Straight Ahead Vehicle Directional Indicator System
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Solution Overview
Problem
Current vehicle directional indicator systems lack a clear and dynamic way to indicate straight ahead travel intention, leading to confusion and safety hazards, especially in intersections with human and autonomous vehicles, as passive indicators are ambiguous and may lead to accidents and inefficient traffic flow.
Innovation Solution
A vehicle directional signal system that includes a straight ahead directional indicator, powered by the ignition system and thermal flasher, which dynamically indicates the intention to travel straight ahead in addition to left and right turns, using interior and exterior lights, and can be activated by drivers or computer systems in human or autonomous vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional turn signal indicators are used without a straight ahead indicator, then the device complexity is reduced, but the loss of information increases because directional intention is ambiguous
Solution Approach 1:
The existing turn signal indicator system is extended to perform multiple functions by adding a straight ahead indication capability. The same indicator lights and control mechanisms are utilized to convey both turn and straight ahead intentions, making the system multi-functional without requiring completely separate components.
Solution Approach 2:
The indicator system becomes dynamic by enabling the straight ahead indicator to be activated or deactivated based on the vehicle's actual directional intention. This dynamic engagement allows the system to adapt its information output to match the driver's intended action, reducing ambiguity without adding permanent complex hardware for all possible indications.
2Reliability
If no straight ahead indicator is provided, then the ease of operation is maintained with simple turn signal controls, but the reliability decreases due to ambiguous signaling at intersections
Solution Approach 1:
The straight ahead indicator is activated in advance to clearly communicate the vehicle's intention before the vehicle actually proceeds straight through the intersection. This preliminary indication allows other road users to anticipate the vehicle's action, improving reliability by eliminating ambiguity about whether the vehicle will turn or go straight.
Solution Approach 2:
The system provides feedback to other road users about the vehicle's intended direction. By activating the straight ahead indicator when that is the intended action, the system creates a communication loop where the vehicle's intention is clearly conveyed back to pedestrians and other drivers, enhancing reliability of the signaling system.
3Loss of information
If passive indication (no signal) is used for straight ahead travel, then the use of energy is reduced, but the loss of information increases causing confusion about vehicle intention
Solution Approach 1:
The indicator system operates dynamically, activating the straight ahead indicator only when needed to communicate intention. This dynamic operation allows the system to conserve energy by not continuously operating indicators, while still providing necessary information when the vehicle intends to go straight, thus balancing energy consumption with information communication.
Data Source
AI summary
A vehicle directional indicator is provided for enhancing the safety and knowledge of all persons using roadways, including drivers, pedestrians, and bikers. Depending on the position applied to the directional indicator for a driver or driverless vehicle, power can be sent to the left turn signal light or the right turn signal light or the straight ahead signal light. These signal lights include indicator lights on the dashboard, as well as front and rear exterior indicator lights. The straight ahead directional indication is particularly useful at an intersection, where multiple vehicles and pedestrians are weighing the directional indicators of the other vehicles at the intersection, assured clear distances, oncoming traffic and multiple other traffic patterns, to provide the safest and most timely continued travel.