CN108330782A - A kind of hydraulic driven road roller safety operation control device and its control method - Google Patents
A kind of hydraulic driven road roller safety operation control device and its control method Download PDFInfo
- Publication number
- CN108330782A CN108330782A CN201810234302.3A CN201810234302A CN108330782A CN 108330782 A CN108330782 A CN 108330782A CN 201810234302 A CN201810234302 A CN 201810234302A CN 108330782 A CN108330782 A CN 108330782A
- Authority
- CN
- China
- Prior art keywords
- switch
- controller
- signal
- road roller
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 210000000635 valve cell Anatomy 0.000 claims abstract description 18
- 230000005484 gravity Effects 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 20
- 239000000523 sample Substances 0.000 claims description 14
- 230000003068 static effect Effects 0.000 description 4
- 210000004209 hair Anatomy 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
- E01C19/262—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles pedestrian-controlled, e.g. with safety arrangements for operator
Abstract
The invention discloses a kind of hydraulic driven road roller safety operation control device and its control method, including switch unit, sensor unit, controller and mechanical valve cell, the switch unit, sensor unit and mechanical valve cell are connect with controller；Wherein the switch unit is closed or off-state and detects different speeds or engine rotational speed signal, leads to the difference of the mechanical valve location mode.The configuration of the present invention is simple, dependable performance is convenient to install and maintain, prevents driver from forgetting to press park brake switch, safety hazard caused by complete machine car slipping；The safety hazard for avoiding non-steering position personnel from not operating vehicle and bringing greatly improves road roller manipulation security reliability.
Description
Technical field
The present invention relates to a kind of road roller working device, specifically a kind of hydraulic driven road roller manipulation safety device and
Its method.
Background technology
Road roller belongs to the scope of compacting equipment in engineering machinery, can be divided into Mechanical Driven by driving principle, hydraulic pressure drives
The types such as dynamic.Road roller needs driver to be manually pressed by park brake switch after complete machine shutdown at present, and road roller is just in and stays
Vehicle on-position, once driver forgets to press park brake switch, road roller just has the risk potential of car slipping, once car slipping
It will result in great safety hazard；The walking of road roller starting at present, as long as engine ignition, after parking braking releases, so that it may
With walking, there is prodigious security risk, non-steering position personnel complete machine progress is controlled due to not operating for this logic control
Walking will bring great safety hazard；For vehicle in normal driving process, driver leaves steering position seat, vehicle
Or meeting normal walking, unsafe driving can bring security risk；Driver occurs under fortuitous event itself, and vehicle is without very
Good safety prevention measure, still will continue to walk, safety is low.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of hydraulic driven road roller safety operation control device and its control method,
Can automatic parking brake, effectively avoid forgetting to press the safety hazard that parking braking causes complete machine car slipping due to driver, keep away
Exempt from non-steering position personnel and do not operate vehicle and the safety hazard brought, the consciousness of driver safety driving can be effectively improved.
To realize the above-mentioned technical purpose, the invention is realized by the following technical scheme, the present invention provides：A kind of hydraulic pressure drive
Dynamic road roller safety operation control device, including switch unit, sensor unit, controller and mechanical valve cell, the switch are single
Member, sensor unit and mechanical valve cell are connect with controller；
The controller sends instruction control machinery for receiving switch unit signal and sensor unit signal
Valve cell state, the controller are microcontroller, model IMCT2840；
The switch unit is used to provide the signal of startup or the braking of road roller；
The sensor unit is used to detect the speed or engine speed of road roller；
The mechanical valve cell is for controlling road roller startup or braking.
Further, further include the alarm lamp and buzzer being connect with controller, reminded for warning.
Further, the switch unit includes that park brake switch, handle mid level switch and seat gravity sensing switch,
The park brake switch, handle mid level switch and seat gravity sensing switch are that open type switchs；
The mechanical valve cell includes brake valve, advance proportioning valve and retrogressing proportioning valve；
The brake valve is used to control the braking of road roller, brake valve power-off, road roller braking；The advance proportioning valve
With moving forward and backward for retrogressing proportional valve control road roller；
The park brake switch is used to directly control the on/off of brake valve, when park brake switch disconnects, braking
Valve is powered；When park brake switch is closed, brake valve power-off；
The handle mid level switch is for detecting whether handle is in middle position state, and handle is in middle position, and position is opened in handle
It closes and closes, complete machine stops walking, and handle is not at middle position, and handle mid level switch disconnects；
Whether the seat gravity sensing switch has operating personnel for detecting on steering position, when detection steering position seat
Chair sat down pressure when, seat gravity sensing switch be closed.
The sensor unit includes speed probe and velocity sensor, and speed probe detects road roller engine
Rotating speed, velocity sensor detect road roller speed；
What the handle mid level switch and seat gravity sensing switched is opened or closed signal and the different hairs of detection
Motivation rotating speed or speed can be used for controlling the on/off of brake valve.
The park brake switch, handle mid level switch and seat gravity sensing switch are also connect with DC power supply.
Brake valve, advance proportioning valve, retrogressing proportioning valve, alarm lamp and the equal grounding connection of buzzer.
A kind of hydraulic driven road roller safety operation control method of the present invention, roller controller detection receive switch unit
Signal, the detection speed signal of sensor；The status signal of switch unit includes park brake switch, handle mid level switch and seat
Chair gravity sensing switchs respective on-off signal；Speed detection signal include velocity sensor detection road roller speed and
The engine speed of speed probe detection；It is off-state, velocity pick-up when the controller receives handle mid level switch
The signal that device is zero, seat gravity sensing switch are closed state, the signal of speed probe being not zero and parking braking
When switch off state, controller output voltage is to brake valve, and output current is to advance proportioning valve or retreats proportioning valve, control pressure
Road machine moves forward or back.
When handle mid level switch closure, this closure signal is passed into controller, if controller detects speed at this time
After the signal of sensor is zero, controller automatically cuts off the power supply of brake valve, and complete machine is in parking braking state, prevents from driving automatically
The person of sailing forgets to press park brake switch, safety hazard caused by complete machine car slipping.
It is off-state, the signal that velocity sensor is zero, seat gravity that the controller, which receives handle mid level switch,
Inductive switch is off-state, the signal that speed probe is not zero, when park brake switch off-state, controller cut-out system
The power supply of dynamic valve.
It is off-state, the signal that velocity sensor is not zero, seat weight that the controller, which receives handle mid level switch,
Power inductive switch is off-state, and park brake switch off-state, controller output current is to alarm lamp and buzzer, if reaching
To after setting time, seat gravity sensing switch is still off-state, and controller stops output current to advance proportioning valve, retrogressing
Proportioning valve, complete machine stop walking, and controller cuts off the power supply of brake valve, complete machine is made to be in parking braking state.
After road roller complete machine is static, mid level switch is closed state, presses park brake switch, and park brake switch closes
It closes, after controller detects this closure signal, controller cuts off the power supply of brake valve, and complete machine is in parking braking state.
Advantageous effect：
1, the configuration of the present invention is simple, dependable performance are convenient to install and maintain.
2, it is equipped with manual parking brake switch, presses park brake switch, complete machine is in parking braking state.
3, complete machine automatic parking brake after static, prevents driver from forgetting to press park brake switch, complete machine car slipping is made
At safety hazard.
4, the safety hazard for avoiding non-steering position personnel from not operating vehicle and bringing.
5, it effectively prevent driver vehicle under fortuitous event occur to walk on the safety hazard brought, can effectively improve
The consciousness that driver safety drives.
Description of the drawings
Fig. 1 is a kind of connection relationship diagram of hydraulic driven road roller manipulation safety device of the present invention；
Mark meaning is as follows：1, park brake switch, 2, handle mid level switch, 3, seat gravity sensing switch, 4, rotating speed
Sensor, 5, velocity sensor, 6, controller, 7, brake valve, 8, advance proportioning valve, 9, retreat proportioning valve, 10, alarm lamp, 11,
Buzzer.
