CN106090202A - The electronic control system of a kind of full-automatic speed change box and its implementation - Google Patents
The electronic control system of a kind of full-automatic speed change box and its implementation Download PDFInfo
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- CN106090202A CN106090202A CN201610775638.1A CN201610775638A CN106090202A CN 106090202 A CN106090202 A CN 106090202A CN 201610775638 A CN201610775638 A CN 201610775638A CN 106090202 A CN106090202 A CN 106090202A
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- gear
- rotating speed
- shelves
- control system
- completing
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Classifications
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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
- F16H59/02—Selector apparatus
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
-
- 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
- F16H2306/00—Shifting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses: the electronic control system of a kind of full-automatic speed change box, including push-button unit, gear setup unit, current gear display unit, rotating speed display unit, gear shift interval display unit, gear shift interval regulation unit, system uses 12V or 24V unidirectional current, vehicular power-bottle power.Have the advantage that large tractor and medium-sized or above carrying cart can realize fluid drive, easy to operate, it is not susceptible to out of supply, neutral gear, situation that gear shift is changed to enter, slipped by slope.
Description
Technical field
The present invention relates to electronic control system and its implementation of a kind of full-automatic speed change box, especially relate to a kind of answering
For large tractor and the electronic control system of the full-automatic speed change box of medium-sized or above carrying cart and its implementation, belong to from
Dynamic control technical field.
Background technology
Large tractor and medium-sized or above carrying cart have become the main traffic means of transport in China rural area, are to be suitable for China
The short-distance vehicle of use condition, large tractor and medium-sized or above carrying cart alleviate the burden of peasant's transport.
At present, the gear shift of large tractor and medium-sized or above carrying cart can only use the mode of hand shift, hand shift
Mode have the disadvantage in that
1, hand shift needs to operate frequently gear shift, troublesome poeration；
2, the car of hand shift is susceptible to slip by slope；
3, hand shift easily occurs that situation about not entering is changed in gear shift；
4, easily there is out of supply, the situation of neutral gear in hand shift；
5, need during hand shift descending to carry out manual shift, it is impossible to gear shift in time is regulated the speed.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned deficiency, it is provided that the Electronic Control system of a kind of full-automatic speed change box
System and its implementation, have large tractor and medium-sized or above carrying cart can realize fluid drive, easy to operate, is not susceptible to
The situation advantage that out of supply, neutral gear, gear shift are changed to enter, slipped by slope.
For solve problem above, the present invention by the following technical solutions: the electronic control system of a kind of full-automatic speed change box,
Including push-button unit, gear setup unit, current gear display unit, rotating speed display unit, gear shift interval display unit, gearshift
Spacing adjustment unit, system uses 12V or 24V unidirectional current, vehicular power-bottle powers.
A kind of implementation method of the electronic control system of full-automatic speed change box, described control method comprises the following steps:
Step S102, sets high tap position, and in control system, gear includes 1-8 shelves, R shelves, and R shelves, for reversing gear, are pressed in 1-8 shelves and appointed
Anticipate one grade or R shelves, set high tap position.
Further, described control method is further comprising the steps of:
Step S103, whether monitoring rotating speed ZS is zero；Step S104, it is judged that whether automobile steps on the gas.
Further, described control method is further comprising the steps of:
Step S108, whether monitoring rotating speed reaches rotating speed of shifting gears, and becomes one grade when rotating speed rises to an interval gear；
Step S109, gear shift, monitor tachometer value ZS≤r × N when rotating speed meets r × (N-1) ＜, wherein N is the gear of 1-8 shelves,
Then it is changed to N shelves.
Further, described control method is further comprising the steps of:
Step S111, it is judged that whether gear is zero；
Step S112, it is judged that gear is the most identical with set position；
Step S114, whether rotating speed is less than the minimum speed of set position.
Further, in the implementation method of described electronic control system, gear shifting action step includes:
Step S202, detects rotating speed；
Step S203, it is judged that whether rotating speed mates gear；
Step S204, tachometer value ＞ r × (N-1), triggers signal so that electromagnetic valve A obtains electric.
Further, in the implementation method of described electronic control system, gear shifting action step also includes:
Step S205, it is judged that whether metal sensor JS has signal；Step S206, it is judged that whether air cylinder detecting sensor QS has letter
Number.
