CN107061419B - A kind of hydraulic system power matching control apparatus and method - Google Patents
A kind of hydraulic system power matching control apparatus and method Download PDFInfo
- Publication number
- CN107061419B CN107061419B CN201710169684.1A CN201710169684A CN107061419B CN 107061419 B CN107061419 B CN 107061419B CN 201710169684 A CN201710169684 A CN 201710169684A CN 107061419 B CN107061419 B CN 107061419B
- Authority
- CN
- China
- Prior art keywords
- pump
- stirs
- row
- hydraulic system
- engine
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 101
- 239000000523 sample Substances 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
- B28C5/421—Drives
- B28C5/4213—Hydraulic drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
- B28C5/422—Controlling or measuring devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
A kind of hydraulic system power matching control apparatus and method belong to power match control technology field, it is therefore intended that it is poor to solve the problems, such as the prior art there are power match.The present invention includes engine；The enclosed vibration hydraulic system connected with engine, traveling pump and running motor including passing through piping connection, traveling pump are rigidly connected by stiff shaft and engine, the walking mechanism rigid connection of running motor and mixer truck；The enclosed stirring hydraulic system connected with engine, mixing pump and stirring motor including passing through piping connection, mixing pump are rigidly connected by stiff shaft and engine, the stirring system rigid connection of stirring motor and mixer truck；First pressure sensor in enclosed stirring hydraulic system is set；Second pressure sensor in enclosed vibration hydraulic system is set；The speed probe connected with engine；And the microprocessor being electrically connected respectively with first pressure sensor, second pressure sensor, speed probe, traveling pump and mixing pump.
Description
Technical field
The invention belongs to power match control technology fields, and in particular to a kind of hydraulic system power matching control apparatus and
Method.
Background technique
In current engineering construction, in order to reduce the amount of storage of construction material at the construction field (site), need largely to build
Build the place that material is remotely from construction site.Concrete mixer truck may be implemented during transportation to stir construction material
Mix operation, thus concrete mixer truck using more and more extensive.
In concrete mixer truck traveling process, engine will drive simultaneously walking mechanism and stirring system to work,
In the prior art, during hydraulic system and the power match of engine, often only consider of traveling pump and hydraulic system
Match, and be rough deduction a part for the energy consumption of equipment, is resulted in this way when equipment is not completely negative
Energy dissipation when lotus works.So that hoofing part power significantly reduces, vehicle walking characteristics can play well.
Summary of the invention
It is an object of the invention to propose a kind of hydraulic system power matching control apparatus and method, solves the prior art and deposit
In the problem of power match difference, road holding is enable to play well.
To achieve the above object, a kind of hydraulic system power matching control apparatus of the invention includes:
Engine；
The enclosed vibration hydraulic system connected with engine, the enclosed vibration hydraulic system includes by piping connection
Traveling pump and running motor, the traveling pump are rigidly connected by stiff shaft and engine, the running motor and mixer truck
Walking mechanism rigid connection；
The enclosed stirring hydraulic system connected with engine, the enclosed stirring hydraulic system includes by piping connection
Mixing pump and stirring motor, the mixing pump are rigidly connected by stiff shaft and engine, the stirring motor and mixer truck
Stirring system rigid connection；
First pressure sensor in the enclosed stirring hydraulic system is set；
Second pressure sensor in the enclosed vibration hydraulic system is set；
The speed probe connected with the engine；
And it is electrically connected respectively with first pressure sensor, second pressure sensor, speed probe, traveling pump and mixing pump
The microprocessor connect.
The traveling pump is electric proportional control pump, and the running motor is automatically controlled dibit motor；The mixing pump is electric ratio
Example control pump, the stirring motor are fixed displacement motor.
