Remote Parking Brake Verification Before Vehicle Movement
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Solution Overview
Problem
Existing remote parking apparatuses cannot reliably determine if the braking apparatus has a malfunction before initiating remote parking control, as they only check for electric power supply issues and not other potential causes like brake pad wear or overcharging.
Innovation Solution
The remote parking apparatus executes a braking-drive process, maintaining the vehicle stopped for a predetermined time to ensure the braking apparatus functions correctly before starting the remote parking control, thereby determining the absence of malfunctions in the braking system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only electric power supply malfunction is checked before remote parking control, then the checking process is simple, but the reliability of braking function determination is insufficient
Solution Approach 1:
The patent applies preliminary action by executing a braking-drive process before remote parking control to verify braking apparatus functionality. The ECU controls the braking apparatus to generate braking force and the driving apparatus to generate driving force, then determines whether the vehicle is maintained stopped based on wheel rotation speeds. This preliminary verification ensures reliable braking function determination before actual remote parking operation.
2Reliability
If a braking-drive process is executed to verify braking function, then the reliability of braking function determination is improved, but the time required before remote parking control starts increases
Solution Approach 1:
The patent applies partial action by executing a braking-drive process that generates only necessary braking force and driving force for verification purposes, rather than full braking operations. The ECU controls the braking apparatus to generate braking force equal to or greater than a first threshold and the driving apparatus to generate driving force equal to or greater than a second threshold, then determines braking function based on whether the vehicle remains stopped. This partial verification approach reduces the time required while ensuring reliable braking function determination.
Data Source
AI summary
A remote parking apparatus executes a remote parking control to park the own vehicle in a designated parking space by controlling operations of the driving apparatus and the braking apparatus in response to commands from outside of the own vehicle. The remote parking apparatus executes a braking-drive process to apply the braking force to the own vehicle by the braking apparatus and apply the driving force to the own vehicle by the driving apparatus before starting to move the own vehicle by the remote parking control. The remote parking apparatus starts to move the own vehicle by the remote parking control on the condition that the own vehicle is maintained stopped until a predetermined time elapses from starting the braking-drive process.