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Búsqueda de socios para continuar con el desarrollo de un sistema de generación de ruido sintético para vehículos eléctricos


Demanda Tecnológica
Una pyme turca de ingeniería que trabaja en el campo de ruido, vibraciones y dureza de vehículos busca socios con experiencia en desarrollo de componentes, fabricación de vehículos eléctricos y diseño de placas eléctricas con el fin de continuar con el desarrollo de un sistema de generación de ruido sintético para vehículos eléctricos. La empresa está interesada en establecer acuerdos de investigación o cooperación técnica.


Searching partners for further development of synthetic noise generation system for electric vehicles (EVs).
A Turkish engineering SME working on noise, vibration and harshness of vehicles is searching partners in component, electrical vehicle development, manufacturing and electrical board design for further development of their synthetic noise generation system for electrical vehicles. The company intends to make a research cooperation agreement or technical cooperation agreement.
Electric vehicles (EVs) radiate almost no audible noise from the idle condition to around 30kph. Therefore, various countries started preparing legislations for the min. radiated sound levels of EVs. These legislations also provide spectrum requirements and minimum sound levels which should be met. Since these systems will be used on EVs, power consumption levels should also be considered as a requirement.
A Turkish engineering SME working on noise and vibration, system dynamics and computational fluid dynamics has developed a prototype sound generator system to meet these requirements. However, there are many points available for further development;
1) The system changes the frequency spectrum in case if a similar frequency is available around the vehicle (ambient/environmental sound level and spectrum - 1/3 octave bands) to make sure that the vehicle is detectable and not to increase ambient sound level by further increasing the coincident octave band. This decision making process should also include vehicles available in the vicinity (car2car communication) so that different brands with different spectrums should not cause a constant shift between frequencies.
2) Depending on the rpm (revolutions per minute) level, each octave band frequency shifts to higher frequencies to generate the change of speed feeling. Unfortunately, most patents and available solutions use flash memory on the circuit to dump in pre-defined sounds and playback depending on the rpm. As a result of this, dynamic sound change can only be achieved by playing around with available noises. The noise generation could be mixed with flash data and dynamic sound generator (on card) so that depending on the rpm and environmental frequency change a better characteristic sound could be generated. Cooperation for further development would be useful.
3) Sound amplification on circuit is another issue. Since the speakers are mounted in some part of the vehicle (generally 2 front, 1 back) and needs to meet >55- 60 dB at some octaves at a given distance, the circuit should provide the necessary power. Or an alternative may be to use vehicle body parts or components as speakers. There is a need for finding a method for hybrid solution of playing and generating the sounds.
4) Generated sound according to legislations is mostly perceived as white noise and very hard to give a feeling of vehicle approaching. Therefore, different sound types according to legislations should be provided. New sound types (not copied from internal vehicles) must be generated.
5) Testing and further development requires working on electric vehicles and getting customer feedback.

The Turkish SME is looking for partners for further development of its sound generator for overcoming the issues stated above. The potential partners shall be working on vehicle and /or component development and on electronic board design as well as working on EVs. The company intends to make a research cooperation agreement possibly to be funded under an international research and development program such as EUREKA, Eurostars or H2020 or a technical cooperation agreement.
Technical Specification or Expertise Sought:
Technical specifications / expertise required for the topics listed in the description;
1) Vehicle and/or component development companies working on car2car communication with technologies like Bluetooth, Zigbee vs.
2) Companies experienced in electric board design and component selection would be required to fulfill this topic.
3) Similar to topic no.2.
4) Vehicle/component development companies required to work on the design of sound (with alternative tools - Pure data etc.) so that alternative sound types could be generated and a platform for designing sound for EVs could be generated.
5) Vehicle manufacturers are required to provide a platform for testing of the products and provide feedback on generated sounds.

Partner sought

Type and Role of Partner Sought:
The partner is sought for cooperation in co-development of the prototype sound generation system preferably through a research cooperation agreement or technical cooperation agreement.
Potential partners shall be working on vehicle and/or component development sector, on electrical board design or must be manufacturers of electrical vehicles.


Type and Size of Client:
Industry SME <= 10
Already Engaged in Trans-National Cooperation:
Languages Spoken: