Parking Support Device Stop Brake Control
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Solution Overview
Problem
Drivers experience anxiety due to the risk of the vehicle starting to move unintentionally before automatic parking control is initiated, as they may unintentionally reduce brake pressure while focusing on the parking area display.
Innovation Solution
A parking support device that maintains the vehicle in a stopped state through stop brake control from the moment parking conditions are met until the driver confirms the parking consent operation, ensuring the vehicle remains stationary even if the driver unintentionally reduces brake pressure, thereby preventing unnecessary movement and anxiety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the driver focuses on the parking area image on the display device, then the driver can confirm the target parking area, but the driver may unintentionally reduce brake pressure causing the vehicle to move
Solution Approach 1:
The control device applies stop brake control in advance during the period from when parking conditions are satisfied to when the driver operates the decision button. This preliminary application of brake force prevents the vehicle from moving due to unintended brake pressure reduction, while the driver simultaneously views the parking area image on the display device.
Solution Approach 2:
The system performs the brake application action before the driver completes the parking consent operation. By establishing stop brake control during the display period, the system ensures the vehicle remains stationary even if the driver reduces brake pressure while focusing on the parking area information.
2Productivity
If the driver operates the decision button to start automatic parking control, then the parking operation is initiated, but the vehicle may start moving before the driver is ready
Solution Approach 1:
The control device continuously monitors brake pedal operation amount during the period when the parking area image is displayed. By detecting changes in brake pressure in real-time and maintaining stop brake control when necessary, the system provides feedback-based protection against unintended vehicle movement while the driver reviews the parking area.
3Reliability
If the driver keeps foot on the brake pedal to prevent vehicle movement, then the vehicle remains stationary, but the driver cannot easily adjust or release the brake when needed
Solution Approach 1:
The control device automatically maintains stop brake control during the parking confirmation period without requiring continuous driver input. The system self-regulates the brake application based on the operational state, freeing the driver from the need to maintain constant brake pressure while still ensuring vehicle stability.
Data Source
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AI summary
A parking support device 10 comprises a display device 70 and a control device 20. When the control device determines a parking request operation is performed, the control device displays a parking area image 300. When the control device determines that a parking start condition, which is satisfied when the parking request operation is performed and the vehicle stops, has been satisfied, the control device starts a stop brake control required to cause the vehicle not to move. When the control device determines that a parking consent operation has been performed after the parking start condition became satisfied, the control device finishes the stop brake control and starts an automatic parking control for controlling a traveling state of the vehicle in order to park the vehicle into the parking area.