CN103056970B - A remote control system for concrete mixer trucks and a control method thereof - Google Patents
A remote control system for concrete mixer trucks and a control method thereof Download PDFInfo
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Abstract
The present invention proposes a remote control system for concrete mixer trucks, including a remote control, an oil pump and a controller. The controller includes a signal receiving module, a voltage output module, a steering control module and a bus receiver module, wherein the signal receiving module is used for receiving signals sent from the remote control, the steering control module is connected to the oil pump, the voltage output module and the bus receiver module are used to connect with the ECU of an engine. The remote control system for concrete mixer trucks can perform remote control of charging and discharging of a concrete mixer truck, and also can perform remote control of an remote-control throttle. Meanwhile, the controller also enables the "high speed protection" function of the engine, and the cost is low and the operation is easy. Furthermore, the invention also provides a concrete mixer truck remote control method.
Description
Technical field
The present invention relates to engineering truck control field, particularly a kind of concrete mixing and transporting car tele-control system and control method thereof
Background technology
In now widely used various engineering truck, comprise concrete mixing and transporting car, bulk powder goods tanker etc., its charging, discharge process and engine remote Throttle Opening Control etc., all unrealizedly by tele-control system, it to be controlled.In correlation technique, application number be CN200920063042.4 patent discloses a kind of engine remote accelerograph adjusting device, comprise PLC, numerical simulation modular converter and third gear self-resetting switch and engine electronic control unit, PLC carries out voltage-regulation by coupled three gear self-resetting switch on-off actions, and the throttle adjustment port this voltage being transported to engine electronic control unit carries out the adjustment of throttle speed, voltage-regulation mode is switch conduction step-by-step counting mode, and realize by relay the control that long-range throttle and main throttle switch.
Described engine remote accelerograph adjusting device can realize engine remote Throttle Opening Control, but have the following disadvantages: first, additionally need increase engine remote accelerograph adjusting device, comprising PLC, numerical simulation modular converter and three gear self-resetting switch etc., cost is higher.Secondly, engine remote accelerator mode control adopts rocker switch control mode, need operate, cannot realize Long-distance Control on vehicle side, operation inconvenience.Again, described engine remote accelerograph adjusting device, without high rotating speed defencive function, can not carry out Remote control to the charging of concrete mixing and transporting car and discharge process.
Summary of the invention
In view of this, the present invention proposes a kind of concrete mixing and transporting car tele-control system and control method thereof, higher for solving concrete mixing and transporting car engine remote Throttle Opening Control cost, and can not Long-distance Control be realized, and the charging of concrete mixing and transporting car, discharge process can not the problem of Long-distance Control.
On the one hand, the present invention proposes a kind of concrete mixing and transporting car tele-control system, comprise remote controller, oil pump and controller, described controller comprises signal receiving module, voltage output module, course changing control module and bus receiver module, the signal that described signal receiving module sends for receiving remote controller, described course changing control module is connected with oil pump, and described voltage output module and bus receiver module are connected with Engine ECU.
Further, described remote controller comprises control panel and signal transmitting module, and control panel is provided with button, and described signal transmitting module is used for sending signal to controller.
Further, described button comprises the first button and the second button, and described first button is the locking button for doors locked; Described second button is the button of unblanking for opening car door.
Further, described button also comprises the 3rd button, the 4th button, the 5th button and the 6th button, and described 3rd button is turbo, for accelerating the rotating speed of engine; Described 4th button is deceleration button, for reducing engine speed; Described 5th button is charging button, rotates forward for controlling mixing drum; Described 6th button is discharging button, for controlling mixing drum reversion.
Further, described remote controller is provided with slip lid, described slip lid is slidably disposed on described remote controller.
Further, described oil pump comprises direct proportion valve and inverse proportion valve, and described oil pump is electric oil pump.
The concrete mixing and transporting car tele-control system of said structure, remote controlled concrete mixing and transporting car charging and discharging, also remote-controlled Long-distance Control throttle; simultaneously; described controller can also realize " the high rotating speed defencive function " of engine, with low cost, easy to operate.
