Automatic Parking Control Using Driver Feedback on Travelable Region
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Solution Overview
Problem
Conventional automatic parking systems may cause discomfort to drivers due to frequent interventions required when the vehicle approaches obstacles, as the travelable region is not adjusted based on driver sensibility and sensor limitations, leading to repeated brake and steering operations.
Innovation Solution
A vehicle control device that includes an obstacle detection unit, travelable region setting unit, route generation unit, and automatic parking execution unit, which adjusts the travelable region and route based on driver operation intervention information to reduce the need for driver intervention during automatic parking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the travelable region is determined based on sensor information (camera and ultrasonic sensor), then the automatic parking control can be implemented, but the calculated travelable region may not match driver's sensibility causing discomfort
Solution Approach 1:
The system monitors driver operations (accelerator, brake, steering) during automatic parking and uses this feedback to dynamically adjust the travelable region. When the driver operates the brake or accelerator, the system interprets this as feedback indicating the calculated travelable region does not match driver expectations, and subsequently adjusts the region to prevent similar discomfort in future parking maneuvers.
Solution Approach 2:
The system changes the parameters of the travelable region (boundary positions, allowable distance to obstacles) based on detected driver operations. By modifying these parameters in response to driver feedback, the system adapts the automated parking behavior to match driver sensibility while maintaining automation.
2Extent of automation
If the travelable region is set based on sensor information without driver feedback, then the automatic parking route can be generated, but the vehicle may approach obstacles too closely causing repeated driver interventions
Solution Approach 1:
The system uses driver operations as feedback signals to assess whether the current travelable region settings are appropriate. When drivers intervene by operating brakes or accelerators, this feedback triggers recalculation of the travelable region to ensure safer distances from obstacles, thereby improving reliability without reducing automation.
Solution Approach 2:
The system performs preliminary adjustment of the travelable region by incorporating driver operation history before generating the parking route. By anticipating potential driver concerns based on previous operations, the system pre-adjusts the travelable region to prevent problematic situations, reducing the need for corrective driver interventions.
3Extent of automation
If the travelable region is not adjusted based on driver intervention, then the automatic parking system maintains consistent automation, but driver interventions increase frequency reducing operability
Solution Approach 1:
The system dynamically adjusts the travelable region during and between automatic parking operations based on driver feedback. This dynamic adaptation allows the system to maintain high automation while improving efficiency by learning from driver preferences and preventing repeated interventions through continuous optimization of the travelable region parameters.
Data Source
AI summary
A vehicle control device, which reduces intervention in automatic parking by a driver, includes a processor and a memory, that control the vehicle to a target parking position. The vehicle control device includes an obstacle detection unit detecting a position of an obstacle around the vehicle, a travelable region setting unit that determines a region where the vehicle may travel based on the position of the obstacle, and sets the target parking position within the travelable region, a route generation unit that calculates a travel route to the target parking position within the travelable region, and an automatic parking execution unit that causes the vehicle to automatically travel toward the target parking position. When a driver intervenes during the automatic traveling, the route generation unit stores vehicle state information at the time of the intervention, and resets the travelable region based on the driver operation intervention information.