CN110030099A - A kind of drill jumbo hydrostatic transmissions control method - Google Patents
A kind of drill jumbo hydrostatic transmissions control method Download PDFInfo
- Publication number
- CN110030099A CN110030099A CN201910288815.7A CN201910288815A CN110030099A CN 110030099 A CN110030099 A CN 110030099A CN 201910288815 A CN201910288815 A CN 201910288815A CN 110030099 A CN110030099 A CN 110030099A
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- CN
- China
- Prior art keywords
- engine
- speed
- control method
- revolving speed
- hydraulic
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The present invention discloses a kind of drill jumbo hydrostatic transmissions control method, including controller, engine, hydraulic variable displacement pump and hydraulic motor, controller is connect with engine, engine is connect by shaft coupling with hydraulic variable displacement pump, hydraulic variable displacement pump drives hydraulic motor by pressure oil, and hydraulic motor is connect with tire；Specific control method is comprising steps of 1) controller is used to transmit traveling command signal to engine；2) engine is for receiving traveling command signal, and engine is run with setting speed, when the revolving speed of rate request or engine that the current setting speed of engine is not able to satisfy the driving instruction received is not able to satisfy power requirement, the engine is to travel the traveling of revolving speed required by command signal.The present invention, therefore can effective increasing service life of engine since the revolving speed of engine will not be constantly under high idle speed state and be worked by the control of driving instruction.
Description
Technical field
The present invention relates to a kind of drill jumbo hydrostatic transmissions control methods.
Background technique
With the continuous promotion of energy-saving and emission-reduction demand, reduction fuel consumption rate has become emphasis in mechanically moving field and grinds
The project studied carefully.The transmission efficiency on chassis also becomes the emphasis of research.The common chassis driving method of engineering machinery is hydraulic power,
This mode adaptive ability is strong, and manipulation strength is small, but transmission efficiency is lower.In order to improve chassis transmission efficiency, people start
The mode of research hydrostatic drive replaces traditional hydraulic power, since the transmission power of hydraulic pump and motor is limited, at present
Hydrostatic drive mode is used on small device, large scale equipment still uses hydraulic power mode.
Existing hydrostatic transmissions adopt the technical scheme that Engine driven Hydraulic Pump, hydraulic pump drive hydraulic motor,
Hydraulic motor drives transfer case or hub reduction gear, realizes complete machine traveling.The control of complete machine travel speed is hydraulic by changing
The discharge capacity of pump realizes speed change, and engine speed immobilizes.In order to guarantee the dynamic property of vehicle, the working speed of engine
Fixation maintains in maximum output power point.
Since engine speed immobilizes, engine is in high-speed state always, in medium and small load operation, hair
Motivation can not also work in fuel-economy area, and fuel consumption is big.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of drill jumbo hydrostatic transmissions control method,
Effectively engine is avoided to be in high idle speed state.
To achieve the goals above, a kind of drill jumbo hydrostatic transmissions control method that the present invention uses, including control
Device, engine, hydraulic variable displacement pump and hydraulic motor, the controller are connect with engine, the engine by shaft coupling with
Hydraulic variable displacement pump connection, the hydraulic variable displacement pump drive hydraulic motor by pressure oil, and the hydraulic motor is connect with tire；
Specific control method, comprising the following steps:
1) controller is used to transmit traveling command signal to engine；
2) engine is for receiving traveling command signal, and engine is run with setting speed, when working as engine
When the revolving speed of rate request or engine that preceding setting speed is not able to satisfy the driving instruction received is not able to satisfy power requirement,
The engine is to travel the traveling of revolving speed required by command signal.
As an improvement, being additionally provided with gearbox, vehicle bridge between the hydraulic motor and tire, hydraulic motor is drivingly connected speed change
Case, the gearbox are drivingly connected vehicle bridge.
As an improvement, maximum speed needed for the traveling command signal is the rated speed of engine.
As an improvement, the revolving speed of the engine is by any when the revolving speed needed for travelling command signal is zero and keeps
It is presently in speed setting value and returns to idling.
As an improvement, being controlled when the revolving speed of the engine switches over using slope.
As an improvement, when the revolving speed of the engine switches over, after the displacement variation of hydraulic variable displacement pump output flow with
Output flow before variation is equal.
Compared with prior art, the beneficial effects of the present invention are:
1, complete machine accelerates to max. speed during this from stationary state, and the present invention can reduce fuel consumption 30%；It can
Reduce exhaust emissions amount 29%.