A kind of control method based on hydraulic system power matching control apparatus the following steps are included:
Step 1: microprocessor controls the input current of mixing pump according to electric-hydraulic proportion pwm signal, and passes through microprocessor
Read the control electric current I of mixing pumpIt stirs, microprocessor according to formula (one) be calculated stirring pumpage qIt stirs:
qIt stirs=K × IIt stirs(1)
Wherein, K is mixing pump current gear signal；
Step 2: first pressure sensor acquires the system pressure P of enclosed stirring hydraulic system, and P is transferred to micro- place
It manages in device；
Step 3: the system pressure P of enclosed stirring hydraulic system is carried out low-pass filtering treatment by microprocessor, is stablized
Pressure value PIt stirs；
Step 4: the stirring pumpage q obtained according to step 1It stirsWith pressure value P obtained in step 3It stirsPass through formula
(2) torque T needed for stirring pump work is calculatedIt stirs:
TIt stirs=PIt stirs×qIt stirs(2)；
Step 5: the output revolving speed n of speed probe acquisition engineHair, and by nHairIt is transferred in microprocessor；
Step 6: microprocessor is by the output revolving speed n of the engine acquired in step 5HairIt is defeated in advance with microprocessor internal
The revolving speed entered-torque meter control, obtains the corresponding output torque T of engineHair；
Step 7: the engine output torque T that microprocessor will obtain in step 6HairWith the mixing pump obtained in step 4
Torque T needed for workIt stirsIt makes the difference to obtain engine residual torque, and using this torque as the input torque T of traveling pumpRow；
Step 8: the system pressure of second pressure sensor acquisition enclosed vibration hydraulic system is transmitted in microprocessor,
And it handles and obtains the system pressure P of stable enclosed vibration hydraulic systemRow；
Step 9: microprocessor is according to the system pressure P of the enclosed vibration hydraulic system obtained in step 8RowAnd step 7
The input torque T of the traveling pump of middle acquisitionRowThe discharge capacity q of traveling pump is calculated by formula (three)Row:
qRow=TRow/PRow(3)；
Step 10: according to the discharge capacity q of the traveling pump obtained in step 9RowWith system pressure PRowIt is calculated by formula (four)
To the input current I of traveling pumpRow:
Wherein: a is the current minimum to work,
The current maxima that b works when being pressure minimum,
C is the current maxima to work；
qmaxFor the maximum pump discharge of pump；
ΔpmaxFor system maximum pressure；
Step 11: microprocessor is by the input current I of the traveling pump obtained in step 10RowIt sends traveling pump to, walks
Pump finds best operating point according to existing control electric current and system feedback pressure.
The traveling pump and mixing pump are electric proportional control pump.
The invention has the benefit that a kind of hydraulic system power matching control apparatus of the invention and method engine with
And motor, mixing pump, two sets of closed type hydraulic systems of stirring motor composition, pressure sensor, engine turn are driven in traveling pump, walking
Fast sensor, microprocessor.Microprocessor calculates stirring system at this time according to the mixing pump input current of electric proportional control
Discharge capacity, the system pressure signal of pressure sensor acquisition stirring closed type hydraulic system, sends microprocessor to, microprocessor is pressure
The pressure that force snesor transmits is filtered, and further according to the control electric current of current mixing pump, calculates stirring system
Required motor torque.Remaining torque under this engine speed state is used to walk in Closed Hydraulic by microprocessor, micro-
Processor is according to the state of engine and the working condition of stirring hydraulic system.Calculate current time it is optimal export electric current to
Traveling pump.For vibration hydraulic system using the traveling pump of NFPE (electric ratio is without feedback) control, the pump of this control form can
According to the adaptive preferable operating point of the system pressure of existing electric current and internal feedback.In this way, microprocessor is with regard to only
It needs to give walking one electric current relevant with engine speed of dynamic pump, such driver only need to manipulate gas pedal just can be well
Vehicle is controlled, while traveling pump can be allowed to make full use of engine residual power.The internal algorithm of the application is stirring system
Energy utilization be weighted in the middle of the power match of running gear, engine power is fully used.And it goes
The control for walking pump is thus vehicle to be made correctly according to driver using speed sensitive control relevant with engine speed
It is intended to traveling, and running gear can be in optimal working condition always.To reach energy-efficient effect.The control method
So that engine power is sufficiently stirred hydraulic system always and vibration hydraulic system utilizes.Automatically controlled and Mechanical course combines,
So that the fast response time of hydraulic system, control precision is high.Also vehicle hydraulic system reliability of operation and peace are substantially increased
Full property and capacity usage ratio.The present invention can distribute engine power well compared with the existing technology, so that pump is located always
In optimum Working, this control method is enable to respond quickly signal input, accurately controls the state of pump, engine power is allowed to obtain
While to make full use of, the properties of vehicle fully play out.
