JPH01262415A - Resolver angle detecting device - Google Patents
Resolver angle detecting deviceInfo
- Publication number
- JPH01262415A JPH01262415A JP9117588A JP9117588A JPH01262415A JP H01262415 A JPH01262415 A JP H01262415A JP 9117588 A JP9117588 A JP 9117588A JP 9117588 A JP9117588 A JP 9117588A JP H01262415 A JPH01262415 A JP H01262415A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resolver
- signals
- alarm
- abnormality
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005856 abnormality Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業−１−の利用分野］
本発明はレゾルバ角度検出装置に関し、特にレゾルバ電
圧の異常な変動を検出してこれを表示する電圧異常検出
装置を備えたレゾルバ角度検出装置に関する。[Detailed Description of the Invention] [Field of Application in Industry-1-] The present invention relates to a resolver angle detection device, and particularly to a resolver angle detection device equipped with a voltage abnormality detection device that detects and displays abnormal fluctuations in resolver voltage. Regarding equipment.
従来のレゾルバ角度検出装置は、第３図に示すようにレ
ゾルバから得られる正弦（ｓｉｎ）、余弦（ｃｏｓ）の
各アナログ信号を復調器１．２によりそれぞれ復調し、
マルチプレクサＩＯにより切換え選択する０選択された
復調信号をＡ／Ｄ変換器１１でディジタル信号に変換し
、演算処理部１２にて回転軸の角度情報を求め、これを
１０進数で表示している。この場合、演算処理部１２で
はレゾルバ電圧の異常にかかわらず角度情報を算出し、
表示を行っている。As shown in FIG. 3, the conventional resolver angle detection device demodulates each of the sine (sin) and cosine (cos) analog signals obtained from the resolver using a demodulator 1.2.
The A/D converter 11 converts the demodulated signal selected by the multiplexer IO into a digital signal, and the arithmetic processing unit 12 obtains angle information of the rotation axis, which is displayed in decimal notation. In this case, the arithmetic processing unit 12 calculates the angle information regardless of the resolver voltage abnormality,
Displaying.
上述した従来の角度検出装置は、復調して得られるレゾ
ルバ電圧が、本来のｓｉｎ電圧、ｃｏｓ電圧から外れて
いる場合でも、演算処理部１２においてはこの異常なｓ
ｉｎ、ｃｏｓ電圧から角度を算出し表示してしまうため
、レゾルバ電圧の異常が判らない状態で間違った角度情
報をそのまま表示してしまうという問題がある。In the conventional angle detection device described above, even if the resolver voltage obtained by demodulation deviates from the original sine voltage or cosine voltage, the arithmetic processing unit 12 detects this abnormal s.
Since the angle is calculated and displayed from the in and cos voltages, there is a problem in that incorrect angle information is displayed as is without knowing whether there is an abnormality in the resolver voltage.
本発明はレゾルバ電圧の異常を発見して誤った角度情報
を表示することを防止したレゾルバ角度検出装置を提供
することを目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a resolver angle detection device that prevents display of erroneous angle information due to the discovery of resolver voltage abnormalities.
本発明のレゾルバ角度検出装置は、レゾルバからのｓｉ
ｎ、ｃｏｓ信号を復調し、かつこれを選択した上で演算
処理を行って角度情報を出力させるレゾルバ角度検出装
置において、前記各信号の復調信号を自乗した信号に変
換する乗算器と、自乗されたｓｉｎ、ｃｏｓ信号の和信
号を生成する加算器と、前記加算器の出力信号を所定の
電圧と比較する比較器と、前記比較器の出力に応答して
アラームを発生するアラーム発生部と、前記アラームを
表示するアラーム表示部とで構成される電圧異常検出部
を備えて構成される。The resolver angle detection device of the present invention has a si
In a resolver angle detection device that demodulates a n, cos signal, selects it, performs arithmetic processing, and outputs angle information, the device includes a multiplier that converts the demodulated signal of each of the signals into a squared signal; an adder that generates a sum signal of sin and cos signals; a comparator that compares the output signal of the adder with a predetermined voltage; and an alarm generator that generates an alarm in response to the output of the comparator. The device is configured to include a voltage abnormality detection unit configured with an alarm display unit that displays the alarm.
また、前記復調器の出力信号をそれぞれ切換え選択する
マルチプレクサと、選択されたアナログ信号をディジタ
ル信号に変換するＡ／Ｄ変換器と、変換されたｓｉｎ、
ｃｏｓ電圧のディジタル量を自乗し和を求め、所定のデ
ィジタル電圧と比較してアラーム信号を発生ずる演算処
理部と、前記アラーム信号を表示するアラーム表示部と
を備えた構成としてもよい。Further, a multiplexer that switches and selects the output signal of the demodulator, an A/D converter that converts the selected analog signal into a digital signal, and a converted sin;
It may also be configured to include an arithmetic processing section that squares the digital amount of the cosine voltage, calculates the sum, and compares it with a predetermined digital voltage to generate an alarm signal, and an alarm display section that displays the alarm signal.
