CN106249091B - A kind of air door actuator of automobile air-conditioner linearity detector and its detection method - Google Patents
A kind of air door actuator of automobile air-conditioner linearity detector and its detection method Download PDFInfo
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- CN106249091B CN106249091B CN201610912251.6A CN201610912251A CN106249091B CN 106249091 B CN106249091 B CN 106249091B CN 201610912251 A CN201610912251 A CN 201610912251A CN 106249091 B CN106249091 B CN 106249091B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The present invention relates to linearity detection technique fields, especially a kind of air door actuator of automobile air-conditioner linearity detector and its detection method, air door actuator of automobile air-conditioner linearity detector includes data acquisition unit and calculation processing unit, data acquisition unit includes that the precision being connected with air door executer leads modeling potentiometer, air door executer includes actuator potentiometer and performer motor, precision leads modeling potentiometer and is rigidly connected by the shaft of shaft coupling and performer motor, precision is led modeling potentiometer and is rotated synchronously under performer motor drive with actuator potentiometer, calculation processing unit includes constant voltage source, signal conditioning circuit, variable connector, A/D converter, single-chip microcontroller and display.The present invention leads modeling potentiometer synchronous acquisition feedback voltage by precision, then it is analyzed and processed to obtain the linearity error value of air door executer by feedback voltage of the calculation processing unit to air door executer difference test point, realizes the detection of the air door executer linearity.
Description
Technical field
The present invention relates to linearity detection technique fields, especially air door actuator of automobile air-conditioner linearity detector.
Background technique
With advances in technology and improvement of living standard, people are higher and higher to the requirement of vapour environment inside car comfort level, make
Automatic air conditioner system of vehicle is obtained gradually to popularize.The main task of automatic air conditioner system of vehicle is according to various outside setting in the car
The output signal of sensor converts fan to air inlet after ECU is handled, supplies gas and convert fan, blender door, compressor, air blast
Machine etc. carries out automatically controlling, and adjusts environment inside car according to the input instruction of operator, the miniclimate in cabin is made to be maintained at most easypro
Suitable state.Air conditioner damper actuator (is commonly called as air door executer), and main function is to make relevant action according to the instruction of ECU, changes
Become damper positions, switch air quantity, to achieve the purpose that adjust vehicle interior temperature.Air door executer there are many type, wherein motor with
The air door actuator of automobile air-conditioner of potentiometer fabricated structure is by position switch and signal feedback function collection together in an independence
Potentiometer, to keep its structure simple, easy to produce and position feedback precision is high, and Fig. 1 shows such air door and holds
The electrical schematic diagram of row device circuit, pin 1 ' and 3 ' is potentiometer power input in Fig. 1, and pin 2 ' is feedback voltage output end,
Pin 4 ' and 6 ' is electric moter voltage input terminal, and 5 ' be sky foot.Such actuator is high to the linearity of potentiometer, electricity
The performance of position device determines the good and the bad of actuator, in the prior art without for such air door executer linearity error index
Detection device and method.
Summary of the invention
The purpose of the present invention is overcoming defect of the existing technology, a kind of accurate automobile air-conditioning throttle of measurement is provided and is held
Row device linearity detector and its detection method.
In order to achieve the object of the present invention, used technical solution is:
Air door actuator of automobile air-conditioner linearity detector of the invention includes data acquisition unit and calculation processing unit,
The data acquisition unit includes that the precision being connected with air door executer leads modeling potentiometer, and the air door executer includes actuator
Potentiometer and performer motor, the precision lead modeling potentiometer and are rigidly connected by the shaft of shaft coupling and performer motor, institute
It states precision and leads modeling potentiometer and rotated synchronously under performer motor drive with actuator potentiometer, the calculation processing unit includes
Constant voltage source, signal conditioning circuit, variable connector, A/D converter, single-chip microcontroller and display, the constant voltage source are described hold
Row device potentiometer and precision, which lead modeling potentiometer offer stabilized power source voltage Vcc, makes the actuator potentiometer and precision lead modeling current potential
The sliding end feedback voltage of device changes between 0-Vcc, and the voltage signal of the variation is passed to by the signal conditioning circuit
The variable connector, the single-chip microcontroller control A/D converter carry out real-time A/D conversion to two-way feedback voltage signal, and to survey
Tested air door executer linearity error value is calculated by formula in the voltage value obtained, is then shown by the display.
