CN103335587B - A kind of position sensor on-line testing method and apparatus - Google Patents
A kind of position sensor on-line testing method and apparatus Download PDFInfo
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- CN103335587B CN103335587B CN201310275807.1A CN201310275807A CN103335587B CN 103335587 B CN103335587 B CN 103335587B CN 201310275807 A CN201310275807 A CN 201310275807A CN 103335587 B CN103335587 B CN 103335587B
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Abstract
The invention discloses a kind of position sensor on-line testing method, the method includes: initialize primary importance side-play amount and second position side-play amount each self-corresponding voltage on characteristic curve, the real-time voltage of position sensor output is sampled, judge within the scope of certain time, whether real-time sampling voltage is maintained within the scope of first threshold, if, then judge in this time range, whether voltage pulsation amplitude is maintained within the scope of Second Threshold, if, then voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, with primary importance side-play amount with update after voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, to realize verification. the method overcome the shortcoming that prior art can not verify when machine runs. the embodiment of the present application also discloses a kind of position sensor on-line testing device, improves the precision of position sensor.
Description
Technical field
The present invention relates to automatic field, particularly relates to a kind of position sensor on-line testing method and device.
Background technology
Along with progress and the development of science and technology, position sensor is more and more universal in modern industry automated production. Position sensor, refer to experience testee position and the side-play amount of this object space is converted to the measurement to resistance, electric capacity or induction electromotive force etc., thus the sensor of the signals such as output voltage, such as TPS etc., it is characterized in that position offset that position sensor measures and the relation of output voltage are certain characteristic curve, wherein can as the case may be based on angle or displacement etc. to the measurement of position degrees of offset.
But in actual applications; some position sensors often make the real offset that institute's location is put inconsistent with the theoretical position side-play amount that the magnitude of voltage of output is calculated by theoretical characteristic curve due to the reason such as rigging error or problem of aging; namely characteristic curve produces deviation; if continuing to calculate position offset according to former characteristic curve; may result in sensor accuracy to reduce, affect properties of product.
In order to improve sensor accuracy, prior art pressure institute location after whole machine is energized, before operation start is put and is reached minimum offset or maximum offset, position sensor obtains the minimum or maximum offset that institute's location is put, and this side-play amount is separately converted to corresponding magnitude of voltage to the magnitude of voltage corresponding to the two side-play amount on renewing speciality curve respectively, thus reaching the purpose that position sensor is verified.Such as, EGR valve position sensor on automobile, i.e. EGR (Exhaust Gas Recirculation) valve position sensor, by detecting the folding degree of EGR valve, actual amount of exhaust gas recirculation is carried out Closed-cycle correction feedback control, so that engine performance is not produced excessive influence by amount of exhaust gas recirculation. When automobile is in starting state but does not travel, the control system of automobile sends signal to executor, executor is made to force EGR valve standard-sized sheet or entirely close, EGR position sensor is converted to the voltage signal of correspondence after EGR valve standard-sized sheet or full pass being detected, the control system that then voltage signal is sent to automobile comes EGR valve standard-sized sheet or the full magnitude of voltage closing correspondence on renewing speciality curve, thus characteristic curve is calibrated. But working as automobile in the process of moving, control system can not allow executor force valve wide open or entirely close again, otherwise can affect vehicle properly functioning, now may there is sideslip because of problem of aging etc. in EGR position sensor characteristic curve, produce bigger error. In addition, prior art depends on the pressure equipment of similar executor, but not all position sensor all has pressure equipment, without the equipment of pressure, then cannot position sensor be calibrated.
Summary of the invention
In order to make machine operationally checksum location sensor, and do not rely on pressure equipment, the invention provides a kind of position sensor on-line testing method and apparatus, improve the precision of position sensor.
Embodiments providing a kind of position sensor on-line testing method, first, initialize primary importance side-play amount and second position side-play amount each self-corresponding voltage on characteristic curve, described method of calibration includes:
The real-time voltage of position sensor output is sampled, judge within the scope of certain time, whether real-time sampling voltage is maintained within the scope of first threshold, if, then judge in this time range, whether voltage pulsation amplitude is maintained within the scope of Second Threshold, if, then voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, with primary importance side-play amount with update after voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, to realize verification.