上述した構成では、復調された信号を自乗し、加算して
得た値を、基準値と比較することで電圧の異常を検出し
、これをアラーム信号として表示することにより、電圧
異常による角度検出の誤りを表示させる。In the configuration described above, voltage abnormality is detected by squaring the demodulated signal and comparing the obtained value with a reference value, and by displaying this as an alarm signal, angle detection due to voltage abnormality is performed. display the error.
次に、本発明を図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を表すブロック図であ゛る。FIG. 1 is a block diagram showing one embodiment of the present invention.
レゾルバからのｓｉｎ、ｃｏｓ信号を復調器１゜２によ
ってそれぞれ復調し、マルチプレクサ１０により切換え
選択する。選択されたｓｉｎ、及びｃｏｓの復調信号を
Ａ／Ｄ変換器１１でディジタル信号に変換し、演算処理
部１２にて角度情報を計算するように構成している。The sine and cosine signals from the resolver are each demodulated by a demodulator 1.degree. 2, and are switched and selected by a multiplexer 10. The A/D converter 11 converts the selected sine and cos demodulated signals into digital signals, and the arithmetic processing section 12 calculates angle information.
更に、前記復調器１．２によって復調されたｓｉｎ、ｃ
ｏｓ信号を乗算器３．４によってそれぞれを自乗し、加
算器５によってこれらの自乗信号の和を求め、比較２Ｓ
６によって要求されるある一定電圧と比較し、電圧が異
なる場合にアラーム発生部７からアラーム信号を発生さ
せ、アラーム表示部８で異常であることを表示する。Furthermore, sin,c demodulated by said demodulator 1.2
The os signals are each squared by a multiplier 3.4, the sum of these squared signals is determined by an adder 5, and a comparison 2S is performed.
6, and if the voltages are different, an alarm signal is generated from the alarm generation section 7, and an alarm display section 8 indicates that there is an abnormality.
この異常判定の考え方は、次の通りである。第２図（ａ
）及び（ｂ）において、レゾルバからのｓｉｎ、ｃｏｓ
信号の大きさは振幅をＡ、位相のずれをθ５．θゎとす
ると、それぞれ
Ｙ＝Ａｓｉｎ（θ十θ−） （ｖＯＬＴ、−（１）χ−
Ａｃｏｓ（θ十θｃ） ＋ｖＱＬｒ＋ −（２）（但
しθ５＝θｏ＋９０°）と表される。The concept of this abnormality determination is as follows. Figure 2 (a
) and (b), sin, cos from the resolver
The magnitude of the signal is defined by the amplitude as A and the phase shift as θ5. If θゎ, then Y = Asin(θ + θ-) (vOLT, -(1)χ-
It is expressed as Acos(θ+θc) +vQLr+ −(2) (where θ5=θo+90°).
（１）、（２）によって表されるｓｉｎ、ｃｏｓ電圧の
ヘクトルを？、又とすると、以上のｓｉｎ。What is the hector of sin and cos voltage expressed by (1) and (2)? , and the above sin.
ＣＯＳの関係から２つの電圧ヘクトルの和！は、ｖ＝ｘ
＋ｙとなり、このベクトル和Ｖの大きさを■とするとＶ
＝ （Ｘｔ＋Ｙ” ）”” ＝Ａ （一定）となるはず
であるから、レゾルバの電圧異常検出の一方法として■
≠Ａ、すなわち■２≠Ａ２となった時に異常と判定する
方法が考えられる。From the COS relationship, the sum of two voltage hectors! is v=x
+y, and if the size of this vector sum V is ■, then V
= (Xt+Y")"" = A (constant), so one way to detect resolver voltage abnormality is ■
One possible method is to determine that there is an abnormality when ≠A, that is, ■2≠A2.
この判定は、乗算器３．４．比較器６及びアラーム発生
回路７によって行う方法の他に、演算処理部１２によっ
て、レゾルバｓ ｉ ｎ、 ｃ ｏ ｓ信号からベク
トル和の大きさ■をディジタル量で計算及び比較し、異
常と判定しても良い。This determination is performed by multipliers 3.4. In addition to the method performed by the comparator 6 and the alarm generation circuit 7, the arithmetic processing unit 12 calculates and compares the magnitude of the vector sum from the resolver sin and co s signals as a digital quantity, and determines that there is an abnormality. It's okay.
〔発明の効果］
以上説明したように本発明は、レゾルバからのｓｉｎ、
ｃｏｓ復調電圧の自乗の和■が■≠Ａとなる時に異常と
判定してアラーム表示を行うことにより、レゾルバの電
圧異常を容易に発見でき、誤った角度検出を未然に防止
できるという効果がある。[Effects of the Invention] As explained above, the present invention provides sin from the resolver,
By determining an abnormality and displaying an alarm when the sum of the squares of the cos demodulated voltage ■ becomes ■≠A, it is possible to easily discover resolver voltage abnormalities and prevent erroneous angle detection. .