Single-chip microcontroller of the present invention is also connected with PC machine, and the PC machine receives and show the data information of the single-chip microcontroller,
The PC machine is to " feedback voltage-corner " curve for drawing out the air door executer after processing data information and " linearity is missed
Difference-corner " curve.
Precision of the present invention is led modeling potentiometer and is fixedly mounted on testing jig pedestal.
Single-chip microcontroller of the present invention is STC12C5A60S2 single-chip microcontroller.
Device control is driven by motor in performer motor of the present invention.
The present invention also provides a kind of air door actuator of automobile air-conditioner linearity detection methods, use above-mentioned air conditioning for automobiles wind
Door actuator linearity detector, linearity error calculation method the following steps are included:
A. the precision leads the rotation angle of the sliding end feedback voltage of modeling potentiometer and the shaft of performer motor in line
Sexual intercourse, linear equation are as follows:
Wherein, Vj is the dynamic feedback voltage that precision leads modeling potentiometer, and θ is the rotation angle of performer motor, and θ r is essence
It is close to lead the modeling electrical corner of potentiometer；
B. it measures actuator potentiometer and specifies feedback voltage ViHAnd ViLPrecision corresponding to two o'clock leads modeling potentiometer feedback electricity
Press VjHAnd VjL, obtain the ideal line of tested actuator, this linear equation are as follows:
The dynamic point voltage V of modeling potentiometer is led according to the precision measuredjHAnd VjLAnd the accurate electrical rotational angle theta for leading modeling potentiometerr, can
It is V that performer motor, which is obtained, in feedback voltageiH~ViLBetween electrical corner:
In VjLAnd VjHBetween take N number of point, then step-lengthWith Δ VjFor stepping, precision is measured point by point and leads modeling
Potentiometer feedback voltage Vj1, Vj2, Vj3……VjNCorresponding actuator potentiometer each point feedback voltage level Vi1, Vi2, Vi3……
ViN；Wherein Vj1As VjL, VjNAs VjH；
C. byV is calculateds1, Vs2, Vs3……VsN, defined by linearity error
X (1~N of x value) puts linearity error are as follows:
Display display air door executer of the present invention is V in feedback voltageiH~ViLBetween electrical crank degree and
Maximum linear degree error amount, the PC machine receive the data information of single-chip microcontroller, and the PC machine after processing data information to drawing
" feedback voltage-corner " curve and " linearity error-corner " curve of the air door executer detection out.
The beneficial effect of air door actuator of automobile air-conditioner linearity detector and its detection method of the invention is:
(1) air door actuator of automobile air-conditioner linearity detector of the invention by precision lead modeling potentiometer synchronous acquisition it is anti-
Then feedthrough voltage is analyzed and processed to obtain wind by feedback voltage of the calculation processing unit to air door executer difference test point
The linearity error value of door actuator realizes the detection of the air door executer linearity；
(2) air door actuator of automobile air-conditioner linearity detector of the invention leads modeling potentiometer as angular displacement using precision
Sensor detects air door executer linearity error, and detection accuracy is high；
(3) detectable air door executer specifies effective electrical corner between two feedback voltages, Mei Gefeng to detector simultaneously
Door actuator detection data can be uploaded to PC machine, be depicted as curve, can more intuitively observe testing result, while data can adopt
It is saved with document form, inquires and analyze convenient for the later period.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the circuit connection diagram of air door actuator of automobile air-conditioner in the prior art；
Fig. 2 is the functional block diagram of air door actuator of automobile air-conditioner linearity detector of the invention；
Fig. 3 is air door executer test linear relationship schematic diagram of the invention；
Fig. 4 is the voltage curve schematic diagram of air door executer of the invention；
Fig. 5 is the linearity error schematic diagram of air door executer of the invention.
