 2 and a second button 3 which are respectively electrically connected or communicatively connected with an engine electronic control unit 100, the hand throttle is an intelligent throttle instrument 1, the intelligent throttle instrument 1 is a liquid crystal display screen capable of operating, and is used for adjusting the middle rotating speed of the middle throttle control engine to be in a partial throttle state.
The connection mode of the engine electronic control unit 100, the intelligent throttle instrument 1, the foot throttle 2 and the second button 3 is not particularly limited in the present invention. The control circuit of the engine electronic control unit 100 receives the signal of the intelligent throttle instrument 1 and the signal of the foot throttle 2, controls the working state of the engine after processing the input signals, manages various actions of the engine, and the engine electronic control unit 100 adjusts the rotating speed of the engine in real time according to the running states of the engine and the whole engine to meet the requirements of the vehicle.
The intelligent accelerator instrument 1 comprises an accelerator adjusting module 11 and a first button 12 in signal connection with the accelerator adjusting module 11, the accelerator adjusting module 11 and the first button 12 are both connected with the engine electronic control unit 100, and the accelerator adjusting module 11 can adjust and display the middle rotating speed of the engine; the first button 12 can control the rotation speed of the engine to reach the middle rotation speed, and the rotation speed of the engine automatically reaches the set middle rotation speed each time the first button 12 is operated.
In this embodiment, the throttle adjusting module 11 and the first button 12 are integrated, and the screen of the intelligent throttle instrument 1 is touched to display the intermediate rotation speed value of the engine and the first button 12, and the rotation speed of the engine can be controlled to reach the set intermediate rotation speed quickly by touching the first button 12.
In another embodiment (not shown), the throttle control module 11 and the first button 12 are separately arranged, and the throttle control module 11 and the first button 12 are both connected with the engine electronic control unit 100, for example, in order to make the vehicle instrument beautiful, the first button 12 and the second button 3 are arranged together and are marked by different colors. The arrangement of the first button 12 is not particularly limited in the present invention.
During specific implementation, the intelligent accelerator instrument 1 and the foot accelerator 2 are linked, the set value N of the middle rotating speed is adjusted through the accelerator adjusting module 11, and then the rotating speed of the engine is controlled to reach the rated middle rotating speed quickly by operating the first button 12. Compared with a hand throttle rotated manually, the intelligent throttle control strategy is introduced, the intelligent throttle instrument 1 is set to be an intelligent liquid crystal adjusting display screen, the middle rotating speed can be adjusted quickly and accurately, control is accurate, and the working efficiency is improved.
The foot accelerator 2 is used for controlling the rotation speed of the engine to perform engineering work by stepping on a pedal of the foot accelerator 2 to adjust the opening of the foot accelerator 2 on the basis that the rotation speed of the engine reaches an intermediate rotation speed by using the intelligent accelerator instrument 1.
The second button 3 is a one-key idle or idle button, and is used for controlling the rotating speed of the engine to be rapidly switched to the highest idle or idle state when the engineering operation is finished. The button mode of the second button 3 is determined according to the control mode of the engine throttle. The control mode of the engine throttle is a middle throttle and throttle control mode or a middle throttle and throttle reduction control mode.
In one embodiment, when the engine is an engine of an intermediate accelerator and accelerator control mode, the set value N of the intermediate rotation speed is a minimum rotation speed value, and the control system is activated, the rotation speed of the engine is first set value N of the intermediate rotation speed (the actual value of the intermediate rotation speed of the engine is the set value N of the intermediate rotation speed) by operating the intelligent accelerator instrument 1, and then the rotation speed of the engine can be controlled to operate between the minimum rotation speed value and the maximum idling rotation speed by stepping on the pedal of the foot accelerator 2, thereby performing engineering work.
