CN103174524A - Electronic throttle valve control system - Google Patents
Electronic throttle valve control system Download PDFInfo
- Publication number
- CN103174524A CN103174524A CN 201110430195 CN201110430195A CN103174524A CN 103174524 A CN103174524 A CN 103174524A CN 201110430195 CN201110430195 CN 201110430195 CN 201110430195 A CN201110430195 A CN 201110430195A CN 103174524 A CN103174524 A CN 103174524A
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- Prior art keywords
- accelerator pedal
- triode
- throttle
- chip microcomputer
- throttle valve
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- 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.)
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses an electronic throttle valve control system which comprises an accelerator pedal module, a single chip microcomputer, a motor-drive circuit and a throttle body. The throttle body comprises a direct current motor, a throttle valve and a throttle position sensor, an analog-to-digital (A/ D) converter is embedded in the single chip microcomputer, the position signals of the accelerator pedal module are converted to voltage signals and the voltage signals are input in the single chip microcomputer through the A/ D converter, the single chip microcomputer figures out the proper opening of the throttle body according to the position of the accelerator pedal and the signals of other node sensors and sends out control signals to the motor-drive circuit to drive the direct current circuit to drive the throttle valve to the proper opening, the throttle position sensor is connected with a control unit, and thus the feedback of throttle position signals is achieved. According to the electronic throttle valve control system, by means of the above method, the opening of the throttle valve can be adjusted in real time according to the working condition of a motor, the driving state of an automobile and the like, and thus the motor works in an optimal state. Further, the electronic throttle valve control system has the advantages of high response speed and high reliability.
Description
Technical field
The present invention relates to the gas control field, particularly relate to a kind of control system of electronic throttle valve.
Background technique
Be connected by drag-line (bar) between traditional closure and accelerator pedal, the aperture of closure is controlled by accelerator pedal by the driver fully.This mechanical control method can only make electronic engine management system fully by the work of driver to the operation control engine of accelerator pedal, can not guarantee that the working state of motor and the runnability of automobile form best coupling.
At present, control system of electronic throttle valve progressively replaces traditional mechanical throttle valve control system, but the driver part of throttle actuator mainly adopts stepper motor and two kinds of patterns of direct current generator.Stepper motor has higher position characteristic, but high speed performance is relatively poor; When using direct current generator, the forward of throttle body is controlled with anti-phase output adopted identical controlling method, because cutting down in the process of different direction rotation, closure rotates the range size difference, cause the clockwise and anticlockwise model different, forward adopts identical controlling method with direction, although must cause controlling on certain direction and can in time the aperture of throttler valve be controlled at the aperture of expectation, although also throttler valve can be controlled at the aperture of expectation but control on other direction, so the time will extend, cause corresponding speed slow.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of control system of electronic throttle valve, can make real-time adjusting to the aperture of closure according to the operating mode of motor, the travelling state of automobile etc., motor is worked under optimal state, and motor-drive circuit adopts H bridge drive circuit, the control of realization to direct current generator forward and backward state makes control system of electronic throttle valve have fast response time, reliability highland characteristics.
for solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of control system of electronic throttle valve is provided, comprise: the accelerator pedal module, single-chip microcomputer, motor-drive circuit, throttle body, described throttle body comprises direct current generator, closure and throttle position sensor, the embedded A/D converter of described single-chip microcomputer, the position signal that described accelerator pedal module will speed up pedal by A/D converter is converted to voltage signal and is input to single-chip microcomputer, described single-chip microcomputer goes out the due aperture of throttle body according to the calculated signals of accelerator pedal position and other node sensors, then send control signal to motor-drive circuit, drive direct current generator and drive closure to corresponding aperture, described throttle position sensor connects A/D converter, realize the feedback of throttle position signal, described motor-drive circuit adopts H bridge drive circuit, comprise: the first triode, the second triode, the 3rd triode, the 4th triode, produce positive torque during the conducting simultaneously of described the first triode and the 4th triode and control the direct current generator forward rotation, produce reactive torque during the conducting simultaneously of described the second triode and the 3rd triode and control the direct current generator backward rotation.
In a preferred embodiment of the present invention, described accelerator pedal module comprises accelerator pedal and accelerator pedal position sensor, described accelerator pedal position sensor adopts dual potentineter formula sensor, be arranged on the accelerator pedal inside modules, exporting simultaneously two sizes changes in the same way, but change the different voltage signal of slope, for detection of the change in location of accelerator pedal.
