CN201963411U - Independent automatic control device for electronic throttle - Google Patents
Independent automatic control device for electronic throttle Download PDFInfo
- Publication number
- CN201963411U CN201963411U CN2011200793772U CN201120079377U CN201963411U CN 201963411 U CN201963411 U CN 201963411U CN 2011200793772 U CN2011200793772 U CN 2011200793772U CN 201120079377 U CN201120079377 U CN 201120079377U CN 201963411 U CN201963411 U CN 201963411U
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- throttle
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- register
- closure
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The utility model relates to an independent automatic control device for an electronic throttle, which comprises an electronic throttle pedal position sensor control unit, an electronic throttle unit and a connecting wiring harness, wherein the electronic throttle pedal position sensor control unit comprises a non-contact angular displacement position sensor module A, and the electronic throttle unit comprises a central processing module, a non-contact angular displacement position sensor module B, an interface module, a temperature sensor module and a communication and interface module, and also comprises a torque motor output control module and a power supply module; and the central processing module comprises a maximum throttle position register, a minimum throttle position register, a maximum throttle drive current register, a minimum throttle drive current register and an absolute throttle opening register and a relative throttle opening register. With the technical scheme, the utility model provides the independent automatic control device for the electronic throttle, which has quick response time, high control precision, strong generality and stable work.
Description
Technical field
The utility model relates to the free-standing electronic throttle automatic control device in a kind of fuel oil, the gas combustion automobile.
Background technique
In traditional electronically controlled fuel injection system, closure what control employing is machinery type, its application area is restricted and lacks accuracy, particularly control effect of the air quantity under special operation condition and precision are all undesirable, thereby cause the decline of motor Economy, discharge of harmful gases amount to increase.
Through constantly studying, exploring, electronic throttle is born thereupon, electronic throttle has overcome originally when mechanical throttle, the narrow limitation that engine control system can only be controlled idling and cruise, then become the full operating mode of motor is controlled, the electronically controlled fuel injection system of equipment electronic throttle can obtain lower fuel consumption, possesses higher performances such as booster response.But, final controlling element in the existing electronic throttle is generally the mode that stepper motor adds driving gear, its response speed still lags, the engine load sensor and the E-Gas position transducer that use are generally potentiometer, life-span is short, thereby influences the working stability of whole electronic throttle system.
Summary of the invention
The purpose of this utility model: in order to overcome the defective of prior art, the utility model provide a kind of response time fast, control accuracy is high, the free-standing electronic throttle automatic control device of highly versatile, working stability.
The technical solution of the utility model: a kind of free-standing electronic throttle automatic control device, it is characterized in that: include efp position transducer control unit, electronic throttle unit and rat tail, described efp position transducer control unit includes and is used for the contactless angular displacement position transducer modules A of detected electrons gas pedal aperture, described electronic throttle unit includes the central processing module to the closed loop control of throttle opening signal, be used for detecting the contactless angular displacement position transducer module B of throttle opening, the signal that is used for being gathered in the efp position transducer control unit passes to the Interface Module of central processing module, be used for monitoring the temperature sensor module of central processing module operating ambient temperature, be used for transmitting the communication of central processing module signal and electrical control system for engine signal, Interface Module, also include and be used for promoting the torque motor output control module of throttle opening and be used for power module to each module for power supply, be provided with in the described central processing module and be used for storing respectively the throttle opening maximum value, the closure maximum position register of minimum value, closure minimum position register is used for storing maximum drive current in the torque motor output control module, the closure maximum drive current register of minimum drive current, closure minimum drive current register and the absolute aperture register of closure that is used for storing the actual aperture of closure, the closure relative opening degree register of closure and pedal relative opening degree.
Further improvement of the utility model: be provided with the AD sampling module that is used for gathering operating current in signal, throttle opening signal, central processing module internal work temperature and the torque motor output control module that efp position transducer control unit gathers in the described central processing module.
Further improvement of the present utility model: described rat tail includes power line, connection, E-Gas position signal line and throttle position signal line.
Further improvement more of the present utility model: described central processing module is a PIC18F2420 automobile chip.
Adopt technique scheme, the beneficial effects of the utility model: adopt contactless angular displacement position transducer module, make efp have low, the long working life of cost; Described electronic throttle adopts the torque motor output control module to drive the aperture of closure, makes that the whole free-standing throttle system response time is faster, control accuracy is higher, versatility is stronger, work is more stable; In use, can be by described central processing module be provided with corresponding program, thus can satisfy the use under the various situations.
