CN104977881A - Actuator controller based on communication bus and control method - Google Patents
Actuator controller based on communication bus and control method Download PDFInfo
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- CN104977881A CN104977881A CN201510342327.1A CN201510342327A CN104977881A CN 104977881 A CN104977881 A CN 104977881A CN 201510342327 A CN201510342327 A CN 201510342327A CN 104977881 A CN104977881 A CN 104977881A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25252—Microprocessor
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
Provided are an actuator controller based on a communication bus and a control method. The actuator controller comprises a main control module, a display and operation module, and an AC/DC power supply module. The output ends of the AC/DC power supply module are respectively connected with the main control module and the display and operation module. The main control module is connected with the display and operation module. The main control module is further connected with a controlled system and a measurement and control system. According to the invention, a bus module and a bus processing circuit are arranged, and the adoption of the bus mode is conducive to signal sharing, lower circuit complexity and higher reliability. As a drive and diagnosis circuit is arranged, the need for fault detection under the condition of frequent plug and pull can be satisfied, and quick locating and fault solving are facilitated. Through actuator controller strategy optimization, function expansion can be realized, and the difficulty in secondary development of the measurement and control system can be reduced. The control method of the invention is simple, and easy to operate and implement.
Description
Technical field
The present invention relates to automobile electrically-controlled technical field, be specifically related to a kind of actuator controller based on communication bus and control method.
Background technology
Along with the raising of automotive circuit diagram degree, electron controls technology is broadly used to (as variator, retarder etc.) in vehicle, drives the demand such as intensity, raising vehicle safety to meet to alleviate.
For the product relying on electric actuator (operation valve) action to realize test, a set of nonshared control unit must be designed to realize product testing.If install traditional way, the technical scheme of employing is the mode of electrical control (relay, switch).There is following inferior position in the program:
Logic control, ponent design, long-range and jointly control and not easily realize, wiring is complicated, and component costs is high;
Extendability is poor, is not easy to function upgrading from now on;
Relay, under frequent operation operating mode, easily damages, and the later stage will produce certain maintenance cost.
Summary of the invention
In order to overcome the shortcoming of above-mentioned conventional art, the object of the invention is to propose a kind of actuator controller based on communication bus and control method.
For achieving the above object, the present invention adopts following technical scheme:
A kind of actuator controller based on communication bus, comprise main control module, display and operational module and alterating and direct current source module, the output terminal of described alterating and direct current source module is connected with display and operational module with main control module respectively, and main control module is connected with display and operational module; Main control module is also connected with TT&C system with controlled system respectively; Wherein, described main control module comprises microprocessor, bus processing circuit, driving and diagnostic circuit, direct-current voltage reducing circuit and switch and analog input circuit, wherein, the input end of direct-current voltage reducing circuit is connected with alterating and direct current source module, and the output terminal of direct-current voltage reducing circuit is connected with microprocessor, switch and analog input circuit respectively; Microprocessor is connected with driving and diagnostic circuit, bus processing circuit, switch and analog input circuit respectively.
Described controlled system comprises actuator and sensor; TT&C system comprises bus module and control module, and bus module is connected with actuator through main control module, and control module is connected with sensor.
Described driving and diagnostic circuit one end are connected with microprocessor, and the other end connects controlled system.
Described switch and analog input circuit one end are connected with display and operational module, and the other end is connected with microprocessor.
Described driving and diagnostic circuit are used for when parts and when connecting normal, do not report fault; When parts damages or line fault, to drive and the driving chip of diagnostic circuit detects, and by microprocessor and display and operational module display; Described display and operational module are used for man-machine interaction, show current power supply state, actuator driven, malfunction.
Described microprocessor possesses digital input interface, digital output interface, analog input interface, CAN communication interface; The digital input interface of microprocessor is connected with switch input circuit, receives the signal from panel, and the actuator realized now operates and realizes the open circuit short circuit diagnosis of actuator; Described digital output interface is connected with driving and diagnostic circuit, generates pulse-width signal or switch controlling signal actuate actuators; Described analog input interface is connected with signal conditioning circuit, monitors actuator voltage; CAN communication interface possesses transmission-receiving function, carries out communication by the various equipment in Communication processing circuit and bus.
