WO2003011482A1 - Avertisseur sonore a grandeur de fonctionnement accordable de façon adaptative - Google Patents

Avertisseur sonore a grandeur de fonctionnement accordable de façon adaptative Download PDF

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Publication number
WO2003011482A1
WO2003011482A1 PCT/DE2002/002483 DE0202483W WO03011482A1 WO 2003011482 A1 WO2003011482 A1 WO 2003011482A1 DE 0202483 W DE0202483 W DE 0202483W WO 03011482 A1 WO03011482 A1 WO 03011482A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
excitation current
signal horn
voltage
horn
Prior art date
Application number
PCT/DE2002/002483
Other languages
German (de)
English (en)
Inventor
Antonio Pérez BALLALTAS
Jacinto Martin Acero
Fernando Nozal Martin
Matias J. Garrido Gonzalez
Juan M. Meneses Chaus
César RODRIGUEZ LACRUZ
César SANZ ALVARO
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP02758078A priority Critical patent/EP1414590B1/fr
Priority to DE50205530T priority patent/DE50205530D1/de
Priority to JP2003516705A priority patent/JP4076161B2/ja
Publication of WO2003011482A1 publication Critical patent/WO2003011482A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
    • B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
    • B06B1/0253—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken directly from the generator circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/52—Electrodynamic transducer
    • B06B2201/53—Electrodynamic transducer with vibrating magnet or coil