Wherein: precision leads modeling potentiometer 1, actuator potentiometer 2, performer motor 3, constant voltage source 4, variable connector 5, A/
D converter 6, display 7.
Specific embodiment
In the description of the present invention, it is to be understood that, term " radial direction ", " axial direction ", "upper", "lower", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.In the description of the present invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in Fig. 2, the air door actuator of automobile air-conditioner linearity detector of the present embodiment include data acquisition unit and
Calculation processing unit, data acquisition unit include that the precision being connected with air door executer leads modeling potentiometer 1, wherein air door executer
Including actuator potentiometer 2 and performer motor 3, it is rigid by the shaft of shaft coupling and performer motor 3 that precision leads modeling potentiometer 1
Property connection, specifically, precision lead modeling potentiometer 1 be mounted on testing jig pedestal, precision lead modeling potentiometer 1 resistance value regulative mode
To be rotary, change in resistance mode is linear, independent linearity 0.1%, one end of shaft coupling by hexagon socket head cap screw with
The shaft that precision leads modeling potentiometer 1 is fixedly connected, and the other end of shaft coupling turns by hexagon socket head cap screw and performer motor 3
Axis is fixedly connected, and the adjustable part to be measured of hexagon socket head cap screw by turn close to air door executer is inserted into the elastic of shaft coupling
Degree, precision is led modeling potentiometer 1 and is rotated synchronously under the drive of performer motor 3 with actuator potentiometer 2 when detection.
Calculation processing unit in the present embodiment includes constant voltage source 4, signal conditioning circuit, variable connector 5, A/D conversion
Device 6, single-chip microcontroller and display 7, constant voltage source 4 are that actuator potentiometer 2 and precision lead modeling potentiometer 1 and provide stabilized power source voltage
Vcc changes actuator potentiometer 2 and the accurate sliding end feedback voltage for leading modeling potentiometer 1 between 0-Vcc, the variation
Feedback voltage signal passes to variable connector 5 by signal conditioning circuit, and single-chip microcontroller controls A/D converter 6 and feeds back electricity to two-way
It presses signal to carry out real-time A/D conversion, and the tested air door executer linearity is calculated by formula to the voltage value measured and is missed
Then difference is shown by display 7.
In order to intuitively observe the testing result of air door executer, single-chip microcontroller is also connected with PC machine, and PC machine is built-in with air door
The actuator linearity tests and analyzes software, and PC machine tests and analyzes software by the linearity and handles the data information of importing,
And " feedback voltage-corner " curve and " linearity error-corner " curve of air door executer are drawn out, text can be used in data
Part form saves.
Single-chip microcontroller in the present embodiment is STC12C5A60S2 single-chip microcontroller, and device control is driven by motor in performer motor 3.
As shown in figure 3, the present embodiment also provides a kind of air door actuator of automobile air-conditioner linearity detection method, use is above-mentioned
Air door actuator of automobile air-conditioner linearity detector, wherein linearity error calculation method the following steps are included:
A. the accurate sliding end feedback voltage for leading modeling potentiometer 1 and the rotation angle of the shaft of performer motor 3 are linear
Relationship, as shown in straight line I in Fig. 3, linear equation are as follows:
Wherein, Vj is the dynamic feedback voltage that precision leads modeling potentiometer 1, and θ is the rotation angle of performer motor 3, and θ r is
Precision leads the modeling electrical corner of potentiometer 1；
B. it measures actuator potentiometer 2 and specifies feedback voltage ViHAnd ViLPrecision corresponding to two o'clock is led modeling potentiometer 1 and is fed back
Voltage VjHAnd VjL, obtain the ideal line of tested actuator, as shown in straight line II in Fig. 3, this linear equation are as follows:
The dynamic point voltage V of modeling potentiometer 1 is led according to the precision measuredjHAnd VjLAnd the accurate electrical rotational angle theta for leading modeling potentiometer 1r,
It is V that performer motor, which can be obtained, in feedback voltageiH~ViLBetween electrical corner:
In VjLAnd VjHBetween take N number of point, then step-lengthWith Δ VjFor stepping, precision is measured point by point and leads modeling
Potentiometer feedback voltage Vj1, Vj2, Vj3……VjNCorresponding actuator potentiometer each point feedback voltage level Vi1, Vi2, Vi3……
ViN；Wherein Vj1As VjL, VjNAs VjH；
C. byV is calculateds1, Vs2, Vs3……VsN, defined by linearity error
X (1~N of x value) puts linearity error are as follows:
N in the present embodiment is the natural number greater than 2.