On the other hand, the present invention also proposes a kind of concrete mixing and transporting car long-range control method, and described long-range control method carries out according to following step:
Step S1: export idling voltage;
Step S2: judge whether to carry out charging action, if so, carry out step S3; If not, then judge whether to carry out discharging action, if so, carry out step S3, as neither carried out charging action, also not carrying out discharging action, carrying out step S1;
Step S3: export and control electric current, when carrying out charging action, oil pump direct proportion valve works; When carrying out discharging action, oil pump inverse proportion valve works;
Step S4: when carrying out charging action, has judged whether discharging actuation of keys, if so, carries out step S1, if not, carries out step S5; When carrying out discharging action, judging whether charging actuation of keys, if so, having carried out step S1, if not, carried out step S5;
Step S5: voltage output module exports idling voltage;
Step S6: judge whether to accelerate motion, if so, carries out step S7; If not, then judge whether to need to carry out speed-down action, if so, carry out step S7;
Step S7: need to accelerate motion, according to the click time, export different voltage; Need to carry out speed-down action, according to the click time, export different voltage;
Step S8: according to different magnitude of voltage, there is different change in engine speed;
Step S9: judge the 3rd button, whether the 4th button press simultaneously, if so, carry out step S5, if not, carry out step S10; Or detecting Engine ECU throttle voltage signal is zero, if zero, carries out step S5, if not zero, carries out step S10;
Step S10: when judging to be charging action originally, now whether click discharging button, if so, carry out step S1; Or when being discharging action originally, now whether clicking charging button, if so, carry out step S1; If not, step S11 is carried out;
Step S11: judge whether engine reaches maximum speed, if not, carries out step S6; If so, step S12 is carried out;
Step S12: output voltage remains unchanged, engine speed is constant.
Further, in step described above, S2, S4, S6, S9, S10 and S11, judged by controller 11.
Further, in described step S7, when clicking turbo or deceleration button, if the time of click is in two seconds, then output voltage increases or reduces 1%; If the click time was more than two seconds, then output voltage increases or reduces 10%; If often press turbo or deceleration button, every two seconds, output voltage increases or reduces 10%.
Further, in described step S7, if often by turbo or deceleration button more than ten seconds time, then output voltage reaches maximum or minimum of a value; If press turbo and deceleration button simultaneously, then output voltage values is minimum.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is the structural representation of concrete mixing and transporting car tele-control system remote controller of the present invention;
Fig. 2 is the internal structure schematic diagram of concrete mixing and transporting car tele-control system remote controller of the present invention;
Fig. 3 is the structural representation of concrete mixing and transporting car tele-control system of the present invention;
Fig. 4 is the flow chart of concrete mixing and transporting car long-range control method step 1 of the present invention to step 4;
Fig. 5 is the flow chart of concrete mixing and transporting car long-range control method step 5 of the present invention to step 12.
1 first button
2 second buttons
3 the 3rd buttons
4 the 4th buttons
5 the 5th buttons
6 the 6th buttons
7 control panels
8 slip lids
9 signal transmitting module
10 oil pumps
11 controllers
12 Engine ECU
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1 to Figure 3, concrete mixing and transporting car tele-control system comprises remote controller, controller 11, engine electronic control unit 12 (ECU) and oil pump 10.Described controller 11 is electrically connected with described Engine ECU 12, and described oil pump 10 is electrically connected with described controller 11.
Remote controller comprises control panel 7 and signal transmitting module 9, described control panel 7 arranges button, first button 1, second button 2, the 3rd button 3, the 4th button 4, the 5th button 5 and the 6th button 6, described first button 1 is locking button, the second button 2 is button of unblanking, the 3rd button 3 is turbo, the 4th button 4 is deceleration button, the 5th button 5 is charging button, the 6th button 6 is discharging button.Described button of unblanking is for opening concrete mixing and transporting car car door, and described locking button is for locking concrete mixing and transporting car car door.Described turbo and deceleration button are for controlling engine remote throttle, and turbo is for improving the rotating speed of engine; Deceleration button is for reducing the rotating speed started.Described signal transmitting module 9, for sending signal to controller 11, can perform relevant action after described controller 11 receives signal.As pressed button of unblanking, described controller 11 will open concrete mixing and transporting car car door.
In technique scheme, for convenience of operation, described in button of unblanking be arranged at described locking button side, described in unblank button and described locking button also can be arranged on a seesaw button, one end is set to button of unblanking, and other one end is set to lock button.In like manner, described turbo and described deceleration button also can take similar designs.Correspondingly, described charging button and described discharging button also can take similar designs.
