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1.发明公开Resolver/digital converter and control apparatus using the same 审中-公开Resolver / Digital-Wandler undSteuergerätmit Hilfe eines solchen Wandlers公开(公告)号：EP2228696A1
公开(公告)日：2010-09-15
申请号：EP10002937.0
申请日：2005-01-27
Applicant: Hitachi, Ltd.
Inventor： Kanekawa, Nobuyasu , Sasaki, Shoji , Oyama, Katusya , Koseki, Tomonobu
CPC classification number: B60T8/885 , B60T2270/402 , B62D5/0481 , G01D5/2073 , G05B9/02 , H03M1/1076 , H03M1/645
Abstract: 1. A motor-driven power steering apparatus, comprises a digital converting portion (2) that receives resolver signals from a resolver; an exciting signal generator (3) that generates an exciting signal and supplies said exciting signal to the resolver; a conversion trigger generator (4) that generates a conversion trigger according to said exciting signal; an A/D converter (11) that converts said resolver signals to digital values in response to said conversion trigger; a computing portion (12) that detects a failure by computing a value of electric current in a motor (8), and supplies said current value to said motor having its shaft connected to a controlled object (9) and the resolver; and a motor control apparatus for controlling the controlled obj ect (9) including a steering column and a steering mechanism, wherein a steering force is assisted according to a steering torque detected by a torque sensor (13), the assistance to said steering force is stopped when said steering torque detected by said torque sensor exceeds a predetermined threshold value.
Abstract translation: 1.一种电动机动力转向装置，包括从旋转变压器接收分解器信号的数字转换部分（2） 激励信号发生器（3），其产生激励信号并将所述激励信号提供给旋转变压器; 转换触发发生器（4），其根据所述激励信号产生转换触发; A / D转换器（11），其响应于所述转换触发而将所述分解器信号转换成数字值; 计算部分（12），通过计算电动机（8）中的电流值来检测故障，并将所述电流值提供给其轴连接到受控对象（9）和旋转变压器的所述电动机; 以及用于控制包括转向柱和转向机构的受控对象（9）的电动机控制装置，其中根据由转矩传感器（13）检测到的转向转矩来辅助转向力，对所述转向力的帮助是 当由所述转矩传感器检测到的转向转矩超过预定阈值时停止。
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公开(公告)号：EP2211148A2
公开(公告)日：2010-07-28
申请号：EP09015331.3
申请日：2009-12-10
Applicant: KUKA Roboter GmbH
Inventor： Steidl, Dietmar
CPC classification number: H02P13/10 , G01D5/2073 , H03M1/1033 , H03M1/485
Abstract: Ein erfindungsgemäßes Verfahren zur Bestimmung der Winkellage (p) eines Resolvers umfasst die Schritte: Erregen einer Erregerwicklung (R) mit einem Referenzsignal (U(t)); Abtasten eines aus dem Referenzsignal resultierenden ersten Signals (U S1 (t)) in einer ersten Wicklung (S1) und eines aus dem Referenzsignal resultierenden zweiten Signals (U S2 (t)) in einer zweiten Wicklung (S2); Bestimmung eines unkompensierten Fourierkoeffizienten (z S1 ) für das erste und eines unkompensierten Fourierkoeffizienten (z S2 ) für das zweite Signal (U S1 (t), U S2 (t)); Bestimmen eines kompensierten Fourierkoeffizienten (z S1, kom ) für das erste und eines kompensierten Fourierkoeffizienten (z S2, kom ) für das zweite Signal (U S1 (t), U S2 (t)); und
Bestimmung der Winkellage (p) des Resolvers aus den kompensierten Fourierkoeffizienten (z S1, kom , z S2, kom ); wobei kompensierte Fourierkoeffizienten (z S1, kom , z S2, kom ) die Änderung der unkompensierten Fourierkoeffizienten (z S1, z S2 ) aufgrund der Änderung der Winkellage während der Abtastung im Wesentlichen kompensieren.Abstract translation: 该方法涉及在两个定子绕组（S1，S2）中采样由正弦参考信号产生的两个信号。 确定采样信号的未补偿傅里叶系数。 根据系数确定旋转变压器的角位置（rho）。 确定采样信号的补偿傅里叶系数。 从补偿系数确定位置，该补偿系数根据解算器的相移和/或采样期间的位置变化来补偿未补偿系数的变化。 还包括以下独立权利要求：（1）用于自动确定解算器的角位置的装置（2）用于执行用于确定解算器的角位置的方法的计算机程序（3），计算机程序产品包括程序 用于执行用于确定旋转变压器的角位置的方法的计算机程序的代码。
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公开(公告)号：EP2177879A2
公开(公告)日：2010-04-21
申请号：EP09251431.4
申请日：2009-05-29
Applicant: Hamilton Sundstrand Corporation
Inventor： Lillestolen, Kirk A. , Bauer, Ronald P. , Saloio, James Jr.
