Vehicle Deceleration Warning via Tilt and Accelerometer Sensors
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Solution Overview
Problem
Motor vehicles, especially motorcycles, can rapidly decelerate without engaging the brakes, leading to inadequate warning to following traffic, as the brake lights do not illuminate in such situations, posing a safety risk due to the lack of deceleration warning without using the braking system.
Innovation Solution
The integration of tilt sensors and accelerometers into vehicles to automatically illuminate the brake lights during deceleration, regardless of whether the brakes are applied, using a combination of wireless and hard-wired systems to provide a deceleration warning to other drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a motor vehicle rapidly decelerates without using the braking system, then the deceleration speed is improved, but the brake light illumination is lost, resulting in inadequate warning to following traffic
Solution Approach 1:
The system performs preliminary detection of deceleration using sensors (accelerometers, tilt sensors, GPS) before the brake lights would normally activate. By detecting the deceleration event in advance through motion sensors, the system can trigger the brake light illumination proactively, ensuring the warning signal is provided even when the braking system is not engaged. This resolves the contradiction by preparing and activating the warning signal based on predicted or detected deceleration patterns.
Solution Approach 2:
The patent introduces an intermediary control system that mediates between the vehicle's motion state and the brake light activation. This intermediary system uses sensors (accelerometers, tilt sensors, GPS) to detect deceleration and independently triggers the brake light circuit without requiring the braking system to be engaged. The intermediary controller acts as a bridge, translating motion detection into visual warning signals, thereby resolving the disconnect between deceleration and brake light illumination.
2Reliability
If tilt sensors and accelerometers are integrated into the vehicle to detect deceleration, then the deceleration warning capability is improved, but the device complexity increases
Solution Approach 1:
The patent applies multi-functionality by designing a control system that handles multiple sensor inputs (accelerometers, tilt sensors, GPS) and processes various vehicle states through a single intermediary controller. This unified approach allows the same control unit to manage deceleration detection, brake light activation, and potentially other safety functions, reducing overall system complexity despite the multiple sensors involved. The controller serves multiple purposes: detecting deceleration, determining when to activate lights, and managing the warning signal output.
Solution Approach 2:
The patent combines multiple sensing functions (acceleration detection, tilt detection, position tracking) into a single integrated sensor system that feeds into one control unit. Rather than having separate systems for each function, the invention merges these capabilities into a unified deceleration detection and warning system. This consolidation reduces the number of independent control units needed and simplifies the overall system architecture while maintaining comprehensive monitoring capabilities.
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
This solution ensures that vehicles can signal deceleration without using the brakes, enhancing safety by providing a clear warning to following traffic, reducing the risk of collisions, and addressing the issue of rapid deceleration without brake light illumination.
Implementation Method 1
The integration of tilt sensors and accelerometers into vehicles to automatically illuminate the brake lights during deceleration
Implementation Method 2
The integration of tilt sensors and accelerometers into vehicles to automatically illuminate the brake lights during deceleration
Data Source
AI summary
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