CN106545647A - A kind of engineering machinery hydraulic power velocity stagess system and control method - Google Patents
A kind of engineering machinery hydraulic power velocity stagess system and control method Download PDFInfo
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- CN106545647A CN106545647A CN201610128667.9A CN201610128667A CN106545647A CN 106545647 A CN106545647 A CN 106545647A CN 201610128667 A CN201610128667 A CN 201610128667A CN 106545647 A CN106545647 A CN 106545647A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/74—Inputs being a function of engine parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The invention discloses a kind of engineering machinery hydraulic power velocity stagess system and control method, are related to technical field of engineering machinery, its system includes:Velocity stage selector, velocity stagess controller, engine throttle opening actuator, engine electronic control unit, change speed gear box speed compare select unit;Velocity stagess controller receives the speed of velocity stage selector transmission and selects level signal, and the accelerator opening amount signal that engine throttle opening actuator sends;Velocity stagess controller sends control instruction than select unit to engine electronic control unit and change speed gear box speed.The hydraulic power velocity stagess system and control method of the present invention, by change speed gear box speed ratio and engine throttle opening grading control, increasing for speed series can be realized, the adaptability of the different operating modes of whole machine reply can be strengthened, simplify operator, reduce labor intensity, and simple, low cost.
Description
Technical field
The present invention relates to technical field of engineering machinery, more particularly to a kind of engineering machinery hydraulic power speed
Degree hierarchy system and control method.
Background technology
Hydraulic power is the widely used transmission mode of engineering machinery, typically by fluid torque-converter and machine
Tool change speed gear box is constituted.Fluid torque-converter has load adaptive ability, ensure that whole machine with load
The speed of fluctuation held stationary;Mechanical gear box realizes whole motor speed level by transmission speed ratio conversion
Change, to meet requirement of the different operating modes to whole motor speed.Engineering machinery vehicle jolts, and loads many
Become, driver is tired with the pattern for controlling operating speed according to operating mode real-time regulation engine throttle opening
Labor intensity is big, and operating mode followability is poor.Therefore, operator in order to the convenience and comfortableness of operation it is logical
Operation is carried out with maximum throttle often.Engineering machinery condition range is wide, and different operating modes are to whole motor speed
Require different.But, hydraulic transmission gearbox number of ratios is limited, and operator is made with maximum throttle
The operator scheme of industry causes whole machine work under certain several speed, it is difficult to meet under different operating modes
Diversified rate request.At present, it is in order to meet requirement of the different operating modes to whole motor speed, existing
Technology is generally by increasing change speed gear box number of ratios to increase overall operation velocity stage.Change speed gear box speed ratio
After increase, whole motor speed series increases, but change speed gear box speed increases than increasing rear system complexity
Plus, cost is raised.
The content of the invention
In view of this, the invention solves the problems that a technical problem be to provide a kind of engineering machinery fluid power
Transmission speed hierarchy system and control method.
A kind of engineering machinery hydraulic power velocity stagess system, including:Velocity stage selector, speed
Sorter controller, engine throttle opening actuator, engine electronic control unit, change speed gear box speed
Compare select unit;The velocity stagess controller respectively with the velocity stage selector, described start
Machine oil door opening adjuster, the engine electronic control unit, change speed gear box speed are more single than selecting
Unit's electrical connection;The velocity stagess controller receives the speed of the velocity stage selector transmission and selects level
Signal, and the accelerator opening amount signal that the engine throttle opening actuator sends;The speed
Sorter controller is sent to the engine electronic control unit and change speed gear box speed than select unit
Control instruction.
According to one embodiment of present invention, further, the velocity stage selector is handle type
Selector, button selector or knob selector.
According to one embodiment of present invention, further, the velocity stage selector includes:Touch
Touch formula display screen.
According to one embodiment of present invention, further, the change speed gear box speed than select unit is
Change speed gear box Transmission Ratio Control solenoid valve block.
According to one embodiment of present invention, further, the engine throttle opening actuator
For Motronic control maps gas pedal.
According to one embodiment of present invention, further, the engine throttle opening actuator
For engine throttle opening electronic knob.
