DE1588933A1 - Device for adapting two periodic pulse trains to one another - Google Patents

Description

• A 35 451 b -JC-

b - 137
01/26/68. ■ _...-.

Woodward Governor Company. Rockford, Illinois., U.S.A.

Device for adapting two periodic pulse trains to one another

The invention "relates to a device for frequency-based Adaptation of two periodic pulse trains to one another, especially to achieve synchronization of two prime movers, which refers to the frequency-based adaptation of two periodic pulse trains.

can lead back.

Especially with zv / single-engine plug-in tools, it is desirable Always operate both prime movers at the same speed. The throttle levers for both prime movers are operated manually by the pilot, and although B-ie are usually close to each other And eo can be operated with one hand, so let yourself be but do not set bo exactly the same so that the rotation

009838/1673

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numbers of both engines are the same; Different speeds of rotation can also result from different propeller pitches, which cannot be set exactly the same for both drive machines by hand. However, different speeds of the two motors lead to undesirable vibrations and beating in the plug stuff, which can be not only annoying for the passengers, but also dangerous for the cell. It has therefore become customary to use one drive machine as the main machine, which automatically controls the other in such a way that both run at the same speed regardless of the position of their throttle lever or the setting of the propeller pitches. : ...- .->,; . · ... s

The invention is based on the object "i ~ an input"> direction adjustment for frdquenzmässigeh two periodic pulse trains together to create the ausBchliesslich discrete digital signals value "works and DES.. · ■ half not continuously variable analog signals used = ,. " as is the case with the devices that have been customary up to now, some of which work with an integration of pulse trains of variable period or amplitude or with sawtooth pulse generators. ^ ^ -,:,. · ■ ^ a. '.'

The problem is solved by a first,. 0 0 383 871 673 * - ^lf ; . ■.

A 35 451 bj -Jr-

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26. l ·. BQ. ■ ..

Detached from the two pulse trains controlled control pulse generator, at the output of which a control pulse can always be tapped if there is no pulse of the second pulse length between two pulses of the first pulse train, as well as by a second control pulse generator, also controlled by both pulse trains, at the output of which a control pulse can always be tapped if there is no pulse of the ''; · '·: · first pulse train between two pulses of the second pulse train, as well as one of the control ' (■ '-.';-; pulses the two Steuerimpulögeber in a ^{_{direction;;:;..}} Impulsfolgefreq.uenzerhöhung _or; ~ .. lowering controlled adjusting device for the zweite.Impulsfolge the inventive device is therefore free from the Uhgenauigkeiten, the analog signals as a result of instabilities in the power supply or fluctuations in sensitivity.. of control elements due to aging or temperature changes, always bring with them dimensional play the usual fluctuations of the Ver'-: Strengthening oder.2 other characteristics of amplifiers or signal level Di8ki-; i ^ i: ia $ oron not matter, so that the inventive device far more precise than the bis ■ \ 3 ago known works; in addition, it can be

Relatively few simple and extremely reliable ^r ££ / \ H

Assemble components that are always only in a two- '' ·

Need to work state-of-the-art. Finally ^: ■ '-.....

/. , -Ml 009830/1673 · ^v '.: .- ^>: .-; ^

BATH

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the device according to the invention can easily be so train them to readjust in extremely small but rapidly successive steps so that even if some control impulses fail through a. · The facility's geographic function is not entirely accurate is not significantly affected.

It is often inevitable for the system to be controlled

follow · ■■ -.

that the pulse frequency of the pulse trains does not temporally |

exactly constant 1st. The disadvantages of unnecessary and undesired readjustment procedures, which normally follow from this, can be eliminated extremely easily with a device according to the invention, if according to a ··. Another feature of the invention, the elements of the device according to the invention are doubled and cascaded one behind the other; In detail, a further pair of control pulse generators is therefore between their.ersten and second control pulse generators and the actuating device. ...... · in their effect with regard to the control pulses of the first two control pulse generators correspond to the effect of the latter with regard to the two pulse trains -. · - ■■. speak. With such a facility I let the - / y. do not adapt the two output pulse sequences to each other, but also eliminate the consequences of non-periodic pulse sequences .

;.; |; OoW-38/1673. _BÄÖ '"^

A 55 451 h
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proper facility has the advantage that it is extraordinarily Wirtschaftuch can be made because only the individual components are required twice.

A further requirement with regard to the prevention of unnecessary adjustment results from the fact that coinciding main and comparison pulses in the device described so far would lead to a control step, which, however, is undesirable if the adaptation is complete. The device according to the invention is therefore supplemented by a so-called anti-icing unit, namely by an input AND element for the first and second pulse train, the output of which is connected to the input of a square-wave pulse generator, at the output of which a signal is normally present disappears during a ZeitintervalleB ti, the beginning of which with the passing · dee input AND Gliedee Combine precipitated, BEZW further by first ton OCE. the second pulse train is ■ .. ■ controls® pulse generator »whose output pulse is delayed by a time interval dl compared to the respective pulse train ■ · -.0ind _p . ¥ @ loheö shorter than the time interval ti, and -by g ¥ @ i vmitere and elements, one of which from the first "pulse generator and -the Kechteckoimpulegeber and their

Tom second Irapulsgeber so / ie the 'Rschtcka' '. controllable iat, and their Aiisgäöge with the; "

θ θ * ■> r ^ / Ί f $ ^: ] "1 '■

BATH

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Inputs of the two control pulse gcbor are connected.

Further features representing advantageous developments of the invention emerge from the patent claims and / or from the following description of three implementation examples which are shown in the drawing. It show: ' _r -

,, ■ : \ Uj / 1 6 ^r; I ^BAD ORIGINAL

Pig. 1 shows a block diagram of a synchronizing device according to the invention;

Pig · 2 is a timing diagram of the various signals that occur in the Li - ::::: device according to FIG. 1 when the speeds of two prime movers are the same;

Pig. 3 shows a corresponding timing diagram for PaIl ₁ "in the

;: '.!. a controlled machine faster than a main machine runs; .

4 is a timing diagram corresponding to Pig «3 when the controlled Machine is running slower than the main machine;

Fig. 5 is a block diagram which differs from that of Pig. 1 to a so-called dither filter has been expanded;

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'•' Pig. 6 a timing diagram of the relationships between the various in the circuit according to Pig. 5 occurring signals, from which it can be seen how resulting from torsional vibrations superimposed frequencies are eliminated at the same speed;

Pig, 7 is a timing diagram of the circuit according to Pig. 5 occurring Signals when the speed of the controlled machine changes from faster to slower than the main machine;

• *

Pig «8a parts of a block diagram area to be put together that are demiind 8b

. person you would like Fig 5 corresponds, however, _by:; f; in

thick lines more drawn out. Modules are supplemented, the Γ to form an anticoinsidence inlet with automatic U. phase adjustment and

Pig. 9 is a timing diagram showing the various in the "edge phase * ■■■ '' .-, the block diagram of FIG matching unit 8 \ occurring?. Shows signals.

