CN101818508A - Power control system and method of excavator - Google Patents
Power control system and method of excavator Download PDFInfo
- Publication number
- CN101818508A CN101818508A CN 201010158942 CN201010158942A CN101818508A CN 101818508 A CN101818508 A CN 101818508A CN 201010158942 CN201010158942 CN 201010158942 CN 201010158942 A CN201010158942 A CN 201010158942A CN 101818508 A CN101818508 A CN 101818508A
- Authority
- CN
- China
- Prior art keywords
- main pump
- power
- discharge capacity
- excavator
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a power control system of an excavator. The power control system is characterized by comprising a pressure sensor, a main pump displacement regulator, a revolution speed sensor and a loading calculation module, wherein the pressure sensor and the main pump displacement regulator are arranged on the outlet of a main pump, the revolution speed sensor is arranged on an engine, and the loading calculation module is arranged in the main controller; the pressure sensor, the revolution speed sensor and the main pump displacement regulator are respectively connected with the main controller and output engine revolution speed, throttle position and main pump displacement after being calculated by the loading calculation module to respectively control an actuating mechanism. The method is as follows: low load is a positive flow control mode; high load: a. when engine revolution speed is more than or equal to no-load speed* (1-7%), controlling by a constant power mode; and b. when the engine revolution speed is less than no-load speed* (1-7%), controlling by a limiting power mode. The invention controls by constant power comprehensive limiting power, gives consideration to the power output of a dynamic system on the premise of ensuring excavating force, dynamically adjusts the matching between the practical power of a hydraulic system and requirements, lowers power loss and reduces oil loss.
Description
Technical field
The present invention relates to a kind of excavator control system and method, be specifically related to a kind of system and method for excavator power control.
Background technology
A kind of like this measure that the traditional excavator hydraulic system and the control of motor are adopted: promptly guarantee the power input of hydraulic system, allow the input power of pump meet or exceed the power of actual demand for a long time, guaranteed that like this hydraulic system always works in the easy state of a kind of power, really can satisfy the requirement of work, but bring a large amount of power losses thus.
In order more effectively to utilize the power of motor, usually all adopt permanent power and variable pump, so-called permanent power and variable pump is more popular say be exactly the product of pressure and the flow of pump of pump be a constant, if this numerical value will occur during greater than the power of motor we normal say suppress car.So each designer with regard to its design philosophy, all must be make whole hydraulic system power infinitely near the power of motor and definitely can not be greater than the power of motor.In permanent power control, be divided into two parts: the one, the power control of pump inside: according to the control that the pump output pressure carries out pump delivery, when pressure raise, pump delivery reduced thereupon; When pressure reduced, pump delivery increased thereupon; When if the pressure of system is lower than pilot pressure then introduce pilot pressure its discharge capacity is controlled; The 2nd, external signal is to the control of the power of pump: the external signal of saying here is meant the comprehensive of all information relevant with the power control of pump of pilot operated system, principal pressure system, engine system or the like.
In addition, at present both at home and abroad adopt power limit to control excavator in addition, operation characteristic according to diesel engine, if it runs into the situation that load increases the weight of in running, can reduce rotating speed within the specific limits, improve moment of torsion, increase power output, thereby improve the acting ability automatically, to reach the purpose of permanent power.If but rotating speed descends too much, power output can reduce on the contrary, power output reaches capacity when rotating speed drops to than no-load speed low about 7%, be lower than this limit speed, power output descends suddenly, and pump delivery descends, and causes equipment slow in one's movements, power and response speed descend, the machine operation instability.
Summary of the invention
The object of the invention provides a kind of excavator power control system and method, adopts this control system and method, satisfying under the power demand of hydraulic system, and the cpable of lowering power loss, the utilization rate of raising engine output reduces energy consumption.
For achieving the above object, the technical solution used in the present invention is: a kind of excavator power control system, comprise the pressure sensor and the main pump discharge capacity adjuster that are arranged at the main pump exit, be arranged at the speed probe at motor place and be arranged at the interior load calculation module of excavator master controller, the discharge capacity feedback end of the information output of described pressure sensor, speed probe and main pump discharge capacity adjuster is connected with described master controller respectively, and by exporting behind the described load calculation module arithmetic: (1) engine speed desired value or change amount are to described motor; (2) desired value of engine throttle position or change amount are to described motor; (3) desired value of main pump discharge capacity or change amount are to described main pump discharge capacity adjuster.
In the technique scheme, described main pump discharge capacity adjuster is an electromagnetic proportional valve, and its control end is connected with described master controller.
In the technique scheme, described positive flow control mode is: when executive component is idle, there is not pilot pressure on the oil pump, and swash plate pivot angle minimum, oil pump is only exported a spot of standby flow.Handle guide's handle, then set up in the hydraulic pilot loop with the proportional pressure of handle amount of deflection and control the displacement of change-over valve core and the discharge capacity of main pump.The flow of main pump and the operating rate of consequent executive component and pilot pressure, controlled pressure are in direct ratio.When the excavator underload, adopt positive flow control mode, so-called underload is digger operating device and works under normal pressure, and it is opposite, high load capacity is that equipment arrives the extreme higher position, this moment is because not acting of equipment, so the power of main pump output is all in the overflow and the pressure loss on the way, for avoiding loss, principle of the present invention is that permanent power adjusting has precedence over the power limit adjusting, by positive flow-control performance regulating action, permanent power and power limit participate in computing but do not play a leading role when underload; Permanent power performance leading role during high load capacity, operating limit power carries out auxiliary adjustment on this basis, is: at the initial stage (power output increase) that rotating speed descends, master controller is not intervened; After rotation speed change exceeds 7% (power output begins to reduce), just begin to reduce in proportion the discharge capacity of main pump, stop rotating speed to continue to descend, thereby rotary speed of diesel engine is maintained near the power limit point as far as possible, with this under the prerequisite of the power demand that satisfies hydraulic system, reduce power loss, save oil consumption.
For achieving the above object, the method and technology scheme that the present invention adopts is: a kind of excavator Poewr control method, (1) excavator are when underload, by positive flow control mode control; (2) excavator is when high load capacity: a. engine speed＞=no-load speed * (1-7%): with permanent power mode control, engine speed is descended; B. engine speed＜no-load speed * (1-7%): control in the power limit mode, engine speed stops to descend;
Described permanent power mode is: gather the main pump outlet pressure in real time, calculate the flow of the current action need of excavator according to actual condition, utilize main pump discharge capacity adjuster to carry out the flow adjustment, keep the main pump power output constant;
Described power limit mode is: when recording that the main pump output pressure reaches or surpassing oil pressure relief, guaranteeing that the main pump output pressure is constant under the prerequisite of the required force value of actual condition, control main pump discharge capacity adjuster reduces the main pump discharge capacity, and main pump power is reduced.
In the technique scheme, described main pump discharge capacity adjuster is an electromagnetic proportional valve, in described permanent power mode, according to the relation of electromagnetic proportional valve input current with aperture, calculates the control size of current that need be added on the electromagnetic proportional valve, finishes the adjustment to flow; In described power limit mode, be added to current value on the electromagnetic proportional valve by control, reduce the aperture of this electromagnetic proportional valve, finish minimizing to the main pump discharge capacity.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1. the present invention is by being provided with main pump pressure sensor, speed probe and main pump discharge capacity adjuster, detect the duty of excavator in real time, the parameter input set is formed in load calculation module in the master controller, calculate the desired value or the change amount of real-time working condition required main pump pressure, engine speed and throttle position, hydraulic pressure discharge capacity, adjust the main pump flow by main pump discharge capacity adjuster, make the power demand of excavator hydraulic system and the power output of motor reach real-time coupling, and do not influence the dynamic property and the response speed of complete machine;
2. adopting permanent power adjusting to have precedence over power limit regulates, when underload, bring into play regulating action by positive flow-control, when high load capacity, permanent power performance leading role, operating limit power carries out auxiliary adjustment on this basis, reduce engine speed, improve moment of torsion, increase power output, improve the acting ability, behind (1-7%) of rotating speed less than motor no-load speed, guaranteeing under near the constant prerequisite the required force value of reality of main pump output pressure, reduce the main pump discharge capacity, stop rotating speed to continue to descend, thereby diesel engine speed is maintained near the power limit point as far as possible; Thereby control comprehensive power limit with permanent power and control, guaranteeing to take into account dynamic system power output under the digging force prerequisite, the coupling between the actual power demand of dynamic adjustments hydraulic system reduces power loss;
3. the present invention can differentiate general (low load) operating mode and the high capacity operating mode of excavator, when high load capacity, carry out the power switching controls, avoid hydraulic slip, save the consumption of oil mass, and guarantee soft property of the action of excavator under various operating modes and stationarity.
Description of drawings
Fig. 1 is the control principle framework schematic diagram of the embodiment of the invention one;
Main pump pressure was controlled flow chart when Fig. 2 was the high load capacity of the embodiment of the invention one.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: shown in Fig. 1,2, a kind of excavator power control system, comprise the pressure sensor and the electromagnetic proportional valve that are arranged at the main pump exit, be arranged at the speed probe at motor place and be arranged at the interior load calculation module of excavator master controller, the information output of described pressure sensor, speed probe and the control end of electromagnetic proportional valve are connected with described master controller respectively, and by exporting behind the described load calculation module arithmetic: (1) engine speed desired value or change amount are to described motor; (2) desired value of engine throttle position or change amount are to described motor; (3) desired value of main pump discharge capacity or change amount are to described main pump discharge capacity adjuster; Its control method is: (1) excavator is when underload, by positive flow control mode control; (2) excavator is when high load capacity: a. engine speed＞=no-load speed * (1-7%): with permanent power mode control, engine speed is descended; B. engine speed＜no-load speed * (1-7%): control in the power limit mode, engine speed stops to descend;
Described permanent power mode is: gather the main pump outlet pressure in real time, calculate the flow of the current action need of excavator according to actual condition, according to the relation of electromagnetic proportional valve input current with aperture, calculate the control size of current that need be added on the electromagnetic proportional valve, carry out the flow adjustment, keep the main pump power output constant;
Described power limit mode is: when recording that the main pump output pressure reaches or surpassing oil pressure relief, guaranteeing that the main pump output pressure is constant under the prerequisite of the required force value of actual condition, control is added to the current value on the electromagnetic proportional valve, reduce the aperture of this electromagnetic proportional valve, reduce the main pump discharge capacity, main pump power is reduced.