Detailed description of the invention
Fig. 1 is a kind of hydraulic system power matching control apparatus structural block diagram of the invention；
Fig. 2 is a kind of hydraulic system power matching control apparatus structural schematic diagram of the invention；
Fig. 3 is a kind of flow chart of hydraulic system power match control method of the invention；
Wherein: 1, walking mechanism, 2, running motor, 3, traveling pump, 4, mixing pump, 5, stirring motor, 6, stirring system, 7,
First pressure sensor, 8, speed probe, 9, microprocessor, 10, second pressure sensor, 11, engine.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.
Referring to attached drawing 1 and attached drawing 2, a kind of hydraulic system power matching control apparatus of the invention includes:
Engine 11；
The enclosed vibration hydraulic system connected with engine 11, the enclosed vibration hydraulic system include passing through piping connection
Traveling pump 3 and running motor 2, the traveling pump 3 is rigidly connected by stiff shaft and engine 11, and the running motor 2 is pacified
On the gearbox of the walking mechanism 1 of mixer truck；
Hydraulic system is stirred with the enclosed that engine 11 connects, the enclosed stirring hydraulic system includes passing through piping connection
Mixing pump 4 and stirring motor 5, the mixing pump 4 be rigidly connected by stiff shaft and engine 11, the stirring motor installation
On the stirring speed reducer of the stirring system 6 of mixer truck；
First pressure sensor 7 in the enclosed stirring hydraulic system is set；
Second pressure sensor 10 in the enclosed vibration hydraulic system is set；
With the speed probe 8 of the engine 11 connection；
And respectively with first pressure sensor 7, second pressure sensor 10, speed probe 8, traveling pump 3 and stirring
The microprocessor 9 of 4 electrical connection of pump.
Referring to attached drawing 3, the control method based on a kind of hydraulic system power matching control apparatus the following steps are included:
Step 1: microprocessor 9 controls the input current of mixing pump 4 according to electric-hydraulic proportion pwm signal, and passes through micro process
The control electric current I of the reading mixing pump 4 of device 9It stirs, microprocessor 9 according to formula (one) be calculated stirring pumpage qIt stirs:
qIt stirs=K × IIt stirs(1)
Wherein, K is mixing pump current gear signal；
Step 2: first pressure sensor 7 acquires the system pressure P of enclosed stirring hydraulic system, and P is transferred to micro- place
It manages in device 9；
Step 3: microprocessor 9 is filtered the system pressure P of enclosed stirring hydraulic system to obtain stable pressure
Force value PIt stirs；
Step 4: the stirring pumpage q obtained according to step 1It stirsWith pressure value P obtained in step 3It stirsPass through formula
(2) mixing pump 4 is calculated to work required torque TIt stirs:
TIt stirs=PIt stirs×qIt stirs(2)；
Step 5: the output revolving speed n of the acquisition engine 11 of speed probe 8Hair, and by nHairIt is transferred in microprocessor 9；
Step 6: microprocessor 9 is by the output revolving speed n of the engine 11 acquired in step 5HairIt is pre- with 9 inside of microprocessor
The revolving speed first inputted-torque meter control, obtains the corresponding output torque T of engine 11Hair；Revolving speed-torque meter mentioned here is
Refer to that the self-characteristic of each engine 11, each engine 11 have the corresponding revolving speed torque table of comparisons, different model when dispatching from the factory
Engine 11 to compare table different, in actual use, also not according to the table of comparisons used in selected 11 difference of engine
Together；
Step 7: the 11 output torque T of engine that microprocessor 9 will obtain in step 6HairIt is stirred with what is obtained in step 4
Torque T needed for mixing 4 work of pumpIt stirsIt makes the difference to obtain 11 surplus torque of engine, and using this torque as the input torque of traveling pump 3
TRow；
Step 8: the system pressure that second pressure sensor 10 acquires enclosed vibration hydraulic system is transmitted to microprocessor 9
In, and handle and obtain the system pressure P of stable enclosed vibration hydraulic systemRow；
Step 9: microprocessor 9 is according to the system pressure P of the enclosed vibration hydraulic system obtained in step 8RowAnd step
The input torque T of the traveling pump 3 obtained in sevenRowThe discharge capacity q of traveling pump 3 is calculated by formula (three)Row:
qRow=TRow/PRow(3)；
Step 10: according to the discharge capacity q of the traveling pump 3 obtained in step 9RowWith system pressure PRowIt is calculated by formula (four)
Obtain the input current I of traveling pump 3Row:
Wherein: a is the current minimum to work,
The current maxima that b works when being pressure minimum,
C is the current maxima to work；
qmaxFor the maximum pump discharge of pump,
ΔpmaxFor system maximum pressure；
Here the value of a, b and c are the ratio control characteristics of pump, are given value, qmaxFor the maximum pump discharge of pump, pump
Self-characteristic is given value；ΔpmaxIt is set when designing for system maximum pressure, system, is given value；
Step 11: microprocessor 9 is by the input current I of the traveling pump 3 obtained in step 10RowSend traveling pump 3 to, row
It walks pump 3 and best operating point is found according to existing control electric current and system feedback pressure.System feedback pressure mentioned here is
Internal feedback, the self-acting effect of pump.Here pressure is also collected P aboveRow。
The traveling pump 3 is electric proportional control pump, and the running motor 2 is automatically controlled dibit motor；The mixing pump 4 is electricity
Ratio control pump, the stirring motor 5 are fixed displacement motor.