A kind of control method based on hydraulic power velocity stagess system as above, including:Institute
Stating velocity stagess controller selects level signal to determine speed according to the speed that the velocity stage selector sends
Level value, and change speed gear box speed ratio is determined according to the velocity stage value, based on change speed gear box speed ratio
Control instruction is sent than select unit to change speed gear box speed, the change speed gear box is controlled with the speed change
Case speed ratio work;The velocity stagess controller is sent out according to the engine throttle opening actuator
The accelerator opening amount signal for sending determines accelerator open degree value, and is started to described based on the accelerator open degree value
Electromechanical sub-control unit sends accelerator open degree control instruction.
According to one embodiment of present invention, further, based on the accelerator open degree value to described
Engine electronic control unit sends accelerator open degree control instruction to be included:If the accelerator open degree value
During less than or equal to accelerator open degree setting value, then throttle is sent to the engine electronic control unit
Aperture control instruction, the accelerator open degree for controlling electromotor are the accelerator open degree value;If the throttle
Opening value is more than the accelerator open degree setting value, then send oil to the engine electronic control unit
Door aperture control instruction, the accelerator open degree for controlling electromotor are the accelerator open degree setting value.
According to one embodiment of present invention, further, speed change is determined according to the velocity stage value
Case speed ratio includes:N number of velocity stage value and M change speed gear box speed ratio are provided with, wherein,
N≥M;Determine the first corresponding relation of N number of velocity stage value and M change speed gear box speed ratio;Wherein,
1 change speed gear box speed ratio can be corresponding with multiple velocity stage values;The velocity stagess controller according to
The speed selects level signal that velocity stage value is determined from N number of velocity stage value, and is based on first pair
Should be related to and determine the change speed gear box speed ratio corresponding with this velocity stage value.
According to one embodiment of present invention, further, the velocity stagess controller is according to institute
The accelerator opening amount signal for stating the transmission of engine throttle opening actuator determines that accelerator open degree value includes:If
It is equipped with L accelerator open degree setting value;Wherein, L is less than N;Determine N number of velocity stage value with it is described
Second corresponding relation of L accelerator open degree setting value;Wherein, 1 accelerator open degree setting value can be with
Multiple velocity stage value correspondences;The velocity stagess controller based on second corresponding relation determine with
Present speed level is worth corresponding accelerator open degree setting value.
According to one embodiment of present invention, further, including:It is provided with 6 velocity stage values
With 4 change speed gear box speed ratios, 6 velocity stage values are to increase successively, the 4 change speed gear box speed
Ratio is to increase successively;Wherein, the first change speed gear box speed ratio is relative with first, second velocity stage value
Should, the second change speed gear box speed ratio is corresponding with the 3rd, fourth speed level value, the 3rd change speed gear box speed ratio
Value is corresponding with the 5th velocity stage value, and the 4th change speed gear box speed ratio is corresponding with the 6th velocity stage value.
According to one embodiment of present invention, further, including:It is provided with 3 accelerator open degrees
Setting value, 3 accelerator open degree setting values are to increase successively;Wherein, First Speed level value with
First accelerator open degree setting value is corresponding, and third speed level value is relative with the second accelerator open degree setting value
Should;Secondth, four, five, six velocity stage values the 3rd accelerator open degree setting value of correspondence, the 3rd throttle are opened
Degree setting value is 100%.
According to one embodiment of present invention, further, including:It is provided with 8 velocity stage values
With 6 change speed gear box speed ratios, 8 velocity stage values are to increase successively, the 6 change speed gear box speed
Ratio is to increase successively;Wherein, the first change speed gear box speed ratio is corresponding with First Speed level value, the
Two change speed gear boxes speed ratio is corresponding with second, third velocity stage value, the fast ratio of the 3rd change speed gear box and the
4th, five velocity stages value is corresponding, and the 4th change speed gear box speed ratio is corresponding with the 6th velocity stage value, the
Five change speed gear boxes speed ratio is corresponding with the 7th velocity stage value, the fast ratio of the 6th change speed gear box and the 8th speed
Level value is corresponding.
According to one embodiment of present invention, further, including:It is provided with 3 accelerator open degrees
Setting value, 3 accelerator open degree setting values are to increase successively;Second speed level value is oily with first
Door aperture setting value is corresponding, and fourth speed level value is corresponding with the second accelerator open degree setting value, the
First, the 3rd accelerator open degree setting value of three, five, six, seven, eight velocity stage values correspondence, the 3rd throttle
Aperture setting value is 100%.