Further, in the implementation method of described electronic control system, gear shifting action step also includes:
Step S207, disconnects current gear electromagnetic valve；
Step S208, connects the electromagnetic valve of current rotating speed corresponding 1-8 shelves；
Step S210, electromagnetic valve A power-off, return after completing and perform step S202.
Further, described control method comprises the following steps:
Start from step S101, after completing, perform step S102；
Step S102, sets high tap position, and in control system, gear includes 1-8 shelves, R shelves, and R shelves, for reversing gear, are pressed in 1-8 shelves and appointed
Anticipating one grade or R shelves, set high tap position, such as set 5 and work as, follow-up operation can only run to 5 grades, performs step after completing
S103；
Step S103, whether monitoring rotating speed ZS is zero, if monitoring rotating speed ZS is zero, performs step S104, otherwise performs step
S107；
Step S104, it is judged that whether automobile steps on the gas, if automobile is not stepped on the gas, then performs step S106, otherwise performs step
S105；
Step S106, system finishing runs；
Step S105, carrying cart is hung 1 grade or R shelves, is returned and perform step S103 after completing；
Step S107, carries out rotation speed monitoring, performs step S108 after completing；
Step S108, whether monitoring rotating speed reaches rotating speed of shifting gears, and becomes one grade when rotating speed rises to an interval gear, such as passes through
Gear shift interval regulation unit setting speed every r gear changes one grade, if reaching rotating speed of shifting gears, performing step S109, otherwise returning
Perform step S107；
Step S109, gear shift, monitor tachometer value ZS≤r × N when rotating speed meets r × (N-1) ＜, wherein N is the gear of 1-8 shelves,
Then be changed to N shelves, such as, after rotating speed increases to 1+r from 1, change speed gear box is changed to 2 grades from 1 grade, performs step S110 after completing；
Step S110, carries out gear judgement, performs step S111 and step S112 after completing；
Step S111, it is judged that whether gear is zero, if gear is zero, then returns and performs step S103, if gear is not zero, then return
Receipt row step S107；
Step S112, it is judged that gear is the most identical with set position, if gear is identical with set position, then performs step S113,
Otherwise return and perform step S107；
Step S113, detects rotating speed, performs step S114 after completing；
Step S114, whether rotating speed is less than the minimum speed of set position, if rotating speed is less than the minimum speed of set position, then
Return and perform step S109, otherwise return and perform step S113.
Further, in the implementation method of described electronic control system, gear shifting action step is as follows:
Gear shifting action starts from step S201, performs step S202 after completing；
Step S202, detects rotating speed, performs step S203 after completing；
Step S203, it is judged that whether rotating speed mates gear, if rotating speed coupling gear, then returns and performs step S202；Otherwise perform
Step S204；
Step S204, tachometer value ＞ r × (N-1), trigger signal so that electromagnetic valve A obtains electric, and cylinder stretches out, electromagnetic valve A controls 1
Shelves gear, performs step S205 after completing；
Step S205, it is judged that whether metal sensor JS has signal, if metal sensor JS has signal, then performs step S206,
Disconnect N-1 shelves electromagnetic valve, otherwise return and perform step S204；
Step S206, it is judged that whether air cylinder detecting sensor QS has signal, if air cylinder detecting sensor QS has signal, then performs step
Rapid S207, otherwise performs step S208.
Step S207, disconnects current gear electromagnetic valve, returns and perform step S206 after completing；
Step S208, connects the electromagnetic valve of current rotating speed corresponding 1-8 shelves, performs step S209 after completing；
Step S209, it is judged that whether air cylinder detecting sensor QS has signal, if air cylinder detecting sensor QS no signal, then returns and holds
Row step S208, otherwise performs step S210；
Step S210, electromagnetic valve A power-off, return after completing and perform step S202.
The present invention uses above technical scheme, with prior art ratio, has the advantage that
1, the control system of the present invention realizes one grade of gear by the self shifter of Non-follow control to Throttle Opening Control, easy and simple to handle, with
Time be used as the mode of manual shift.
2, after the driving system of car quits work, detection rotating speed can be by being coasted to 0, after rotating speed is to 0,
The whole power-off of electromagnetic valve of one to multiple position shelves.
3, when rotating speed is not 0, system is the most out of supply, is constantly in duty, it is to avoid out of supply；After rotating speed is 0,
Driving system starts will be from the beginning of neutral gear, it is to avoid slip by slope.
4, the speed that rises or falls of monitoring rotating speed will not be faster than the gear speed being manually set, and shift intervals rotating speed can
Regulated by knob.