When the foot accelerator 2 is stepped on, the rotating speed of the engine starts to increase, the increasing amplitude is in proportion to the stepping amplitude of the foot accelerator 2, the highest rotating speed of the engine can be in the highest empty state, and if the foot accelerator 2 is continuously stepped on downwards, the engine keeps the highest empty state. The highest empty state is the full throttle working condition, and the rotating speed of the engine is larger than the set value of the middle rotating speed in the highest empty state. When the vehicle is in engineering operation, in order to keep partial throttle working condition, the foot throttle 2 is not fully stepped on to the bottom. For example, the engine of the road roller mostly adopts an engine with a middle accelerator and accelerator control mode, the engine is firstly operated at a middle rotating speed, and then the rotating speed of the engine is continuously increased by operating a pedal of a foot accelerator 2 to vibrate and compact the road surface.
After the engineering operation carried out under the working condition of partial accelerator is finished, the rotating speed of the engine can be quickly increased to the highest empty state by continuously stepping on the foot accelerator 2, namely the engine is increased to the working condition of full accelerator from the working condition of partial accelerator, the reverse operation or the transition operation is carried out in time, and the reverse operation or the transition speed is increased.
When the engineering operation is finished and the whole vehicle waits for the next round of operation, the rotating speed of the engine can be rapidly reduced to the idle speed by operating the second button 3, and the rotating speed of the engine in the idle speed state is smaller than the set value N of the intermediate rotating speed and is the lowest value of the rotating speed of the engine. When the engine runs at a high speed, the consumed oil amount is large; the vehicle is shut down and restarted, the starting is also larger for the oil consumption of the engine, the rotating speed of the engine is reduced to an idle speed state by operating the second button 3, the oil quantity can be saved, and the purposes of reducing emission and reducing the oil consumption are achieved.
In another embodiment, when the engine is an engine of an intermediate accelerator/throttle control mode, the set value N of the intermediate rotation speed is the maximum rotation speed value, and the rotation speed of the engine is controlled to be between the idle speed and the maximum rotation speed value by operating the intelligent accelerator meter 1 and stepping on the pedal of the foot accelerator 2 to perform the engineering work.
When the foot accelerator 2 is stepped on, the rotating speed of the engine starts to be reduced, the reduction amplitude is in a proportional relation with the stepping amplitude of the foot accelerator, the rotating speed of the engine can be in an idle state at the lowest, and if the foot accelerator is continuously stepped on downwards, the engine keeps the idle state. For example, an engine of a bulldozer is often an engine of an intermediate accelerator/throttle control mode, and the bulldozer performs a bulldozer work by first operating the engine at an intermediate rotation speed and then continuously reducing the rotation speed of the engine by operating a pedal of a foot accelerator 2.
After the engineering operation is finished, the engine can be continuously decelerated by continuously stepping on the foot accelerator 2, the highest empty state required by backing or transferring cannot be achieved, at the moment, the rotating speed of the engine can be quickly increased to the highest empty state by operating the second button 3, backing or transferring can be timely carried out, the time is saved, the working efficiency is improved, preparation is made for the next round of engineering operation, and the economic benefit is increased.
It should be understood that the above-mentioned set value N of the intermediate rotation speed is not the lowest value or the highest value that the engine rotation speed can reach, and the rotation speed of the engine may be at the lowest idle state and at the highest idle state.
In a preferred implementation, the engine speed in the highest empty state is 2100r/min, and the engine speed in the partial throttle state is 1600 r/min.
The engine electronic control unit 100 can set the rotation speed of the engine in the highest idling state or idling state, so that the engineering machinery runs at a speed within a set range, the pedal of the foot accelerator 2 is stepped to the maximum stroke, and accidents caused by the fact that the rotation speed of the engine is too high can be avoided.
FIG. 2 is a flow chart illustrating a throttle control method of a construction machine in an intermediate throttle and throttle control mode according to an embodiment of the invention. The specific control process is as follows:
s11: adjusting the middle rotating speed of the engine set by an accelerator adjusting module 11 of the intelligent accelerator instrument 1 according to the working condition of the engine and the engineering operation information;
the engineering operation information includes various kinds of information related to the operation of the engineering machine, such as engineering workload, engineering site environment, and the like.