A kind of hydraulic system power matching control apparatus of the invention and method pass through the discharge capacity real-time control of traveling pump 3
Dynamic calculating is carried out to bearing power simultaneously, with the work of the working condition of mixing pump 4 and 11 revolving speed of engine control traveling pump 3
State.It prevents the overload of engine 11 from improving complete machine rate of economizing gasoline, while 11 governor control characteristics of adaptive engine, it is general to improve system
Property.
Claims (4)
1. a kind of hydraulic system power matching control apparatus characterized by comprising
Engine (11)；
With the enclosed vibration hydraulic system of engine (11) connection, the enclosed vibration hydraulic system includes by piping connection
Traveling pump (3) and running motor (2), the traveling pump (3) are rigidly connected by stiff shaft and engine (11), the walking horse
It is rigidly connected up to the walking mechanism (1) of (2) and mixer truck；
Hydraulic system is stirred with the enclosed of engine (11) connection, the enclosed stirring hydraulic system includes by piping connection
Mixing pump (4) and stirring motor (5), the mixing pump (4) are rigidly connected by stiff shaft and engine (11), the stirring horse
It is rigidly connected up to the stirring system (6) of (5) and mixer truck；
First pressure sensor (7) in the enclosed stirring hydraulic system is set；
Second pressure sensor (10) in the enclosed vibration hydraulic system is set；
With the speed probe (8) of the engine (11) connection；
And respectively with first pressure sensor (7), second pressure sensor (10), speed probe (8), traveling pump (3) and
The microprocessor (9) of mixing pump (4) electrical connection；
The control method of the hydraulic system power matching control apparatus, comprising the following steps:
Step 1: microprocessor (9) controls the input current of mixing pump (4) according to electric-hydraulic proportion pwm signal, and passes through micro process
Device (9) reads the control electric current I of mixing pump (4)It stirs, microprocessor (9) according to formula (one) be calculated stirring pumpage qIt stirs:
qIt stirs=K×IIt stirs(1)
Wherein, K is mixing pump current gear signal；
Step 2: first pressure sensor (7) acquires the system pressure P of enclosed stirring hydraulic system, and P is transferred to micro process
In device (9)；
Step 3: microprocessor (9) obtains the system pressure P progress low-pass filtering treatment of enclosed stirring hydraulic system stable
Pressure value PIt stirs；
Step 4: the stirring pumpage q obtained according to step 1It stirsWith pressure value P obtained in step 3It stirsIt is counted by formula (two)
Torque T needed for calculation obtains mixing pump (4) workIt stirs:
TIt stirs=PIt stirs×qIt stirs(2)；
Step 5: speed probe (8) acquires the output revolving speed n of engine (11)Hair, and by nHairIt is transferred in microprocessor (9)；
Step 6: microprocessor (9) is by the output revolving speed n of the engine acquired in step 5 (11)HairIt is internal with microprocessor (9)
The revolving speed pre-entered-torque meter control, obtains the corresponding output torque T of engine (11)Hair；
Step 7: microprocessor (9) is by the engine obtained in step 6 (11) output torque THairIt is stirred with what is obtained in step 4
Torque T needed for mixing pump (4) workIt stirsIt makes the difference to obtain engine (11) surplus torque, and using this torque as the defeated of traveling pump (3)
Enter torque TRow；
Step 8: the system pressure of second pressure sensor (10) acquisition enclosed vibration hydraulic system is transmitted in microprocessor
(9), and processing obtains the system pressure P of stable enclosed vibration hydraulic systemRow；
Step 9: microprocessor (9) is according to the system pressure P of the enclosed vibration hydraulic system obtained in step 8RowAnd step 7
The input torque T of the traveling pump (3) of middle acquisitionRowThe discharge capacity q of traveling pump (3) is calculated by formula (three)Row:
qRow=TRow/PRow(3)；
Step 10: according to the discharge capacity q of the traveling pump (3) obtained in step 9RowWith system pressure PRowIt is calculated by formula (four)
To the input current I of traveling pump (3)Row:
(4)
Wherein: a is the current minimum to work,
The current maxima that b works when being pressure minimum,
C is the current maxima to work；
For the maximum pump discharge of pump；
For system maximum pressure；
Step 11: microprocessor (9) is by the input current I of the traveling pump obtained in step 10 (3)RowSend traveling pump (3) to,
Traveling pump (3) finds best operating point according to existing control electric current and system feedback pressure.
