Maxwell Technologies, Inc.

Jeremy Michael Cowperthwaite

John Michael Miller

Thomas J Dougherty

Priya Bendale

Robert Shaw Lynds

Jeff Brakley

Ilya Kaminsky

Mikael Setterberg

Ulf Carl Mikael Setterberg

Ha Q Hung

This disclosure provides systems, methods and apparatus for a engine start system. In one aspect, the engine start system includes: a booster battery selectively connected in parallel with the primary batteries of the engine. The booster battery is disconnected when the battery voltage of the primary batteries is below a first target voltage. The booster battery is connected when the battery voltage of the primary batteries is at or above the second target voltage, or in response to an external input.

System and methods for improved starting of combustion engines

This disclosure provides systems, methods and apparatus for a combined battery/capacitor energy storage device. The device includes a first device terminal, a second device terminal, a battery connected between the first terminal and the second terminal, and a capacitor connected in parallel with the battery. In one aspect, a rectifier is connected between the first terminal and the capacitor, the rectifier configured to allow substantially unidirectional current flow from the first terminal to the capacitor. In another aspect, a switch is between the capacitor and the first terminal. In another aspect, a current limiter extends between the first terminal and the capacitor.

Ultracapacitor and battery combination with electronic management system

Growing community of inventors

San Diego, CA, United States of America

Jeremy Michael Cowperthwaite