Multi-Position Headlight Switch for Space-Constrained Vehicles
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Solution Overview
Problem
Recreational vehicles such as side-by-side vehicles, all-terrain-vehicles, and snowmobiles face space constraints for installing headlight control buttons, necessitating a compact vehicle headlight system that can efficiently operate in high beam, low beam, and off modes.
Innovation Solution
A vehicle headlight system with a controller and a switch that has three positions, allowing for automatic mode switching based on switch position, vehicle speed, and sensor signals, ensuring the headlight is in the appropriate mode (high beam, low beam, or off) based on predetermined conditions, including a bias towards the intermediate position for low beam mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple buttons are installed to control headlight modes, then headlight functionality is improved, but vehicle space consumption increases
Solution Approach 1:
The single switch is designed to perform multiple functions: it controls high beam mode, low beam mode, and headlight off mode through its three positions. This multi-functional switch replaces what would traditionally require multiple separate buttons, thereby maintaining full headlight control capability while significantly reducing the space required on the vehicle's control panel.
Solution Approach 2:
The patent merges the functions of multiple headlight control buttons into a single integrated switch assembly. By combining high beam control, low beam control, and off control into one unified interface, the system reduces the total number of control elements needed, directly addressing the space constraint problem on recreational vehicles.
2Area of stationary object
If a compact switch design is used, then vehicle space utilization is improved, but control precision may worsen
Solution Approach 1:
The patent introduces a spring-loaded intermediate position mechanism that acts as a mediator between the switch actuator and the control system. When the switch is released, the spring automatically returns it to the intermediate (low beam) position, ensuring precise and consistent positioning. This mechanical intermediary guarantees accurate position detection despite the compact overall switch design.
Solution Approach 2:
The control system continuously monitors the switch position and provides feedback to maintain accurate mode selection. The system detects whether the switch is in the first position (high beam), second position (low beam), or third position (off), and adjusts accordingly. This feedback mechanism ensures precise control even within a compact switch form factor.
Data Source
AI summary
A vehicle headlight system has at least one headlight having low, high and off modes. A controller is electrically connected to the at least one headlight and communicates with a switch. The switch has first, second and third positions. The second position is intermediate the first and third positions, and is biased to return to the second position from the third position. The controller controls the at least one headlight to be: in one of the low beam mode and the high beam mode when the switch is in the first position; in another one of the low beam mode and the high beam mode when the switch is in the second position; in the off mode when the switch is in the third position for more than a predetermined amount of time. A method for controlling at least one headlight of a vehicle is also disclosed.