Preferably, described method also includes:
Judge within the scope of certain time, whether real-time sampling voltage is maintained in the 3rd threshold range, if, then judge in this period, whether voltage pulsation amplitude is maintained in the 4th threshold range, if, then voltage corresponding for second position side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, with primary importance side-play amount with update after voltage corresponding to the primary importance side-play amount voltage corresponding with second position side-play amount after second position side-play amount and renewal regenerate the characteristic curve of position sensor.
Preferably, described primary importance side-play amount is minimum position side-play amount, and described second position side-play amount is maximum position offset amount.
Preferably, primary importance side-play amount voltage corresponding on characteristic curve is set as u1, second position side-play amount voltage of correspondence on characteristic curve is u2, described first threshold ranges for [u1-x%|u2-u1|, u1+x%|u2-u1|], described Second Threshold range for [0, y% | u2-u1|], wherein x > y, and x, y �� (0,100).
Preferably, primary importance side-play amount voltage corresponding on characteristic curve is set as u1, second position side-play amount voltage of correspondence on characteristic curve is u2, described 3rd threshold range is [u2-x%|u2-u1|, u2+x%|u2-u1|], described 4th threshold range be [0, y% | u2-u1|], wherein x > y, and x, y �� (0,100).
Preferably, described x �� (0,10], described y �� (0,5].
Preferably, described method of calibration also includes:
While the real-time voltage that position sensor is exported is sampled, voltage is filtered; Or,
After the described characteristic curve step regenerating position sensor, return the real-time voltage to position sensor output carry out sampling step and be circulated.
The present invention also provides for a kind of position sensor on-line testing device, and described device includes: initialization voltage unit, real-time voltage sampling unit, the first judging unit, the second judging unit, the first updating block and characteristic curve generate unit, wherein,
Described initialization voltage unit, for initializing primary importance side-play amount and second position side-play amount each self-corresponding voltage on characteristic curve;
Described real-time voltage sampling unit, for sampling to the real-time voltage of position sensor output;
Described first judging unit, is used for judging within the scope of certain time, whether this real-time sampling voltage is maintained within the scope of first threshold, if it is, activate the second judging unit;
Described second judging unit, for judging in this time range, whether the fluctuating margin of this real-time sampling voltage is maintained within the scope of Second Threshold, if it is, activate the first updating block;
Described first updating block, for being updated to the real-time sampling average voltage in this time range by voltage corresponding for primary importance side-play amount in characteristic curve;
Described characteristic curve generates unit, for primary importance side-play amount and after updating voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, to realize verifying.
Preferably, described characteristic curve generates unit, is additionally operable to regenerate the characteristic curve of position sensor with primary importance side-play amount and voltage corresponding to primary importance side-play amount is corresponding with second position side-play amount after second position side-play amount and renewal after updating voltage;
Described device also includes: the 3rd judging unit, the 4th judging unit and the second updating block, wherein,
Described 3rd judging unit, for judging within the scope of certain time, whether the real-time sampling voltage of position sensor output is maintained in the 3rd threshold range, if it is, activate the 4th judging unit;
Described 4th judging unit, for judging in this time range, whether the fluctuating margin of this real-time sampling voltage is maintained in the 4th threshold range, if it is, activate the second updating block;
Described second updating block, for being updated to the real-time sampling average voltage in this time range by voltage corresponding for second position side-play amount in characteristic curve.
Preferably, described device also includes filter unit, for the real-time sampling voltage of position sensor output is filtered; Or,
Described characteristic curve generates unit, is additionally operable to activation real-time voltage sampling unit after regenerating the characteristic curve of position sensor.
