Steering System Error Angle Sensor Feedback Control
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Solution Overview
Problem
Existing steering systems face challenges in accurately measuring and controlling the steering angle of wheels, leading to discrepancies between intended and actual steering inputs, especially when external forces cause deviations from the initial position.
Innovation Solution
A steering system that includes a sensor to measure the error angle of the wheel with respect to a preset initial position, a controller to calculate the control steering angle based on the error angle and steering signal, and a steering actuation portion to generate the necessary steering force, ensuring accurate wheel alignment and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is added to measure error angle, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical measurement mechanisms with a sensor-based detection system. The sensor (optical, magnetic, or capacitive type) substitutes for traditional mechanical angle sensors, reducing mechanical complexity while improving measurement precision through electronic detection of the error angle between actual and initial wheel positions.
Solution Approach 2:
The patent introduces an intermediary controller that processes sensor signals and calculates the error angle. This controller acts as a mediator between the sensor and the steering actuation system, enabling precise measurement and control without directly increasing the complexity of the mechanical steering components.
2Reliability
If error angle measurement is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback control system where the sensor continuously measures the error angle and feeds this information back to the controller. The controller adjusts the steering actuation based on the measured error, creating a closed-loop system that improves reliability by automatically compensating for deviations from the initial wheel position.
Solution Approach 2:
The steering system performs self-correction by using the measured error angle to automatically adjust the wheel position. The system serves itself by detecting and correcting its own deviations without external intervention, improving reliability while keeping the control logic integrated within the existing system.
3Ease of operation
If steering actuation portion is added to generate steering force, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent replaces manual mechanical steering operation with an automated steering actuation portion that uses motors or actuators. This substitution improves ease of operation by enabling automated wheel positioning based on sensor feedback, while the actuation mechanism integrates with existing steering linkages to minimize overall system complexity.
Data Source
AI summary
A steering system includes a fixing part connected to a frame, a wheel part into which a part of the fixing part is inserted to perform a relative motion and on which a wheel is provided, and a sensor provided between the wheel part and the fixing part and measuring an error angle of the wheel part with respect to a preset initial position of the wheel part.