It should be noted that, for preventing maloperation, preferably described unblank button and described locking button are arranged at one end of described remote controller, described turbo, deceleration button, charging button and discharging button are located at the other end of described remote controller.Described remote controller is also provided with slip lid 8, described slip lid 8 can slidably reciprocate on a remote control, the size of described slip lid 8 is about the half of described remote controller, when car door opened by needs, described slip lid 8 is slided to the one end being provided with turbo, deceleration button, charging button and discharging button.When needs operating and remote controlling engine remote throttle or charging, discharging time, described slip lid 8 slide to be provided with unblank button and locking button one end.
Described controller 11 comprises signal receiving module, voltage output module, course changing control module and bus receiver module.The signal that described signal receiving module sends for receiving described remote controller, described voltage output module is used for Engine ECU 12 output voltage signal, one end of voltage signal line is connected with voltage output module, the other end is connected with Engine ECU 12, simultaneously, Engine ECU 12 provides power supply to voltage control module, is generally 5 volts.The bus receiver module of controller 11 is connected with Engine ECU 12 bus, for receiving the bus signals that Engine ECU 12 sends.The mixing drum be connected for controlling concrete mixer truck rotates course changing control module with oil pump 10.
Described oil pump 10 is automatically controlled oil pump, comprises direct proportion valve and inverse proportion valve, and described direct proportion valve and inverse proportion valve are connected with described course changing control template, for controlling rotating and reverse of concrete mixing and transporting car.
By analyzing the throttle curve of engine, and according to Engine ECU 12 response voltage and long-range throttle self-inspection limiting voltage situation, the range of voltage values selecting all engines normally to work, realizes the generalization of controller 11 to different engine.Meanwhile, selected range of voltage values is placed in advance controller 11 control chip, and decile is carried out to interval value, preferably carry out 100 deciles, so that remote controller carries out the adjustment of output voltage values in different action situations.
As shown in Figures 4 and 5, the present invention also proposes a kind of concrete mixing and transporting car long-range control method, is realized by following steps:
Step S1: pilot engine, controller 11 voltage output module exports idling voltage, and now, course changing control module is failure to actuate;
Step S2: judge whether to carry out charging action, if so, carry out step S3; If not, then judge whether to carry out discharging action, if so, carry out step S3, as neither carried out charging action, also not carrying out discharging action, carrying out step S1;
Step S3: course changing control module exports and controls electric current, the proportioning valve of oil pump 10 is started working, if need charging, direct proportion valve works, and inverse proportion valve does not work, if need discharging, then inverse proportion valve work, direct proportion valve does not work, and after direct proportion valve or inverse proportion valve are started working, carries out step S4;
Step S4: when carrying out charging action, has judged whether discharging actuation of keys, if having, carries out step S1, realizes charging and stops, if nothing, carry out step S5; When carrying out discharging action, judging whether charging actuation of keys, if having, having carried out step S1, realized discharging and stop, if nothing, carry out step S5;
Step S5: controller 11 voltage output module exports idling voltage;
Step S6: judge whether to accelerate motion, if so, carries out step S7; If not, then judge whether to need to carry out speed-down action, if so, carry out step S7;
Step S7: need to accelerate motion, according to the click turbo time, export different voltage; Need to carry out speed-down action, according to click deceleration key press time, export different voltage; When needing to accelerate motion, click turbo, the click time is no more than 2 seconds, and now, the output voltage of described voltage output module increases by 1%; More than 2 seconds upon pressing the key, now, voltage output module output voltage increases by 10%, every 2 seconds, the output voltage of voltage output module increases by 10%, time upon pressing the key more than 10 seconds, described voltage output module output voltage reaches maximum, and namely the rotating speed of engine reaches the maximum preset.On the contrary, when pointing out deceleration button, be then corresponding reduction, when pressing deceleration button more than 10 seconds, engine realizes idling.If press turbo and deceleration button simultaneously, then output voltage values is minimum, and idling mode got back to by engine.
