CN204066571U - The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle - Google Patents
The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle Download PDFInfo
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- CN204066571U CN204066571U CN201320859969.5U CN201320859969U CN204066571U CN 204066571 U CN204066571 U CN 204066571U CN 201320859969 U CN201320859969 U CN 201320859969U CN 204066571 U CN204066571 U CN 204066571U
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- 238000004088 simulation Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 238000002474 experimental method Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004148 unit process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
本实用新型公开一种汽车发动机节气门压控变频电机模拟实验系统，包括：交流电源，给整个模拟实验系统提供交流电；变频器，其输入端与所述交流电源的输出端连接以将所述交流电进行变频处理形成三相交流电；电动机，与所述变频器的输出端电性连接以接通电源并驱动模拟电动机转速齿轮转动；曲轴位置传感器，包括传感器磁头和信号转子，所述信号转子设置在所述模拟电动机转速齿轮上以检测所述电动机转速；开关电源和数字频率计，开关电源连接在交流电源和数字频率计之间，数字频率计进一步与所述曲轴位置传感器的信号输出端连接。本实用新型通过变频器控制电动机，能够高精度的模拟出实验所需的发动机模拟转速，提高了实验的精确度及可操作性。
The utility model discloses an automobile engine throttle voltage-controlled frequency conversion motor simulation experiment system, comprising: an AC power supply, which provides AC power for the entire simulation experiment system; a frequency converter, whose input end is connected with the output end of the AC power supply to connect the The alternating current undergoes frequency conversion processing to form a three-phase alternating current; the motor is electrically connected to the output end of the frequency converter to turn on the power supply and drives the analog motor speed gear to rotate; the crankshaft position sensor includes a sensor magnetic head and a signal rotor, and the signal rotor is set on the analog motor speed gear to detect the motor speed; switching power supply and digital frequency meter, the switching power supply is connected between the AC power supply and the digital frequency meter, and the digital frequency meter is further connected with the signal output end of the crankshaft position sensor . The utility model controls the motor through the frequency converter, and can simulate the simulated rotational speed of the engine required by the experiment with high precision, thereby improving the accuracy and operability of the experiment.
Description
Technical field
The utility model relates to the voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle.
Background technology
In electromechanical teaching experiment, engine electric-controlled system experimental provision is absolutely necessary one of practice course.Existing engine electric-controlled system experimental provision generally all adopts common DC motor, the rotating speed of direct current generator is regulated by the voltage changing direct current generator, motor in some experimental provision does not even possess speed-regulating function, experiment content is too simple, differ greatly with the working condition of actual engine, be unfavorable for that student grasps better and understands corresponding knowledge.
Utility model content
The technical matters that the utility model mainly solves is to provide the voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle, adopt the voltage-controlled technology of frequency conversion, pass through inverter control motor, make the linear change of voltage of frequency converter out-put supply frequency and described Measuring opening signal, described crankshaft position sensor and CMPS Camshaft Position Sensor can detect motor speed and cylinder piston position, and detection signal is sent to electronic control unit process, ensure that whole system runs well; High-precisionly can simulate the simulation of engine rotating speed needed for experiment, improve degree of accuracy and the operability of experiment.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of automotive engine throttle voltage-controlled variable-frequency motor experimental system for simulating, comprising: AC power, provide alternating current to whole experimental system for simulating; Frequency converter, its input end is connected with the output terminal of described AC power and forms three-phase alternating current so that described alternating current is carried out frequency-conversion processing; Motor, is electrically connected to switch on power with the output terminal of described frequency converter and drives simulating motor rotating speed pinion rotation; Crankshaft position sensor, comprises transducer magnetic head and signal rotor, and described signal rotor is arranged on described simulating motor rotating speed gear to detect described motor speed; Switching Power Supply and digital frequency meter, described Switching Power Supply is connected between described AC power and described digital frequency meter, and described digital frequency meter is connected with the signal output part of described crankshaft position sensor further.
In the utility model preferred embodiment, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit.
In the utility model preferred embodiment, described experimental system for simulating comprises the CMPS Camshaft Position Sensor detecting cylinder piston position further, and signal output part and the described electronic control unit of described CMPS Camshaft Position Sensor are electrically connected.
In the utility model preferred embodiment, described experimental system for simulating comprises further: electronic throttle pot, detects the aperture size of automotive engine throttle and exports Measuring opening signal; Voltage control signal treatment circuit, is connected between described electronic throttle pot and described frequency converter, to receive described Measuring opening signal, the Measuring opening signal after process is sent to frequency converter.
