CN109680745A - A kind of more power operation mode control methods of hydrostatic driving bull-dozer - Google Patents
A kind of more power operation mode control methods of hydrostatic driving bull-dozer Download PDFInfo
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- CN109680745A CN109680745A CN201910145400.4A CN201910145400A CN109680745A CN 109680745 A CN109680745 A CN 109680745A CN 201910145400 A CN201910145400 A CN 201910145400A CN 109680745 A CN109680745 A CN 109680745A
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- dozer
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
- E02F3/841—Devices for controlling and guiding the whole machine, e.g. by feeler elements and reference lines placed exteriorly of the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The present invention relates to bull-dozer technical fields, disclose a kind of more power operation mode control methods of hydrostatic driving bull-dozer.Hydrostatic driving bull-dozer more power operation mode control methods are previously stored with a plurality of revolving speed-power (N1-N3) curve of engine in the engine controller of the hydrostatic driving bull-dozer；The control method includes determining whether that the current working of bull-dozer, the operating condition include heavy duty, middle load and underloading；According to the current working of judgement, engine controller selects speed power curve corresponding with the current working, is in bull-dozer under different power operation modes and works.The present invention makes bull-dozer be adapted to different working conditions, and is transformed to corresponding power operation mode according to real time job operating condition, improves power performance and the economy performance.
Description
Technical field
The present invention relates to bull-dozer technical field more particularly to a kind of more power operation scheme controls of hydrostatic driving bull-dozer
Method.
Background technique
Traditional bull-dozer is mechanical engine with engine, only an engine power curve.Bulldozer operating process
In, bull-dozer driver by adjusting accelerator open degree control engine output, i.e., by hand realize engine output with
The matching of working load.The control of traditional bull-dozer is higher to the technical requirements of operator, and is difficult to accomplish engine output work
The best match of rate and operating load, influences operating efficiency at the problems such as be easy to causeing power dissipation, underpower.
Summary of the invention
The purpose of the present invention is to provide a kind of more power operation mode control methods of hydrostatic driving bull-dozer, make bull-dozer
It is adapted to different working conditions, and corresponding power operation mode is transformed to according to real time job operating condition, improves dynamic property
And fuel economy.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of more power operation mode control methods of hydrostatic driving bull-dozer are provided, the hydrostatic driving bull-dozer starts
A plurality of revolving speed-power (N1-N3) curve of engine is previously stored in machine controller；The control method includes:
Determine that the current working of bull-dozer, the operating condition include heavy duty, middle load and underloading；
According to the current working of judgement, engine controller selects speed power curve corresponding with the current working,
Bull-dozer is under different power operation modes to work.
Preferably, before the current working for determining bull-dozer, manual mode or automatic mode is selected to select current working.
Preferably, under automatic mode, the engine controller is connected to the master controller of hydrostatic driving bull-dozer；
The master controller is configured as determining the current working of bull-dozer, and according to current working to the engine control
Device processed sends signal, and the engine controller automatically switches the speed power curve.
Preferably, the engine of the bull-dozer provides power, the running motor for the running motor of the bull-dozer
Drive bull-dozer walking；
The master controller judges the current working of bull-dozer, and is sent according to current working to the engine controller
Signal includes:
Bull-dozer compares the current rotating speed n of running motor under the corresponding power operation mode of current workingm1With walking horse
The revolving speed lower limit value n reachedm2, running motor revolving speed ceiling value nm3, send control to engine controller according to the result of the comparison
Signal.
Preferably, according to the setting speed n of engine under current working0, and the current gear r of walking handle, it is described
Master controller calculates bull-dozer under the corresponding power operation mode of current working, the revolving speed lower limit value n of running motorm2And walking
The revolving speed ceiling value n of motorm3。
Preferably, the master controller:
The respective value r of revolving speed under the current gear of acquisition walking handle, wherein the value range of r value is 0.5-10, and r
It is 0.5 integral multiple；
Aperture by acquiring hand throttle obtains the setting speed n of engine0；And
Acquire the current rotating speed n of running motorm1。
Preferably, the master controller calculates bull-dozer under the corresponding power operation mode of current working, and walk horse
The revolving speed lower limit value n reachedm2With the revolving speed ceiling value n of running motorm3, comprising:
nm0=n0*r*η；
nm2=nm0* A%；
nm3=nm0* B%；
Wherein, nm0For running motor rotating speed of target；η is hydraulic system transmission ratio, and the value range of η is 50%-95%；A
Value range be 40-60；The value range of B is 60-90.
Preferably, bull-dozer compares the current rotating speed n of running motor under the corresponding power operation mode of current workingm1
With the revolving speed lower limit value n of running motorm2, running motor revolving speed ceiling value nm3, comprising:
If the current rotating speed n of running motorm1Less than the revolving speed lower limit value n of running motorm2, then by current power operation mould
Formula is switched to high level-one power operation mode, if the current power work pattern of bull-dozer is peak power work pattern, protects
It is constant to hold current power work pattern；
If the current rotating speed n of running motorm1Greater than the revolving speed ceiling value n of running motorm3, then by current power operation mould
Formula is switched to low level-one power operation mode, if the current power work pattern of bull-dozer is lowest power work pattern, protects
It is constant to hold current power work pattern；
If the current rotating speed n of running motorm1Less than the revolving speed ceiling value n of running motorm3, and it is greater than turning for running motor
Fast lower limit value nm2, then keep current power work pattern constant.
Preferably, under manual mode, by manually determining the current working of bull-dozer, and manually pass through hand push button to institute
It states engine controller and sends control signal.
Preferably, pass through display real-time display current job mode, and selection automatic mode or manual mode.
Beneficial effects of the present invention: the more power operation mode control methods of hydrostatic driving bull-dozer provided in the present invention
In, by prestoring a plurality of speed power curve in engine controller.By judging the current working of bull-dozer, engine
Controller selects corresponding speed power curve, is in bull-dozer under different power operation modes and works.The above method makes
Bull-dozer is under suitable power operation mode according to real time job operating condition, and the dynamic property and production of bull-dozer can be improved
Rate, simultaneously, additionally it is possible to reduce energy consumption, improve economy.
Detailed description of the invention
Fig. 1 is the speed power curve figure prestored in engine controller of the invention；
Fig. 2 is the flow chart of the more power operation mode control methods of hydrostatic driving bull-dozer of the invention；
Fig. 3 is the relation schematic diagram of main control of the invention, engine controller and display.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
A kind of hydrostatic driving bull-dozer is provided in the present embodiment, bull-dozer includes engine running motor, engine, hair
Motivation provides power for running motor, and running motor drives the work of soil-shifting locomotive wheel, works normally bull-dozer.
Engine in the present embodiment is electric-control motor, is provided with engine controller (ECU) on engine, can basis
Actual needs edits engine controller.As shown in Figure 1, a plurality of turn of engine is stored in advance in engine controller
Speed-power curve, respectively aerodynamic power curve, calibration power curve and economic power curve.In other embodiments, may be used also
According to the real work situation of bull-dozer, editor sets a plurality of speed power curve.
As shown in Figures 2 and 3, a kind of more power operation scheme control sides of hydrostatic driving bull-dozer are provided in the present embodiment
Method, above-mentioned bull-dozer include: using the work of this control method
Determine that the current working of bull-dozer, the operating condition include heavy duty, middle load and underloading；
According to the current working of judgement, engine controller selects speed power curve corresponding with the current working,
Bull-dozer is under different power operation modes to work.
It is engine setting three by engine controller (ECU) because the engine of above-mentioned bull-dozer is electric-control motor
The different power curve of kind respectively corresponds heavy duty, middle load, three kinds of underloading different operating conditions.
Three kinds of power curve of engine call aerodynamic power curve as shown in Figure 1, under severe duty, engine power and
Torque is maximum, improves operation dynamic property and productivity.Under middle load operating condition, engine power and torque are moderate, take into account operation power
Property, productivity, stationarity and fuel economy.Under light duty, engine power and torque are small, improve operation fuel-economy
Property.
As shown in figure 3, above-mentioned bull-dozer further includes the master controller of display and bull-dozer, engine controller, display
Pass through CAN bus communication connection between device and master controller three.
Display is used to show the current working status of bull-dozer.In addition, display is touch screen, also set up on display
There is touch key-press, by " unlatching " and " closing " key set on display, passes through " unlatching " and " closing " key, Ke Yixuan
It selects and current working is selected by manual mode or automatic mode.
If selecting " closing " key, bull-dozer is manual mode during the work time.Manual rotation is installed on bull-dozer
Button, manual knob rotation respectively correspond underloading, middle load and heavily loaded three kinds of operating conditions.Three kinds of work operating conditions respectively correspond above-mentioned engine
Three speed power curves in controller, so that bull-dozer be made to be under the power operation mode of current working.
By manually determining the current working of bull-dozer, according to the actual situation, artificial rotary manual button makes hand push button
Under a certain operating condition.Control signal, engine controller switching are sent to engine controller by rotary manual button
Speed power curve is in bull-dozer under optimal power operation mode and works.By spin button to engine controller
Signal is sent, so that engine control is switched to corresponding speed power curve, so that bull-dozer be made to be in corresponding power operation
It works under mode.
