CN109404143A - A kind of land leveller double power curve selection methods automatically - Google Patents
A kind of land leveller double power curve selection methods automatically Download PDFInfo
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- CN109404143A CN109404143A CN201811367743.7A CN201811367743A CN109404143A CN 109404143 A CN109404143 A CN 109404143A CN 201811367743 A CN201811367743 A CN 201811367743A CN 109404143 A CN109404143 A CN 109404143A
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- Prior art keywords
- signal
- power curve
- state
- power
- engine
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Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/2066—Control of propulsion units of the type combustion engines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Transmission Device (AREA)
Abstract
The present invention provides a kind of automatic double power curve selection methods of land leveller, comprising: sets the state of power curve, the state of the power curve is divided into dynamic mode, energy-saving mode and automatic mode；When the state of the power curve is in dynamic mode, vacant state is set by engine power selection signal；When the state of the power curve is in energy-saving mode, high level is set by engine power selection signal；When the state of the power curve is in automatic mode, engine gear signal is subjected to logic controlled processing, engine power selection signal is arranged according to processing result；The present invention can be completed the power curve under automatic mode and manual mode using the state of logical operation cooperation power curve and select, and the present invention needs not rely on controller, optimizes system structure, save cost.
Description
Technical field
The present invention relates to engineering machinery power selection methods, and in particular to a kind of automatic double power curve choosings of land leveller
Selection method.
Background technique
The power selection circuitry of land leveller is realized with a switch at present, after lower switch, gives engine ECM power curve
Selection signal input terminal inputs the voltage signal of a 24V, and engine enters energy-saving power curve motion state.Disconnection is opened
It closes, engine ECM power curve selection signal input terminal is hanging, and engine is in aerodynamic power curve.Select energy-saving power shape
State needs manually, not playing the fuel-efficient advantage of energy-saving power curve in time, forget to close the switch and also result in need Gao Gong
When rate, land leveller is short of power, cannot be according to the automatic switching engine power curve of gear.
Such as the Chinese invention patent " land leveller control device, method and land leveller " of Publication No. CN107882090A,
It include: multi-state selection switch, gearbox shift control module, controller module and electronic engine control module；Controller module
It receives the control model information that multi-state selection switch is sent and the gear information that gearbox shift control module is sent and carries out
Coding, electronic engine control module determine power curve corresponding with encoded information, and based on the defeated of power curve control engine
Power out.
By the above content it can be found that the core of land leveller power curve selection is to utilize controller in the prior art
The information of multi-state selection switch and gearbox shift control module is received, is then carried out according to switch state, gearbox gear
Power coding transmission is to electronic engine control module；But the above method more relies on controller, and it is at high cost that structure is complicated, is unfavorable for pushing away
Extensively.
Summary of the invention
The purpose of the present invention is to provide a kind of land leveller double power curve selection methods automatically, it is intended to solve the prior art
The problem of middle power curve selection and dependence control device.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:
The present invention provides a kind of land leveller double power curve selection methods automatically, comprising:
The state of power curve is set, the state of the power curve is divided into dynamic mode, energy-saving mode and automatic mode；
When the state of the power curve is in dynamic mode, hanging shape is set by engine power selection signal
State；
When the state of the power curve is in energy-saving mode, high level is set by engine power selection signal；
When the state of the power curve is in automatic mode, engine gear signal is subjected to logic controlled processing,
According to processing result, engine power selection signal is set.
Preferably, the engine gear signal carries out the step of logic controlled processing and includes:
Engine gear is encoded, three road signals are exported after coding；
Three road signals are received, anti-interference process is carried out to three road signals；
Three road signal is divided into the first signal, second signal and third signal；
Logic or operation are carried out to second signal and third signal, when operation result is high level, the first signal is set
It is set to engine power selection signal；When operation result is low level, hanging shape is set by engine power selection signal
State.
Advantages of the present invention:
1. the present invention can be completed under automatic mode and manual mode using the state of logical operation cooperation power curve
Power curve selection.
2. the present invention needs not rely on controller, system structure is optimized, saves cost.
Detailed description of the invention
Fig. 1 is the flow chart according to the land leveller of the embodiment of the present invention double power curve selection methods automatically；
Fig. 2 is the structural schematic diagram according to the land leveller of the embodiment of the present invention double power curve selection devices automatically.
