CN106882131A - Engineering truck and its switchover apparatus, control device, powershift method - Google Patents
Engineering truck and its switchover apparatus, control device, powershift method Download PDFInfo
- Publication number
- CN106882131A CN106882131A CN201510933361.6A CN201510933361A CN106882131A CN 106882131 A CN106882131 A CN 106882131A CN 201510933361 A CN201510933361 A CN 201510933361A CN 106882131 A CN106882131 A CN 106882131A
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- Prior art keywords
- neutral
- chassis
- neutral gear
- control device
- signal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
Abstract
The present invention relates to engineering truck technical field, a kind of engineering truck and its switchover apparatus, control device, powershift method are disclosed, control device includes receiver module, the neutral gear signal for receiving neutral switch；Memory module, prestores the neutral gear voltage threshold scope of at least two chassis neutral gear voltage value informations；Processing module, whether the magnitude of voltage of the neutral gear signal that judgement is received is located in the range of corresponding neutral gear voltage threshold, judging that corresponding chassis is in neutral state when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting, the neutral gear magnitude of voltage on the various known chassis of correspondence is prestored in memory module, multiple magnitudes of voltage may be constructed the neutral gear voltage threshold scope at least two chassis, whether the control device can interpolate that different chassis in neutral state, compatibility is good, switchover apparatus with the control device it is compatible good, simple structure, the practicality of the engineering truck with the switchover apparatus is good.
Description
Technical field
The present invention relates to engineering truck technical field, more particularly to a kind of engineering truck and its powershift dress
Put, control device, powershift method.
Background technology
In engineering truck technical field, engine in situ provides power for engineering truck, and gearbox passes power
Transfer case is delivered to, then each hydraulic pump or chassis back axle are sent to after transfer case switches, and engineering truck
Generally there are two kinds of dynamic regimes：Transport condition and job state, power passes to chassis under transport condition
Back axle, drives vehicle traveling, and power passes to each hydraulic pump of operating system etc. under job state.
Two kinds of switchings of dynamic regime are carried out under neutral state in the prior art, by state latching relay
Normally opened contact and interlock relay normally-closed contact be allowed to corresponding self-locking circuit be in obtain electricity condition, interlocking
Loop is in power failure state, and neutral state relay normally-closed contact is controlled using neutral switch, then controls certainly
The coil of lock relay and interlock relay makes traveling and job state change the ability only under neutral state
Carry out.Self-locking and the gear grinding of the solution caused by carelessness that be combined with each other of interlock circuit using both states
Damage the problem with engine frequent starting, it is not necessary to as long as stop paying out motivation just can be travelled under neutral state
The safety conversion of/job state.
The content of the invention
It is above-mentioned that relay can only carry out the judgement of neutral state to a kind of chassis of specification in the prior art,
But, because the neutral switch magnitude of voltage on different type chassis is different, it is impossible to enough meet different chassis space-times
The shelves positive often-have-electricity of relay, poor compatibility.
Therefore, the present invention provides a kind of engineering truck and its switchover apparatus, control device, powershift
Whether method, the control device can interpolate that different chassis in neutral state, and compatibility is good, with this
Compatible good, the simple structure of the switchover apparatus of control device, the engineering with the switchover apparatus
The practicality of vehicle is good.
To reach above-mentioned purpose, the present invention provides following technical scheme：
A kind of control device of engineering truck switchover apparatus, including：
Receiver module, the neutral gear signal for receiving neutral switch；
Memory module, prestores the neutral gear voltage threshold scope of at least two chassis neutral gear voltage value informations；
Whether processing module, the magnitude of voltage of the neutral gear signal that judgement is received is located at corresponding neutral gear voltage
In threshold range, when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
Judge that corresponding chassis is in neutral state.
