CN103700313A - Voltage-controlled variable-frequency motor simulation experiment system for automotive engine throttle - Google Patents
Voltage-controlled variable-frequency motor simulation experiment system for automotive engine throttle Download PDFInfo
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- CN103700313A CN103700313A CN201310723314.XA CN201310723314A CN103700313A CN 103700313 A CN103700313 A CN 103700313A CN 201310723314 A CN201310723314 A CN 201310723314A CN 103700313 A CN103700313 A CN 103700313A
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Abstract
The invention discloses a voltage-controlled variable-frequency motor simulation experiment system for an automotive engine throttle. The simulation experiment system comprises an alternating-current (AC) power supply, a frequency converter, a motor, a crankshaft position sensor, a switching power supply and a digital frequency meter, wherein the AC power supply is used for supplying an AC to a whole simulation experiment system; an input terminal of the frequency converter is connected with an output terminal of the AC power supply, so as to form a three-phase AC through carrying out frequency conversion processing on the AC; the motor is electrically connected with an output terminal of the frequency converter, so as to put through the power supply and drive a motor revolution rate simulation gear to rotate; the crankshaft position sensor comprises a sensor magnetic head and a signal rotor, and the signal rotor is arranged on the motor revolution rate simulation gear, so as to test the revolution rate of the motor; 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 a signal output terminal of the crankshaft position sensor. According to the simulation experiment system, the motor is controlled by the frequency converter, so that simulated engine revolution rate required by an experiment can be simulated in a high-precision manner, and the accuracy and operability of the experiment are improved.
Description
Technical field
The present invention relates to the voltage-controlled variable-frequency motor experimental system for simulating of a kind of motor car engine air throttle.
Background technology
In electromechanical teaching experiment, engine electric-controlled system experimental provision one of the practice course that is absolutely necessary.Existing engine electric-controlled system experimental provision generally all adopts common DC motor, by changing the voltage of direct current generator, regulate the rotating speed of 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.
Summary of the invention
The technical matters that the present invention mainly solves is to provide the voltage-controlled variable-frequency motor experimental system for simulating of a kind of motor car engine air throttle, adopt the voltage-controlled technology of frequency conversion, pass through inverter control motor, make the linear variation 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 processing, guarantee that whole system runs well; Can high-precisionly simulate the required simulation of engine rotating speed of experiment, improve degree of accuracy and the operability of experiment.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of motor car engine air throttle voltage-controlled variable-frequency motor experimental system for simulating, comprising: AC power, and alternating current is provided to whole experimental system for simulating; Frequency converter, its input end is connected described alternating current to be carried out to frequency-conversion processing formation three-phase alternating current with the output terminal of described AC power; Motor, is electrically connected to switch on power and drives simulating motor rotating speed gear to rotate with the output terminal of described frequency converter; 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 further connected with the signal output part of described crankshaft position sensor.
In a preferred embodiment of the present invention, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit.
In a preferred embodiment of the present invention, described experimental system for simulating further comprises the CMPS Camshaft Position Sensor that detects cylinder piston position, and the signal output part of described CMPS Camshaft Position Sensor and described electronic control unit are electrically connected.
In a preferred embodiment of the present invention, described experimental system for simulating further comprises: electronic throttle pot, detects the aperture size of motor car engine air throttle and exports Measuring opening signal; Voltage-controlled signal processing circuit, is connected between described electronic throttle pot and described frequency converter, to receive described Measuring opening signal, the Measuring opening signal after processing is sent to frequency converter.
In a preferred embodiment of the present invention, the aperture of the air throttle of described motor car engine size is directly proportional to the voltage swing of described Measuring opening signal.
In a preferred embodiment of the present invention, the electric energy output end of the potentiometric power input of described electronic throttle and described Switching Power Supply is electrically connected.
In a preferred embodiment of the present invention, described experimental system for simulating further comprises digital voltmeter, and the potentiometric output terminal of the test side of described digital voltmeter and electronic throttle is electrically connected.
The invention has the beneficial effects as follows: the present invention adopts the voltage-controlled technology of frequency conversion, pass through inverter control motor, make the linear variation 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 processing, guarantee that whole system runs well; Can high-precisionly simulate the required simulation of engine rotating speed of 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 embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the electrical block diagram of a preferred embodiment of the present invention.
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
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
The voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle, comprising: AC power V
aC, alternating current is provided to whole experimental system for simulating; Frequency converter, its input end and described AC power V
aCoutput terminal connect described alternating current is carried out to frequency-conversion processing and form three-phase alternating current; Motor M, is electrically connected to switch on power and drives simulating motor rotating speed gear 1 to rotate with the output terminal of described frequency converter; 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
aCand between described digital frequency meter, described digital frequency meter is further connected with the signal output part of described crankshaft position sensor.
Wherein, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit ECU.
Experimental system for simulating of the present invention further comprises the CMPS Camshaft Position Sensor that detects cylinder piston position, and the signal output part of described CMPS Camshaft Position Sensor and described electronic control unit ECU are electrically connected.
Described experimental system for simulating further comprises: electronic throttle pot, detects the aperture size of motor car engine air throttle and exports Measuring opening signal; Voltage-controlled signal processing circuit, is connected between described electronic throttle pot and described frequency converter, to receive described Measuring opening signal, the Measuring opening signal after processing is sent to frequency converter.