Specific implementation mode
Technical solution of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that ability
The technical staff in domain can be better understood from the present invention and can be practiced.
As shown in Figure 1, a kind of hydraulic driven road roller manipulation safety device, including switch unit, sensor unit, control
Device 6 processed and mechanical valve cell, the switch unit, sensor unit and mechanical valve cell are connect with controller 6；
The controller 6 sends instruction control machine for receiving switch unit signal and sensor unit signal
Tool valve cell state, the controller 6 are microcontroller, model IMCT2840；
The switch unit is used to provide the signal of startup or the braking of road roller；
The sensor unit is used to detect the speed or engine speed of road roller；
The mechanical valve cell is for controlling road roller startup or braking.
The park brake switch 1, handle mid level switch 2 and seat gravity sensing switch 3 connect with 24V DC power supplies
It connects.
The brake valve 7, retreats proportioning valve 9,11 equal grounding connection of alarm lamp 10 and buzzer at advance proportioning valve 8.
Controller 6 is also associated with alarm lamp 10 and buzzer 11, is reminded for warning.
The switch unit includes park brake switch 1, handle mid level switch 2 and seat gravity sensing switch 3, described to stay
Vehicle brake switch 1, handle mid level switch 2 and seat gravity sensing switch 3 switch for open type；
The mechanical valve cell includes brake valve 7, advance proportioning valve 8 and retrogressing proportioning valve 9；
The brake valve 7 is used to control the braking of road roller, and brake valve 7 powers off, road roller braking；The advance ratio
Valve 8 and retrogressing proportioning valve 9 control moving forward and backward for road roller respectively；
The park brake switch 1 is used to directly control the on/off of brake valve 7, when park brake switch 1 disconnects, system
Dynamic valve 7 is powered；When park brake switch 1 is closed, brake valve 7 powers off；
The handle mid level switch 2 is for detecting whether handle is in middle position state, and handle is in middle position, and position is opened in handle
It closes 2 to be closed, complete machine stops walking, and handle is not at middle position, and handle mid level switch 2 disconnects；
The seat gravity sensing switch 3 is for detecting on steering position whether have operating personnel, when detection steering position
Seat sat down pressure when, seat gravity sensing switch 3 closure.
The sensor unit includes speed probe 4 and velocity sensor 5, and speed probe 4 detects road roller hair
The rotating speed of motivation, velocity sensor 5 detect the speed of road roller；
The different of signal and detection are opened or closed in the handle mid level switch 2 and seat gravity sensing switch 3
Engine speed or speed can be used for controlling the on/off of brake valve 7.
Park brake switch 1, handle mid level switch 2, seat gravity sensing switch 3 are separately connected a, b, c pipe of controller 6
D, e pin of foot, controller 6 are connected separately with speed probe 4, velocity sensor 5, and f, g, h pin of controller 6 connect respectively
It is connected to brake valve 7, advance proportioning valve 8, retreats proportioning valve 9, i, j pin of controller 6 are connected separately with alarm lamp 10, buzzer
11。
A kind of hydraulic driven road roller safety operation control method of the present invention, roller controller detection receive switch unit
Signal, the detection speed signal of sensor；The status signal of switch unit includes park brake switch, handle mid level switch and seat
Chair gravity sensing switchs respective on-off signal；Speed detection signal include velocity sensor detection road roller speed and
The engine speed of speed probe detection；
The first embodiment is off-state when the b pins of the controller receive handle mid level switch, controller
After e pins detect the signal that velocity sensor is zero, c, d pin of controller detect seat gravity sensing switch respectively
Closure signal, speed probe are not zero after signal, and controller a pins receive the signal of park brake switch disconnection
When, the f pins output voltage of controller is to brake valve, and parking braking releases, and g, h pin of controller distinguish output current to before
Into proportioning valve, retreat proportioning valve, control complete machine walking.
