CN109778937A - A kind of self-optimizing control device and method based on broken operating condition - Google Patents
A kind of self-optimizing control device and method based on broken operating condition Download PDFInfo
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- CN109778937A CN109778937A CN201811531197.6A CN201811531197A CN109778937A CN 109778937 A CN109778937 A CN 109778937A CN 201811531197 A CN201811531197 A CN 201811531197A CN 109778937 A CN109778937 A CN 109778937A
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Abstract
The invention discloses a kind of self-optimizing control device and methods based on broken operating condition, including master controller, electronic monitor, engine controller, speed probe, main pump pressure sensor and main pump proportioning valve, the electronic monitor and engine controller pass through bus and are connected with the master controller；The speed probe is used to monitor the revolving speed of the engine in excavator, and output end is connected with the input terminal of the engine controller；The main pump pressure sensor be set to excavator on main pump oil outlet, detect the oil outlet pressure of main pump, output end be connected with the input terminal of the master controller；The main pump proportioning valve is connected with the control output end of the master controller, is connected for the hydraulic pump with quartering hammer, controls the discharge capacity of hydraulic pump.The present invention can be realized accurate efficient power match, the energy-saving effect of lifting device.
Description
Technical field
The invention belongs to excavator electrohydraulic control technology fields, and in particular to a kind of self-optimizing control based on broken operating condition
Device and method.
Background technique
Hydraulic breaking hammer is one kind using hydraulic energy as power source, and hydraulic energy is converted to mechanical strike during the motion
Kinetic energy, thus the device for making piston that drill steel be pushed to carry out crushing operation.It has noise as a kind of novel breaking tool
It is small, the features such as crushing performance is superior, energy conservation and environmental protection.
Hydraulic crawler excavator is a kind of extensive engineering mechanical device of mobile flexible Application, and front end equipment can flexibly be taken
A variety of equipments are carried, realize the effect of one-machine-multi-function.In the 21st century, China rapid economic development, infrastructure and mining
Equal development are swift and violent, and domestic excavator ownership persistently rises.From the key technical index excavator for measuring quartering hammer industry development
From the point of view of hammer rate, our quartering hammer rates are only 6.2% since 2006, the only excavator of 10 years time China by 2016
Quartering hammer rate develops to 20%, and the developed countries such as America and Europe digging machine disintegrating hammer rate reaches 35% according to statistics, and the states such as Japan and Korea S are up to
60%, therefore China's hydraulic breaking hammer development space is huge.
National correlation functional department starts to reinforce the supervise and examine dynamics to environmental protection, and the usage amount of strict control engineering explosive is dug
Pick machine, which carries quartering hammer, plays increasingly important role in engineering construction and mining.
Currently, domestic still insufficient to the research of quartering hammer control technology, quartering hammer power setting is unreasonable, matches not
It is able to achieve precisely matching and causes energy loss, therefore the research and application to crushing technology should be reinforced.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes a kind of self-optimizing control device and method based on broken operating condition, by broken
Broken power is found under scheduled several revolving speeds from optimizing or frequency from the method for optimizing, according to engine consumption characteristic curve
Optimum oil consumption value and corresponding main pump proportioning valve current value under a certain revolving speed, and the control parameter of optimizing is respectively stored in different
Under breaking patterns, to realize precisely efficient power match, lifting system energy-saving effect；The present invention can also be by broken simultaneously
The monitoring of broken key parameter promotes the operation management to machine.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the invention is realized by the following technical scheme:
In a first aspect, the present invention provides a kind of self-optimizing control devices based on broken operating condition, comprising:
Master controller；
Electronic monitor and engine controller, the electronic monitor and engine controller pass through bus with it is described
Master controller is connected；The electronic monitor is used to carry out the parameter setting and the choosing of optimal-search control mode of self-optimizing control device
It selects；The output end of the engine controller with the control terminal of the engine in excavator for being connected；
Speed probe, the speed probe are used to monitor the revolving speed of the engine in excavator, output end and institute
The input terminal for stating engine controller is connected；
Main pump pressure sensor, the main pump pressure sensor are set to the oil outlet of main pump on excavator, detect main pump
Oil outlet pressure, output end be connected with the input terminal of the master controller；
Main pump proportioning valve, the main pump proportioning valve are connected with the control output end of the master controller, are used for and quartering hammer
Hydraulic pump be connected, control the discharge capacity of hydraulic pump.