Figs. 1 shows a block diagram of a synchronizing device, which serves the revolution numbers of two _r rTrieb-: works to equalize to each other and at the same height _to: hold '. The two drives are a 'main riveting machine 20, which drives a main consumer 21, and a controlled machine 22 for driving a consumer 23'. The controls for the two machines are two hand throttle levers 25 and 26

. : ^ ^v " ^: 'f ^s 009838/1673'. * '['. ' ^, ΐ

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~ iait-tel3 wire ropes 27 and 28 coupled. The two throttle levers 25 and 26 are now adjusted by hand, either individually or together, and then the rotary control planer 29 and 30 are so verb'sohvenlct that the rotation numbers of the machines 20, 22 depending on whether the throttle valve of the corresponding Machine is opened or closed, increased or decreased . '"" r. ^v '

; pie position of the threatened control lever 30 of the geotouerten. · Machine 22 can be adjusted to change the Bren * aotoffi; uflu3003 independently of the setting dos Handgashobelo 26 for the controlled Kasehine ο in. The outline of the invention is done by means of an Iinpulosteuorvoi ^, which the speed- B ^ euQThQljel 3C- in kloinon steps in the required Z ^ sii- ^ iC ' Vccr: -. "IV' // onlr * s ₉ As shown, hand throttle Jiil & ol S6 7li \ -ion speed 3 control lever, 30 connecting r-ÄtoüL-i v "vi *: '-3? Iltoilo 28a and 28b, z - /. Leonen which ^: r-. o- ::,:? vi :. .1. -r ^ riv '. .. or 'vorkiirzb ^ ren: V: ■ ;; inJunßseloinai ■>.' ■ '■ • ^ Λ.αιΐΰ _"·; oici Tcrbiiiüunjfleleraont enthüiz -; ■ .-: no screw, BC - ;. v dr. r · .- .. not shown madte means co ^ a :: I (^ ο hung go-OLcEc ^ r υ ::; / de ^ Seiltdl 28a verbunderi ias;:; _u i you · runs an ilv t'töj;^;·;'6.R'i 1 tiicto in a rait dom rope toll 2'S, - connected ^ i-ifcs ^ 30' ir ' Ϊ?: ~ ^ -: α * \ ^ 1} ^ / - :: r -.;. Foadon steptt2lljuotor 39 ait einom anchor Ϊ "> Ί <:. Ί'ί ¥ tvU ox:; ir · HIt ^ eI < iÖ ^ er ^ vnJrn iat, volohoc nit a

- 9 - BAD ORIGINAL ■ ζ 09838/1673 _Ä . '_;

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External ring gear of the Hutter 356 combs. The details of such a small stepping motor are known to those skilled in the art, and it is only intended to mention that the motor has a forward running and a reverse winding V / i baw. Wd, which in the following will also be referred to as high-speed and low-speed winding. If a current pulse is applied to such a winding, the armature 39a rotates by one step in advance _; Or EllclwV / ärtarichtims, In the illustrated AuofUkrungsboiepiel, the armature rotates a Iiapula running through the forward winding Wi so that the screw 35 is drawn into the housing 39 by the turning step of the nut 36 and, as a result, the speed control lever 30 in the high-speed direction through the rope part 28b verbchv / enkt v / ird, the other way round on ^ PaIl, an impulse wonn the lUokwia ^ olaufwickV ^,? d runs through, the Vei * "biHy - .: ngoc, i-iiiant 34 _r so that eino your rotary control lever 3C £ U2eora" öte "ugfedor dor the latter - ^ n longitudinal erection verßchv.n> v ·

For the first time: .er * and a second Inpvis sequence with; . to the rotation: - ::. . '. CoIo ^ of the two machines 20 and 22 pro 0: proportional Ir.ipul folr :: Frequencies are pulse train genera tor on 42 * n and 44 voi'geschc "- .; d: ■ each driven by the enteprechonden machine shaft ^ o :: wordf «; -,. liatürlioh can dio impulse sequenceegonoratovQii aucfc driven by -Ml: -v-.jllo.i so in, äie nit einom fos'ton llniorühi: ^ 2 --- ihlvo-h ^. _j . taxs with the respective output wool

OC 983 8/187 3 ^BAD original " ¹ °"

A 354 51 b b - 93 2, Jan. 1967

of the associated machine are preferably produced by each Pulse train generator approx. 40 pulses per revolution of the respective output shaft · In the embodiment shown at ~. , game is dGii pulse train generators 42 and 44 around permanent magnet generators, the sinusoidal output voltages produce whose frequencies are proportional to the. ' .

. . Are the number of revolutions of the associated shafts. Djs-ao sinusoidal Output voltages are applied to pulse shapers 46 and 48 to First and second pulse trains of sharp, recurring pulses. '

.to generate whose Irapulsfolgefrequcmzen are proportional to the "^ rotation number of the main and the controlled machine. 'i The pulses of these pulse sequences are referred to as Hauptimpulso Vergleichaimpulse or 49 or 50 and applied to the inputs \ Syiichronisiereinheit a U, in which should be described below:

. "Synchronization unit

According to the invention, means are provided, and the first type an output signal or a second type of output signal depending on whether

; a) zv; ei main impulses ohiiei ;. , impulse successive, or whether

b) two comparison pulses without an interposed main pulse follow one another immediately

■■ - '·>:.:'. '003838/1673

• ■ '■ ··. "-. · ··; -.- .. BAD ORIGINAL

A 35 451 b

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Jan. 2, 1967

These first and second output signals each appear at one of two output terminals 55 and 56 and are used

the speed
corresponding change / the associated machine in one sense or another , which also brings about a corresponding change in the pulse train frequency of the pulse train 'dos' .

- / ■

In the example shown, the main apulea is controlled a solial teleicent in jev / eils which has two states one of his "two states or leave ea in your boroita -; ·: '., ■': · the state assumed, but the same as the yergleichsiiapuloe Switching the switch to the other state or there. beiaooen. Obv / ohl this switching element of any type

.öein can, if an Eccles-Jordan circuit is preferred, "which has become known as a flip-flop and in Fig. 1 nit 60 ^ b.o.ze'iqhnet was. Such a flip-flop cannot consist of two shown, cross-coupled transistors and some There are few resistances and capacities, so that there is always a Transistor conducts while the other blocks and vice versa. Will discrete signals or pulses to the two ^ inputs of one, Such flip-flops are placed, this depends on the type of pulse switched from one state to the other. As Fig. 1 shows, the flip-flop 60 has, in a known manner, a setting and a reset connection 60s or 6Or as well as output terminals F1 and FT on. A pulse applied to the control connection 60s switches this on

ν. - 12 -

X, ... 0.09838 / 1673 BAD original

Jan. 1967

Flip-flop in its "1""state or leaves it there so that a binary" 1 "signal is available _{at the output terminal pi Q ^ n.} If, on the other hand, a pulse is applied to the reset connection 6Or, it switches the flip-flop (or leaves it on) in the "0" state, 30 that at the output broker F1 a binary ^If O "~ Pagel ~ Signal is available, I> le signals at the output ski of a PT are merely the signals coupled with the output gas signals at the output ski eKBie F1, so that an ^M 0 "signal is available at the output ski a PT stands if daa; :

its "1" -, ".
Pllp-Plop / Ziistand takes up and turns around. As the picture shows, main impulses and Vorgloicha impulses are 49 bav / · 50? ' ■ applied to the setting or reset connection 60s bzu, 6Ov , so that under normal circumstances the Plip-Plop 60 is switched back and forth between its two states according to the abv / öchBolnd Iiapulsender two Iidpul3sequences.

