Collision Avoidance Steering Assist With Early Driver Notification
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Solution Overview
Problem
Existing vehicle collision avoidance assist systems fail to prompt drivers to initiate collision avoidance steering maneuvers at an early enough stage, often requiring significant steering effort and potentially leading to unsafe collisions.
Innovation Solution
A vehicle collision avoidance assist apparatus that includes an electronic control unit to detect potential collisions and notify drivers through visual and auditory cues, guiding them to perform early collision avoidance steering maneuvers, and assists in steering the vehicle along a calculated avoidance route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the assist steering torque is applied only when the driver starts the steering maneuver, then the system simplicity is maintained, but the driver response time is delayed and collision avoidance effectiveness deteriorates
Solution Approach 1:
The system performs preliminary notification to the driver before the collision risk becomes critical. The notification function alerts the driver in advance that a collision risk is detected, prompting the driver to initiate steering maneuvering earlier. This preliminary action bridges the time gap between risk detection and driver response, allowing the assist steering torque to be applied more effectively when the driver does start maneuvering.
2Loss of time
If the driver is expected to recognize collision risk independently, then the system complexity is reduced, but the timing of steering maneuver initiation is delayed
Solution Approach 1:
The notification function serves as an intermediary between the collision risk detection and the driver's steering maneuver initiation. Instead of directly controlling the steering or relying solely on driver perception, the system introduces a communication intermediary that conveys risk information to the driver, prompting timely action without requiring complex direct control mechanisms.
3Reliability
If great assist steering torque is applied to compensate for late driver response, then the steering effectiveness is maintained, but the system may become unstable and collision avoidance may fail
Solution Approach 1:
By notifying the driver in advance of the collision risk, the system enables the driver to initiate steering maneuvering earlier, which allows the assist steering torque to be applied more gradually and effectively. This prevents the need for sudden, large torque applications that could cause steering instability or driver discomfort, thereby maintaining both safety and ease of operation.
Data Source
AI summary
A vehicle collision avoidance assist apparatus executes a collision avoidance steering maneuvering assist process of applying a steering force to an own vehicle to assist a collision avoidance steering maneuvering carried out by a driver when there is a probability that the own vehicle collides with an object ahead of the own vehicle, and the driver carries out the collision avoidance steering maneuvering to steer the own vehicle to avoid a collision of the own vehicle with the object. The apparatus notifies the driver of a necessity of carrying out the collision avoidance steering maneuvering when determining that there is the possibility that the own vehicle collides with the object ahead of the own vehicle.