Breakthrough Technology for Extremely Quiet Motor

Request Number REQ6354515
Due Date November 10, 2017
Request for Proposal Details
RFP Title
Breakthrough Technology for Extremely Quiet Motor
RFP Description

NineSigma, representing a major automotive component manufacturer, seeks innovative technologies to significantly reduce vibration and acoustic noise in order to realize extremely quiet next-generation motors. Of particular interests are future technologies capable to fundamentally reduce vibration and noise, instead of auxiliary approaches such as attenuation or absorbance of produced noise. The client recognizes that developing such quiet motors will contribute not only to new electric automobile products, but also to the development of truly electrically-motorized society where less noise pollution exists.


The major automotive component manufacturer, a client of NineSigma, develops and manufactures motors for automobiles application. Quiet and comfortable automobiles requires technologies that can control and reduce acoustic noise and vibration caused by the electromagnetic excitation force of motors.


Although the client has been continuously reviewing the motor design and its components in details, breakthrough technologies leading to fundamental improvement in terms of the design and control are necessary for extremely quiet next-generation motors. Therefore, the client has issued this open call to seek and identify potential development partners for such innovative technologies.


Key Success Criteria

Overview of target motor

  • Intended use: Automobiles
  • Type: Interior permanent magnet synchronous motor (IPMSM)
  • Output power: 50 – 200 kW
  • Output torque: 50 – 300 N・m
  • Rotational speed: 0 – 20000 rpm


Technology to be ultimately achieved

Technology to significantly decrease the electromagnetic excitation force generated in the radial and rotating axes of the motor while driving. Such technology should result in the reduction of produced noise.

  • Noise reduction level: Approximately − 10 dB
  • Frequency range of the noise: 400 – 1200 Hz
  • Other requirements: Output torque loss due to the proposed technology should be kept to a minimum (preferably, loss of less than 1%)


The above are the ultimate requirements that the client hopes to eventually achieve after the future development. Therefore, the client anticipates proposals from various organizations with potential technologies, regardless of the development phase, or type and size of the motor that the technology has been successfully implemented in. Approaches for innovative design or control technologies that contribute to extremely quiet motors are particularly anticipated.


Anticipated Project Phases or Project Plan

Respondents should submit proposals using the attached Response Template.


The client will review submitted proposals and possibly ask clarifying questions before selecting the most suitable candidates for collaboration. The client will select the best candidate(s) through evaluations. During the selection process, the client may execute non-disclosure agreements (NDA) with selected respondent(s), seek further information disclosure, and discuss specific development targets or potential opportunities.

The client will execute necessary agreement(s) with the selected respondent(s) and move to the advanced development phase. Specifics of any collaboration will be determined through consultation with the concerned parties.


Possible Approaches

Possible approaches include, but are not limited to the followings:

  • Hardware design technology to decrease the electromagnetic excitation force during driving
    • Determination of core form or the number of poles/slots in accordance with the motor characteristics
    • New ideas on winding arrangement
    • Application of new materials
  • Control technology to decrease the electromagnetic excitation force during driving
    • Optimization of driving conditions by controlling the magnetic flux
    • Canceling vibrations by applying antiphase vibrational forces
  • Structure technology which suppresses the transmission of electromagnetic excitation force during driving


Preferred Collaboration types
  • Joint Development
  • Contract Research
  • Technology Licensing
Items to be submitted

Respondents will use the Proposal Template and include the following items:

  • Overview of the proposed technology, background of the development, and its uniqueness
  • Type of the proposed technology (hardware design technology/control technology/others)
  • Development stage (concept level/simulation level/prototype level/practical use level)
  • Current performances
    • Type and size of applicable motors
    • Structure of the proposed motor
    • Level of noise that can be reduced
    • Frequency range of the noise that can be reduced
    • Impact on the torque, size, and costs by applying the proposed technology
  • IP policy
  • Current challenges and future plans to achieve the final requirements


Area of Interest
Request Priority