If selecting " unlatching ", bull-dozer is automatic mode during the work time, and automatically controlled engine controller turns
The switching of speed-power curve, makes bull-dozer be in best work pattern automatically.
Under automatic mode, above-mentioned master controller be configured as determine bull-dozer current working, and according to current working to
Engine controller sends signal, engine controller controls speed-changing-power curve.
Specifically, master controller judges the current working of bull-dozer, and according to current working to the engine controller
Sending signal includes:
As shown in Figures 2 and 3, the relation schematic diagram of Fig. 3 is main control, engine controller and display.It is in Fig. 3
The corresponding structure of data acquisition in above-mentioned Fig. 2.Specifically, turn under the current gear of master controller acquisition walking handle
The respective value r of speed, wherein the value range of r value is 0.5-10, and r value is 0.5 integral multiple.Bull-dozer in the present embodiment
For variable speed, when bull-dozer is in drive shift, engine speed is divided into several interval ranges, in same rotating speed section model
R value in enclosing is identical, and revolving speed increases in an adjacent interval range, then r value increases by 0.5, and revolving speed is reduced to another adjacent
Interval range in, then r value reduce 0.5.Similarly, when reverse drive gear, the value range of r is also 0.5-10, the obtaining value method of r value with
It is identical when forward.
The sensor being arranged on hand throttle is acquired by master controller, by obtaining the aperture of hand throttle, and then obtains hair
The setting speed n of motivation0.And speed probe is provided on running motor, running motor sensing is acquired by master controller
The information of device, to obtain the current rotating speed n of running motorm1。
According to the setting speed n of engine above-mentioned under current working0, and the current gear r of walking handle, main control
Device calculates the revolving speed lower limit value n of running motor under current job modem2With the revolving speed ceiling value n of running motorm3。
Master controller calculates the revolving speed lower limit value n of the running motor under current job modem2With the revolving speed of running motor
Ceiling value nm3, comprising:
nm0=n0*r*η；
nm2=nm0* A%；
nm3=nm0* B%；
Wherein, nm0For running motor rotating speed of target；η hydraulic system transmission ratio, the value range of η are 50%-95%；A's
Value range is 40-60；The value range of B is 70-90.
As shown in Fig. 2, bull-dozer compares the current rotating speed of running motor under the corresponding power operation mode of current working
nm1With the revolving speed lower limit value n of running motorm2, running motor revolving speed ceiling value nm3。
Specifically, if the current rotating speed n of running motorm1Less than the revolving speed lower limit value n of running motorm2, i.e. nm1<nm2, then by
Current power work pattern is switched to high level-one power operation mode, if the current power work pattern of bull-dozer is peak power
Work pattern, then bull-dozer keeps current power work pattern constant.I.e. engine power increases, and is automatically switched by light-load mode
It for middle load mode, or by middle load pattern switching is heavily loaded mode, in the case that current engine power is heavily loaded mode, engine
Power does not adjust.
If the current rotating speed n of running motorm1Greater than the revolving speed ceiling value n of running motorm3, i.e. nm1>nm3, then by current function
Rate work pattern is switched to low level-one power operation mode, if the current power work pattern of bull-dozer is lowest power operation mould
Formula then keeps current power work pattern constant.I.e. engine power reduces, i.e., is middle load mode by heavily loaded pattern switching, or
It is light-load mode by middle load pattern switching, in the case that current engine power is light-load mode, engine power does not adjust.
If the current rotating speed n of running motorm1Less than the revolving speed ceiling value n of running motorm3, and it is greater than turning for running motor
Fast lower limit value nm2, i.e. nm2≤nm1≤nm3, then keep current power work pattern constant.
Control signal is sent to engine controller according to above-mentioned comparison result, engine controller automatically switches to turn
Speed-power curve.
The hydrostatic driving bull-dozer provided in the present embodiment has multiple power work pattern, can adapt to difference automatically
Working condition.
The more power operation mode control methods of the hydrostatic driving bull-dozer provided in the present embodiment, make hydrostatic driving bull-dozer
It can be according to the optimal power operation mode of real time job operating condition auto-changing, when real-time speed is lower than lower limit value, by current function
Rate work pattern automatically switches to high level-one power operation mode, improves bull-dozer dynamic property and productivity.When real-time speed is high
When ceiling value, low level-one power operation mode is automatically switched to by current power work pattern, reduces fuel consumption, improves warp
Ji property.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of more power operation mode control methods of hydrostatic driving bull-dozer, which is characterized in that the hydrostatic driving bull-dozer
Engine controller in be previously stored with a plurality of revolving speed-power (N1-N3) curve of engine；The control method includes:
Determine that the current working of bull-dozer, the operating condition include heavy duty, middle load and underloading；
According to the current working of judgement, engine controller selects speed power curve corresponding with the current working, makes to push away
Native machine is under different power operation modes and works.
2. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 1, which is characterized in that determine
Before the current working of bull-dozer, manual mode or automatic mode is selected to select current working.
3. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 2, which is characterized in that automatic
Under mode, the engine controller is connected to the master controller of hydrostatic driving bull-dozer；
The master controller is configured as determining the current working of bull-dozer, and according to current working to the engine controller
Signal is sent, the engine controller automatically switches the speed power curve.
4. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 3, which is characterized in that described
The engine of bull-dozer provides power, the running motor driving bull-dozer walking for the running motor of the bull-dozer；
The master controller judges the current working of bull-dozer, and sends signal to the engine controller according to current working
Include:
Bull-dozer compares the current rotating speed n of running motor under the corresponding power operation mode of current workingm1With running motor
Revolving speed lower limit value nm2, running motor revolving speed ceiling value nm3, control letter is sent to engine controller according to the result of the comparison
Number.
5. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 4, which is characterized in that according to
The setting speed n of engine under current working0, and the current gear r of walking handle, the master controller calculate bull-dozer and exist
Under the corresponding power operation mode of current working, the revolving speed lower limit value n of running motorm2With the revolving speed ceiling value n of running motorm3。
6. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 5, which is characterized in that described
Master controller:
The respective value r of revolving speed under the current gear of acquisition walking handle, wherein the value range of r value is 0.5-10, and r is
0.5 integral multiple；
Aperture by acquiring hand throttle obtains the setting speed n of engine0；And
Acquire the current rotating speed n of running motorm1。
7. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 6, which is characterized in that described
Master controller calculates bull-dozer under the corresponding power operation mode of current working, the revolving speed lower limit value n of running motorm2And row
Walk the revolving speed ceiling value n of motorm3, comprising:
nm0=n0*r*η；
nm2=nm0* A%；
nm3=nm0* B%；
Wherein, nm0For running motor rotating speed of target；η is hydraulic system transmission ratio, and the value range of η is 50%-95%；A's takes
Value range is 40-60；The value range of B is 60-90.
8. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 7, which is characterized in that bulldoze
Machine compares the current rotating speed n of running motor under the corresponding power operation mode of current workingm1With the revolving speed lower bound of running motor
Value nm2, running motor revolving speed ceiling value nm3, comprising:
If the current rotating speed n of running motorm1Less than the revolving speed lower limit value n of running motorm2, then switched by current power work pattern
Keep current if the current power work pattern of bull-dozer is peak power work pattern for high level-one power operation mode
Power operation mode is constant；
If the current rotating speed n of running motorm1Greater than the revolving speed ceiling value n of running motorm3, then switched by current power work pattern
Keep current if the current power work pattern of bull-dozer is lowest power work pattern for low level-one power operation mode
Power operation mode is constant；
If the current rotating speed n of running motorm1Less than the revolving speed ceiling value n of running motorm3, and it is greater than the revolving speed lower bound of running motor
Value nm2, then keep current power work pattern constant.
9. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 1, which is characterized in that manually
Under mode, sent by hand push button to the engine controller by manually determining the current working of bull-dozer, and manually
Control signal.
10. the more power operation mode control methods of hydrostatic driving bull-dozer according to claim 1, which is characterized in that logical
Cross display real-time display current job mode, and selection automatic mode or manual mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910145400.4A CN109680745A (en) | 2019-02-27 | 2019-02-27 | A kind of more power operation mode control methods of hydrostatic driving bull-dozer |
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| CN201910145400.4A CN109680745A (en) | 2019-02-27 | 2019-02-27 | A kind of more power operation mode control methods of hydrostatic driving bull-dozer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111237068A (en) * | 2020-02-27 | 2020-06-05 | 淮阴工学院 | Control method for improving power utilization rate of loader |
| CN111259989A (en) * | 2020-02-27 | 2020-06-09 | 淮阴工学院 | Loader cycle condition operation stage identification method |
| CN111441416A (en) * | 2020-05-07 | 2020-07-24 | 金华深联网络科技有限公司 | Excavator operation control method and system |
| CN112459162A (en) * | 2020-11-25 | 2021-03-09 | 江苏徐工工程机械研究院有限公司 | Working condition adaptive power system, control method and loader-digger |
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| CN111237068A (en) * | 2020-02-27 | 2020-06-05 | 淮阴工学院 | Control method for improving power utilization rate of loader |
| CN111259989A (en) * | 2020-02-27 | 2020-06-09 | 淮阴工学院 | Loader cycle condition operation stage identification method |
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