2, the present invention will not be constantly in work under high idle speed state since the revolving speed of engine is by the control of driving instruction
Make, therefore can effective increasing service life of engine.
Detailed description of the invention
Fig. 1 is that schematic diagram is arranged in engine speed in the present invention；
Fig. 2 is engine speed slope control figure of the invention；
Fig. 3 is variable pump displacement control figure of the invention.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is carried out below further detailed
It describes in detail bright.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, it is not limited to this hair
Bright range.
A kind of drill jumbo hydrostatic transmissions control method, including controller, engine, hydraulic variable displacement pump and hydraulic horse
It reaches, the controller is connect with engine, and the engine is connect by shaft coupling with hydraulic variable displacement pump, the hydraulic variable displacement pump
Hydraulic motor is driven by pressure oil, the hydraulic motor is connect with tire；
Specific control method, comprising the following steps:
1) controller is used to transmit traveling command signal to engine；
2) engine is for receiving traveling command signal, and engine is run with setting speed, when working as engine
When the revolving speed of rate request or engine that preceding setting speed is not able to satisfy the driving instruction received is not able to satisfy power requirement,
The engine is to travel the traveling of revolving speed required by command signal.
As an improvement, being additionally provided with gearbox, vehicle bridge between the hydraulic motor and tire, hydraulic motor is drivingly connected speed change
Case, the gearbox are drivingly connected vehicle bridge.
As an improvement, maximum speed needed for the traveling command signal is the rated speed of engine.
As an improvement, the revolving speed of the engine is by any when the revolving speed needed for travelling command signal is zero and keeps
It is presently in speed setting value and returns to idling.
As an improvement, being controlled when the revolving speed of the engine switches over using slope.
As an improvement, when the revolving speed of the engine switches over, after the displacement variation of hydraulic variable displacement pump output flow with
Output flow before variation is equal.
Embodiment 1
A kind of drill jumbo hydrostatic transmissions control method, including controller, engine, hydraulic variable displacement pump and hydraulic horse
It reaches, engine is connect by shaft coupling with hydraulic variable displacement pump, and pump drives hydraulic motor by pressure oil, and hydraulic motor drives speed change
Case, gearbox drive axle again, bridge tire on the drive wheels again；Or engine is connect by shaft coupling with hydraulic variable displacement pump, pump passes through pressure
Power oil drives hydraulic motor, and hydraulic motor directly drives tire；
In the present invention, driving instruction and engine speed, pumpage, the control logic of speed three are as follows:
1, the adjusting of engine speed: firstly, according to the characteristic (such as attached drawing 1) of engine, the revolving speed of several fixations is chosen
It is worth the working speed as engine in the process of running: low idling n1, economic speed n2 (engine torque is maximum), economic turn
Fast n3, economic speed n4, economic speed n5 (rate of fuel consumption is minimum) ..., rated speed n11, will wherein meet under rated speed whole
The requirement of machine max. speed；
In the order of no traveling, engine idling n1 operation, once there is traveling order demand, engine will be turned with economy
Fast n2 operation, is only unable to satisfy the rate request of driving instruction, or need to improve engine speed under current setting speed
When meeting more power demands, control engine is promoted to more higher leveled revolving speed.And so on, until reaching engine
Rated speed to obtaining highest speed.When traveling order return to zero and keep again when, engine can from it is any currently
Locating speed setting value is returned directly to idling n1.
Condition is switched between every speed: a condition is that traveling order is greater than a threshold value, the threshold value
It is under current setting speed, hydraulic system is adjusted to the corresponding bid value of speed achieved after maximum, it is meant that can not
Higher speed is obtained by way of height-regulating hydraulic system, can only improve engine speed；Another condition is demand function
Rate is higher than the peak power output under current rotating speed.Conversely, when engine speed setting value can be reduced by judging whether, one
Condition is threshold value of the traveling order lower than drop revolving speed, another condition is that current demand power starts not higher than after drop revolving speed
Machine peak power output.Also need two above condition that can maintain the regular hour simultaneously, after there is short time reduction of speed
The case where raising speed again again.
Engine jumps to another revolving speed from a revolving speed, to improve driver comfort, to there is slope control.Such as attached drawing
2。
2, the adjusting of hydraulic pump: engine governed speed mode is to jump to another revolving speed point from a revolving speed point, to
The consistent of travel speed is kept before and after rotational speed regulation, guarantees driver comfort, needs simultaneously to carry out the control amount of hydraulic system
It adjusts.When engine speed-raising, hydraulic system pumpage is reduced；When drop engine speed, hydraulic system pumpage is improved.It protects
The flow exported after card pumpage variation and the flow exported before variation are equal.Such as Fig. 3.