According to a further feature of the invention, logical construction ~ / ;. ':' ·., stones in the synchronization unit U according to the state de β flip-flops 60 controlled so that -. a first or a second

Type of output signal arises in the event that the flip-legs state
Flop / does not change, but keeps it, although a main

or a comparison pulse arrives. In the illustrated output

Leadership boiopiel also deals with these logical building blocks

by two Ünd-SchaltÜngeri 62 and 63 with first inputs 62a and 63a »

via which the Haupti'cipuisd or dio comparison pulses are supplied

BATH ORIGINAL

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so / io with other inputs h 2 b and 63 b »'the output terminals.FI..or * .-. FT are connected. * - clones dor Uiid-Sehaltung.on are 56

Wio bolsannt ortiougon solcho And «S.clialtunsQn Gin starting only if on your two chants

eyacUqint *, Ιη. anderson, V'i> rtoii eraeugt oino. aolclio a; .biiiä: cas «1" signal bo laoigo, when there is a binary.3 - .. / JII "signal at boldon,,. inputs. Ea dio at the first entrance 62a.anlcoKua3ndon.I0pul.se. als Imrao ⁿ 1 "~ Sign, alo botraclit ^ tv; © rdon, kannj; oraougt dio 0nd ~ Sclialtmig 62 pinon Impulfjaair.ihrei 'Aus.

gangalclcniEiOi 55 corresponding to a main impulse- $ 4; n ^% then, wine *.

this is laid out in a zoitpimlct, in 60 is in a "1" state.

So at the output terminal 55 only then oia exitB3jLjpg) nl | _t;

Comparative impulso3 zv; oi main impulse without Zv / ischonschiltiuig eiiies / aui'eini ^ because a comparison impulse before the arrival on dös second: rj ^ a

impulses reset the Plip-Plop würdo *. . ^L \ ir. I i _: o. '■ -χλ

Andororseiis, the AND circuit 63 is only open and lets oinon Verleichsiiapulo mö · -ι through to the first input 63a when the flip-flop 60 is already in its ^rt O ⁿ state, vean this Vereleichoinpüla anltomm-YiV ' ^{:?: T}

BATH ORIGINAL '

009838/1673

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This means that slcleraine at the Ausgan ^ 56 a Ausgangeinpula only appears when two Verblei cha impulse ohna interposition successive einos main pulse immediately · _'f as the dazwischenfolgede main pulse da3 flip-flop in oeinen ^H 1 "state would switch back before the second comparison pulse would arrive · 'r ..

As in the following iet explained in detail, -. First Auügangaimpulse Haschine 22 appear on the Ed ^ ngäkleimae only \ rerm diei controlled slower than the Hauptiaaschine 20 runs while the second Ausgangsirapulse at the Ausgang3klera ie 56 only appear when the rotational speed of the! controlled machine is above that of the Hatipta machine. Vm to control these first and second output pulse pulses, they are applied to the high-speed or the slow winding Wi and Wd of the stepping motor 39 ^ so that it pivots the speed control lever 30 so that the machine 22 runs faster or slower until the Both threat numbers are the same · It is advantageous to apply the two output pulses from output terminals 55 and 56 to power amplifiers 65 and 66,

- ■ to strengthen and shape them in a way that is more appropriate

• *: * ■

wisely be applied to the two windings Wi and Wd. '

The mode of operation of the synchronizer according to Pig. 1 can best be based on the timing diagram or Pig. 2 to 4 explained

m: - ' ^: 009838/1673 ^ ϋ

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Jan. 2, 1967 W -> 5 -

showing the various signals that appear in the circuit under the various conditions. Fig. 2 shows the relationship between main and comparison pulses 49 and 50, -> if the main aochine and controlled machine 20 and 22 have the same speeds. Under these circumstances, the pulse repetition frequency of the main pulses 49 and the comparison pulse 50 are the same, which also applies to the periods Ϊ1 between the successive main pulses and the periods T2 between the comparison pulses. Since each main pulse switches the slip-flop 60 into its "I'-state, the signal voltage at the output terminal F1 has the shape of the curve 68 in FIG. 2, which has a relatively high, binary ¹ M" value during such intervals, 'which follow a main pulse, namely bi3 to the arrival of the next comparison pulse, which switches the flip-flop back to its "0" state. Immediately after the arrival of an iodine comparison pulse 50, the output signal appearing at output terminal F1 has a comparatively low or so-called ⁿ O ⁿ value, until the next main output j3 arrives, which ^{switches the flip-flop back to its "1 n} state. On the other hand, the output pulses available at the output terminal FT form a curve that is a mirror image of curve 68 and was designated 69 : .'.- .: ■; · ■ - ··. 62, - ■ - ■■■. · ·

(Fig. 2). E3 is therefore evident that the and attitude is on its first input 62 ^ applied main pulses during such Lets pass intervals in which the curve suction 68 according to FIG

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'·. BATH ORIGINAL

A 35 451 b

Jan. 2, 1967 Ί? - Ve ~

its "1 ⁿ -Yfert occupies (dashed curve path 5eile dieoeo)? other hand, causes the AND circuit 63 has a see by at its first input 63a inenden VeiJ.eichqiripula during the time intervals by, in which the curve 69 (Pig.2) ooino" Ti - occupies words (dashed parts). Y / enn a main £ 3 on the flip-flop

so long
ankorixat, · <'.- ■. if this is in its "0" state, this main pulse cannot pass the AND circuit 62, but it switches the FMp-Ii ¹ IOp to its "1" state * In this ... case The AND circuit 62 does not quickly open positively in order to allow the little main pulse that switches the flip-flop through, since the switching time of the flip-flop is short but not infinitely short. The same applies if a comparison pulse is applied to da3 flip

'. : ■. . himself .. "· ·,; ■; ■■

Flop come if / is this in its "1" state, "he _r:

then switches the flip-flop to an "O" state, but cannot ''']' pass through the Ühd circuit 63, so that no pulse appears at the output terminal 56. .

Confirms the Fig. 2, that at the same Umdrehungszahlon of main '.

and controlled machine and as a result, the pulse train frequencies of the main pulses 49 and the pre-matched pulses 50 neither do the AND circuit 62 nor the AND circuit 63: '..'. ·.

jEiapuls lets through. Every main impulse finds the AND-aging ■.; '·' Occurs geochlosson and therefore does not come to doron Auagangslclosim © 55I, however, it switches the flip-flop 60 to its "1" state. _:

■;.;. ·. 009838/1673 _BAD original

A 35451 b

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Jan. 2, 1967 jg -VT-

Joder ankoimaendo comparison impulse now finds the flip-flop in its "1" state and consequently the AND situation 63 is blocked, so that no impulse appears at the output circuit 56; however, the comparison pulses switch the flip-flop back to the "0 ^tt " state. The output signals at the output terminals 55 and 56 are straight lines at 70 and 71

indicated in Fig. 2, since no pulse occurs at all. With the same number of revolutions of the two kaochinons there is no correction takes place ..