2. a kind of hydraulic system power matching control apparatus according to claim 1, which is characterized in that the traveling pump
(3) it is pumped for electric proportional control, the running motor (2) is automatically controlled dibit motor；The mixing pump (4) is electric proportional control pump,
The stirring motor (5) is fixed displacement motor.
3. based on a kind of control method of hydraulic system power matching control apparatus described in claim 1, which is characterized in that packet
Include following steps:
Step 1: microprocessor (9) controls the input current of mixing pump (4) according to electric-hydraulic proportion pwm signal, and passes through micro process
Device (9) reads the control electric current I of mixing pump (4)It stirs, microprocessor (9) according to formula (one) be calculated stirring pumpage qIt stirs:
qIt stirs=K×IIt stirs(1)
Wherein, K is mixing pump current gear signal；
Step 2: first pressure sensor (7) acquires the system pressure P of enclosed stirring hydraulic system, and P is transferred to micro process
In device (9)；
Step 3: microprocessor (9) obtains the system pressure P progress low-pass filtering treatment of enclosed stirring hydraulic system stable
Pressure value PIt stirs；
Step 4: the stirring pumpage q obtained according to step 1It stirsWith pressure value P obtained in step 3It stirsIt is counted by formula (two)
Torque T needed for calculation obtains mixing pump (4) workIt stirs:
TIt stirs=PIt stirs×qIt stirs(2)；
Step 5: speed probe (8) acquires the output revolving speed n of engine (11)Hair, and by nHairIt is transferred in microprocessor (9)；
Step 6: microprocessor (9) is by the output revolving speed n of the engine acquired in step 5 (11)HairIt is internal with microprocessor (9)
The revolving speed pre-entered-torque meter control, obtains the corresponding output torque T of engine (11)Hair；
Step 7: microprocessor (9) is by the engine obtained in step 6 (11) output torque THairIt is stirred with what is obtained in step 4
Torque T needed for mixing pump (4) workIt stirsIt makes the difference to obtain engine (11) surplus torque, and using this torque as the defeated of traveling pump (3)
Enter torque TRow；
Step 8: the system pressure of second pressure sensor (10) acquisition enclosed vibration hydraulic system is transmitted in microprocessor
(9), and processing obtains the system pressure P of stable enclosed vibration hydraulic systemRow；
Step 9: microprocessor (9) is according to the system pressure P of the enclosed vibration hydraulic system obtained in step 8RowAnd step 7
The input torque T of the traveling pump (3) of middle acquisitionRowThe discharge capacity q of traveling pump (3) is calculated by formula (three)Row:
qRow=TRow/PRow(3)；
Step 10: according to the discharge capacity q of the traveling pump (3) obtained in step 9RowWith system pressure PRowIt is calculated by formula (four)
To the input current I of traveling pump (3)Row:
(4)
Wherein: a is the current minimum to work,
The current maxima that b works when being pressure minimum,
C is the current maxima to work；
For the maximum pump discharge of pump；
For system maximum pressure；
Step 11: microprocessor (9) is by the input current I of the traveling pump obtained in step 10 (3)RowSend traveling pump (3) to,
Traveling pump (3) finds best operating point according to existing control electric current and system feedback pressure.