In a preferred embodiment of the present invention, described throttle position sensor adopts contactless two-way potentiometric pick-up, and when throttle opening changed, two voltage signals of output were that direction changes.
In a preferred embodiment of the present invention, described single-chip microcomputer adopts the 80C196KC chip.
In a preferred embodiment of the present invention, described single-chip microcomputer is embedded PWM output module also, and described PWM output module is connected with motor-drive circuit, and by throttle body, the closure feedback signal is passed to A/D converter.
The invention has the beneficial effects as follows: the present invention can make real-time adjusting to the aperture of closure according to the operating mode of motor, the travelling state of automobile etc., and motor is worked under optimal state, and has fast response time, characteristics that reliability is high.
Description of drawings
Fig. 1 is the structured flowchart schematic diagram of control system of electronic throttle valve of the present invention;
The driving principle schematic diagram of the direct current generator of Fig. 2 shown in being;
In accompanying drawing, the mark of each parts is as follows: accelerator pedal module 1, throttle body 2.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
see also Fig. 1, the embodiment of the present invention comprises: accelerator pedal module 1, single-chip microcomputer 80C196KC, motor-drive circuit, throttle body 2, the embedded A/D converter of single-chip microcomputer and PWM modulation module, accelerator pedal module 1 comprises accelerator pedal and accelerator pedal position sensor, accelerator pedal position sensor will be delivered to A/D converter from the position signal that accelerator pedal is responded to, the torque request of reflection driver to direct current generator, by A/D converter, position signal is converted to corresponding voltage signal and is input to single-chip microcomputer, single-chip microcomputer goes out the due aperture of throttle body 2 according to the calculated signals of accelerator pedal position and other node sensors, by after the PWM modulation module, motor-drive circuit being exported control signal, throttle body 2 comprises: direct current generator, closure and throttle position sensor, direct current generator is connected with motor-drive circuit, motor-drive circuit sends the driving signal to direct current generator, drive throttle body 2 to corresponding aperture, throttle position sensor connects A/D converter, throttle position signal is fed back to single-chip microcomputer.
Throttle position sensor adopts contactless two-way potentiometric pick-up, and when throttle opening changed, two voltage signals of output were inverse change, have improved the control accuracy of single-chip microcomputer to throttle position.
Accelerator pedal position sensor adopts dual potentineter formula sensor, is arranged on the accelerator pedal inside modules, exports simultaneously two sizes and changes in the same way, but change the different voltage signal of slope, for detection of the change in location of accelerator pedal, improves measuring accuracy.
See also Fig. 2, motor-drive circuit adopts H bridge drive circuit, comprise triode Q1, triode Q2, triode Q3 and triode Q4, triode Q1 and triode Q4 are one group, triode Q2 and triode Q3 are another group, the synchronous conducting of the triode of same group or shutoff, not on the same group triode conducting with turn-off just in time opposite.When triode Q1 and triode Q4 conducting simultaneously, when triode Q2 and triode Q3 ended simultaneously, the circuit direction was as shown in A, and direct current generator produces positive torque; When triode Q2 and triode Q3 conducting simultaneously, when triode Q1 and triode Q4 ended simultaneously, current direction was as shown in B, and motor produces reactive torque, and H bridge drive circuit realizes controlling the clockwise and anticlockwise of direct current generator.
Be different from prior art, the drive motor circuit of control system of electronic throttle valve of the present invention adopts H bridge drive circuit, controls the clockwise and anticlockwise of direct current generator, makes motor work under optimal state, and has fast response time, reliability highland characteristics.
