Electric power steering (EPS)

摘要

The effects of global warming are becoming increasingly apparent. As a result, we product engineers are being asked to develop products that are more friendly to the earth's environment. Electric power steering (EPS) is such a product. By using power only when the steering wheel is turned by the driver, it consumes approximately one-twentieth the energy of conventional hydraulic power steering systems and, as it does not contain any oil, it does not pollute the environment both when it is produced and discarded. While offering these environmental benefits now, in the future, EPS is expected to facilitate automatic steering-user-friendly technology that should ultimately reduce traffic accidents. The EPS Systems we produce have the highest market share not only in Japan but in Europe as well. This report outlines the construction of the column-type and pinion-type EPS systems produced by our company, as well as gives a technical profile of their main components: controller (ECU), sensor, and motor.