Jtekt Corporation

So Saito

Yuji Kariatsumari

Syouma Edamoto

A steering system includes a first operation device including a first displacement mechanism, a first electric drive source, and a first detector, a second operation device including a second displacement mechanism, a second electric drive source, and a second detector, and a determiner configured to determine that the first operation device and the second operation device do not malfunction when the determiner determines that the first operation device has an abnormality based on first operation information related to operation of the first operation device, and that the second operation device has an abnormality based on second operation information related to operation of the second operation device.

Steering system, abnormality determination method, and non-transitory storage medium

In a rotation angle detecting device, a first magnetic sensor and a second magnetic sensor are disposed at an interval of an electrical angle of 120 degrees around a rotation center axis of a rotor. An output signal of the first magnetic sensor is expressed by V=sin &#x3b8;, and an output signal of the second magnetic sensor is expressed by V=sin(&#x3b8;+120). A determination device determines whether both the magnetic sensors are normal, or there is a failure in at least one of the magnetic sensors, based on whether an expression of L&#x2266;V+V+V&#xb7;V&#x2212;0.75&#x2266;U is satisfied, where L is a lower limit and U is an upper limit.

Growing community of inventors

Kashiwara, Japan

So Saito