Hybrid System Optimization of the Intelligently Electrified HyBoost Gasoline Engine Demonstrator Vehicle

摘要

1. The HyBoost project has shown that gasoline engine downsizing has further potential if the problem of turbocharger lag is addressed through intelligent electrification 2. The HyBoost concept uses a turbocharged direct-injection gasoline engine in conjunction with a micro-hybrid system and electric supercharger 3. With this mix of proven or ready-for-implementation electric components, engine downsizing of 50% can be achieved without harming vehicle performance or driveability 4. The Ford Focus vehicle used on the project achieved a CO_2 level of under 99 g/km, and the project has identified opportunities for further reductions in CO_2 emissions 5. Overall the HyBoost concept achieves CO_2 emissions close to full hybrid levels at a lower cost.