Single-chip microcontroller in the present embodiment receives the feedback voltage signal that precision leads modeling potentiometer 1 and actuator potentiometer 2, and
The linearity error of air door executer is calculated by above-mentioned formula, which is shown by display 7, display
7 display air door executers are V in feedback voltageiH~ViLBetween electrical crank degree and maximum linearity error value, this reality
The display 7 applied in example is designed as digital display tube, and digital display tube scrolls V in real timeiH~ViLBetween each point linearity
Error amount, display 7 shows V when test is completediH~ViLBetween in each test point maximum absolute value linearity error value, such as
The linearity error value of fruit maximum absolute value is fallen in critical field, then being tested actuator is qualification, and certain display 7 can be with
It is shown using the display module of other forms, with no restriction to this.
PC machine in the present embodiment can receive the data information of single-chip microcontroller, and same PC machine can show each test point electricity
Pressure, linearity error value and maximum linear degree error amount, at the same PC machine can show air door executer specify two feedback voltages it
Between effective electrical corner and linearity detection maximum overgauge, maximum minus deviation and average deviation, referring to fig. 4 and Fig. 5,
PC machine can test and analyze software by the linearity and handle the data information of importing, and draw out the " anti-of air door executer
Feedthrough voltage-corner " curve and " linearity error-corner " curve, to more intuitively observe air door executer testing result.
Wherein, the abscissa in Fig. 4 represents the rotation angle of the corresponding performer motor 3 of each test point, and ordinate represents each test point
Corresponding air door executer feedback voltage level can draw out the " anti-of air door executer according to the detected value of above-mentioned each test point
Feedthrough voltage-corner " curve, the straight line in Fig. 4 represent the ideal line of air door executer, the air door executer being equivalent in Fig. 3
Ideal line II, the curve in Fig. 4 represent measurement voltage curve, and the air door executer actual measurement feedback voltage being equivalent in Fig. 3 is bent
Line III, such user's observation is more intuitive, and the abscissa in Fig. 5 represents the rotation angle of the corresponding performer motor 3 of each test point,
Ordinate represents the linearity error value of the corresponding air door executer of each test point, can be with according to the detected value of above-mentioned each test point
" linearity error-corner " curve of air door executer is drawn out, is convenient for the more intuitive acquisition testing result of user, and above-mentioned
Document form preservation can be used in test result, handles convenient for later data statistical analysis.
The linearity detector of this example leads modeling potentiometer as angular displacement sensor, to air door executer line using precision
Property degree error detected, detection accuracy is high, and detectable air door executer specifies having between two feedback voltages to detector simultaneously
Electrical corner is imitated, each air door executer detection data can be uploaded to PC machine, draw curve, and document form guarantor can be used in data
It deposits, facilitates inquiry and analysis.
It should be appreciated that described above, the specific embodiments are only for explaining the present invention, is not intended to limit the present invention.By
The obvious changes or variations that spirit of the invention is extended out are still in the protection scope of this invention.