S21: operating a first button to enable the rotating speed of the engine to reach a set value N of an intermediate rotating speed, wherein the set value N of the intermediate rotating speed is a minimum rotating speed value limited by the engine during working;
s31: the rotation speed of the engine is controlled to operate between a set value N of the middle rotation speed and the rotation speed of the highest-altitude vehicle by stepping on a pedal of a foot accelerator 2 to carry out engineering operation;
s41: after the engineering operation is finished, the pedal of the foot accelerator 2 is continuously stepped to quickly increase the rotating speed of the engine to the highest-empty state for backing or transferring;
when the whole vehicle waits after backing or transferring, the second button 3 can be operated to rapidly reduce the rotating speed of the engine to the idle speed, so that the oil quantity is saved.
S51: when entering the next round of engineering operation after the engineering operation is finished, judging whether the intermediate rotating speed of the engine needs to be changed again according to the working condition of the engine and the engineering operation information, if the intermediate rotating speed does not need to be changed, loosening the pedal of the foot accelerator 2 to quickly recover the rotating speed of the engine to the set value N of the intermediate rotating speed, and continuing to step S31 to step S41; if the intermediate speed needs to be changed, the process returns to step S11, the throttle adjustment module 11 is operated to readjust the intermediate speed, and steps S21 to S41 are continued.
FIG. 3 is a flow chart illustrating a method for controlling a work machine throttle in an intermediate throttle reduction control mode according to an embodiment of the present invention. The specific control process is as follows:
s12: adjusting the middle rotating speed of the engine by an accelerator adjusting module 11 of the intelligent accelerator instrument according to the working condition of the engine and the engineering operation information;
s22: operating the first button 12 to make the rotating speed of the engine reach a set value N of an intermediate rotating speed, wherein the set value N of the intermediate rotating speed is a maximum working rotating speed value limited by the engine;
s32: the rotation speed of the engine is controlled to run between the idle speed and the set value N of the middle rotation speed by stepping on the pedal of the foot accelerator 2 to carry out engineering operation;
s42: after the engineering operation is finished, operating the second button 3 to quickly increase the rotating speed of the engine to the highest-empty state for backing or transferring;
s52: when entering the next round of engineering operation after the engineering operation is finished, judging whether the intermediate rotating speed of the engine needs to be changed again according to the working condition of the engine and the engineering operation information, if the intermediate rotating speed does not need to be changed, returning to the step S22, operating the first button 12 to quickly recover the rotating speed of the engine to the set value N of the intermediate rotating speed, and continuing to the steps S32 to S42; if the intermediate speed needs to be changed, the process returns to step S12, the throttle adjustment module 12 is operated to readjust the intermediate speed setting, and steps S22 through S42 are continued.
According to the invention, by introducing an intelligent control strategy of the middle accelerator, a one-key empty vehicle or one-key idling strategy under a double-accelerator mode controlled by the middle accelerator, the speed can be increased from the middle accelerator to the full accelerator in time in the process of backing or transferring, the engine can quickly reach the idling speed in the waiting process of the whole vehicle, the oil quantity is saved, the accelerator control is intelligent and accurate, and the working efficiency is improved.
The invention has wide application range, is suitable for engineering machinery models working in an intermediate throttle mode such as cranes, bulldozers, road rollers and the like, and can bring considerable economic benefit.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An accelerator control system for engineering machinery, which is used for a double-accelerator controlled engine and comprises a hand accelerator and a foot accelerator which are respectively connected with an electronic control unit of the engine, it is characterized in that the hand throttle is an intelligent throttle instrument and comprises a throttle adjusting module and a first button in signal connection with the throttle adjusting module, the throttle control system further comprises a second button connected to the engine electronic control unit, the intelligent accelerator instrument is used for adjusting and controlling the intermediate rotating speed of the engine, the foot accelerator is used for controlling the engine to run at the intermediate rotating speed, the opening degree of the foot accelerator is adjusted by stepping on a pedal of the foot accelerator so as to control the rotating speed of the engine to carry out engineering operation, and the second button is used for controlling the rotating speed of the engine to be rapidly switched to a highest-empty vehicle state or an idle state after the engineering operation is finished.