In the present invention, the aperture of the air throttle of described motor car engine size 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 further comprises digital voltmeter, and the potentiometric output terminal of the test side of described digital voltmeter and electronic throttle is electrically connected.
The present invention adopts the voltage-controlled technology of frequency conversion, by inverter control motor M, make the linear variation 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 processing, guarantee that whole system runs well.
In this enforcement, this Frequency Converter Control mode can make motor operate under the utmost point slow-speed of revolution of several hertz, with oscillograph, can clearly observe the signal waveform that engine crankshaft position sensor sends, can high-precisionly simulate the required simulation of engine rotating speed of experiment, increase substantially degree of accuracy and the operability of experiment.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; 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 invention.
Claims (7)
1. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle, is characterized in that, comprising:
AC power (V
aC), alternating current is provided to whole experimental system for simulating;
Frequency converter, its input end is connected described alternating current to be carried out to frequency-conversion processing formation three-phase alternating current with the output terminal of described AC power;
Motor (M), is electrically connected to switch on power and drives simulating motor rotating speed gear (1) to rotate with the output terminal of described frequency converter;
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 further connected with the signal output part of described crankshaft position sensor.
2. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle according to claim 1, is characterized in that, the signal output part of described crankshaft position sensor is also electrically connected with electronic control unit (ECU).
3. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle according to claim 3, it is characterized in that, described experimental system for simulating further comprises the CMPS Camshaft Position Sensor that detects cylinder piston position, and the signal output part of described CMPS Camshaft Position Sensor and described electronic control unit are electrically connected.
4. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle according to claim 1, is characterized in that, described experimental system for simulating further comprises:
Electronic throttle pot, detects the aperture size of motor car engine air throttle and exports Measuring opening signal;
Voltage-controlled signal processing circuit, is connected between described electronic throttle pot and described frequency converter, to receive described Measuring opening signal, the Measuring opening signal after processing is sent to frequency converter.
5. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle according to claim 5, is characterized in that, the aperture size of the air throttle of described motor car engine is directly proportional to the voltage swing of described Measuring opening signal.
6. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle according to claim 5, is characterized in that, the electric energy output end of the potentiometric power input of described electronic throttle and described Switching Power Supply is electrically connected.
7. the voltage-controlled variable-frequency motor experimental system for simulating of motor car engine air throttle according to claim 5, it is characterized in that, described experimental system for simulating further comprises digital voltmeter, and the test side of described digital voltmeter and electronic throttle pot output terminal are electrically connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310723314.XA CN103700313B (en) | 2013-12-25 | 2013-12-25 | A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310723314.XA CN103700313B (en) | 2013-12-25 | 2013-12-25 | A kind of automotive engine throttle voltage-controlled frequency conversion motor experimental system for simulating |
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| CN103700313A true CN103700313A (en) | 2014-04-02 |
| CN103700313B CN103700313B (en) | 2016-11-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057014A (en) * | 2016-08-10 | 2016-10-26 | 钦州学院 | Automobile throttle valve teaching platform |
| CN107244426A (en) * | 2016-03-25 | 2017-10-13 | 哈尔滨飞机工业集团有限责任公司 | A kind of transporter undercarriage hydraulic pressure testing device |
| CN107782998A (en) * | 2017-11-27 | 2018-03-09 | 重庆长安汽车股份有限公司 | A kind of experimental rig and test method of ECU identifications magneto electric type crankshaft position sensor signal |
| CN115478952A (en) * | 2022-10-05 | 2022-12-16 | 吉林大学 | Gasoline engine electronic control system simulation device and control method thereof |
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| CN204066571U (en) * | 2013-12-25 | 2014-12-31 | 苏州工业园区职业技术学院 | The voltage-controlled variable-frequency motor experimental system for simulating of a kind of automotive engine throttle |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0379393A1 (en) * | 1989-01-12 | 1990-07-25 | Atari Games Corporation | Control device such as a steering wheel for video vehicle simulator with realistic feedback forces |
| EP0522924A1 (en) * | 1991-07-12 | 1993-01-13 | Sextant Avionique | Rotary actuator for generating a resistive torque having an adaptive response characteristic on the steering wheel of a control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244426A (en) * | 2016-03-25 | 2017-10-13 | 哈尔滨飞机工业集团有限责任公司 | A kind of transporter undercarriage hydraulic pressure testing device |
| CN106057014A (en) * | 2016-08-10 | 2016-10-26 | 钦州学院 | Automobile throttle valve teaching platform |
| CN107782998A (en) * | 2017-11-27 | 2018-03-09 | 重庆长安汽车股份有限公司 | A kind of experimental rig and test method of ECU identifications magneto electric type crankshaft position sensor signal |
| CN115478952A (en) * | 2022-10-05 | 2022-12-16 | 吉林大学 | Gasoline engine electronic control system simulation device and control method thereof |
| CN115478952B (en) * | 2022-10-05 | 2023-10-27 | 吉林大学 | Electronic control system simulation device of gasoline engine and control method thereof |
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| CN103700313B (en) | 2016-11-23 |
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Effective date of registration: 20240808 Address after: 274299 East of Quancheng Road South Section, Yongchang Street Office, Chengwu County, Heze City, Shandong Province Patentee after: Shandong Qiming Wind Power Co.,Ltd. Country or region after: China Address before: 215000, No.1 Ruoshui Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: SUZHOU INDUSTRIAL PARK INSTITUTE OF VOCATIONAL TECHNOLOGY Country or region before: China |