Preferably, the self-optimizing control device based on broken operating condition further includes nitrogen pressure sensor, the nitrogen
Pressure sensor detects the pressure of nitrogen in the nitrogen chamber of quartering hammer, output end and the master for being mounted on quartering hammer
The input terminal of controller is connected.
Preferably, the self-optimizing control device based on broken operating condition further include: be set to quartering hammer and be crushed guide's oil circuit
On broken pilot pressure sensor, for detecting the pressure in broken guide's oil circuit, output end and the master controller
Input terminal is connected；
The main pump pressure sensor, broken pilot pressure sensor and nitrogen pressure sensor are voltage-type sensing
Device exports the voltage signal of 0.5-4.5V；
Or the main pump pressure sensor, broken pilot pressure sensor and nitrogen pressure sensor are that current mode passes
Sensor exports the current signal of 4-20mA.
Preferably, the self-optimizing control device further includes GPS controller, and the GPS controller is connected with master controller,
For carrying out remote data monitoring.
Second aspect, the present invention provides a kind of control methods of self-optimizing control device based on broken operating condition, comprising:
(1) at least one optimal-search control mode is preset in the host controller, is respectively set under each optimal-search control mode
The broken power mode of at least one, each broken power mode are equipped with corresponding target value；
(2) using the maximum stream flow Q and pressure value P of electronic monitor setting quartering hammer, for calculating quartering hammer most
Big input power Wmax；
(3) a certain optimal-search control mode is chosen using electronic monitor, self-optimizing control device enters a certain broken power
Mode；
(4) master controller in self-optimizing control device constantly adjusts the current value of main pump proportioning valve under scheduled revolving speed
Target value corresponding to power mode is crushed with this until searching out；
(5) after searching out target value, after self-optimizing control device operates setting time with the target value, by master controller
Obtain engine speed, the current value of main pump proportioning valve and engine average fuel consumption value in speed probe；
(6) change scheduled tachometer value, repeat step (4) and (5), so that self-optimizing control device is under each desired speed
Respectively carry out target value searching, and by master controller record corresponding engine speed, main pump proportioning valve current value and
Engine average fuel consumption value；
(6) the engine average fuel consumption value under more each desired speed, and start engine average fuel consumption value is the smallest
Machine revolving speed, main pump proportioning valve are set as the parameter of the broken power mode, complete the parameter calibration of the broken power mode；
(7) step (3)-(6) are repeated, until completing the parameter calibration of all broken power modes.
Preferably, described to preset at least one optimal-search control mode in the host controller, under each optimal-search control mode
At least a kind of broken power mode is respectively set, each broken power mode is equipped with corresponding target value specifically:
Two optimal-search control modes, respectively frequency optimal-search control mode and power optimizing are preset in the host controller
Control model；
Three kinds of broken power modes, respectively light-load mode, mode standard and heavy duty are respectively provided under each optimal-search control mode
Mode；
Under frequency optimal-search control mode, the corresponding target value of three kinds of broken power modes is respectively first object frequency
Value, the second target frequency value and third target frequency value；
Under power optimal-search control mode, the corresponding target value of three kinds of broken power modes is respectively first object power
Value, the second target power value and third target power value.
Preferably, the first object frequency values, the second target frequency value and third target frequency value relationship are as follows:
First object frequency values < the second target frequency value < third target frequency value；
The first object performance number, the relationship of the second target power value and third target power value are as follows:
First object performance number < the second target power value < third target power value, wherein the third target power value
Less than or equal to the maximal input W of quartering hammermax。
Preferably, in the step (4) further include:
After the master controller in self-optimizing control device is detected from the signal of broken pilot pressure sensor, then open
The signal of beginning acquisition main pump pressure sensor.
