Robust, Smart Closed Loop Hydraulic Pressure Control

Request Number REQ4250837
Due Date October 23, 2015
Author Nick Kacsandi
Request for Proposal Details
RFP Title
Robust, Smart Closed Loop Hydraulic Pressure Control
RFP Description

NineSigma, representing a Global Leader in Aerospace Hydraulic Control Systems, invites proposals for innovative technologies to enable robust, reliable control of pressure within high-performance hydraulic systems. Potential long-term partners from across the landscape of industry, research and academia are invited to respond with their game-changing solutions.


NineSigma’s client manufactures a wide range of systems that rely on the fast and precise control of hydraulic pressure. Electro Hydraulic Servo Valves (EHSV) are currently used to provide pressure control and give exceptional dynamic performance. However, these components are prone to performance changes with variations in environmental conditions, exposure to fluid contamination and with long-term use. Such changes can significantly disrupt the functionality of the system, resulting in the need for unwanted maintenance activities and the potential for costly replacements by the end user.


In order to eliminate these issues, the client is seeking innovative solutions from development partners around the globe, in order to replace and improve upon the current EHSV pressure control systems currently employed. Of primary interest are technologies that are able to negate the issues faced by more traditional servo valve technologies via any suitable means, including self-monitoring and/or self-adjusting/mapping techniques to control or compensate for any performance changes, across the full range of operational use.


Anticipated Project Phases or Project Plan

Phase 1 – Develop understanding of possible application of the proposed technical solutions under development.

• Includes in-depth description, analysis of proposed technologies, joint discussions as necessary.


Phase 2 – Development of a program to demonstrate the feasibility of proposed technology, potentially including manufacture and testing of components using technologies under consideration.


Phase 3 – System integration testing using a prototype within one of the client's hydraulic control systems.

• Details to be determined pending successful Phase 1 / Phase 2 outcomes


Key Success Criteria

The successful technology will provide:

  • Fast dynamic response equal to, or better than, that available from current EHSV technologies
  • Performance that does not drift or deteriorate throughout the operational range or life of the unit.
    • Up to 107 cycles with normal wear
    • Mean time between failures: >100,000 hours
  • A low-weight solution


Furthermore, top-rated proposals will include a discussion of the technical compatibility with one or more of the following operating requirements:

  • Accurate, repeatable internal pressure control across variable operating conditions, including:
    • Temperature
    • Altitude
    • Shock
    • Vibration (random and sinusoidal)
  • A solution compatible with hydraulic pressure control fluids, including:
    • Mineral oil based
    • Synthetic hydrocarbon based
    • Phosphate ester based
  • Minimal or no internal fluid leakage
  • A solution tolerant of fluid contamination


Possible Approaches

Possible approaches might include, but are not limited to:

• Advanced hydro-mechanical technologies

• Alternative hydraulic pressure control technologies

• Self-adjusting or self-positioning technologies

• Piezoelectric technologies

• Innovative direct drive valve technologies

• In-line sensors or monitoring technologies

• Solutions incorporating advanced magnetic materials

• Solutions from adjacent industrial applications involving dynamic control and actuation or related fields


Approaches not of interest

The following approaches are not of interest:

• Non-hydraulic technologies

• Conceptual approaches that do not have a clear path towards proof of concept

• Literature reviews or patent searches


Preferred Collaboration types
Items to be submitted

To respond, please make sure you are registered in NineSights, as it will prompt you to log in. Then, use the Response options at the top or bottom of the page. You may submit supplemental files in addition to your completed response form.


Appropriate responses will use the response form and address the following:

• Non-confidential description of proposed technology

• Technical maturity of the approach (concept, proof of concept, prototype, ready to commercialize, commercialized)

○ Current IP for the proposed technology (patented, etc.)

○ Overview of organizational position on handling IP

• Compatibility of the proposed solution with the requirements outlined in the “Key Success Criteria” section above.

• Discussion of how to resolve unmet Success Criteria.

• Performance data, if available and applicable

• Budget / Cost information, if available

• Team / Organization description

• Relevant expertise, experience or background related to the RFP topic area

• Desired relationship with the RFP sponsor



Area of Interest
Request Priority
This page does not have file attachments.
This page does not have file attachments.