A method for optimizing and simulating fluctuation of an angle-adjustable steering column

By applying the "bisection method" and an EXCEL applet to the automotive steering system, the arrangement of the steering gear input shaft and column axis was optimized, solving the problem of the fluctuation rate not meeting the requirements in the hard point design of the angle-adjustable steering column, and realizing a fast and labor-saving optimization process.

CN117195396BActive Publication Date: 2026-07-24SINO TRUK JINAN POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINO TRUK JINAN POWER CO LTD
Filing Date
2023-09-01
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In automotive steering systems, the design of hard points for angle-adjustable steering columns is challenging because it is difficult to simultaneously meet the requirement that the fluctuation rate of the upper limit, lower limit, and intermediate position be less than 5%. This results in a cumbersome and time-consuming design process, and the outcome may not be optimal.

Method used

By employing the "bisection method" in conjunction with the EXCEL mini-program, the arrangement of the steering gear input shaft, intermediate shaft, and column axis is optimized. By utilizing the common perpendicular of skew lines and the spatial angle bisector, hard points that meet the design requirements can be quickly found, achieving a design with a volatility of less than 5%.

Benefits of technology

It achieves fast and labor-saving optimization of steering column volatility, requiring only 2-3 iterations to find the optimal solution, saving development and verification time.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117195396B_ABST
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Abstract

Step 1, determine the hard point value of the steering column axis, rotation axis and steering input shaft; Step 2, draw all points and axis in step 1, and determine the length of the steering column or steering input shaft according to the axis; Step 3, make the limit position boundary of the intermediate shaft; Step 4, find the hard point meeting the requirements by using the bisection method; Step 5, simulate and check the above angle axis by compiling EXCEL small program. The method optimizes the arrangement of the steering input shaft, intermediate shaft and steering column axis, realizes the real-time display of the steering column fluctuation rate by using the EXCEL formula editor, and makes the axis arrangement quickly meet the design requirement that the steering column fluctuation rate is less than 5% by using the bisection method, so that the steering intermediate shaft arrangement is optimized, time and labor are saved.
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