WO2000019216A1 - Procede de deplacement de l'aiguille d'un compteur - Google Patents
Procede de deplacement de l'aiguille d'un compteur Download PDFInfo
- Publication number
- WO2000019216A1 WO2000019216A1 PCT/JP1999/005154 JP9905154W WO0019216A1 WO 2000019216 A1 WO2000019216 A1 WO 2000019216A1 JP 9905154 W JP9905154 W JP 9905154W WO 0019216 A1 WO0019216 A1 WO 0019216A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- value
- pointer
- target value
- instruction
- unit
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 17
- 230000003247 decreasing effect Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims description 42
- 238000005259 measurement Methods 0.000 claims description 12
- 238000003672 processing method Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 6
- 238000012887 quadratic function Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 244000126211 Hericium coralloides Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012888 cubic function Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R7/00—Instruments capable of converting two or more currents or voltages into a single mechanical displacement
- G01R7/04—Instruments capable of converting two or more currents or voltages into a single mechanical displacement for forming a quotient
- G01R7/06—Instruments capable of converting two or more currents or voltages into a single mechanical displacement for forming a quotient moving-iron type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D7/00—Indicating measured values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D2213/00—Indexing scheme relating to constructional details of indicators
- G01D2213/10—Drivers for gauges
Definitions
- the present invention relates to a method of driving an instrument, in particular, by attaching a pointer to a driving unit including a stepping motor, a cross-coil type rotating magnet type ammeter, and the like, inputting a measurement from an object to be measured at a predetermined cycle, and
- the present invention relates to a method of driving a meter that operates the hands attached to the drive unit by outputting the amount of change to the drive unit as an instruction value in a predetermined output update cycle unit.
- a driving device for an instrument having a driving unit including a stepping motor includes a driving circuit that drives the stepping motor based on a digital signal corresponding to a measured amount, and a driving shaft end of the stepping motor.
- a scale attached to a dial corresponding to the measured amount is indicated by a pointer attached to the device, and the measured amount is displayed.
- Such an instrument driving device can be used, for example, in a car speedometer, an engine tachometer, and even a fuel gauge or a thermometer by AZD processing of a detection signal.
- serial communication in vehicle instruments has been progressing, and a digital signal corresponding to the running state of the vehicle has been instructed from an ECU (engine control unit) mounted on the vehicle via a serial transmission cable.
- ECU engine control unit
- each indicator is driven by this serial communication control, for example, in a speedometer or a tachometer that indicates a vehicle speed or an engine speed at which a measured amount changes drastically, a drive unit such as a stepping motor is driven. Processing for operating the indicating instrument even if the output cycle of the processing circuit itself has a capability of 5 msec. If the cycle (input cycle) of the measurement quantity input to the unit (processing circuit) is 50 msec, the output update cycle is in 50 msec units, so the change in the measurement quantity changes slowly. Even in this case, there is a problem that the indicating instrument side undergoes a drastic change, and a smooth indicating operation cannot be obtained as the indicating instrument.
- the stepping motor is designed to obtain smoothness by correcting the driving signal waveform based on the step operation corresponding to the tooth pitch of the comb tooth yoke. Is large, the change in the drive signal to the stepping mode itself is also large, and conversely, if the data change during the output update period is large, the response is large, and the large change is large. However, there is a problem that the intermittent operation of the pointer is immediately confirmed and the smooth operation of the indicating instrument cannot be obtained.
- the present invention provides a method of driving an instrument that prevents intermittent movements of a pointer and that can provide a smooth indicating operation as an indicating instrument. Disclosure of the invention
- a measured value from an object to be measured is input to a processing unit at a predetermined cycle, and a change amount of the measured amount is output to a driving unit as an instruction value of a predetermined output update cycle unit included in the processing unit.
- the present invention relates to a method of driving a meter that operates a pointer attached to the driving unit.
- the present invention is based on a past indicated value of the pointer, an indicated value determined at the present time of the pointer, and a target value for operating the pointer according to the measured amount.
- This is a method for driving an instrument, wherein an indicator characteristic for determining behavior is obtained by a predetermined function, and the pointer is operated by an indicator value in the unit of the output update period along the indicator characteristic.
- a first target value and a second target value for operating the pointer in accordance with the measured amount are sequentially input, and are determined at the present time of the pointer.
- the first target value is compared with the second target value, and the second target value is set to the first target value.
- An instruction characteristic that indicates a value equal to or less than the first target value from the indicated instruction value is obtained by a predetermined function, and the instruction characteristic in the output update cycle unit along the instruction characteristic is obtained.
- a target value is input for operating the pointer according to the measured amount, and a target value is determined from a first instruction value determined at the present time of the pointer to the target value.
- the first instruction value is indicated, and an instruction characteristic similar to the target value and a second instruction value that is a past instruction value of the pointer is obtained by a predetermined function.
- the indicator is operated by the indicated value in the unit of the output update cycle so as to conform to the indicated characteristic, and the indicated value obtained in a predetermined input cycle is simply linearly connected to the indicated characteristic. Accordingly, the hands can be operated more smoothly than when the hands are operated with the indicated value in the output update cycle unit.
- FIG. 1 is a block diagram showing an instrument driving device of the present invention
- FIG. 2 is a diagram showing a first processing method in a processing unit of the present invention
- FIG. 3 is a second processing method in a processing unit of the present invention.
- the drive device 1 controls the drive unit based on data (measured values) transferred by serial communication.
- 2 counts pulse signals, such as vehicle speed and engine speed, at each time determined by the reference clock, and converts the measured values into parallel Z-serial data at a multiplex communication interface (not shown) to generate data signals.
- the data signal is transmitted to a receiving unit described later at a predetermined cycle. It is a transmitting unit for transmitting.
- Reference numeral 3 denotes a receiving unit that converts a data signal corresponding to the measured amount transferred from the transmitting unit 2 into a parallel signal by a multiplex communication interface unit (not shown).
- Reference numeral 4 denotes a main unit of the present invention, which is a processing unit that converts the data signal obtained by the receiving unit 3 into an instruction value corresponding to the measurement amount, and includes a microcomputer.
- Reference numeral 5 denotes a drive output unit that drives a stepping motor, which is a drive unit, which will be described later, by driving the indicated value obtained by the processing unit 4 by voltage conversion or the like.
- Reference numeral 6 denotes a stepping motor type driving unit which displays a measurement amount of a measurement object by indicating a scale on a dial 6b with a pointer 6a attached to a driving shaft end of the stepping motor.
- the driving unit 1 is configured by the receiving unit 3, the processing unit 4, the driving processing unit 5, and the driving unit 6. Further, the driving device 1 and the transmission unit 2 are connected by a transmission line 7 which is a serial transfer cable.
- the processing unit 4 includes a first target value B corresponding to the measurement amount to be indicated next by the pointer 6a, and a second target value C according to the measurement amount to be further indicated by the pointer 6b.
- the first target value B is compared with the second target value C, and the indicated value A 1 determined at the present time of the pointer 6a (to be instructed) Then, it is determined whether the second target value C input at a predetermined period T from the first target value B is increasing or decreasing with respect to the first target value B.
- the processing unit 4 determines that the pointer 6a is increasing, the behavior of the pointer 6a that moves the pointer 6a from the indicated value A1 to the second target value C through the first target value B is determined.
- the indicator characteristic X1 between the indicated value A1 and the second target value C (between time T1 and time T3) is determined by a function formula described later.
- the processing unit 4 determines that the instruction value A2 to be instructed at the time T2 when the first target value B is input is equal to or greater than the first target value B (the first target value B in FIG. 2). Set the indicator characteristic X1 so that the indicator value exceeds the value B).
- the processing unit 4 sets the output updating period t in units so as to follow the indicated characteristic X1. Outputs the indicated value p and operates the pointer 6a of the drive unit 6.
- the processing unit 4 outputs until the time T4 when the next third target value D is input.
- an instruction is performed along the indicated characteristic X1 from the indicated value A1 (time T1) to the first target value B (time T2). That would be.
- the processing unit 4 compares the target value C (first target value) at time T3 with the target value D (second target value) at time T4, and outputs the indicated value A2 (currently From the determined indicated value), it is determined whether the target value D is increasing or decreasing relative to the target value C. If it is determined that the target value D is decreasing, the target value D is changed from the indicated value A2 to the target value D.
- the indicator characteristic X2 between the indicated value A2 and the target value D is determined by a function formula described below. decide.
- the processing unit 4 sets the instruction characteristic X2 such that the instruction value A3 to be instructed at the time T3 is equal to or less than the first target value B, and inputs the next target value.
- the indicated value p is output in units of the output update period t, so that an instruction along the indicated characteristic X from the indicated value A2 (time T2) to the target value C (time T3) can be obtained.
- the processing unit 4 can obtain a smooth pointing operation according to the pointing characteristics by repeating the above-described processing.
- the above-mentioned indicating characteristic is determined by the following function expression.
- the target value to be indicated in the input cycle T n (T 1, ⁇ 2, ⁇ 3 ⁇ ) is ⁇ , and ⁇ ⁇
- the indicator motion change state (value indicating the increase / decrease trend) is used as an index for quantifying
- a and b are set according to the required response, smooth operation, and input / output cycle specifications. It is a constant that is specified.
- t a is the instruction time of the instruction value p in the output update period t.
- the processing unit 4 When the processing unit 4 inputs the first target value C corresponding to the measured quantity at the predetermined cycle T, the processing unit 4 sets the past indicated value A (the second indicated value) already indicated by the pointer 6a and the current indicated value. From the determined (to be instructed) instruction value B (first instruction value) and the first target value C, the instruction value B is indicated, and the instruction value A and the first target value C The approximation indicating characteristic is determined by a function formula described later.
- the processing unit 4 determines the behavior of the pointer 6a that moves the pointer 6a from the indicated value B toward the first target value C, and determines the behavior of the pointer 6a from the indicated value A to the first target value C (Obtain the indicated characteristic xl between time T1 and time T3), determine the indicated value D to be indicated at time T3 (input time of the first target value C), and determine the second indicated value.
- the indicated value p is output in units of the output update period t so as to conform to the indicated characteristic X1.
- the processing unit 4 outputs the indicated value p until the next second target value E corresponding to the measured amount is input.
- the processing unit 4 issues an instruction in the same manner as the above-described processing based on the instruction value B, which is the past instruction value, the instruction value D to be specified, and the second target value E.
- Indicate the value D determine the instruction characteristic x2 that approximates the instruction value B and the target value E, and determine the instruction value F to be indicated at time T4 (input time of the second target value E).
- the output value p is output in units of the output update period t between the indicated value D and the indicated value F (from time T3 to time T4) along the indicated characteristic X2.
- the processing unit 4 can obtain a smooth pointing operation according to the pointing characteristics by repeating the above-described processing.
- the above-mentioned indicating characteristic is determined by the following function expression.
- fn (ta) A n ((ta -T n ) Z (Tn + 1 -Tn)) 2
- An and Bn are counts obtained by a predetermined approximate calculation.
- t a is the instruction time of the instruction value p in the output update period t.
- counting is performed so that the indicating characteristic X passes near the indicated value and the target value.
- An and Bn are determined by the least squares method.
- Each of the above-mentioned processing methods is based on the past indicated value of guideline 6a, the indicated value of guideline 6a determined at the present time, and the target value for operating guideline 6a according to the measured amount.
- An indicator characteristic that determines the behavior of the indicator 6a is obtained by a predetermined function, and the indicator 6a is smoothly operated by an indicator value P in an output update cycle unit that conforms to the indicator characteristic. is there.
- the first and second target values according to the measured amount are sequentially input to the processing unit 4 in order to smoothly operate the pointer 6a attached to the stepping motor type driving unit 6. I do. Then, the processing unit 4 compares the first target value with the second target value, and determines whether the second target value is increasing or decreasing with respect to the first target value.
- an indicator characteristic X2 indicating a value equal to or less than the first target value from the indicator value determined at the present time of the guideline 6a is obtained by a function that obtains a curve such as a SIN function.
- a target value corresponding to the measured amount is input, and the current value of the pointer 6a is used.
- the first instruction value is indicated, and the past second instruction value and the target value are changed.
- Approximate indication characteristics X 1 and x 2 are obtained by a function that can obtain a curve such as a quadratic function, and an indication value p along the indication characteristics xl and X 2 is output update period of the processing unit 4.
- the indicator value obtained in a given input cycle is simply linearly connected, and the indicator is compared with the case where the pointer is operated with the indicated value in units of output update cycle.
- the pointer 6a can be operated smoothly.
- the above-described processing is performed, so that the measurement amount is input to the driving unit 6 from the input of the measurement amount.
- the operation of the force drive unit 6, which is accompanied by a slight delay until the instruction is given, is a relative delay, so that the user does not feel uncomfortable.
- the SIN function is used, and in the second processing method, a quadratic function is used to obtain the indicating characteristic.However, the SIN function, the quadratic function, the cubic function, and the like are obtained. It may be used.
- the target value corresponding to the measured amount is determined depending on the next variation amount of the target value. Needless to say, there are cases where an indicating characteristic that gives an instruction directly is obtained.
- the present invention may be applied to a drive device of a general instrument that inputs a measured amount directly from a measured object.
- the present invention is not limited to the one having the stepping motor type driving unit which is excellent in the followability of the pointer, and good instrument driving can be obtained even with the cross coil type driving unit.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Instrument Panels (AREA)
- Indicating Measured Values (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99943451A EP1041388B1 (en) | 1998-09-30 | 1999-09-20 | Method for driving meter |
DE69933007T DE69933007T2 (de) | 1998-09-30 | 1999-09-20 | Verfahren zur verschiebung des zeigers eines zählers |
US09/554,890 US6510399B1 (en) | 1998-09-30 | 1999-09-20 | Method of driving a meter |
KR10-2000-7005699A KR100537265B1 (ko) | 1998-09-30 | 1999-09-20 | 계기의 구동방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/276299 | 1998-09-30 | ||
JP27629998A JP3198503B2 (ja) | 1998-09-30 | 1998-09-30 | 計器の駆動方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000019216A1 true WO2000019216A1 (fr) | 2000-04-06 |
Family
ID=17567524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/005154 WO2000019216A1 (fr) | 1998-09-30 | 1999-09-20 | Procede de deplacement de l'aiguille d'un compteur |
Country Status (8)
Country | Link |
---|---|
US (1) | US6510399B1 (ja) |
EP (1) | EP1041388B1 (ja) |
JP (1) | JP3198503B2 (ja) |
KR (1) | KR100537265B1 (ja) |
CN (1) | CN1179197C (ja) |
DE (1) | DE69933007T2 (ja) |
TW (1) | TW472155B (ja) |
WO (1) | WO2000019216A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101373947B (zh) * | 2007-08-22 | 2012-05-23 | 比亚迪股份有限公司 | 一种步进电机速度的控制方法、装置及系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5723964A (en) * | 1995-02-15 | 1998-03-03 | Nippondenso Co., Ltd. | Method and device for controlling step motor |
EP0833131A1 (en) * | 1996-04-11 | 1998-04-01 | Nippon Seiki Co. Ltd. | Device for driving stepper motor type measuring instrument |
EP0863382A1 (en) * | 1996-06-28 | 1998-09-09 | Nippon Seiki Co., Ltd. | Device for driving stepping motor-type instrument |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61129575A (ja) | 1984-09-28 | 1986-06-17 | Honda Lock:Kk | パルスモ−タ式タコメ−タ |
JPH01223312A (ja) | 1988-03-02 | 1989-09-06 | Stanley Electric Co Ltd | 自動車用計器の表示方法 |
FR2664109A1 (fr) | 1990-07-02 | 1992-01-03 | Marelli Autronica | Dispositif et procede de filtrage de signaux electriques notamment pour la commande de logometres. |
GB2270567A (en) | 1992-09-12 | 1994-03-16 | Ford Motor Co | Instrument panel gauge. |
US5519605A (en) * | 1994-10-24 | 1996-05-21 | Olin Corporation | Model predictive control apparatus and method |
US5497078A (en) * | 1994-12-27 | 1996-03-05 | Ford Motor Company | Method and system for driving an air core gauge with improved pointer resolution |
-
1998
- 1998-09-30 JP JP27629998A patent/JP3198503B2/ja not_active Expired - Lifetime
-
1999
- 1999-09-09 TW TW088115543A patent/TW472155B/zh not_active IP Right Cessation
- 1999-09-20 KR KR10-2000-7005699A patent/KR100537265B1/ko not_active IP Right Cessation
- 1999-09-20 EP EP99943451A patent/EP1041388B1/en not_active Expired - Lifetime
- 1999-09-20 CN CNB998017035A patent/CN1179197C/zh not_active Expired - Fee Related
- 1999-09-20 DE DE69933007T patent/DE69933007T2/de not_active Expired - Lifetime
- 1999-09-20 US US09/554,890 patent/US6510399B1/en not_active Expired - Fee Related
- 1999-09-20 WO PCT/JP1999/005154 patent/WO2000019216A1/ja active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5723964A (en) * | 1995-02-15 | 1998-03-03 | Nippondenso Co., Ltd. | Method and device for controlling step motor |
EP0833131A1 (en) * | 1996-04-11 | 1998-04-01 | Nippon Seiki Co. Ltd. | Device for driving stepper motor type measuring instrument |
EP0863382A1 (en) * | 1996-06-28 | 1998-09-09 | Nippon Seiki Co., Ltd. | Device for driving stepping motor-type instrument |
Non-Patent Citations (1)
Title |
---|
See also references of EP1041388A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20010032458A (ko) | 2001-04-25 |
TW472155B (en) | 2002-01-11 |
EP1041388A4 (en) | 2002-10-02 |
US6510399B1 (en) | 2003-01-21 |
KR100537265B1 (ko) | 2005-12-19 |
CN1286755A (zh) | 2001-03-07 |
DE69933007D1 (de) | 2006-10-12 |
DE69933007T2 (de) | 2007-04-12 |
EP1041388A1 (en) | 2000-10-04 |
CN1179197C (zh) | 2004-12-08 |
JP3198503B2 (ja) | 2001-08-13 |
JP2000105253A (ja) | 2000-04-11 |
EP1041388B1 (en) | 2006-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4510587A (en) | Method and arrangement for the evaluation of signals from an ultrasonic displacement path measuring system | |
US4939675A (en) | Digital system for controlling mechanical instrument gauges | |
JP3013775B2 (ja) | ステッピングモータ式計器の駆動装置 | |
JP2953502B2 (ja) | ステッピングモータ式計器の駆動装置 | |
JPS6047987B2 (ja) | 機械的測定値、例えば車両速度を表示する装置 | |
WO2000019216A1 (fr) | Procede de deplacement de l'aiguille d'un compteur | |
JP2000137044A (ja) | 計器の駆動方法 | |
WO2001094891A1 (fr) | Procede d'entrainement a regulation | |
JP3106462B2 (ja) | 指示計器の駆動装置 | |
JP3786197B2 (ja) | 車両用計器及びその駆動方法 | |
JP2825561B2 (ja) | 車両用コンビネーションメータ装置 | |
JP3407546B2 (ja) | アナログ式計器 | |
JP2639257B2 (ja) | 指示計器 | |
EP0505826A1 (en) | Meter driving method | |
JP3436515B2 (ja) | 測定装置、信号出力方法および記憶媒体 | |
SU1495173A1 (ru) | Устройство дл контрол путевых параметров транспортного средства | |
JPH10300524A (ja) | 表示装置及びその表示方法 | |
KR100278514B1 (ko) | 콤비미터 시스템 구동장치 | |
RU2048529C1 (ru) | Устройство определения усредненной скорости схода шихты в доменной печи | |
JPH1123603A (ja) | ステッピングモータ式計器の駆動装置 | |
JPH09145742A (ja) | 交差コイル型計器 | |
JPH034121A (ja) | 表示計器 | |
JP2001341553A (ja) | 指示計器の駆動方法 | |
JPH06230037A (ja) | 交差コイル駆動回路 | |
JPH06295365A (ja) | タコグラフ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 99801703.5 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09554890 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020007005699 Country of ref document: KR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1999943451 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1999943451 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020007005699 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 1020007005699 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 1999943451 Country of ref document: EP |