Pig. FIG. 3 shows the temporal developments in the diapulon when the controlled machine is running faster than the main line. Among these "circumstances, the Iiapulsfolgofrc <iuenz ^of; main pulses 49 -small than the comparative pulse""50, and the period Ϊ1 zv / ischon two consecutive Hauptinpülsen consequently greater than the period T2 zv;. ^ Calibrated pulses een two consecutive Ve The on output signals appearing at the output terminals Fi and FT of the flip-flop, consequently the forms indicated at 68a and 69a, and at flip-flop 60, which is set by a main pulse and returned by a comparison pulse, the main and comparison pulse «». In the course of time, however, av / ei Vorßleioh3impuloo 50a and 50b come immediately one after the other without an in-between

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Corrected Bauptinpuls on flip-flop 60 on «. This is due to the shorter period 52 compared to period 21. FIG. 3 shows that the first comparison pulse 50a then switches the flip-flop 60 to its ^M 0" state and a binary "63b of the aND circuit sets" 1 "signal to the second input. Venn, now the next comparison pulse ankotnnt 50b, then the flip-flop is 60 ismier still in its" 0 "state, and although this comparison pulse remains inactive on the flip-flop, it is passed on by the AND circuit 63 to its output terminal 56. The output signals appearing at this output terminal 56 are shown at 71a in FIG. 3. As shown at 70 in FIG no output signals get to the output 3kieriiao 55. of the AND circuit 62, as long as the controlled lias chine is running faster than the main engine, since there are never two main impulses without -

an intermediate comparison pulse immediately . '.; ■} ■

j->? ^v: · "··. will · ' ^: . νά

; follow each other. Under the. Conditions of Fig. 3 '^: ₍ \ i- the output signals 71a from the output circuit 56 to the low-speed winding Wd applied, so that the stepping motor 39 the speed ·

'■■■■ · - "i: -V --- · · ■' ■■■ · '' ·.

control lever 30 shifted / enlct in slow running direction. Consequently If the state on which FIG. 3 is based does not last long, since the speed of the controlled machine Io decreases for a long time, • until by reducing the pulse repetition frequency of the comparison

lihpuise this * equal to the ira pulse train frequency of the main impulses

f ^: '-; 009838/1673

A 35 451 b- ·. .

Jan. 2, 1967/0 ν> 9 τ

Fig. 4 shows the state when the controlled machine is running slower than the Eauptrras chine and consequently the '. Than that of Iiüpulsfolgefrequenz Kauptiapulse larger the '■} ■; is ".: Vergleichsimpulso Under these circumstances dio And- _Schaltung 63 may bq: lra / arrival of a Vergloichsimpulseo never · be open, but periodic follow two main drivers 49a and I ... 49b without an interposed comparison pulse immediately / on top of one another. The first main pulse 49a switches the flip φ ± op 60 to its V1 "state and causes the output .... / ^ signal at the output terminal F1 (curve 68b) on the binary. / ·· / ■ :; .vüi.l'r.r-.Pe ^ ql jumps. As a result, the next main pulse changes ^ 'ή}

/; | 49 []?.; Nothing in the state of the flip-ITops, so that it is switched from the first ""; ^: ■ ';":; Input 62a of the AND circuit 62 to its output terminal 55.;'.:>;Pi"

■ ^ reach ^ aiin, where it occurs as output signal 70a ₀ The output; signals 7 ^ a 'are then sent to Schnellauf winding Vi of the Sch ^^ t ^,''«··. ^ stellraotois 39 placed, the speed control lever 30 of the ge-r ,! ■. ·· '· ίί

; 'Controlled' machine 22 swiveled in rapid erection. Such ^: 'Corrections are made step by step, one after the other, until

, the speed of the controlled machine was increased so far ... that the pulse repetition frequencies of the main pulses and pre-v * ^ j equal pulses are the same. As can be seen in FIG. 4, the output signal (represented by the curve 69b) also increases. Ausgar ^ clamp FT never a binary "1" value when a . Comparison pulse 50 at the first input 63a of the AND circuit 63.

ι ■

- 20 ^

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Jan. 2, 1 967 room

arrives as long as the controlled machine is slower than the main engine is running. As a result, appears at the Output glue 56 never an output pulse, as is the case with ·. 71 in.! "Ig. 4 is indicated.

The circuit shown in Pig, 1 is therefore extraordinary simple, veil only common digital building blocks are used in it v / earth; nevertheless it works with great reliability and controls the controlled machine extraordinarily at exactly the same speed as the main engine.

Elimination of temporal tremors

Be'i 'using a digital synchronizer like her. has been described above, it can sometimes happen that the individual pulses of the first and second pulse sequences are not exactly the same time intervals * from one another. Obwohl- ie the pulse repetition frequency of the rotational speed · representing pulse train on average be extremely constant 'so can but the individual pulses to their theoretical values slightly forward © The lag * Solahe jitter effects were "particularly happy h® ± the described embodiment on, in which the pulse trains ron one .One of a curl machine old ™ imae hergehenäen movements "angetriebsnaa.

© rgeisgt w & ^ & uUr- Äie llrür5, ⁵ iQl) sv / ell © © Inor 00gg3g / 1673 _BAD

A. 35 451 b

b -, 93

Jan. 2, 1967

This is because the engine performs torsional vibrations of low amplitude, so that its instantaneous rotational speed usually also changes irregularly, although its observed mean speed is completely constant. The causes of such torsional rocker jßgen are, for example, Drehliüpulse, which derive from it- .. ■; stir that the ignition m the individual cylinders take place at different times, furthermore bearings with play or-. ^: As a result the game or not precisely fabricated teeth, and ·: finally not exactly balanced, do not transmit torque evenly example ~ ^-: '■ \: other factors that lead to Ko3.benkippcra, gears, ■ "· π As a result, the angular velocity of the driven Itapuls- ^: (foigegenerators can have relatively high-frequency components- ·, "·";"■ ^: ';; _- ~~. , so that the impulses of the impulses generated by them -. '

'follow not exactly the same distance from each other in terms of time s'eibst if the average speeds of the two machines *.

are constant. . ,. ·; · '^;: ^ Ν

If the generated ¹ ; Differ en impulses from their theoretical time interval, this can cause the digital synchronization device according to the invention to make changes in speed, although this is actually not necessary at _all: would. This is shown graphically in Pig, 6, the left-hand part of which shows the mode of action of the synchronizing function "in the case of theoretically unevenly distributed rinsing, * while in the r @@ left part the impulse © © inen gswiesQiii-trembling effect; ■ ■: '009838/1673' ~ ²² "ι

BATH

Λ 35 451 V

b - 93

Jan. 2, 1967

Z3

exhibit. In the left part of the pig. 6, the pulse trains of the main pulses 49 and the equalization pulses 50 have the same frequencies and the same periods 51 and T2, but they are shifted from one another by a relatively small phase angle φ \. The linlcQ. Part of the pig. 6 shows alaο the Pall, in which the main and controlled machine (Pig. 1) run with constant and equal speed, "so that the output signals.

• at the output terminals P1 and Pl the Porm of the X curves 68c and 69c. As a result, occur at the output terminals fr, 55 and 56 do not correct the number of revolutions Output signals, provided that the output signals 70 and 71

: in the left part of the Pig. 6 can be considered. The system behaves exactly like Pig rait in context. 2 " . ^; . ^: .

However · .: ....- ■

This theoretically possible pail occurs as in the left part

. the pig. 6 dargos-fcellt is not always up in practice. As the right part of this figure shows, it is assumed that a ■: *. special comparison pulse, which theoretically should occur at the point 50c shown in dashed lines, actually occurs earlier as a result of torsional vibrations in the form of the comparison pulse 50d. It is now further assumed that the next comparison pulse 50 β emerges again in its normal temporal position and lags behind the previous main pulse by the phase angle $ 1 · Finally, it is also assumed that

that the next comparison pulse, which is normally at the ',.,% .- ■ ". 0 * 09838/1673 ^ ₂₃ .

A 55 451 b

Jan. 2, 1967 - - 29 "-

Digit 5Of should appear, is again temporally staggered, so that it appears as an impulse 50g, the opposite of the associated one Main pulse leads a short3 time interval. Consequently show the comparison pulses 50d, 50e and 50g in the right part of the Pig. 6 a tremor as they opposite their theoretical positions are offset back and forth. Of course they may and even often are also the main impulses compared to their theoretical time ~ Positions offset to the front and back, but the representation in the right part of the Pig is sufficient. 6 to explain the mentioned phenomenon and its adverse influences.

