Autonomous Driving Mode Switching for Battery-Aware Route Control
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Solution Overview
Problem
Autonomous driving vehicles face increased power consumption at higher autonomous driving levels, particularly in Level 4, which can reduce driving distance due to higher information throughput, necessitating a technology to optimize power consumption by adjusting driving modes based on road sections and battery state.
Innovation Solution
An autonomous driving mode control method and apparatus that sets driving routes, compares battery state of charge with predetermined values, and adjusts driving modes based on safety levels and dangerous situations, including driver states and weather conditions, to minimize power consumption by downgrading or upgrading autonomous driving levels dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If high-level autonomous driving mode (Level 4) is activated, then driving automation and safety are improved, but power consumption increases and driving distance is reduced
Solution Approach 1:
The patent implements dynamic switching between different autonomous driving levels (Level 2, 3, and 4) based on real-time conditions including battery state of charge, road section characteristics, and environmental factors. The system adjusts the autonomous driving level dynamically rather than maintaining a fixed high level, thereby optimizing power consumption while preserving safety when needed.
Solution Approach 2:
The patent applies different autonomous driving levels to different road sections based on their specific characteristics such as curvature, slope, traffic density, and weather conditions. High-level automation (Level 4) is deployed only in sections where it is most beneficial, while lower levels are used in other sections, creating a spatially differentiated approach to automation that reduces overall power consumption.
2Reliability
If high-level autonomous driving mode is activated, then safety and automation are improved, but battery consumption increases
Solution Approach 1:
The patent monitors and responds to changes in battery state of charge parameters, dynamically adjusting the autonomous driving level based on the current battery status. When battery charge drops below certain thresholds, the system automatically downgrades to lower autonomous driving levels to conserve energy, ensuring the vehicle can complete its journey while maintaining safety within available energy constraints.
3Use of energy by moving object
If autonomous driving level is optimized for each road section, then power consumption is minimized, but system complexity increases
Solution Approach 1:
The patent divides the driving route into multiple road sections and evaluates characteristics of each section independently. The system segments the overall driving task into manageable portions, applying appropriate autonomous driving levels to each segment based on its specific requirements, which simplifies the control logic compared to managing a single unified autonomous driving level for the entire journey.
Data Source
AI summary
An autonomous driving mode control method includes setting a driving route based on an origin and a destination of a vehicle, comparing an expected state of charge (SOC) value of a battery at the destination with a predetermined SOC value, and controlling travel of the vehicle by determining whether to activate a high-level driving mode in consideration of at least one of whether a dangerous situation occurs, a result of the comparing, or a safety level of the driving route.