CN106645783A - System and method for detecting rotation speed of supercharger based on magnetoelectric sensor - Google Patents
System and method for detecting rotation speed of supercharger based on magnetoelectric sensor Download PDFInfo
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- CN106645783A CN106645783A CN201611123045.3A CN201611123045A CN106645783A CN 106645783 A CN106645783 A CN 106645783A CN 201611123045 A CN201611123045 A CN 201611123045A CN 106645783 A CN106645783 A CN 106645783A
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- Prior art keywords
- magnetoelectric sensor
- chip microcomputer
- supercharger
- circuit
- signal conditioning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supercharger (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention provides a system and a method for detecting the rotation speed of a supercharger based on a magnetoelectric sensor. The system for detecting the rotation speed of a supercharge based on a magnetoelectric sensor comprises a magnetoelectric sensor, a signal conditioning circuit, a single-chip microcomputer and a rotation speed display circuit, and is characterized in that the magnetoelectric sensor is connected to an input end of the signal conditioning circuit, an output end of the signal conditioning circuit is connected to a signal acquisition module in the single-chip microcomputer, the signal acquisition module, a filtering module and an I/O module are sequentially connected in the single-chip microcomputer, and the filtering module is connected to the rotation speed display circuit through the I/O module. The beneficial effects are that the rotation speed of the supercharger can be detected quickly and accurately in a full range of the rotation speed of the supercharger, the power of an internal combustion engine is improved, and fault diagnosis for the supercharger is assisted.
Description
Technical field
The invention belongs to supercharger speed detection technique field, more particularly, to a kind of supercharging based on magnetoelectric sensor
Device rotary speed detecting system and method.
Background technology
Can supercharger speed be to weigh internal combustion engine obtain expected pressurized effect, to reach ideal output power and system event
One of critical technical parameter of barrier diagnosis.In diesel engine running, supercharger speed goes to hundreds of thousands and turns per minute tens
Between change, such high rotating speed, it is interior on a large scale measure, it is undoubtedly right and with scene sharp pounding and electromagnetic interference
Measurement causes very highly difficult.Therefore, it is necessary to study quick and precisely measure supercharger when how in bench test or maintenance
Rotating speed.
The content of the invention
In view of this, it is contemplated that proposing a kind of supercharger speed detecting system and side based on magnetoelectric sensor
Method, with the weak point for solving the above problems, satisfaction being capable of quick detection supercharger speed in supercharger speed gamut.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
A kind of supercharger speed detecting system based on magnetoelectric sensor, including magnetoelectric sensor, signal condition electricity
Road, single-chip microcomputer and rotating speed display circuit, the magnetoelectric sensor is connected to the input of signal conditioning circuit, and the signal is adjusted
The outfan of reason circuit is connected to the signal acquisition module in single-chip microcomputer, signal acquisition module, filtering mould in the single-chip microcomputer
Block and I/O modules are sequentially connected, and the filter single-chip microcomputer connects rotating speed display circuit by I/O modules.
Further, single order high-pass filtering circuit, operational amplifier, hysteresis are connected with turn in the signal conditioning circuit
Comparator and switch triode circuit.
Further, the signal conditioning circuit, single-chip microcomputer and rotating speed display circuit are connected with power module.
Further, the power module turns DC-isolation formula single-chip switching power supply for exchange.
Further, the single-chip microcomputer is C8051F310.
Another embodiment of the present invention additionally provides a kind of supercharger speed detection method based on magnetoelectric sensor, institute
State based on the supercharger speed detection method of magnetoelectric sensor, comprise the following steps：
A. the tach signal cycle is obtained by the PCA capture modules of single-chip microcomputer；
B. by the comparison of signal period and filtering threshold bound, it is determined that being to calculate to turn using cycle test method or Measuring Frequency Method
Speed；
C. the frequency filtering of different rotating speeds is calculated；
D. rotating speed is filtered；
E. next circulation starts to step D to move in circles execution again from step A.
Relative to prior art, the supercharger speed detecting system and method based on magnetoelectric sensor of the present invention
Have the advantage that：
(1) the supercharger speed detecting system and method based on magnetoelectric sensor of the present invention can be in supercharger
In rotating speed gamut, the rotating speed of supercharger is quick and precisely measured, realize that power of IC engine is lifted and hydraulic booster fault diagnosis；
(2) in the supercharger speed detection method based on magnetoelectric sensor of the present invention tach signal filtering frequency
Rate takes different values according to the change of rotating speed, improves slow-speed of revolution area and high rotating speed area tach signal acquisition precision.