The engineering machinery hydraulic power velocity stagess system and control method of the present invention, by change speed gear box
Speed ratio and engine throttle opening grading control, can realize increasing for speed series, can strengthen whole
The adaptability of the different operating modes of machine reply, simplifies operator, reduces labor intensity.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will
Accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it is aobvious and easy
Insight, drawings in the following description are only some embodiments of the present invention, common for this area
For technical staff, without having to pay creative labor, can be with according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is one embodiment of the engineering machinery hydraulic power velocity stagess system according to the present invention
Schematic diagram;
Fig. 2 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of one embodiment;
Fig. 3 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of another embodiment;
Fig. 4 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of another embodiment;
Fig. 5 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of further embodiment.
Specific embodiment
With reference to the accompanying drawings the present invention is described more fully, wherein illustrating the example of the present invention
Property embodiment.Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that described embodiment is only the present invention one
Section Example, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is general
The every other embodiment obtained under the premise of creative work is not made by logical technical staff, all
Belong to the scope of protection of the invention.With reference to each figure and embodiment to technical scheme
Carry out many descriptions.
" first ", " second " hereinafter etc., is to distinguish in description, does not have other special
Implication.
As shown in figure 1, the present invention provides a kind of engineering machinery hydraulic power velocity stagess system.Work
Journey mechanical hydraulic transmission speed hierarchy system includes:Velocity stage selector 3, velocity stagess controller
1st, engine throttle opening actuator 2, engine electronic control unit 4, change speed gear box speed are than selecting
Unit 5.Velocity stagess controller 1 is adjusted with velocity stage selector 3, engine throttle opening respectively
Section device 2, engine electronic control unit 4, change speed gear box speed are than select unit electrical connection 5.Speed point
Level controller 1 receives the speed of 3 transmission of velocity stage selector and selects level signal, and engine throttle
The accelerator opening amount signal that opening adjuster 2 sends.Velocity stagess controller 1 is to Motronic control maps control
Unit processed 4 and change speed gear box speed send control instruction than select unit 5.
Velocity stage selector 3 is connected with velocity stagess controller 1, for selecting whole motor speed level.Send out
Motivation accelerator open degree actuator 2 is connected with velocity stagess controller 1, sends accelerator opening amount signal to speed
Degree sorter controller 1.Engine electronic control unit 4 is connected with velocity stagess controller 1, is received
The control instruction that velocity stagess controller 1 sends.Change speed gear box speed is than select unit 5 and velocity stagess control
Device processed 1 is connected, and receives the control instruction that velocity stagess controller 1 sends.Velocity stagess controller 1
The signal of velocity stage selector 3 and engine throttle opening actuator 2 is received, to Motronic control maps control
Unit processed 4 and change speed gear box speed send control instruction than select unit 5, realize the classification control of whole motor speed
System.
In one embodiment, velocity stage selector 3 can be selected for handle type selector, button
Device or knob selector.Velocity stage selector 3 includes:Touching display screen, user can lead to
Cross touching display screen input control instruction and obtain the status information of operation.Change speed gear box speed is than selecting
Unit 5 is change speed gear box Transmission Ratio Control solenoid valve block, for controlling the speed ratio of change speed gear box, can be existing
The various change speed gear box Transmission Ratio Control solenoid valve blocks having.Engine throttle opening actuator 2 can be to send out
Motivation efp, engine throttle opening electronic knob etc., can arrange or operate throttle
Aperture, controls the rotating speed of electromotor.
Engineering machinery hydraulic power velocity stagess system in above-described embodiment, can not increase existing
There is system speed-variable case speed than in the case of, by change speed gear box speed ratio and engine speed grading control,
Realize increasing for speed series, simple, low cost.
Fig. 2 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of one embodiment, as shown in Figure 2:
Step 101, velocity stagess controller select level signal according to the speed that velocity stage selector sends
Determine velocity stage value, and change speed gear box speed ratio is determined according to velocity stage value.
Step 102, sends control than select unit to change speed gear box speed based on change speed gear box speed ratio and refers to
Order, control change speed gear box is with change speed gear box speed ratio work.
Step 103, the throttle that velocity stagess controller is sent according to engine throttle opening actuator
Opening amount signal determines accelerator open degree value.
Step 104, sends accelerator open degree control to engine electronic control unit based on accelerator open degree value
System instruction.
