A method and system for dynamic compensation control of following performance in a steer-by-wire system

By performing multi-dimensional signal processing and dual-motor collaborative control on the steer-by-wire system, constructing a scenario-adaptive weight set, and optimizing control parameters, the problem of insufficient following performance of the steer-by-wire system in dynamic driving scenarios is solved, achieving high-precision and stable steering control, and improving driving safety and handling reliability.

CN122078482APending Publication Date: 2026-05-26HANGZHOU XIANGBIN ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU XIANGBIN ELECTRONICS TECH
Filing Date
2026-02-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing steer-by-wire systems suffer from insufficient following performance, steering lag, and unbalanced feel. In particular, they struggle to account for the combined effects of multiple factors in dynamic driving scenarios, resulting in limited control precision. Furthermore, they are susceptible to component aging and changes in road conditions during long-term operation, leading to insufficient handling reliability and safety.

Method used

By collecting multi-dimensional operating signals for filtering and preprocessing, using a dual-threshold judgment model to identify the evolution trend of the operating conditions, combining a dual-motor collaborative control model to generate dual-track evolution information, constructing a scenario-adaptive weight set, using a multi-parameter coupling enhancement mechanism to optimize control accuracy, and using a performance evaluation closed-loop mechanism to iteratively optimize control parameters to achieve dynamic compensation control throughout the entire process.

Benefits of technology

It significantly improves the following response speed and control accuracy of the steer-by-wire system in different scenarios, ensures the continuity and comfort of steering feel, reduces system errors, and enhances driving safety and long-term performance stability.

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Abstract

This invention relates to the field of automotive control technology, and specifically to a dynamic compensation control method and system for the following performance of a steer-by-wire system. The method includes: acquiring multi-dimensional core operating signals and performing filtering and standardization preprocessing to obtain basic feature data; using a dual-threshold judgment model to analyze underperformance conditions and capture the evolution trend of these conditions; analyzing the operating status of the actuators and generating a collaborative evolution trajectory through a dual-motor cooperative control model to obtain dual-track evolution information; combining the dual-track evolution information with system hardware parameters, real-time operating feedback data, and dynamic performance thresholds to obtain a scenario-adaptive weight set; employing a multi-parameter coupling enhancement mechanism to obtain precise control core information; and adapting the system's quantitative indicators and iterative optimization requirements through a performance evaluation closed-loop mechanism to obtain parameter optimization results. This solution optimizes steering control through dual-track evolution information and a scenario-adaptive weight set, thereby improving steering control accuracy.
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