Described pressure sensor is: according to the magnitude of voltage of a 0.5v-4.5v of pressure output,
Require: (1) precision 1%;
(2) temperature compensation range-30 is ℃-120 ℃;
(3) serviceability temperature-40 ℃～120 ℃.
According to setting rotating speed and user's presetting condition of motor, table look-up and obtain engine output, be i.e. W=P * Q.Consider the efficient of transmission system and main pump, suppose to have in the engine output 70% by hydraulic pump conversion back output, engine output multiply by the power output of 70% acquisition hydraulic pump.The table of comparisons is as follows: with 20 tons of excavator motors is example, and this table checks in for the power contrast that corresponding motor manufacturer provides.
The rotating speed and the power table of comparisons
| Idling lotus rotating speed | ??1650 | ??1750 | ??1830 | ??2000 | ??2250 |
| Power (KW) | ??90 | ??94 | ??99 | ??108 | ??114 |
Work pattern and power train numerical table
| MODE name | The underloading pattern | Mode standard | The heavy duty pattern |
| Coefficient | ??0.8 | ??0.9 | ??1.0 |
Under underload, excavator is according to normal positive flow control mode running, that is to say that the operating rate of the flow of main pump and consequent executive component and pilot pressure, controlled pressure are in direct ratio; Under high load capacity, the power switching controls, (equipment has arrived maximum position to avoid power loss, but operating grip does not unclamp, the pumpage of this moment equals engine output divided by principal pressure, but at this moment executive component does not do work, after main pump pressure reaches overflow valve pressure, overflow and cause damage), reduce engine speed, power output increases, record rotating speed by engine speed sensor, when engine speed＞=no-load speed * (1-7%), gather current main pump outlet pressure by the main pump pressure sensor, in the input load computing module, calculate the actual hydraulic pressure flow of needs according to actual condition,, calculate the control size of current that need be added on the electromagnetic proportional valve again according to the relation of electromagnetic proportional valve input current and valve opening, by the main controller controls electromagnetic proportional valve, control (guaranteeing that the main pump power output is constant) thereby finish according to the permanent power of principal pressure; On this basis, when recording engine speed＜no-load speed * (1-7%), when the main pump pressure sensor output records that pressure reaches or surpasses oil pressure relief, power output begins to reduce, if engine speed descends again, will cause being short of power, thereby be controlled device with the principal pressure this moment, control procedure as shown in Figure 2, guaranteeing that output pressure is under the prerequisite of constant pressure required under the actual condition, adjust the aperture of electromagnetic proportional valve by master controller, reduction main pump discharge capacity as much as possible after principal pressure has downward trend, is adjusted pump governor pressure value and is stopped pressure decline, thereby stop rotating speed to continue to descend, engine speed is maintained near power limit point (just the main pump output pressure is about oil pressure relief) as far as possible.
Claims (4)
1. excavator power control system, it is characterized in that: comprise the pressure sensor and the main pump discharge capacity adjuster that are arranged at the main pump exit, be arranged at the speed probe at motor place and be arranged at the interior load calculation module of excavator master controller, the discharge capacity feedback end of the information output of described pressure sensor, speed probe and main pump discharge capacity adjuster is connected with described master controller respectively, and by exporting behind the described load calculation module arithmetic: (1) engine speed desired value or change amount are to described motor; (2) desired value of engine throttle position or change amount are to described motor; (3) desired value of main pump discharge capacity or change amount are to described main pump discharge capacity adjuster.
2. excavator power control system according to claim 1 is characterized in that: described main pump discharge capacity adjuster is an electromagnetic proportional valve, and its control end is connected with described master controller.
3. excavator Poewr control method is characterized in that: (1) excavator is when underload, by positive flow control mode control; (2) excavator is when high load capacity: a. engine speed＞=no-load speed * (1-7%): with permanent power mode control, engine speed is descended; B. engine speed＜no-load speed * (1-7%): control in the power limit mode, engine speed stops to descend;
Described permanent power mode is: gather the main pump outlet pressure in real time, calculate the flow of the current action need of excavator according to actual condition, utilize main pump discharge capacity adjuster to carry out the flow adjustment, keep the main pump power output constant;
Described power limit mode is: when recording that the main pump output pressure reaches or surpassing oil pressure relief, guaranteeing that the main pump output pressure is constant under the prerequisite of the required force value of actual condition, control main pump discharge capacity adjuster reduces the main pump discharge capacity, and main pump power is reduced.