2. The throttle control system for a construction machine according to claim 1, wherein the dual throttle controlled engine is an engine of a medium throttle control mode or an engine of a medium throttle control mode.
3. The throttle control system for construction machinery according to claim 2, wherein if the engine is an engine of an intermediate throttle control mode, the set value of the intermediate rotation speed is a minimum rotation speed value, and the rotation speed of the engine can be controlled to operate between the minimum rotation speed value and a maximum idling rotation speed by depressing a pedal of the foot throttle to perform construction work; after the engineering operation is finished, the rotating speed of the engine can be quickly increased to a highest-altitude vehicle state by continuously stepping on the pedal of the foot accelerator; when the whole vehicle waits for the next round of operation, the rotating speed of the engine can be rapidly reduced to the idle speed by operating the second button.
4. The throttle control system for construction machinery according to claim 2, wherein if the engine is an engine of an intermediate throttle and throttle control mode, the set value of the intermediate rotation speed is a maximum rotation speed value, and the rotation speed of the engine can be controlled to operate between an idle speed and the maximum rotation speed value by depressing a pedal of the foot throttle to perform construction work; after the engineering operation is finished, the rotating speed of the engine can be quickly increased to the highest-empty state by operating the second button.
5. The throttle control system for a construction machine according to any one of claims 1 to 4, wherein the rotation speed of the engine is in a partial throttle state when the construction machine is in operation.
6. The throttle control system for construction machinery according to any one of claims 1 to 4, wherein the highest empty state is a full throttle condition, and when the vehicle is in the highest empty state, the rotation speed of the engine is greater than the intermediate rotation speed; when the vehicle is in the idle state, the rotation speed of the engine is less than the intermediate rotation speed.
7. The throttle control system for a construction machine according to any one of claims 1 to 4, wherein the hand throttle, foot throttle and the second button are electrically and/or communicatively connected with the engine electronic control unit, respectively.
8. A control method for a throttle control system for a construction machine, which is implemented according to the throttle control system for a construction machine of any one of claims 1 to 7, characterized by comprising:
s1: adjusting the middle rotating speed of the intelligent accelerator instrument set engine according to the control mode of the engine;
s2: operating a first button to enable the rotating speed of the engine to reach a set value of the intermediate rotating speed;
s3: the pedal of the foot accelerator is trampled to adjust the opening of the foot accelerator so as to control the rotating speed of the engine to carry out engineering operation;
s4: after the engineering operation is finished, according to the control mode of the engine, continuously trampling the pedal of the foot accelerator to quickly convert the rotating speed of the engine to the highest-altitude state for backing or transferring; or operating a second button to rapidly switch the rotating speed of the engine to the highest-empty state for backing or transferring;
s5: and repeating the steps S1 to S4 to perform the next round of engineering operation.
9. The control method of the throttle control system for construction machinery according to claim 8, wherein the control mode of the engine is an intermediate throttle and throttle control mode, and the control method in the intermediate throttle and throttle control mode comprises:
s11: adjusting the middle rotating speed of an engine set by an accelerator adjusting module of an intelligent accelerator instrument according to the working condition of the engine and the engineering operation information;
s21: operating a first button to enable the rotating speed of the engine to reach a set value of the intermediate rotating speed;
s31: the rotation speed of the engine is controlled to operate between the set value of the middle rotation speed and the rotation speed of the highest-altitude vehicle by stepping on a pedal of a foot accelerator so as to carry out engineering operation;
s41: after the engineering operation is finished, the pedal of the foot accelerator is continuously trodden to quickly increase the rotating speed of the engine to the highest-altitude vehicle state for backing or transferring;
when the whole vehicle waits after backing or transferring, operating a second button to rapidly reduce the rotating speed of the engine to an idle speed;
s51: when entering the next round of engineering operation after the engineering operation is finished, judging whether the intermediate rotating speed needs to be changed again according to the working condition of the engine and the engineering operation information, if the intermediate rotating speed does not need to be changed, loosening the pedal of the foot accelerator to enable the rotating speed of the engine to be quickly recovered to the intermediate rotating speed, and continuing to step S31 to step S41; if the intermediate rotation speed needs to be changed, returning to the step S11, operating the accelerator adjustment module to perform readjustment setting on the intermediate rotation speed, and continuing to the steps S21 to S41.
