PCCI technology and fuels

Premixed Charge Compression-Ignition (PCCI) technology is nearing a crucial point in its evolution. Technological advancements need to solve the issues around cold start, high load and transient operation (overall drivability) and exhaust emissions control to make it a feasible future alternative for advanced direct injection spark-ignition and compression-ignition engines. What technical solutions can be implemented to overcome these barriers in a cost-effective manner?

The deadline has passed and submissions are no longer being accepted for the 2012 Technology Quest