Driver Barrier Door Powered Window Automation
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Solution Overview
Problem
Existing barrier doors for public transit vehicles, such as buses, often require manual operation, leading to distractions for drivers and ergonomic concerns, while also limiting ventilation and comfort, which can result in reduced visibility and increased heat loads, compromising the protective and comfortable environment for drivers.
Innovation Solution
A barrier door system with an automatically operated, electromechanically lifted window panel and a powered ventilation system incorporating blower fans, heating, and cooling elements, allowing for controlled airflow and improved comfort, while maintaining protection and reducing distractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual window operation mechanism is used in the barrier door, then the driver can control ventilation, but it causes driver distraction and ergonomic concerns
Solution Approach 1:
The patent replaces the manual mechanical window operation system with an automated electromechanical system. The window panel is equipped with motors or actuators that automatically raise and lower the window based on pre-programmed schedules or sensor inputs, eliminating the need for manual driver intervention and thereby reducing driver distraction while maintaining ventilation control.
Solution Approach 2:
The window operation system is designed to serve itself through automated control mechanisms. The system can autonomously adjust window positions based on environmental sensors (temperature, humidity, air quality) or scheduled timetables without requiring continuous driver input, allowing the ventilation system to self-regulate while the driver focuses on operating the vehicle.
2Reliability
If the window panel is kept closed for protection, then driver safety is improved, but ventilation and air flow are restricted
Solution Approach 1:
The patent implements a dynamic window operation system that continuously adjusts window positions based on real-time conditions. The window panel transitions between closed, partially open, and fully open states according to environmental sensors, passenger presence detection, and safety protocols. This dynamic adjustment allows the system to maintain driver protection when necessary while optimizing ventilation when safe to do so.
Solution Approach 2:
The system incorporates multiple sensors that continuously monitor environmental conditions (temperature, air quality, humidity) and feed this information back to the control system. Based on this feedback, the automated window control adjusts window positions to maintain optimal ventilation while ensuring driver safety. The feedback loop enables the system to respond to changing conditions without manual intervention.
3Ease of operation
If the window is opened for ventilation, then air flow improves, but the protective barrier effect is reduced
Solution Approach 1:
The barrier door system is segmented into multiple independent components: the main barrier door, the window panel, and the ventilation system. This segmentation allows the window to be opened for ventilation while the main barrier door remains closed and secure. The modular design enables selective opening of only the ventilation portion without compromising the overall protective function of the barrier door.
Solution Approach 2:
The patent applies different functional qualities to different parts of the barrier door system. The main barrier door maintains its protective, secure, and impermeable characteristics, while the window panel is designed with movable and adjustable properties for ventilation. This local differentiation of qualities allows simultaneous achievement of protection and ventilation without compromising either function.
4Ease of operation
If a pneumatic assist system is added for window operation, then operation ease is improved, but system complexity increases
Solution Approach 1:
The patent replaces complex pneumatic or hydraulic assist systems with simpler electromechanical actuators or motors integrated directly into the window panel. This substitution reduces system complexity by eliminating pneumatic reservoirs, hoses, valves, and pressure regulation mechanisms, while still providing automated operation. The electromechanical system can be controlled through standard electrical circuits and integrated with the vehicle's existing control systems.
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 protection, comfort, and reduced distractions for drivers by enabling automatic operation of the window panel and controlled ventilation, improving airflow and temperature management within the driver's enclosure.
Implementation Method 1
The transparent window is coupled to an electromechanical lift device housed in the lower section
Implementation Method 2
The barrier door may also incorporate a ventilation system to allow for improved ventilation and air circulation in a driver's enclosure
Data Source
AI summary
A barrier door for a protective enclosure includes a lower section and an upper section. The upper section includes an outer stationary portion and an inner movable portion disposed within the outer stationary portion. The outer stationary portion and the inner movable portion are light transmissive. The inner movable portion is movable in a vertical direction and is coupled to a lift device disposed in the lower section. The lift device is configured to move the inner movable portion between a lowered position in which the inner movable portion is at least partially withdrawn into the lower section to form an opening in the upper section and a raised position in which the inner movable portion is extended to close the opening.