In the control device of above-mentioned engineering truck switchover apparatus, processing module receives receiver module
Neutral gear signal magnitude of voltage it is right compared with its corresponding neutral gear voltage threshold scope prestored in memory module,
When the magnitude of voltage of neutral gear signal is in the range of the neutral gear voltage threshold of setting, judge that corresponding chassis is in sky
Shelves state, the neutral gear voltage threshold of the neutral gear magnitude of voltage due to prestoring chassis known at least two in memory module
Value scope, and then whether control device can be used for judging at least two different chassis in neutral state,
Suitable for different types of chassis, compatibility is good.
Therefore, whether above-mentioned control device can interpolate that different chassis in neutral state, and compatibility is good.
Preferably, after judging that chassis is in neutral state, the receiver module is additionally operable to reception traveling and opens
The operative signals that the running signal that sends of pass and/or operation switch send, and by the running signal and/or
Operative signals control engineering truck carries out driving dynamics switching or operation powershift, wherein, the traveling
Powershift is interlocked with the operation powershift.
Preferably, the receiver module be additionally operable to when chassis be in job state when receive auxiliary power output open
The auxiliary power output signal that pass sends, and engineering truck is controlled according to the auxiliary power output signal for receiving
Into auxiliary power output mode.
Preferably, the control device is programmable logic control unit.
A kind of switchover apparatus of engineering truck, including neutral switch, also provide including above-mentioned technical proposal
Any one control device, the control device is connected with the neutral switch signal.
Preferably, switchover apparatus also include traveling magnetic valve, operation magnetic valve, travel switch and work
Industry is switched, and the control device is opened with the traveling magnetic valve, operation magnetic valve, travel switch and operation
OFF signal is connected, and the control device is additionally operable to when judging that chassis is in neutral state by the traveling
Signal or operative signals control engineering truck carry out powershift.
Preferably, switchover apparatus also include pressing and can producing when the engineering truck is in job state
The auxiliary power output switch of auxiliary power output signal, the auxiliary power output switch and the control mould
Block signal is connected, and the control module is additionally operable to：
When the control module receives the auxiliary power output signal of auxiliary power output switch generation, control
Make the chassis into auxiliary power output mode.
Preferably, switchover apparatus also include device guidance panel, wherein, the auxiliary power output is opened
Close, operation switch and travel switch are arranged at described device guidance panel.
Preferably, described device guidance panel has the integral structure of encapsulation with the control device.
A kind of engineering truck, including chassis, any one powershift dress for also being provided including above-mentioned technical proposal
Put.
A kind of powershift method of any one engineering truck that above-mentioned technical proposal is provided, including：
Receive the neutral gear signal of the neutral switch of engineering vehicle chassis；
Whether the magnitude of voltage of the neutral gear signal that judgement is received is located in the range of corresponding neutral gear voltage threshold,
Judge corresponding bottom when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
Disk is in neutral state.
Preferably, powershift method also includes：
When judging that chassis is in neutral state：
Receive the running signal of travel switch and according to the running signal control traveling electricity of the travel switch for receiving
Magnet valve is acted so that engineering truck enters transport condition；Or,
The operative signals control operation electricity for receiving the operative signals of operation switch and being switched according to the operation for receiving
Magnet valve is acted so that engineering truck enters job state.
Preferably, powershift method also includes：
When the engineering truck is in job state, auxiliary power output switch, the auxiliary power are pressed
Output switch sends auxiliary power output signal to control device, and the control device is dynamic according to auxiliary is received
The chassis is controlled to enter auxiliary power output mode during power output signal.
Brief description of the drawings
A kind of structural representation of the switchover apparatus of engineering truck that Fig. 1 is provided for the present invention；
A kind of structural representation of the control device of the switchover apparatus of engineering truck that Fig. 2 is provided for the present invention
Figure；
A kind of device operating board structure of the switchover apparatus of engineering truck that Fig. 3 is provided for the present invention shows
It is intended to；
The flow chart of powershift in a kind of powershift method of engineering truck that Fig. 4 is provided for the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
As shown in Figure 1 and Figure 2, a kind of control device 8 of engineering truck switchover apparatus, including：
Receiver module 81, the neutral gear signal for receiving neutral switch 4；
Memory module 82, prestores the neutral gear voltage threshold model of the neutral gear voltage value information of at least two chassis 5
Enclose；
Whether processing module 83, the magnitude of voltage of the neutral gear signal that judgement is received is located at corresponding neutral gear electricity
In pressure threshold range, when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
When judge corresponding chassis 5 be in neutral state.
