Recommended Lane Control Using Lane-Specific Map Data
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Solution Overview
Problem
Conventional vehicle navigation systems lack lane-specific traffic congestion and restriction information, which hinders the determination of a recommended lane for improving driving comfort.
Innovation Solution
A vehicle system that utilizes a high-precision map to determine a recommended lane by acquiring traffic congestion and restriction information for each lane, and adjusts the switching point based on occupant preferences to enhance driving comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional map information is used without lane-specific data, then the system complexity is reduced, but the accuracy of recommended lane determination deteriorates
Solution Approach 1:
The patent segments map information by lane, dividing the road into multiple lanes with distinct traffic congestion and restriction information for each lane. This allows the system to determine recommended lanes with high accuracy by analyzing lane-specific data while managing complexity through structured organization of information.
Solution Approach 2:
The patent applies local quality by providing different traffic congestion and restriction information for each specific lane rather than uniform information for the entire road. This enables precise lane determination by considering local conditions of each lane, such as congestion levels and restrictions applicable only to that lane.
2Ease of operation
If the switching point is fixed during autonomous driving, then the system operation is simplified, but the driving comfort deteriorates
Solution Approach 1:
The patent makes the switching point dynamic by adjusting it based on occupant preferences stored in the storage unit. The switching point can be shifted forward or backward along the travel direction according to preferences for lane change timing, allowing the system to maintain simple operation while adapting to individual comfort requirements.
Solution Approach 2:
The patent implements feedback by storing occupant preferences for lane change timing and using this feedback to adjust the switching point. The system learns from actual lane change behavior during manual driving and applies this knowledge during autonomous driving to improve comfort while maintaining operational simplicity.
3Reliability
If the switching point is adjusted according to occupant preferences, then the driving comfort is improved, but the device complexity increases
Solution Approach 1:
The patent applies self-service by having the system automatically adjust the switching point based on stored occupant preferences without requiring real-time input or complex processing. The storage unit stores preferences, and the recommended lane determining unit automatically applies them, improving comfort while minimizing additional complexity.
Solution Approach 2:
The patent uses preliminary action by storing occupant preferences in advance during manual driving or through user input. These pre-stored preferences are then applied during autonomous driving to adjust the switching point, allowing the system to improve comfort without adding complex real-time decision-making mechanisms.
Data Source
AI summary
A vehicle system includes: a controller configured to communicate with a map server; and a vehicle position acquiring device configured to acquire own vehicle position information. The controller includes: a vehicle position determining unit configured to determine a lane in which an own vehicle is traveling based on the own vehicle position information; a recommended lane determining unit configured to determine a recommended lane; and a storage unit configured to store preference of an occupant including preference for a timing of a lane change of the occupant. The recommended lane determining unit is configured to set a priority of each lane based on map information, determine the lane having a highest priority as the recommended lane, and adjust a switching point of the recommended lane according to the preference stored in the storage unit.