CN101818506A - Limit load regulating method of static pressure driving bulldozer using electronic control motor - Google Patents
Limit load regulating method of static pressure driving bulldozer using electronic control motor Download PDFInfo
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- CN101818506A CN101818506A CN 201010151874 CN201010151874A CN101818506A CN 101818506 A CN101818506 A CN 101818506A CN 201010151874 CN201010151874 CN 201010151874 CN 201010151874 A CN201010151874 A CN 201010151874A CN 101818506 A CN101818506 A CN 101818506A
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Abstract
The invention relates to a limit load regulating method of a static pressure driving bulldozer using an electronic control motor, comprising the following steps of: storing the external characteristic curve data of the electronic control motor in a driving controller; receiving an accelerator position signal, a rotating speed signal and a torque signal of the electronic control motor from a motor controller through a bus; perceiving the working state of a current motor in real time; comparing with the external characteristic curve data of the electronic control motor, which is stored in the driving controller, to obtain the torque difference value of an ideal working point of a current accelerator position; then computing target discharge amount signals of a variable pump and a variable motor which need to be regulated according to a driving oil-pressure signal input in real time and a corresponding algorithm, and then outputting a signal to regulate the discharge amount of the variable pump and the variable motor so that the working point of the electronic control motor is kept within an appropriate range, wherein the driving controller internally sets an efficient working mode and an economic working mode. The invention can accurately control working regions of the motor, prevent the overload and the flameout of the motor, also meet the requirements of different working modes on the working regions of the motor and realize the idealization of the working state of the bulldozer.
Description
Technical field:
The present invention relates to a kind of bulldozer limit load control method, especially a kind of static pressure of electric-control motor that adopts drives bulldozer limit load control method.
Background technology:
The full hydraulic bulldozer of domestic-developed does not adopt electric-control motor as yet at present, signal demand additional sensors such as the rotating speed of collection motor, throttle, and the real-time torque information of not gathering motor; The limit load control method that adopts is how much to judge current payload according to the rotating speed decline of motor, and adjusting pump, motor displacement make the rotating speed of motor descend control within the specific limits, thereby prevents engine overload or flame-out; Also do not set mode of operation at present.
Summary of the invention:
The purpose of this invention is to provide a kind of static pressure of electric-control motor that adopts and drive bulldozer limit load control method, discharge capacity by regulated variable pump and variable displacement motor, accurately control the operation interval of motor, to prevent engine overload and flame-out, satisfy the requirement of different working modes simultaneously, realize the idealized of bulldozer duty the engine operation interval.
The objective of the invention is to realize as follows: electric-control motor link variable pump, variable pump is by oil circuit link variable motor, and electric-control motor is provided with engine controller; Other has driving governor, and driving governor is electrically connected with the Variable Control end of oil pressure sensor, variable pump and the variable displacement motor of joystick, engine controller, driving oil pressure; The external characteristic curve data that have electric-control motor in the driving governor, receive engine throttle position, rotating speed, torque signal by bus from the electric-control motor controller, the duty of the current electric-control motor of real-time perception, compare with the external characteristic curve data of the electric-control motor that has in the driving governor, draw with current throttle position under the moment of torsion difference of ideal operation point; Again according to driving fuel injection pressure signal and the respective algorithms imported in real time, calculate the variable pump and the variable displacement motor target discharge capacity signal of required adjustment, the discharge capacity of output signal regulated variable pump and variable displacement motor remains in the proper range operating point of electric-control motor then.
Establish efficient operation pattern and economic work pattern in the driving governor, near the operating point of motor under the efficient operation pattern is in rated point all the time; Near the operating point of motor under the economic work pattern is in minimum fuel consume point all the time.
The present invention can accurately control the operation interval of motor, prevents engine overload and flame-out, satisfies the requirement of different working modes to the engine operation interval simultaneously, realizes the idealized of bulldozer duty.
Description of drawings:
Fig. 1 is a hardware signal connection diagram of the present invention.
Fig. 2 is a control method step block diagram of the present invention.
The specific embodiment:
With reference to Fig. 1, electric-control motor 3 link variable pumps 4, variable pump 4 is by oil circuit link variable motor 5, and electric-control motor 3 is provided with engine controller 2; Other has driving governor 6, and driving governor 6 is electrically connected with the Variable Control end of oil pressure sensor, variable pump 4 and the variable displacement motor 5 of joystick 1, engine controller 2, driving oil pressure.
With reference to Fig. 2, when starting working, at first driving governor 6 detects joystick 1 control signal, and output initial displacement control signal is given variable pump 4 and variable displacement motor 5, and bulldozer begins walking; Receive the signals such as throttle position, rotating speed, moment of torsion of electric-control motors 3 simultaneously from engine controller 2 by bus, the duty of real-time perception present engine 3, compare with the electric-control motor 3 external characteristic curve data that have in the driving governor 6, draw with current throttle position under the moment of torsion difference of ideal operation point; Again according to driving fuel injection pressure signal and the respective algorithms imported in real time, calculate the variable pump 4 and the variable displacement motor 5 target discharge capacity signals of required adjustment, output signal regulated variable pump 4 and variable displacement motor 5 discharge capacities are in the desirable operation interval operating point of electric-control motor 3 all the time then.Under the efficient operation pattern, can make the operating point of electric-control motor 3 be near the rated point all the time; Under the economic work pattern, the operating point of electric-control motor 3 is near the minimum fuel consume point all the time.
