September 30, 2012

Visteon improves vehicle efficiency and occupant comfort with latest heat pump system

Visteon Corporation has developed a heat pump system that effectively utilises ambient air and ancillary heat to improve cabin conditioning for hybrid and electric vehicles. By drawing less power from the lithium-ion battery, vehicles equipped with the heat pump
system can operate longer on a single charge.

Combustion engines create waste heat that be used to warm the vehicle cabin. Since hybrid and electric vehicles generate considerably less heat, the climate system must produce heat for the cabin, a process that drains power from the battery. Visteon's heat pump system transfers energy contained in the ambient air to cool and heat the cabin. Its electric compressor cools the cabin of a hybrid or electric vehicle by operating the refrigerant cycle in one direction, and heats the cabin by operating the cycle in the reverse direction.

This heat pump system consumes about 50 per cent less power and can extend the number of miles driven on a battery charge by 30 per cent. This electric vehicle data compares Visteon's heat pump system to an electric heater during a New York City drive cycle at minus 10-degrees celsius.

"Our heat pump system is a great example of innovations from Visteon that take advantage of available energy to make electric and hybrid vehicles drive farther," said Nurdal Kuecuekkaya, General Manager – Climate, Europe. "This heat pump is versatile since it can easily be added to an existing automotive climate system architecture."

For more than 10 years, Visteon has been using its full-vehicle system knowledge to develop heat pump systems, which has lead to several co-development projects with vehicle manufacturers in Europe and Asia. Visteon has used this experience to create solutions that improve the drive range of hybrid and electric vehicles, resulting in commercialisation contracts.


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