Steering Wheel Heating System Using Step-Up Transformer
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Solution Overview
Problem
Existing steering wheel heating systems in vehicles take longer to heat up due to low voltages supplied to the resistive mesh, resulting in an uncomfortable experience for drivers in cold weather.
Innovation Solution
A steering wheel heating system that includes a conductive element surrounded by a resistive mesh, a power supply, and a step-up transformer to increase the voltage supplied to the mesh, along with a controller and switching element to manage the heating based on temperature readings, ensuring faster heating and efficient energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a resistive mesh is used to heat the steering wheel, then the steering wheel can be heated, but the heating time is slow due to low voltage supply
Solution Approach 1:
A transformer is introduced as an intermediary device between the power supply and the resistive mesh. The transformer converts the low voltage from the power supply to a higher voltage, which then heats the steering wheel more quickly. This intermediary device resolves the contradiction by enabling faster heating without modifying the power supply itself.
Solution Approach 2:
The voltage parameter is changed from low to high through the use of a transformer. By transforming the voltage level, the heating rate of the steering wheel is significantly improved, reducing the heating time while maintaining the same power supply source.
2Loss of time
If voltage is increased to heat the steering wheel faster, then heating time is reduced, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts the voltage supplied to the resistive mesh based on the steering wheel's temperature. A controller monitors the temperature and adjusts the transformer's output voltage accordingly, providing high voltage only when needed for rapid heating, and reducing voltage when the desired temperature is approached, thereby optimizing energy consumption.
Solution Approach 2:
A temperature sensing system provides feedback to the controller, which then adjusts the voltage output of the transformer. This closed-loop feedback mechanism ensures that energy is consumed efficiently by providing high power only when the steering wheel needs heating, and reducing or stopping power supply when the target temperature is reached.
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 quickly heats the steering wheel by increasing the voltage and current, reducing the time to reach a comfortable temperature and optimizing energy consumption by adjusting the voltage supply based on the steering wheel's temperature.
Implementation Method 1
a transformer connected between the power supply and the conductive element and configured to receive the input voltage and provide an increased output voltage to the conductive element
Implementation Method 2
Steering wheels may include conductive resistive meshes configured to heat the steering wheel when voltage is applied
Data Source
AI summary
A heating system for a vehicle steering wheel may include a conductive element surrounding at least a portion of the steering wheel, a power supply for the conductive element configured to provide an input voltage, and a transformer between the power supply and the conductive element and configured to receive the input voltage and provide an output voltage higher than the input voltage to the conductive element for heating the steering wheel.