CPC classification number: G01D5/2291 , H03M1/1225 , H03M1/645
Abstract: A resolver interface (10) includes separate anti-aliasing filters (20, 22) for sine and cosine signals. The separately filtered signals are then time share multiplexed (26) to a single analog to digital (A/D) converter (28). Because all of the inputs are fed through the same A/D converter, any error, difference or shift caused by the A/D converter is shared across all of the inputs. A Field Programmable Gate Array (FPGA) (30) and processor (38) are used to digitally filter (34), demodulate (36) and compute position (46).
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4.发明授权Clock generation circuit, analog-digital angle converter, and angle detection apparatus 有权时钟产生电路，模拟到数字转换器的角度和角度检测装置
公开(公告)号：EP2078932B1
公开(公告)日：2010-02-10
申请号：EP09000102.5
申请日：2009-01-07
Applicant: Japan Aviation Electronics Industry, Limited
Inventor： Nakazato, Kenichi , Nishimura, Hisashi
CPC classification number: G01D5/2451 , H03M1/0624 , H03M1/485
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5.发明公开Method of detecting abnormality of R/D converter 有权Verfahren zur Erkennung vonAbnormalitäteneines Resolver / Digitalwandlers
公开(公告)号：EP1602991A1
公开(公告)日：2005-12-07
申请号：EP04254807.3
申请日：2004-08-10
Applicant: TAMAGAWA SEIKI KABUSHIKI KAISHA
IPC: G05B19/4062 , G01D5/245 , H03M1/64 , G01D3/08
CPC classification number: H03M1/1076 , G05B2219/33256 , H03M1/108 , H03M1/645
Abstract: To achieve miniaturization of a resolver apparatus as a sys tem, to obtain the resolver apparatus at a low cost, and to improve failsafe by installing an abnormality detection unit and a self-diagnosis circuit within the R/D converter. According to the present invention, an abnormality detecting method for an R/D converter in a resolver apparatus includes detecting abnormalities of at least the resolver itself (1), a cable wiring (2) through which the resolver (1) and the R/D converter (3) are connected to each other, and the R/D converter (3) itself by an abnormality detection unit (4) provided in the R/D converter (3).
Abstract translation: 为了实现解析器装置的系统的小型化，以低成本获得分解器装置，并且通过在R / D转换器内安装异常检测单元和自诊断电路来改善故障安全。 根据本发明，解算装置中的R / D转换器的异常检测方法包括检测至少旋转变压器本身（1）的异常，电磁线（2），旋转变压器（1）和R / D转换器（3）彼此连接，并且R / D转换器（3）本身由设置在R / D转换器（3）中的异常检测单元（4）连接。
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公开(公告)号：EP1450148A1
公开(公告)日：2004-08-25
申请号：EP04002361.6
申请日：2004-02-03
Applicant: Minebea Co., Ltd.
CPC classification number: G01D5/2073 , H03M1/645
Abstract: A deviation angle detector (1) enlarges its application range by enlarging the detectable deviation angle range. The deviation angle detector (1) has two resolvers (VR1 and VR2), which have rotors (10 and 20), stators (11 and 21), and single excitation windings and multiple output windings (12, 13 and 22, 23) that are coiled around stators (11 and 21). The difference in rotation angles of the resolvers (VR1 and VR2) is detected as a deviation angle (Δθ) by calculating the output signal that corresponds to the rotation angles of both resolvers digitally or in analog. The corresponding output windings (12, 13 and 22, 23) of the resolvers (VR1 and VR2) are connected in series and the output signals (Es and Ec) are extracted from the serially connected output windings and calculated digitally or in analog.