5, shut down, button is still in last time operation range after power-off, and after whole power-off, gear is neutral gear.
6, car descending is without manual shift, can gear shift voluntarily.
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the electronic control system block diagram of full-automatic speed change box；
Fig. 2 is the flow chart of the implementation method of the electronic control system of full-automatic speed change box；
Fig. 3 is the flow chart of gear shifting action implementation method.
Detailed description of the invention
Embodiment, as shown in Figure 1, Figure 2 and Figure 3, the electronic control system of a kind of full-automatic speed change box, including button list
Unit, gear setup unit, current gear display unit, rotating speed display unit, gear shift interval display unit, gear shift interval regulation list
Unit, system uses 12V or 24V unidirectional current, vehicular power-bottle powers.
The implementation method of the electronic control system of described full-automatic speed change box comprises the following steps:
Start from step S101, after completing, perform step S102；
Step S102, sets high tap position, and in control system, gear includes 1-8 shelves, R shelves, and R shelves, for reversing gear, are pressed in 1-8 shelves and appointed
Anticipating one grade or R shelves, set high tap position, such as set 5 and work as, follow-up operation can only run to 5 grades, performs step after completing
S103；
Step S103, whether monitoring rotating speed ZS is zero, if monitoring rotating speed ZS is zero, performs step S104, otherwise performs step
S107；
Step S104, it is judged that whether automobile steps on the gas, if automobile is not stepped on the gas, then performs step S106, otherwise performs step
S105；
Step S106, system finishing runs；
Step S105, carrying cart is hung 1 grade or R shelves, is returned and perform step S103 after completing.
Step S107, carries out rotation speed monitoring, performs step S108 after completing；
Step S108, whether monitoring rotating speed reaches rotating speed of shifting gears, and becomes one grade when rotating speed rises to an interval gear, such as passes through
Gear shift interval regulation unit setting speed every r gear changes one grade, if reaching rotating speed of shifting gears, performing step S109, otherwise returning
Perform step S107；
Step S109, gear shift, monitor tachometer value ZS≤r × N when rotating speed meets r × (N-1) ＜, wherein N is the gear of 1-8 shelves,
Then be changed to N shelves, such as, after rotating speed increases to 1+r from 1, change speed gear box is changed to 2 grades from 1 grade, performs step S110 after completing；
Step S110, carries out gear judgement, performs step S111 and step S112 after completing；
Step S111, it is judged that whether gear is zero, if gear is zero, then returns and performs step S103, if gear is not zero, then return
Receipt row step S107；
Step S112, it is judged that gear is the most identical with set position, if gear is identical with set position, then performs step S113,
Otherwise return and perform step S107；
Step S113, detects rotating speed, performs step S114 after completing；
Step S114, whether rotating speed is less than the minimum speed of set position, if rotating speed is less than the minimum speed of set position, then
Return and perform step S109, otherwise return and perform step S113.
In the implementation method of described electronic control system, gear shifting action step is as follows:
Gear shifting action starts from step S201, performs step S202 after completing；
Step S202, detects rotating speed, performs step S203 after completing；
Step S203, it is judged that whether rotating speed mates gear, if rotating speed coupling gear, then returns and performs step S202；Otherwise perform
Step S204；
Step S204, tachometer value ＞ r × (N-1), trigger signal so that electromagnetic valve A obtains electric, cylinder stretches out, and electromagnetic valve A controls 1
Shelves gear, performs step S205 after completing；
Step S205, it is judged that whether metal sensor JS has signal, if metal sensor JS has signal, then performs step S206,
Disconnect N-1 shelves electromagnetic valve, otherwise return and perform step S204；
Step S206, it is judged that whether air cylinder detecting sensor QS has signal, if air cylinder detecting sensor QS has signal, then performs step
Rapid S207, otherwise performs step S208.
Step S207, disconnects current gear electromagnetic valve, returns and perform step S206 after completing；
Step S208, connects the electromagnetic valve of current rotating speed corresponding 1-8 shelves, performs step S209 after completing；
Step S209, it is judged that whether air cylinder detecting sensor QS has signal, if air cylinder detecting sensor QS no signal, then returns and holds
Row step S208, otherwise performs step S210；
Step S210, electromagnetic valve A power-off, return after completing and perform step S202.
Shift-down action is similar to shift-up action, after rotating speed reduces, and tachometer value≤r × (N-1), then become N-1 from N shelves
Shelves, the final electromagnetic valve N that disconnects, connection N-1 electromagnetic valve.