Description of drawings
Fig. 1 is the working principle block diagram of the utility model specific embodiment;
Fig. 2 is a main program flow chart in the utility model specific embodiment;
Fig. 3 is the utility model specific embodiment acceptance of the bid stator program flow diagram;
Fig. 4 is that serial ports receives program flow diagram in the utility model specific embodiment;
Fig. 5 is a closure control subprogram flow chart in the utility model specific embodiment;
Fig. 6 is a temperature detection subroutine flow chart in the utility model specific embodiment;
Fig. 7 is an idle speed control subroutine flow chart in the utility model specific embodiment.
Embodiment
As shown in Figure 1, a kind of free-standing electronic throttle automatic control device, it is characterized in that: include efp position transducer control unit, electronic throttle unit and rat tail, described efp position transducer control unit includes and is used for the contactless angular displacement position transducer modules A of detected electrons gas pedal aperture, described electronic throttle unit includes the central processing module to the closed loop control of throttle opening signal, be used for detecting the contactless angular displacement position transducer module B of throttle opening, the signal that is used for being gathered in the efp position transducer control unit passes to the Interface Module of central processing module, be used for monitoring the temperature sensor module of central processing module operating ambient temperature, be used for transmitting the communication of central processing module signal and electrical control system for engine signal, Interface Module, also include and be used for promoting the torque motor output control module of throttle opening and be used for power module to each module for power supply, be provided with in the described central processing module and be used for storing respectively the throttle opening maximum value, the closure maximum position register of minimum value, closure minimum position register is used for storing maximum drive current in the torque motor output control module, the closure maximum drive current register of minimum drive current, closure minimum drive current register and the absolute aperture register of closure that is used for storing the actual aperture of closure, the closure relative opening degree register of closure and pedal relative opening degree.In this specific embodiment, what described contactless angular displacement position transducer adopted is that the magnetic rotation structure adds the magnetic rotary encoder chip, efp and each module can realize closed loop control separately, and described central processing module is a PIC18F2420 automobile chip.Described rat tail is used for connecting electronic throttle unit and electrical control system for engine.
Be provided with the AD sampling module that is used for gathering operating current in signal, throttle opening signal, central processing module internal work temperature and the torque motor output control module that efp position transducer control unit gathers in the described central processing module.Described AD sampling module is five tunnel 10 AD Acquisition Circuit that chip internal carries, and is used for signal, throttle opening signal, the central authorities that detected electrons accelerator pedal position sensor control unit gathers respectively
Operating current in puocessing module internal work temperature and the torque motor output control module.
In the utility model specific embodiment, described rat tail includes power line, connection, E-Gas position signal line and throttle position signal line.
Shown in Fig. 2-7, described central processing module inside is provided with the control program algorithm software of original creation and the calibration software of original creation.In the utility model specific embodiment, described central processing module judges whether pedal moves 3 times in 3 seconds earlier, start calibration software 3 times if move, pedal is stepped on low a period of time, judge whether the signal that contactless angular displacement sensor A gathers maintains than low value, again pedal is discharged, whether the signal that contactless angular displacement sensor A gathers maintains high value, the SC sigmal control closure that utilizes current contactless angular displacement sensor B to gather is opened to maximum position, control moment motor output control module reduces electric current again, drive closure and be opened to minimum position, obtain the driving current size and Orientation with respect to the corresponding relation of throttle opening and the corresponding relation of pedal aperture and solar term aperture according to above data; If do not move the start-up control algorithm software 3 times, judge whether to be subjected to electrical control system for engine to control, if being subjected to electrical control system for engine controls, judge whether to enter idling mode, after entering idling mode, judge whether closure reaches idling aperture position, the control closure is pressed electrical control system for engine and is specified the stepping aperture to the appropriate location, if not being subjected to electrical control system for engine controls, according to pedal aperture SC sigmal control throttle opening appropriate location, enter temperature sensor module again, whether detected temperatures is normal, under the temperature safety condition,, drive the closure action according to driving current and direction in the absolute aperture of closure or the relative opening degree control moment motor output control module.Described torque motor output control module adopts pulse width modulating technology, frequency height, efficient height, and the specific power height, the reliability height, speed of response is fast.
