Friday, September 22, 2006

Ultracapacitors & Hybrid Electric Vehicles

http://maxwell.com/ultracapacitors/applications/transportation.html

Application: Hybrid Electric Vehicles (HEV)

Key Customer Requirements

Manufacturers of HEV's are looking at relieving battery's load during high power times, such as initial acceleration and braking. These are the instances when the batteries see the highest current levels. By load leveling these spikes the batteries will last longer, saving the customer money.

Maxwell Solution

Maxwell Technologies ultracapacitors were designed to work with system batteries to improve power management and relieve peak load times stress on batteries. Our ultracapacitor technology protects the battery. It allows the battery to handle the energy requirements while the caps handle the high power requirements.

Customer Benefits

Ultracapacitors significantly improved power management in the hybrid electric vehicles and extended battery life. In addition, ultracapacitors allow for lower emissions, better fuel-efficiency and advanced electrical drive capabilities. The new power system using ultracapacitors allowed the HEV to recapture and reuse braking energy. Compared to conventional diesel engines: reduction of fuel consumption was estimated at greater than 50%; reduction in particulate emissions was greater than 90%; and reduction of nitrogen oxide emissions was 50%.

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