EP1037194A1 - Procédé pour engendrer un bruit de commutation de relais électromécanique - Google Patents
Procédé pour engendrer un bruit de commutation de relais électromécanique Download PDFInfo
- Publication number
- EP1037194A1 EP1037194A1 EP00400727A EP00400727A EP1037194A1 EP 1037194 A1 EP1037194 A1 EP 1037194A1 EP 00400727 A EP00400727 A EP 00400727A EP 00400727 A EP00400727 A EP 00400727A EP 1037194 A1 EP1037194 A1 EP 1037194A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frequency
- signals
- transducer
- relay
- noise
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 14
- 230000033764 rhythmic process Effects 0.000 claims abstract description 8
- 230000005284 excitation Effects 0.000 claims description 10
- 230000003068 static effect Effects 0.000 description 4
- XXQCMVYBAALAJK-UHFFFAOYSA-N ethyl n-[4-[benzyl(2-phenylethyl)amino]-2-(2-phenylethyl)-1h-imidazo[4,5-c]pyridin-6-yl]carbamate Chemical compound N=1C=2C(N(CCC=3C=CC=CC=3)CC=3C=CC=CC=3)=NC(NC(=O)OCC)=CC=2NC=1CCC1=CC=CC=C1 XXQCMVYBAALAJK-UHFFFAOYSA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/18—Selecting circuits
- G10H1/26—Selecting circuits for automatically producing a series of tones
- G10H1/30—Selecting circuits for automatically producing a series of tones to reiteratively sound two tones
Definitions
- a relay for cyclically supplying the direction change lights.
- electromechanical relays consisting of a coil magnetic control of a movable contact blade.
- the driver which activates the control unit, then perceives, in return, the beat noise, or switching, relay and can thus see the effectiveness of its action and also check that an automatic shutdown system of the central unit, controlled by the rotation of the steering wheel, does not act prematurely.
- the present invention aims to provide an economical solution for produce electromechanical relay noise when a static relay switches.
- the invention relates to a method for generating noise electromechanical relay switching on board a vehicle, characterized by the fact that an electro-acoustic transducer is excited using a excitation circuit arranged to generate a plurality of signals to various frequencies and the excitation circuit is controlled for generate the various signals one after the other and at a rhythm high enough that each frequency returned by the transducer is interrupted before it becomes a note.
- each signal is interrupted before this perception time has elapsed.
- the device shown for sound reproduction of a relay noise electromechanical is used here to functionally complete a power plant flashing light with static relay of a motor vehicle, to simulate the beat noise of an electromagnetic or mechanical relay when the control unit works.
- the device comprises a microcontroller 1, shown limited by a dashed line frame, controlling a 4 buzzer through a series 2 resistor connected to the base of an emitter NPN 3 transistor at the mass.
- Buzzer 4 is connected between a 12-volt supply and the collector of transistor 3, the buzzer 4 being, in this example, of the type piezo (capacitive).
- a resistor 5 is here provided, in parallel on the buzzer 4, to reduce the impedance it presents and thus be able to order at a sufficient rate, by charging / discharging its capacity.
- the microcontroller 1 supplied with clock signals by a base of time 10, has an input link 11 by which it is controlled by the control unit, and therefore by the user, to simulate the relay noise.
- he includes a program memory 12, activated by the link 11, comprising a sequence of signal selection orders at various successive frequencies or tones in a memory set 13 library containing digital signals representing a plurality such frequencies, here at respective fundamental frequencies of 1, 2, 3 and 4 kHz, the signals representing them being respectively stored in four areas 131, 132, 133, 134 of memory 13.
- a program memory 12 activated by the link 11, comprising a sequence of signal selection orders at various successive frequencies or tones in a memory set 13 library containing digital signals representing a plurality such frequencies, here at respective fundamental frequencies of 1, 2, 3 and 4 kHz, the signals representing them being respectively stored in four areas 131, 132, 133, 134 of memory 13.
- the two pluralities can differ from each other by order according to which the frequency signals are exploited and also by their size in number of frequencies. So the "click” arming noise can be reproduced by means of five frequencies, while the noise of disarming or "clack” release requires seven frequencies. We can also use the same frequency several times.
- the memory 13 contains, for each tone or frequency, a digital pattern (fig. 2) formed of a succession of identical blocks of bits in 1, separate blocks two by two by a bit space at 0.
