EP2559025A1 - Simulation of engine sounds in silent vehicles - Google Patents
Simulation of engine sounds in silent vehiclesInfo
- Publication number
- EP2559025A1 EP2559025A1 EP11711523A EP11711523A EP2559025A1 EP 2559025 A1 EP2559025 A1 EP 2559025A1 EP 11711523 A EP11711523 A EP 11711523A EP 11711523 A EP11711523 A EP 11711523A EP 2559025 A1 EP2559025 A1 EP 2559025A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- engine
- noise
- loudspeaker
- engine 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- Withdrawn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
- 238000004088 simulation Methods 0.000 title description 2
- 230000005236 sound signal Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004424 eye movement Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0007—Measures or means for preventing or attenuating collisions
- B60L3/0015—Prevention of collisions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
- B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/42—Means to improve acoustic vehicle detection by humans
Definitions
- the invention relates to a vehicle with an alternative engine and with at least a first speaker for outputting a noise to the environment of the vehicle.
- the document EP 1 562 177 A2 discloses a sound generator for an electric car having a speaker for outputting sounds, sounds and tunes.
- the electric car engine is relatively quiet compared to a gasoline or diesel engine. This has led in recent years to a series of accidents involving pedestrians or cyclists who have relied on their hearing and an approaching one
- the well-known sound generator is formed by a computer, with the predetermined sounds, sounds and melodies are stored.
- the computer is connected to a variety of sensors that measure, for example, the vehicle speed and other technical data of the vehicle, but also the heart rate or eye movements of the driver.
- the environment of the vehicle is monitored by means of a radar, for example to detect pedestrians.
- the computer operates a navigation software to include pedestrian crossings and other relevant events on or off the road in its calculations. Based on these calculations, one of the computer-stored sounds, sounds, or tunes is delivered through multiple speakers to inform pedestrians and other road users about the low-approaching electric car.
- a microphone is connected to the sound generator, with the
- Ambient noise can be recorded outside the vehicle.
- the volume of the sound emitted from the speakers stored sounds, sounds or tunes controlled.
- the invention has for its object to provide a simple and inexpensive way vehicles with an alternative and therefore quiet engine for others
- Amplifier means are provided to amplify the recorded engine noise and wherein the first loudspeaker is provided in the engine compartment to reproduce the recorded engine noise amplified immediately in the engine compartment again.
- Engine noise in the engine compartment creates a pedestrian or cyclist just the impression that also creates an approaching conventional vehicle with a gasoline or diesel engine.
- a particularly cost-effective and reliable over the life of the vehicle device for better perception of the vehicle is obtained.
- Other sensors and speakers for picking up and delivering, for example, the rolling noise of the tires to give outsiders the appearance of an approaching vehicle are not necessary as they occur in nature and integrate with the engine noise to the vehicle noise.
- the bonnet in a sense, forms a large diaphragm that emits the engine noise in the engine compartment to the surroundings of the vehicle.
- the provision of the loudspeaker on the bonnet results in familiar engine sounds for the pedestrian or cyclist from a conventional vehicle. Furthermore, the danger of feedback of the sound emitted by the first loudspeaker into the microphone is thereby very low.
- volume adjustment means are provided with which the volume of the engine noise emitted by the first and / or the second loudspeaker can be adjusted.
- volume adjustment especially with respect to the volume of the first speaker in the engine compartment, can only be set by the car manufacturer.
- a minimum volume for electric vehicles could be required by law, which is set once by the car manufacturer and then not changeable.
- the loudspeakers may be able to be switched off in order to deliver the amplified engine noise. It is particularly advantageous, only the switching off of the second speaker in
- a second and also further microphones may be mounted at different positions in the engine compartment to accommodate different aspects of engine noise.
- a microphone could be provided next to a gear and another next to a toothed belt or an electric motor brake of the electric motor.
- One skilled in the sound design arts will be able to locate suitable positions on different electric motors and properly blend the aspects of engine noise in the amplifiers captured by the respective microphones.
