This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Development of Exhaust and Evaporative Emissions Systems for Plug-In Hybrid Vehicle
Published May 19, 2010 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Exhaust and evaporative emissions systems have been developed to match the characteristics and usage of Toyota THS II plug-in hybrid vehicle (PHV). Based on Toyota Prius, the Toyota PHV features an additional external charging function, which allows it to be driven as an electric vehicle (EV) in urban areas, and as an hybrid vehicle (HV) in high-speed/high-load and long-distance driving situations.
To reduce exhaust emissions, the conventional catalyst warm up control has been enhanced to achieve emissions performance that satisfies Super Ultra Low Emissions Vehicle (SULEV) standards in California in every state of battery charge. In addition, a heat-insulating fuel vapor containment system (FVS) has been developed using a plastic fuel tank based on the assumption that such a system can reduce the diffusion of vapor inside the fuel tank and the release of fuel vapor into the atmosphere to the maximum possible extent.