Resources Contact Us Home
Energy storage system with ultracapacitor and switched battery

Image Number 3 for United States Patent #7667438.

An energy storage system for a vehicle includes an ultracapacitor that is electrically coupled in parallel with a battery through a diode connected in series with the battery. The ultracapacitor delivers the energy required for all high current surges that occur during engine start, acceleration, and regeneration. The battery is used only to assist with longer duration, high energy loads, such as accessory loads when an engine of the vehicle is not running. In other words, the battery conducts only during longer and less-frequent pulses and, therefore, does not have to withstand high-power pulses.

  Recently Added Patents
Method and system for filtering noises in an image scanned by charged particles
Maize hybrid X95C382
Image forming apparatus and job request control method instructed by authenticated users
Carrier for developing electrostatic charge image, developer for developing electrostatic charge image, image forming apparatus, and image forming method
Flame retardant thermoplastic elastomers
Method for production of fermentable sugars from biomass
Apoptosis inductor extracted from potato, potato foodstuff containing the inductor, and processed product thereof
  Randomly Featured Patents
Shadow mask for a color picture tube
Packaging curable materials
Forming mold cavities
Dough pump
Microwave phase-shifter and electronic scanning antenna with such phase-shifters
Enzymatic treatment of edible oils
Apparatus and system for object-based storage solid-state drive
Food service cover and support
Network security appliance