Patent ID: 6651759
Filing Date: 2003-11-25
Classification: B60K,B60L,B60W,Y02T,Y10S

Abstract:
A hybrid electric vehicle comprising:wheels; a low inductance electric motor for driving said wheels; a capacitor storage system electrically coupled to said electric motor; a power unit for providing power to said electric motor; a power management controller programmed to maintain said capacitor storage system between a predetermined high voltage set-point and a predetermined low voltage set-point; and wherein said low inductance electric motor is capable of delivering power at said predetermined low voltage set-point; an inverter capable of delivering power at said low voltage set-point, wherein control algorithms allow a substantially wide fluctuation of capacitor voltage while maintaining power at said inverter relatively steady; and wherein voltage levels of said capacitor storage system is maintained by an inversely proportional ratio of vehicle speed to capacitor storage system voltage to optimize performance.