Steer-by-Wire Steering Slip Detection for Angle Misalignment
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Solution Overview
Problem
Mechanical separation between the steering column module and the steering rack module in steer-by-wire-based vehicle steering devices leads to misalignment between the steering angle of the steering wheel and the rotation angle of the steering motor, compromising vehicle safety.
Innovation Solution
A vehicle steering control device and method that detects a slip state by calculating the angle difference between the steering angle and the rotation angle, determines a slip state based on driving conditions, and controls the pulley of the steering motor to release the slip state, thereby maintaining driving safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mechanical separation is implemented between the steering column module and the steering rack module in steer-by-wire-based vehicle steering devices, then the ease of manufacture and device flexibility are improved, but misalignment occurs between the steering angle of the steering wheel and the rotation angle of the steering motor, deteriorating the safety of vehicle driving
Solution Approach 1:
The patent implements a feedback mechanism by continuously monitoring the angle difference between the steering wheel and steering motor through sensors and calculators. When misalignment is detected, the system automatically generates correction signals to adjust the steering motor position, ensuring real-time synchronization and maintaining driving safety despite mechanical separation.
Solution Approach 2:
The patent replaces direct mechanical connection with an electronic control system. Instead of relying on pure mechanical linkage between the steering column and rack modules, the system uses electronic sensors, controllers, and actuators to maintain angular synchronization, substituting mechanical precision requirements with electronic measurement and control.
2Reliability
If angle difference calculation and slip detection are continuously performed, then the reliability and detection precision are improved, but the use of energy and computational complexity increase
Solution Approach 1:
The patent dynamically adjusts monitoring parameters based on vehicle operating conditions. The control device modifies the frequency and threshold of angle difference calculations according to driving state, reducing computational load and energy consumption during normal operation while maintaining high detection precision when slip conditions are suspected or during critical maneuvers.
Data Source
AI summary
The disclosure relates to a vehicle steering control device and method. There may be provided a vehicle steering control device and method that may detect a slip state of the steering wheel according to the driving state when misalignment occurs between the steering angle of the steering wheel and the rotation angle of the steering motor and performs control to release the slip state, thereby securing driving safety.