Parking Assist Speed Pattern Selection for Object Awareness
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Solution Overview
Problem
Existing parking assist apparatuses do not adequately consider the environmental conditions around a vehicle, leading to driver discomfort, especially when multiple objects or moving objects are present, as they primarily set upper limit speeds based on distance without adjusting for other situational factors.
Innovation Solution
A parking assist apparatus that generates multiple speed patterns based on the position and time on a traveling route, including standard and low speed patterns, and selects the appropriate pattern based on the distance to objects, the number of objects, and whether they are moving, to control vehicle travel and notify the driver of low-speed controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same travel control is performed regardless of object characteristics, then the control system is simple, but driver discomfort increases when multiple or moving objects are present
Solution Approach 1:
The patent applies dynamics by making the travel control adaptable and changeable based on detected object characteristics. The control system dynamically adjusts travel speed and patterns according to the number of objects and their movement states, transforming a static control system into a dynamic one that responds to environmental changes, thereby improving driver comfort without excessive complexity increase
Solution Approach 2:
The patent changes control parameters (travel speed, acceleration, deceleration rates) based on detected object conditions. When multiple objects or moving objects are detected, the system modifies speed parameters to reduce driver discomfort, implementing parameter changes that adapt the control characteristics to the specific situation
2Adaptability or versatility
If upper limit speed is set only according to distance, then the control is simple, but travel control according to other object situations is insufficient
Solution Approach 1:
The patent segments the travel control into multiple speed patterns (first speed pattern for normal conditions, second speed pattern for crowded conditions, third speed pattern for moving object conditions). By dividing the control into distinct patterns, each optimized for specific situations, the system achieves high adaptability while managing complexity through modular pattern selection rather than continuous complex calculations
Solution Approach 2:
The system dynamically selects among multiple pre-defined speed patterns based on real-time object detection results. This dynamic pattern selection allows the system to adapt to different situations (single object, multiple objects, moving objects) by choosing the appropriate pre-prepared speed pattern, balancing adaptability with computational efficiency
Data Source
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AI summary
A parking assist apparatus that causes a vehicle to be parked in a target parking position generates a traveling route of a vehicle M from a parking travel start position P0 to a target parking position P2 (S12); generates a plurality of speed patterns having different speeds when the vehicle travels on the traveling route (S 14); selects a target speed pattern from the plurality of speed patterns based on information of an object around the traveling route (S 18); and controls the traveling of the vehicle M based on the target speed pattern (S24).