During use, described central processing module is a PIC18F2420 automotive grade chip, gather the efp position signal by the AD sampling module, control program algorithm software and calibration software in central processing module, output pulse signal driving moment motor output control module promotes throttle opening to corresponding position, and meanwhile the actual position signal according to closure carries out the correction that physical location is carried out in closed loop control; When the unaltered state in described efp position, central processing module can carry out correspondingly outgoing position correction according to the feedback signal of closure at any time; Under the electrical control system for engine state of a control, central processing module will be not according to the physical location of efp, and efp is carried out closed loop control according to the control command of electrical control system for engine; Under all working staties, described central processing module detects inner operating ambient temperature automatically, if temperature surpasses specified value, pass to electrical control system for engine by the central processing module output signal through communication, Interface Module, and this improper phenomenon of record; When central puocessing module drives the efp position correction, and the position of efp is not when reaching desired position in scheduled time, and central processing module passes to electrical control system for engine record improper phenomenon this time with signal; When central puocessing module can't be normally carried out normal aperture control to efp, will stop output control to efp, signal is passed to electrical control system for engine record improper phenomenon this time.
Claims (4)
1. free-standing electronic throttle automatic control device, it is characterized in that: include efp position transducer control unit, electronic throttle unit and rat tail, described efp position transducer control unit includes and is used for the contactless angular displacement position transducer modules A of detected electrons gas pedal aperture, described electronic throttle unit includes the central processing module to the closed loop control of throttle opening signal, be used for detecting the contactless angular displacement position transducer module B of throttle opening, the signal that is used for being gathered in the efp position transducer control unit passes to the Interface Module of central processing module, be used for monitoring the temperature sensor module of central processing module operating ambient temperature, be used for transmitting the communication of central processing module signal and electrical control system for engine signal, Interface Module, also include and be used for promoting the torque motor output control module of throttle opening and be used for power module to each module for power supply, be provided with in the described central processing module and be used for storing respectively the throttle opening maximum value, the closure maximum position register of minimum value, closure minimum position register is used for storing maximum drive current in the torque motor output control module, the closure maximum drive current register of minimum drive current, closure minimum drive current register and the absolute aperture register of closure that is used for storing the actual aperture of closure, the closure relative opening degree register of closure and pedal relative opening degree.
2. free-standing electronic throttle automatic control device according to claim 1 is characterized in that: be provided with the AD sampling module that is used for gathering operating current in signal, throttle opening signal, central processing module internal work temperature and the torque motor output control module that efp position transducer control unit gathers in the described central processing module.
3. free-standing electronic throttle automatic control device according to claim 1 and 2 is characterized in that: described rat tail includes power line, connection, E-Gas position signal line and throttle position signal line.
4. free-standing electronic throttle automatic control device according to claim 1 and 2 is characterized in that: described central processing module is a PIC18F2420 automobile chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200793772U CN201963411U (en) | 2011-03-23 | 2011-03-23 | Independent automatic control device for electronic throttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200793772U CN201963411U (en) | 2011-03-23 | 2011-03-23 | Independent automatic control device for electronic throttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963411U true CN201963411U (en) | 2011-09-07 |
Family
ID=44525948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200793772U Expired - Fee Related CN201963411U (en) | 2011-03-23 | 2011-03-23 | Independent automatic control device for electronic throttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963411U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108904A (en) * | 2011-03-23 | 2011-06-29 | 温州市气动元件厂 | Automatic control device of independent type electronic throttle valve |
| CN102435441A (en) * | 2011-09-08 | 2012-05-02 | 中国汽车技术研究中心 | Data acquisition system for emission parameter of moving vehicle |
| CN104819832A (en) * | 2015-04-24 | 2015-08-05 | 无锡隆盛科技股份有限公司 | Open-loop throttle valve response time detection method |
-
2011
- 2011-03-23 CN CN2011200793772U patent/CN201963411U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108904A (en) * | 2011-03-23 | 2011-06-29 | 温州市气动元件厂 | Automatic control device of independent type electronic throttle valve |
| CN102435441A (en) * | 2011-09-08 | 2012-05-02 | 中国汽车技术研究中心 | Data acquisition system for emission parameter of moving vehicle |
| CN104819832A (en) * | 2015-04-24 | 2015-08-05 | 无锡隆盛科技股份有限公司 | Open-loop throttle valve response time detection method |
| CN104819832B (en) * | 2015-04-24 | 2017-07-28 | 无锡隆盛科技股份有限公司 | The detection method of open loop air throttle response time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20120323 |