- This space includes for example as many bits as a block, if we want to produce a frequency signal fundamental of maximum power, i.e. without parasitic frequency other than the odd harmonics due to the impulse form of signals.
- FIG. 2 two sequences or patterns 24, 21 of bit blocks at two different frequencies have been shown, as a function of time t on the abscissa.
- the sequence 24 corresponds to blocks of one bit in 1 per period of two bits, providing 4 kHz
- the sequence 21 corresponds to blocks of four bits in 1 per period of eight bits, thus providing a signal at frequency 4 times lower, at 1 kHz, when performing bit-by-bit reading at a fixed rate.
- the software 12 selects the desired zone 131 to 134 in library 13 and successively reads each of the bits. This reading takes place at a rate twice the highest frequency to be returned library 13, that is to say here at 8 kHz. Given the duration of two patterns milliseconds, so each one has 16 bits here.
- FIG. 2 it is the area 134 of pattern 24 (4 kHz) which is first addressed, for the duration T of 2 ms.
- a demultiplexer or address decoder 135, read by line-by-line addressing of the memory 13, is likewise commanded to scan the zone 131 to 134 considered.
- the multiplexer 14 is integrated into the latter, 135, and the program memory 12 addresses successively through the addressing circuit 135, at 8 kHz, the successive lines of zone 131 to 134 wanted.
- a data bus receives each bit read to store it temporarily in a rocker not shown commanding the base of the transistor 3. However, it can be expected that the memory 13 controls directly transistor 3, by a permanent link reserved for this effect.
- the memory 12 programs a circuit 136 command circuit 135 to select zone 131 to 134 desired and for him to read it to the rhythm of an 8 kHz signal that he receives from time base 10.
- Circuit 136 temporarily stores memory instructions 12 and thus replaces the program in memory 12 for executing a routine task, for cyclic reading of a specific area 131 to 134 relating to a tone.
- Circuit 136 receives here four clock signals, from time base 10, at 2, 4, 6 and 8 kHz and selects the latter, using an internal four-way multiplexer 137, to advance a line address counter (not shown) controlling the addressing circuit 135.
- the memory assembly 13 thus operates independently, at the like a coprocessor, during period T of the control rhythm buzzer 4 excitation circuits, which avoids overloading the general purpose circuits (computing unit and bus) of the microprocessor 1.
- the block 12 for executing instructions at the rhythm T is used, during each machine cycle representing around ten microseconds, to program a generator frequency programmable frequency 13 and then release the execution block 12 until a new programming of the frequency generator 13 by this one.
- the blocks of the excitation bit pattern do not include each one only bit and there is only one pattern.
- program memory 12 selects a scan frequency read from memory 13, frequency of scan which was fixed, at 8 kHz, in the previous example.
- the choice of scanning frequency is memorized in circuit 136 to activate the addressing circuit in read 135 at the rate of the output of the base time 10 which is suitable.
- To produce a frequency of determined value at buzzer 4 read the unique pattern at double frequency, in order to to transmit to each buzzer 4, a bit in 1 (first half period) then a bit in 0 (second half period).
- Multiplexer 137 is then controlled by addressing its inputs to select the signal suitable clock. For example, the choice of 2 kHz for the frequency adjustable scan will produce a pair of 1-bit readings in 1 and the next bit at 0 every millisecond, so produce a signal acoustic at 1 kHz at the buzzer 4.
- any bit pattern excitation in memory 13 was replaced functionally by a switch or multiplexer like 137 connecting, for the duration T, a clock output (here among four) from time base 10 to base of transistor 3.
- This clock output is chosen from four which are, this times, directly those at the various frequencies likely to be selected, i.e. at 1, 2, 3 and 4 kHz.
- the spatial pattern in memory 13 of the previous examples that was converted, by rhythm reading known, in a temporal pattern, is thus here directly replaced by a time pattern provided by time base 10.
- zone 131 comprising signals at 1 kHz.
- This completion of period T is detected by a armed delay at the start of period T, or by the arrival of the line addressing counter mentioned above at an end of zone address 131-134, which causes an interruption of the microcontroller 1.
- the various frequencies are chosen in an order such as their sequencing simulates at best a beat noise, or clicks successive, an electromechanical relay.
- Time limitation T buzzer 4 excitation by each frequency to a maximum value determined prevents each frequency from becoming a noticeable note by the human ear.
