Parking Exit Assist Steering Angle Neutralization
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Solution Overview
Problem
Existing parking exit assist devices can cause vehicles to steer incorrectly after assist control ends, leading to potential collisions or lane deviations, as the steering angle varies based on the path taken during assist control, making it difficult for drivers to recognize the vehicle's state and ensuring safety.
Innovation Solution
A parking exit assist device with a front detection unit, target steering angle setting unit, assist control unit, and exit-from-parking possibility determination unit that changes the steering angle to a neutral or neutral neighboring angle when exit is possible, allowing drivers to easily recognize the vehicle state and ensuring safety by preventing incorrect steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the steering angle is increased relative to the target steering angle during assist control, then the vehicle can complete the pulling out maneuver, but the vehicle may deviate from the correct path and cause safety issues
Solution Approach 1:
The system performs preliminary actions by automatically adjusting the steering angle to a neutral or neutral neighboring angle before the driver takes over control. This preliminary adjustment ensures the vehicle is positioned correctly and the steering is in a safe state, preventing potential deviations that would occur if the driver inherited a non-neutral steering angle from the assist control process
Solution Approach 2:
The system determines whether exit from parking is possible based on detection results, and uses this feedback to decide whether to adjust the steering angle to neutral. This feedback mechanism ensures that the steering angle is only adjusted when it is safe to do so, maintaining both pulling out efficiency and driving safety
2Adaptability or versatility
If the steering angle varies based on the path traveled during assist control, then the assist control can adapt to different parking scenarios, but the driver cannot correctly recognize the vehicle state after assist control ends
Solution Approach 1:
The system extracts the steering angle adjustment function from the overall assist control process. Specifically, it separates the path-adaptive assist control from the final steering state, ensuring that regardless of the path taken, the steering angle is reset to a predictable neutral state that the driver can easily recognize
Solution Approach 2:
The system changes the steering angle parameter from a path-dependent variable to a fixed neutral value (or neutral neighboring angle) before transferring control to the driver. This parameter change ensures that the final steering state is consistent and recognizable, while still allowing the assist control to adapt to different parking scenarios through other means
Data Source
AI summary
This assist device for pulling out of a parking spot includes: an assist control unit for performing assist control to change the steering angle of a vehicle to a target steering angle; and a pulling out possibility determination unit for determining whether or not the vehicle can pull out on the basis of the detection result of a forward obstacle detected by forward detection unit. If it is determined that the vehicle can pull out, the assist control unit performs assist control to change the steering angle of the vehicle from the target steering angle to a neutral angle or a neutral vicinity angle.