Reverse Activated Signaling Circuit for Vehicle Safety

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Solution Overview

Problem

Current reverse signaling technologies, relying on continuous lighting or audible signals, are inadequate for effectively alerting other motorists and pedestrians of a vehicle's direction of travel, especially when reverse lights malfunction or are not functioning properly.

Innovation Solution

The integration of an oscillator circuit with existing automotive four-way flasher and reverse light circuits, utilizing standard components and wiring, to provide a dynamic flashing pattern that activates both in-dash signals and additional external lights, including the hazard or emergency light circuit, without interrupting existing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If continuous reverse lights are used to indicate reversing, then the signaling is simple and reliable, but it fails to provide adequate alert when reverse lights malfunction or are not visible to other motorists

Engineering Contradiction:
Improvereverse signaling reliabilityVSAvoidvisibility of reversing vehicle
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies periodic action by using a four-way flasher circuit to create an alternating flashing pattern of reverse lights and hazard lights. This periodic illumination draws attention more effectively than continuous lighting, especially when reverse lights alone are malfunctioning or insufficiently visible, thereby improving both reliability and visibility of the reversing vehicle signal.

Inventive Principle:
Principle #19Periodic action

2Object-affected harmful factors

If additional reverse alert signal lights are added to improve visibility, then the alert effectiveness increases, but the device complexity and installation difficulty increase

Engineering Contradiction:
Improvevisibility of reversing vehicleVSAvoidcircuit complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent utilizes the existing four-way flasher circuit and reverse light system already present in vehicles, making the additional reverse alert function work through components the vehicle already has. This multi-functional approach allows the system to serve both as a hazard light indicator and a reverse signal without requiring entirely new dedicated components, thereby reducing device complexity while improving visibility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the reverse light circuit with the hazard light circuit through the four-way flasher mechanism. By combining these functions into a single integrated signaling system rather than separate independent systems, the patent reduces overall device complexity and installation difficulty while achieving enhanced visibility through the coordinated flashing pattern.

Inventive Principle:
Principle #5Merging (Combining)

3Object-affected harmful factors

If the four-way flasher circuit is used to activate hazard lights during reversing, then the alert visibility improves, but the electrical system load and potential interference with existing systems increases

Engineering Contradiction:
Improvevisibility of reversing vehicleVSAvoidelectrical power consumption
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The patent employs the vehicle's existing four-way flasher circuit to automatically provide the flashing function when reverse lights are activated. The system uses its own existing electrical components and power distribution network rather than requiring an entirely separate power source, thereby minimizing additional electrical load while achieving enhanced visibility through the flasher's alternating current switching capability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9145085B2Reverse activated signaling circuit
Publication Date: 2015.09.29 HENRY GREGORY DOLIVEIRA
  • US9145085B2 patent drawing
  • US9145085B2 patent drawing
  • US9145085B2 patent drawing

AI summary

The present invention provides an enhanced safety signaling circuit for vehicles, in particular when a vehicle is traveling in reverse. The invention is connected to a vehicle's reverse light circuit and to signaling circuits, such as signal light circuits. The invention causes the signaling circuits to activate each time the vehicle is set to reverse. The invention can be used with existing automotive emergency flasher and reverse light circuits, or to additional light or acoustic signaling devices. The invention is designed to connect to a vehicle's existing circuits by various wire-splice connections without interfering with the normal location or operation of the existing circuits, and allows electronic components to energize the emergency flashing light circuits during the reversing process of a vehicle. The signaling can flash in an alternating pattern or simultaneously.