Definitions

  • the present invention relates to a horn with a control loop for adaptively tuning an operating variable of the signaling horn to a predefinable setpoint value, with a controlled from a pulse generator circuit with respect to its pulse frequency and / or its pulse-duty factor controls a current flowing through the horn excitation current "and wherein the control circuit Has circuit means which detect an operating variable of the signal horn and depending on it control the pulse generator so that the operating variable of the signal horn assumes the target value.
  • Such a signal horn with a control loop for adaptive tuning of its resonance frequency is known from US 5,414,406.
  • the actual switching frequency of the signal horn is measured by means of an acoustic sound sensor (microphone) and the phase offset between this measured actual signal and the pulse sequence controlling the signal horn and generated by a pulse generator is determined.
  • the pulse frequency of the pulse generator is adjusted so that the phase shift is minimal. With this activation of the signal horn, it reaches its optimal working frequency, namely its Resonanzrfrequenz.
  • the detection of the actual operating variable of the signal horn by means of an acoustic sound sensor is technically relatively complex.
  • the function of an acoustic sound sensor is very much dependent on temperature and aging influences; that is, the sound frequency of the signal horn measured by the sound sensor is falsified due to temperature and aging influences. The control loop will then no longer be able to correctly tune the signal horn to its resonance frequency.
  • the invention is therefore based on the object of specifying a signal horn of the type mentioned at the outset which can be implemented as simply as possible in terms of production technology and in which external influences have as little effect on the operating behavior.
  • circuit means are present which detect one or more characteristic quantities of the excitation current flowing through the signal horn and in that further circuit means are present which result from the difference between the excitation current (s) derived characteristic variable (s) and one or more setpoints provide one or more manipulated variables for a pulse generator which controls a switch which controls the excitation current with respect to its pulse frequency and / or its pulse duty cycle. Because the actual operating variable of the signal horn is derived from the excitation current in the control loop, a noise sensor susceptible to failure, which measures the sound frequency of the signal horn, can be dispensed with.
  • the resonance frequency or a variable proportional to it - preferably the excitation current - for the control process is expedient to use the resonance frequency or a variable proportional to it - preferably the excitation current - for the control process as the operating variable of the horn.
  • the characteristic variable (s) of the excitation current is (are) preferably the relative phase position of harmonic spectral components of the excitation current and / or the spectral distribution of the excitation current. These characteristic quantities of the excitation current can be detected by a frequency analyzer.
  • An advantageous arrangement is that there is a current-voltage converter that converts the excitation current into a voltage, that there is an analog-to-digital converter that digitizes the voltage, and that there is a digital frequency analyzer that a or several characteristic quantities of the digitized voltage curve derived from the excitation current are determined.
  • a signal processor is expediently used which compares the characteristic quantity (s) of the excitation current or the voltage derived therefrom ascertained by the frequency analyzer with one or more nominal values and from the deviations between the characteristic quantity (s) ) and the setpoint (s) provides one or more manipulated variables for the pulse generator.
  • the signal processor can carry out the setpoint comparison at periodically repeating time intervals.
  • One or more setpoints which correspond to a fixed operating variable of the signal horn, can be stored, or one or more changeable setpoints can be supplied to the signal processor.
  • the signal horn can be varied in its sound.
  • FIG. 1 shows a block diagram of a control circuit for adaptively tuning an operating variable of a signal horn, the control circuit being set to a fixed resonance frequency of the signal horn, and
  • FIG. 2 shows a control circuit for adaptively adjusting an operating variable of a signal horn, the sound of the signal horn being variable.
  • FIG. 1 shows a block diagram of a control circuit for adaptively tuning an operating variable of a signal horn.
  • the signal horn 1 has a structure as described, for example, in US Pat. No. 5,414,406, of which only one excitation coil 2 is shown in FIG. 1, which causes a membrane of the signal horn to vibrate when current flows through it.
  • the excitation coil 2 of the signal horn 1 is fed by an energy source 3, for example a vehicle battery.
  • an energy source 3 for example a vehicle battery.
  • a switch 4 In the supply line between the energy source 3 and the excitation coil 2 there is a switch 4, the actuation of which activates the signal horn.
  • the current I flowing through the excitation coil 2 is controlled by an electrically controllable switch 5 inserted into the circuit of the excitation coil 2.
  • the control signal for the electrically controllable switch 5 comes from a pulse generator 6 which emits a pulse train with a specific pulse repetition frequency and with a specific pulse duty cycle.
  • a driver 7 connected between the pulse generator 6 and the electrically controllable switch 5 brings the pulse sequence emitted by the pulse generator 6 to a suitable one for the electrically controllable switch 5
  • the electrically controllable switch 5 is preferably a semiconductor switch, e.g. a field effect transistor.
  • the electrically controllable switch 5 is therefore switched on and off in accordance with the pulse sequence generated by the pulse generator 6, and as a result the excitation current I flowing through the excitation coil 2 takes the form of a pulse sequence with the pulse frequency and pulse duty cycle predetermined by the pulse generator 6.
  • the operating variable of the signal horn 1 is recorded as the controlled variable.
  • the operating variable of the signal horn 1 is advantageously its resonant frequency or a variable proportional to it, namely the excitation current I flowing through the excitation coil 2 and the electrically controllable switch 5.
  • the excitation current I itself is not supplied to the control loop as a control variable, but rather one from the excitation current I. derived voltage.
  • U the conversion of the excitation current I into the voltage U takes place by means of a current-voltage converter, which in the simplest case is an ohmic resistor 8.
  • the voltage U is brought to a signal level suitable for a subsequent analog-digital converter 10.
  • the analog-to-digital converter 10 is required if the further signal processing in the control loop is to take place digitally. In the case of analog signal processing, the analog-to-digital converter 10 can be dispensed with.
  • the digitized controlled variable namely the voltage U, is fed to a digital frequency analyzer 11.
  • the frequency analyzer 11 determines one or more characteristic quantities of the voltage signal U. Characteristic quantities can be, for example, relative phase positions of certain harmonic spectral components and / or the spectral distribution of the signal U.
  • the frequency analyzer 11 from the determined one or more characteristic quantities of the signal U a signal processor 12 are supplied.
  • the signal processor 12 are stored desired values of these characteristic sizes, namely corresponding to a desired operation of a desired size 'excitation current profile I of the horn. 1
  • the signal processor 12 determines deviations between the variable (s) determined by the frequency analyzer 11 and the target value (s) stored in the signal processor 12.
  • the signal processor 12 provides one or more manipulated variables proportional to these deviations for the pulse generator 6.
  • the one or more manipulated variables serve to control the pulse frequency and / or the pulse duty cycle of the pulse generator 6.
  • the pulse rate and / or the pulse rate are Duty cycle of the pulse generator 6 is coordinated in such a way that "the deviations between the actual values and setpoints determined in the signal processor 12 become minimal, and thus the signal horn 1 is operated at its optimal frequency, namely the resonance frequency.
  • the signal processor 12 receives a start signal S when the switch 4 is actuated to activate the signal horn.
  • the signal processor 12 preferably carries out the comparison between one or more stored nominal values and one or more actual values supplied by the frequency analyzer 11; i.e. the control process is not started permanently but at certain repeating intervals. Every time a control process is initiated by the signal processor 12, the latter reports to the
  • Analog-digital converter 10 from a start signal A, whereupon the analog-digital converter converts the analog input signal U into a digital signal for the frequency analyzer 11.
  • the analog-to-digital converter 10 need not necessarily only in the times of the signal processor 12 initiated
  • Control process can be activated, but can carry out the analog-digital conversion continuously.
  • control circuit has the same circuit parts as in the previously described exemplary embodiments in FIG. 1. Therefore, all switching blocks in FIG. 2 also have the same reference numerals as in FIG. 1.
  • the exemplary embodiment in FIG. 2 differs from that in FIG. 1 only in that the signal processor 12 has a separate signal input 13.
  • the signal processor 12 has a separate signal input 13.
  • one or more predefined setpoints are stored in the signal processor 12.
  • Signal input 13 for the signal processor 12 now makes it possible to supply setpoints from outside which allow the frequency of the signal horn 1 to be changed in deviation from its resonance frequency.
  • the tone generated by the bugle 1 can be frequency and also in frequency
  • the changeable setpoints given to the signal input 13 of the signal processor 12 can come, for example, from a central control unit in the motor vehicle.
  • the switch 4 shown in the exemplary embodiment in FIG. 1 is also omitted.
  • the signal processor 12 also receives a start signal for the activation of the signal horn 1 via the signal input 13.
  • the signal horn 1 is switched on in this case starting from the signal processor 12 via the pulse generator 6 and the electrically controllable switch 5, which closes the circuit of the excitation coil 2 ,
  • circuit blocks 5, 6, 7 and 8, 9, 10, 11, 12 described above do not have to be separate circuits, but they can also be integrated with one another in a suitable manner.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

