Vehicle Foot Mat Lighting Control via CAN Bus
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Solution Overview
Problem
Current foot mats for vehicles primarily focus on cleanliness and limited illumination, failing to provide dynamic and customizable lighting options for enhancing the vehicle's internal environment.
Innovation Solution
A lighting vehicle foot mat with a control unit, memory, and CAN bus transceiver that allows for various lighting states and codes, enabling customizable illumination and communication with vehicle systems for adjusting lighting based on vehicle control signals or user inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If foot mats are equipped with basic LED illumination, then the foot mat can provide lighting function, but the lighting functionality is limited and cannot provide diverse lighting states or atmospheric effects
Solution Approach 1:
The control unit is designed to perform multiple functions: it controls the lighting device, communicates with vehicle systems via CAN bus, receives wireless signals, and manages different lighting states. This multi-functional design allows a single device to replace what would otherwise require multiple separate components, thereby increasing adaptability while managing complexity.
Solution Approach 2:
The control unit acts as an intermediary between the lighting device and various control sources (CAN bus system, wireless signals, user inputs). It receives signals from different sources, processes them, and translates them into appropriate lighting states, thereby simplifying the overall system architecture while enabling diverse lighting functionality.
2Adaptability or versatility
If foot mats integrate control units with memory and CAN bus transceiver, then the foot mat can provide customizable lighting states and communicate with vehicle systems, but the device complexity increases
Solution Approach 1:
The control unit is designed as a nested structure where the microcontroller is embedded within the control unit, which itself is integrated into the foot mat assembly. This nesting approach allows multiple functional components to be housed within a compact form factor, reducing spatial complexity while maintaining full functionality.
Solution Approach 2:
The patent combines multiple previously separate functions into a single control unit: the lighting control, memory storage for lighting states, CAN bus communication, and wireless signal reception are all merged into one integrated control unit. This consolidation reduces the number of separate components and simplifies the overall system architecture.
3Adaptability or versatility
If foot mats provide only basic illumination, then the manufacturing cost is low, but the application range and user experience are limited
Solution Approach 1:
The system controls lighting by changing parameters such as brightness, color temperature, and lighting patterns through the control unit. By adjusting these parameters rather than requiring physically different lighting components for each function, the system achieves diverse lighting effects while maintaining a simple manufacturing process.
Solution Approach 2:
The patent uses cost-effective components such as standard LED lighting elements and off-the-shelf microcontroller units that can be easily replaced or updated. This approach allows for advanced functionality without requiring expensive custom-made components, thereby maintaining ease of manufacture while expanding application range.
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 solution provides enhanced illumination and customizable lighting states, expanding the application of foot mats by offering different lighting scenarios and user-friendly control options, such as through CAN bus or wireless communication, enhancing the vehicle's internal ambiance.
Implementation Method 1
a lighting device, and a control unit. The lighting device is disposed on the edge of the foot mat body
Data Source
AI summary
A lighting vehicle foot mat includes a foot mat body including a lighting device and a control unit. The control unit includes a memory storing a lighting state list of the lighting device. The lighting state list stores a plurality of lighting states and a plurality of codes corresponding to the plurality of lighting states, a control device controlling a lighting state of the lighting device according to the plurality of codes and a controller area network (CAN) bus transceiver receiving a vehicle control signal and transmitting the vehicle control signal to the control device. The control device analyzes the vehicle control signal to obtain a first code, compares the first code with the plurality of codes in the lighting state list and controls the lighting device according to the first code to generate a lighting state corresponding to the code.