Claims (7)
1. a kind of air door actuator of automobile air-conditioner linearity detector, it is characterised in that: at data acquisition unit and calculating
Unit is managed, the data acquisition unit includes that the precision being connected with air door executer leads modeling potentiometer (1), the air door executer
Including actuator potentiometer (2) and performer motor (3), the precision leads modeling potentiometer (1) and passes through shaft coupling and actuator electricity
The shaft of machine (3) is rigidly connected, and the precision leads modeling potentiometer (1) and drives lower and actuator potentiometer in performer motor (3)
(2) it rotates synchronously, the calculation processing unit includes constant voltage source (4), signal conditioning circuit, variable connector (5), A/D conversion
Device (6), single-chip microcontroller and display (7), the constant voltage source (4) are that the actuator potentiometer (2) and precision lead modeling potentiometer
(1) the stabilized power source voltage Vcc sliding end feedback electricity for making the actuator potentiometer (2) and precision lead modeling potentiometer (1) is provided
It being pressed between 0-Vcc and changes, the voltage signal of the variation passes to the variable connector (5) by the signal conditioning circuit,
Single-chip microcontroller control A/D converter (6) carries out real-time A/D conversion to two-way feedback voltage signal, and to the voltage value measured
Tested air door executer linearity error value is calculated by formula, is then shown by the display (7)；
Wherein, the linearity error value calculation method the following steps are included:
A. the precision leads the sliding end feedback voltage of modeling potentiometer (1) and the rotation angle of the shaft of performer motor (3) is in
Linear relationship, linear equation are as follows:
Wherein, Vj is the dynamic feedback voltage that precision leads modeling potentiometer (1), and θ is the rotation angle of performer motor (3), and θ r is
Precision leads modeling potentiometer (1) electrical corner；
B. it measures actuator potentiometer and specifies feedback voltage ViHAnd ViLPrecision corresponding to two o'clock leads modeling potentiometer feedback voltage VjH
And VjL, obtain the ideal line of tested actuator, this linear equation are as follows:
The dynamic point voltage V of modeling potentiometer is led according to the precision measuredjHAnd VjLAnd the accurate electrical rotational angle theta for leading modeling potentiometerr, can must hold
Row device motor is V in feedback voltageiH~ViLBetween electrical corner:
In VjLAnd VjHBetween take N number of point, then step-lengthWith Δ VjFor stepping, precision is measured point by point and leads modeling current potential
Device feedback voltage Vj1, Vj2, Vj3……VjNCorresponding actuator potentiometer each point feedback voltage level Vi1, Vi2, Vi3……ViN；
Wherein Vj1As VjL, VjNAs VjH；
C. byV is calculateds1, Vs2, Vs3……VsN, x (x is defined to obtain by linearity error
1~N of value) point linearity error are as follows:
2. air door actuator of automobile air-conditioner linearity detector according to claim 1, it is characterised in that: the single-chip microcontroller
It also ins succession PC machine, the PC machine receives and show the data information of the single-chip microcontroller, and the PC machine after processing data information to drawing
Produce " feedback voltage-corner " curve and " linearity error-corner " curve of the air door executer detection.
3. air door actuator of automobile air-conditioner linearity detector according to claim 1, it is characterised in that: the precision is led
Modeling potentiometer (1) is fixedly mounted on testing jig pedestal.
4. air door actuator of automobile air-conditioner linearity detector according to claim 1, it is characterised in that: the single-chip microcontroller
For STC12C5A60S2 single-chip microcontroller.
5. air door actuator of automobile air-conditioner linearity detector according to claim 1, it is characterised in that: the actuator
Device control is driven by motor in motor (3).
