Advanced Engine Management Using On-Board Gasoline Partial Oxidation Reforming for Meeting Super-ULEV (SULEV) Emissions Standards 1999-01-2927
This paper first reports on the benchmarking of a gasoline- fueled vehicle currently for sale in California that is certified to ULEV standards. Emissions data from this vehicle indicate the improvements necessary over current technology to meet SULEV tailpipe standards. Tests with this vehicle also show emissions levels with current technology under off-cycle conditions representative of real-world use.
We then present Delphi's strategy of on-board partial oxidation (POx) reforming with gasoline-fueled, spark-ignition engines. On-board reforming provides a source of hydrogen fuel. Tests were run with bottled gas simulating the output of a POx reformer. Results show that an advanced Engine Management System with a small on-board reformer can provide very low tailpipe emissions both under cold start and warmed-up conditions using relatively small amounts of POx gas. The data cover both normal US Federal Test Procedure (FTP) conditions as well as more extreme, off-cycle operation. Our study shows that POx reforming is an attractive candidate technology for meeting SULEV tailpipe emissions levels.
Lev-Ii Emission Solutions-SP-1510, Combustion and Controls for Advanced Engines-SP-1469, Emission Control and Fuel Economy for Port and Direct Injected SI Engines-PT-91, SAE 1999 Transactions - Journal of Fuels and Lubricants-V108-4