The cut-off signal of handle mid level switch is passed to controller by second of embodiment when the disconnection of handle mid level switch
B pins, when the e pins of controller detect that the signal of velocity sensor is not zero, if at this time controller c pins detection not
After the closure signal switched to seat gravity sensing, i, j pin difference output voltage of controller are to alarm lamp, buzzer, report
Warning lamp flickers, and buzzer rings, alerting drivers return on seat, carries out safe driving；If after reaching setting time, controller
C pins still can't detect seat gravity sensing switch closure signal, then controller g, h pin stop output current giving
Advance proportioning valve retreats proportioning valve, and complete machine stops walking, and the f pins of controller stop to brake valve output voltage, cut-out braking
The power supply of valve makes complete machine be in parking braking state, this can effectively improve the consciousness of driver safety driving, effectively prevent driving
It sails an ancient official title and goes out or occur vehicle under fortuitous event and walk on the safety hazard brought.
The cut-off signal of handle mid level switch is passed to controller by the third embodiment when the disconnection of handle mid level switch
B pins, after the e pins of controller detect that the signal of velocity sensor is zero, c, d pin of controller detect seat respectively
The cut-off signal of chair gravity sensing switch and being not zero after signal for speed probe, even if the signal that park brake switch disconnects
The a pins of controller are passed to, the f pins of controller stop, to brake valve output voltage, still cutting off the power supply of brake valve, whole
Machine is in parking braking state, avoids non-steering position personnel from not operating vehicle and the safety hazard brought.
4th kind of embodiment, after complete machine is static, handle mid level switch is closed, and presses park brake switch, a pipes of controller
After foot detects the closure signal of park brake switch, the f pins of controller stop, to brake valve output voltage, cutting off brake valve
Power supply, complete machine is in parking braking state.
5th kind of embodiment, when handle mid level switch is closed, park brake switch disconnects, by the closure of handle mid level switch
Signal passes to the b pins of controller, if after the e pins of controller detect that the signal of velocity sensor is zero at this time, control
The f pins of device stop cutting off the power supply of brake valve to brake valve output voltage, and complete machine is in parking braking state, prevents from driving
Member forgets to press park brake switch, safety hazard caused by complete machine car slipping.
The present invention a kind of hydraulic driven road roller safety operation control device and its control method, complete machine are stayed automatically after static
Vehicle is braked, and prevents driver from forgetting to press park brake switch, safety hazard caused by complete machine car slipping；Avoid non-steering position people
Member does not operate vehicle and the safety hazard brought；The consciousness for effectively improving driver safety driving, effectively prevent driver to occur
Vehicle walks on the safety hazard brought under fortuitous event；It is equipped with manual parking brake switch, presses park brake switch, it is whole
Machine is in parking braking state.
The present embodiment is simple in structure, dependable performance, convenient to install and maintain, and it is safe and reliable to greatly improve road roller manipulation
Property.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure made by bright specification and accompanying drawing content either equivalent process transformation or be directly or indirectly used in other correlation
Technical field, be similarly included in the present invention scope of patent protection.
Claims (10)
1. a kind of hydraulic driven road roller safety operation control device, which is characterized in that including switch unit, sensor unit, control
Device processed and mechanical valve cell, the switch unit, sensor unit and mechanical valve cell are connect with controller；The control
Device sends instruction control machinery valve cell state for receiving switch unit signal and sensor unit signal；Described
Switch unit is used to provide the signal of startup or the braking of road roller；The sensor unit is used to detect the speed of road roller
Or engine speed；The mechanical valve cell is for controlling road roller startup or braking；
Wherein the switch unit is closed or off-state and detects different speeds or engine rotational speed signal, causes institute
The state for stating mechanical valve cell on/off is different.
2. a kind of hydraulic driven road roller safety operation control device according to claim 1, which is characterized in that further include with
The alarm lamp and buzzer of controller connection.
3. a kind of hydraulic driven road roller safety operation control device according to claim 1, which is characterized in that the switch
Unit includes park brake switch, handle mid level switch and seat gravity sensing switch, and the sensor unit includes rotating speed
Sensor and velocity sensor, the mechanical valve cell include brake valve, advance proportioning valve and retrogressing proportioning valve.
4. a kind of hydraulic driven road roller safety operation control device according to claim 1, which is characterized in that the parking
Brake switch, handle mid level switch and seat gravity sensing switch are that open type switchs, and the controller is microcontroller.
5. a kind of hydraulic driven road roller safety operation control device according to claim 3, which is characterized in that the parking
Brake switch, handle mid level switch and seat gravity sensing switch are powered by DC power supply, the brake valve, advance ratio
Example valve and the retrogressing equal grounding connection of proportioning valve, alarm lamp and the equal grounding connection of buzzer.
6. a kind of hydraulic driven road roller safety operation control method, which is characterized in that it is single that roller controller detection receives switch
The signal of member, the detection speed signal of sensor；The status signal of switch unit includes park brake switch, handle mid level switch
Respective on-off signal is switched with seat gravity sensing；Speed detection signal includes the speed of the road roller of velocity sensor detection
And the engine speed of speed probe detection；
It is off-state, the signal that velocity sensor is zero, controller reception when the controller receives handle mid level switch
It is closed state, the signal being not zero and park brake switch off-state of speed probe to seat gravity sensing switch
When, for controller output voltage to brake valve, output current is to advance proportioning valve or retreats proportioning valve.
7. a kind of hydraulic driven road roller safety operation control method according to claim 6, which is characterized in that when the control
It is off-state that device processed, which receives handle mid level switch, and the signal that velocity sensor is zero, seat gravity sensing switch is disconnection
State, when signal and park brake switch off-state that speed probe is not zero, controller cuts off the power supply of brake valve.
8. a kind of hydraulic driven road roller safety operation control method according to claim 6, which is characterized in that when the control
It is off-state that device processed, which receives handle mid level switch, and the signal that velocity sensor is not zero, seat gravity sensing switch is disconnected
Open state, when park brake switch off-state, controller output current is opened to alarm lamp and buzzer, alarm lamp with buzzer
Beginning work；After alarm lamp reaches setting time with buzzer work, it is if controller fails to receive seat gravity sensing and switch
Closed state, controller automatically cut off the power supply of brake valve.
9. a kind of hydraulic driven road roller safety operation control method according to claim 6, which is characterized in that when in handle
Bit switch is closed, and presses park brake switch, after controller receives the closure signal of park brake switch, controller cut-out system
The power supply of dynamic valve.
10. a kind of hydraulic driven road roller safety operation control method according to claim 6, which is characterized in that work as handle
Mid level switch is closed, and park brake switch disconnects, and the closure signal of handle mid level switch is passed to controller, if controlling at this time
After the signal that device receives velocity sensor is zero, controller automatically cuts off the power supply of brake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234302.3A CN108330782A (en) | 2018-03-21 | 2018-03-21 | A kind of hydraulic driven road roller safety operation control device and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234302.3A CN108330782A (en) | 2018-03-21 | 2018-03-21 | A kind of hydraulic driven road roller safety operation control device and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108330782A true CN108330782A (en) | 2018-07-27 |
Family
ID=62931211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810234302.3A Pending CN108330782A (en) | 2018-03-21 | 2018-03-21 | A kind of hydraulic driven road roller safety operation control device and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108330782A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778640A (en) * | 2019-03-28 | 2019-05-21 | 山东临工工程机械有限公司 | A kind of vibration control system and road roller |
| CN109914199A (en) * | 2019-03-28 | 2019-06-21 | 山东临工工程机械有限公司 | A kind of vibration control system and road roller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201415674Y (en) * | 2009-04-13 | 2010-03-03 | 浙江亚太机电股份有限公司 | Manual electrical-controlled parking and auxiliary starting control system for variable-speed automobile |