- a static relay can also be a element other than a transistor in the strict sense and can for example be a thyristor.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
Description
- la figure 1 est un schéma par blocs du dispositif de restitution, et
- la figure 2 représente les commandes d'un buzzer de restitution sonore du bruit de relais.
Claims (9)
- Procédé pour engendrer un bruit de commutation de relais électromécanique à bord d'un véhicule, caractérisé par le fait qu'on excite un transducteur électro-acoustique (4) à l'aide d'un circuit d'excitation (1) agencé pour engendrer une pluralité de signaux à diverses fréquences (131-134) et on commande le circuit d'excitation (1) pour engendrer les divers signaux l'un après l'autre et à un rythme (T) suffisamment élevé pour que chaque fréquence restituée par le transducteur (4) soit interrompue avant qu'elle ne devienne une note.
- Procédé selon la revendication 1, dans lequel on utilise un microcontrôleur (1) pour exciter le transducteur (4).
- Procédé selon l'une des revendications 1 et 2, dans lequel on excite le transducteur (4) par des signaux impulsionnels binaires.
- Procédé selon l'une des revendications 2 et 3, dans lequel, le microcontrôleur (1) comportant un bloc (12) d'exécution d'instructions commandant un générateur de signaux à fréquence programmable (13), on utilise le bloc d'exécution d'instructions (12) au dit rythme (T), pour programmer (136) une fréquence du générateur (13), et on libère ensuite le bloc d'exécution (12) jusqu'à une nouvelle programmation du générateur de signaux de fréquence (13) par celui-ci.
- Procédé selon la revendication 4, dans lequel on arme une temporisation à chaque programmation de fréquence et on déprogramme la fréquence lorsque la temporisation arrive à échéance.
- Procédé selon l'une des revendications 2 à 5, dans lequel on commande le transducteur (4) par une base de temps (10) dont on sélectionne (137) une sortie parmi plusieurs à diverses fréquences.
- Procédé selon la revendication 6, dans lequel la sortie sélectionnée sert à lire, à vitesse réglable, un motif unique de bits d'excitation en mémoire (13).
- Procédé selon l'une des revendications 1 à 7, dans lequel on engendre deux bruits, d'armement et de désarmement, de relais par sélection d'une pluralité de signaux à diverses fréquences (131-134) parmi deux pluralités de longueurs différentes.
- Procédé selon l'une des revendications 1 à 8, dans lequel le rythme de commande du circuit d'excitation (1) correspond à une période de sensiblement deux millisecondes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9903209 | 1999-03-16 | ||
| FR9903209A FR2791165B1 (fr) | 1999-03-16 | 1999-03-16 | Procede pour engendrer un bruit de commutation de relais electromecanique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1037194A1 true EP1037194A1 (fr) | 2000-09-20 |
Family
ID=9543227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00400727A Withdrawn EP1037194A1 (fr) | 1999-03-16 | 2000-03-16 | Procédé pour engendrer un bruit de commutation de relais électromécanique |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1037194A1 (fr) |
| FR (1) | FR2791165B1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192930A (en) * | 1991-12-26 | 1993-03-09 | Brueggemann Douglas C | F.E.T. flasher |
| US5633625A (en) * | 1995-03-20 | 1997-05-27 | Saturn Electronics & Engineering, Inc. | Electronic chime module and method |
| US5808545A (en) * | 1994-05-20 | 1998-09-15 | Brueggemann; Douglas C. | Integrated vehicular electronic signalling system |
-
1999
- 1999-03-16 FR FR9903209A patent/FR2791165B1/fr not_active Expired - Fee Related
-
2000
- 2000-03-16 EP EP00400727A patent/EP1037194A1/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192930A (en) * | 1991-12-26 | 1993-03-09 | Brueggemann Douglas C | F.E.T. flasher |
| US5808545A (en) * | 1994-05-20 | 1998-09-15 | Brueggemann; Douglas C. | Integrated vehicular electronic signalling system |
| US5633625A (en) * | 1995-03-20 | 1997-05-27 | Saturn Electronics & Engineering, Inc. | Electronic chime module and method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2791165A1 (fr) | 2000-09-22 |
| FR2791165B1 (fr) | 2001-05-04 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: JOHNSON CONTROLS AUTOMOTIVE ELECTRONICS |
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