The control method of the engineering machinery hydraulic power velocity stagess system in above-described embodiment, can
Grading control is carried out to change speed gear box speed ratio and engine speed, increasing for speed series is capable of achieving.
Fig. 3 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of another embodiment, as shown in Figure 3:
Step 201, velocity stagess controller receive the signal of velocity stage selector, decision person
The velocity stage of selection, for example, have selected 1,2,3 uniform velocity series.
Step 202, velocity stagess controller determine change according to the velocity stage that velocity stage selector is selected
Fast case speed ratio.
Step 203, velocity stagess controller send control instruction than select unit to change speed gear box speed,
So that change speed gear box is fast than under needed for being placed in.
Step 204, velocity stagess controller receive engine throttle opening information, and throttle is opened
Degree is judged;If it is, step 205 is entered, if it is not, then entering step 206.
Step 205, if accelerator open degree is more than certain setting value, the accelerator open degree setting value is sent
To engine electronic control unit.
Step 206, if accelerator open degree is less than or equal to certain setting value, the throttle for receiving is opened
Degree information is sent to engine electronic control unit.
In one embodiment, if accelerator open degree value is less than or equal to accelerator open degree setting value,
Then accelerator open degree control instruction is sent to engine electronic control unit, the throttle for controlling electromotor is opened
Spend for accelerator open degree value.If accelerator open degree value is more than accelerator open degree setting value, to Motronic control maps
Control unit sends accelerator open degree control instruction, and the accelerator open degree for controlling electromotor is set for accelerator open degree
Definite value.Accelerator open degree setting value can be configured according to demand.
N number of velocity stage value and M change speed gear box speed ratio, N >=M are provided with, for example, N is 6, M
For 4.Determine the first corresponding relation of N number of velocity stage value and M change speed gear box speed ratio.1 speed change
Case speed ratio can be corresponding with multiple velocity stage values, and velocity stagess controller selects level signal according to speed
Velocity stage value is determined from N number of velocity stage value, and is determined and this velocity stage based on the first corresponding relation
The corresponding change speed gear box speed ratio of value.
It is provided with L accelerator open degree setting value;Wherein, L is less than N, and such as L is 3.Determine N number of
Second corresponding relation of velocity stage value and L accelerator open degree setting value, 1 accelerator open degree setting value energy
It is enough corresponding with multiple velocity stage values.Velocity stagess controller based on the second corresponding relation determine with it is current
Velocity stage is worth corresponding accelerator open degree setting value.
For example, be provided with 6 velocity stage values and 4 change speed gear boxes speed ratios, 6 velocity stage values be according to
Secondary increase, 4 change speed gear box speed ratios are to increase successively.First change speed gear box speed ratio and first, the
Two velocity stages value is corresponding, and the second change speed gear box speed ratio is corresponding with the 3rd, fourth speed level value,
3rd change speed gear box speed ratio is corresponding with the 5th velocity stage value, and the 4th change speed gear box speed ratio is fast with the 6th
Degree level value is corresponding.3 accelerator open degree setting values are provided with, 3 accelerator open degree setting values are for successively
Increase.First Speed level value is corresponding with the first accelerator open degree setting value, third speed level value and the
Two accelerator open degree setting values are corresponding;Secondth, four, five, six velocity stage values the 3rd throttle of correspondence is opened
Degree setting value, the 3rd accelerator open degree setting value are 100%.
With application speed hierarchy system in four gear-stage velocity ratio hydraulic power engineering machinery realize 6 grades it is fast
The scheme of degree classification, wherein, 1,2,3,4,5,6 is velocity stage, is corresponding in turn to from low to high
Whole motor speed;K1, K2, K3, K4 are change speed gear box speed ratio, are corresponding in turn to change from high to low
Fast case speed ratio;X1 and X2 is accelerator open degree setting value, typically takes numerical value between 70%-90%.Four
The velocity stage of the setting of gear-stage velocity ratio hydraulic power engineering machinery, change speed gear box speed compare and accelerator open degree setting
One corresponding relation of value is as shown in table 1 below:
The parameter mapping table of tetra- gear-stage velocity ratio hydraulic power engineering machinery of table 1-
Fig. 4 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of another embodiment, as shown in Figure 4:
Step 301, velocity stagess controller receive the signal of velocity stage selector, decision person
The velocity stage of selection.
