Vehicle Laser Head Lamp Module Balancing Control
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Solution Overview
Problem
Laser head lamps for vehicles require frequent replacement, leading to high maintenance costs and reduced usage time due to unbalanced operation and thermal issues, especially when some modules become inoperable.
Innovation Solution
A laser head lamp system with multiple modules, each equipped with a laser diode for low and high beams, controlled by a processor that balances operation based on turn-on time and temperature information, allowing for adaptive beam pattern generation and extended usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple lamp modules are operated simultaneously to provide sufficient illumination, then the illumination intensity is improved, but the thermal damage risk and maintenance frequency increase
Solution Approach 1:
The processor controls multiple lamp modules to operate in alternating periodic cycles rather than simultaneously. The system switches between different lamp modules in sequence, allowing each module sufficient cooling time while maintaining continuous illumination through coordinated operation of multiple modules.
2Duration of action of moving object
If lamp modules are operated without balancing control, then the device complexity is reduced, but the usage time and reliability decrease due to unbalanced operation
Solution Approach 1:
The processor implements feedback control by continuously monitoring the operational status and accumulated operation time of each lamp module. Based on this feedback, the system dynamically adjusts which modules are activated to balance the usage load across all modules, extending overall system lifespan while maintaining simple control logic.
3Ease of manufacture
If all lamp modules are designed to be identical for ease of manufacture, then the manufacturing precision is improved, but the adaptability to handle module failure decreases
Solution Approach 1:
The headlamp system is segmented into multiple independent lamp modules, each capable of independent operation. The processor is configured to detect when a module becomes inoperable and automatically redistribute the illumination load to remaining functional modules, maintaining system adaptability while allowing identical module design for manufacturing efficiency.
4Illumination intensity
If frequent replacement of lamp modules is performed to maintain performance, then the illumination intensity is maintained, but the loss of time and productivity decrease
Solution Approach 1:
The system performs preliminary balancing control by monitoring and managing the operational load distribution among lamp modules before any module reaches its end-of-life. This proactive management prevents premature module failure and eliminates the need for frequent replacements, reducing maintenance time while ensuring consistent illumination performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system extends the usage time of the laser head lamp, prevents thermal damage, and maintains functionality even when some modules are inoperable, ensuring continuous nighttime driving capability.
Implementation Method 1
a plurality of lamp modules 160 each having a laser diode and configured to output at least one of a low beam and a high beam
Data Source
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AI summary
Disclosed is a laser head lamp for vehicle, including: a plurality of lamp modules each having a laser diode and configured to output at least one of a low beam and a high beam; and a processor configured to acquire turn-on time information of each of the plurality of lamp modules, and control the plurality of lamp modules based on the acquired information so that the plurality of lamp modules are turned on in a balanced manner respectively.