Steering Control Device Misalignment Detection
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Solution Overview
Problem
In steer-by-wire-based vehicle steering systems, mechanical separation of the steering column and rack modules can lead to misalignment between the steering wheel and vehicle wheel angles, compromising safety and stability.
Innovation Solution
A steering control device and method that includes an overheat detector, alignment determiner, and controller to rapidly detect misalignment, set an initial point, and align the steering wheel and rack displacement using stored steering angle information, ensuring synchronized movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If mechanical separation of steering column and rack modules is implemented in steer-by-wire system, then steering force is reduced and stability is ensured, but misalignment between steering wheel angle and vehicle wheel angle occurs, deteriorating safety
Solution Approach 1:
The steering system is divided into separate steering column module and rack module, allowing independent optimization of each module while maintaining overall system functionality through electronic control
Solution Approach 2:
Alignment detection feedback mechanism is implemented by comparing steering wheel angle from steering column module with vehicle wheel angle from rack module, enabling real-time detection and correction of misalignment to maintain safety
2Reliability
If alignment detection and correction is implemented, then misalignment is rapidly detected and driving stability is secured, but device complexity increases
Solution Approach 1:
The controller performs multiple functions including normal steering control, alignment detection, misalignment determination, and alignment correction using a single integrated system, avoiding the need for separate dedicated alignment correction hardware
Solution Approach 2:
The system automatically detects and corrects its own misalignment conditions without external intervention, using its existing sensors and actuators to perform self-diagnosis and self-correction
Data Source
AI summary
The embodiments of the present disclosure relate to a steering control device and method of a vehicle, specifically, may provide a steering control device and method of a vehicle capable of securing the driving stability by controlling the alignment of the vehicle wheels by rapidly detecting a misalignment between the steering angle of the steering wheel and the steering angle of the vehicle wheel.