In the control device 8 of above-mentioned engineering truck switchover apparatus, processing module 83 is by receiver module
The magnitude of voltage of the 81 neutral gear signals for receiving and its corresponding neutral gear voltage threshold prestored in memory module 82
Scope, when the magnitude of voltage of neutral gear signal is in the range of the neutral gear voltage threshold of setting, judges that this is moved compared to right
Chassis 5 corresponding to power switching device is in neutral state, due to prestoring at least two in memory module 82
The neutral gear voltage threshold scope of known chassis 5 neutral gear voltage value information is planted, and then control device 8 can be applied
In at least two different chassis 5, and for judging at least two different chassis 5 whether in neutral gear shape
State, it is adaptable to different types of chassis 5, compatibility is good.
Therefore, whether above-mentioned control device 8 can interpolate that different chassis 5 in neutral state, compatibility
It is good.
In a kind of preferred embodiment, as shown in Figure 1 and Figure 2, receiver module 81 is additionally operable to when judgement
Chassis 5 is in after neutral state, receives running signal and/or operation switch 2 that travel switch 1 sends
The operative signals for sending, and driving dynamics are carried out by running signal and/or operative signals control engineering truck
Switching or operation powershift, wherein, driving dynamics switching or operation powershift are interlocked.
Receiver module 81 is judging chassis 5 before neutral state, if now due to the mistake of operator
Travel switch 1 and/or operation switch 2 are pressed in operation, and control device 8 is not carried out any operation, that is, neglect
The running signal or operative signals for slightly now receiving.
Receiver module 81 judge chassis 5 be in neutral state after, if now operating personnel first press
One of them of travel switch 1 and operation switch 2, after press another, then receiver module 81 is being followed by
The signal being subject to is defined, if pressing travel switch 1 and operation switch 2 simultaneously, receiver module 81 is not held
Any operation of row, that is, ignore now running signal and operative signals.Therefore, driving dynamics switching or operation are dynamic
Power switching interlocking refers to control device and can only perform driving dynamics switching or operation powershift, Bu Huitong
Both Shi Zhihang.
When chassis 5 is in neutral state, the traveling letter that processing module 83 is received according to receiver module 81
Number control engineering truck enters transport condition, when chassis 5 is in neutral state, the basis of processing module 83
The operative signals control engineering truck for receiving enters job state, to realize the powershift of engineering truck.
In a kind of preferred embodiment, as shown in Figure 1 and Figure 2, receiver module 81 is additionally operable to when chassis 5
Receive the auxiliary power output signal that auxiliary power output switch 3 sends during in job state, and according to connecing
The auxiliary power output signal control engineering truck for receiving enters auxiliary power output mode.When chassis 5 is in
During job state, the auxiliary power output signal that processing module 83 is received according to receiver module 81 controls work
Journey vehicle enters auxiliary power output mode.
In a kind of preferred embodiment, control device 8 is programmable logic control unit.According to each chassis 5
Neutral gear signal magnitude of voltage, neutral gear voltage threshold scope is preset in programmable logic control unit,
And the neutral gear voltage threshold scope of setting is pre-stored in programmable logic control unit, the neutral gear that will be received
Signal voltage value is compared with the neutral gear voltage threshold scope of setting, when neutral gear signal voltage value is in setting
During neutral gear voltage threshold scope, programmable logic control unit judges that corresponding chassis 5 is in neutral state.
