Steering Compensation Control for Vehicle Pulling Bias
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle steering control systems struggle to accurately compensate for intrinsic and environmental influences that cause vehicle pulling, leading to biased steering and asymmetric control experiences for drivers.
Innovation Solution
A vehicle system that includes sensors to detect steering angle and torque, a controller to determine stable running states, and a driving unit that uses reference information from past stable states to adjust steering control, accounting for deflection values, steering recovery forces, and environmental factors to minimize pulling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional steering control is used without compensation, then the system is simple and easy to operate, but the vehicle experiences pulling bias and unstable straight-line running
Solution Approach 1:
The system performs preliminary action by storing reference steering torque and steering angle information during stable running states before compensation is needed. This pre-stored data is then used to compensate for pulling phenomena, allowing the system to maintain stability without requiring complex real-time calculations during actual compensation operations.
Solution Approach 2:
The system implements feedback by continuously monitoring current steering torque and steering angle, comparing them against stored reference values from stable running states, and generating compensation torque based on the deviations detected. This closed-loop feedback mechanism enables automatic correction of vehicle pulling while maintaining system simplicity.
2Measurement precision
If steering compensation control is implemented using reference information from stable running states, then steering accuracy is improved, but the system requires complex data processing and storage capabilities
Solution Approach 1:
The system applies taking out by extracting only the essential reference information (steering torque and steering angle data) from stable running states and storing it in memory. This selective extraction of critical data points, rather than storing complete operational datasets, reduces storage requirements and simplifies processing while maintaining measurement precision for compensation purposes.
3Reliability
If the system compensates for both vehicle intrinsic influences and environmental influences, then steering compensation accuracy is improved, but the system requires more sophisticated sensing and control capabilities
Solution Approach 1:
The system applies universality by using the same steering torque sensor and controller for multiple functions: detecting vehicle pulling, storing reference information during stable running, detecting deviations from stable running, and generating compensation torque. This multi-functional approach allows comprehensive compensation for both intrinsic and environmental influences without requiring separate specialized sensors or control systems for each function.
Data Source
AI summary
A vehicle is capable of compensating for steering control based on vehicle's intrinsic factors and environmental influence factors, thereby performing steering compensation control accurately. The vehicle includes: a storage unit; a driving unit to drive a steering device; a sensor to acquire detection signals including a steering angle and a steering torque; and a controller to determine whether the vehicle is in a predetermined stable running state based on the detection signals, wherein, when the vehicle is in the predetermined stable running state, the controller extracts reference information including a relationship between the steering angle and the steering torque at one or more past time points, stores the reference information in the storage unit, and controls the driving unit based on a difference between the reference information and the steering angle and the steering torque.