Detroit, Michigan – General Motors has been awarded a US$7.7 million grant by the U.S. Department of Energy to accelerate development of four technologies that will improve the fuel economy of light-duty vehicles by at least 25 per cent, while meeting strict future emissions standards.
The project integrates such technologies as lean combustion, stop-start, active thermal management, and a passive selective catalytic reduction (SCR) after-treatment system.
While the benefits of lean combustion have been known for years, commercial implementation requires an affordable emissions after-treatment system capable of meeting stringent environmental standards. The funding will enable GM to further develop cost-effective and novel lean after-treatment technology.
The funded project will involve the 2010 Chevrolet Malibu with advanced Ectotec direct-injected engine and six-speed automatic transmission. As Ecotec engines are used globally in a wide range of light-duty vehicles, successful implementation of the project will enable GM to rapidly deploy the technology. Work will begin immediately and will be conducted primarily at GM’s advanced engineering centre in Pontiac, Michigan.