L'invention concerne un avertisseur sonore dont le comportement de fonctionnement subit des influences extérieures le moins possible. Cet avertisseur sonore comporte un circuit de régulation permettant l'accord adaptatif d'une grandeur de fonctionnement sur une valeur de consigne prédéterminable. Un commutateur (5) commandé par un générateur d'impulsions (6) régule un courant d'excitation (I), qui s'écoule à travers l'avertisseur sonore (1), en ce qui concerne sa fréquence d'impulsions et/ou son facteur d'utilisation des impulsions. Des moyens de commutation (11) mesurent au moins une grandeur caractéristique du courant d'excitation (I), et d'autres moyens de commutation (12) mettent à disposition du générateur d'impulsions (6) au moins une grandeur de réglage, à partir de l'écart entre la ou les grandeur(s) caractéristique(s) dérivée(s) du courant d'excitation (I) et au moins une valeur de consigne.
PCT/DE2002/002483 2001-07-25 2002-07-06 Avertisseur sonore a grandeur de fonctionnement accordable de façon adaptative WO2003011482A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02758078A EP1414590B1 (fr) 2001-07-25 2002-07-06 AVERTISSEUR SONORE A GRANDEUR DE FONCTIONNEMENT ACCORDABLE DE FAçON ADAPTATIVE
DE50205530T DE50205530D1 (de) 2001-07-25 2002-07-06 Signalhorn mit adaptiv abstimmbarer betriebsgrösse
JP2003516705A JP4076161B2 (ja) 2001-07-25 2002-07-06 適応的に調整可能な動作量を有する警笛

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136182A DE10136182C1 (de) 2001-07-25 2001-07-25 Signalhorn mit adaptiv abstimmbarer Betriebsgröße
DE10136182.3 2001-07-25

Publications (1)

Publication Number Publication Date
WO2003011482A1 true WO2003011482A1 (fr) 2003-02-13

