Vehicle Route Inversion Control for Automatic Parking Pull-Out
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Solution Overview
Problem
Conventional driving assistance systems face difficulties in efficiently assisting vehicle parking and pulling out, especially in narrow spaces, due to the complexity of reversing maneuvers and potential for unnecessary steering wheel turns.
Innovation Solution
A driving assistance apparatus that includes a teacher data generator to invert the movement route, a position estimator using sensor information, and a vehicle controller for feedback control to guide the vehicle along the inverted target route, enabling precise automatic travel from the end point to the start point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle travels along the movement route from start point to end point, then the driving operation is simple, but the route cannot be used for reverse maneuvers (parking/pulling out)
Solution Approach 1:
The patent inverts the movement route generated during teacher traveling to create a target route for automatic traveling. The inversion transforms the route from start point to end point into a route from end point to start point, enabling the same recorded route to be used for reverse maneuvers such as parking and pulling out operations
2Device complexity
If feedback control is not performed, then the control system is simple, but the vehicle deviates from the target route due to position estimation errors
Solution Approach 1:
The patent implements feedback control by continuously comparing the actual vehicle position (estimated by the position estimator) with the target position on the inverted target route, and adjusting the vehicle's traveling through the vehicle controller to maintain accurate following of the target route
Data Source
AI summary
A driving assistance apparatus for assisting driving of a vehicle. The driving assistance apparatus includes a teacher data generator that stores a movement route traveled by the vehicle according to the user's driving operation in a teacher traveling mode, and generates teacher data related to a target route generated by inverting the movement route; a position estimator that estimates the vehicle current position based on sensor information from a peripheral sensor monitoring the surrounding environment of the vehicle; and a vehicle controller that feedback controls the vehicle based on the vehicle current position estimated by the position estimator and each of target positions on the target route so that the vehicle travels along the target route when an execution command for an automatic traveling mode is received from the user.