Parking Assist Speed Control via Driver Interface Feedback
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Solution Overview
Problem
Automatic parking assist systems (APAS) do not adequately reflect the driver's intention for parking speed control, leading to inconvenience during automatic parking.
Innovation Solution
A parking assist apparatus and method that includes a controller to monitor and control vehicle speed based on driver input, using sensors and a vehicle speed control profile to adjust engine torque and braking, ensuring the vehicle speed aligns with the driver's intention, and includes features for creep driving, obstacle detection, and re-entry into speed control mode after stopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the APAS controls vehicle speed automatically without reflecting driver's intention, then the automation level is improved, but the driver convenience deteriorates
Solution Approach 1:
The system introduces feedback mechanisms by detecting driver interface operations (accelerator/brake inputs) during automatic parking and adjusting vehicle speed control accordingly. The controller continuously monitors driver intentions and modifies the automated speed control to reflect these inputs, creating a closed-loop system that adapts to driver preferences while maintaining automation.
Solution Approach 2:
The system dynamically adjusts the level of automation based on driver input. When the driver operates the accelerator or brake, the controller modifies the speed control behavior in real-time, transitioning from fully automated control to a more interactive mode that respects driver intentions, thereby maintaining both automation and driver convenience.
2Manufacturing precision
If the APAS controls vehicle speed according to fixed profile, then the control precision is improved, but the adaptability to driver intention deteriorates
Solution Approach 1:
The system uses a dynamic speed control profile that is adjusted in real-time based on driver interface operations. While a base speed control profile provides the precision needed for safe parking, the controller modifies this profile dynamically when detecting accelerator or brake inputs from the driver, allowing the system to adapt to driver intentions while maintaining controlled precision.
Solution Approach 2:
The system changes speed control parameters (such as target speed, acceleration rates, and deceleration rates) based on detected driver operations. When the driver presses the accelerator or brake, the controller adjusts these parameters to reflect the driver's desired speed changes, enabling the system to maintain precision while adapting to varying driver intentions.
Data Source
AI summary
A parking assist apparatus includes a parking switch for instructing an execution or a release of a parking assist function, a sensor for searching a parking slot, and a controller for searching the parking slot using the sensor when the parking switch is turned on, entering a vehicle speed control mode to check an interface operation by a driver, controlling vehicle speed according to the interface operation, and performing a parking assist.