The Pig. 6 shows that if the comparison pulse 50 * d as a result

a tremor effect3 is shifted so that it occurs before the associated main pulse 49c, it arrives at the Plip-Plop 60 (Fig. 1), as long as this is in its "0" state. "and the output signal 69c its binary ⁿ 1 "value. In addition, the Pcomparison pulse 50d passes through the AND convolution

".63 and appears at the output terminal 56 as output signal 71b, although no rotation correction: required \ t & ro,

. In the same way, the two main pulses 49o and 49.d 'follow immediately without an interposed comparison pulse. "on each other, provided that it is assumed that the VoiJLeichsiiapuiB \ ^: 50e occurs after the associated main pulse 49d. As a result, the main pulse 49d appears in an instant, in

yX . '"■" 009838/1673 " ²⁴ " * "

BATH ORIGINAL

A 35 451 b

b - 93

Jan. 2, 1967

to which the output signal 68c at the output terminal F1 (Fig. 1) assumes a binary "1" -Vfart, so that this main pulse dio AND circuit 62 happens and at its output 3lclemiae as an unerv.oino chi; it appears output ο ignal 70b that leads to an increase in speed. Then follow the next two pre-match pulses 50e and 50g without one in between Hauptirapuls on top of each other, so that the comparator Orapulo

a 50g paired the UHD circuit 63 and as a rotary seal

fronticdri {^ Tdg anlao3ondoo Auagangasignal 71b at the exit aklemiao '56 comes out »

It can thus be seen that there are essentially the same iripula sequence froquen con the main and comparative oiwpuloe and, with a relatively good phase match, torsional vibration with 3-on-3tigo Quiver effects through quickly successive presentations. . ·. the stepping motor 39 (Fig. 1) in zv / ei different threatening directions have to Polge. E3 becomes completely discontinuous geoteuort, and finally the stepped tunnel motor blocked. As a result of this, it is extremely red v / Unachenawort, the effects of such Brehachv / ing-angon and other tremor effects ouch-to switch,

Ce ^ SÜ flor r, rf.l.nilu.-i., i Yurmcn dio von den Zittor ^ ffo '.: Ton horvorgo- -af ^ n ^ u _V ^ chtv \] ^ j «!'. 'Lurch eliminated vrerJnn, d: i2 the ornton IiM ar-: · !! :: Λ-: .-: ;; ■■ ·.! * ._; -. ::: 1 ^ ϊ: α1ο, which precedes at do α ..riond. bo \ ^: ./ ;! o ~ bj'iion Αν; · - ';. ^; l "irniij: .v, 'ulnpj.ül to the Am?. ^ r .- ;: [' α] :! er '-.... .ΐ ^: / | 3 υ; ··'; Κ

0 0 3 -. £ 3/1 6? 2 ■■ - 25 -

BADORiGiNAL

A 35 451 b

b - 33 _Oil

Jan. 2, 1967 * O

be treated as intermediate signals which are fed to a second binary logical S; -. synchronizing unit U ^f (Pig. 5). This second synchronizing unit generates orate and second correction signals boin the arrival of two first intermediate signals or two first intermediate signals.

Aiq most expedient is an embodiment according to FIG. 5, with the Synclironiaiefeinheit U, which is attached to the Pig. Was described ··· 1, is connected upstream of a zvrciten, dariit identiscnen Synclironisiereinlioit 'U. ¹ PI., E .an den Aungangal: ler.Don 55 and 56 appearing output signals serve as intermediate signals and are applied as input signals to the setting or reset connection 60s or 6Or'of the second synchronization unit. This second synchronization unit is vü.der an iaip-Plop 60 with two states and two output terminals P1 and PT on _r

Which, in the end, are connected to inputs 6? b and 65b for supplying the output signals, for example AND circuits 62 'and 63'. The intermediate signals at output terminals 55 and 56 of the "." first synchronization unit TI appear, werdon as input aeignale to the Stell- and Rüclrjtollansehluß 60a ¹ bewz. 6Or ¹ and also to the inputs 62a and 63a ^{1 of the} two TJnd connections. The second synchronizing unit U 'works aioo obeii3O like the toe red boschriöberi3 synhronizing unit TJ, but with the difference that the synchronizing unit TJV

009338/1673 - 26 - _s ; ~:

BATH ORIGINAL

A 35 451 b

Jan 2, 1967 Jf - 36 -

The output pulses or intermediate signals of the first synchronization unit are routed as input signals. Output terminals 55 'and 56' of the second synchronization unit U ¹ supply correction signals to the two power amplifiers 65- 'and 66, which are again connected to the high-speed and low-speed winding Wi and Wd of the stepping motor 39.

Look the Pig. 6 should now be the facility according to Pig. 5 will be explained. Since, as shown in the left half of FIG. 6, no intermediate signals appear at the output terminals 55 and 56 (see curves 70 and 71) when the two speeds of the two machines and the periods of the pulse trains of the main and comparison pulses 49 and 50 are theoretically and practically the same, ^{no input signals are fed to the second synchronization unit U 1} either, so that no correction signals are available at its output terminals 55 'and 56 *. This is shown by the two curves 78 and 79. However, if a trembling effect occurs, as is the case with the right half of the Pig. 6 shows that when the first intermediate signal 71b appears at the output terminal 56, it resets the flip-flop 60V so that the output signal 74 at the output terminal P1 is a binary one instead of its binary "1" value. ⁿ O ^M value assumes. The intermediate signal 71b can consequently not pass through & ± φ AND circuit 63 'and therefore appears

■. - 27 009838/167 * 3

A 35 451 b

* - 93 jQ

Jan 2; 1967 4ö

not even as a correction signal at output terminal 56 '. As a result, the stepping motor 39 is not operated, .c " although the dither effect resulted in an intermediate signal 71b at the output terminal 56.

When the flip-flop3 60 'is reset, the first intermediate signal 71b changes the output signal 74 at the output terminal F1 · in its binary ¹¹ O "value and the output signal 75 at the output terminal F1' to a binary" 1 "value · When the next intermediate signal 70b arrives at the output terminal 55, it can ^{not pass through the AND circuit 62 J} >, so that no correction signal appears at the output terminal 55 '; however, this intermediate signal switches the flip-flop 60' from ^H 0 "- State in the "1" state. As a result, the intermediate signal 70b, which is caused by a rotary oscillation, does not lead to a stepping motor 39 V ^; VC! Y - !. 'V' actuating correction signal. In the same way, the next intermediate signal 71 b (FIG. 6) appearing at the output terminal 56 finds the AND circuit 73 'closed and resets the flip-flop 60' again without it being sent to the output. terminal 56 ¹ appears. At the same speed of the two

- ~ -iiaschinen.20- and 21 do not reach the stepping motor 39 any correction signals (as shown at 78 and 79 in Fig. 6) _t although - torsional vibrations to pulse shifts "

_; ^: ': 1 ·· f "" -. 009838/1673

A 35 451 b

b - 93

2. "Jan. 1967 JM

like this in the right part of the pig. 6 at the Comparative pulse pulses 50d, 50e and 50g were indicated.