| CN101873956A (en) * | 2008-02-27 | 2010-10-27 | 三菱重工业株式会社 | Controller of industrial vehicle and industrial vehicle mounting the same |
| CN104044579A (en) * | 2013-03-15 | 2014-09-17 | 福特全球技术公司 | Vehicle immobilizer method and system |
| CN205620761U (en) * | 2016-01-07 | 2016-10-05 | 山东临工工程机械有限公司 | Road roller is with electric start -stop interlocking gear |
| US20170088103A1 (en) * | 2015-09-30 | 2017-03-30 | Bomag Gmbh | Construction Machine, In Particular Rubber-Tired Roller Or Road Finisher |
| CN106560565A (en) * | 2016-01-08 | 2017-04-12 | 徐工集团工程机械股份有限公司 | Safety protection control method, apparatus and system for underground scooptram |
| CN208632915U (en) * | 2018-03-21 | 2019-03-22 | 徐工集团工程机械股份有限公司 | A kind of hydraulic driven road roller safety operation control device |
-
2018
- 2018-03-21 CN CN201810234302.3A patent/CN108330782A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873956A (en) * | 2008-02-27 | 2010-10-27 | 三菱重工业株式会社 | Controller of industrial vehicle and industrial vehicle mounting the same |
| CN201415674Y (en) * | 2009-04-13 | 2010-03-03 | 浙江亚太机电股份有限公司 | Manual electrical-controlled parking and auxiliary starting control system for variable-speed automobile |
| CN104044579A (en) * | 2013-03-15 | 2014-09-17 | 福特全球技术公司 | Vehicle immobilizer method and system |
| US20170088103A1 (en) * | 2015-09-30 | 2017-03-30 | Bomag Gmbh | Construction Machine, In Particular Rubber-Tired Roller Or Road Finisher |
| CN205620761U (en) * | 2016-01-07 | 2016-10-05 | 山东临工工程机械有限公司 | Road roller is with electric start -stop interlocking gear |
| CN106560565A (en) * | 2016-01-08 | 2017-04-12 | 徐工集团工程机械股份有限公司 | Safety protection control method, apparatus and system for underground scooptram |
| CN208632915U (en) * | 2018-03-21 | 2019-03-22 | 徐工集团工程机械股份有限公司 | A kind of hydraulic driven road roller safety operation control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778640A (en) * | 2019-03-28 | 2019-05-21 | 山东临工工程机械有限公司 | A kind of vibration control system and road roller |
| CN109914199A (en) * | 2019-03-28 | 2019-06-21 | 山东临工工程机械有限公司 | A kind of vibration control system and road roller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2573430A1 (en) | Control device for use in vehicle, adapted to control safety measures against electric power supply failure | |
| CN104401304B (en) | Control system for automotive safety | |
| CN108330782A (en) | A kind of hydraulic driven road roller safety operation control device and its control method | |
| CN205422325U (en) | Bus door safety monitoring device | |
| CN207000726U (en) | A kind of double managing devices that test the speed on electric bicycle | |
| CN204749888U (en) | Electric motor car prevent maloperation protection device | |
| CN107463115A (en) | Intelligent stroller and its power-control method | |
| CN103922245B (en) | Fork truck sensory perceptual system controller and method thereof | |
| CN108137021A (en) | Include the power car of SAHR brakes | |
| CN208632915U (en) | A kind of hydraulic driven road roller safety operation control device | |
| CN107054322A (en) | The stopping of vehicle maintains device | |
| CN205434796U (en) | Pressure monitoring's treadmill | |
| CN205523760U (en) | Electric automobile prevents sloping system of swift current | |
| CN105150189B (en) | Wheel type robot drive mode seamless switching method | |
| CN207737268U (en) | Automatic parking system for electric vehicle | |
| CN106564372A (en) | Anti-drunk-driving fuel-cut power-cut device and application method of the same | |
| CN103043061B (en) | Diesel locomotive stucco electric control gear | |
| TWI472451B (en) | System of braking force adjusting scheme for electronic anti-locking braking system (abs) | |
| CN205871781U (en) | Electric tricycle power ramp system with ramp auxiliary control of slowly falling | |
| CN207089684U (en) | Air Ground Equipment active safety docks aircraft system | |
| CN207611242U (en) | Intelligent cart | |
| CN105438987B (en) | traction crane power control system, method and traction crane | |
| CN204998457U (en) | Engineering machinery is with driver detection device that takes one's place | |
| JP6930344B2 (en) | Work vehicle | |
| CN109080596A (en) | Safe parking system with resistance gauge control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |