Electric power steering system using wound lead storage battery as power supply, and motor and inverter used in same

摘要

The invention relates to an electric power steering system having high performance and high reliability. The electric power steering system employs, as a power supply, a wound lead storage battery (300) in which a thin band-shaped positive plate (21), a thin band-shaped negative plate (20), and a band-shaped separator (22) interposed between the positive and negative plates (21, 20) are wound to form a plate group and the plate group is immersed in an electrolyte. In a motor (100) used for electric power steering, a plate-shaped conductor (116) is employed as a connecting ring for electrical connection between a cable (162) for introducing multi-phase AC power to stator coils (114) and the stator coils (114).