Due to rigging error or problem of aging etc., the characteristic curve of some position sensors produces deviation in machine running process, and even going back off-duty characteristic curve has just had deviation so that the precision of sensor reduces. prior art forces institute location to be put to reach minimum offset or maximum offset, position sensor obtains the minimum or maximum offset that institute's location is put, and this side-play amount is converted respectively magnitude of voltage corresponding to output to the magnitude of voltage corresponding to the two side-play amount on renewing speciality curve respectively, thus reaching the purpose that position sensor is verified, but once machine behaves, pressure equipment cannot work, it is possible to there is sideslip and cannot be verified in characteristic curve, and prior art depends on pressure equipment, the position sensor not forcing equipment just cannot be calibrated. in the present invention when machine runs, judge whether the fluctuating margin of voltage corresponding to the real time position side-play amount of the output of position sensor within the scope of certain time and voltage keeps in corresponding threshold range, if, then by voltage corresponding for surveyed position offset on the average voltage renewing speciality curve in this period, the characteristic curve making position sensor can be verified online, and overcomes the shortcoming that prior art relies on pressure equipment.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the embodiment of the present invention one position sensor on-line testing method;
Fig. 2 is the flow chart of the embodiment of the present invention two position sensor on-line testing method;
Fig. 3 is the flow chart of the embodiment of the present invention three position sensor on-line testing method;
Fig. 4 is the structured flowchart of the embodiment of the present invention four position sensor on-line testing device;
Fig. 5 is the structured flowchart of the embodiment of the present invention five position sensor on-line testing device.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, 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 embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
Due to rigging error or problem of aging etc., the characteristic curve of some position sensors produces deviation in machine running process, and even going back off-duty characteristic curve has just had deviation so that the precision of sensor reduces. The invention provides a kind of position sensor on-line testing method, verify characteristic curve when machine runs, referring to Fig. 1, the method comprises the following steps:
Step S101: initialize primary importance side-play amount and second position side-play amount each self-corresponding voltage on characteristic curve;
Step S102: the real-time voltage of position sensor output is sampled, and is filtered;
Step S103: judge within the scope of certain time, whether real-time sampling voltage is maintained within the scope of first threshold, if it is, carry out step S104, otherwise returns step S102;
Step S104: whether the real-time sampling voltage pulsation amplitude judged in this section of time range is maintained within the scope of Second Threshold, if it is, carry out step S105, otherwise returns step S102;
Step S105: voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range;
Step S106: with primary importance side-play amount with update after voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, to realize verifying.
In the present embodiment, in order to avoid the interference of other signals, it is preferable that in step s 102 real-time sampling voltage is filtered. In addition, this example Position Sensor carries out verifying the voltage being required for initializing primary importance side-play amount correspondence on characteristic curve and the second position side-play amount voltage of correspondence on characteristic curve every time, but in actual applications, one position sensor often has only to once initialize, and second time and later verification have only to start from step S102. And in actual applications, in order to make the position sensor characteristic curve of online generation remain accurate, return step S102 after completion of step s 106, in order to continual characteristic curve is adjusted.
This present embodiment provide position sensor on-line testing method so that the characteristic curve of position sensor remains accurate in machine running process, and do not assembled or problem of aging affect generation deviation, improve the precision of position sensor. And prior art is after machine is energized, reach minimum or maximum by pressure equipment forced location side-play amount before operating, the voltage exported accordingly is updated on former characteristic curve the voltage of correspondence by position sensor respectively, thus reaching the purpose verified.Owing to after machine run, pressure equipment can not perform pressure action, so cannot verify online. The method that the present embodiment provides overcomes the shortcoming of prior art, and equipment need not be forced just can to complete.
Embodiment two
The voltage that primary importance side-play amount is corresponding is only updated by embodiment one, in actual applications, the linearity curve updating two voltages generations corresponding to position offset is more accurate, so second position side-play amount is also carried out updating by the present embodiment, referring to Fig. 2, specifically comprise the following steps that
Step S201: initialize primary importance side-play amount voltage corresponding on characteristic curve and the second position side-play amount voltage of correspondence on characteristic curve;
Step S202: the real-time voltage of position sensor output is sampled, and is filtered;
Step S203: judge within the scope of certain time, whether real-time sampling voltage is maintained within the scope of first threshold, if it is, carry out step S204, otherwise returns step S202;
Simultaneously, it is judged that in this time range, whether real-time sampling voltage is maintained in the 3rd threshold range, if it is, carry out step S206, otherwise return step S202;
Step S204: judge in this time range, whether real-time sampling voltage pulsation amplitude is maintained within the scope of Second Threshold, if it is, carry out step S205, otherwise returns step S202;
Step S205: voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, then carries out step S208;
Step S206: judge in this time range, whether real-time sampling voltage pulsation amplitude is maintained in the 4th threshold range, if it is, carry out step S207, otherwise returns step S202;
Step S207: voltage corresponding for second position side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, then carries out step S208;
Step S208: with primary importance side-play amount with update after voltage corresponding to the primary importance side-play amount voltage corresponding with second position side-play amount after second position side-play amount and renewal regenerate the characteristic curve of position sensor, and return step S202.
