Steering Assist Device Lateral Speed Zero Control
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Solution Overview
Problem
Existing steering assist devices do not adequately address the situation where a vehicle excessively approaches another vehicle after a lane change assist control has been initiated, leading to potential collisions and safety concerns.
Innovation Solution
A steering assist device that includes surrounding monitoring means, lane recognition, lane change assist control, and notification means to stop the lane change assist control when an approaching vehicle is detected, and performs original lane return assist control to prevent collisions, while prioritizing driver steering operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lane change assist control is started to enable automatic lane changing, then ease of operation is improved, but safety deteriorates when other vehicles excessively approach the own vehicle after control starts
Solution Approach 1:
The system continuously monitors surrounding vehicles during lane change assist control and provides feedback by detecting when another vehicle excessively approaches the own vehicle. This feedback triggers automatic cancellation of the lane change control and notification to the driver, resolving the safety issue while maintaining ease of operation through automated monitoring and intervention.
2Productivity
If lane change assist control continues to be performed to complete the lane change maneuver, then productivity is improved, but harmful factors increase due to potential collision with approaching vehicles
Solution Approach 1:
The system takes preliminary anti-action by continuously monitoring for approaching vehicles during lane change assist control and canceling the control operation before a collision can occur. The notification to the driver provides additional warning, allowing the driver to take manual control and avoid the harmful effect of collision while minimizing disruption to the lane change productivity.
3Reliability
If surrounding monitoring is enhanced to detect approaching vehicles, then safety is improved, but device complexity increases
Solution Approach 1:
The surrounding monitoring means is designed to perform multiple functions: detecting other vehicles during lane change assist control, identifying when vehicles excessively approach the own vehicle, and providing data for control cancellation decisions. This multi-functionality improves safety without proportionally increasing device complexity by maximizing the utility of existing monitoring components.
Data Source
AI summary
A steering control device includes a driving support ECU. The driving support ECU 10 is configured to execute an original lane return assist control to control a steering so as to return an own vehicle from a target lane to the original lane when a lane change assist control is stopped by detection of a first approaching vehicle in a situation where the own vehicle enters the target lane to travel in the target lane. The driving support ECU is configured to prohibit the original lane return assist control and to execute a lateral speed zero control to control the steering so as to maintain a lateral speed which is a speed in a lane width direction of the own vehicle at zero, when an original lane side vehicle is being detected.