Reverse Thrust Air Braking for High-Speed Emergency Stops
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Solution Overview
Problem
Current braking systems, such as hydraulic and ABS systems, are inadequate for effectively stopping vehicles traveling at high speeds during emergency braking situations, posing a risk to road safety.
Innovation Solution
A modified reverse thrust system, inspired by aircraft braking systems, uses propeller fan blades and a series of chambers to accelerate and equalize air velocity, creating a reverse thrust, which is controlled by sensors to assist in halting vehicles during high-speed emergencies, potentially integrated with existing braking systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hydraulic or ABS braking systems are used, then braking control is improved, but stopping effectiveness at high speeds deteriorates
Solution Approach 1:
The patent employs pneumatic principles by using air as the working fluid to generate reverse thrust. A fan accelerates air through a series of chambers, creating a high-velocity jet that produces reverse thrust to counteract the vehicle's forward motion at high speeds, thereby improving stopping effectiveness beyond conventional hydraulic/ABS systems.
Solution Approach 2:
The system changes the physical parameters of air by accelerating it through multiple chambers with increasing velocity. The air enters at low velocity and exits at high velocity, transforming the kinetic energy parameters to generate sufficient reverse thrust for effective high-speed braking.
2Speed
If reverse thrust system is implemented, then stopping distance is reduced, but device complexity increases
Solution Approach 1:
The reverse thrust system is divided into multiple discrete chambers arranged in sequence. Each chamber contributes to progressively accelerating the air, and the segmented structure allows for modular design and manufacturing while achieving the cumulative effect of high-velocity exhaust for reduced stopping distance.
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 system effectively reduces vehicle speed by creating a controlled reverse thrust, enhancing road safety by potentially reducing braking distances and preventing accidents during emergency stops.
Implementation Method 1
an inlet having propeller fan blades that accelerate air coming into the system
Implementation Method 2
uses the Continuity equation for incompressible fluids to control and increase the velocity of the air entering the device
Implementation Method 3
The exit point receives air from a last chamber in the linearly arranged plurality of chambers and exhausts the air from the system at an angle to create a reverse thrust
Data Source
AI summary
A reverse thrust braking system includes an inlet having propeller fan blades that accelerate air coming into the system. A plurality of chambers receive the air accelerated through the inlet by the propeller fan blades. An exit point receives air from at least one of the plurality of chambers and exhausts the air from the system. The exit point exhausts air at an angle to create a reverse thrust.