4. control method according to claim 3, which is characterized in that the traveling pump (3) and mixing pump (4) are electric ratio
Example control pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169684.1A CN107061419B (en) | 2017-03-21 | 2017-03-21 | A kind of hydraulic system power matching control apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169684.1A CN107061419B (en) | 2017-03-21 | 2017-03-21 | A kind of hydraulic system power matching control apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061419A CN107061419A (en) | 2017-08-18 |
| CN107061419B true CN107061419B (en) | 2019-05-10 |
Family
ID=59619964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710169684.1A Expired - Fee Related CN107061419B (en) | 2017-03-21 | 2017-03-21 | A kind of hydraulic system power matching control apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061419B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613661A1 (en) * | 1986-04-23 | 1987-10-29 | Krupp Gmbh | Transporting caterpillar track |
| US5660041A (en) * | 1993-02-04 | 1997-08-26 | Linde Aktiengesellschaft | Process for adjusting the characteristics of infinitely variable transmissions of a vehicle |
| CN201149009Y (en) * | 2008-01-18 | 2008-11-12 | 中国石油集团东方地球物理勘探有限责任公司 | Double-closed type hydraulic system of exploration drill |
| CN105971052A (en) * | 2016-06-28 | 2016-09-28 | 长安大学 | Land leveller traveling hydraulic driving system with parallel connection of double pumps and double motors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291962A (en) * | 2007-05-28 | 2008-12-04 | Mitsubishi Electric Corp | Fault diagnostic unit of proportional valve |
-
2017
- 2017-03-21 CN CN201710169684.1A patent/CN107061419B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3613661A1 (en) * | 1986-04-23 | 1987-10-29 | Krupp Gmbh | Transporting caterpillar track |
| US5660041A (en) * | 1993-02-04 | 1997-08-26 | Linde Aktiengesellschaft | Process for adjusting the characteristics of infinitely variable transmissions of a vehicle |
| CN201149009Y (en) * | 2008-01-18 | 2008-11-12 | 中国石油集团东方地球物理勘探有限责任公司 | Double-closed type hydraulic system of exploration drill |
| CN105971052A (en) * | 2016-06-28 | 2016-09-28 | 长安大学 | Land leveller traveling hydraulic driving system with parallel connection of double pumps and double motors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061419A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105480141B (en) | Control system, method and device of concrete mixer truck and concrete mixer truck | |
| CN105245146B (en) | A kind of method for realizing the unidirectional chaotic motion of Permanent Magnet Synchronous Motor | |
| CN102826013B (en) | Method, device and system for controlling hydrostatic power transmission system | |
| CN107364005A (en) | Double dynamical concrete-mixing pump truck | |
| CN102720243A (en) | Excavator flow control method | |
| CN107335377A (en) | Integrated type skid-mounted acid solution continuous mixing device and technique | |
| CN106545548B (en) | More pump multi-motor durability test devices and method based on common DC bus technology | |
| CN103343679A (en) | Electro-hydraulic combination drive sand mixing truck | |
| CN107061419B (en) | A kind of hydraulic system power matching control apparatus and method | |
| CN206911162U (en) | Utilize the control device of stir current control leather Polyurethane resin slurry viscosity | |
| CN105401569B (en) | Dredged mud intra-pipe mixing and curing control device | |
| CN102251546B (en) | Control method for reducing oil consumption of excavator engine | |
| CN103465784A (en) | Power distribution system and control method thereof, concrete pump truck and engineering machinery | |
| CN105604326B (en) | vehicular concrete pump | |
| CN105673471B (en) | A kind of vertical analogue experiment method of metal screw pump | |
| CN205677813U (en) | Water pump variable speed energy conservation kinetic-control system | |
| CN204436762U (en) | A kind of concrete electric pump with frequency control of motor speed function | |
| CN104495626B (en) | Crane control method, device and system and crane | |
| CN202055798U (en) | Well cementing equipment | |
| CN205523696U (en) | Stir on -vehicle pump | |
| CN110874103B (en) | Control method, control system and control device of seawater desalination test platform | |
| CN103671054B (en) | Nothing sensing constant current conversion method and device for fluid supply system | |
| CN107700844A (en) | vehicular concrete pump | |
| CN110872136B (en) | Sea water desalination test platform | |
| CN205806081U (en) | A kind of frequency changing regulating speed control apparatus, hydraulic system and hydraulic pressure materials-taking machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 |