Through each self-corresponding voltage of primary importance side-play amount and second position side-play amount is updated, obtain accurate characteristic curve, by the circulation updating step, making characteristic curve remain accurate, improve the precision of position sensor.
Embodiment three
In order to be further appreciated by the present invention, the position sensor on-line testing method described in embodiment two is carried out citing and describes by the present embodiment. Owing to the present invention is to how many primary importance side-play amount and second position side-play amounts of position sensor are specifically not especially limited, but preferably primary importance side-play amount is minimum position side-play amount, namely offset by 0% relative to initial position, the voltage on corresponding former characteristic curve is u'1, second position side-play amount is maximum position offset amount, namely offset by 100% relative to initial position, and the voltage on corresponding former characteristic curve is u'2. First threshold scope, Second Threshold scope, the 3rd threshold range and the 4th threshold range are specially and how much are not especially limited by the present invention, and the preferred first threshold of the present embodiment ranges for [u'1-x%|u'2-u'1|, u'1+x%|u'2-u'1|], Second Threshold range for [0, y% | u'2-u'1|], and x, y �� (0,100). , the 3rd threshold range is [u'2-x%|u'2-u'1|, u'2+x%|u'2-u'1|], the 4th threshold range be [0, y% | u'2-u'1|], wherein x > y, the scope of x and y is all (0,100) in theory, but in actual applications, the concrete numerical value of x, y can obtain according to position sensor many experiments, generally, x (0,10] in scope, y (0,5] in scope.In the present embodiment, it is preferable that x is 5, y is 2. As described above, referring to Fig. 3, the position sensor on-line testing method step of the present embodiment is:
Step S301: the voltage u' that initialized location side-play amount 0% is corresponding on characteristic curve1The voltage u' corresponding on characteristic curve with position offset 100%2;
Step S302: the real-time voltage of position sensor output is sampled, and is filtered;
Step S303: judge within the scope of certain time, whether real-time sampling voltage is maintained at [u'1-5%|u'2-u'1|, u'1+5%|u'2-u'1|] in, if it is, carry out step S304, otherwise return step S302;
Judge in this time range, whether real-time sampling voltage is maintained at [u' simultaneously2-5%|u'2-u'1|, u'2+5%|u'2-u'1|] in, if it is, carry out step S306, otherwise return step S302;
Step S304: judge that in this time range, whether real-time sampling voltage pulsation amplitude is maintained at [0,2% | u'2-u'1|] in, if it is, carry out step S305, otherwise return step S302;
Step S305: by the voltage u' of position offset in characteristic curve 0% correspondence1It is updated to the real-time sampling average voltage in this time range, then carries out step S308;
Step S306: judge that in this time range, whether real-time sampling voltage pulsation amplitude is maintained at [0,2% | u'2-u'1|] in, if it is, carry out step S307, otherwise return step S302;
Step S307: by the voltage u' of position offset in characteristic curve 100% correspondence2It is updated to the real-time sampling average voltage in this time range, then carries out step S308;
Step S308: regenerate the characteristic curve of position sensor with the voltage that voltage corresponding after position offset 0% and renewal is corresponding with after position offset 100% and renewal, be then back to step S302.
Embodiment four
Above-described embodiment is embodiment of the method, with embodiment of the method accordingly, present invention also provides a kind of position sensor on-line testing device embodiment. referring to Fig. 4, this device includes initialization voltage unit 401, real-time voltage sampling unit the 402, first judging unit the 4031, second judging unit the 4032, first updating block 4041 and characteristic curve and generates unit 405, so that real-time sampling voltage is not by other signal disturbing, the present embodiment Position Sensor on-line testing device also includes filter unit 406. wherein, initialization voltage unit 401 is connected with real-time voltage sampling unit 402, real-time voltage sampling unit 402 is connected with the first judging unit 4031, first judging unit 4031 is connected with the second judging unit 4032, second judging unit 4032 is connected with the first updating block 4041, first updating block 4041 generates unit 405 with characteristic curve and is connected, characteristic curve generates unit 405 and is connected with real-time voltage sampling unit 402, additionally, filter unit 406 is individually connected with real-time voltage sampling unit 402, in practical operation, filter unit 406 can also embed real-time voltage sampling unit and make as a whole.