The electronic control system of this full-automatic speed change box first has to set high tap position X, when monitoring rotating speed ZS ＞ r ×
During X, system the most no longer shifts up.
Automobile engine system, engine system provides running car power, running car system, the biography of monitoring rotating speed ZS
Sensor detects the rotating speed of this system.The power resources of driving system are single, after the rotating speed of driving system becomes 0, are
System is in neutral position；But the system of sailing that is intended to give way is started working from neutral gear, the speed shaft of driving system starts must be by generating electricity
Machine system drives, and namely during ZS=0, electromotor is stepped on the gas, and driving system puts in the first speed, after driving detection speed shaft to rotate, ZS >=
After 1, driving system enters circulating of driving system.
The above is the citing of best mode for carrying out the invention, and it is common that the part addressed the most in detail is this area
The common knowledge of technical staff.Protection scope of the present invention is as the criterion with the content of claim, any technology based on the present invention
The equivalent transformation enlightened and carry out, also within protection scope of the present invention.
Claims (10)
1. the electronic control system of a full-automatic speed change box, it is characterised in that: include push-button unit, gear setup unit, when
Front gear display unit, rotating speed display unit, gear shift interval display unit, gear shift interval regulation unit, system use 12V or
24V unidirectional current, is powered by vehicular power-bottle.
2. the implementation method of the electronic control system of a full-automatic speed change box, it is characterised in that: described control method include with
Lower step:
Step S102, sets high tap position, and in control system, gear includes 1-8 shelves, R shelves, and R shelves, for reversing gear, are pressed in 1-8 shelves and appointed
Anticipate one grade or R shelves, set high tap position.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State control method further comprising the steps of:
Step S103, whether monitoring rotating speed ZS is zero；Step S104, it is judged that whether automobile steps on the gas.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State control method further comprising the steps of:
Step S108, whether monitoring rotating speed reaches rotating speed of shifting gears, and becomes one grade when rotating speed rises to an interval gear；
Step S109, gear shift, monitor tachometer value ZS≤r × N when rotating speed meets r × (N-1) ＜, wherein N is the gear of 1-8 shelves,
Then it is changed to N shelves.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State control method further comprising the steps of:
Step S111, it is judged that whether gear is zero；
Step S112, it is judged that gear is the most identical with set position；
Step S114, whether rotating speed is less than the minimum speed of set position.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State gear shifting action step in the implementation method of electronic control system to include:
Step S202, detects rotating speed；
Step S203, it is judged that whether rotating speed mates gear；
Step S204, tachometer value ＞ r × (N-1), triggers signal so that electromagnetic valve A obtains electric.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State gear shifting action step in the implementation method of electronic control system also to include:
Step S205, it is judged that whether metal sensor JS has signal；Step S206, it is judged that whether air cylinder detecting sensor QS has letter
Number.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State gear shifting action step in the implementation method of electronic control system also to include:
Step S207, disconnects current gear electromagnetic valve；
Step S208, connects the electromagnetic valve of current rotating speed corresponding 1-8 shelves；
Step S210, electromagnetic valve A power-off, return after completing and perform step S202.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that: institute
State control method to comprise the following steps:
Start from step S101, after completing, perform step S102；
Step S102, sets high tap position, and in control system, gear includes 1-8 shelves, R shelves, and R shelves, for reversing gear, are pressed in 1-8 shelves and appointed
Anticipating one grade or R shelves, set high tap position, such as set 5 and work as, follow-up operation can only run to 5 grades, performs step after completing
S103；
Step S103, whether monitoring rotating speed ZS is zero, if monitoring rotating speed ZS is zero, performs step S104, otherwise performs step
S107；
Step S104, it is judged that whether automobile steps on the gas, if automobile is not stepped on the gas, then performs step S106, otherwise performs step
S105；
Step S106, system finishing runs；
Step S105, carrying cart is hung 1 grade or R shelves, is returned and perform step S103 after completing；
Step S107, carries out rotation speed monitoring, performs step S108 after completing；
Step S108, whether monitoring rotating speed reaches rotating speed of shifting gears, and becomes one grade when rotating speed rises to an interval gear, such as passes through
Gear shift interval regulation unit setting speed every r gear changes one grade, if reaching rotating speed of shifting gears, performing step S109, otherwise returning
Perform step S107；
Step S109, gear shift, monitor tachometer value ZS≤r × N when rotating speed meets r × (N-1) ＜, wherein N is the gear of 1-8 shelves,
Then be changed to N shelves, such as, after rotating speed increases to 1+r from 1, change speed gear box is changed to 2 grades from 1 grade, performs step S110 after completing；
Step S110, carries out gear judgement, performs step S111 and step S112 after completing；
Step S111, it is judged that whether gear is zero, if gear is zero, then returns and performs step S103, if gear is not zero, then return
Receipt row step S107；
Step S112, it is judged that gear is the most identical with set position, if gear is identical with set position, then performs step S113,
Otherwise return and perform step S107；
Step S113, detects rotating speed, performs step S114 after completing；
Step S114, whether rotating speed is less than the minimum speed of set position, if rotating speed is less than the minimum speed of set position, then
Return and perform step S109, otherwise return and perform step S113.
