Development of High Power Column-Type Electric Power Steering System

摘要

Recently, demands have increased for column-type electric power steering that can be installed not only on small vehicles but also on medium-sized and large vehicles and features high output and quiet operation in view of the need to promote environmental protection and energy conservation on a global scale. Also, as the demand for systems increases, the need for C-EPS to possess high technical capability and performance is increasing. This paper introduces the following elemental technologies developed and applied to C-EPS. 1) Electronic control device equipped with a booster pump circuit 2) Brushless motor; 3) Core-to-core-distance adjustment mechanism type reduction gear; 4) Hall IC torque sensor; 5) Manual gear 6) Assist