Collision Prevention Apparatus Adjusting Braking Time Point
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Solution Overview
Problem
Current vehicle driving apparatuses lack an effective method to adjust and control the braking time point of a vehicle to prevent collisions, especially in situations where the driver does not intervene promptly, such as in congested areas or when the driver is fatigued.
Innovation Solution
A collision prevention apparatus and method that includes an information acquisition module to capture vehicle and nearby vehicle state information, a collision risk determiner to assess collision risks, a driving intervention determiner to evaluate driver engagement, and a collision prevention controller to adjust the braking time point based on these determinations, generating alerts and controlling driver assistance systems to ensure timely braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver is relied upon to respond to collision risks, then the driver's reaction time determines the braking time point, but the driver may not intervene promptly especially when fatigued or in congested areas
Solution Approach 1:
The system performs preliminary assessment of driver state (fatigue, attention level) and preliminary identification of collision risks before actual collision occurs. The controller proactively adjusts the braking time point based on predicted driver response capability, rather than waiting for driver reaction. This allows the system to prepare and execute braking earlier, compensating for delayed driver intervention.
Solution Approach 2:
The collision prevention controller acts as an intermediary between the driver and the braking system. It monitors driver state and collision risk independently, then mediates the braking decision by adjusting the braking time point. This intermediary function allows the system to override or supplement driver reaction, ensuring timely braking even when driver response is delayed.
2Reliability
If the braking time point is adjusted earlier to prevent collision, then collision prevention capability is improved, but unnecessary braking may occur reducing driving efficiency
Solution Approach 1:
The system applies different assessment criteria and adjustment strategies based on local conditions. It evaluates driver state (fatigue level, attention) and contextual factors (congestion level, distance to obstacle) to determine the appropriate braking time point adjustment. This localized, conditional approach ensures braking is adjusted only when and where necessary, avoiding unnecessary interventions that would reduce driving efficiency.
Solution Approach 2:
The braking time point adjustment is dynamic rather than fixed. The controller continuously monitors driver state and environmental conditions, adjusting the braking time point in real-time. When driver alertness is high and conditions are safe, the system maintains normal braking timing. When risk factors are detected (driver fatigue, congestion, reduced time to collision), the system dynamically advances the braking time point only to the extent necessary for safety.
3Measurement precision
If the system monitors driver state and environmental conditions continuously to adjust braking time point, then collision risk detection accuracy is improved, but system complexity increases
Solution Approach 1:
The domain control unit serves multiple functions: it processes state information from the information acquisition module, determines collision risk, assesses driver intervention state, adjusts braking time point, and controls the braking system. By consolidating these functions in a single multi-functional controller, the system achieves high measurement precision without proportionally increasing overall system complexity.
Solution Approach 2:
The system merges the collision risk determination, driver state assessment, and braking control functions into an integrated control process. The information acquisition module, domain control unit, and braking system work as a unified chain, where data flow and control decisions are combined in a single decision-making pathway. This integration reduces the complexity that would arise from multiple separate systems while maintaining comprehensive monitoring capabilities.
Data Source
AI summary
The present embodiments relate to a collision prevention apparatus and method, and a driving support apparatus. The collision prevention apparatus may comprise: a collision risk determiner that determines a collision risk of a vehicle, a driving intervention determiner that determines driving intervention of a driver, and a collision prevention controller that controls a collision risk alert according to a result of determination on a collision risk of the vehicle, and adjusts a braking time point of the vehicle according to a result of determination on driving intervention of the driver.