Automated Driving Indicator Lamp Lighting Sequence Control
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Solution Overview
Problem
Automated driving enabled vehicles face challenges in ensuring safety and power efficiency, as the automated driving indicator lamp's constant activation during automated driving leads to increased power consumption, and its deactivation while parked or stopped may cause unexpected departures, making it difficult for pedestrians and surrounding vehicles to recognize the vehicle's status.
Innovation Solution
Incorporating a lamp controller that switches on the automated driving indicator lamp before other lamps during a departure from a parked or stopped state, ensuring the indicator lamp is the first to be activated, thereby maintaining visibility and reducing power consumption by controlling the lighting states of both the automated driving indicator lamp and other lamps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the automated driving indicator lamp is constantly activated during automated driving, then the visibility of automated driving status is improved, but the power consumption increases
Solution Approach 1:
The indicator lamp is activated periodically or intermittently rather than continuously during automated driving, reducing overall power consumption while maintaining visibility. The lamp controller switches the lamp on and off based on detection of automated driving status, creating a periodic activation pattern that balances visibility with energy efficiency.
2Use of energy by moving object
If the automated driving indicator lamp is deactivated while parked or stopped, then the power consumption is reduced, but the safety is compromised as unexpected departures cannot be recognized
Solution Approach 1:
The indicator lamp is activated in advance before the vehicle actually departs from a parked or stopped state. The lamp controller detects when the vehicle is in a parked state and activates the indicator lamp before departure occurs, providing advance warning to pedestrians and surrounding vehicles. This preliminary activation ensures safety recognition is maintained while allowing the lamp to be deactivated during prolonged parked states to reduce power consumption.
3Use of energy by moving object
If the indicator lamp is switched on simultaneously with other lamps during departure, then the power consumption is reduced, but the recognition of automated driving status is delayed
Solution Approach 1:
The lighting activation process is segmented into sequential stages rather than a single simultaneous event. The lamp controller first activates the automated driving indicator lamp, then subsequently activates other lamps (headlights, taillights, etc.) after a predetermined time interval. This segmentation ensures the indicator lamp is visible first for automated driving status recognition, while the delayed activation of other lamps optimizes power consumption by staggering the power draw.
Data Source
AI summary
An automated driving enabled vehicle includes an automated driving indicator lamp, one or more lamps, and a lamp controller. The automated driving indicator lamp is configured to be switched on perceptibly from outside the vehicle on the occasion of automated driving of the vehicle. The one or more lamps are provided on the vehicle separately from the automated driving indicator lamp. The lamp controller is configured to start to switch on the automated driving indicator lamp that has been off, before starting to switch on the one or more lamps, on the condition that the vehicle is about to make a departure by the automated driving from a parked or stopped state with the automated driving indicator lamp and the one or more lamps off.