Nsk Corporation

Akira Ichikawa

Naoki Sawada

Masaki Tomaru

Ryou Oosawa

A design assistance device for a steering device and a method of assisting a steering device design which assists a design of a steering device including an intermediate shaft by using existing components of a tube yoke and a shaft yoke. A design assistance devicefor a steering device displays a select button on a display device when a fitting length of the combination of a candidate component of the tube yoke and a candidate component of the shaft yoke satisfies a condition of a fitting length. When the select button is selected, a control devicemay receive information in which a drawing selected by a designer is determined.

Assistance device for steering device and method of assisting steering device design

A design assisting apparatus of a steering device arranges a coordinate of a handle position reference point, a coordinate of a first universal joint reference point, a coordinate of a second universal joint reference point, and a coordinate of a steering gear reference point in a three-dimensional space, calculates a reference axis passing through the second universal joint reference point from the first universal joint reference point, calculates a phase angle which is an angle between a straight line from the handle position reference point to the first joint reference point when viewed along the reference axis and a straight line from the second joint reference point to the steering gear reference point when viewed along the reference axis, and determines success or failure of a condition in which the allowable range of the phase angle allowable error is included in the allowable range of the allowable torque variation rate.

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Fujisawa, Japan

Akira Ichikawa