10. The control method of the throttle control system for construction machinery according to claim 8, wherein the control mode of the engine is an intermediate throttle and throttle control mode, and the control method in the intermediate throttle and throttle control mode includes:
s12: adjusting the middle rotating speed of an engine set by an accelerator adjusting module of an intelligent accelerator instrument according to the working condition of the engine and the engineering operation information;
s22: operating a first button to enable the rotating speed of the engine to reach a set value of the intermediate rotating speed;
s32: the rotation speed of the engine is controlled to operate between the idle speed and the set value of the intermediate rotation speed by stepping on a pedal of a foot accelerator to carry out engineering operation;
s42: after the engineering operation is finished, operating a second button to quickly increase the rotating speed of the engine to the highest-empty state for backing or transferring;
s52: when entering the next round of engineering operation after the engineering operation is finished, judging whether the intermediate rotating speed needs to be changed again according to the working condition of the engine and the engineering operation information, if the intermediate rotating speed does not need to be changed, returning to the step S22, operating the first button to enable the rotating speed of the engine to be quickly recovered to the intermediate rotating speed, and continuing to the steps S32 to S42; if the intermediate rotation speed needs to be changed, returning to the step S12, operating the accelerator adjusting module to readjust the intermediate rotation speed, and continuing to the steps S22 to S42.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252590.5A CN108678862B (en) | 2018-03-26 | 2018-03-26 | Accelerator control system for engineering machinery and control method thereof |
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| CN201810252590.5A CN108678862B (en) | 2018-03-26 | 2018-03-26 | Accelerator control system for engineering machinery and control method thereof |
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| CN113738520A (en) * | 2021-08-09 | 2021-12-03 | 潍柴动力股份有限公司 | Loader rotating speed control method and related device |
| CN113859215A (en) * | 2021-10-25 | 2021-12-31 | 徐州重型机械有限公司 | Power system rotation speed control method, controller, vehicle and readable storage medium |
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| DE2829815A1 (en) * | 1977-07-08 | 1979-01-18 | Fiat Veicoli Ind | MANUALLY OPERATED CONTROL DEVICE FOR THE THROTTLE LEVER OF A MOTOR VEHICLE, IN PARTICULAR AN INDUSTRIAL VEHICLE |
| CN101407176A (en) * | 2008-11-24 | 2009-04-15 | 王佑夫 | Control method for manual control accelerograph for automobile and system thereof |
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| CN201614977U (en) * | 2009-12-14 | 2010-10-27 | 上海三一科技有限公司 | Crane engine throttle control device |
| CN103688038A (en) * | 2011-12-29 | 2014-03-26 | 克拉克设备公司 | Engine speed control of a vehicle with at least two throttles |
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| DE2829815A1 (en) * | 1977-07-08 | 1979-01-18 | Fiat Veicoli Ind | MANUALLY OPERATED CONTROL DEVICE FOR THE THROTTLE LEVER OF A MOTOR VEHICLE, IN PARTICULAR AN INDUSTRIAL VEHICLE |
| CN101407176A (en) * | 2008-11-24 | 2009-04-15 | 王佑夫 | Control method for manual control accelerograph for automobile and system thereof |
| CN201614977U (en) * | 2009-12-14 | 2010-10-27 | 上海三一科技有限公司 | Crane engine throttle control device |
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