Step S8: according to the output voltage of voltage output module, engine speed respective change;
Step S9: judge whether turbo and deceleration button are pressed, and if so, carry out step S5 simultaneously, if not, carry out step S10; Or detecting Engine ECU throttle voltage signal is zero, as being zero, carrying out step S5, as non-vanishing, carrying out step S10;
Step S10: when judging to be charging action originally, now whether click discharging button, if so, carry out step S1; Or when being discharging action originally, now whether clicking charging button, if so, carry out step S1; If not, step S11 is carried out;
Step S11: judge whether engine reaches maximum speed, if not, carries out step S6, if so, carries out step S12;
Step S12: voltage output module output voltage remains unchanged, and engine speed is constant.
In above-mentioned steps, step S2, S4, S6, S9, S10 and S11, judged by controller.
It should be noted that, when to press turbo and deceleration button simultaneously, described Engine ECU 12 can according to preset output minimum voltage, and namely engine speed gets back to idling mode.When the rotating speed of engine gets back to idling mode, described Engine ECU 12 realizes " zero ", and the coherent signal received namely realizes resetting, and no longer remembers or performs.In addition, the maximum speed of every money engine need preset, and when reaching maximum (top) speed, the output voltage of described Engine ECU 12 no longer increases, and protection engine can not damage because rotating speed is too high, namely realizes " the high rotating speed defencive function " of engine.In addition, in charging and discharging process, when engine speed reaches maximum, the rotating speed of mixing drum is also the fastest, and when the rotating speed of engine is in idling mode, the rotating speed of mixing drum is also the slowest.
The concrete mixing and transporting car tele-control system tool that the present invention proposes has the following advantages:
First, the Long-distance Control of engine remote throttle is achieved.The Long-distance Control to engine remote throttle can be realized by manipulation remote controller, operate more convenient.Secondly, the charging of remote controlled concrete mixing and transporting car and discharging.By remote controller, charging and the discharging process of concrete mixing and transporting car can be completed, meanwhile, the rotating speed of mixing drum can also be controlled.Again, relative inexpensiveness.Eliminate the mechanical operation portion of the long-range throttle of conventional engines, cost significantly reduces, and is easy to apply.Finally, realize " the high rotating speed defencive function " of engine.When the rotating speed of engine reaches the rated speed preset, the voltage that Engine ECU 12 exports can not increase again, effectively prevents the rotating speed because of engine too high and causes damage to engine.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a concrete mixing and transporting car tele-control system, it is characterized in that, comprise remote controller, oil pump (10) and controller (11), described controller (11) comprises signal receiving module, voltage output module, course changing control module and bus receiver module, the signal that described signal receiving module sends for receiving remote controller, described course changing control module is connected with oil pump (10), and described voltage output module and bus receiver module are used for being connected with the ECU (12) of engine.
2. tele-control system according to claim 1, it is characterized in that, described remote controller comprises control panel (7) and signal transmitting module (9), control panel (7) is provided with button, and described signal transmitting module (9) is for sending signal to controller (11).
3. tele-control system according to claim 2, it is characterized in that, described button comprises the first button (1) and the second button (2), described first button (1) is the locking button for doors locked, and described second button (2) is the button of unblanking for opening car door.
4. tele-control system according to claim 2, it is characterized in that, described button also comprises the 3rd button (3), the 4th button (4), the 5th button (5) and the 6th button (6), described 3rd button (3) is turbo, for accelerating the rotating speed of engine; Described 4th button (4) is deceleration button, for reducing engine speed; Described 5th button (5) is charging button, rotates forward for controlling mixing drum; Described 6th button (6) is discharging button, for controlling mixing drum reversion.
5. tele-control system according to claim 2, is characterized in that, described remote controller is provided with slip lid (8), and described slip lid (8) is slidably disposed on described remote controller.
6. tele-control system according to claim 1, is characterized in that, described oil pump (10) comprises direct proportion valve and inverse proportion valve, and described oil pump (10) is electric oil pump.