Description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the detection means schematic diagram described in the embodiment of the present invention；
Fig. 2 is the signal conditioning circuit module diagram described in the embodiment of the present invention；
Fig. 3 is the detection method flow chart described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment and the feature in embodiment in the present invention can phase
Mutually combination.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " connected ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or it is integrally connected；It can be machine
Tool connects, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection inside part.For the ordinary skill in the art, by concrete condition above-mentioned term can be understood at this
Concrete meaning in bright.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
As shown in figure 1, a kind of supercharger speed detecting system based on magnetoelectric sensor, including magnetoelectric sensor,
Signal conditioning circuit, single-chip microcomputer and rotating speed display circuit, the magnetoelectric sensor is connected to the input of signal conditioning circuit,
The outfan of the signal conditioning circuit is connected to the signal acquisition module in single-chip microcomputer, the signals collecting mould in the single-chip microcomputer
Block, filtration module and I/O modules are sequentially connected, and the filter single-chip microcomputer connects rotating speed display circuit by I/O modules.
As shown in Fig. 2 the signal of the magnetoelectric sensor passes sequentially through the single order high-pass filtering in signal conditioning circuit
Square-wave signal is formed after circuit, operational amplifier, hysteresis loop comparator and switch triode circuit, accurately pickup magnetoelectric tachometric is passed
The faint voltage signal of sensor output.
The signal conditioning circuit, single-chip microcomputer and rotating speed display circuit are connected with power module.
The power module turns DC-isolation formula single-chip switching power supply for exchange, for improving the suitability of detecting system,
Meet the power demands of signal conditioning circuit, single-chip microcomputer and rotating speed display circuit.
The single-chip microcomputer is C8051F310.
Another embodiment of the present invention additionally provides a kind of supercharger speed detection method based on magnetoelectric sensor, such as
Shown in Fig. 3, the supercharger speed detection method based on magnetoelectric sensor is comprised the following steps：
A. the tach signal cycle is obtained by the PCA capture modules of single-chip microcomputer；
B. by the comparison of signal period and filtering threshold bound, it is determined that being to calculate to turn using cycle test method or Measuring Frequency Method
Speed；
C. the frequency filtering of different rotating speeds is calculated；
D. rotating speed is filtered；
E. next circulation starts to step D to move in circles execution again from step A.
The operation principle of the present embodiment is as follows：
The weak voltage signals of magnetoelectric tachometric transducer output are accurately picked up by signal conditioning circuit；Further to carry
High and low rotating speed area and high rotating speed area tach signal acquisition precision, the frequency filtering of tach signal takes not according to the change of rotating speed in software
Same value.Make speed error minimum by way of the interference resistance and software filtering of hardware circuit.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (6)
1. a kind of supercharger speed detecting system based on magnetoelectric sensor, it is characterised in that：Including magnetoelectric sensor, letter
Number modulate circuit, single-chip microcomputer and rotating speed display circuit, the magnetoelectric sensor is connected to the input of signal conditioning circuit, institute
State the signal acquisition module that the outfan of signal conditioning circuit is connected in single-chip microcomputer, the signals collecting mould in the single-chip microcomputer
Block, filtration module and I/O modules are sequentially connected, and the filter single-chip microcomputer connects rotating speed display circuit by I/O modules.
2. a kind of supercharger speed detecting system based on magnetoelectric sensor according to claim 1, it is characterised in that：
It is connected with single order high-pass filtering circuit, operational amplifier, three poles of hysteresis loop comparator and switch in the signal conditioning circuit in turn
Pipe circuit.
3. a kind of supercharger speed detecting system based on magnetoelectric sensor according to claim 1, it is characterised in that：
The signal conditioning circuit, single-chip microcomputer and rotating speed display circuit are connected with power module.
