EP1014336A2 - Procédé et dispositif pour générer du bruit, en particulier le bruit de commutation - Google Patents

Procédé et dispositif pour générer du bruit, en particulier le bruit de commutation Download PDF

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Publication number
EP1014336A2
EP1014336A2 EP99124031A EP99124031A EP1014336A2 EP 1014336 A2 EP1014336 A2 EP 1014336A2 EP 99124031 A EP99124031 A EP 99124031A EP 99124031 A EP99124031 A EP 99124031A EP 1014336 A2 EP1014336 A2 EP 1014336A2
Authority
EP
European Patent Office
Prior art keywords
frequency
frequencies
unit
generated
memory
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Withdrawn
Application number
EP99124031A
Other languages
German (de)
English (en)
Other versions
EP1014336A3 (fr
Inventor
Axel MÜLLER
Darius Wieczorek
Antonio Romero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Mannesmann VDO AG
Siemens AG
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 Mannesmann VDO AG, Siemens AG filed Critical Mannesmann VDO AG
Publication of EP1014336A2 publication Critical patent/EP1014336A2/fr
Publication of EP1014336A3 publication Critical patent/EP1014336A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves

Definitions

  • the invention relates to a method and an apparatus for generating of noises, in particular of switching noises electrical Switches in motor vehicles.
  • the switch in motor vehicles has no acoustic signal for the user Feedback whether the desired switch actually switches. So is z. B. the driver used to that after turning on Direction indicator a sound in time with the flashing relay switching operations sounds.
  • the sound used to be in the electromechanical flasher relay by closing or opening the Switch contacts generated. Because today's electronic flasher relay is silent switch, additional procedures are used and are additional Devices are provided for generating or generating switching noise imitate.
  • Known methods and devices produce this Switching noise either through a so-called knocker, which is similar how an electromechanical relay is constructed or by a electronic circuit that has one tone or more periodic tones delivers.
  • a disadvantage of the knocker is the high price of the electromechanical component and the required installation space. Disadvantageous in the known electronic methods and circuits, it is that the periodic tones do not sound like a switch and therefore from Drivers either not as an indication of the function of the Switch, in particular the flasher relay rated or as unnatural and to be annoying.
  • the object of the invention is therefore a method and a device specify with the noises, in particular switching noises from Switches in motor vehicles can be realistically simulated.
  • a device has a Storage unit for storing frequency values, a frequency generation unit to generate frequencies corresponding to the read frequency values and a processing unit for sequential readout of the frequency values from the memory unit and sequential reading into the frequency generating unit and one Converter unit that is generated with that in the frequency generating unit Frequencies is driven and so the generated frequencies in Converts sound waves with the corresponding frequencies.
  • the sound converter When simulating switching noises, the sound converter becomes Advantageously controlled only in the time that a listener with one a switching noise from a real event can perceive. This saves a lot of storage space and one Processing unit is much less stressed, so that it is also different Can perform tasks.
  • Allocate volume is one of those Driving speed of a motor vehicle dependent noise generation feasible and secondly an even more realistic one Noise simulation.
  • FIG 1 are the frequencies generated in accordance with the invention
  • An acoustic flashing relay is shown using the example.
  • a mechanical one Flasher relay generates one when the two contacts meet bright tone, whose sound emulated by the invention sequential frequencies is realized, which in Figure 1 with TIC 1 - TICn are designated.
  • the more dull one created when the two contacts were loosened or lower tone is simulated according to the invention with frequencies that are designated with TAC 1 - TACm.
  • the lighter tone TIC is perceived by the human ear for about 5 msec. Therefore, this tone must also be reproduced 5 msec.
  • the duller tone TAC is perceived by the human ear for about 10 msec and is reproduced accordingly for a longer time.
  • the frequencies used depend on the noise to be simulated and on the frequency response of the transducer unit, which converts the electrical frequencies into sound waves. A clue to the frequencies to be selected can be found by spectral analysis of the noise to be simulated. More than two different frequencies can also be used to emulate a tone.
  • FIG. 2 shows a memory unit 1, a processing unit 2 in the form of a Microprocessor, a frequency generating unit 3 and Converter unit in the form of a loudspeaker 4.
  • the microprocessor 2 To produce the lighter tone TIC, the microprocessor 2 first reads the value TIC 1 from memory 1 and loads it into the Frequency generating unit 3, the correspondingly loaded frequency until another command is generated. The microprocessor 2 can Dedicate other tasks first. Reads after a millisecond he the value TIC 2 from the storage unit 1 and loads it into the Frequency generation unit 3. The frequency generation unit then ends 3 the frequency which corresponds to the value TIC 1 and generates the frequency that corresponds to the value TIC 2. The microprocessor 2 reads a following value from the table every millisecond, so far comes to the value TIC n.
  • the microprocessor 2 After the frequency f1 is generated one msec, which corresponds to the value TIC n, the microprocessor 2 gives the Frequency generation unit the command to start the frequency generation break up.
  • the converter unit in the form of the speaker 4 converts the generated frequencies in corresponding sound waves so that a Listeners heard a TIC.
  • the microprocessor is 2 the value TAC 1 from the storage unit 1 and loads it into the Frequency generation unit 3, which is stored in TAC 1 Frequency value generated.
  • the microprocessor 2 reads the value TAC stored value 2 from the memory unit 1 and loads him in the frequency generation unit 3, which the generation in TAC 1 corresponding frequency ended and with the TAC 2 corresponding Frequency starts. The procedure continues accordingly until the Microprocessor 2 1 msec after loading the frequency TACm the Frequency product unit 3 gives the command to start frequency generation break up.
  • FIG 3 shows a possible circuit for controlling a speaker 4 as a converter unit with a square wave signal.
  • the loudspeaker 4 has one connection to the supply span VCC and its other connection to a capacitor C, the second connection of which is connected to the collector of a transistor T.
  • the emitter of the transistor C is connected to the ground potential via an emitter resistor R E.
  • a resistor R p is arranged between the supply voltage VCC and the collector of the transistor T.
  • the square-wave signal f n generated in a frequency generation unit 3 reaches the base of the transistor via the series resistor R V. If the signal f n has a high level, the transistor T turns on, the loudspeaker 4 is connected to the ground potential via the capacitor C and its membrane picks up.
  • the transistor T blocks and the capacitor C discharges through the resistor R p and the loudspeaker 4, so that the membrane of the loudspeaker 4 is pulled in the opposite direction.
  • the loudspeaker oscillates in time with the square-wave signal f n .
  • the harmonics of the square wave signal are so strongly attenuated by the loudspeaker 4 that they are barely audible.
  • the invention is not based on the above Embodiment limited. For example, also Simulate switching noises from other switches, e.g. B. one Acknowledging drivers acoustically, for example, can also Simulate switching noises from other switches and e.g. B. one Acoustic feedback to motorists, for example, that a film switch or has switched an inductive or capacitive switch.
  • the Noise simulation is not based on the simulation of switching noises limited. Other sounds can also be simulated, for example for other information and / or warning purposes.

Landscapes

  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP99124031A 1998-12-23 1999-12-09 Procédé et dispositif pour générer du bruit, en particulier le bruit de commutation Withdrawn EP1014336A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998160113 DE19860113B4 (de) 1998-12-23 1998-12-23 Verfahren und Vorrichtung zum Erzeugen von Geräuschen, insbesondere von Schaltgeräuschen
DE19860113 1998-12-23

Publications (2)

Publication Number Publication Date
EP1014336A2 true EP1014336A2 (fr) 2000-06-28
EP1014336A3 EP1014336A3 (fr) 2004-02-04

Family

ID=7892699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124031A Withdrawn EP1014336A3 (fr) 1998-12-23 1999-12-09 Procédé et dispositif pour générer du bruit, en particulier le bruit de commutation

Country Status (2)

Country Link
EP (1) EP1014336A3 (fr)
DE (1) DE19860113B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015112608A3 (fr) * 2014-01-23 2015-10-22 Federal Signal Corporation Production de son

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137529A1 (de) * 2001-08-01 2003-02-13 Delphi Tech Inc Tongenerator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934239A (en) * 1987-11-05 1990-06-19 United Microelectronics Corporation One memory multi-tone generator
JPH0511789A (ja) * 1991-07-04 1993-01-22 Sasaki Denki Seisakusho:Kk 電子サイレン装置
DE4442233A1 (de) * 1993-11-26 1995-06-01 Nippon Denso Co Geräuschsteuerungssystem
DE19641493C2 (de) * 1996-10-09 2000-05-11 Mannesmann Vdo Ag Signaleinrichtung für ein Kraftfahrzeug
DE19701801C2 (de) * 1996-12-20 1998-10-29 Aarcon Prauss Arminius Gmbh Vorrichtung zur Imitation von Motor- und Fahrzeuggeräuschen
DE19819998A1 (de) * 1998-05-06 1999-11-11 Valeo Electronics Gmbh & Co Kg Vorrichtung zur Erzeugung von Geräuschen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015112608A3 (fr) * 2014-01-23 2015-10-22 Federal Signal Corporation Production de son
US9900705B2 (en) 2014-01-23 2018-02-20 Federal Signal Corporation Tone generation

Also Published As

Publication number Publication date
DE19860113A1 (de) 2000-07-06
EP1014336A3 (fr) 2004-02-04
DE19860113B4 (de) 2004-03-18

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