Preferably, in the step (4) further include:
The nitrogen charging pressure P in nitrogen pressure sensor is obtained using master controllern0；
When master controller determines the nitrogen charging pressure value Pn0With preset pressure value PnDifference be more than setting threshold
When value, then generates nitrogen chamber low pressure and perhaps superpressure standby signal and transmit the nitrogen chamber low pressure or superpressure standby signal
Electron monitor does corresponding nitrogen pressure abnormal prompt by electronic monitor, adjusts corresponding nitrogen charging pressure for operator
Power, when the master controller in self-optimizing control device detects the signal from broken pilot pressure sensor, and nitrogen charging pressure
After meeting the requirement of setting, then start the signal for acquiring main pump pressure sensor, when main pump pressure value is more than that setting value is surpassed
Pressure alarm.
Preferably, the control method of the self-optimizing control device based on broken operating condition further include:
(8) the related operating parameter of quartering hammer is sent to GPS controller using master controller.
Compared with prior art, beneficial effects of the present invention:
The present invention, from optimizing or frequency from the method for optimizing, is existed by broken power according to engine consumption characteristic curve
Optimum oil consumption value under a certain revolving speed (i.e. engine average fuel consumption value is minimum) and corresponding main pump ratio are found under scheduled several revolving speeds
Example valve current value, and the control parameter of optimizing is respectively stored under different broken power modes, to realize precisely efficient
Power match, lifting system energy-saving effect；The present invention can also be promoted by the monitoring of broken key parameter to machine simultaneously
Operation management.
This invention simplifies the power settings of quartering hammer, are three kinds of power modes, Yong Huke by the work simplification of quartering hammer
To select oneself operating mode according to different needs.
The present invention may be implemented to demarcate in fast accurate of the different breaking patterns to quartering hammer control parameter.
The monitoring and upload of the parameters such as nitrogen charging pressure, broken runing time, hammer striking frequency may be implemented in the present invention, is promoted
Monitoring operation and management to machine.
Detailed description of the invention
Fig. 1 is the electric functional block diagram of the self-optimizing control device based on broken operating condition of an embodiment of the present invention；
Fig. 2 is the frequency optimal-search control process of an embodiment of the present invention；
Fig. 3 is the power optimal-search control process of an embodiment of the present invention；
In figure, 1. master controllers, 2. electronic monitors, 3.GPS controller, 4. main pump pressure sensors, 5. broken guides
Pressure sensor, 6. nitrogen pressure sensors, 7. main pump proportioning valves, 8. engine controller, 9. speed probe.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
Embodiment 1
The embodiment of the invention provides a kind of self-optimizing control devices based on broken operating condition, comprising:
Master controller, the master controller are used to control the power output of quartering hammer, in the specific implementation, can directly from
Master controller of the existing controller chip as the embodiment of the present invention is purchased on the market；
Electronic monitor 2 and engine controller 8；The electronic monitor 2 and engine controller 8 by bus with
The master controller is connected；Preferably, the electronic monitor 2 and engine controller 8 pass through CAN bus and the master control
Device processed is connected；The electronic monitor 2 is used to carry out the parameter setting and optimal-search control model selection of self-optimizing control device,
In actual application, the electronic monitor 2 can select touch control display, it is also an option that other can be realized display
With the device of control, the connection relationship between master controller is the prior art, therefore, in the present embodiment does not do excessive go to live in the household of one's in-laws on getting married
It states；The output end of the engine controller 8 is also used to be connected with the control terminal of the engine in excavator, starts for controlling
The revolving speed of machine；The engine is used to drive and operate with the hydraulic pump in quartering hammer, i.e., will drive after engine operating
Hydraulic oil pump is sent in executing agency's quartering hammer by hydraulic pump operating after hydraulic pump operating, is provided needed for movement for quartering hammer
Energy；
Speed probe 9, the speed probe 9 are used to monitor the revolving speed of engine in excavator, output end with
The input terminal of the engine controller 8 is connected, for the revolving speed of collected engine to be sent to engine controller 8；
Main pump pressure sensor 4, the main pump pressure sensor 4 are used for the main pump oil outlet being mounted in excavator,
The oil outlet pressure of real-time detection main pump, output end are connected with the input terminal of the master controller；
Main pump proportioning valve 7, the main pump proportioning valve 7 are connected with the control output end of the master controller, are used for and are crushed
The hydraulic pump of hammer is connected, and controls the discharge capacity of hydraulic pump.
