Parking Assist Restart Control at Direction Switching Points
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Solution Overview
Problem
Existing parking assistance devices require driver intervention for shifting gears and operating pedals, leading to discomfort during direction changes, as they do not automatically restart control after reaching a traveling direction switching position.
Innovation Solution
A parking assistance device that includes an information acquisition unit and a parking assistance electric control unit, which notifies the driver of necessary operations and monitors their compliance, allowing for automatic restart of parking assistance control when the driver stops the brake pedal, enabling seamless continuation of parking or unparking processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle automatically restarts parking assistance control after reaching a traveling direction switching position, then the productivity of parking operation is improved, but the driver may feel uncomfortable due to sudden start
Solution Approach 1:
The notification unit notifies the driver in advance before the vehicle automatically restarts parking assistance control after reaching a traveling direction switching position. This preliminary notification allows the driver to prepare mentally and physically, reducing discomfort from sudden movement while maintaining efficient automatic operation.
2Reliability
If the parking assistance control requires driver operation for shift lever and brake pedal, then the reliability of control is improved, but the ease of operation deteriorates
Solution Approach 1:
The vehicle system automatically monitors whether the driver has performed the required operations (shift lever movement, brake pedal operation) and automatically restarts parking assistance control when conditions are met, reducing the burden on the driver while maintaining reliable control through automated monitoring and execution.
Solution Approach 2:
The notification unit provides feedback to the driver about the vehicle's status and required operations, while the control system monitors driver actions and provides appropriate notifications or automatic responses, creating a closed-loop system that maintains reliability while improving ease of operation.
3Ease of operation
If the vehicle waits for driver operation confirmation before restarting, then the ease of operation is improved, but the loss of time increases
Solution Approach 1:
The system notifies the driver in advance of upcoming automatic restart conditions, allowing the driver to prepare without delaying the operation. The notification is provided before the actual restart occurs, balancing driver comfort with time efficiency.
Solution Approach 2:
The parking assistance control is designed to restart automatically as soon as the driver completes the required operations, minimizing interruption time and maintaining continuous progress toward the parking goal while still allowing driver involvement.
Data Source
AI summary
A parking assistance device performs parking assistance control including steering angle control for changing a steering angle of a vehicle, driving force control for controlling a driving force of the vehicle, and braking force control for controlling a braking force of the vehicle. The parking assistance device notifies an occupant of a driving operation to be performed by the occupant, including a moving operation on a shift lever and an operation on a brake pedal when the vehicle reaches a switching position where a traveling direction of the vehicle is to be switched during performing the parking assistance control. When the driving operation is performed by the occupant, the parking assistance device restarts the parking assistance control at a timing when the occupant stops the operation on the brake pedal.