Vehicle Light Coordination for Proximity-Based Recognition
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Solution Overview
Problem
Existing vehicle keyless entry systems struggle to make vehicles easily recognizable in crowded parking lots, often leading to mistaken security alerts and difficulty in locating one's own vehicle, without providing a welcoming impression.
Innovation Solution
A vehicle light system that integrates exterior and interior lamps, controlled by a lighting controller, uses wireless communication to activate lamps in a coordinated manner based on the proximity of a portable device, enhancing vehicle recognition and design appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If interior lamps are lit in synchronization with door unlocking to help occupants find their vehicle, then the vehicle becomes more recognizable in parking lots, but it may be mistaken for a theft deterrence system creating confusion
Solution Approach 1:
The lighting system is divided into multiple lamp groups (exterior lamps including front and rear lamps, and interior lamps including room lamps and ambient lamps) that can be controlled independently. This segmentation allows different lighting patterns to convey different meanings - exterior lamps for vehicle recognition and interior lamps for welcoming occupants, eliminating confusion between security and welcome functions
Solution Approach 2:
The lighting controller dynamically adjusts the lighting state based on the distance between the portable device and vehicle. When the distance is shorter than a predetermined threshold, the controller activates specific lighting patterns (exterior lamps first, then interior lamps with delay) to create a welcoming effect. This dynamic response distinguishes the system from static security lighting
2Adaptability or versatility
If multiple lamps are activated to create a welcoming illumination pattern, then the vehicle design is highlighted and occupant experience is enhanced, but the system complexity increases
Solution Approach 1:
The lighting controller serves multiple functions: it controls exterior lamps for vehicle recognition, interior lamps for welcoming occupants, and coordinates lighting sequences based on distance detection. By making the lighting system multi-functional, the patent avoids adding separate control systems for different lighting scenarios, thereby managing complexity while enhancing versatility
Solution Approach 2:
The lighting controller is pre-programmed with specific lighting patterns and timing sequences. When the portable device approaches within the predetermined distance, the controller automatically executes the pre-planned sequence: activating exterior lamps first, then delaying before activating interior lamps. This preliminary programming reduces real-time control complexity
Data Source
AI summary
Provided is a vehicle light system using existing interior lamps and exterior lamps, the interior lamps and the exterior lamps cooperating to provide dramatic illumination. The vehicle light system can include: a lighting control unit that generates and outputs a control signal for controlling the turning on and off of both the exterior lamps and the interior lamps; a light source driving unit that drives the light source of any lamp of the vehicle lamp group on the basis of the control signal provided from the lighting control unit; an in-vehicle device that is mounted on the vehicle and that has a wireless communication function; a portable device that can be carried outside the vehicle by an occupant of the vehicle and that has a wireless communication function with the in-vehicle device; and an in-vehicle network configured to connect the in-vehicle device and the lighting control unit. The lighting control unit acquires positional information for the portable device through the in-vehicle network, and generates and outputs a control signal whereby both the interior lamps and the exterior lamps cooperate to provide lighting when the occupant enters a predetermined range. The commercial value of a vehicle light can thereby be increased.