The implementation method of the electronic control system of a kind of full-automatic speed change box the most as claimed in claim 2, it is characterised in that:
In the implementation method of described electronic control system, gear shifting action step is as follows:
Gear shifting action starts from step S201, performs step S202 after completing；
Step S202, detects rotating speed, performs step S203 after completing；
Step S203, it is judged that whether rotating speed mates gear, if rotating speed coupling gear, then returns and performs step S202；Otherwise perform
Step S204；
Step S204, tachometer value ＞ r × (N-1), triggers signal so that electromagnetic valve A obtains electric, performs step S205 after completing；
Step S205, it is judged that whether metal sensor JS has signal, if metal sensor JS has signal, then performs step S206,
Disconnect N-1 shelves electromagnetic valve, otherwise return and perform step S204；
Step S206, it is judged that whether air cylinder detecting sensor QS has signal, if air cylinder detecting sensor QS has signal, then performs step
Rapid S207, otherwise performs step S208；
Step S207, disconnects current gear electromagnetic valve, returns and perform step S206 after completing；
Step S208, connects the electromagnetic valve of current rotating speed corresponding 1-8 shelves, performs step S209 after completing；
Step S209, it is judged that whether air cylinder detecting sensor QS has signal, if air cylinder detecting sensor QS no signal, then returns and holds
Row step S208, otherwise performs step S210；
Step S210, electromagnetic valve A power-off, return after completing and perform step S202.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610775638.1A CN106090202B (en) | 2016-08-31 | 2016-08-31 | A kind of implementation method of the electronic control system of full-automatic speed change box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775638.1A CN106090202B (en) | 2016-08-31 | 2016-08-31 | A kind of implementation method of the electronic control system of full-automatic speed change box |
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| CN106090202A true CN106090202A (en) | 2016-11-09 |
| CN106090202B CN106090202B (en) | 2019-02-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227319A (en) * | 1998-02-03 | 1999-09-01 | 卢克驱动系统有限公司 | Automobile |
| JP2003301940A (en) * | 2002-04-09 | 2003-10-24 | Iseki & Co Ltd | Automatic gear shift control device for moving vehicle |
| CN1613681A (en) * | 2003-11-06 | 2005-05-11 | 井关农机株式会社 | Operational vehicle |
| CN102037193A (en) * | 2008-03-21 | 2011-04-27 | 株式会社小松制作所 | Working vehicle, control device for working vehicle, and control method for working vehicle |
| CN201976449U (en) * | 2010-04-13 | 2011-09-21 | 株式会社久保田 | Display for operation vehicles |
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2016
- 2016-08-31 CN CN201610775638.1A patent/CN106090202B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227319A (en) * | 1998-02-03 | 1999-09-01 | 卢克驱动系统有限公司 | Automobile |
| JP2003301940A (en) * | 2002-04-09 | 2003-10-24 | Iseki & Co Ltd | Automatic gear shift control device for moving vehicle |
| CN1613681A (en) * | 2003-11-06 | 2005-05-11 | 井关农机株式会社 | Operational vehicle |
| CN102037193A (en) * | 2008-03-21 | 2011-04-27 | 株式会社小松制作所 | Working vehicle, control device for working vehicle, and control method for working vehicle |
| CN201976449U (en) * | 2010-04-13 | 2011-09-21 | 株式会社久保田 | Display for operation vehicles |
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|---|
| 卡特彼勒（中国）投资有限公司: "卡特彼勒非公路刚性自卸车", 《2012矿山论坛文集》 * |
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| CN106090202B (en) | 2019-02-05 |
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