【図面の簡単な説明】
第１図は本発明の一実施例のブロック図、第２図（ａ）
及び（ｂ）はそれぞれ本発明に係るレゾルバ電圧異常判
定を説明するためのレゾルバ信号特性図及びベクトル図
、第３図は従来の角度検出器の装置構成の一例を表すブ
ロック図である。
１．２・・・復調器、３，４・・・乗算器、５・・・加
算器、６・・・比較器、７・・・アラーム発生部、８・
・・アラート表示部、９・・・レゾルバ電圧異常検出器
、１０・・マルチプレクサ、１１・・・Ａ ／ Ｉ）変
１桑器、１２・・・演算処理部。
（ａ） 第２図
２λｒ[Brief Description of the Drawings] Figure 1 is a block diagram of an embodiment of the present invention, Figure 2 (a)
and (b) are a resolver signal characteristic diagram and a vector diagram for explaining resolver voltage abnormality determination according to the present invention, respectively, and FIG. 3 is a block diagram showing an example of the device configuration of a conventional angle detector. 1.2... Demodulator, 3, 4... Multiplier, 5... Adder, 6... Comparator, 7... Alarm generator, 8...
...Alert display unit, 9...Resolver voltage abnormality detector, 10...Multiplexer, 11...A/I) variable 1 unit, 12... Arithmetic processing unit. (a) Figure 2 2λr
Claims (1)
により復調し、かつこれを選択した上で演算処理を行っ
て角度情報を出力させるレゾルバ角度検出装置において
、前記各信号の復調信号を自乗した信号に変換する乗算
器と、前記２つの自乗電圧の和を発生させる加算器と、
前記加算器の出力電圧を所定の電圧と比較する比較器と
、前記比較器の出力に応答してアラームを発生するアラ
ーム発生部と、前記アラームを表示するアラーム表示部
から構成される電圧異常検出部を備えたことを特徴とす
るレゾルバ角度検出装置。1. In a resolver angle detection device that demodulates the sine and cosine signals from the resolver using a demodulator, selects them, performs arithmetic processing, and outputs angle information, a signal obtained by squaring the demodulated signal of each of the signals. a multiplier for converting into , and an adder for generating a sum of the two squared voltages;
Voltage abnormality detection comprising a comparator that compares the output voltage of the adder with a predetermined voltage, an alarm generator that generates an alarm in response to the output of the comparator, and an alarm display unit that displays the alarm. A resolver angle detection device characterized by comprising: a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9117588A JPH01262415A (en) | 1988-04-13 | 1988-04-13 | Resolver angle detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9117588A JPH01262415A (en) | 1988-04-13 | 1988-04-13 | Resolver angle detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01262415A true JPH01262415A (en) | 1989-10-19 |
Family
ID=14019126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9117588A Pending JPH01262415A (en) | 1988-04-13 | 1988-04-13 | Resolver angle detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01262415A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121108A (en) * | 2001-10-11 | 2003-04-23 | Denso Corp | Method for detecting abnormality of resolver for vehicle |
| DE102004002629A1 (en) * | 2004-01-19 | 2005-08-11 | Elan Schaltelemente Gmbh & Co. Kg | Inductive drive angle position sensor measurement error detection procedure sends sine and cosine output signals to processor for trigonometric comparison |
| EP1734344A1 (en) * | 2005-06-17 | 2006-12-20 | Jungheinrich Aktiengesellschaft | Rotating angle sensor, particulary for a steering input device of an electric power steering of an industrial truck |
| KR100728430B1 (en) * | 2004-09-10 | 2007-06-13 | 미츠비시덴키 가부시키가이샤 | Motor control device |
-
1988
- 1988-04-13 JP JP9117588A patent/JPH01262415A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121108A (en) * | 2001-10-11 | 2003-04-23 | Denso Corp | Method for detecting abnormality of resolver for vehicle |
| DE102004002629A1 (en) * | 2004-01-19 | 2005-08-11 | Elan Schaltelemente Gmbh & Co. Kg | Inductive drive angle position sensor measurement error detection procedure sends sine and cosine output signals to processor for trigonometric comparison |
| DE102004002629B4 (en) * | 2004-01-19 | 2020-12-24 | K.A. Schmersal Gmbh & Co. Kg | Method for error detection in a position detection carried out by means of an inductive encoder such as a resolver |
| KR100728430B1 (en) * | 2004-09-10 | 2007-06-13 | 미츠비시덴키 가부시키가이샤 | Motor control device |
| EP1734344A1 (en) * | 2005-06-17 | 2006-12-20 | Jungheinrich Aktiengesellschaft | Rotating angle sensor, particulary for a steering input device of an electric power steering of an industrial truck |
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