6. a kind of air door actuator of automobile air-conditioner linearity detection method uses the vapour as described in claim 1-5 any one
Vehicle air conditioner damper actuator linearity detector, it is characterised in that: linearity error calculation method the following steps are included:
A. the precision leads the sliding end feedback voltage of modeling potentiometer (1) and the rotation angle of the shaft of performer motor (3) is in
Linear relationship, linear equation are as follows:
Wherein, Vj is the dynamic feedback voltage that precision leads modeling potentiometer (1), and θ is the rotation angle of performer motor (3), and θ r is
Precision leads modeling potentiometer (1) electrical corner；
B. it measures actuator potentiometer and specifies feedback voltage ViHAnd ViLPrecision corresponding to two o'clock leads modeling potentiometer feedback voltage VjH
And VjL, obtain the ideal line of tested actuator, this linear equation are as follows:
The dynamic point voltage V of modeling potentiometer is led according to the precision measuredjHAnd VjLAnd the accurate electrical rotational angle theta for leading modeling potentiometerr, can must hold
Row device motor is V in feedback voltageiH~ViLBetween electrical corner:
In VjLAnd VjHBetween take N number of point, then step-lengthWith Δ VjFor stepping, precision is measured point by point and leads modeling current potential
Device feedback voltage Vj1, Vj2, Vj3……VjNCorresponding actuator potentiometer each point feedback voltage level Vi1, Vi2, Vi3……ViN；
Wherein Vj1As VjL, VjNAs VjH；
C. byV is calculateds1, Vs2, Vs3……VsN, x (x is defined to obtain by linearity error
1~N of value) point linearity error are as follows:
7. air door actuator of automobile air-conditioner linearity detection method according to claim 6, it is characterised in that: the display
Device (7) display air door executer is V in feedback voltageiH~ViLBetween electrical crank degree and maximum linear degree error amount, institute
It states single-chip microcontroller also in succession PC machine, the PC machine receives the data information of single-chip microcontroller, and the PC machine after processing data information to drawing
" feedback voltage-corner " curve and " linearity error-corner " curve of the air door executer detection out.
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| CN201610912251.6A CN106249091B (en) | 2016-10-19 | 2016-10-19 | A kind of air door actuator of automobile air-conditioner linearity detector and its detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610912251.6A CN106249091B (en) | 2016-10-19 | 2016-10-19 | A kind of air door actuator of automobile air-conditioner linearity detector and its detection method |
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| CN106249091B true CN106249091B (en) | 2019-03-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107063729B (en) * | 2017-04-18 | 2019-04-16 | 南方英特空调有限公司 | A kind of vehicle air conditioner temperature Linear testing method and system based on host computer |
| CN114543341B (en) * | 2022-01-24 | 2023-10-20 | 青岛海尔空调器有限总公司 | Method and device for controlling air deflector, air conditioner and storage medium |
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| US7347112B2 (en) * | 2004-05-03 | 2008-03-25 | Environemental Monitoring Systems, Inc. | Air sampler with integrated airflow sensing |
| CN201278006Y (en) * | 2008-09-04 | 2009-07-22 | 上海信耀电子有限公司 | Linearity measuring system for linear type potentiometer |
| CN202057476U (en) * | 2011-03-01 | 2011-11-30 | 上海奉天电子有限公司 | Linearity testing device |
| CN202141793U (en) * | 2011-07-18 | 2012-02-08 | 湖北开特汽车电子电器系统股份有限公司 | Automotive air conditioner servo motor measuring system based on labview |
| CN102538875A (en) * | 2012-01-05 | 2012-07-04 | 孝感华工高理电子有限公司 | All-purpose tester of actuator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347112B2 (en) * | 2004-05-03 | 2008-03-25 | Environemental Monitoring Systems, Inc. | Air sampler with integrated airflow sensing |
| CN201278006Y (en) * | 2008-09-04 | 2009-07-22 | 上海信耀电子有限公司 | Linearity measuring system for linear type potentiometer |
| CN202057476U (en) * | 2011-03-01 | 2011-11-30 | 上海奉天电子有限公司 | Linearity testing device |
| CN202141793U (en) * | 2011-07-18 | 2012-02-08 | 湖北开特汽车电子电器系统股份有限公司 | Automotive air conditioner servo motor measuring system based on labview |
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