Preceding Vehicle Start Notification via Sensor Fusion
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Solution Overview
Problem
Existing driver assistance systems fail to effectively notify drivers of a preceding vehicle's start time, particularly in varying driving environments, as they do not fully consider real-world road conditions.
Innovation Solution
A driving assist apparatus and method that utilizes vehicle sensors to detect the driving state of the host vehicle and external information, including speed, accelerator pedal state, brake pedal state, and transmission gear state, to determine the stop and start states of the preceding vehicle, and notifies the driver of the preceding vehicle's start through a controller connected to the sensors, using communication systems for accurate data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple notification system is used to inform drivers of preceding vehicle start, then the device complexity is reduced, but the reliability of notification accuracy in varying driving environments deteriorates
Solution Approach 1:
The notification system dynamically adjusts its behavior based on detected driving environments. The controller modifies notification timing and parameters according to real-time conditions such as traffic density, road type, and weather, allowing the system to adapt to varying environments without requiring complete system redesign for each scenario
Solution Approach 2:
The system incorporates feedback mechanisms where the controller continuously monitors driving environment parameters and adjusts notification strategies accordingly. By analyzing sensor data about surrounding conditions and comparing against expected patterns, the system refines its notification accuracy while maintaining reasonable complexity through iterative adaptation
2Measurement precision
If multiple sensor parameters are analyzed to determine stop and start states, then the measurement precision of vehicle state detection is improved, but the device complexity increases
Solution Approach 1:
The vehicle state detection process is segmented into distinct functional modules: speed monitoring, accelerator pedal detection, brake pedal detection, and transmission gear detection. Each sensor targets a specific parameter, and the controller processes these segmented inputs independently before integrating them into a comprehensive stop/start state determination, reducing overall system complexity while maintaining high measurement precision
3Speed
If real-time data exchange between sensors and controller is implemented, then the speed of response to preceding vehicle start is improved, but the use of energy increases
Solution Approach 1:
The system implements periodic data exchange between sensors and controller rather than continuous communication. Data is transmitted at optimized intervals based on vehicle state changes and driving conditions, ensuring timely response to preceding vehicle movements while reducing unnecessary energy consumption during steady-state operation
Data Source
AI summary
The present disclosure provides a driving assist apparatus including a host vehicle stop determiner for determining the stop state of a host vehicle, a preceding vehicle stop determiner for determining the stop state of the preceding vehicle, a preceding vehicle start determiner for determining the start of the preceding vehicle after the stop of the preceding vehicle based on a speed change information of the preceding vehicle and a distance change information between the host vehicle and the preceding vehicle, and a start notifier for notifying the start of the preceding vehicle after the stop to a driver of the host vehicle.