Corner Brake Timing Guidance for Driving Assistance
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Solution Overview
Problem
Existing driving assistance systems only display "BRAKE" when the vehicle's speed exceeds the required entry speed for a corner, failing to inform the driver of the appropriate timing to start the brake operation to match the target traveling pattern.
Innovation Solution
A driving assistance system that includes a notification device and a control device, which sets a target completion position, vehicle speed, deceleration, and start timing for the brake operation based on a target traveling pattern, and controls the notification device to prompt the driver with a brake ON notification at the set start timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only a simple brake notification is displayed when vehicle speed exceeds the required entry speed, then the notification system remains simple, but the driver cannot recognize the appropriate timing to start brake operation
Solution Approach 1:
The system calculates and notifies the driver in advance of the optimal brake start timing based on the target traveling pattern. The notification is provided before the driver needs to act, allowing the driver to start the brake operation at the correct moment to achieve the target vehicle speed at the corner entry point.
Solution Approach 2:
The system provides feedback to the driver about when to initiate brake operation by comparing current vehicle speed and position with the target traveling pattern. The notification device informs the driver of the optimal brake start timing, enabling the driver to adjust their braking action to match the target pattern.
2Manufacturing precision
If the system provides detailed brake timing guidance, then the driver can enter the corner at the correct speed, but the control system becomes more complex
Solution Approach 1:
The system uses the target traveling pattern data (which already contains optimal brake timing information) to generate notifications without requiring complex real-time calculations. The notification device simply retrieves and presents the pre-determined brake start timing from the stored target pattern, reducing control system complexity while maintaining speed control precision.
Data Source
AI summary
On the basis of a target completion position as a position for completing an ON operation of a brake in front of a corner of a predetermined traveling course in a predetermined traveling course, a target completion vehicle speed as a target completion position in the target traveling pattern, a target deceleration as a deceleration at the target completion position in the target traveling pattern, and a vehicle speed of the vehicle, a start timing for starting an ON operation of the brake so that the vehicle speed is reduced to the target completion position at the target deceleration and becomes the target completion vehicle speed at the target completion position is set, and the notification device controls the notification device to perform a brake ON notification which is a notification for prompting the ON operation of the brake at the set start timing.