Specific embodiment
In order to make the purpose of the present invention, technical solution and advantage are more clearly understood, and are passed through below in conjunction with attached drawing specific real
Applying example, the present invention is described in more detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and
It is not used in the restriction present invention.
A kind of land leveller double power curve selection methods automatically, institute as shown in Figure 1, Figure 2 are provided in an embodiment of the present invention
Show, comprising steps of
101, the state of power curve is set；The state of the power curve is divided into dynamic mode, energy-saving mode and automatic
Mode；Using the state of power selector switch setting power curve, the power selector switch can be DPTT double-pole triple throw switch, function
The state of rate selection switch respectively corresponds dynamic mode, energy-saving mode and automatic mode.
102, when the state of the power curve is in dynamic mode, set hanging for engine power selection signal
State；At this point, engine is in aerodynamic power curve；As shown in Fig. 2, when power selector switch is set as dynamic mode, function
No. 3 contacts of rate selection switch are connected with No. 7 contacts, and engine power selection signal is in i.e. non-low level nor high level
Vacant state, No. 4 contacts of power selector switch are connected with No. 10 contacts, at this point, No. 4 pin floating of logic controlled device,
Inside is generated without circuit, exports No. 5 pin no signals of logic controlled device；Therefore, engine power selection signal is outstanding
Dummy status, engine are in aerodynamic power curve.
103, when the state of the power curve is in energy-saving mode, high electricity is set by engine power selection signal
It is flat；At this point, engine enters energy-saving power curve；When power selector switch is set as energy-saving mode, the 3 of power selector switch
Number contact is connected with No. 6 contacts, connects to power supply engine power selection signal, is equivalent to setting engine power and is selected letter
It number is high level, No. 4 contacts of power selector switch are connected with No. 9 contacts, at this point, No. 4 of logic controlled device are equivalent to and draw
Foot is hanging, internal to generate without circuit, exports No. 5 pin no signals of logic controlled device；Therefore, engine power selection letter
It number is high level, engine enters energy-saving power curve.
104, when the state of the power curve is in automatic mode, by engine power selection signal carry out logic by
Control processing；When power selector switch is set as automatic mode, No. 3 contacts of power selector switch are connected with No. 5 contacts, power
It selects No. 4 contacts of switch to connect with No. 8 contacts, logic controlled device is made to generate circuit to make No. 6 of logic controlled device
Contact is connected with No. 8 contacts, and engine power selection signal is determined by the output of No. 5 pins of logic controlled device.
Logic controlled processing step described in step 104 is as follows:
201, engine gear is encoded, three road signals is exported after coding；
Gear selector encodes engine gear, as shown in table 1.
Table 1
In table, "●" indicates that pin exports high level signal, such as: when being kept off in forward gear 1, No. 1 pin of gear selector,
No. 2 pins and No. 3 pins export high level signal；When being kept off in retreating gear 1, No. 1 pin and No. 2 pin output high level letters
Number, No. 3 pins export low level signal；After gear selector encodes engine gear, from No. 1 pin, No. 2 pins and
No. 3 pins export three road signals.
202, three road signals are received, anti-interference process is carried out to three road signals；
No. 1 pin of isolating device, No. 2 pins and No. 3 pins it is defeated respectively with No. 1 pin of gear selector, No. 2 pins
It is connected with No. 3 pins, for receiving three road signals, anti-interference process is carried out to three road signals, is prevented between each road signal
It influences each other.
203, three road signal is divided into the first signal, second signal and third signal；
Using the signal of No. 1 pin of gear selector as the first signal, the signal of No. 2 pins of gear selector is as second
Signal, the signal of No. 3 pins of gear selector is as third signal；Three road signals are transmitted to logic controlled dress through isolating device
It sets.