The circuit according to Pig. 5 viewed from a different point of view, the second synchronizing unit U * represents a filter which filters out a speed correction signal whenever the speed of the controlled machine is synchronized with the main engine. The left part of the pig. 7 shows the signal conditions when the controlled machine is running faster than the main machine, so that the Zv / ischenalgnale 71 is repeated at the output terminal _; g6 the pig. 5 appear. If these 'repeatable' / intermediate ^{signals have been applied to the synchronization unit U 1} , they repeatedly try to switch the flip-flop 60 ¹ to its "0" state, in which the flip-flop is, however, already - and the AND circuit 63 'is already open. In consequence, the intermediate signals 71a generated by the first synchronization unit U then pass through the second synchronization unit U * and appear as correction signals 79a when the controlled machine is running faster than the main unit. Correction signals 79a _t 'from the output valve 56' to the slow start winding V / d have the consequence that the: 'Sölirittstellootor Y ' pivots the speed control lever 30 in the slow speed pipe and so the speed of the controlled 22 decreases.

0 0 8838/1873 - 29 -

A 35-451 b

b - 93

Jan. 2, 1967

If the speeds of the "two machines are the same, so." The first synchronization unit U no longer ^{emits any r} /./ischen3ignale at its output terminals 55 and 56, so that no correction signals appear ^{at the output terminals 55 * and 56 'of the second synchronization unit TJ 1} _{either e} This state is shown in the middle part of FIG. 7 If the speed of the controlled machine 22 should now decrease further and should be less than that of the main machine (right * ¹ part of FIG. 7), the first synchronizing unit U generates a series of intermediate signals 70a at its output pin 55, and these are used as input signals to terminals 60s ¹ and

V62a ¹ . the second synchronization unit U ¹ placed. However, the first of the intermediate signals 70a ^J finds the flip-flop 60 * in its "0" -Zuotand, so that it cannot pass the AND-state 62 '; it. however, sets the flip-flop 60 'to its "1" state. The output signals 74a and 75a at the output terminals FT ¹ therefore assume a "1" value and an "O ⁿ value, respectively. As a result, the first intermediate signal 70a *, which follows a state of equal speeds, passes the AND circuit 62 '. not up to the output terminal 55 ', but this reaches the subsequent intermediate signal 70a, so that a correction signal 78a is available at the output of the AND circuit 62'

. ail the high-speed winding Wi and leads to a pivoting of the threatening payment lever 30 in the running direction of the child.

3838/1873

-30 -

A 35 451 b

b - 93-2. Jan. 1967

The second synchronizing unit U ¹ consequently makes the entire synchronizing device relatively insensitive to speed deviations which then exist "after the main and comparative sirapulses have indicated that a change from the same to unbounded speeds has taken place.

This period of relative sensitivity to noise lasts only extremely short, however, whereupon the entire device works normally again, but eliminates so-called tremor effects. The circuit according to Pig · 5 can also be supplemented in such a way that two or more synchronizing units U ^{1 are connected} in tandem in order to generate a wider band of insensitivity and to avoid the disadvantages of extremely large time fluctuations between the individual units To eliminate pulses of a pulse train.

. · ■;. "·· .; Elimination of incidence effects. .. /,,.......■

The device according to FIG. 5 is able to synchronize two pulse trains or two speeds in a wide variety of embodiments. In some cases, however, the facility may have a FeKI function, namely if a './,''.▶ "■': • jMain pulse practically coincides with a comparison pulse.: If, for example, the flip-flop 60 Im ⁶¹ O " r-state and a main pulse 49 as well as a comparison sim-., gtils 50 meet at the setting connection 60s and at the reset connection. 6Or practically at the same time, this can have the consequence

= ■ '/ ■' ■ I '. 009838/1673 * " ^3X ~

BADORiGiNAL

A ₅₅₄₅₁ , ^1588333

b - 93

Jan. 2, 1967 2- »

that either the flip-plop retains its state, or in its "1" state is switched, or remains in this, or to its "1" state and immediately back to its v "Aq" state is switched. In the first case, a appears

'Intermediate signal at output terminal 56, and the AND circuit ;;; 6'3, p passes the next comparison pulse; in the second pail ■ 'appears an intermediate signal at the exit ski in 56, and the

.Uridj circuit 62 lets the next main pulse through j in ^{; V} third! "All finally appear at none of the output terminals

... ι- 55 »56 an intermediate signal, and the device lets the next V comparison pulse through. This inconsistent effect can itself; Then occur when the speeds of the two machines are the same, if the two pulse trains are in phase with each other: ··. · '■'. · .. .be;,; '; so that a correction is triggered, although the3 y is not necessary. '■ - ■' - "u ■ * :, -y: ■ ::; .- / ·: ^ y. ■} ■. "VV> - ^ν ί _; ">: ·

J, iii

In order to eliminate this so-called coincidence effect, the entire device can be designed in such a way that it becomes insensitive to main and comparison pulses which essentially arrive at the same time. For this purpose, an anti-coincidence unit A is used, which is described in Pig. 8b is housed in a dashed box, while the circuit according to the Pig. 8a and 8b otherwise those according to Pig. 5 corresponds. The anticoincidence unit A contains -Hittol for delaying the main pulse and the comparison pulse for equal, short delay

ORIGINAL INSPECTED

A 35 451 b

13-93 · ₂

Jan. 2, 1967 3 O

'.' • .time intervals d1,. And only after the delay do they enter - <_ in the normal way as input impulses in the device ...; the Antilcoinzidenz unit also v / ei3t means for iv, "Measurement of blocking time intervals tj, whose beginning with ~ ^: jlem simultaneous arrival einee main * and a comparison - coincides .. ^ pulse Da3 Verzögeinmgozeitinterval ^ T is I '.. Means are also provided, shorter than the blocking time interval ti and e3, in order to prevent the delayed impulses from entering the zone if they arrive within a blocking time interval ti

• V / ϊβ iia. individually on diö Figures 8 show, become an and-. ". Schaltmig 80 via its two inputs 80a and 80b the main · .and the pre-adjustment pulses 49 and 50, respectively, are supplied. The exit - 80c of the AND circuit is one with the trigger input 81a monostable multivibrator 81 connected. Hur then, if a

• ■ 'main pulse arrives at the same time as a comparison pulse,!

The AND circuit 80 generates an output signal for triggering - ^J ; of the multivibrator 81. This then however switches from its.! '• ^ "state to its" 1 "state and then within the short

.. S |> errzeitintQrvallos ti back to its ^w 0 ⁿ state. * '' This peculiarity of a monostable multivibrator with two 'states is well known. An output terminal 81b of the multivibrator is in this Pail a complementary output whose output signal normally assumes an ^η 1 ^η - ¥ οΓ $ 'which

j- ^;; - · ν. fe ·· - ■ 009838/1673 - 33.

A 35 451 b

b - 93

Jan. 2, 1967

^{changes to a "binary n} O" value during the blocking time interval ti; the beginning of the blocking time interval coincides with the trigger time of the coolite vibrator.

The output lclemiae 81b is connected to the inputs 84a and 85a two and ~ circuits 84 and 85 connected. The latter become main pulses at their second inputs 84b and 85b 49 'and comparison pulses 50 are supplied, which come from the Hai ± fr ~ impulses 49 e.g. the comparison pulses 50 after processing have arisen by delay elements 86 and 87, the delay time intervals & -1 of which are equal. The impulses 49 'and 50' are therefore identical to the pulses and 50, however, show a penalty compared to these on.

\\ If the multivibrator is not triggered, a binary ^w 1 ^w ~ signal _f is present at its output scleramo 81b and the two AND circuits 84 and 85 are both open. Under these circumstances, the delayed pulses 49 * and 50 * pass the undr.

