Vehicle Control Apparatus Using Relative Speed and Distance

The patent implements feedback by continuously monitoring the actual traveling speed of the own vehicle and comparing it with the target speed calculated from object speed and distance. The calculation unit adjusts the target speed based on the difference between actual and target speed, creating a closed-loop control system that improves speed measurement precision and control accuracy without requiring complex additional hardware.

The patent replaces direct mechanical speed sensing with a calculation-based approach. Instead of relying solely on mechanical speed sensors, the system calculates target speed using the formula: target speed = object speed + (distance difference × weight coefficient), substituting mechanical measurement with computational methods to achieve higher precision.

The patent changes parameters by incorporating multiple variables (object speed, distance to object, relative speed) into the target speed calculation. The calculation unit uses the comprehensive formula that considers all these parameters simultaneously, allowing precise control of vehicle behavior by adjusting target speed based on the combined effect of multiple changing parameters rather than relying on a single parameter.

The patent segments the speed control function into distinct calculation components: object speed detection, distance measurement, relative speed calculation, and target speed synthesis. Each component is handled by specific units (specification unit, calculation unit), dividing the complex calculation task into manageable segments that can be processed independently and then integrated.

The patent implements self-service by enabling the calculation unit to automatically prioritize and process multiple objects independently. Each object's target speed is calculated separately based on its own parameters (speed, distance, relative speed), and the system autonomously determines the lowest target speed without requiring external intervention or complex sequential processing, thus maintaining safety while reducing response time.

The patent applies partial action by calculating target speeds for multiple objects but implementing control based on the lowest target speed only. This selective approach processes information for all detected objects (excessive calculation) but applies control action only for the most critical case (partial control), ensuring safety by considering all objects while maintaining fast response time by acting on the single most restrictive constraint.