Family

ID=7693013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002483 WO2003011482A1 (fr) 2001-07-25 2002-07-06 Avertisseur sonore a grandeur de fonctionnement accordable de façon adaptative

Country Status (7)

Country Link
EP (1) EP1414590B1 (fr)
JP (1) JP4076161B2 (fr)
CN (1) CN1301803C (fr)
AT (1) ATE314893T1 (fr)
DE (2) DE10136182C1 (fr)
ES (1) ES2254716T3 (fr)
WO (1) WO2003011482A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4026107A4 (fr) * 2019-09-03 2023-09-27 Ramasamy Krishnaswamy Dispositif d'avertissement/de signalisation sonore à commande électronique en marche avant et marche arrière

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4692111B2 (ja) * 2005-07-06 2011-06-01 富士電機ホールディングス株式会社 線量計
DE102008040468A1 (de) 2008-07-16 2010-01-21 Clarton Horn S.A. Schallerzeuger
DE102008041505A1 (de) * 2008-08-25 2010-03-04 Clarton Horn S.A. Schallerzeuger
JP6314496B2 (ja) * 2014-01-21 2018-04-25 浜名湖電装株式会社 警報音発生装置
JP5850124B2 (ja) * 2014-11-14 2016-02-03 浜名湖電装株式会社 車両接近通報装置
JP5850123B2 (ja) * 2014-11-14 2016-02-03 浜名湖電装株式会社 車両接近通報装置
KR101693195B1 (ko) * 2015-09-15 2017-01-06 주식회사 인팩 음압 보상 경음 장치 및 전압 레벨을 이용한 음압 보상 방법
ES2632260B1 (es) * 2016-03-09 2018-05-04 Clarton Horn, S.A.U. Procedimiento de control de un avisador acústico, y avisador acústico que realiza dicho procedimiento de control
US20190172441A1 (en) * 2017-12-05 2019-06-06 GM Global Technology Operations LLC Passive sound enhancement system for a vehicle
JP6872723B2 (ja) * 2017-12-27 2021-05-19 パナソニックＩｐマネジメント株式会社 音響装置、音響制御装置、及びプログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389860A2 (fr) * 1989-03-29 1990-10-03 ELECTRONSYSTEM S.p.A. Klaxon contrôlé électroniquement pour véhicules à moteur
US5414406A (en) * 1992-04-21 1995-05-09 Sparton Corporation Self-tuning vehicle horn
US5635619A (en) * 1994-07-12 1997-06-03 Iowa State University Research Foundation, Inc. Apparatus and method for driving an ultrasonic transducer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227559U (fr) * 1988-08-11 1990-02-22
DE4409279A1 (de) * 1994-03-18 1995-09-21 Fer Fahrzeugelektrik Gmbh Schaltungsanordnung für einen akustischen Signalgeber
CN1162875A (zh) * 1996-02-23 1997-10-22 哈里公司 用作改进乱真信号抑制的电流控制载波跟踪滤波器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389860A2 (fr) * 1989-03-29 1990-10-03 ELECTRONSYSTEM S.p.A. Klaxon contrôlé électroniquement pour véhicules à moteur
US5414406A (en) * 1992-04-21 1995-05-09 Sparton Corporation Self-tuning vehicle horn
US5635619A (en) * 1994-07-12 1997-06-03 Iowa State University Research Foundation, Inc. Apparatus and method for driving an ultrasonic transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4026107A4 (fr) * 2019-09-03 2023-09-27 Ramasamy Krishnaswamy Dispositif d'avertissement/de signalisation sonore à commande électronique en marche avant et marche arrière

Also Published As

Publication number Publication date
EP1414590A1 (fr) 2004-05-06
JP2004536355A (ja) 2004-12-02
ES2254716T3 (es) 2006-06-16
EP1414590B1 (fr) 2006-01-04
CN1535187A (zh) 2004-10-06
DE50205530D1 (de) 2006-03-30
ATE314893T1 (de) 2006-02-15
CN1301803C (zh) 2007-02-28
JP4076161B2 (ja) 2008-04-16
DE10136182C1 (de) 2002-12-12

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