Based on a control method for the actuator controller of communication bus, first TT&C system be connected by bus with controller, controller is connected with controlled system, and TT&C system is connected with controlled system; When carrying out remote testing, communication set up by TT&C system and controller, TT&C system starts driving arrangement operation controlled system simultaneously, the sensor signal of monitoring controlled system and the various information of reception controller, based on various information, TT&C system manually operates or automatic operation sends to bus the request of control, and actuator controller receives the control request of TT&C system to actuator by bus and carries out logic control, the information of controller is sent to TT&C system by bus simultaneously.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by arranging bus module and bus processing circuit, and the employing of bus mode contributes to sharing of signal, reduces complex circuit degree, improves reliability; Owing to arranging driving and diagnostic circuit in the present invention, the fault detect needs under frequent plug operating mode can be met, contribute to quick position and solve fault; The present invention, by the policy optimization to actuator controller, can expand by practical function, reduces the secondary development difficulty of TT&C system.
Further, described driving and diagnostic circuit one end are connected with microprocessor, and the other end connects controlled system.When parts and when connecting normal, do not report fault; When parts damages or line fault, to drive and the driving chip of diagnostic circuit detects, and by microprocessor and display and operational module display.
Further, described driving circuit and diagnostic circuit adopt integrated chip to add discrete component circuit and realize, and integrated chip selects low power dissipation electron contact to control, under the bad working environments of frequent switch, and not easy burn-out.
In the present invention, the microprocessor of main control module is connected with driving and diagnostic circuit, bus processing circuit, switch and mimic channel, according to bus or now instruction (monitoring switch input circuit signal), corresponding logic control is carried out to actuator, the test to product can be realized, control method has easy, convenient operation and realization.
Accompanying drawing explanation
Fig. 1 is actuator controller block diagram.
Fig. 2 is control module block diagram.
Fig. 3 is display and operational module schematic diagram.
Fig. 4 is controller method process flow diagram
Wherein, 1 is main control module, and 2 is display and operational module, 3 is alterating and direct current source module, 4 is microprocessor, and 5 is bus processing circuit, and 6 for driving and diagnostic circuit, 7 is direct-current voltage reducing circuit, 8 is switch and analog input circuit, and 9 is actuator, and 10 is sensor, 11 is bus module, and 12 is control module.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
See Fig. 1, the present invention includes main control module 1, display and operational module 2 and alterating and direct current source module 3, the output terminal of described alterating and direct current source module 3 respectively with main control module 1 with to show and operational module 2 is connected, main control module 1 is also connected with display and operational module 2.
Controller of the present invention is also connected with TT&C system with controlled system respectively, and controlled system comprises the actuator 9 and sensor 10 that are connected; TT&C system comprises the bus module 11 and control module 12 that are connected.Bus module 11 is connected with actuator 9 through main control module 1, and control module 12 is connected with sensor.
See Fig. 2, main control module 1 comprises microprocessor 4, bus processing circuit 5, driving and diagnostic circuit 6, direct-current voltage reducing circuit 7 and switch and analog input circuit 8, wherein, the input end of direct-current voltage reducing circuit 7 is connected with alterating and direct current source module 3, direct-current voltage reducing circuit 7 is for receiving 24 volts of DC voltage, the output terminal of direct-current voltage reducing circuit 7 is connected with microprocessor 4, switch and analog input circuit 8 respectively, input voltage is carried out step-down conditioning by direct-current voltage reducing circuit 7, is converted to microprocessor 4, CAN, driving and the voltage needed for diagnostic circuit 6.Microprocessor 4 is connected with driving and diagnostic circuit 6, bus processing circuit 5, switch and analog input circuit 8 respectively.
Driving and diagnostic circuit one end of described main control module are connected with microprocessor 4, and the other end connects controlled executive system, when parts and when connecting normal, does not report fault; When parts damages or line fault, driving chip can detect, and by microprocessor 4 and display and operational module 2 teaching process person.
Described switch and analog input circuit 8 one end are connected with display and operational module 2, and the other end is connected with microprocessor 4, realizes the detection of instruction to signal after changing.
Described display and operational module 8, for man-machine interaction, by showing current power supply state, actuator driven, malfunction etc., can help operator to complete test action.
The control method of a kind of actuator controller provided by the invention: first TT&C system be connected by bus with actuator controller, controller is connected with controlled system, and TT&C system is connected with controlled system; When needs carry out remote testing, after communication set up by TT&C system and controller, TT&C system starts driving arrangement operation controlled system (as variator) simultaneously, sensor signal and the various information (as gear request, current gear, rotating speed, pressure) receiving controller of monitoring controlled system.Based on the various information of monitoring, TT&C system sends to bus the request of control by manual operation or automatic operation.Actuator controller receives the control request of TT&C system to actuator by bus and carries out logic control, the information (voltage, fault etc.) of controller is sent to TT&C system by bus simultaneously.
In order to meet the needs of local control, the existing ground mode of controller support, the microprocessor of controller receives the switch order from panel, carries out the control of actuator according to certain logic.
