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Kit for Diesel Plug-in Hybrid Three-Wheeler to Debut
March 20, 2007
|The powertrain layout of the XR-3. Click to enlarge.|
Robert Q. Riley Enterprises, LLC, a product design firm in Glendale, Ariz., will soon introduce the kit and plans for its XR-3 plug-in hybrid, a two-passenger, three-wheel vehicle with an expected fuel economy rating between 125 and 225 miles per gallon.
While the front wheels are powered by a three-cylinder, 23 hp (17 kW) diesel engine, a single rear wheel uses an electric motor run by a lithium-ion battery. The ground provides the connection between the two systems, eliminating the need for an electronic and mechanical interface.