Combined Speed and Temperature Sensor for Vehicle Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing monitoring systems for vehicle components, such as gear wheels, require separate sensors for speed and temperature measurement, which complicates installation and increases vulnerability to harsh operating conditions.
Innovation Solution
A combined sensor element with a speed sensor and temperature sensor embedded in a moisture-tight protective body, featuring a fastening element for correct positioning and an optional capacitor for EMC protection, simplifies installation and enhances durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate speed sensor and temperature sensor are used, then each sensor can be optimized for its specific function, but the installation complexity increases and the system becomes more vulnerable to harsh operating conditions
Solution Approach 1:
The patent combines a speed sensor and a temperature sensor into a single integrated sensor unit with a common protective body. This merging of previously separate sensors into one unified device reduces installation complexity while maintaining the functional optimization of each sensor type, directly resolving the technical contradiction between reliability and device complexity.
Solution Approach 2:
The integrated sensor unit serves multiple functions simultaneously - it monitors both rotational speed and temperature in one device. This multi-functionality allows the system to achieve comprehensive monitoring capability without requiring multiple separate sensors, thereby reducing installation complexity while maintaining or enhancing overall system reliability.
2Measurement precision
If separate speed sensor and temperature sensor are installed independently, then each sensor can be positioned optimally, but the installation process becomes more time-consuming and complex
Solution Approach 1:
By integrating both sensors into a single unit with a unified protective body, the patent enables simultaneous installation of both sensors in one operation. This eliminates the need for separate installation processes while maintaining the optimal positioning capabilities of individual sensors, thus reducing installation time without compromising measurement precision.
3Device complexity
If sensors are exposed without protective body, then the structure is simpler, but the sensors are damaged by harsh operating conditions
Solution Approach 1:
The patent employs a protective body that envelops both sensors, providing a protective shell that shields them from harsh operating conditions such as moisture, dust, and extreme temperatures. This protective enclosure maintains relatively simple structural complexity while dramatically improving resistance to harmful environmental factors.
4Ease of operation
If combined sensor element is used, then installation is simplified and durability is enhanced, but the device structure becomes more integrated
Solution Approach 1:
The patent merges multiple sensors and their protective structures into a single integrated unit, which simplifies installation operations by reducing the number of separate components to be installed. While the internal structure becomes more integrated, this design choice directly improves ease of operation during installation and maintenance.
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
Enables simultaneous and accurate monitoring of speed and temperature with improved resistance to harsh conditions, ensuring reliable performance in vehicle operations.
Implementation Method 1
a speed sensor 11, in particular a Hall sensor, which reacts to a change in a magnetic field acting on it
Implementation Method 2
The temperature sensor 12 is advantageously an electrical resistor with a negative temperature coefficient, a so-called NTC resistor
Data Source
AI summary
An arrangement is provided for monitoring the rate of rotation of a structural component rotating about its axis and arranged in a motor vehicle in the immediate vicinity of the structural component. The speed sensor (11) is connected through an electrical line to an evaluating unit arranged in the motor vehicle, and the speed sensor (11) is connected together with a temperature sensor (12), which is also connected through an electrical line to an evaluating unit arranged in the motor vehicle, where the two sensors (11, 12) are arranged on a carrier of mechanically stable synthetic material which extends beyond the line.