The operation principle of the present embodiment position sensor on-line testing device is: initialization voltage unit 401 initializes primary importance side-play amount voltage corresponding on characteristic curve and the second position side-play amount voltage of correspondence on characteristic curve; Real-time voltage is sampled by real-time voltage sampling unit 402, and while sampling, voltage is filtered by filter unit 406; First judging unit 4031 judges within the scope of certain time, whether this real-time sampling voltage is maintained within the scope of first threshold, if it is, activate the second judging unit;Second judging unit 4032 judges in this section of time range, whether the fluctuating margin of real-time sampling voltage is maintained within the scope of Second Threshold, if it is, activate the first updating block 4041; Voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range by the first updating block 4041; Characteristic curve generate unit 405 with primary importance side-play amount and after updating voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, then real-time voltage sampling unit is activated, the formation characteristic curve to move in circles, makes characteristic curve remain accurate in machine running process.
The position sensor on-line testing device that the present embodiment provides, by whether voltage corresponding to real time position side-play amount and fluctuating margin thereof judging the position sensor output within certain time is maintained in respective threshold range, if, then by voltage corresponding for surveyed position offset on the average voltage renewing speciality curve in this period, the characteristic curve making position sensor can be verified online, overcome prior art and can not verify and rely on the shortcoming of pressure equipment when machine runs, improve the precision of position sensor.
Embodiment five
The position sensor on-line testing device of embodiment four is voltage corresponding to a position offset on renewing speciality curve only, but in actual applications, so that characteristic curve is more accurate, generally require and update the voltage that two position offsets are corresponding, so on the basis of embodiment four, the position sensor on-line testing device of the present embodiment also includes: the 3rd judging unit 4033, 4th judging unit 4034 and the second updating block 4042, referring to Fig. 5, wherein, initialization voltage unit 401 is connected with real-time voltage sampling unit 402, real-time voltage sampling unit 402 is connected with the first judging unit 4031 and the 3rd judging unit 4033, first judging unit 4031 is connected with the second judging unit 4032, second judging unit 4032 is connected with the first updating block 4041, 3rd judging unit 4033 is connected with the 4th judging unit 4034, and the 4th judging unit 4034 is connected with the second updating block 4042, first updating block 4041 generates unit 405 with the second updating block 4042 with characteristic curve and is connected, and characteristic curve generates unit 405 and is connected with real-time voltage sampling unit 402, it addition, filter unit 406 is individually connected with real-time voltage sampling unit 402.
The operation principle of the present embodiment position sensor calibration equipment is: initialization voltage unit 401 initializes primary importance side-play amount voltage corresponding on characteristic curve and the second position side-play amount voltage of correspondence on characteristic curve; Real-time voltage is sampled by real-time voltage sampling unit 402, and while sampling, voltage is filtered by filter unit 406; First judging unit 4031 judges within the scope of certain time, whether this real-time sampling voltage is maintained within the scope of first threshold, if, then activate the second judging unit 4032, second judging unit 4032 judges in this period, whether voltage pulsation amplitude is maintained within the scope of Second Threshold, if, then activating the first updating block 4041, voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range by the first updating block 4041; Simultaneously, 3rd judging unit 4033 judges in this time range, whether real-time sampling voltage is maintained in the 3rd threshold range, if, then activate the 4th judging unit 4034,4th judging unit 4034 judges in this section of time range, whether real-time voltage fluctuating margin is maintained in the 4th threshold range, if it is, activate the second updating block 4042, voltage corresponding for second position side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range by the second updating block 4042;Characteristic curve generate unit 405 with primary importance side-play amount and after updating voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, then real-time voltage sampling unit is activated, the formation characteristic curve to move in circles, makes characteristic curve remain accurate in machine running process.