:. <. ι · ■. · ■■

Circuits 84 and 85, so that first and second input pulse trains for synchronizing unit U arise at their outputs; the mode of operation of the following device iaV is the same as in the embodiment described above , '■ ·

A 35 451 b

b.- 93

Jan. 2, 1967 Jf

If a certain main pulse 49 now arrives essentially at the same time as a comparison pulse 50, ie if "the two pulses are not separated from one another by a time interval that is greater than the resolution time of the AND circuit, the multivibrator is triggered and at the output terminal 81b ^{If a binary M} O "signal is maintained during the blocking time interval ti, the same main and comparison pulses are converted into delayed main and pre-comparison pulses .49 'and 50', which are delayed at inputs 84b and 85b ν by the delay 3 int interval cL1 arrive, ie ..V>. i.e. TOr the end of the blocking time interval \ t1. As a result, '· ^..: can these two delayed pulses, the AND circuits M: consequently 84.und 85 does not pass and do not reach ■ · "■ ■ · ·. ·'."'"As the input signals to the synchronizing unit U. Actual-

• "loaned form the input pulses for the synchronizing ^,. '

unit; U a fifth and sixth pulse train consisting of "'■

• · 5f-r · ν ■,.:. ■■■■ · ■ ^; ': ^ · ■: ■■

. Pulses ^ d of the third and fourth pulse train 49 ^f or 50 'together-j ..

, which pulses but must occur outside the SperrzeitV .. "infervä ^ les ti mensetzen The Antikoinzedenz unit Ä '-._ leads, so to insensitivity of the invention' ■ ■ device with respect to coincident main and comparison.:.

impulses. As a result, this facility does not have the

Disadvantage of a faulty control, but the 'inventive features do not bring a new disadvantage

009838/1673 - ■ · -.35 -

A 35 451 b

b - 93

Jan 2, 1967 36

the
practical, as there is a short block in relation to correction signals

is negligible.

The described anticoincedence unit is also in the at the same time filed application by the same applicant (official file number:) described and claimed.

Logical phase adjustment unit

After the numbers of revolutions of the controlled machine 22 and the main machine 20 have been matched to one another, it is furthermore desirable to control both machines so that their output shafts rotate with a fixed phase position to one another. If the output shaft of the controlled machine moves behind or forwards in relation to that of the main machine, the throttle valve of the controlled machine can be opened or closed slightly and briefly in order to briefly accelerate or decelerate the controlled machine until the '.'. '. 'is reached ir phase adjustment. This is achieved according to the invention by means of an extremely simple Phasenanpasseinheit P (Pig.8a) that works exclusively with digital signals and vorteilhafterweiae with the inventive synchronizing device is coupled. to a first and a second import

. to generate a pulse train of discrete pulses whose relative phase

i. 009838/1673 *

- 36 -

A 35 451 b

Jan. 2, 1967 3f

If a measure for the angle between the rotating shafts of the "two machines is, means are provided which each generate a reference pulse when the output shaft of the main machine passes through a predetermined angular position; corresponding means are used to generate a measuring pulse each time the output shaft of the controlled Machine passes through a predetermined angular position. The two angular positions can be identical, but it is not absolutely necessary. As FIG drive shaft of the main engine mounted disc is supported on an associated coil core of the induction coil 92 vorbeiläuft.In the same manner, a measuring pulse in einor ¹

Induction coil 94 is always induced when a single pin 95 * is controlled by one on the output shaft of the Machine attached disc is carried, on an associated fixed bobbin 96 passes. The ones in the induction coils

90 and 94 induced pulses are common amplifiers or pulse formers 98 and 99 supplied so that reference pulses 100 and measuring pulses 101 can be picked up at the outputs of these pulse shapers (FIG. 8a). The relative phasing of these Impulse is again a measure of the phase angle »Between the output shafts of the two machines. '

In the case of a phase deviation, agents according to the invention are used

A 35.451 b

b - 93

Jan. 2, 1967

for automatic phase adjustment, a two-valued control waveform is generated; this one points first and second fourths during approximately the first and second halves of the period between two, respectively successive reference pulses of the first pulse train 100 on. In the embodiment described exist the means from an ioonostable multivibrator 104, do33on Trigger input 104a is supplied with reference pulses 100; the time interval of this multivibrator is half that as large as - the period between two successive reference pulses, provided that the main engine 20 is running at normal speed. For example, at a normal number of revolutions of the main engine 20 of 3000 revolutions per minute the time that the output shaft needs for - one revolution, 20 milliseconds. As a result, the period of the pulse train is the reference 3 pulses 100 also 20 Hilliselainden, and that The time interval of the multivibrator 104 is then expediently 10 milliseconds by appropriate selection of its RC circuit.

In Pig. 9 are the reference pulses 100 with a period T dargoetelll. The control shaft train at the output 104b of the multivibrator »has the shape of Pig. 9 Bozuga pulse train 106 shown; dioae holds a binary ^B 1 ⁿ word immediately after each reference pulse and during the time interval T / 2, whereupon the

009838/1673 - - 38 -_

A 35 451 b

b - 93

2 "'Jan. 1967 Jd

Reference pulse train again assumes the binary "O" value. It can be sent from output 104b through an inverter unit to produce a complementary waveform; however, it is preferred to achieve this simply by using the opposite output 104c of the multivibrator 104 at which the reference pulse train 107 (Pig. 9) complementary to the reference pulse train 106 is available.

In order to generate a first output signal as a result of a measuring pulse which occurs as long as the reference pulse sequence 106 assumes a first of its two possible values, the output 104b is connected to an input 110a of an AND circuit 110 - '^ ^i; > bound, while the measuring pulses 101 are at the second input 110b of this AND circuit. In order to also generate a second output signal corresponding to a measuring pulse which then occurs when the reference pulse train 106 assumes the second of its two possible values, the complementary reference pulse train 107 is applied from the output 104c to an input 111a of a further AND circuit 111, to its second input 111b , the measuring pulses 101 also lie. The output terminals 110c and 111c of the two AND circuits are connected to power amplifiers 112 and 113, the outputs of which in turn are connected to the high-speed winding Wi and the low-speed winding Wd of the .Schrittstoll-. motorr 39 are connected.

009838/1673

A 35 451 b

b - 93

Jan. 2, 1967 IjQ

The mode of operation of this simple phase adjustment unit P is based on the Pig. 9, the left-hand part of which shows an ITaeheilung of the measurement pulses 101 compared to the reference pulses 100 by the phase angle $ 2 . At the moment in which a measuring pulse 101 is applied to the inputs 110b and 1.11b of the AND circuits 110 and 111, the complementary reference pulse sequence 107 at the output 104b assumes the binary "O" value and the AND circuit is 111 therefore blocked, so that the power amplifier 113 and thus the low-speed winding Vd no pulse can be fed. However, at the times when the measuring pulses 101 are at the input 110b, the reference pulse train 106 available at the output 104b of the multivibrator 104 assumes its binary ⁿ 1 ⁿ - ¥ ert, so that these pulses pass the AND circuit 110 and output pulses 115 generate, which are placed via the power amplifier .112 to the Schnellauf winding Wi. Whenever the output shaft of the controlled machine lags behind that of the main machine, the first output pulses 115 are periodically applied to the high-speed winding Wi, so that the stepping motor 39 swivels the speed control lever 30 in the direction of high speed.

The right part of the pig. 9 shows the mode of operation of the phase ¹ 'adjustment unit for the Pail that the output shaft of the control

opposite to · . ■ -

th machine / that of the main machine leads ₃ and consequently

009838/1673 . - 40 -

A 35 451 b

b - 93

Jan. 2, 1967

whose phase shift is positive between the measuring pulses 101 and the reference pulses 100, denoted by // 3

takes the reference pulse train 107. Under these circumstances / when each measuring pulse 101 arrives, always its binary "1" value, so that these pulses pass through the AND circuit 111 and cause output pulse © 1.16, which are applied via the power amplifier 113 to the slow-speed winding Wd de3 stepper motor . On the other hand, the reference pulse train 106 at the output 104b always assumes its binary ^w O ⁿ ~ value when a measuring pulse 101 / at the input 110b of the AND circuit 1: 1.0 arrives, so that these pulses do not pass this AND circuit and as a result ~ which cannot reach the power amplifier 112.