Controller of the present invention possesses actuator open fault diagnostic function, and described driving and diagnostic circuit adopt integrated chip to add discrete component circuit and realize, low in energy consumption, system without deaerator.Integrated chip input end is connected with digital output interface, and output terminal is connected with actuator, and diagnostics port is connected with microprocessor digital input end by bleeder circuit, current-limiting circuit.When input end is high level, when chip monitors actuator line short or open circuit, diagnostics port will be driven to export high level; When input end is high level, chip monitor actuator circuit normal time, diagnostics port output low level will be driven.Microprocessor like this, according to input end, the diagnostics port state of chip, is judged the system failure, is lighted trouble light, and sends diagnostic trouble code to bus.
The microprocessor that controller of the present invention adopts possesses digital input interface, digital output interface, analog input interface, CAN communication interface;
The digital input interface of described microprocessor is connected with switch input circuit, can receive the signal from panel, and the actuator realized now operates and realizes the open circuit short circuit diagnosis of actuator.
The digital output interface of described microprocessor is connected with driving and diagnostic circuit, can generate pulse-width signal or switch controlling signal actuate actuators.
The analog input interface of described microprocessor is connected with signal conditioning circuit, can monitor actuator voltage.
The CAN interface of described microprocessor possesses transmission-receiving function, carries out communication by the various equipment in Communication processing circuit and bus.
In the present invention, the microprocessor of main control module is connected with driving and diagnostic circuit, bus processing circuit, switch and mimic channel, according to bus or now instruction (monitoring switch input circuit signal), certain logic control is carried out to actuator, the test to product can be realized.
See Fig. 3, display and operational module 2 are display and guidance panel, panel are provided with interchange, d. c. indicator light, low gear output, high gear output indicator, malfunction indicator lamp, and upper electrical switch and high and low shift switch key.
See Fig. 4, first carry out power-on self-test, then diagnose, and the result of diagnosis is sent to bus, then whether carry out remote mode request, if then remote request process, if not, now ask process, now ask the result after processing and the result after remote request process to carry out actuator driven operation, send after data through data bus, data bus is again by real-time state, feed back to diagnosis, whole test process is a circulation, can terminate test according to remote request.
Be described below by a concrete example.
Control the operational requirements of actuator for certain automatic transmission high and low shift, devise a set of controller, guidance panel is furnished with top grade, low-grade action button, direct current instruction, power switch etc.; Internal placement alterating and direct current source module, main control module (microprocessor, communicating circuit, driving circuit, direct-current voltage reducing circuit, switch and analog input circuit).
With reference to figure 1, Fig. 2, Fig. 3, Fig. 4, working method is as follows:
Controller powers on: after power switch ON, d. c. indicator light is bright, system enter Auto-Sensing Mode and timing by communication bus to TT&C system transmitting system status information.
Self-inspection and diagnostic mode: microprocessor drives high and low shift actuator successively, if monitoring driving current/voltage is normal, then do not light trouble light; If there is open circuit or short circuit problem, light trouble light and send diagnostic trouble code.
Pattern switches: system electrification is defaulted as existing ground mode, after self-inspection completes, after receiving TT&C system communication request, is switched to distance control mode.
Remote mode: after being switched to remote mode, TT&C system operates in manual mode, selects high and low shift button by the man-machine interface of TT&C system, can carry out corresponding actuator operation.TT&C system operates in automatic mode, and in test run, when needs interlock actuator work, TT&C system sends work request to the actuator controller in bus, actuator controller response request, according to certain logic, drives corresponding actuator action.
Existing ground mode: after self-inspection completes, unit is standby.When low-grade push-botton operation, low-grade actuator N second (program setting) power-off afterwards of microprocessor driven, shift fork will keep to low gear position; High-grade push-botton operation, drive the power-off afterwards of high-grade actuator M second (program setting), shift fork will keep to high-grade position.
Claims (7)
1. the actuator controller based on communication bus, it is characterized in that, comprise main control module (1), display and operational module (2) and alterating and direct current source module (3), the output terminal of described alterating and direct current source module (3) respectively with main control module (1) with to show and operational module (2) is connected, main control module (1) is connected with display and operational module (2), main control module (1) is also connected with TT&C system with controlled system respectively, wherein, described main control module (1) comprises microprocessor (4), bus processing circuit (5), drive and diagnostic circuit (6), direct-current voltage reducing circuit (7) and switch and analog input circuit (8), wherein, the input end of direct-current voltage reducing circuit (7) is connected with alterating and direct current source module (3), the output terminal of direct-current voltage reducing circuit (7) respectively with microprocessor (4), switch and analog input circuit (8) are connected, microprocessor (4) respectively with driving and diagnostic circuit (6), bus processing circuit (5), switch and analog input circuit (8) are connected.