4. excavator Poewr control method according to claim 3, it is characterized in that: described main pump discharge capacity adjuster is an electromagnetic proportional valve, in described permanent power mode, according to the relation of electromagnetic proportional valve input current with aperture, calculate the control size of current that need be added on the electromagnetic proportional valve, finish adjustment flow; In described power limit mode, be added to current value on the electromagnetic proportional valve by control, reduce the aperture of this electromagnetic proportional valve, finish minimizing to the main pump discharge capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158942 CN101818508A (en) | 2010-04-19 | 2010-04-19 | Power control system and method of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158942 CN101818508A (en) | 2010-04-19 | 2010-04-19 | Power control system and method of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101818508A true CN101818508A (en) | 2010-09-01 |
Family
ID=42653764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010158942 Pending CN101818508A (en) | 2010-04-19 | 2010-04-19 | Power control system and method of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818508A (en) |
Cited By (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251546A (en) * | 2011-06-14 | 2011-11-23 | 三一重机有限公司 | Control method for reducing oil consumption of excavator engine |
| CN102322329A (en) * | 2011-08-17 | 2012-01-18 | 上海三一重机有限公司 | Intelligent control method of engine cooling fan for engineering machinery |
| CN102555805A (en) * | 2011-12-15 | 2012-07-11 | 中联重科股份有限公司 | Motor vehicle, control system of rear vehicle part of motor vehicle and vehicle speed control method |
| CN102758464A (en) * | 2012-07-09 | 2012-10-31 | 徐州徐工挖掘机械有限公司 | Method for controlling positive-flow hydraulic system of excavator |
| CN102776913A (en) * | 2012-07-31 | 2012-11-14 | 龙工（上海）挖掘机制造有限公司 | Power matching method for hydraulic excavator |
| CN102828942A (en) * | 2011-06-16 | 2012-12-19 | 中联重科股份有限公司 | Constant power control device and method of variable pump and concrete pumping device |
| CN102828944A (en) * | 2012-08-23 | 2012-12-19 | 三一重机有限公司 | Engineering machinery, pump flow control system and method thereof |
| CN102877966A (en) * | 2012-10-31 | 2013-01-16 | 三一重机有限公司 | Mechanical engineering control method and engineering machine |
| CN102900122A (en) * | 2012-11-09 | 2013-01-30 | 中外合资沃得重工（中国）有限公司 | Rotary hydraulic system of excavator and control method |
| CN102996536A (en) * | 2012-11-27 | 2013-03-27 | 三一重工股份有限公司 | Load sensitive hydraulic system and power controller thereof as well as crane |
| CN103046609A (en) * | 2012-12-03 | 2013-04-17 | 广西柳工机械股份有限公司 | Plateau self-adaptive excavator control system |
| CN103205992A (en) * | 2013-03-13 | 2013-07-17 | 上海华兴数字科技有限公司 | Component and method for controlling power of excavator |
| CN103452162A (en) * | 2013-08-19 | 2013-12-18 | 山重建机有限公司 | Negative-flow energy saving device of hydraulic excavator |
| CN103590442A (en) * | 2013-10-29 | 2014-02-19 | 中外合资沃得重工（中国）有限公司 | Power matching control device and power matching control method for small excavator |
| CN103615029A (en) * | 2013-11-01 | 2014-03-05 | 中外合资沃得重工（中国）有限公司 | Power control system and method of negative flow hydraulic pump of middle-large size hydraulic excavator |
| CN103925091A (en) * | 2014-04-09 | 2014-07-16 | 三一汽车起重机械有限公司 | Dynamic power matching method, dynamic power matching system and engineering machinery |
| CN104005446A (en) * | 2014-04-01 | 2014-08-27 | 上海海希工业通讯股份有限公司 | Positive flow control method and system of excavator and excavator |
| CN104033260A (en) * | 2014-06-06 | 2014-09-10 | 上海中联重科桩工机械有限公司 | Engine speed control method, device and system and engineering machinery |
| CN104594877A (en) * | 2015-01-22 | 2015-05-06 | 无锡市钻通工程机械有限公司 | Rotary overspeed-preventing electronic control system of trenchless pipe-laying drilling machine |
| CN105155610A (en) * | 2015-08-27 | 2015-12-16 | 中国航空工业集团公司西安飞行自动控制研究所 | Power protection control method for hydraulic excavator |
| CN105297821A (en) * | 2015-12-02 | 2016-02-03 | 上海华兴数字科技有限公司 | Control method and control system of excavator |
| CN105369817A (en) * | 2014-08-06 | 2016-03-02 | 中联重科股份有限公司 | Milling control processing method, device and system for slot milling machine and slot milling machine |
| CN104033260B (en) * | 2014-06-06 | 2016-11-30 | 上海中联重科桩工机械有限公司 | Engine speed control method, device and system and engineering machinery |
| CN108316371A (en) * | 2018-02-05 | 2018-07-24 | 罗弟容 | Multifunctional excavator |
| CN108331064A (en) * | 2018-02-05 | 2018-07-27 | 徐州徐工挖掘机械有限公司 | A kind of hydraulic crawler excavator loaded self-adaptive intelligent controlling device and control system |
| CN108603359A (en) * | 2016-01-28 | 2018-09-28 | 住友建机株式会社 | Excavator |
| CN108824517A (en) * | 2018-06-28 | 2018-11-16 | 山推工程机械股份有限公司 | A kind of autocontrol method and bull-dozer of hydrostatic driving vehicle accelerator |
| CN109778933A (en) * | 2017-11-13 | 2019-05-21 | 柳工常州机械有限公司 | A kind of bull-dozer double power curve control methods of engine |
| CN109778938A (en) * | 2019-01-22 | 2019-05-21 | 徐州徐工挖掘机械有限公司 | One kind is based on broken operating condition excavator adaptive power control device and method |
| CN110258709A (en) * | 2019-07-08 | 2019-09-20 | 山重建机有限公司 | A kind of method of excavator Auto-matching difference operating condition |
| CN110295635A (en) * | 2019-07-03 | 2019-10-01 | 山推工程机械股份有限公司 | A kind of Electric bulldozer system and its adaptive power control method |
| CN110307096A (en) * | 2019-06-28 | 2019-10-08 | 三一汽车制造有限公司 | The control method of dynamical system, the control system of dynamical system and engineering machinery |
| CN110905672A (en) * | 2019-11-28 | 2020-03-24 | 徐州徐工基础工程机械有限公司 | Real-time power matching method of hydraulic system adapting to different rotating speeds of engine |
| CN111486087A (en) * | 2020-04-24 | 2020-08-04 | 湖南爱力液压密封技术有限公司 | Constant power control system for oil pump of hydraulic system |
| CN111549848A (en) * | 2020-05-18 | 2020-08-18 | 三一重机有限公司 | Hydraulic system and control method of backhoe loader and backhoe loader |
| CN111836935A (en) * | 2018-03-12 | 2020-10-27 | 斗山英维高株式会社 | Electronic hydraulic control device and method for construction machinery |
| CN111868336A (en) * | 2018-03-30 | 2020-10-30 | 住友重机械工业株式会社 | Construction machine and information processing device |
| CN112796365A (en) * | 2020-12-23 | 2021-05-14 | 中联重科土方机械有限公司 | Preloading method and device of excavator and excavator |
| CN112901358A (en) * | 2021-02-08 | 2021-06-04 | 徐州徐工矿业机械有限公司 | Engine pre-fuel injection torque control system and method based on load identification |
| CN113202952A (en) * | 2021-05-19 | 2021-08-03 | 徐州徐工挖掘机械有限公司 | Control method and system for bucket rod regeneration valve of excavator |
| CN113357028A (en) * | 2021-06-29 | 2021-09-07 | 上海华兴数字科技有限公司 | Excavator control method and device, electronic equipment and storage medium |
| CN113833051A (en) * | 2021-10-29 | 2021-12-24 | 徐州徐工矿业机械有限公司 | Hydraulic excavator rotating speed adjusting and testing system and method based on engine ADTC (active control system) active control function |
| CN114045897A (en) * | 2021-11-17 | 2022-02-15 | 江苏徐工工程机械研究院有限公司 | Load sudden-change speed-dropping control method and system for positive flow system and excavator |
| CN114263541A (en) * | 2021-12-29 | 2022-04-01 | 柳州柳工挖掘机有限公司 | Excavator control method and excavator |
| CN114384957A (en) * | 2022-01-17 | 2022-04-22 | 雷沃工程机械集团有限公司 | Intelligent control system and method for crushing working condition of excavator |
| CN114396375A (en) * | 2022-02-22 | 2022-04-26 | 贵州詹阳动力重工有限公司 | Limit power control method of electric engineering machinery |
| CN114458461A (en) * | 2022-03-08 | 2022-05-10 | 雷沃工程机械集团有限公司 | Automatic identification method for engine power of excavator |
| CN114458467A (en) * | 2021-12-24 | 2022-05-10 | 中联重科土方机械有限公司 | Control method, device and system, engineering machinery vehicle and machine readable storage medium |
| CN114578785A (en) * | 2022-01-28 | 2022-06-03 | 徐州徐工挖掘机械有限公司 | Power limit control method and system for electric engineering machinery |
| CN115369937A (en) * | 2022-08-26 | 2022-11-22 | 中联重科土方机械有限公司 | Positive flow excavator and control method, control device and controller thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020073699A1 (en) * | 2000-10-03 | 2002-06-20 | Satoru Nishimura | Speed control apparatus of working vehicle and speed control method thereof |
| WO2006129399A1 (en) * | 2005-06-03 | 2006-12-07 | Komatsu Ltd. | Work machine |
| CN201125402Y (en) * | 2007-10-11 | 2008-10-01 | 天津工程机械研究院 | Automatic control operation mode loading apparatus |
| CN201301467Y (en) * | 2008-11-13 | 2009-09-02 | 贵州詹阳动力重工有限公司 | Integrated hydraulic and electronic control system for hydraulic excavator |
-
2010
- 2010-04-19 CN CN 201010158942 patent/CN101818508A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020073699A1 (en) * | 2000-10-03 | 2002-06-20 | Satoru Nishimura | Speed control apparatus of working vehicle and speed control method thereof |
| WO2006129399A1 (en) * | 2005-06-03 | 2006-12-07 | Komatsu Ltd. | Work machine |
