MDPS Controller Boost Gain Adjustment for Disturbance Resistance

The patent applies parameter changes by introducing a steering angle-dependent boost gain calculation method. Instead of using a fixed boost gain, the system calculates the boost gain dynamically based on the measured steering angle, allowing the assist torque to adapt to different steering conditions. This resolves the contradiction by enabling disturbance resistance without requiring extensive manual tuning iterations, as the boost gain automatically adjusts according to the steering angle parameter.

The patent implements self-service by enabling the MDPS system to automatically determine the appropriate boost gain based on the measured steering angle, without requiring manual tuning interventions. The system uses the steering angle sensor to detect the current steering state and calculates the corresponding boost gain automatically, making the system self-adjusting and eliminating the need for complex repeated tuning processes to achieve precise steering feel.

The patent applies dynamics by transitioning from a static fixed boost gain to a dynamic boost gain that varies with the steering angle. The control logic remains relatively simple, but the boost gain parameter becomes dynamic, automatically adjusting according to the measured steering angle. This resolves the contradiction by maintaining ease of implementation while significantly improving resistance to disturbances through dynamic parameter adaptation.

The patent applies local quality by making the boost gain specific to different steering angle conditions rather than using a uniform value across all operating conditions. The boost gain is locally optimized for each steering angle range, ensuring that the steering feel remains accurate for the current operating condition while providing appropriate disturbance resistance. This resolves the contradiction by enabling both stability and steering feel accuracy through localized parameter optimization.