2. a kind of actuator controller based on communication bus according to claim 1, is characterized in that, described controlled system comprises actuator (9) and sensor (10); TT&C system comprises bus module (11) and control module (12), bus module (11) is connected with actuator (9) through main control module (1), and control module (12) is connected with sensor (10).
3. a kind of actuator controller based on communication bus according to claim 1, is characterized in that, described driving and diagnostic circuit (6) one end are connected with microprocessor (4), and the other end connects controlled system.
4. a kind of actuator controller based on communication bus according to claim 1, it is characterized in that, described switch and analog input circuit (8) one end are connected with display and operational module (2), and the other end is connected with microprocessor (4).
5. a kind of actuator controller based on communication bus according to claim 1, is characterized in that, described driving and diagnostic circuit (6), for when parts and when connecting normal, do not report fault; When parts damages or line fault, the driving chip of driving and diagnostic circuit (6) detects, and passes through microprocessor (4) and show and operational module (2) display; Described display and operational module (8), for man-machine interaction, show current power supply state, actuator driven, malfunction.
6. a kind of actuator controller based on communication bus according to claim 1, it is characterized in that, described microprocessor (4) possesses digital input interface, digital output interface, analog input interface, CAN communication interface; The digital input interface of microprocessor is connected with switch input circuit, receives the signal from panel, and the actuator realized now operates and realizes the open circuit short circuit diagnosis of actuator; Described digital output interface is connected with driving and diagnostic circuit, generates pulse-width signal or switch signal actuate actuators; Described analog input interface is connected with signal conditioning circuit, monitors actuator voltage; CA communication interface possesses transmission-receiving function, carries out communication by the various equipment in Communication processing circuit and bus.
7. based on a control method for the actuator controller of communication bus, it is characterized in that, first TT&C system be connected by bus with control device, controller is connected with controlled system, and TT&C system is connected with controlled system; When carrying out long-range survey, communication set up by TT&C system and controller, TT&C system starts driving arrangement operation controlled system simultaneously, monitor the sensor signal of controlled system and receive the various information of controller, based on various information, TT&C system manually operates or self steering bus sends the request of control, and actuator controller receives the control request of TT&C system to actuator by bus and patrols control, the information of controller is sent to TT&C system by bus simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510342327.1A CN104977881A (en) | 2015-06-18 | 2015-06-18 | Actuator controller based on communication bus and control method |
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| CN201510342327.1A CN104977881A (en) | 2015-06-18 | 2015-06-18 | Actuator controller based on communication bus and control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105370962A (en) * | 2015-12-04 | 2016-03-02 | 南京中电自动化有限公司 | Controlling unit for modularized pneumatic valve |
| CN106598024A (en) * | 2016-12-09 | 2017-04-26 | 陕西法士特齿轮有限责任公司 | Retarder signal simulation detection apparatus and detection method |
| CN108644183A (en) * | 2018-06-06 | 2018-10-12 | 中国石油化工股份有限公司 | A kind of pump control type electrohydraulic actuator system |
| CN109372645A (en) * | 2018-12-04 | 2019-02-22 | 深圳亿昇动力科技有限公司 | The diagnostic system and control method of turbocharging electric actuator |
| CN112904814A (en) * | 2021-01-16 | 2021-06-04 | 京能十堰热电有限公司 | PROFIBUS equipment online communication state monitoring method based on NT6000 platform |
| CN115135438A (en) * | 2021-01-27 | 2022-09-30 | 艾沛克斯品牌公司 | Spindle with logic power supply bus fault diagnosis device and spindle system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105370962A (en) * | 2015-12-04 | 2016-03-02 | 南京中电自动化有限公司 | Controlling unit for modularized pneumatic valve |
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| CN108644183B (en) * | 2018-06-06 | 2023-12-01 | 中国石油化工股份有限公司 | Pump control type electrohydraulic actuator system |
| CN109372645A (en) * | 2018-12-04 | 2019-02-22 | 深圳亿昇动力科技有限公司 | The diagnostic system and control method of turbocharging electric actuator |
| CN112904814A (en) * | 2021-01-16 | 2021-06-04 | 京能十堰热电有限公司 | PROFIBUS equipment online communication state monitoring method based on NT6000 platform |
| CN112904814B (en) * | 2021-01-16 | 2023-11-14 | 京能十堰热电有限公司 | PROFIBUS equipment on-line communication state monitoring method based on NT6000 platform |
| CN115135438A (en) * | 2021-01-27 | 2022-09-30 | 艾沛克斯品牌公司 | Spindle with logic power supply bus fault diagnosis device and spindle system |
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Application publication date: 20151014 |