Step 302, judges to velocity stage, if for 2,4,5,6 grades.If it is,
Into step 304, if it is not, then entering step 303.
Step 304, if velocity stage is 2,4,5,6, velocity stagess controller compares to change speed gear box speed
Select unit sends the control instruction for selecting speed than K1, K2, K3 and K4 respectively.
Step 303, judges whether velocity stage is 1, if it is, step 306 is entered, if
It is no, then into step 305.
Step 306, if velocity stage is 1, velocity stagess controller is sent out to change speed gear box speed than select unit
Send to be elected and select the fast control instruction than K1, into step 308.
Step 305, velocity stagess controller respectively send selection speed than select unit to change speed gear box speed
Than the control instruction of K2, into step 307.
Step 307, velocity stagess controller receive the throttle that engine throttle opening actuator sends
Whether opening information, judge the throttle beginning more than X2, if it is, step 309 is entered, if
It is no, then into step 311.
Step 308, velocity stagess controller receive the throttle that engine throttle opening actuator sends
Whether opening information, judge the throttle beginning more than X1, if it is, step 310 is entered, if
It is no, then into step 311.
Step 309, if accelerator open degree is more than X2, sends throttle to engine electronic control unit
Aperture X2 control instruction.
Step 310, if accelerator open degree is more than X1, sends throttle to engine electronic control unit
Aperture X1 control instruction.
Step 311, if accelerator open degree is not more than X1, sends institute to engine electronic control unit
The accelerator open degree for receiving, if accelerator open degree is not more than X2, sends out to engine electronic control unit
Send received accelerator open degree instruction.
In one embodiment, 8 velocity stage values and 6 change speed gear box speed ratios are provided with, 8 fast
To increase successively, 6 change speed gear box speed ratios are to increase successively to degree level value;Wherein, the first change speed gear box
Fast ratio is corresponding with First Speed level value, the second change speed gear box speed ratio and second, third velocity stage
Value is corresponding, and the 3rd change speed gear box speed ratio is corresponding with fourth, fifth velocity stage value, the 4th change speed gear box
Fast ratio is corresponding with the 6th velocity stage value, and the 5th change speed gear box speed ratio is relative with the 7th velocity stage value
Should, the 6th change speed gear box speed ratio is corresponding with the 8th velocity stage value.It is provided with 3 accelerator open degrees to set
Definite value, 3 accelerator open degree setting values are to increase successively;Second speed level value and the first accelerator open degree
Setting value is corresponding, and fourth speed level value is corresponding with the second accelerator open degree setting value, first,
3rd, the 3rd accelerator open degree setting value of five, six, seven, eight velocity stage values correspondence, the 3rd accelerator open degree
Setting value is 100%.
With application speed hierarchy system in six gear-stage velocity ratio hydraulic power engineering machinery realize 8 grades it is fast
Degree classification scheme, wherein, 1,2,3,4,5,6,7,8 be velocity stage, be corresponding in turn to from
Low to high whole motor speed;K1, K2, K3, K4, K5 and K6 are change speed gear box speed ratio, successively
Correspondence change speed gear box speed ratio from high to low;X1 and X2 is accelerator open degree setting value, typically takes 70%-
Numerical value between 90%.The velocity stage of the setting of six gear-stage velocity ratio hydraulic power engineering machinery, change speed gear box speed
Than as shown in table 2 below with accelerator open degree setting value corresponding relation:
Velocity stage | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Change speed gear box speed ratio | K1 | K2 | K2 | K3 | K3 | K4 | K5 | K6 |
Accelerator open degree setting value | 100% | X1 | 100% | X2 | 100% | 100% | 100% | 100% |
The parameter mapping table of six gear-stage velocity ratio hydraulic power engineering machinery of table 2-
Fig. 5 is the control method of the engineering machinery hydraulic power velocity stagess system according to the present invention
The flow chart of further embodiment, as shown in Figure 5:
Step 401, velocity stagess controller receive the signal of velocity stage selector, decision person
The velocity stage of selection.
Step 402, judges to velocity stage, if for 1,3,5,6,7,8 grades.If
It is, then into step 404, if it is not, then entering step 403.
Step 404, if velocity stage is 1,3,5,6,7,8, velocity stagess controller is to speed change
Case speed sends the control for selecting speed than K1, K2, K3, K4, K5, K6 respectively than select unit
Instruction.
