SRCSGT | 23 | The Aberdeen Test Center located at Aberdeen Proving Ground, MD is requesting information (Sources Sought) on availability of services to upgrade control systems on two Mobile Dynamometers.

FBO DAILY ISSUE OF NOVEMBER 02, 2006 FBO #1802
SOURCES SOUGHT

23 -- The Aberdeen Test Center located at Aberdeen Proving Ground, MD is requesting information (Sources Sought) on availability of services to upgrade control systems on two Mobile Dynamometers.

Notice Date: 10/31/2006
Notice Type: Sources Sought
NAICS: 336399 — All Other Motor Vehicle Parts Manufacturing
Contracting Office: ACA, Aberdeen Proving Ground, Directorate of Contracting, 4118 Susquehanna Avenue, Aberdeen Proving Ground, MD 21005-3013
ZIP Code: 21005-3013
Solicitation Number: W91ZLK07T0000
Response Due: 11/16/2006
Archive Date: 1/15/2007
Small Business Set-Aside: N/A
Description: This is a Sources Sought announcement and is for informational purposes only. THIS IS NOT A REQUEST FOR PROPOSALS. The Aberdeen Test Center located at Aberdeen Proving Ground, MD is requesting information on availability of services to upgrade cont rol systems on two Mobile Dynamometers. 1.0 Summary The US Army Aberdeen Test Centers (ATC) Automotive Instrumentation Division operates two special purpose Dynamometer vehicles. They referred to as the M16 Heavy Mobile Dynamometer Vehicle (manufactured by Barnes and Reinecke in the late 1970s) and the M1 8 Medium Mobile Dynamometer Vehicle (manufactured, also by Barnes and Reinecke, in the late 1980s). These vehicles are designed for testing power drawbar effect and resistance to towing characteristics of tracked and wheeled vehicles. Testing apparatus for determining component cooling characteristics of these vehicle types is also included on these vehi cles. Both vehicles utilize a diesel engine-powered electric drive system. ATC desires to upgrade the engine/drive control systems on both systems to current technology reusing the existing vehicle frame and major components. The upgraded systems will support al l the existing modes of operation with the desired addition of a constant power mode. The M16 and M18 dynamometers are presently in service at Aberdeen Proving Ground, Maryland (APG) and can be inspected by prospective bidders. The following sections outline the current systems which are similar as far as chassis but have different engines, traction motors, and control systems. It is desired that the upgraded control systems be as similar as possible. 2.0 Major Vehicle Subsystems (Current Implementation) 2.0.1 Power Package 2.0.1.1 M16 Heavy Dynamometer The M16 dynamometer power package is based upon a GM-EMD, model EMD8-645E4 turbocharged diesel engine (1650 hp) coupled to a GM-EMD, model AR5, 3-phase AC current generator. The power developed drives two GM-EMD, model D79-F series wound, four-pole, direct current traction motors. 2.0.1.2 M18 Medium Dynamometer The M18 dynamometer power package is based upon a Cummins, model KTA-19P600 turbocharged diesel engine (600 hp) coupled to a GE, model 603, 3-phase AC current generator. The power developed drives one GE, model 5GE773DS2 series wound, four-pole, direct cur rent traction motor. 2.1.1 Current Vehicle Operational Modes There are three primary operating modes: prime mover, dynamometer, and truck. Also there are two auxiliary modes: inch and winch. Prime Mover Mode The traction motor(s) function as electric drive motor(s) and the propulsion of the vehicle is taking place. In this mode, a speed-setting potentiometer creates the demand for more or less propulsion. The control system will increase or decrease the vehicle speed until the actual speed matches the desired speed. At any time, the brake pedal can override this system can call for maximum dynamic braking. Dynamometer Mode The traction motor(s) function as generator(s) with its output across the dynamic retarding grid resistors. In this mode the vehicle becomes a dynamic load to any vehicle that is trying to tow it at a constant speed. The level of the ret arding load is a function of the brake pedal position or the speed-setting potentiometer. The speed control system will initiate more or less retarding in order to maintain the speed desired by altering the traction motor field current. At any time, the br ake pedal can override this system and call for maximum dynamic braking. Truck Mode The electric speed control is taken out of the system. The vehicle speed is controlled by the accelerator foot pedal and functions similar to any hybrid electric vehicle. Dynamic braking can still occur by pressing the brake foot pedal. Truck mode operation is generally used to move the vehicle to