Automated Driving Control Mode Transition
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Solution Overview
Problem
Existing vehicle control systems do not effectively manage transitions between automated driving modes when the destination is changed or canceled, leading to increased load on the vehicle occupant as automated driving is often abruptly canceled.
Innovation Solution
A vehicle control device that includes an automated driving instruction unit, destination setting unit, position specifying unit, and automated driving control unit, which transitions between destination guidance mode and road following mode based on the set destination, allowing continuous automated driving and reducing occupant load by dynamically adjusting driving states and issuing notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If automated driving is simply canceled when the situation changes, then the system can respond to new conditions, but the load imposed on the vehicle occupant increases
Solution Approach 1:
The patent implements dynamic switching between different automated driving modes (first mode with destination guidance, second mode without destination guidance) based on real-time situation assessment. When the system detects that the current driving mode cannot continue due to situation changes, it transitions to an appropriate alternative mode rather than simply canceling automated driving, thereby maintaining adaptability while reducing occupant burden
Solution Approach 2:
The system changes the operational parameters of automated driving by switching between different driving modes with distinct characteristics. The first automated driving mode includes destination guidance functionality while the second mode focuses on road following without destination constraints. This parameter change allows the system to adapt to different situations while maintaining continuous automated operation
2Duration of action of stationary object
If the system transitions between different automated driving modes, then continuous automated driving is maintained, but the complexity of the control system increases
Solution Approach 1:
The automated driving control is segmented into distinct modes (first mode with destination guidance, second mode without destination guidance), each optimized for specific driving scenarios. This segmentation allows the system to maintain continuous automated operation by switching between modes while keeping each individual mode relatively simple and manageable
Solution Approach 2:
The automated driving control unit is designed with multi-functionality to handle both destination-guided and destination-free driving modes within a single unified system. This universal design enables continuous automated driving across different scenarios without requiring separate independent systems, thereby managing complexity while extending operational duration
Data Source
AI summary
An automated driving control unit sets an automated driving state to a first automated driving state (step S3), in a case that an automated driving instruction unit has instructed the initiation of automated driving in a state in which a destination is set by a destination setting unit, sets the automated driving state to a second automated driving state (step S4), in a case that the automated driving instruction unit has instructed the initiation of automated driving in a state in which the destination is not set by the destination setting unit, and causes the automated driving state to transition from the first automated driving state to the second automated driving state (step S13), in a case that a current travel position lies outside of a travel route during the travel control in the first automated driving state.