the working principle of control system of electronic throttle valve of the present invention: accelerator pedal position sensor will be delivered to A/D converter from the position signal that accelerator pedal is responded to, by A/D converter, position signal is converted to corresponding voltage signal and is input to single-chip microcomputer, single-chip microcomputer goes out the due aperture of throttle body 2 according to the calculated signals of accelerator pedal position and other node sensors, by after the PWM modulation module, motor-drive circuit being exported control signal, motor-drive circuit sends the driving signal to direct current generator, drive throttle body 2 to corresponding aperture, throttle position sensor connects A/D converter, throttle position signal is fed back to single-chip microcomputer, realize closed loop control.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (5)
1. control system of electronic throttle valve, comprise: the accelerator pedal module, single-chip microcomputer, motor-drive circuit, throttle body, described throttle body comprises direct current generator, closure and throttle position sensor, the embedded A/D converter of described single-chip microcomputer, the position signal that described accelerator pedal module will speed up pedal by A/D converter is converted to voltage signal and is input to single-chip microcomputer, described single-chip microcomputer goes out the due aperture of throttle body according to the calculated signals of accelerator pedal position and other node sensors, then send control signal to motor-drive circuit, drive direct current generator and drive closure to corresponding aperture, described throttle position sensor connects A/D converter, realize the feedback of throttle position signal, it is characterized in that, described motor-drive circuit adopts H bridge drive circuit, comprise: the first triode, the second triode, the 3rd triode, the 4th triode, produce positive torque during the conducting simultaneously of described the first triode and the 4th triode and control the direct current generator forward rotation, produce reactive torque during the conducting simultaneously of described the second triode and the 3rd triode and control the direct current generator backward rotation.
2. control system of electronic throttle valve according to claim 1, it is characterized in that, described accelerator pedal module comprises accelerator pedal and accelerator pedal position sensor, described accelerator pedal position sensor adopts dual potentineter formula sensor, be arranged on the accelerator pedal inside modules, export simultaneously two sizes and change in the same way, but change the different voltage signal of slope, for detection of the change in location of accelerator pedal.
3. control system of electronic throttle valve according to claim 1, is characterized in that, described throttle position sensor adopts contactless two-way potentiometric pick-up, and when throttle opening changed, two voltage signals of output were inverse change.
4. control system of electronic throttle valve according to claim 1, is characterized in that, described single-chip microcomputer adopts the 80C196KC chip.
5. control system of electronic throttle valve according to claim 1, it is characterized in that, described single-chip microcomputer is embedded PWM output module also, and described PWM output module is connected with motor-drive circuit, and by throttle body, the closure feedback signal is passed to A/D converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110430195 CN103174524A (en) | 2011-12-21 | 2011-12-21 | Electronic throttle valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110430195 CN103174524A (en) | 2011-12-21 | 2011-12-21 | Electronic throttle valve control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174524A true CN103174524A (en) | 2013-06-26 |
Family
ID=48634635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110430195 Withdrawn CN103174524A (en) | 2011-12-21 | 2011-12-21 | Electronic throttle valve control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174524A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791114A (en) * | 2015-03-11 | 2015-07-22 | 奇瑞汽车股份有限公司 | Throttle percentage adjusting method and device |
| CN104912673A (en) * | 2015-06-16 | 2015-09-16 | 湘电重型装备有限公司 | Electric drive accelerator controller |
| CN107339162A (en) * | 2017-09-01 | 2017-11-10 | 合肥工业大学 | A kind of control system of electronic throttle valve for university student's equation motorcycle race |
| TWI639767B (en) * | 2015-10-23 | 2018-11-01 | 蔡維倫 | Vehicle throttle locking circuit and method |
| CN112857818A (en) * | 2019-11-12 | 2021-05-28 | 广州汽车集团股份有限公司 | Accelerator pedal control device and method |
-
2011
- 2011-12-21 CN CN 201110430195 patent/CN103174524A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791114A (en) * | 2015-03-11 | 2015-07-22 | 奇瑞汽车股份有限公司 | Throttle percentage adjusting method and device |
| CN104791114B (en) * | 2015-03-11 | 2017-03-15 | 奇瑞汽车股份有限公司 | A kind of method and apparatus of adjustment throttle opening |
| CN104912673A (en) * | 2015-06-16 | 2015-09-16 | 湘电重型装备有限公司 | Electric drive accelerator controller |
| TWI639767B (en) * | 2015-10-23 | 2018-11-01 | 蔡維倫 | Vehicle throttle locking circuit and method |
| CN107339162A (en) * | 2017-09-01 | 2017-11-10 | 合肥工业大学 | A kind of control system of electronic throttle valve for university student's equation motorcycle race |
| CN112857818A (en) * | 2019-11-12 | 2021-05-28 | 广州汽车集团股份有限公司 | Accelerator pedal control device and method |
| CN112857818B (en) * | 2019-11-12 | 2023-05-30 | 广州汽车集团股份有限公司 | Accelerator pedal control device and method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20130626 |