Rear-Mounted Speed Warning Device for Truck Safety
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Solution Overview
Problem
Rear-end collisions in road traffic, particularly on busy routes like motorways, often result in significant property damage and injuries due to the large mass of trucks involved, which can cause immense damage without adequate protection, highlighting the need for enhanced traffic safety measures that are easy to install on motor vehicles.
Innovation Solution
A device positioned at the rear of a motor vehicle, equipped with a speed measuring device to determine relative speed and direction, a warning device to emit signals, and an electrical controller to assess warning criteria based on relative speed, lateral acceleration, and curve radius, allowing for automatic warning of following vehicles without distracting the driver of the equipped vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a warning device is installed to warn following vehicles of rear-end collision risks, then traffic safety is improved, but the driver of the equipped vehicle may be distracted or frightened by warning signals
Solution Approach 1:
The warning function is extracted from the driver's cab and positioned at the rear of the vehicle. The warning device emits signals in the direction of following vehicles rather than toward the driver, separating the warning function from the driver's operational space and eliminating distraction while maintaining safety warnings.
2Ease of manufacture
If the speed measuring device and warning device are positioned in the driver's cab, then integration is achieved, but connections and installations become complex and time-consuming
Solution Approach 1:
The device is segmented into separate functional modules: speed measuring device, acceleration measuring device, electrical controller, and warning device. These modules can be installed independently at the rear of the vehicle without requiring integration into the driver's cab, simplifying installation while maintaining functional completeness.
Solution Approach 2:
The electrical controller acts as an intermediary that processes data from the speed and acceleration measuring devices and controls the warning device. This mediator enables distributed positioning of components without requiring direct physical connections between all elements, reducing installation complexity.
3Reliability
If the warning signal is emitted toward the following vehicle, then the following driver is warned, but the equipped vehicle driver loses concentration on traffic ahead
Solution Approach 1:
The warning function is extracted from the driver's cab and positioned at the rear of the vehicle. The warning device emits signals in the direction of following vehicles rather than toward the driver, separating the warning function from the driver's operational space and eliminating distraction while maintaining safety warnings.
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 device effectively increases traffic safety by automatically warning following vehicles of potential collisions, reducing the risk of rear-end accidents without distracting the driver of the equipped vehicle and simplifying installation, especially on trucks with trailers or semi-trailers.
Implementation Method 1
a speed measuring device for determining a magnitude and a direction of a relative speed between an object and the device
Implementation Method 2
an acceleration measuring device for determining a transverse acceleration
Data Source
Figure 1
AI summary
The invention relates to a device (8) to be arranged on a motor vehicle (2). Said device (8) comprises a speedometer (4) for ascertaining a relative speed between an object and a device (8), at least one warning mechanism (6) for emitting a warning signal in the direction of the object, and an electric controller which is designed to emit a warning signal via the at least one warning mechanism (6) when the ascertained relative speed exceeds a predefined threshold value.