- sound shielding means such as acoustic panels or insulating panels
- sound conducting means to conduct practically exclusively the sound of the selected component in the electric motor to the microphone and to record with this.
- FIG. 1 shows a vehicle with a hybrid engine in a side view.
- FIG. 2 shows the hybrid engine of the vehicle according to FIG. 1.
- FIG. 3 shows a circuit diagram of the device for generating amplified engine noise in the vehicle according to FIG. 1.
- FIG. 1 shows a vehicle 1 with an alternative engine shown in FIG. 2, the alternative engine being formed by a hybrid engine 2.
- the hybrid engine 2 has both a gasoline engine and an electric power unit. At slow
- the gasoline engine is used to drive the vehicle 1.
- the vehicle 1 emits a normal engine sound to which the road users have become accustomed for many decades. But as soon as the gasoline unit is switched off and the vehicle 1 is driven by the electric power unit, only relatively quiet engine noises of the electric power unit are emitted by the vehicle 1.
- the vehicle 1 has three microphones 3, 4 and 5 on
- the vehicle 1 further comprises amplifier means 6, which are formed by a commercially available audio amplifier and to which the output from the three microphones 3, 4 and 5 audio signal AS is supplied.
- the amplifier means 6 are designed to amplify the audio signals AS, wherein the car manufacturer a certain sound design of the engine noise is determined by the received from the three microphones 3, 4 and 5 audio signals are mixed to different degrees amplified in the output from the amplifier means 6 engine noise signal MS ,
- the vehicle 1 further has a first loudspeaker 7, which is fixed to the inside of the hood 8 of the vehicle 1.
- the engine noise signal MS is output from the amplifier means 6 to the first speaker 7 via volume adjusting means 9.
- the sound emitted by the first loudspeaker 7 impinges directly on the engine hood 8, which acts in a certain way like a large diaphragm and emits the amplified engine noise to the surroundings of the vehicle 1. Since the engine hood 8 in the operation of the vehicle 1, the engine noise of the gasoline engine in a comparable manner (e.g.
- Resonant frequency, sound pressure to the environment of the vehicle 1 sounds like the vehicle 1 in both modes comparable and is easily perceptible.
- the vehicle 1 now also has a second loudspeaker 10, to which the engine noise signal MS is also supplied from the amplifier means 6 via the volume adjusting means 9 and which is mounted in the passenger compartment 11 of the vehicle 1.
- the user of the vehicle 1 can turn on or off the second loudspeaker 10 with an on / off switch I / O at the volume adjusting means 9, and with a dial D of the
- Volume adjusting 9 regulate the output from the speaker 10 volume. This has the advantage that the driver of the vehicle 1, the acoustic
- the engine noise emitted by the second speaker 10 can turn up at a corresponding volume.
- the speaker 10 thus enables a physical connection of the driver and the respective driving condition of the vehicle 1, whereby the accident risk is minimized. This allows the driver to drive the vehicle much better. However, if the driver wants to have rest in the passenger compartment 11, for example for a telephone call, then he can turn off the second loudspeaker 10 with the on / off switch I / O.
- the loudspeaker 10 can not be turned off in its entirety, that is, only to a certain extent, so that the driver receives a corresponding feedback from the engine in any case. Furthermore, it can be provided that the reduction of the volume of the speaker 10 or the switching off of the
- Speaker 10 is only possible for a certain period of time after the
- Speaker 10 is automatically reset to a predetermined volume. In this way it is prevented that a driver forgets the speaker 10 after a
- FIG. 3 shows a circuit diagram of the device for generating amplified engine noise in the vehicle 1 according to FIG.
- the number of three microphones 3, 4 and 5 and two speakers 7 and 10 is to be understood only as an example, since depending on the vehicle design and construction of the electric motor any larger or smaller number of microphones and speakers can be provided.
- the volume of the first loudspeaker 7 can either be automatically controlled depending on ambient noise or be manually changed to a certain extent as desired by the user by means of the volume adjustment means 9.