As shown in figure 1, a kind of switchover apparatus of engineering truck, including neutral switch 4, also including upper
Any one control device 8 of technical scheme offer is stated, control device 8 is connected with the signal of neutral switch 4.
In above-mentioned switchover apparatus, neutral switch 4 sends neutral gear signal when pressing to control module,
The magnitude of voltage of the neutral gear signal that control module will be received is right compared with the neutral gear voltage threshold scope of setting, when
When the magnitude of voltage of neutral gear signal is in the range of the neutral gear voltage threshold of setting, judge that corresponding chassis 5 is in sky
Shelves state, due to only whether just can interpolate that different chassis 5 in neutral state by control device 8,
Compatibility it is good, therefore the switchover apparatus with the control device 8 compatible good, simple structure.
In a kind of preferred embodiment, as shown in figure 1, switchover apparatus also include traveling magnetic valve 7,
Operation magnetic valve 6, travel switch 1 and operation switch 2, control device 8 and traveling magnetic valve 7, operation
Magnetic valve 6, travel switch 1 and operation switch the connection of 2 signals, and control device 8 is additionally operable to when judgement
Control engineering truck to enter action edge by running signal or operative signals when chassis 5 is in neutral state to cut
Change.
When chassis 5 is in neutral state, travel switch 1 sends running signal when pressing to control module,
Control module controls traveling magnetic valve 7 to obtain electric, operation magnetic valve 6 now in the running signal for receiving
Dead electricity, engineering truck enters driving mode；When chassis 5 is in neutral state, operation switch 2 is being pressed
When to control module send operative signals, control module root is in the operative signals time control manufacturing magnetic valve for receiving
6 obtain electric, and the dead electricity of traveling magnetic valve 7 now, engineering truck enters work pattern；Neutral switch 4, OK
Switch 1, operation switch 2 is sailed to be connected with control module signal, and control module and traveling magnetic valve 7, work
The signal of industry magnetic valve 6 is connected, therefore neutral switch 4, travel switch 1, operation switch 2 need by control
Molding block to realizing the control of traveling magnetic valve 7, operation magnetic valve 6, and then can be realized to engineering truck
Powershift, electric elements are less compared with the switching mode in background technology, contact is few, simple structure.
In a kind of preferred embodiment, as shown in figure 1, switchover apparatus also include being in when engineering truck
Being pressed during job state can produce the auxiliary power output switch 3 of auxiliary power output signal, and auxiliary power is defeated
Go out switch 3 to be connected with control module signal, control module is additionally operable to：
When control module receives the auxiliary power output signal of the generation of auxiliary power output switch 3, control
Chassis 5 enters auxiliary power output mode.
Auxiliary power output signal, control dress are produced when auxiliary power output switch 3 is pressed under job state
Put 8 controls chassis 5 to enter auxiliary power output services pattern after auxiliary power output signal is received, because
This, only under job state, when auxiliary power output switch 3 is pressed, it is dynamic that chassis 5 could enter auxiliary
Power output mode, to ensure that the normal of engineering truck is used under job state.
In a kind of preferred embodiment, as shown in figure 3, switchover apparatus also include device guidance panel,
Wherein, auxiliary power output switch 3, operation switch 2 and travel switch 1 are arranged at device guidance panel.
Auxiliary power output switch 3, operation switch 2 and travel switch 1 are arranged on same device operating surface
On plate 9, auxiliary power output is combined together with powershift, easy to operate, simple structure.
On the basis of device guidance panel 9, specifically, device guidance panel 9 has with control device 8
The integral structure of encapsulation, device guidance panel 9 and the overall package of control device 8, integrated, circuit
Succinctly, trouble point is few compared with the powershift mode of prior art, and reliability is high.
A kind of engineering truck, including chassis 5, any one powershift for also being provided including above-mentioned technical proposal
Device, any one switchover apparatus that above-mentioned technical proposal is provided it is compatible good, and realize powershift
Electric components are less, simple structure, therefore, the high working efficiency of engineering truck, practicality is good.
