United Defense LP, Armament Systems Division, 4800 E. River Rd., Minneapolis, MN 55421-1498

59 -- 270 VDC SERVO AMPLIFIERS AND MOTORS POC Technical Point of Contact Tim Lewis, M238, (612) 572-6198, INTERNET; tim lewis@fmc.com. United Defense LP (UDLP), Armament Systems Division, under Prime Contract DAAE30-95-C-0009, is the prime contractor for the development of the Crusader System, a new self-propelled howitzer (SPH) and resupply vehicle (RSV). UDLP is considering subcontracting design and manufacturing support for 270 VDC electromechanical servo amplifiers and motors. This is a Request For Information (RFI) for the design and manufacture of these drives to determine the availability of products (i.e., off-the-shelf) to support the requirements of the Crusader program and to arrive at a design solution that can transition from a benchtop commercial grade product, to a ruggedized version suitable for use on demonstration/validation vehicles, to an objective version for use on production-run vehicles. It is anticipated that there will be twenty five (25) drives per vehicle with an eventual production run of approximately 1650 vehicles. The peak power for each drive is anticipated to be 12 kW. It is desired that the control electronics be based on an open architecture, e.g. VME, and be packaged in an ATR or other condition cooled chassis. All control loops shall be digital so that there is not need for personality modules. The control structure shall accommodate torque, velocity, or position control and master/follower operation. Manufacturers are asked to provide information on both sinusoidal and trapezoidal commutation strategies. The supplier will be expected to deliver source code with unlimited rights to the Government. The servo shall have built-in-test (BIT) capability to detect faults in the drive electronics, control electronics, and feedback devices. Fault information shall be available to a host computer. UDLP seeks a manufacturer able to use advance control algorithms to increase the torque/speed performance of a drive for a given frame size. UDLP seeks innovative packaging solutions for use in a tactical ground vehicle (wide temperature range, watertight, etc.) environment. UDLP will use the responses to this RFI to identify capable sources for future solicitations. Responses must be received by UDLP, no later than twenty one (21) calendar days after the publication of this notice and should be submitted via US Mail (or express mail) to United Defense LP, Armament Systems Division, 4800 E. River Rd., Minneapolis, MN 55421-1498, Attention: TM Lewis, M238. Information may be submitted via facsimile (612/572-4886). UDLP reserves the right to make Small or Small Disadvantaged Business set-asides as appropriate. All information provided to UDLP shall be reproducible without restriction on its use by UDLP. (264)

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