Claims (2)
1. one kind is adopted the static pressure of electric-control motor to drive bulldozer limit load control method, it is characterized in that: electric-control motor (3) link variable pump (4), variable pump (4) is by oil circuit link variable motor (5), and electric-control motor (3) is provided with engine controller (2); Other has driving governor (6), and driving governor (6) is electrically connected with the Variable Control end of oil pressure sensor, variable pump (4) and the variable displacement motor (5) of joystick (1), engine controller (2), driving oil pressure; The external characteristic curve data that have electric-control motor (3) in the driving governor (6), receive electric-control motor (3) throttle position, rotating speed, torque signal by bus from engine controller (2), the duty of the current electric-control motor of real-time perception (3), compare with the external characteristic curve data of the electric-control motor (3) that has in the driving governor (6), draw with current throttle position under the moment of torsion difference of ideal operation point; Again according to driving fuel injection pressure signal and the respective algorithms imported in real time, calculate the variable pump (4) and variable displacement motor (5) the target discharge capacity signal of required adjustment, the discharge capacity of output signal regulated variable pump (4) and variable displacement motor (5) remains in the proper range operating point of electric-control motor (3) then.
2. the static pressure of employing electric-control motor according to claim 1 drives bulldozer limit load control method, it is characterized in that: establish efficient operation pattern and economic work pattern in the driving governor (6), near the operating point of electric-control motor (3) under the efficient operation pattern is in rated point all the time; Near the operating point of electric-control motor (3) under the economic work pattern is in minimum fuel consume point all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101518749A CN101818506B (en) | 2010-04-16 | 2010-04-16 | Limit load regulating method of static pressure driving bulldozer using electronic control motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101518749A CN101818506B (en) | 2010-04-16 | 2010-04-16 | Limit load regulating method of static pressure driving bulldozer using electronic control motor |
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| CN101818506A true CN101818506A (en) | 2010-09-01 |
| CN101818506B CN101818506B (en) | 2011-12-07 |
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| CN2010101518749A Active CN101818506B (en) | 2010-04-16 | 2010-04-16 | Limit load regulating method of static pressure driving bulldozer using electronic control motor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155033A (en) * | 2011-04-01 | 2011-08-17 | 山推工程机械股份有限公司 | Load feedback speed control method of driving system of hydrostatic bulldozer |
| CN102777272A (en) * | 2012-07-23 | 2012-11-14 | 中联重科股份有限公司渭南分公司 | Overload protection control equipment, method and system and engineering machinery |
| WO2013063901A1 (en) * | 2011-11-02 | 2013-05-10 | 湖南三一智能控制设备有限公司 | Action mapping control system and land leveller having same |
| CN103511097A (en) * | 2013-07-17 | 2014-01-15 | 中联重科股份有限公司 | Engine limit load control method and device |
| CN107044147A (en) * | 2016-02-05 | 2017-08-15 | 贵州詹阳动力重工有限公司 | A kind of BBG wheeled hydraulic excavator drive-control system and control method |
| CN112681315A (en) * | 2020-12-17 | 2021-04-20 | 太重（天津）滨海重型机械有限公司 | Hydraulic pile driver control method and system |
| CN114737634A (en) * | 2022-03-25 | 2022-07-12 | 燕山大学 | Method for solving composite action coordination of positive flow excavator |
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2010
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| WO1996017136A1 (en) * | 1994-11-28 | 1996-06-06 | Komatsu Ltd. | Tractive force control apparatus and method |
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| CN2665225Y (en) * | 2003-12-11 | 2004-12-22 | 三一重工股份有限公司 | Walking control apparatus for full-hydraulic bulldozer |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155033A (en) * | 2011-04-01 | 2011-08-17 | 山推工程机械股份有限公司 | Load feedback speed control method of driving system of hydrostatic bulldozer |
| CN102155033B (en) * | 2011-04-01 | 2012-09-05 | 山推工程机械股份有限公司 | Load feedback speed control method of driving system of hydrostatic bulldozer |
| WO2013063901A1 (en) * | 2011-11-02 | 2013-05-10 | 湖南三一智能控制设备有限公司 | Action mapping control system and land leveller having same |
| CN102777272A (en) * | 2012-07-23 | 2012-11-14 | 中联重科股份有限公司渭南分公司 | Overload protection control equipment, method and system and engineering machinery |
| CN103511097A (en) * | 2013-07-17 | 2014-01-15 | 中联重科股份有限公司 | Engine limit load control method and device |
| CN103511097B (en) * | 2013-07-17 | 2017-02-08 | 中联重科股份有限公司 | engine limit load control method and device |
| CN107044147A (en) * | 2016-02-05 | 2017-08-15 | 贵州詹阳动力重工有限公司 | A kind of BBG wheeled hydraulic excavator drive-control system and control method |
| CN107044147B (en) * | 2016-02-05 | 2023-02-14 | 贵州詹阳动力重工有限公司 | Running control system and method for wheel type hydraulic excavator of electronic fuel injection engine |
| CN112681315A (en) * | 2020-12-17 | 2021-04-20 | 太重（天津）滨海重型机械有限公司 | Hydraulic pile driver control method and system |
| CN114737634A (en) * | 2022-03-25 | 2022-07-12 | 燕山大学 | Method for solving composite action coordination of positive flow excavator |
| CN114737634B (en) * | 2022-03-25 | 2023-03-14 | 燕山大学 | Method for solving composite action coordination of positive flow excavator |
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| CN101818506B (en) | 2011-12-07 |
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Effective date of registration: 20210518 Address after: 272600, 50m to the north of Liangzhuang village, Liangshan Town, Liangshan County, Jining City, Shandong Province Patentee after: Shandong Zhuangyu Special Purpose Vehicle Manufacturing Co.,Ltd. Address before: High tech Zone 272073 in Shandong Province, Jining City 327 National Road No. 58 Shantui International Business Park Patentee before: SHANTUI CONSTRUCTION MACHINERY Co.,Ltd. |