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	Using computer control and automatic data acquisition, the Institute evaluates the performance of a variety of transmissions and transaxles on dual DC dynamometer test stands.

Motorcycle drivetrain development at Southwest Research Institute (SwRI) focuses on efficiently delivering engine power to the tire and road interface. SwRI optimizes the input/output ratios at the primary drive, transmission, and secondary drive while simultaneously maximizing the power density of each component. Institute engineers model, design, and analyze a wide array of power transferring technologies, such as:

• Belts

• Chains

• Gears

• Automatic transmissions

• CVT transmissions, both toroidal and push/pull belt types

	SwRI facilities include transaxle, transmission, torque converter, and powertrain dynamometer test stands.

SwRI engineers maximize drivetrain efficiency through a variety of techniques, including:

	SwRI's transaxle test stand, capable of testing transaxles for 1.3- to 5.8-liter engines, is specifically designed to eliminate differential speed effects.

• Reducing gear deflection

• Minimizing shaft bending

• Reducing windage and churning losses

At SwRI, we are always striving to offer the best services possible to our clients. This motorcycle technology information represents only a small portion of how SwRI can assist your company with motorcycle testing, research, and development. For a more comprehensive review of our capabilities or information on how you can contract with SwRI, please contact Charles Roberts, Ph.D., at croberts@swri.org or (210) 522-5521 to arrange a tour of our complete facilities. We look forward to seeing you in San Antonio.
 

| Engine and Vehicle R&D | Engine, Emissions & Vehicle Research Division | SwRI Home |

Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

August 04, 2008