In conclusion the working principle of the self-optimizing control device based on broken operating condition in the present embodiment are as follows:
(1) at least one optimal-search control mode is preset in the host controller, is respectively set under each optimal-search control mode
The broken power mode of at least one, each broken power mode are equipped with corresponding target value；
(2) the maximum stream flow Q and pressure value P of quartering hammer are set using electronic monitor 2, for calculating quartering hammer most
Big input power Wmax, the maximal input WmaxCalculation formula are as follows: Wmax=(P*Q)/60；
(3) choose a certain optimal-search control mode using electronic monitor 2, self-optimizing control device according to setting rule into
Enter a certain broken power mode；
(4) master controller in self-optimizing control device constantly adjusts the electric current of main pump proportioning valve 7 under scheduled revolving speed
Value is crushed target value corresponding to power mode with this until searching out；
(5) after searching out target value, after self-optimizing control device operates setting time with the target value, by master controller
Obtain engine speed, the current value of main pump proportioning valve 7 and engine average fuel consumption value in speed probe 9；It is described to start
Machine average fuel consumption value is the instantaneous friendly value by reading engine and adds up, through calculating this section after adding up after a period of time
Then the oil consumption of time is obtained divided by the cumulative time；
(6) change scheduled tachometer value, repeat step (4) and (5), so that self-optimizing control device is under each desired speed
Respectively carry out target value searching, and by master controller record corresponding engine speed, main pump proportioning valve 7 current value and
Engine average fuel consumption value；
(6) the engine average fuel consumption value under more each desired speed, and start engine average fuel consumption value is the smallest
Machine revolving speed, main pump proportioning valve 7 are set as the parameter of the broken power mode, complete the parameter calibration of the broken power mode；
(7) step (3)-(6) are repeated, until completing the parameter calibration of all broken power modes.
Embodiment 2
Based on embodiment 1, the present embodiment the difference from embodiment 1 is that:
The self-optimizing control device based on broken operating condition further includes equal；It is crushed set on quartering hammer broken in guide's oil circuit
Broken pilot pressure sensor 5, for detecting the pressure in broken guide's oil circuit, the input terminal of output end and the master controller
It is connected；
The main pump pressure sensor 4, broken pilot pressure sensor 5 and nitrogen pressure sensor 6 are that voltage-type passes
Sensor exports the voltage signal of 0.5-4.5V；
Or the main pump pressure sensor 4, broken pilot pressure sensor 5 and nitrogen pressure sensor 6 are electric current
Type sensor exports the current signal of 4-20mA.
In conclusion the working principle of the self-optimizing control device based on broken operating condition in the present embodiment are as follows:
(1) at least one optimal-search control mode is preset in the host controller, is respectively set under each optimal-search control mode
The broken power mode of at least one, each broken power mode are equipped with corresponding target value；
(2) maximum stream flow and pressure value of quartering hammer are set using electronic monitor 2；
(3) choose a certain optimal-search control mode using electronic monitor 2, self-optimizing control device according to setting rule into
Enter a certain broken power mode；
(4) master controller in self-optimizing control device constantly adjusts the electric current of main pump proportioning valve 7 under scheduled revolving speed
Value is crushed target value corresponding to power mode with this until searching out, wherein the master controller in self-optimizing control device
After detecting the signal from broken pilot pressure sensor 5, then start the signal for acquiring main pump pressure sensor 4；
(5) after searching out target value, after self-optimizing control device operates setting time with the target value, by master controller
Obtain engine speed, the current value of main pump proportioning valve 7 and engine average fuel consumption value in speed probe 9；
(6) change scheduled tachometer value, repeat step (4) and (5), so that self-optimizing control device is under each desired speed
Respectively carry out target value searching, and by master controller record corresponding engine speed, main pump proportioning valve 7 current value and
Engine average fuel consumption value；
(6) the engine average fuel consumption value under more each desired speed, and start engine average fuel consumption value is the smallest
Machine revolving speed, main pump proportioning valve 7 are set as the parameter of the broken power mode, complete the parameter calibration of the broken power mode；
(7) step (3)-(6) are repeated, until completing the parameter calibration of all broken power modes.