As shown in figure 4, a kind of powershift method of any one engineering truck that above-mentioned technical proposal is provided,
Including：
Step S101, receives the neutral gear signal of the neutral switch 4 of engineering vehicle chassis 5；
Whether step S102, the magnitude of voltage of the neutral gear signal that judgement is received is located at corresponding neutral gear voltage threshold
In the range of, judging when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
Corresponding chassis 5 is in neutral state.
In the changing method of above-mentioned engineering truck switchover apparatus, chassis 5 is judged by control device 8
Whether neutral state is in, detailed process includes：By step S101, the engineering vehicle chassis of control device 8
The neutral gear signal of 5 neutral switch 4；Then step S102 is performed, judges chassis 5 whether in neutral gear shape
State, corresponding bottom is judged when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
Disk 5 is in neutral state, because whether control module 8 can interpolate that different chassis 5 in neutral state,
Compatibility is good, and has compatible good, the simple structure of the switchover apparatus of the control device 8, therefore,
Whether different chassis 5 can interpolate that in neutral state by the changing method, compatibility is good, in addition,
The method judges the simple in circuits of neutral state, and reliability is high.
In a kind of preferred embodiment, powershift method also includes：
When judging that chassis 5 is in neutral state：
Receive the running signal of travel switch 1 and traveling is controlled according to the running signal of the travel switch 1 for receiving
Magnetic valve 7 is acted so that engineering truck enters transport condition；Or,
The operative signals of operation switch 2 will be received and control to make according to the operative signals of the operation switch 2 for receiving
Industry magnetic valve 6 is acted so that engineering truck enters job state.
When chassis 5 is in neutral state, and when control device 8 receives running signal, engineering truck
Into transport condition；When chassis 5 is in neutral state, and when control device 8 receives operative signals,
Engineering truck enters job state.
In a kind of preferred embodiment, powershift method also includes：
When engineering truck is in job state, auxiliary power output switch 3 is pressed, auxiliary power output is opened
Close 3 and send auxiliary power output signal to control device 8, control device 8 is defeated according to auxiliary power is received
Control chassis 5 enters auxiliary power output mode when going out signal.Action edge can be entered under neutral state to cut
Change, under job state, pressing the chassis 5 of auxiliary power output switch 3 can export into auxiliary power
Pattern.
Obviously, those skilled in the art can carry out various changes and modification without de- to the embodiment of the present invention
From the spirit and scope of the present invention.So, if these modifications of the invention and modification belong to right of the present invention
It is required that and its within the scope of equivalent technologies, then the present invention be also intended to comprising these change and modification.
Claims (13)
1. a kind of control device of engineering truck switchover apparatus, it is characterised in that including：
Receiver module, the neutral gear signal for receiving neutral switch；
Memory module, prestores the neutral gear voltage threshold scope of at least two chassis neutral gear voltage value informations；
Whether processing module, the magnitude of voltage of the neutral gear signal that judgement is received is located at corresponding neutral gear voltage
In threshold range, when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
Judge that corresponding chassis is in neutral state.
2. control device according to claim 1, it is characterised in that when judging that chassis is in neutral gear
After state, the receiver module is additionally operable to receive running signal and/or operation switch hair that travel switch sends
The operative signals for going out, and driving dynamics are carried out by the running signal and/or operative signals control engineering truck
Switching or operation powershift, wherein, the driving dynamics switching is interlocked with the operation powershift.
3. control device according to claim 1, it is characterised in that the receiver module is additionally operable to
The auxiliary power output signal that auxiliary power output switch sends, and root are received when chassis is in job state
Enter auxiliary power output mode according to the auxiliary power output signal control engineering truck for receiving.
4. control device according to claim 1, it is characterised in that the control device is can to compile
Journey logic control element.
5. a kind of switchover apparatus of engineering truck, including neutral switch, it is characterised in that also include
Control device as described in claim any one of 1-4, the control device and the neutral switch signal phase
Even.