- the sound shielding means are mounted in close proximity to the microphones 3, 4 and 5 to interrupt the direct path of sound from the first loudspeaker 7 to the microphones 3, 4 and 5. In this way, only one or more times reflected sound and thus already very quiet sound of the first speaker 7 can get into one of the microphones 3, 4 and 5, whereby feedbacks are virtually eliminated.
- sound conducting means are provided by the component of the electric power unit whose sound is to be recorded with the microphone to the microphone.
- Sound conducting means may for example be formed by a bent plastic pipe or other comparable means known in the field of acoustics.
- hybrid engine switching means which turn off the delivery of the amplified engine noise through the speakers 7 and 10 when the vehicle 1 in the gasoline mode of the gasoline engine of Hybrid motor 2 is driven, and turn on the output of the amplified engine noise when the vehicle 1 is driven in the electric mode of the electric power unit of the hybrid motor 2.
- alternative engine is understood to mean any drive unit for a vehicle that is not formed by a gasoline or diesel engine with the currently common engine noise.
- Alternative engines are thus for example electric motors, gas engines or hydrogen engines. Should be developed in the future particularly quiet gasoline or diesel engines whose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Multimedia (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT6252010 | 2010-04-16 | ||
PCT/EP2011/054683 WO2011128200A1 (en) | 2010-04-16 | 2011-03-28 | Simulation of engine sounds in silent vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2559025A1 true EP2559025A1 (en) | 2013-02-20 |
Family
ID=43568319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11711523A Withdrawn EP2559025A1 (en) | 2010-04-16 | 2011-03-28 | Simulation of engine sounds in silent vehicles |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130208912A1 (en) |
EP (1) | EP2559025A1 (en) |
AT (1) | AT508606A3 (en) |
WO (1) | WO2011128200A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011001121B4 (en) * | 2011-03-07 | 2024-03-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Device and method for generating noise for a motor vehicle |
EP2505432A1 (en) * | 2011-03-31 | 2012-10-03 | Alcatel Lucent | Altert system for wheeled vehicles |
DE102011108956A1 (en) * | 2011-07-29 | 2013-01-31 | Audi Ag | A method for informing a driver regarding the operating state of a motor vehicle and motor vehicle |
DE102011087765A1 (en) * | 2011-12-05 | 2013-06-06 | Robert Bosch Gmbh | Method and device for damping and / or amplifying a noise introduced into a passenger compartment of a motor vehicle |
DE102012020005B4 (en) * | 2012-10-12 | 2020-01-23 | Volkswagen Aktiengesellschaft | Motor vehicle with a sound generation system for generating an artificial engine noise |
KR101323647B1 (en) * | 2013-03-18 | 2013-11-08 | 주식회사 예일전자 | Outside sound output device for vehicles |
DE102013208098A1 (en) * | 2013-05-03 | 2014-11-06 | Eberspächer Exhaust Technology GmbH & Co. KG | road vehicle |
DE202013009278U1 (en) * | 2013-10-19 | 2015-01-21 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Acoustic warning device and motor vehicle with an acoustic warning device |
DE102016207039A1 (en) * | 2016-04-26 | 2017-10-26 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for operating a vehicle having an electrical energy storage hybrid vehicle with an electric motor and with an internal combustion engine |
DE102016207043A1 (en) * | 2016-04-26 | 2017-10-26 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for operating a vehicle having an electrical energy storage hybrid vehicle with an electric motor and with an internal combustion engine |
DE102016207040A1 (en) * | 2016-04-26 | 2017-10-26 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for operating a vehicle having an electrical energy storage hybrid vehicle with an electric motor and with an internal combustion engine |