Embodiment 3
The present embodiment the difference from embodiment 1 is that:
The self-optimizing control device based on broken operating condition further includes nitrogen pressure sensor 6, and the nitrogen pressure passes
Sensor 6 detects the pressure of nitrogen in the nitrogen chamber of quartering hammer, output end and the master controller for being mounted on quartering hammer
Input terminal be connected.
In conclusion the working principle of the self-optimizing control device based on broken operating condition in the present embodiment are as follows:
(1) at least one optimal-search control mode is preset in the host controller, is respectively set under each optimal-search control mode
The broken power mode of at least one, each broken power mode are equipped with corresponding target value；
(2) maximum stream flow and pressure value of quartering hammer are set using electronic monitor 2；
(3) choose a certain optimal-search control mode using electronic monitor 2, self-optimizing control device according to setting rule into
Enter a certain broken power mode；
(4) master controller in self-optimizing control device constantly adjusts the electric current of main pump proportioning valve 7 under scheduled revolving speed
Value is crushed target value corresponding to power mode with this until searching out, wherein obtains nitrogen pressure using master controller and senses
Nitrogen charging pressure P in device 6n0；When master controller determines the nitrogen charging pressure value Pn0With preset pressure value PnDifference
When more than given threshold, then generates nitrogen chamber low pressure and perhaps superpressure standby signal and propose the nitrogen chamber low pressure or superpressure
Show that signal is transferred to electronic monitor 2, corresponding nitrogen pressure abnormal prompt is done by electronic monitor 2, is adjusted for operator
Corresponding nitrogen charging pressure, when the master controller in self-optimizing control device detects the letter from broken pilot pressure sensor 5
Number, and after nitrogen charging pressure meets the requirement of setting, then start the signal for acquiring main pump pressure sensor 4；When main pump pressure value is super
It crosses setting value and carries out overpressure alarm.
(5) after searching out target value, after self-optimizing control device operates setting time with the target value, by master controller
Obtain engine speed, the current value of main pump proportioning valve 7 and engine average fuel consumption value in speed probe 9；
(6) change scheduled tachometer value, repeat step (4) and (5), so that self-optimizing control device is under each desired speed
Respectively carry out target value searching, and by master controller record corresponding engine speed, main pump proportioning valve 7 current value and
Engine average fuel consumption value；
(6) the engine average fuel consumption value under more each desired speed, and start engine average fuel consumption value is the smallest
Machine revolving speed, main pump proportioning valve 7 are set as the parameter of the broken power mode, complete the parameter calibration of the broken power mode；
(7) step (3)-(6) are repeated, until completing the parameter calibration of all broken power modes.
Embodiment 4
Based on any embodiment in embodiment 1-3, the present embodiment is distinguished with it to be:
The self-optimizing control device based on broken operating condition further includes GPS controller 33, the GPS controller 3 and master
Controller is connected, for carrying out remote data monitoring.
Embodiment 5
A kind of control method of self-optimizing control device based on broken operating condition, including following step are provided in the present embodiment
It is rapid:
Step (1): at least one optimal-search control mode is preset in the host controller, is distinguished under each optimal-search control mode
At least one broken power mode of setting, each broken power mode are equipped with corresponding target value；In a kind of tool of the present embodiment
In body embodiment, specifically:
Two optimal-search control modes, respectively frequency optimal-search control mode and power optimizing are preset in the host controller
Control model；
Three kinds of broken power modes, respectively light-load mode B1, mode standard B2 are respectively provided under each optimal-search control mode
With heavily loaded Mode B 3；
Under frequency optimal-search control mode, the corresponding target value of three kinds of broken power modes is respectively first object frequency values
F1, the second target frequency value f2 and third target frequency value f3；The first object frequency values f1, the second target frequency value f2 and
Third target frequency value f3 represents quartering hammer cycle per second, and the excavator demand of different tonnages is different, generally 2-4
Secondary, the setting of target frequency and type have certain relationship, the relationship between three are as follows: the first object frequency values mesh of f1 < second
Mark frequency values f2 < third target frequency value f3；In a kind of specific embodiment of the embodiment of the present invention, heavily loaded Mode B 3 is corresponding
Third target frequency be f (frequency f value different type of machines is different, is set according to actual conditions)；Mode standard B2 is corresponding
Second target frequency is 80%f (percentage can adjust according to actual needs), the corresponding first object frequency of light-load mode B1
Rate is 60%f (percentage can adjust according to actual needs)；
Under power optimal-search control mode, the corresponding target value of three kinds of broken power modes is respectively first object performance number
W1, the second target power value W2 and third target power value W3；The first object performance number target power value of W1 < second W2 <
Third target power value W3 is separately with the third target power value in a kind of specific embodiment of the embodiment of the present invention
The maximal input W of quartering hammermax；The corresponding third target power of heavily loaded Mode B 3 is that (performance number W different type of machines is different by W
Sample is set according to actual conditions), corresponding second target power of mode standard B2 is that (percentage can be according to reality by 80%W
Demand adjustment), the corresponding first object power of light-load mode B1 is 60%W (percentage can adjust according to actual needs)；
Step (2): using the maximum stream flow Q and pressure value P of electronic monitor setting quartering hammer, for calculating quartering hammer
Maximal input Wmax；
(3) choose a certain optimal-search control mode using electronic monitor, self-optimizing control device according to setting rule into
Enter a certain broken power mode；
After in step (3) using electronic monitor selected frequencies optimal-search control mode, then self-optimizing control device enters
Heavily loaded Mode B 3；The control method of the self-optimizing control device based on broken operating condition is further comprising the steps of:
(4) master controller in self-optimizing control device constantly adjusts the current value of main pump proportioning valve under scheduled revolving speed
Until searching out and target frequency value f3 corresponding to heavily loaded Mode B 3；(5) after searching out target frequency value f3, from optimizing control
After device processed operates setting time with the target frequency value f3, engine speed, master in speed probe are obtained by master controller
Pump the current value and engine average fuel consumption value of proportioning valve；(6) the step of changing scheduled tachometer value, repeating front (4) and
(5), so that self-optimizing control device carries out the searching of target frequency value f3 respectively under each desired speed, and remembered by master controller
Record corresponding engine speed, the current value of main pump proportioning valve and engine average fuel consumption value；(7) under more each desired speed
Engine average fuel consumption value, and by the smallest engine speed of engine average fuel consumption value, main pump proportioning valve be set as heavy duty
The parameter of Mode B 3 completes the parameter calibration of heavily loaded Mode B 3；(8) repeat step (3)-(7), similarly complete light-load mode B1 and
The parameter calibration of mode standard B2；
After choosing power optimal-search control mode using electronic monitor in step (3), then self-optimizing control device enters
Heavily loaded Mode B 3；The control method of the self-optimizing control device based on broken operating condition is further comprising the steps of:
(4) master controller in self-optimizing control device constantly adjusts the current value of main pump proportioning valve under scheduled revolving speed
Until searching out and target power value W3 corresponding to heavily loaded Mode B 3；(5) after searching out target power value W3, from optimizing control
After device processed operates setting time with target power value W3, engine speed, master in speed probe are obtained by master controller
Pump the current value and engine average fuel consumption value of proportioning valve；(6) the step of changing scheduled tachometer value, repeating front, so that
Self-optimizing control device carries out the searching of target power value W3 respectively under each desired speed, and is recorded by master controller corresponding
Engine speed, the current value of main pump proportioning valve and engine average fuel consumption value；(7) engine under more each desired speed
Average fuel consumption value, and the smallest engine speed of engine average fuel consumption value, main pump proportioning valve are set as heavily loaded Mode B 3
Parameter completes the parameter calibration of heavily loaded Mode B 3；(8) step (3)-(7) are repeated, light-load mode B1 and mode standard are similarly completed
The parameter calibration of B2.