Step 403, judges whether velocity stage is 2, if it is, step 406 is entered, if
It is no, then into step 405.
Step 406, if velocity stage is 2, velocity stagess controller is sent out to change speed gear box speed than select unit
Send to be elected and select the fast control instruction than K2, into step 408.
Step 405, velocity stagess controller respectively send selection speed than select unit to change speed gear box speed
Than the control instruction of K3, into step 407.
Step 407, velocity stagess controller receive the throttle that engine throttle opening actuator sends
Whether opening information, judge the throttle beginning more than X2, if it is, step 410 is entered, if
It is no, then into step 409.
Step 408, velocity stagess controller receive the throttle that engine throttle opening actuator sends
Whether opening information, judge the throttle beginning more than X1, if it is, step 411 is entered, if
It is no, then into step 409.
Step 409, if accelerator open degree is not more than X1, sends to motivation electronic control unit and is connect
The accelerator open degree instruction for receiving.If accelerator open degree is not more than X2, to engine electronic control unit
Send received accelerator open degree instruction.
Step 410, if accelerator open degree is more than X2, sends throttle to engine electronic control unit
Aperture X2 control instruction;
Step 411, if accelerator open degree is more than X1, sends throttle to engine electronic control unit
Aperture X1 control instruction;
The engineering machinery hydraulic power velocity stagess system provided in above-described embodiment and control method,
By change speed gear box speed ratio and engine throttle opening grading control, the increasing of speed series can be realized
It is many, the adaptability of the different operating modes of whole machine reply can be strengthened, simplified operator, reduced work
Intensity, and simple, low cost.
The method of the present invention and system may be achieved in many ways.For example, can pass through soft
Part, hardware, firmware or software, hardware, firmware any combinations come realize the present invention side
Method and system.It is for said sequence the step of method merely to illustrating, of the invention
The step of method, is not limited to order described in detail above, unless specifically stated otherwise.
Additionally, in certain embodiments, also the present invention can be embodied as recording journey in the recording medium
Sequence, these programs are included for realizing the machine readable instructions of the method according to the invention.Cause
And, the record that the present invention also covers storage for performing the program of the method according to the invention is situated between
Matter.
Description of the invention is given for the sake of example and description, and is not exhaustively
Or limit the invention to disclosed form.Many modifications and variations are for the common skill of this area
It is obvious for art personnel.It is for the principle for more preferably illustrating the present invention to select and describe embodiment
And practical application, and one of ordinary skill in the art is made it will be appreciated that the present invention is suitable so as to design
In the various embodiments with various modifications of special-purpose.
Claims (14)
1. a kind of engineering machinery hydraulic power velocity stagess system, it is characterised in that include:
Velocity stage selector, velocity stagess controller, engine throttle opening actuator, electromotor
Electronic control unit, change speed gear box speed compare select unit;
The velocity stagess controller is opened with the velocity stage selector, the engine throttle respectively
Degree actuator, the engine electronic control unit, change speed gear box speed are electrically connected than select unit
Connect;The velocity stagess controller receives the speed of the velocity stage selector transmission and selects level signal,
And the accelerator opening amount signal that the engine throttle opening actuator sends;The velocity stagess control
Device processed sends control than select unit to the engine electronic control unit and change speed gear box speed and refers to
Order.
2. the system as claimed in claim 1, it is characterised in that:
The velocity stage selector is that handle type selector, button selector or knob are selected
Device.
3. the system as claimed in claim 1, it is characterised in that:
The velocity stage selector includes:Touching display screen.
4. the system as claimed in claim 1, it is characterised in that:
The change speed gear box speed is change speed gear box Transmission Ratio Control solenoid valve block than select unit.
5. the system as claimed in claim 1, it is characterised in that:
The engine throttle opening actuator is Motronic control maps gas pedal.
6. the system as claimed in claim 1, it is characterised in that:
The engine throttle opening actuator is engine throttle opening electronic knob.
7. a kind of hydraulic power velocity stagess system based on as described in any one of claim 1 to 6
Control method, it is characterised in that include:
The velocity stagess controller selects level signal true according to the speed that the velocity stage selector sends
Determine velocity stage value, and change speed gear box speed ratio is determined according to the velocity stage value, based on the change speed gear box
Fast ratio sends control instruction than select unit to change speed gear box speed, controls the change speed gear box with institute
State change speed gear box speed ratio work;
The velocity stagess controller is opened according to the throttle that the engine throttle opening actuator sends
Degree signal determines accelerator open degree value, and based on the accelerator open degree value to the engine electronic control system
Unit sends accelerator open degree control instruction.