The monostable multivibrator 104 thus forms a “period divider” which the time interval between two reference pulses 100 /. a:, dividing first and second half. In other words

- ~ ^{: it} emits signals for two time intervals during which

^ Kv ·. :: \ ■ β "■ '

the output shaft of the main engine angle of rotation between 0 'uii, d

; ^; '^; / + 180 °; or. 0 ° and -180 ° - based on the aforementioned predetermined '']

ν; · Η · ι '· · ■ "■■.' '·; ■■; ■}.

- Rotary / angular position - runs through. The AND circuit 110 represents · .., ' ^ v · ;. "■ '· .. ■■■ · *;' [

-eiso is a liacheil gate circuit, the pulses only then '·' ■ ', _ Bozugs-

• lets through if the '.' .. impulses are close to the measuring impulses

, ie occur within a time interval that corresponds to a 180 ° -Winlcelbereich, which sioh to the

009838/1673 origin a *, s' -Tcr 4! -.;. ■.;. · ;.

■ ^{i! ;} ■ '■■ ·. ■; / · ■

A 35 45i "b

b - 93

Jan. 2, 1 967

of a reference pulse3. The AND circuit 111 represents in turn represents a leading gate circuit, which the second, 'Only then will the impulses to be applied to the slow movement lets through if the measuring pulses occur within a time interval corresponding to a 180 ° angle of rotation range corresponding to the Occurrence of a reference pulse precedes · The first and Second output pulses appear at the output terminals 110c and 111c and thus represent correction signals that are used for Change of the relative phase position of the two output shafts used in one sense or another to describe a perfect ^ Phase adjustment up to phase synchronism results to have. "

ρ

009838/1673

Claims (1)

A 35 451 h b - 137 Jan. 26, 1968 Patent claims: 1. Device for frequency-wise adaptation of a second periodic to a first periodic pulse train, characterized by a first of the two pulse trains (491 56) controlled control pulse generator (6o, 62) at its output (55) a control pulse can always be tapped if there is no pulse between two pulses of the first pulse train (49) second pulse train (5o) is, and by a second, also fteuerimpulsgeber (6o, 63) controlled by both pulse trains, at the output (56) of which a control pulse is always then can be tapped when there is no pulse of the first pulse train (49) between two pulses of the second pulse train (5o), see above like by one of the control pulses of the two control pulse generators in the direction of an increase or decrease in the pulse repetition frequency Adjusting device ('Wi, Wd, 34,3o, 22) for the second pulse train (5o). 2. Device according to claim 1, characterized in that the adjusting device is a stepping device. 3. Device according to claim 1 or 2, for adapting the number of revolutions two prime movers, characterized in that a pulse train generator (42 or 44) is coupled to each drive machine (2o, 22), the pulse train frequency of which 009838/1673 BATH ORIGINAL A 35 451 h * - 137 Hi Jan. 26, 1968 is proportional to the respective number of revolutions, and that the Adjusting device is a control device for the number of revolutions of the second drive machine (22). 4. Device according to one of the preceding claims, characterized in that that the two control pulse generators (6o, 62; 6o, 63) have a common bistable controlled by the two pulse trains Have switching element (6o) with two outputs (F1, FT), that from the pulses of the first pulse train into a first and from the pulses of the second pulse train into another Zuitand is switchable, and that at a first and ~ element (62) the first pulse train (49) and the .dieser associated output (F1) of the bistable switching element (6o) is while at a second AND element (63) the second pulse train (5o) and the output (Fl) of the bistable assigned to it Switching element is ·. ... ; 5. Device according to claim 4, characterized in that the bistable switching element is a flip-flop (6o) and the pulses are electrical pulses. 6. Device according to claim 4 or 5ι, characterized in that that the AND elements (62,63) are logical AND circuits. 7. Device according to one or more of the preceding claims, characterized in that the adjusting device has a . Jan. 26, 63 '. "" ^ - two oppositely wound windings (Wi ₁ Wd) having servomotor (39) onv / eist. d. Device according to one or more of Claims 5 to 7, characterized in that between the AND members (62, 63; 62 ', 63') and the actuating device there is in each case a power amplifier (65,66) is arranged. 9 device according to one or more of the preceding claims, characterized in that the3 between dom first and second Control pulse generator (6o, 62; 6o, 63) and the adjusting device a further pair of control pulse generators (6o ·, 62 '; 6o', 63 *) are arranged is, which in its effect with regard to the control pulses of the first two control pulse generators of the effect of correspond to the latter with regard to the two pulse trains. Io. Device according to Claim 9 »characterized in that the third and fourth control pulse generators (6ο ¹ , 62 ·; 6ο ·, 63 ') have a common, second, bistable switching element (x>') that can be switched from the control pulses of the first control pulse generator to a first state and from the control pulses of the second control pulse generator to a second state, and that the control pulses of the first control pulse generator are applied to a first AND element (62) as well as the output (P1 ¹ ) assigned to this of the bistable switching element (6ο ¹ ) 000830/1673 A 35 451 b b - 137 January 26, 1968 lies, while the control pulses are applied to a second AND element (63 *) of the second control pulse generator and the output (Ft ') of the bistable switching element assigned to it. y - 11. Device according to claim lo, characterized in that the second bistable switching element (6ο ¹ ) is a flip-flop. s "■■ ■ - ■ 12. Device according to claim Io or 11, characterized in that that the third and fourth AND elements (62 ', 63') are logical AND circuits are. 13. Device according to one or more of the preceding claims, characterized by an input AND element (öo) for the first and second pulse train (49.5o) to which a timer element (81) controlled by the output pulses of the input and element / _; is connected downstream, which measures a time interval ti beginning with the occurrence of such an output pulse, by pulse generators (86,87) controlled by the first or second pulse train, whose output pulses (49 * »5o ·) compared to the impulses of the respective pulse train (49.5o) are delayed by a time interval d1, which is shorter than the time interval} ti, . and by two output pulse generators (84, 85), one of which from the first pulse generator (86) and the timer element (81) and the second from the second pulse generator (87) and the Timer element is controllable and its outputs, which are blocked during the time intervals ti, with the inputs of the .009630 / 1073 -4 A 35 45ä 1
. b - 137
28/1/68 two control pulse generators (6o, 62; 6o, 63) are connected. " 14. Device according to claim 13t, characterized in that the timer element is a square-wave pulse generator £ 81) ipt, at whose output (81b) a normally pre- the existing signal v / disappears during the time interval ti, and that the output pulse generator / fir; l] tad limbs (84.85) oind. 15. Device according to Anopruch 13 or 14 _f characterized in that the pulse generators (86, 87) are delay elements for the first and second pulse train (49 _t 5o) / .. '■' .: 16. A device according to claim 14 or 15> labeled in characterized ^ ^': characterized in that the square-wave pulse generator (81) from ^a: output (8oC) of the input AND gate (80) triggered monostable multivibrator is: 17. Device according to one or more of the claims 13 - 16, thereby known ze rejects, ¹ that the AND-GÜedef (8o, 84,85) are logical AND-circuits:. . ^: , 00983 8/1673