Vehicle Steering Override Detection With Adaptive Torque Thresholds

The patent applies dynamics by making the torsion-bar-torque threshold variable rather than fixed. The threshold is dynamically adjusted based on detected steering-wheel holding states (one-handed or both-handed) and vehicle traveling states (straight or curved). This dynamic adaptation resolves the contradiction by maintaining operational simplicity while significantly improving override determination accuracy through context-aware threshold selection.

The patent changes the parameter of the torsion-bar-torque threshold from a constant value to a variable value that depends on steering-wheel holding state and traveling state. Four different threshold values are defined corresponding to different combinations of holding states and traveling states. This parameter change enables accurate override detection across varying conditions while keeping the system easy to operate through automatic adaptation.

The patent applies universality by making the controller perform multiple functions: it detects steering-wheel holding state, detects traveling state, selects appropriate threshold values, and performs override determination. By consolidating these functions into a single controller rather than requiring separate dedicated devices for each function, the system achieves high override determination accuracy while minimizing device complexity through functional integration.

The patent merges the threshold storage function with the controller that performs override determination. Instead of having separate memory devices and control units, the threshold values are integrated into the controller's memory, and the selection logic is combined with the override determination logic. This merging reduces overall device complexity while maintaining accurate multi-state threshold adaptation.