Embodiment 6
Based on embodiment 5, in the step (4) in the present embodiment further include:
After the master controller in self-optimizing control device is detected from the signal of broken pilot pressure sensor, then open
The signal of beginning acquisition main pump pressure sensor.
Embodiment 7
Based on embodiment 5, in the step (4) in the present embodiment further include:
The nitrogen charging pressure P in nitrogen pressure sensor is obtained using master controllern0；
When master controller determines the nitrogen charging pressure value Pn0With preset pressure value PnDifference be more than setting threshold
When value, then generates nitrogen chamber low pressure and perhaps superpressure standby signal and transmit the nitrogen chamber low pressure or superpressure standby signal
Electron monitor does corresponding nitrogen pressure abnormal prompt by electronic monitor, adjusts corresponding nitrogen charging pressure for operator
Power, when the master controller in self-optimizing control device detects the signal from broken pilot pressure sensor, and nitrogen charging pressure
After meeting the requirement of setting, then start the signal for acquiring main pump pressure sensor.
Embodiment 8
Based on embodiment 7, the control method of the self-optimizing control device based on broken operating condition in the embodiment of the present invention, also
Include:
The related operating parameter of quartering hammer is sent to GPS controller, the correlation operating parameter packet using master controller
Include: the parameters such as striking frequency of nitrogen charging pressure value and quartering hammer realize the long-range monitoring of data.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of self-optimizing control device based on broken operating condition characterized by comprising
Master controller；
Electronic monitor and engine controller, the electronic monitor and engine controller pass through bus and the master control
Device processed is connected；The electronic monitor is used to carry out the parameter setting and optimal-search control model selection of self-optimizing control device；
The output end of the engine controller with the control terminal of the engine in excavator for being connected；
Speed probe, the speed probe are used to monitor the revolving speed of the engine in excavator, output end and the hair
The input terminal of motivation controller is connected；
Main pump pressure sensor, the main pump pressure sensor are set to the oil outlet of main pump on excavator, detect going out for main pump
Hydraulic fluid port pressure, output end be connected with the input terminal of the master controller；
Main pump proportioning valve, the main pump proportioning valve is connected with the control output end of the master controller, for the liquid with quartering hammer
Press pump is connected, and controls the discharge capacity of hydraulic pump.
2. a kind of self-optimizing control device based on broken operating condition according to claim 1, it is characterised in that: described to be based on
The self-optimizing control device of broken operating condition further includes nitrogen pressure sensor, and the nitrogen pressure sensor is broken for being mounted on
On hammer, the pressure of nitrogen in the nitrogen chamber of quartering hammer is detected, output end is connected with the input terminal of the master controller.
3. a kind of self-optimizing control device based on broken operating condition according to claim 2, it is characterised in that: described to be based on
The self-optimizing control device of broken operating condition further include: it is crushed the broken pilot pressure sensor in guide's oil circuit set on quartering hammer,
For detecting the pressure in broken guide's oil circuit, output end is connected with the input terminal of the master controller；
The main pump pressure sensor, broken pilot pressure sensor and nitrogen pressure sensor are voltage sensor, defeated
The voltage signal of 0.5-4.5V out；
Or the main pump pressure sensor, broken pilot pressure sensor and nitrogen pressure sensor are current-mode sense
Device exports the current signal of 4-20mA.
4. a kind of self-optimizing control device based on broken operating condition according to claim 1, it is characterised in that: described to seek certainly
Excellent control device further includes GPS controller, and the GPS controller is connected with master controller, for carrying out remote data monitoring.
5. a kind of control method of the self-optimizing control device based on broken operating condition characterized by comprising
(1) at least one optimal-search control mode is preset in the host controller, is respectively set at least under each optimal-search control mode
A kind of broken power mode, each broken power mode are equipped with corresponding target value；
(2) using the maximum stream flow Q and pressure value P of electronic monitor setting quartering hammer, the maximum for calculating quartering hammer is defeated
Enter power Wmax；
(3) a certain optimal-search control mode is chosen using electronic monitor, self-optimizing control device enters a certain broken power mode；
(4) master controller in self-optimizing control device constantly adjusted under scheduled revolving speed main pump proportioning valve current value until
It searches out and is crushed target value corresponding to power mode with this；
(5) it after searching out target value, after self-optimizing control device operates setting time with the target value, is obtained by master controller
Engine speed, the current value of main pump proportioning valve and engine average fuel consumption value in speed probe；
(6) change scheduled tachometer value, repeat step (4) and (5), so that self-optimizing control device is distinguished under each desired speed
Carry out target value searching, and by master controller record corresponding engine speed, main pump proportioning valve current value and start
Machine average fuel consumption value；
(6) the engine average fuel consumption value under more each desired speed, and the smallest engine of engine average fuel consumption value is turned
Speed, main pump proportioning valve are set as the parameter of the broken power mode, complete the parameter calibration of the broken power mode；
(7) step (3)-(6) are repeated, until completing the parameter calibration of all broken power modes.
6. the control method of the self-optimizing control device according to claim 5 based on broken operating condition, it is characterised in that: institute
It states and presets at least one optimal-search control mode in the host controller, be respectively set under each optimal-search control mode at least a kind of broken
Broken power mode, each broken power mode are equipped with corresponding target value specifically:
Two optimal-search control modes, respectively frequency optimal-search control mode and power optimal-search control are preset in the host controller
Mode；
Three kinds of broken power modes, respectively light-load mode, mode standard and heavily loaded mode are respectively provided under each optimal-search control mode；
Under frequency optimal-search control mode, the corresponding target value of three kinds of broken power modes is respectively first object frequency values,
Two target frequency values and third target frequency value；
Under power optimal-search control mode, the corresponding target value of three kinds of broken power modes is respectively first object performance number,
Two target power values and third target power value.
7. the control method of the self-optimizing control device according to claim 5 based on broken operating condition, it is characterised in that: institute
State the relationship of first object frequency values, the second target frequency value and third target frequency value are as follows:
First object frequency values < the second target frequency value < third target frequency value；
The first object performance number, the relationship of the second target power value and third target power value are as follows:
First object performance number < the second target power value < third target power value, wherein the third target power value is less than
Or the maximal input W equal to quartering hammermax。
8. the control method of the self-optimizing control device according to claim 5 based on broken operating condition, it is characterised in that: institute
It states in step (4) further include:
After the master controller in self-optimizing control device is detected from the signal of broken pilot pressure sensor, then start to adopt
The signal for collecting main pump pressure sensor, when main pump pressure value is more than that setting value carries out overpressure alarm.
9. the control method of the self-optimizing control device according to claim 8 based on broken operating condition, it is characterised in that: institute
It states in step (4) further include:
The nitrogen charging pressure P in nitrogen pressure sensor is obtained using master controllern0；
When master controller determines the nitrogen charging pressure value Pn0With preset pressure value PnDifference be more than given threshold when,
It then generates nitrogen chamber low pressure and perhaps superpressure standby signal and the nitrogen chamber low pressure or superpressure standby signal is transmitted into electron
Monitor does corresponding nitrogen pressure abnormal prompt by electronic monitor, corresponding nitrogen charging pressure is adjusted for operator, when certainly
Master controller in optimal-search control device detects the signal from broken pilot pressure sensor, and nitrogen charging pressure meets setting
Requirement after, then start acquire main pump pressure sensor signal.
10. the control method of the self-optimizing control device according to claim 5 based on broken operating condition, it is characterised in that:
The control method of the self-optimizing control device based on broken operating condition further include:
(8) the related operating parameter of quartering hammer is sent to GPS controller using master controller.
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