7. a long-range control method for concrete mixing and transporting car, is characterized in that, described long-range control method carries out according to following step:
S1): export idling voltage;
S2): judge whether to carry out charging action, if so, carry out step S3; If not, then judge whether to carry out discharging action, if so, carry out step S3, as neither carried out charging action, also not carrying out discharging action, carrying out step S1;
S3): export and control electric current, when carrying out charging action, oil pump (10) direct proportion valve works; When carrying out discharging action, oil pump (10) inverse proportion valve work;
S4): when carrying out charging action, having judged whether discharging actuation of keys, if so, having carried out step S1, if not, carried out step S5; When carrying out discharging action, judging whether charging actuation of keys, if so, having carried out step S1, if not, carried out step S5;
S5): voltage output module exports idling voltage;
S6): judge whether to accelerate motion, if so, step S7 is carried out; If not, then judge whether to need to carry out speed-down action, if so, carry out step S7;
S7): need to accelerate motion, according to the click turbo time, export different voltage; Need to carry out speed-down action, according to click deceleration key press time, export different voltage;
S8): according to different magnitude of voltage, there is different change in engine speed;
S9): judge turbo, whether deceleration button press simultaneously, if so, carry out step S5, if not, carry out step S10; Or detecting Engine ECU (12) throttle voltage signal is zero, if zero, carries out step S5, if not zero, carries out step S10;
S10): when judging to be charging action originally, now whether click discharging button, if so, carry out step S1; Or when being discharging action originally, now whether clicking charging button, if so, carry out step S1; If not, step S11 is carried out;
S11) judge whether engine reaches maximum speed, if not, carry out step S6; If so, step S12 is carried out;
S12): output voltage remains unchanged, engine speed is constant.
8. the long-range control method of concrete mixing and transporting car according to claim 7, is characterized in that, described step S2, S4, S6, S9, S10 and S11, is judged by controller (11).
9. the long-range control method of concrete mixing and transporting car according to claim 7, is characterized in that, in described step S7, when clicking turbo or deceleration button, if the time of click is in two seconds, then output voltage increases or reduces 1%; If the click time was more than two seconds, then output voltage increases or reduces 10%; If often press turbo or deceleration button, every two seconds, output voltage increases or reduces 10%.
10. the long-range control method of concrete mixing and transporting car according to claim 9, is characterized in that, in described step S7, if often by turbo or deceleration button more than ten seconds time, then output voltage reaches maximum or minimum of a value; If press turbo and deceleration button simultaneously, then output voltage values is minimum.
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| CN201210579239.XA CN103056970B (en) | 2012-12-27 | 2012-12-27 | A remote control system for concrete mixer trucks and a control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103075258B (en) * | 2012-12-28 | 2016-02-10 | 三一汽车制造有限公司 | Remote accelerator control system of engine and engineering machinery |
| CN103383544A (en) * | 2013-06-28 | 2013-11-06 | 三一汽车制造有限公司 | Remote control system and engineering vehicle |
| CN103604303A (en) * | 2013-11-22 | 2014-02-26 | 宁夏鹏程致远自动化技术有限公司 | Novel electric control system of suspension conveying system for high-temperature materials |
| CN104044214B (en) * | 2014-07-02 | 2016-01-27 | 安徽星马专用汽车有限公司 | A kind of electric-control system of concrete mixer truck |
| CN112549312A (en) * | 2020-12-13 | 2021-03-26 | 江苏奥新新能源汽车有限公司 | Upper-mounted driving system of pure electric concrete mixer truck and control method thereof |
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| US7740396B2 (en) * | 2006-04-25 | 2010-06-22 | Bendix Commercial Vehicle Systems Llc | Arrangement for improving the operational performance of cement mixing truck |
| DE202007005706U1 (en) * | 2007-04-19 | 2008-08-28 | Liebherr-Mischtechnik Gmbh | Control for truck mixer |
| CN102087512B (en) * | 2009-12-07 | 2012-12-05 | 厦门雅迅网络股份有限公司 | Method for achieving remote monitoring of concrete mixer truck by using metal proximity sensor |
| US20110153142A1 (en) * | 2009-12-18 | 2011-06-23 | International Truck Intellectual Property Company, Llc. | Vehicle Installed Cement Mixer Control |
| CN201889854U (en) * | 2010-10-29 | 2011-07-06 | 贾彦江 | Intelligent agitator controller |
| CN102485453A (en) * | 2010-12-06 | 2012-06-06 | 上海郡美实业有限公司 | Agitating lorry constant-speed control method |
| CN201989238U (en) * | 2011-02-24 | 2011-09-28 | 成都市新筑路桥机械股份有限公司 | Operating system of concrete mixing truck |
| CN202556585U (en) * | 2012-05-05 | 2012-11-28 | 湖北江山专用汽车有限公司 | Electric control manipulation device for concrete mixing and transporting truck |
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