| CN201125402Y (en) * | 2007-10-11 | 2008-10-01 | 天津工程机械研究院 | Automatic control operation mode loading apparatus |
| CN201301467Y (en) * | 2008-11-13 | 2009-09-02 | 贵州詹阳动力重工有限公司 | Integrated hydraulic and electronic control system for hydraulic excavator |
Non-Patent Citations (1)
| Title |
|---|
| 《工程科技Ⅱ辑》 20060515 吴晓健 液压挖掘机功率控制节能技术研究 3-4 , 第5期 2 * |
Cited By (79)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171415A1 (en) * | 2011-06-14 | 2012-12-20 | 湖南三一智能控制设备有限公司 | Control method for reducing oil consumption of engine of excavator |
| CN102251546A (en) * | 2011-06-14 | 2011-11-23 | 三一重机有限公司 | Control method for reducing oil consumption of excavator engine |
| CN102251546B (en) * | 2011-06-14 | 2013-04-24 | 三一重机有限公司 | Control method for reducing oil consumption of excavator engine |
| CN102828942A (en) * | 2011-06-16 | 2012-12-19 | 中联重科股份有限公司 | Constant power control device and method of variable pump and concrete pumping device |
| CN102828942B (en) * | 2011-06-16 | 2015-11-18 | 中联重科股份有限公司 | Constant power control device and method of variable pump and concrete pumping device |
| CN102322329B (en) * | 2011-08-17 | 2013-04-03 | 上海三一重机有限公司 | Intelligent control method of engine cooling fan for engineering machinery |
| CN102322329A (en) * | 2011-08-17 | 2012-01-18 | 上海三一重机有限公司 | Intelligent control method of engine cooling fan for engineering machinery |
| CN102555805A (en) * | 2011-12-15 | 2012-07-11 | 中联重科股份有限公司 | Motor vehicle, control system of rear vehicle part of motor vehicle and vehicle speed control method |
| CN102758464A (en) * | 2012-07-09 | 2012-10-31 | 徐州徐工挖掘机械有限公司 | Method for controlling positive-flow hydraulic system of excavator |
| CN102758464B (en) * | 2012-07-09 | 2014-11-12 | 徐州徐工挖掘机械有限公司 | Method for controlling positive-flow hydraulic system of excavator |
| CN102776913A (en) * | 2012-07-31 | 2012-11-14 | 龙工（上海）挖掘机制造有限公司 | Power matching method for hydraulic excavator |
| CN102828944A (en) * | 2012-08-23 | 2012-12-19 | 三一重机有限公司 | Engineering machinery, pump flow control system and method thereof |
| CN102828944B (en) * | 2012-08-23 | 2015-08-12 | 三一重机有限公司 | Engineering machinery and pump flow control system thereof and method |
| CN102877966B (en) * | 2012-10-31 | 2017-03-01 | 三一重机有限公司 | A kind of engineering machinery control method and engineering machinery |
| CN102877966A (en) * | 2012-10-31 | 2013-01-16 | 三一重机有限公司 | Mechanical engineering control method and engineering machine |
| CN102900122A (en) * | 2012-11-09 | 2013-01-30 | 中外合资沃得重工（中国）有限公司 | Rotary hydraulic system of excavator and control method |
| CN102996536B (en) * | 2012-11-27 | 2015-04-22 | 三一重工股份有限公司 | Load sensitive hydraulic system and power controller thereof as well as crane |
| CN102996536A (en) * | 2012-11-27 | 2013-03-27 | 三一重工股份有限公司 | Load sensitive hydraulic system and power controller thereof as well as crane |
| CN103046609A (en) * | 2012-12-03 | 2013-04-17 | 广西柳工机械股份有限公司 | Plateau self-adaptive excavator control system |
| CN103205992A (en) * | 2013-03-13 | 2013-07-17 | 上海华兴数字科技有限公司 | Component and method for controlling power of excavator |
| CN103205992B (en) * | 2013-03-13 | 2015-11-25 | 上海华兴数字科技有限公司 | A kind of excavator Power control component and method |
| CN103452162A (en) * | 2013-08-19 | 2013-12-18 | 山重建机有限公司 | Negative-flow energy saving device of hydraulic excavator |
| CN103590442A (en) * | 2013-10-29 | 2014-02-19 | 中外合资沃得重工（中国）有限公司 | Power matching control device and power matching control method for small excavator |
| CN103615029A (en) * | 2013-11-01 | 2014-03-05 | 中外合资沃得重工（中国）有限公司 | Power control system and method of negative flow hydraulic pump of middle-large size hydraulic excavator |
| CN104005446A (en) * | 2014-04-01 | 2014-08-27 | 上海海希工业通讯股份有限公司 | Positive flow control method and system of excavator and excavator |
| CN104005446B (en) * | 2014-04-01 | 2016-03-16 | 上海海希工业通讯股份有限公司 | The positive flow control method of excavator and system and excavator |
| CN103925091A (en) * | 2014-04-09 | 2014-07-16 | 三一汽车起重机械有限公司 | Dynamic power matching method, dynamic power matching system and engineering machinery |
| CN103925091B (en) * | 2014-04-09 | 2016-09-07 | 三一汽车起重机械有限公司 | Dynamic power matching process |
| CN104033260B (en) * | 2014-06-06 | 2016-11-30 | 上海中联重科桩工机械有限公司 | Engine speed control method, device and system and engineering machinery |
| CN104033260A (en) * | 2014-06-06 | 2014-09-10 | 上海中联重科桩工机械有限公司 | Engine speed control method, device and system and engineering machinery |
| CN105369817A (en) * | 2014-08-06 | 2016-03-02 | 中联重科股份有限公司 | Milling control processing method, device and system for slot milling machine and slot milling machine |
| CN105369817B (en) * | 2014-08-06 | 2018-06-29 | 中联重科股份有限公司 | Milling control processing method, device and system for slot milling machine and slot milling machine |
| CN104594877A (en) * | 2015-01-22 | 2015-05-06 | 无锡市钻通工程机械有限公司 | Rotary overspeed-preventing electronic control system of trenchless pipe-laying drilling machine |
| CN105155610A (en) * | 2015-08-27 | 2015-12-16 | 中国航空工业集团公司西安飞行自动控制研究所 | Power protection control method for hydraulic excavator |
| CN105155610B (en) * | 2015-08-27 | 2017-08-29 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of hydraulic excavating acc power protects control method |
| CN105297821A (en) * | 2015-12-02 | 2016-02-03 | 上海华兴数字科技有限公司 | Control method and control system of excavator |
| CN108603359A (en) * | 2016-01-28 | 2018-09-28 | 住友建机株式会社 | Excavator |
| CN109778933A (en) * | 2017-11-13 | 2019-05-21 | 柳工常州机械有限公司 | A kind of bull-dozer double power curve control methods of engine |
| CN108331064A (en) * | 2018-02-05 | 2018-07-27 | 徐州徐工挖掘机械有限公司 | A kind of hydraulic crawler excavator loaded self-adaptive intelligent controlling device and control system |
| CN108331064B (en) * | 2018-02-05 | 2020-09-08 | 徐州徐工挖掘机械有限公司 | Load self-adaptive intelligent control device and control system of hydraulic excavator |
| CN108316371A (en) * | 2018-02-05 | 2018-07-24 | 罗弟容 | Multifunctional excavator |
| CN111836935B (en) * | 2018-03-12 | 2022-11-01 | 斗山英维高株式会社 | Electronic hydraulic control device and method for engineering machinery |
| CN111836935A (en) * | 2018-03-12 | 2020-10-27 | 斗山英维高株式会社 | Electronic hydraulic control device and method for construction machinery |
| CN111868336B (en) * | 2018-03-30 | 2022-08-16 | 住友重机械工业株式会社 | Construction machine and information processing device |
| CN111868336A (en) * | 2018-03-30 | 2020-10-30 | 住友重机械工业株式会社 | Construction machine and information processing device |
| CN108824517A (en) * | 2018-06-28 | 2018-11-16 | 山推工程机械股份有限公司 | A kind of autocontrol method and bull-dozer of hydrostatic driving vehicle accelerator |
| CN108824517B (en) * | 2018-06-28 | 2020-11-06 | 山推工程机械股份有限公司 | Automatic control method for static pressure driven vehicle accelerator and bulldozer |
| CN109778938A (en) * | 2019-01-22 | 2019-05-21 | 徐州徐工挖掘机械有限公司 | One kind is based on broken operating condition excavator adaptive power control device and method |
| CN109778938B (en) * | 2019-01-22 | 2021-03-16 | 徐州徐工挖掘机械有限公司 | Excavator power self-adaptive control device and method based on crushing working condition |
| CN110307096A (en) * | 2019-06-28 | 2019-10-08 | 三一汽车制造有限公司 | The control method of dynamical system, the control system of dynamical system and engineering machinery |
| CN110295635B (en) * | 2019-07-03 | 2021-09-10 | 山推工程机械股份有限公司 | Electric bulldozer system and power self-adaptive control method thereof |
| CN110295635A (en) * | 2019-07-03 | 2019-10-01 | 山推工程机械股份有限公司 | A kind of Electric bulldozer system and its adaptive power control method |
| CN110258709A (en) * | 2019-07-08 | 2019-09-20 | 山重建机有限公司 | A kind of method of excavator Auto-matching difference operating condition |
| CN110258709B (en) * | 2019-07-08 | 2021-07-30 | 山重建机有限公司 | Method for automatically matching different working conditions of excavator |
| CN110905672B (en) * | 2019-11-28 | 2022-04-01 | 徐州徐工基础工程机械有限公司 | Real-time power matching method of hydraulic system adapting to different rotating speeds of engine |
| CN110905672A (en) * | 2019-11-28 | 2020-03-24 | 徐州徐工基础工程机械有限公司 | Real-time power matching method of hydraulic system adapting to different rotating speeds of engine |
| CN111486087A (en) * | 2020-04-24 | 2020-08-04 | 湖南爱力液压密封技术有限公司 | Constant power control system for oil pump of hydraulic system |
| CN111549848A (en) * | 2020-05-18 | 2020-08-18 | 三一重机有限公司 | Hydraulic system and control method of backhoe loader and backhoe loader |
| CN112796365B (en) * | 2020-12-23 | 2022-03-04 | 中联重科土方机械有限公司 | Preloading method and device of excavator and excavator |
| CN112796365A (en) * | 2020-12-23 | 2021-05-14 | 中联重科土方机械有限公司 | Preloading method and device of excavator and excavator |
| CN112901358A (en) * | 2021-02-08 | 2021-06-04 | 徐州徐工矿业机械有限公司 | Engine pre-fuel injection torque control system and method based on load identification |
| CN113202952A (en) * | 2021-05-19 | 2021-08-03 | 徐州徐工挖掘机械有限公司 | Control method and system for bucket rod regeneration valve of excavator |
| CN113202952B (en) * | 2021-05-19 | 2023-02-17 | 徐州徐工挖掘机械有限公司 | Control method and system for bucket rod regeneration valve of excavator |
| CN113357028A (en) * | 2021-06-29 | 2021-09-07 | 上海华兴数字科技有限公司 | Excavator control method and device, electronic equipment and storage medium |
| CN113357028B (en) * | 2021-06-29 | 2022-09-27 | 上海华兴数字科技有限公司 | Excavator control method and device, electronic equipment and storage medium |
| CN113833051B (en) * | 2021-10-29 | 2023-08-29 | 徐州徐工矿业机械有限公司 | Hydraulic excavator rotating speed adjusting and testing system and method based on ADTC active control function of engine |
| CN113833051A (en) * | 2021-10-29 | 2021-12-24 | 徐州徐工矿业机械有限公司 | Hydraulic excavator rotating speed adjusting and testing system and method based on engine ADTC (active control system) active control function |
| CN114045897A (en) * | 2021-11-17 | 2022-02-15 | 江苏徐工工程机械研究院有限公司 | Load sudden-change speed-dropping control method and system for positive flow system and excavator |
| CN114458467A (en) * | 2021-12-24 | 2022-05-10 | 中联重科土方机械有限公司 | Control method, device and system, engineering machinery vehicle and machine readable storage medium |
| CN114263541A (en) * | 2021-12-29 | 2022-04-01 | 柳州柳工挖掘机有限公司 | Excavator control method and excavator |
| CN114263541B (en) * | 2021-12-29 | 2022-12-13 | 柳州柳工挖掘机有限公司 | Excavator control method and excavator |
| CN114384957A (en) * | 2022-01-17 | 2022-04-22 | 雷沃工程机械集团有限公司 | Intelligent control system and method for crushing working condition of excavator |
| CN114578785A (en) * | 2022-01-28 | 2022-06-03 | 徐州徐工挖掘机械有限公司 | Power limit control method and system for electric engineering machinery |
| CN114578785B (en) * | 2022-01-28 | 2024-03-01 | 徐州徐工挖掘机械有限公司 | Power limiting control method and system for electric engineering machinery |
| CN114396375A (en) * | 2022-02-22 | 2022-04-26 | 贵州詹阳动力重工有限公司 | Limit power control method of electric engineering machinery |
| CN114396375B (en) * | 2022-02-22 | 2023-12-22 | 贵州詹阳动力重工有限公司 | Limiting power control method of electric chemical engineering machinery |
| CN114458461A (en) * | 2022-03-08 | 2022-05-10 | 雷沃工程机械集团有限公司 | Automatic identification method for engine power of excavator |
| CN115369937A (en) * | 2022-08-26 | 2022-11-22 | 中联重科土方机械有限公司 | Positive flow excavator and control method, control device and controller thereof |
| CN115369937B (en) * | 2022-08-26 | 2024-04-12 | 中联重科土方机械有限公司 | Positive flow excavator, control method, control device and controller thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101818508A (en) | Power control system and method of excavator | |
| CN102296665B (en) | Excavator hydraulic system carrying load sensing main valve and positive flow pump | |
| CN100590307C (en) | Power controller and method for hydraulic power system | |
| CN108204285B (en) | Multi-curve power matching energy-saving control system and method for hydraulic engineering machinery | |
| CN108331064B (en) | Load self-adaptive intelligent control device and control system of hydraulic excavator | |
| CN201284201Y (en) | Hoist hydraulic control system of crane | |
| CN101761105B (en) | Power matching method of hydraulic excavator | |
| CN102030266B (en) | Crane and hydraulic control system thereof | |
| CN103061907B (en) | Engine control device and method for hydraulic system of fixed displacement pump | |
| CN201202622Y (en) | Proportional variable plunger pump | |
| CN102996536A (en) | Load sensitive hydraulic system and power controller thereof as well as crane | |
| CN103062026A (en) | Method and device for controlling pump output of concrete pumping machinery | |
| CN101768990A (en) | Hydraulic constant power control device for excavator | |
| CN104326365B (en) | Energy-saving control method and system for crane | |
| CN201144902Y (en) | Hydraulic system for development machine | |
| CN102864810B (en) | A kind of engineering machinery hydraulic energy saver and control method and excavator | |
| CN205001294U (en) | Energy -concerving and environment -protective type hydraulic control system | |
| CN201914850U (en) | Crane and hydraulic control system thereof | |
| CN111059091A (en) | Load-sensitive oil supply module, load-sensitive system and control method thereof | |
| WO2022206957A1 (en) | Hydraulic active suspension flow control system | |
| CN212358446U (en) | Multifunctional accessory control management system of excavator | |
| CN205937322U (en) | Press and hydraulic pressure closed loop control system thereof | |
| CN100588835C (en) | Double pumps displacement water turbine speed regulating means | |
| CN111706563B (en) | Three-way speed regulating valve based on hydraulic motor-generator pressure compensator | |
| CN201169793Y (en) | Loader engine and work pump combined control apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100901 |