In the utility model preferred embodiment, the aperture size of the air throttle of described motor car engine is directly proportional to the voltage swing of described Measuring opening signal.
In the utility model preferred embodiment, the electric energy output end of the potentiometric power input of described electronic throttle and described Switching Power Supply is electrically connected.
In the utility model preferred embodiment, described experimental system for simulating comprises digital voltmeter further, and the test side of described digital voltmeter and the potentiometric output terminal of electronic throttle are electrically connected.
The beneficial effects of the utility model are: the utility model adopts the voltage-controlled technology of frequency conversion, pass through inverter control motor, make the linear change of voltage of frequency converter out-put supply frequency and described Measuring opening signal, described crankshaft position sensor and CMPS Camshaft Position Sensor can detect motor speed and cylinder piston position, and detection signal is sent to electronic control unit process, ensure that whole system runs well; High-precisionly can simulate the simulation of engine rotating speed needed for experiment, improve degree of accuracy and the operability of experiment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the electrical block diagram of the utility model one preferred embodiment.
In accompanying drawing, the mark of each parts is as follows: V
aC, AC power; M, motor; ECU, electronic control unit; 1, simulating motor rotating speed gear.
Embodiment
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model embodiment comprises:
The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle, comprising: AC power V
aC, provide alternating current to whole experimental system for simulating; Frequency converter, its input end and described AC power V
aCoutput terminal connect with described alternating current is carried out frequency-conversion processing formed three-phase alternating current; Motor M, is electrically connected to switch on power with the output terminal of described frequency converter and drives simulating motor rotating speed gear 1 to rotate; Crankshaft position sensor, comprises transducer magnetic head and signal rotor, and described signal rotor is arranged on described simulating motor rotating speed gear to detect described motor M rotating speed; Switching Power Supply and digital frequency meter, described Switching Power Supply is connected to described AC power V
aCwith between described digital frequency meter, described digital frequency meter is connected with the signal output part of described crankshaft position sensor further.
Wherein, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit ECU.
Experimental system for simulating described in the utility model comprises the CMPS Camshaft Position Sensor detecting cylinder piston position further, and signal output part and the described electronic control unit ECU of described CMPS Camshaft Position Sensor are electrically connected.
Described experimental system for simulating comprises further: electronic throttle pot, detects the aperture size of automotive engine throttle and exports Measuring opening signal; Voltage control signal treatment circuit, is connected between described electronic throttle pot and described frequency converter, to receive described Measuring opening signal, the Measuring opening signal after process is sent to frequency converter.
In the utility model, the aperture size of the air throttle of described motor car engine is directly proportional to the voltage swing of described Measuring opening signal.The electric energy output end of the potentiometric power input of described electronic throttle and described Switching Power Supply is electrically connected.
Described experimental system for simulating comprises digital voltmeter further, and the test side of described digital voltmeter and the potentiometric output terminal of electronic throttle are electrically connected.
The utility model adopts the voltage-controlled technology of frequency conversion, by inverter control motor M, make the linear change of voltage of frequency converter out-put supply frequency and described Measuring opening signal, described crankshaft position sensor and CMPS Camshaft Position Sensor can detect motor M rotating speed and cylinder piston position, and detection signal is sent to electronic control unit ECU process, ensure that whole system runs well.
In this enforcement, under this Frequency Converter Control mode can make motor operate in the pole slow-speed of revolution of several hertz, the signal waveform that engine crankshaft position sensor sends clearly can be observed with oscillograph, high-precisionly can simulate the simulation of engine rotating speed needed for experiment, increase substantially degree of accuracy and the operability of experiment.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859969.5U CN204066571U (en) | 2013-12-25 | 2013-12-25 | The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859969.5U CN204066571U (en) | 2013-12-25 | 2013-12-25 | The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle |
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| Publication Number | Publication Date |
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| CN204066571U true CN204066571U (en) | 2014-12-31 |
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| CN201320859969.5U Expired - Lifetime CN204066571U (en) | 2013-12-25 | 2013-12-25 | The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700313A (en) * | 2013-12-25 | 2014-04-02 | 苏州工业园区职业技术学院 | Voltage-controlled variable-frequency motor simulation experiment system for automotive engine throttle |
-
2013
- 2013-12-25 CN CN201320859969.5U patent/CN204066571U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700313A (en) * | 2013-12-25 | 2014-04-02 | 苏州工业园区职业技术学院 | Voltage-controlled variable-frequency motor simulation experiment system for automotive engine throttle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |