Vehicle Control System Mode Switching for Sensor Quality
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Solution Overview
Problem
Existing motor vehicle control systems face challenges in maintaining high comfort and availability, particularly in situations where sensor data quality deteriorates due to environmental factors or changes in driving tasks, leading to unreliable operation of driver assistance and automatic driving systems.
Innovation Solution
A device that seamlessly transitions between driver assistance systems and automatic driving systems based on the quality of sensor data, driving task, and environment, allowing the vehicle to switch between different modes of operation, such as from unsupervised to monitored traffic pilot or from automatic to assisted driving, ensuring continuous safe operation by utilizing a common sensor platform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system operates in automatic driving mode with high automation, then driving comfort is improved, but system reliability deteriorates when sensor data quality deteriorates
Solution Approach 1:
The system dynamically adjusts the level of automation based on sensor data quality. When sensor quality is high, the system operates in automatic driving mode with high automation. When sensor quality deteriorates, the system transitions to driver assistance mode or manual mode, thereby adapting the automation level to current conditions and maintaining reliability while preserving comfort when possible.
Solution Approach 2:
The system changes the operational parameters by switching between different driving modes (automatic driving, driver assistance, manual) based on sensor data quality thresholds. This parameter change allows the system to maintain reliability by reducing automation when sensors perform poorly, while enjoying high comfort when sensors perform well.
2Reliability
If the system switches off automatic driving when sensor quality deteriorates, then system reliability is improved, but driving comfort deteriorates
Solution Approach 1:
Instead of a binary on/off switching, the system implements a dynamic three-mode operation (automatic driving, driver assistance, manual). This allows the system to maintain reliability by transitioning to less automated modes when sensor quality deteriorates, while preserving some level of automated support through the driver assistance mode, thereby mitigating the loss of comfort.
3Device complexity
If the system uses a single sensor platform for both driver assistance and automatic driving, then device complexity is reduced, but measurement precision deteriorates when sensor data quality is insufficient
Solution Approach 1:
The system dynamically adjusts operational requirements based on sensor data quality. When sensor quality is sufficient, the system operates in automatic driving mode requiring high measurement precision. When sensor quality deteriorates, the system transitions to modes with reduced precision requirements, thereby maintaining acceptable performance with a single sensor platform without requiring multiple specialized sensor systems.
4Productivity
If the system maintains high automation level, then productivity is improved, but adaptability deteriorates when environmental conditions change
Solution Approach 1:
The system dynamically adapts its automation level to environmental conditions and sensor performance. In optimal conditions, it operates at high automation for maximum productivity. When environmental conditions change or sensor quality deteriorates, it transitions to less automated modes, thereby maintaining adaptability while preserving high productivity when conditions permit.
Data Source
Figure 1
AI summary
The invention relates to a method and a device (1) for controlling and/or regulating a motor vehicle, comprising at least one driver assistance system (FA 1-3) for supporting the driver and at least one system (AS 1-3) for automatic driving, wherein the systems (FA 1-3, AS 1-3) access the data of at least one common sensor (3-5), wherein depending on the driving task and/or the surroundings and/or the quality of the sensor data (3-5) automatically from one system (FA 1-3, AS 1-3) is switched to the other system or the driver is informed about the possibility of the switch.