Complete machine accelerates to max. speed during this from stationary state, and the present invention can reduce fuel consumption 30%；It can drop
Low exhaust gas discharge amount 29%.The present invention will not be constantly in high idle speed shape since the revolving speed of engine is by the control of driving instruction
It works under state, therefore can effective increasing service life of engine.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of drill jumbo hydrostatic transmissions control method, which is characterized in that including controller, engine, hydraulic variable displacement pump
And hydraulic motor, the controller are connect with engine, the engine is connect by shaft coupling with hydraulic variable displacement pump, the liquid
Pressure variable amount pump drives hydraulic motor by pressure oil, and the hydraulic motor is connect with tire；
Specific control method, comprising the following steps:
1) controller is used to transmit traveling command signal to engine；
2) engine is for receiving traveling command signal, and engine is run with setting speed, when currently setting for engine
It is described when determining the revolving speed of rate request or engine that revolving speed is not able to satisfy the driving instruction received and not being able to satisfy power requirement
Engine is to travel the traveling of revolving speed required by command signal.
2. a kind of drill jumbo hydrostatic transmissions control method according to claim 1, which is characterized in that described is hydraulic
Gearbox, vehicle bridge are additionally provided between motor and tire, hydraulic motor is drivingly connected gearbox, and the gearbox is drivingly connected vehicle bridge.
3. a kind of drill jumbo hydrostatic transmissions control method according to claim 1, which is characterized in that the traveling
Maximum speed needed for command signal is the rated speed of engine.
4. a kind of drill jumbo hydrostatic transmissions control method according to claim 1 or 3, which is characterized in that work as traveling
When revolving speed needed for command signal is zero and keeps, the revolving speed of the engine by it is any be presently in speed setting value return to it is idle
Speed.
5. a kind of drill jumbo hydrostatic transmissions control method according to claim 1, which is characterized in that the engine
Revolving speed when switching over, controlled using slope.
6. a kind of drill jumbo hydrostatic transmissions control method according to claim 1 or 5, which is characterized in that the hair
When the revolving speed of motivation switches over, output flow is equal with the output flow before variation after the displacement variation of hydraulic variable displacement pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288815.7A CN110030099A (en) | 2019-04-11 | 2019-04-11 | A kind of drill jumbo hydrostatic transmissions control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288815.7A CN110030099A (en) | 2019-04-11 | 2019-04-11 | A kind of drill jumbo hydrostatic transmissions control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110030099A true CN110030099A (en) | 2019-07-19 |
Family
ID=67238020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910288815.7A Pending CN110030099A (en) | 2019-04-11 | 2019-04-11 | A kind of drill jumbo hydrostatic transmissions control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN110030099A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258458A (en) * | 2019-08-07 | 2022-03-29 | 卡特彼勒公司 | Controlling an engine of a machine based on a sensed mechanical load demand |
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| US20030183075A1 (en) * | 2002-03-30 | 2003-10-02 | Kerian Thomas Shawn | Precession modulated transmission |
| CN101086232A (en) * | 2007-07-09 | 2007-12-12 | 三一重工股份有限公司 | Concrete transfer pump energy-saving control method |
| CN101215841A (en) * | 2008-01-16 | 2008-07-09 | 三一重工股份有限公司 | Hydraulic grader transmission gear |
| CN104420495A (en) * | 2013-09-11 | 2015-03-18 | 吴坚 | Hydraulic energy-saving fuzzy control system for excavators |
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2019
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| US20030183075A1 (en) * | 2002-03-30 | 2003-10-02 | Kerian Thomas Shawn | Precession modulated transmission |
| CN101086232A (en) * | 2007-07-09 | 2007-12-12 | 三一重工股份有限公司 | Concrete transfer pump energy-saving control method |
| CN101215841A (en) * | 2008-01-16 | 2008-07-09 | 三一重工股份有限公司 | Hydraulic grader transmission gear |
| CN104420495A (en) * | 2013-09-11 | 2015-03-18 | 吴坚 | Hydraulic energy-saving fuzzy control system for excavators |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258458A (en) * | 2019-08-07 | 2022-03-29 | 卡特彼勒公司 | Controlling an engine of a machine based on a sensed mechanical load demand |
| CN114258458B (en) * | 2019-08-07 | 2024-05-03 | 卡特彼勒公司 | Controlling an engine of a machine based on a detected machine load demand |
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Application publication date: 20190719 |