Vehicle Control Device Blind Spot Mode Switching
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Solution Overview
Problem
Vehicle control systems in automatic driving mode may cause occupant discomfort when unexpected maneuvers are required to avoid collisions with non-host vehicles in blind spots, leading to a need for improved discomfort suppression while ensuring safety.
Innovation Solution
A vehicle control device that switches from automatic driving mode to driver involvement mode when a traveling plan to avoid a collision in a blind spot is likely to cause discomfort, using a blind spot boundary specifying unit, traveling plan generation unit, determination unit, and switching unit to assess and manage potential collisions, with optional notification to the driver and re-evaluation at additional determination positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the vehicle switches to driver involvement mode when a traveling plan to avoid collision is likely to cause discomfort, then occupant discomfort is suppressed, but device complexity increases due to additional determination and switching mechanisms
Solution Approach 1:
The system performs preliminary determination of whether mode switching is necessary before actually switching modes. The determination unit evaluates predetermined conditions (speed, acceleration, yaw rate thresholds) in advance to predict potential occupant discomfort, allowing the switching unit to proactively transition to driver involvement mode before uncomfortable maneuvers occur, thereby suppressing discomfort while managing complexity through structured evaluation
Solution Approach 2:
The system implements feedback by continuously monitoring traveling plan parameters (speed, acceleration, yaw rate) against predetermined thresholds and using this information to dynamically adjust the driving mode. The determination unit provides feedback signals to the switching unit based on whether conditions are met, creating a closed-loop control system that suppresses occupant discomfort through real-time adaptation without requiring overly complex open-loop control mechanisms
2Reliability
If the vehicle frequently switches to driver involvement mode to ensure safety, then collision avoidance is improved, but ease of operation deteriorates due to unexpected mode changes
Solution Approach 1:
The system applies preliminary anti-action by anticipating situations that would cause occupant discomfort and preemptively switching to driver involvement mode before unexpected maneuvers occur. The determination unit evaluates whether traveling plans meet predetermined conditions (excessive speed, acceleration, or yaw rate) and triggers mode switching in advance, preventing the harmful effect of unexpected automatic driving maneuvers while maintaining reliable collision avoidance
Solution Approach 2:
The system uses parameter changes by monitoring specific physical quantities (speed, acceleration, yaw rate) against predetermined thresholds to determine when mode switching is necessary. By changing the driving mode based on these parameter evaluations rather than arbitrary conditions, the system ensures reliable collision avoidance while minimizing unnecessary mode changes that would disrupt driver operation smoothness
3Ease of operation
If the vehicle maintains automatic driving mode to improve ease of operation, then driver involvement is reduced, but object-generated harmful factors increase due to unexpected maneuvers causing discomfort
Solution Approach 1:
The system implements feedback by continuously evaluating traveling plan parameters (speed, acceleration, yaw rate) against predetermined thresholds and using this information to dynamically adjust the driving mode. When conditions indicate likely occupant discomfort, the determination unit signals the switching unit to transition from automatic to driver involvement mode, creating a closed-loop control that maintains automatic driving convenience while suppressing harmful discomfort effects
Solution Approach 2:
The system performs preliminary determination of whether mode switching is necessary before actually switching modes. By evaluating predetermined conditions in advance and proactively transitioning to driver involvement mode when thresholds are exceeded, the system prevents unexpected uncomfortable maneuvers while maintaining automatic driving mode during normal operations, thereby preserving convenience while eliminating harmful discomfort
Data Source
AI summary
A vehicle control device controlling a vehicle capable of switching between an automatic driving mode and a driver involvement mode in which a driver is involved includes a blind spot boundary specifying unit configured to specify a boundary of a region becoming a blind spot of the vehicle, a traveling plan generation unit configured to generate a traveling plan in which the vehicle does not collide with a moving body assumed to be positioned on the blind spot boundary specified by the blind spot boundary specifying unit, a determination unit configured to determine whether or not the traveling plan generated by the traveling plan generation unit satisfies a predetermined condition, and a switching unit configured to switch the vehicle from the automatic driving mode to the driver involvement mode when the determination unit determines that the traveling plan satisfies the predetermined condition.