DE102016207044A1 (en) * | 2016-04-26 | 2017-10-26 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for operating a vehicle having an electrical energy storage hybrid vehicle with an electric motor and with an internal combustion engine |
DE102016207037A1 (en) * | 2016-04-26 | 2017-10-26 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for operating a vehicle having an electrical energy storage hybrid vehicle with an electric motor and with an internal combustion engine |
CN106671875A (en) * | 2017-01-25 | 2017-05-17 | 哈尔滨工业大学(威海) | Electric car driving system sound acquisition sounding method and device |
DE102017222144A1 (en) | 2017-12-07 | 2019-06-13 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for generating a noise in a motor vehicle, and motor vehicle |
DE102019005775A1 (en) * | 2019-08-16 | 2021-02-18 | Sandro Zubrod | E-Ton patent simulation of engine noise |
Family Cites Families (19)
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JPH0640289A (en) * | 1992-07-08 | 1994-02-15 | Chieko Hirata | Vehicle approach warning device |
BE1007188A3 (en) * | 1993-06-30 | 1995-04-18 | Staar Sa | Process automatic adjustment of the volume of sound reproduction. |
JPH07182587A (en) * | 1993-12-21 | 1995-07-21 | Honda Motor Co Ltd | Device for generating pseudo sound for electric vehicle |
US6275590B1 (en) * | 1998-09-17 | 2001-08-14 | Robert S. Prus | Engine noise simulating novelty device |
US6959094B1 (en) * | 2000-04-20 | 2005-10-25 | Analog Devices, Inc. | Apparatus and methods for synthesis of internal combustion engine vehicle sounds |
DE10107385A1 (en) * | 2001-02-16 | 2002-09-05 | Harman Audio Electronic Sys | Device for adjusting the volume depending on noise |
US6612400B2 (en) * | 2002-01-05 | 2003-09-02 | Andres E. Bravo | Electronically controlled variable loudness muffler |
DE60307590T2 (en) * | 2003-02-20 | 2007-08-09 | Sony Ericsson Mobile Communications Ab | Electronic drive circuit for directing an audio signal optionally to one of two speakers |
JP2005219715A (en) | 2004-02-09 | 2005-08-18 | Pioneer Electronic Corp | Pseudo sound generating device, vehicle, pseudo sound generating method and pseudo sound generating program |
WO2006095876A1 (en) * | 2005-03-11 | 2006-09-14 | Yamaha Corporation | Engine sound processing device |
JP2006264390A (en) * | 2005-03-22 | 2006-10-05 | Yamaha Corp | Acoustic alarming device of vehicle |
JP4341608B2 (en) * | 2005-11-01 | 2009-10-07 | トヨタ自動車株式会社 | Engine sound control device |
JP2007283809A (en) * | 2006-04-13 | 2007-11-01 | Anden | Alarm sound generating device to emit alarm to around vehicle |
DE102007003201A1 (en) * | 2006-11-28 | 2008-05-29 | Alfred Trzmiel | Device for generating audio signals |
JP2009040318A (en) * | 2007-08-10 | 2009-02-26 | Toyota Motor Corp | Vehicle approach notifying device |
JP2009292337A (en) * | 2008-06-05 | 2009-12-17 | Kansai Electric Power Co Inc:The | Motor-mounted automobile and motor sound generating method |
EP2211564B1 (en) * | 2009-01-23 | 2014-09-10 | Harman Becker Automotive Systems GmbH | Passenger compartment communication system |
US8320581B2 (en) * | 2010-03-03 | 2012-11-27 | Bose Corporation | Vehicle engine sound enhancement |
EP2367286B1 (en) * | 2010-03-12 | 2013-02-20 | Harman Becker Automotive Systems GmbH | Automatic correction of loudness level in audio signals |
-
2010
- 2010-10-14 AT AT0171110A patent/AT508606A3/en not_active Application Discontinuation
-
2011
- 2011-03-28 US US13/641,251 patent/US20130208912A1/en not_active Abandoned
- 2011-03-28 EP EP11711523A patent/EP2559025A1/en not_active Withdrawn
- 2011-03-28 WO PCT/EP2011/054683 patent/WO2011128200A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011128200A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20130208912A1 (en) | 2013-08-15 |
AT508606A2 (en) | 2011-02-15 |
WO2011128200A1 (en) | 2011-10-20 |
AT508606A3 (en) | 2011-11-15 |
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