Vehicle Headlamp Irradiation Control for Autonomous Driving
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Solution Overview
Problem
In autonomous driving mode, headlamps emit unnecessary energy as the light irradiation amount is set equivalent to manual driving mode, consuming excess energy due to higher light sensitivity of visible light cameras compared to human eyes.
Innovation Solution
The headlamp control method reduces the light irradiation amount in autonomous driving mode to be smaller than in manual driving mode, synchronizing with the frame rate of the visible light camera and adjusting based on illumination intensity and mode transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the headlamp irradiation amount is set to be equivalent in both autonomous and manual driving modes, then the detection capability for manual driving is ensured, but unnecessary energy is consumed in autonomous driving mode
Solution Approach 1:
The headlamp control device dynamically adjusts the irradiation amount based on the driving mode. In autonomous driving mode, the irradiation amount is reduced compared to manual driving mode, as the visible light camera requires less light due to its higher sensitivity. This dynamic adjustment resolves the contradiction by adapting the headlamp output to the specific requirements of each mode, reducing energy consumption while maintaining adequate detection capability.
2Use of energy by moving object
If the headlamp irradiation amount is reduced in autonomous driving mode, then energy consumption is reduced, but the detection capability may be insufficient
Solution Approach 1:
The invention changes the irradiation parameter based on the driving mode. Since the visible light camera has higher light sensitivity than human eyes, the required irradiation amount for autonomous driving can be reduced while still achieving sufficient detection accuracy. The control device implements different irradiation settings for autonomous and manual modes, optimizing the balance between energy consumption and detection precision.
Data Source
AI summary
A headlamp control device includes a headlamp control unit for controlling headlamps so as to regulate an irradiation amount, the headlamps being installed in a vehicle equipped with an autonomous driving mode driven in accordance with images acquired by a visible light camera for capturing the circumference of the vehicle and a manual driving mode driven by a driver of the vehicle. The headlamp control unit decreases the irradiation amount of the headlamps in the autonomous driving mode so as to be smaller than the irradiation amount of the headlamps in the manual driving mode.