204, logic or operation are carried out to second signal and third signal, when operation result is high level, by the first letter
Number it is set as engine power selection signal；When operation result is low level, set low for engine power selection signal
Level；Logic controlled device carries out logic or operation to second signal and third signal, when in second signal and third signal
There are No. 4 pins of signal and logic controlled device to be grounded (automatic mode, i.e. power selector switch No. 4 contact and 8 for meaning one
When number contact is connected) when generating circuit, No. 6 contacts of logic controlled device are connected with No. 8 contacts；When no circuit generates, patrol
No. 6 contacts and No. 7 contacts for collecting controlled device are connected, No. 5 pin no signals output of logic controlled device；Therefore, such as: gear
Selector is in 1 grade of drive shift, 2 grades of drive shift, 3 grades of drive shift and 1 grade of reverse drive gear, according to coding and logic or operation,
There is circuit generation under automatic mode, at this point, No. 6 contacts of logic controlled device are connected with No. 8 contacts, the first signal (gear
The signal of No. 1 pin of selector) it is arranged to engine power selection signal；Gear selector is in other gears, automatic
Under mode, according to coding and logic or operation, circuit will not be generated, engine power selection signal is in no signal input
Vacant state；Under non-automatic mode (manual mode and energy-saving mode), according to coding and logic or operation, will not it produce
Raw circuit, at this point, No. 6 contacts of logic controlled device are connected with No. 7 contacts, No. 5 pin no signals of logic controlled device are defeated
Out, engine power selection signal is not determined and the state of the power curve by power selector switch setting by logic controlled device
It determines.
It is thus described several aspects of at least one embodiment of this invention, it will be understood that those skilled in the art
For be easy to carry out various changes, modification and improvement.This changes, modifications and improvement are intended in the spirit and scope of the present invention
It is interior.
Claims (2)
1. a kind of land leveller double power curve selection methods automatically characterized by comprising
The state of power curve is set, the state of the power curve is divided into dynamic mode, energy-saving mode and automatic mode；
When the state of the power curve is in dynamic mode, vacant state is set by engine power selection signal；
When the state of the power curve is in energy-saving mode, high level is set by engine power selection signal；
When the state of the power curve is in automatic mode, engine gear signal is subjected to logic controlled processing, according to
Engine power selection signal is arranged in processing result.
2. the method according to claim 1, wherein the engine gear signal carries out logic controlled processing
Step includes:
Engine gear is encoded, three road signals are exported after coding；
Three road signals are received, anti-interference process is carried out to three road signals；
Three road signal is divided into the first signal, second signal and third signal；
Logic or operation are carried out to second signal and third signal, when operation result is high level, set the first signal to
Engine power selection signal；When operation result is low level, vacant state is set by engine power selection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367743.7A CN109404143B (en) | 2018-11-16 | 2018-11-16 | Automatic double-power curve selection method for land leveler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367743.7A CN109404143B (en) | 2018-11-16 | 2018-11-16 | Automatic double-power curve selection method for land leveler |
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| Publication Number | Publication Date |
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| CN109404143A true CN109404143A (en) | 2019-03-01 |
| CN109404143B CN109404143B (en) | 2021-07-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310101A (en) * | 2005-12-22 | 2008-11-19 | 株式会社小松制作所 | Engine control device for working vehicle |
| US7621127B2 (en) * | 2007-04-13 | 2009-11-24 | Honda Motor Co., Ltd. | Method for manually controlling a turbocharger |
| CN101976052A (en) * | 2010-11-05 | 2011-02-16 | 天津工业大学 | Logic control device |
| CN102128093A (en) * | 2010-01-19 | 2011-07-20 | 井关农机株式会社 | Engine control device for tractor |
| CN103334843A (en) * | 2013-06-27 | 2013-10-02 | 山东临工工程机械有限公司 | Land lever variable-power control system |
-
2018
- 2018-11-16 CN CN201811367743.7A patent/CN109404143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310101A (en) * | 2005-12-22 | 2008-11-19 | 株式会社小松制作所 | Engine control device for working vehicle |
| US7621127B2 (en) * | 2007-04-13 | 2009-11-24 | Honda Motor Co., Ltd. | Method for manually controlling a turbocharger |
| CN102128093A (en) * | 2010-01-19 | 2011-07-20 | 井关农机株式会社 | Engine control device for tractor |
| CN101976052A (en) * | 2010-11-05 | 2011-02-16 | 天津工业大学 | Logic control device |
| CN103334843A (en) * | 2013-06-27 | 2013-10-02 | 山东临工工程机械有限公司 | Land lever variable-power control system |
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| CN109404143B (en) | 2021-07-02 |
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