Although aforesaid position sensor calibration equipment embodiment can realize present invention purpose, but, in this embodiment, often carry out once verification and be required for the magnitude of voltage corresponding according to the characteristic curve initiation verification position aperture preset, but, in actual applications, it is possible to have only to initialize primary voltage value, in machine operation process, verify according to filtered real-time sampling voltage and corresponding position aperture at any time. It is not especially limited further, since several positions aperture is carried out verification by the present invention, also the concrete numerical value of position aperture is not construed as limiting. So that the characteristic of verification is more accurate, it is preferable that the minimum and/or maximum of position aperture verifies, due to its basic simlarity and embodiment of the method, so seldom repeat herein.
The above is only the specific embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a position sensor on-line testing method, it is characterised in that initializing primary importance side-play amount and second position side-play amount each self-corresponding voltage on characteristic curve, described method of calibration includes:
The real-time voltage of position sensor output is sampled, judge within the scope of certain time, whether real-time sampling voltage is maintained within the scope of first threshold, if, then judge in this time range, whether voltage pulsation amplitude is maintained within the scope of Second Threshold, if, then voltage corresponding for primary importance side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, with primary importance side-play amount with update after voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, to realize verification.
2. position sensor on-line testing method according to claim 1, it is characterised in that described method also includes:
Judge within the scope of certain time, whether real-time sampling voltage is maintained in the 3rd threshold range, if, then judge in this time range, whether voltage pulsation amplitude is maintained in the 4th threshold range, if, then voltage corresponding for second position side-play amount in characteristic curve is updated to the real-time sampling average voltage in this time range, with primary importance side-play amount with update after voltage corresponding to the primary importance side-play amount voltage corresponding with second position side-play amount after second position side-play amount and renewal regenerate the characteristic curve of position sensor.
3. position sensor on-line testing method according to claim 2, it is characterised in that described primary importance side-play amount is minimum position side-play amount, and described second position side-play amount is maximum position offset amount.
4. position sensor on-line testing method according to claim 1, it is characterised in that set primary importance side-play amount voltage corresponding on characteristic curve as u1, second position side-play amount voltage of correspondence on characteristic curve is u2, described first threshold ranges for [u1-x% | u2-u1|, u1+ x% | u2-u1|], described Second Threshold range for [0, y% | u2-u1|], wherein x > y, and x, y �� (0,100).
5. position sensor on-line testing method according to claim 2, it is characterised in that set primary importance side-play amount voltage corresponding on characteristic curve as u1, second position side-play amount voltage of correspondence on characteristic curve is u2, described 3rd threshold range is [u2-x% | u2-u1|, u2+ x% | u2-u1|], described 4th threshold range be [0, y% | u2-u1|], wherein x > y, and x, y �� (0,100).
6. the position sensor on-line testing method according to claim 4 or 5, it is characterised in that described x �� (0,10], described y �� (0,5].
7. position sensor on-line testing method according to claim 1 and 2, it is characterised in that described method of calibration also includes:
While the real-time voltage that position sensor is exported is sampled, voltage is filtered; Or,
Circulation carries out returning the real-time voltage to position sensor output after the described characteristic curve step regenerating position sensor and carries out sampling step.
8. a position sensor on-line testing device, it is characterised in that described device includes: initialization voltage unit, real-time voltage sampling unit, the first judging unit, the second judging unit, the first updating block and characteristic curve generate unit, wherein,
Described initialization voltage unit, for initializing primary importance side-play amount and second position side-play amount each self-corresponding voltage on characteristic curve;
Described real-time voltage sampling unit, for sampling to the real-time voltage of position sensor output;
Described first judging unit, is used for judging within the scope of certain time, whether this real-time sampling voltage is maintained within the scope of first threshold, if it is, activate the second judging unit;
Described second judging unit, for judging in this time range, whether the fluctuating margin of this real-time sampling voltage is maintained within the scope of Second Threshold, if it is, activate the first updating block;
Described first updating block, for being updated to the real-time sampling average voltage in this time range by voltage corresponding for primary importance side-play amount in characteristic curve;
Described characteristic curve generates unit, for primary importance side-play amount and after updating voltage corresponding to primary importance side-play amount and second position side-play amount and corresponding voltage regenerate the characteristic curve of position sensor, to realize verifying.
9. position sensor on-line testing device according to claim 8, it is characterized in that, described characteristic curve generates unit, is additionally operable to regenerate the characteristic curve of position sensor with primary importance side-play amount and voltage corresponding to primary importance side-play amount is corresponding with second position side-play amount after second position side-play amount and renewal after updating voltage;
Described device also includes: the 3rd judging unit, the 4th judging unit and the second updating block, wherein,
Described 3rd judging unit, for judging within the scope of certain time, whether the real-time sampling voltage of position sensor output is maintained in the 3rd threshold range, if it is, activate the 4th judging unit;
Described 4th judging unit, for judging in this time range, whether the fluctuating margin of this real-time sampling voltage is maintained in the 4th threshold range, if it is, activate the second updating block;
Described second updating block, for being updated to the real-time sampling average voltage in this time range by voltage corresponding for second position side-play amount in characteristic curve.
10. position sensor on-line testing device according to claim 8 or claim 9, it is characterised in that described device also includes filter unit, for being filtered the real-time sampling voltage of position sensor output;Or,
Described characteristic curve generates unit, is additionally operable to activation real-time voltage sampling unit after regenerating the characteristic curve of position sensor.
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| CN106218553B (en) * | 2016-08-03 | 2018-09-11 | 北京新能源汽车股份有限公司 | Method and device for learning minimum voltage of accelerator pedal sensor and vehicle control unit |
| CN111722546B (en) * | 2020-06-30 | 2022-12-06 | 广东美的厨房电器制造有限公司 | Control method and control device of sensor and cooking equipment |
| CN111829488A (en) * | 2020-08-03 | 2020-10-27 | 成都华睿晶元电子科技有限公司 | Power transmission line iron tower inclination monitoring system based on spatial attitude sensor and control method |
| CN114046319B (en) * | 2021-11-11 | 2023-12-15 | 潍柴动力股份有限公司 | AMT clutch position correction method and system |
| CN114858110B (en) * | 2022-05-09 | 2023-12-15 | 潍柴动力股份有限公司 | Detection method and device of clutch position sensor and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3571041B1 (en) * | 2004-01-15 | 2004-09-29 | 株式会社帝国電機製作所 | Detector and motor bearing wear detector |
| CN101398316A (en) * | 2007-09-25 | 2009-04-01 | 奇瑞汽车股份有限公司 | Method for demarcating motor rotor position sensor |
| CN201858990U (en) * | 2010-11-23 | 2011-06-08 | 广州数控设备有限公司 | Device for subdividing sine-cosine signals and encoding data of position sensor |
| CN103017811A (en) * | 2012-11-22 | 2013-04-03 | 长沙中联消防机械有限公司 | Device, method and system for controlling automatic calibration of sensor and engineering mechanical equipment |
| CN103063878A (en) * | 2011-10-18 | 2013-04-24 | 中联重科股份有限公司 | Device, system and method for verifying dynamic characteristics of speed or acceleration sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5013187B2 (en) * | 2007-07-31 | 2012-08-29 | アイシン精機株式会社 | Shift lever position sensor |
-
2013
- 2013-07-02 CN CN201310275807.1A patent/CN103335587B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3571041B1 (en) * | 2004-01-15 | 2004-09-29 | 株式会社帝国電機製作所 | Detector and motor bearing wear detector |
| CN101398316A (en) * | 2007-09-25 | 2009-04-01 | 奇瑞汽车股份有限公司 | Method for demarcating motor rotor position sensor |
| CN201858990U (en) * | 2010-11-23 | 2011-06-08 | 广州数控设备有限公司 | Device for subdividing sine-cosine signals and encoding data of position sensor |
| CN103063878A (en) * | 2011-10-18 | 2013-04-24 | 中联重科股份有限公司 | Device, system and method for verifying dynamic characteristics of speed or acceleration sensor |
| CN103017811A (en) * | 2012-11-22 | 2013-04-03 | 长沙中联消防机械有限公司 | Device, method and system for controlling automatic calibration of sensor and engineering mechanical equipment |
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