and from test sites. Inch Mode Similar to truck mode where the vehicle speed is controlled via the accelerator pedal . It is different in that (1) it is a very fine control in the low speed range; (2) the horsepower card (General Electric 1466, M18 only) is driven directly by the accelerator foot pedal, whereas in the primary Truck mode it is not; and (3) inch mode all ows the driver more accurate control of the vehicle when coupling to other vehicles, hooking up tow bars, etc. Before inch mode can occur, the mode select switch must be in truck mode. Winch Mode identical to inch mode with the exception that a 10K potentiometer drives the GE 1466 horsepower control card (M18 only) and much finer control is achieved. Static Line Pulls The front load cells may be retracted using its hydraulic cylinder, to apply static line pulls and read the tension load with the dynamometer parked. Extending the load cell will remove the load. 3.0 Updated Control Systems It is desired that to the greatest extent possible the new control systems will reuse the prime mover, generator, traction motor, auxiliary power unit and dynamic braking grid. Other secondary elements such as heating/air conditioning, defroster are not ex pected to require any modification other than if required for control purposes. It is desired that both the M16 and M18 use common control components to the greatest extent possible. Operational modes will remain consistent with modes supported by the current systems with the addition of a constant load input to the speed control servo when operated in dynamometer mode. It is anticipated that the new control system will replace the current contactors, relays, sensors, displays and associated wiring. ATC envisions that the new control system will include discrete switches, encoders, and LCD touch screens as required. Opera tional data will be logged by the system and must be made available to the operators in a serial data format similar to either J1708 or J1939. 4.0 Built-in Testing/System Debugging The system will provide built-in testing and troubleshooting tools to assist in testing and debugging system faults. 4.1 Special Test Equipment Any special test equipment required for testing and troubleshooting the system shall be identified. Pricing and sourcing information shall be identified. 4.2 Documentation The system will be fully documented to include wiring diagrams, schematics, parts lists, source code, and purchase sources for all components. Any special tools will be identified. A theory of operation document shall be provided to assist engineers in und erstanding system operation and a set of troubleshooting instructions will be provided. 4.3 Recommended Spares The system will have a list of recommended spares provided 5.0 Notes: The current M18 dynamometer was designed by Barnes and Reinecke, Inc. to provide tractive effort (prime mover mode) and absorbtion capacities (dynamometer mode) per specifications provided by APG. The paper Mobile Dynamometer and Absorption Trailer for Military Vehicles was written by Wasynczuk and Landes (1987) describing the performance evaluation and testing of the M18 as it was delivered to ATC. Wasynczuk V. & Landes L. G. (1987). Mobile dynamometer and absorption trailer for military vehicles. SAE Technical Paper Series, 871600, International Off-Highway and Powerplant Congress and Exposition, Milwaukee, WI, September 14-17, 1987 6.0 More Information Active registration in the Central Contractor Registration (CCR) database is mandatory. Companies capable of providing this repair service upgrade are encouraged to respond. Please provide company name, points of contact, and a brief statement of capabil ities. Indicate corporate background with business size and type. Submit information via electronic mail or fax by November 16, 2006 no later than 5:00 PM EST at the US Army Contracting Agency, SFCA-NR-APC-T (Tanya Peel), 4118 Susquehanna Avenue, Aberdee n Proving Ground, MD 21005-3013. Information or questions concerning this sources sought can be directed to Tanya Peel, Contract Specialist via fax 410-306-3890 or via email at tanya.peel@us.army.mil.
Place of Performance: Address: ACA, Aberdeen Proving Ground Directorate of Contracting, 4118 Susquehanna Avenue Aberdeen Proving Ground MD; Zip Code: 21005-3013; Country: US
Record: SN01173603-W 20061102/061101024932 (fbodaily.com)
Source: FedBizOpps Link to This Notice
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23 -- The Aberdeen Test Center located at Aberdeen Proving Ground, MD is requesting information (Sources Sought) on availability of services to upgrade control systems on two Mobile Dynamometers.