8. method as claimed in claim 7, it is characterised in that based on the accelerator open degree value to
The engine electronic control unit sends accelerator open degree control instruction to be included:
If the accelerator open degree value is less than or equal to accelerator open degree setting value, start to described
Electromechanical sub-control unit sends accelerator open degree control instruction, and the accelerator open degree for controlling electromotor is described
Accelerator open degree value;If the accelerator open degree value is more than the accelerator open degree setting value, to described
Motivation electronic control unit sends accelerator open degree control instruction, and the accelerator open degree for controlling electromotor is institute
State accelerator open degree setting value.
9. method as claimed in claim 7, it is characterised in that determined according to the velocity stage value
Change speed gear box speed ratio includes:
N number of velocity stage value and M change speed gear box speed ratio are provided with, wherein, N >=M;
Determine the first corresponding relation of N number of velocity stage value and M change speed gear box speed ratio;Wherein, 1
Change speed gear box speed ratio can be corresponding with multiple velocity stage values;
The velocity stagess controller selects level signal from N number of velocity stage value according to the speed
Determine velocity stage value, and the change speed gear box corresponding with this velocity stage value is determined based on the first corresponding relation
Fast ratio.
10. method as claimed in claim 9, it is characterised in that the velocity stagess controller
Accelerator open degree value bag is determined according to the accelerator opening amount signal that the engine throttle opening actuator sends
Include:
It is provided with L accelerator open degree setting value;Wherein, L is less than N;
Determine that N number of velocity stage value is corresponding with the second of the L accelerator open degree setting value to close
System;Wherein, 1 accelerator open degree setting value can be corresponding with multiple velocity stage values;
The velocity stagess controller is determined and present speed level value phase based on second corresponding relation
Corresponding accelerator open degree setting value.
11. methods as claimed in claim 10, it is characterised in that include:
6 velocity stage values and 4 change speed gear box speed ratios are provided with, 6 velocity stage values are for successively
Increase, 4 change speed gear boxes speed ratio is to increase successively;
Wherein, the first change speed gear box speed ratio is corresponding with first, second velocity stage value, the second speed change
Case speed ratio is corresponding with the 3rd, fourth speed level value, the fast ratio of the 3rd change speed gear box and the 5th speed
Level value is corresponding, and the 4th change speed gear box speed ratio is corresponding with the 6th velocity stage value.
12. methods as claimed in claim 11, it is characterised in that include:
3 accelerator open degree setting values are provided with, 3 accelerator open degree setting values are to increase successively;
Wherein, First Speed level value is corresponding with the first accelerator open degree setting value, third speed level value
It is corresponding with the second accelerator open degree setting value;Secondth, four, five, six velocity stage values correspondence the 3rd is oily
Door aperture setting value, the 3rd accelerator open degree setting value are 100%.
13. methods as claimed in claim 10, it is characterised in that include:
8 velocity stage values and 6 change speed gear box speed ratios are provided with, 8 velocity stage values are for successively
Increase, 6 change speed gear boxes speed ratio is to increase successively;
Wherein, the first change speed gear box speed ratio is corresponding with First Speed level value, the second change speed gear box speed ratio
Value is corresponding with second, third velocity stage value, the fast ratio of the 3rd change speed gear box and fourth, fifth velocity stage
Value is corresponding, and the 4th change speed gear box speed ratio is corresponding with the 6th velocity stage value, the 5th change speed gear box speed ratio
Value is corresponding with the 6th velocity stage value, and the 4th change speed gear box speed ratio is corresponding with the 6th velocity stage value.
14. methods as claimed in claim 13, it is characterised in that include:
3 accelerator open degree setting values are provided with, 3 accelerator open degree setting values are to increase successively;
Second speed level value is corresponding with the first accelerator open degree setting value, fourth speed level value and second
Accelerator open degree setting value is corresponding, first and third, five, six, seven, eight velocity stage values correspondence the 3rd
Accelerator open degree setting value, the 3rd accelerator open degree setting value are 100%.
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