Vehicle Blind Area Detection and Driver Intent Deceleration
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Solution Overview
Problem
Conventional driving assistance systems, such as autonomous emergency braking systems, often intervene in vehicle control based on predicted potential risks before a pedestrian emerges from a blind area, leading to driver discomfort due to lack of reflection of the driver's intentions and potential mismatch in risk perception between the system and the driver.
Innovation Solution
A driving assistance control apparatus that includes a blind area detector, a driving operation detector, and an electronic control unit, which performs automatic deceleration only after considering the driver's operations, such as braking or steering, to align with the driver's intentions and reduce feelings of strangeness, while also providing risk presentation to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system executes deceleration or steering before a pedestrian emerges from a blind area based on predicted potential risk, then collision avoidance reliability is improved, but driver discomfort increases due to lack of reflection of driver's intentions
Solution Approach 1:
The system continuously monitors driving operations (accelerator pedal depression, brake pedal depression, steering wheel angle) and uses this feedback to determine whether to execute deceleration control. When the driver's operations indicate acceptance of the potential risk (e.g., maintaining accelerator depression without braking), the system refrains from autonomous deceleration, thereby aligning machine action with driver intention and reducing discomfort.
Solution Approach 2:
The system dynamically adjusts its intervention strategy based on real-time driving conditions and driver behavior. Instead of a fixed rule-based approach, the deceleration control execution is flexible and adapts to the driver's instantaneous intentions, allowing the system to transition between autonomous action and driver-respected inaction based on operational context.
2Measurement precision
If the system obtains and analyzes information about the surrounding environment, then detection accuracy is improved, but response time is reduced when a pedestrian suddenly emerges from a blind area
Solution Approach 1:
The system performs preliminary detection and identification of blind areas before a pedestrian actually emerges. By pre-identifying high-risk zones where pedestrians may suddenly appear, the system prepares for potential collision scenarios in advance, reducing the critical response time needed when a pedestrian actually emerges from these pre-identified blind areas.
3Loss of information
If the system presents risk information to the driver, then driver awareness is improved, but system complexity increases
Solution Approach 1:
The system uses the driver's existing driving operations (accelerator and brake pedal depression, steering wheel angle) as intermediaries to infer driver awareness and intention. Rather than implementing complex communication interfaces to convey risk information, the system leverages the driver's natural operational inputs as signals of their risk perception and decision-making, simplifying the overall system architecture.
Data Source
AI summary
A driving assistance control apparatus of a vehicle includes a blind area detector, a driving operation detector, and an electronic control unit. The blind area detector is configured to detect the presence or absence of a blind area as seen from the vehicle in a traveling direction of the vehicle. The driving operation detector is configured to detect driving operation of the driver. The electronic control unit is configured to perform automatic deceleration control of the vehicle based on detection of the presence of the blind area by the blind area detector. The electronic control unit is configured to start the automatic deceleration control, by referring to the driving operation of the driver after detection of the presence of the blind area by the blind area detector.