Throttle Valve Drive Calibration Using Standstill Positioning

The patent applies preliminary action by calibrating the characteristic curve at standstill positions before vehicle operation begins. The calibration unit moves the throttle valve to predetermined positions and calibrates the characteristic curve in advance, so that when the vehicle starts, the calibration is already complete or nearly complete. This resolves the contradiction by performing the incomplete calibration portion before operation starts.

The patent implements continuity of useful action by enabling the calibration process to continue across two distinct phases: standstill calibration before operation and operational calibration during driving. The calibration unit can pause calibration at standstill positions and resume during vehicle operation, ensuring that all throttle valve positions are covered over time, thus achieving complete calibration while maintaining operational efficiency.

The patent applies segmentation by dividing the calibration process into two distinct segments: standstill calibration performed when the engine is not running, and operational calibration performed during engine operation. The calibration unit can selectively execute calibration steps in either segment depending on engine state, allowing flexible calibration without disturbing engine control during critical operation phases.

The patent implements periodic action by enabling the calibration unit to perform calibration steps periodically at standstill positions during engine operation. Instead of continuously moving the throttle valve during operation, the system periodically pauses at predetermined positions to perform calibration measurements, thus maintaining engine control stability while still achieving calibration updates during operation.

The patent applies the intermediary principle by introducing a calibration unit as a mediator between the existing throttle valve angle sensor and the BLDC motor control. The calibration unit uses the existing angle sensor data combined with known geometric relationships and calibration procedures to infer rotor position information, eliminating the need for additional current sensors while achieving sufficient precision for control purposes.

The patent applies copying by creating a virtual model of the rotor position based on measurements from the existing throttle valve angle sensor. Instead of directly measuring rotor position with expensive sensors, the system copies the positional information through mathematical relationships and calibration data, achieving accurate enough control without adding hardware complexity.