4. a kind of supercharger speed detecting system based on magnetoelectric sensor according to claim 3, it is characterised in that：
The power module turns DC-isolation formula single-chip switching power supply for exchange.
5. a kind of supercharger speed detecting system based on magnetoelectric sensor according to claim 1, it is characterised in that：
The single-chip microcomputer is C8051F310.
6. a kind of supercharger speed detection method based on magnetoelectric sensor, it is characterised in that：It is described to be sensed based on magneto-electric
The supercharger speed detection method of device, comprises the following steps：
A. the tach signal cycle is obtained by the PCA capture modules of single-chip microcomputer；
B. by the comparison of signal period and filtering threshold bound, it is determined that being to calculate rotating speed using cycle test method or Measuring Frequency Method；
C. the frequency filtering of different rotating speeds is calculated；
D. rotating speed is filtered；
E. next circulation starts to step D to move in circles execution again from step A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123045.3A CN106645783A (en) | 2016-12-08 | 2016-12-08 | System and method for detecting rotation speed of supercharger based on magnetoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123045.3A CN106645783A (en) | 2016-12-08 | 2016-12-08 | System and method for detecting rotation speed of supercharger based on magnetoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106645783A true CN106645783A (en) | 2017-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611123045.3A Pending CN106645783A (en) | 2016-12-08 | 2016-12-08 | System and method for detecting rotation speed of supercharger based on magnetoelectric sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374916A (en) * | 2018-09-06 | 2019-02-22 | 芜湖职业技术学院 | A kind of low power consumption electric motor speed detector |
| CN114859071A (en) * | 2022-06-14 | 2022-08-05 | 北京斯年智驾科技有限公司 | Wheel speed acquisition module, device and method |
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| CN101324633A (en) * | 2008-07-25 | 2008-12-17 | 清华大学 | Rotary speed sensor with bus interface for automobile |
| CN101382561A (en) * | 2008-10-15 | 2009-03-11 | 北京航空航天大学 | Tacheometry apparatus for microminiature turbojet |
| CN101545916A (en) * | 2008-03-26 | 2009-09-30 | 凯迈(洛阳)机电有限公司 | Measurement circuit and measurement method for rotation speed of CW type electric eddy current dynamometer |
| CN101833012A (en) * | 2010-04-29 | 2010-09-15 | 中国燃气涡轮研究院 | Turbocharger rotational speed measuring instrument and method |
| CN102200541A (en) * | 2010-03-24 | 2011-09-28 | 中国科学院自动化研究所 | Method and device for measuring rotating speed of motor |
| CN106771317A (en) * | 2017-01-06 | 2017-05-31 | 中国核动力研究设计院 | A kind of reactor coolant pump rotating speed measurement method |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545916A (en) * | 2008-03-26 | 2009-09-30 | 凯迈(洛阳)机电有限公司 | Measurement circuit and measurement method for rotation speed of CW type electric eddy current dynamometer |
| CN101324633A (en) * | 2008-07-25 | 2008-12-17 | 清华大学 | Rotary speed sensor with bus interface for automobile |
| CN101382561A (en) * | 2008-10-15 | 2009-03-11 | 北京航空航天大学 | Tacheometry apparatus for microminiature turbojet |
| CN102200541A (en) * | 2010-03-24 | 2011-09-28 | 中国科学院自动化研究所 | Method and device for measuring rotating speed of motor |
| CN101833012A (en) * | 2010-04-29 | 2010-09-15 | 中国燃气涡轮研究院 | Turbocharger rotational speed measuring instrument and method |
| CN106771317A (en) * | 2017-01-06 | 2017-05-31 | 中国核动力研究设计院 | A kind of reactor coolant pump rotating speed measurement method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374916A (en) * | 2018-09-06 | 2019-02-22 | 芜湖职业技术学院 | A kind of low power consumption electric motor speed detector |
| CN114859071A (en) * | 2022-06-14 | 2022-08-05 | 北京斯年智驾科技有限公司 | Wheel speed acquisition module, device and method |
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