Abstract translation: 偏差角度检测器（1）通过扩大可检测偏差角度范围来扩大其应用范围。 偏差角检测器（1）具有两个分解器（VR1和VR2），它们具有转子（10和20），定子（11和21）以及单个激励绕组和多个输出绕组（12,13和22,23） 卷绕在定子周围（11和21）。 旋转变压器（VR1和VR2）的旋转角度的差别通过计算对应于两个旋转变压器的旋转角度的数字或模拟的输出信号而被检测为偏差角（DELTA＆amp;等）。 分解器（VR1和VR2）的相应的输出绕组（12,13和22,23）串联连接，输出信号（Es和Ec）从串联连接的输出绕组中提取出来，并以数字或模拟方式计算。
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公开(公告)号：EP1058390A3
公开(公告)日：2003-07-09
申请号：EP00100465.4
申请日：2000-01-11
Applicant: MINEBEA CO., LTD.
Inventor： Takehara, Takao, c/o Minebea Co., Ltd.
IPC: H03M1/64
CPC classification number: H03M1/485
Abstract: There is provided an R/D converter capable of realizing a high speed response. When a sine wave for excitation of a resolver is a positive (or negative) maximum value, an AD converter makes AD conversion of a sine-wave output and a cosine-wave output of the resolver and makes input to a DSP. The DSP calculates on the basis of the input data, and outputs an obtained digital value to a DA converter and the like. Since the DSP calculates a rotor shaft angle, as compared with prior art (R/D converter of a tracking system) which includes a close loop made up of a demodulator circuit, a voltage controlled oscillator, and the like, and carries out a kind of PLL control, it becomes possible to carry out rotor shaft angle calculation at higher speed, and the high speed response can be realized by this. Since the rotor shaft angle is obtained through a digital operation, a compensation circuit of temperature drift, which has been required in the prior art, becomes unnecessary, and by that, the whole structure becomes simple, and the cost can be reduced.
Abstract translation: 提供了能够实现高速响应的R / D转换器。 当用于激励解算器的正弦波是正（或负）最大值时，AD转换器对解算器的正弦波输出和余弦波输出进行AD转换，并将其输入到DSP。 DSP基于输入数据进行计算，并将获得的数字值输出到DA转换器等。 由于DSP计算转子轴角度，与包括由解调器电路，电压控制振荡器等构成的闭合回路的现有技术（跟踪系统的R / D转换器）相比，执行一种 通过PLL控制，能够以更高的速度进行转子轴角度的计算，并且能够实现高速响应。 由于转子轴角是通过数字操作获得的，所以现有技术中所需的温度漂移补偿电路变得不必要，并且由此整个结构变得简单，并且可以降低成本。
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公开(公告)号：EP0877489A3
公开(公告)日：2001-10-10
申请号：EP98108304.1
申请日：1998-05-07
Applicant: KOLLMORGEN CORPORATION
Inventor： Vlahu, Saso P.
CPC classification number: H03M1/645
Abstract: A resolver to digital converter wherein the data from the resolver (10) is processed according to octants which provide the most significant 3-bits indicating shaft position. The sine and cosine values from the resolver (10) are further processed according to the octant with the smaller value being divided by the larger value to derive a tangent value in the range of zero to one. A look-up table can then be used to provide a linear position indication from the tangent values which are then added to the octant value to obtain the shaft position in-dication.
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公开(公告)号：EP0746907A4
公开(公告)日：1998-03-11
申请号：EP93919999
申请日：1993-08-13
Applicant: TRJ & CO
Inventor： SPAULDING CARL P
CPC classification number: H03M1/645 , G01D5/2497 , G01D5/34784
Abstract: An absolute decoder comprises a measuring scale (1) with at least one track and a plurality of analog sensors (47, 48) for such track. The output of each sensor is modulated by the track to generate a plurality of cyclic non-sinusoidal multiphase analog signals from the sensors indicative of the relative position of the sensors and the measuring scale. The multiphase signals are converted to digital form (50, 51) and conditionally added or subtracted (58) to obtain an output that increases linearly in proportion to the position of the sensors relative to the measuring scale.