6. switchover apparatus according to claim 5, it is characterised in that also including traveling electromagnetism
Valve, operation magnetic valve, travel switch and operation switch, the control device with it is described traveling magnetic valve,
Operation magnetic valve, travel switch and operation switching signal are connected, and the control device is additionally operable to when judgement
Engineering truck is controlled to enter action edge by the running signal or operative signals when chassis is in neutral state
Switching.
7. switchover apparatus according to claim 6, it is characterised in that also including when the work
Journey vehicle presses the auxiliary power output switch that can produce auxiliary power output signal, institute when being in job state
State auxiliary power output switch to be connected with the control module signal, the control module is additionally operable to：
When the control module receives the auxiliary power output signal of auxiliary power output switch generation, control
Make the chassis into auxiliary power output mode.
8. switchover apparatus according to claim 7, it is characterised in that also operated including device
Panel, wherein, the auxiliary power output switch, operation switch and travel switch are arranged at described device
Guidance panel.
9. switchover apparatus according to claim 8, it is characterised in that described device operating surface
Plate has the integral structure of encapsulation with the control device.
10. a kind of engineering truck, including chassis, it is characterised in that also any including such as claim 5-9
Switchover apparatus described in.
A kind of 11. powershift methods of engineering truck as claimed in claim 10, it is characterised in that
Including：
Receive the neutral gear signal of the neutral switch of engineering vehicle chassis；
Whether the magnitude of voltage of the neutral gear signal that judgement is received is located in the range of corresponding neutral gear voltage threshold,
Judge corresponding bottom when the magnitude of voltage of the neutral gear signal for receiving is in the range of the neutral gear voltage threshold of setting
Disk is in neutral state.
12. powershift methods according to claim 11, it is characterised in that also include：
When judging that chassis is in neutral state：
Receive the running signal of travel switch and according to the running signal control traveling electricity of the travel switch for receiving
Magnet valve is acted so that engineering truck enters transport condition；Or,
The operative signals control operation electricity for receiving the operative signals of operation switch and being switched according to the operation for receiving
Magnet valve is acted so that engineering truck enters job state.
13. powershift methods according to claim 12, it is characterised in that also include：
When the engineering truck is in job state, auxiliary power output switch, the auxiliary power are pressed
Output switch sends auxiliary power output signal to control device, and the control device is dynamic according to auxiliary is received
The chassis is controlled to enter auxiliary power output mode during power output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933361.6A CN106882131B (en) | 2015-12-15 | 2015-12-15 | Engineering truck and its switchover apparatus, control device, powershift method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933361.6A CN106882131B (en) | 2015-12-15 | 2015-12-15 | Engineering truck and its switchover apparatus, control device, powershift method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106882131A true CN106882131A (en) | 2017-06-23 |
| CN106882131B CN106882131B (en) | 2019-06-04 |
Family
ID=59173598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933361.6A Active CN106882131B (en) | 2015-12-15 | 2015-12-15 | Engineering truck and its switchover apparatus, control device, powershift method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106882131B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111706082A (en) * | 2020-05-20 | 2020-09-25 | 长沙方译智能科技有限公司 | Engineering vehicle intelligent control system and device with power switching protection function |
| CN114233487A (en) * | 2021-11-23 | 2022-03-25 | 湖南道依茨动力有限公司 | Engine control method and device, readable storage medium and work vehicle |
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| CN203882123U (en) * | 2014-06-19 | 2014-10-15 | 长沙橡树自动化科技有限公司 | Universal interface circuit suitable for pump truck chassis system |
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| CN201835314U (en) * | 2010-03-11 | 2011-05-18 | 长沙中联重工科技发展股份有限公司 | Power switching control device for engineering truck |
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| CN114233487A (en) * | 2021-11-23 | 2022-03-25 | 湖南道依茨动力有限公司 | Engine control method and device, readable storage medium and work vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106882131B (en) | 2019-06-04 |
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