Autonomous Vehicle Headlight Controller Stop Mode Logic
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Solution Overview
Problem
During autonomous driving, electrical devices like headlights and wipers in vehicles continue to operate automatically, potentially leading to misidentification as faulty when a driver turns them off, as the operation mode switch is independent of the driver's control.
Innovation Solution
An electrical device controller with a processor that manages operation modes, ensuring the devices are set to a stop mode temporarily when the driver switches them off during autonomous driving, and then returns to automatic mode based on conditions like illuminance, rain, or driver attention, preventing misidentification as faulty.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical device continues to operate automatically during autonomous driving regardless of switch operation, then the device ensures proper sensor operation and visibility, but the occupant may mistakenly believe the device is faulty when turning it off
Solution Approach 1:
The control device dynamically changes its response to switch operations based on the current driving state. When manually driven, the device responds normally to switch commands. When autonomously driven, the device ignores switch commands to maintain automatic operation. This dynamic adaptation resolves the contradiction by making the system behavior context-dependent, ensuring both reliable operation and alignment with occupant expectations.
Solution Approach 2:
The control device acts as an intermediary between the switch operation and the electrical device operation. It receives the switch signal but filters it based on the driving state information from the driving state identification unit. This intermediary function allows the system to maintain automatic operation during autonomous driving while still acknowledging the switch operation, preventing the occupant from mistakenly believing the device is faulty.
2Extent of automation
If the electrical device operates automatically during autonomous driving, then sensor operation is ensured, but the device does not respond to occupant switch operations causing confusion
Solution Approach 1:
The system dynamically adjusts the level of automation based on driving state. During autonomous driving, the automation level is high and switch operations are ignored. During manual driving, the automation level is low and switch operations are fully responsive. This dynamic adjustment ensures that automation is maintained when needed while preserving switch operation feedback when appropriate.
Solution Approach 2:
The control device implements a feedback mechanism where it monitors the driving state and adjusts its response to switch operations accordingly. The driving state identification unit provides feedback about the current driving mode, and the control device uses this feedback to determine whether to respond to switch commands. This feedback loop ensures that the system maintains appropriate automation levels while preserving occupant control feedback when relevant.
3Extent of automation
If the device ignores switch operations during autonomous driving, then automatic operation is maintained, but the occupant cannot control the device when needed
Solution Approach 1:
The system dynamically switches between automatic operation mode and manual control mode based on the driving state. During autonomous driving, the system operates in automatic mode where switch operations are ignored. During manual driving, the system switches to manual control mode where switch operations are fully responsive. This dynamic mode switching resolves the contradiction by ensuring automatic operation is maintained only when autonomous driving is active, while preserving occupant control capability when manually driven.
Solution Approach 2:
The control device changes its operational parameters based on the driving state. Specifically, it changes the parameter of switch signal responsiveness: during autonomous driving, the responsiveness parameter is set to ignore switch signals, while during manual driving, the responsiveness parameter is set to fully respond to switch signals. This parameter change allows the system to maintain automatic operation when needed while preserving occupant control capability when appropriate.
Data Source
AI summary
An electrical device controller includes a processor, and a memory for storing a program executed by the processor. The processor controls the electrical device in multiple operation modes including an automatic mode which automatically changes the operation state of the electrical device and a stop mode which stops the electrical device, controls the electrical device in an operation mode specified with an operating member operated by an occupant when the vehicle is manually driven, controls the operation state of the electrical device in the automatic mode regardless of the operation mode specified with the operating member when the vehicle is autonomously driven, and sets the operation mode of the electrical device at least temporarily to the stop mode when the operation mode specified with the operation member is switched to the stop mode from an operation mode other than the stop mode, when the vehicle is autonomously driven.