Steering Wheel Current Transmission Device Temperature Control
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Solution Overview
Problem
Existing transmission devices for electrical current to steering wheel components in vehicles lack safety and efficiency, particularly in maintaining safe temperature levels during rotation, which can lead to component damage.
Innovation Solution
A transmission device with a rotatable rotor connected to the steering wheel and a stationary stator, using a conductor element and temperature determination device with sensors to monitor temperature and adjust current flow based on a temperature model, including current intensity, voltage drop, and power loss, to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conductor element is used to transmit electrical current to steering wheel components, then electrical connectivity is achieved, but temperature increase and overheating risk occur
Solution Approach 1:
The system performs preliminary temperature monitoring and extrapolation to predict future temperature states before actual overheating occurs. By using a temperature model to extrapolate temperature profiles based on current measurements, the system takes preventive action in advance to avoid the harmful effect of overheating.
Solution Approach 2:
The system continuously monitors the temperature of the conductor element and feeds this information back to the control unit. Based on this feedback, the control unit can adjust the current transmission to prevent temperature from exceeding safe thresholds, creating a closed-loop control system that balances electrical connectivity with temperature management.
2Reliability
If temperature monitoring is implemented to prevent overheating, then safety is improved, but device complexity increases
Solution Approach 1:
The system uses the existing electrical parameters (current, voltage) already present in the conductor element to derive temperature information through a temperature model. This self-service approach allows temperature monitoring without requiring separate complex sensing systems, as the conductor element itself provides the necessary data for temperature estimation.
Solution Approach 2:
The system changes the approach from direct temperature measurement to indirect temperature determination by using electrical parameters (current intensity, voltage drop, power loss) to calculate and extrapolate temperature profiles. This parameter transformation simplifies the monitoring system by leveraging existing electrical measurements rather than requiring additional temperature sensors.
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
Ensures safe and efficient transmission of electrical current to steering wheel components by preventing overheating through real-time temperature monitoring and control, reducing the risk of component damage.
Implementation Method 1
The temperature determination device comprises at least one temperature sensor, which is arranged, for example, on the conductor element. For example, a thermocouple is used as a temperature sensor
Implementation Method 2
at least one conductor element, via which the rotor is electrically connected to the stator
Implementation Method 3
a voltage drop across the conductor element and/or a power loss to extrapolate the temperature profile
Data Source
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AI summary
The transmission device (1) has a rotor (2) which is arranged on steering wheel and rotated together with steering wheel. A stator (3) is arranged on a stationary with respect to rotational movement of steering wheel of vehicle component. A conductor element (4) is electrically connected to stator through rotor. The temperature of the conductor element is determined by temperature sensor (5). : An independent claim is included for method for transmitting electric current to component of steering wheel of motor vehicle. USE : Transmission device for transmitting electric current to electrical or electronic component of steering wheel of motor vehicle. ADVANTAGE : The current flowing through conductor element is interrupted, when the temperature measured by the sensor exceeds a threshold, so that the destruction of conductive tape by the effect of temperature can be prevented. DESCRIPTION OF DRAWINGS : The drawing shows a perspective view of the transmission device. 1 : Transmission device 2 : Rotor 3 : Stator 4 : Conductor element 5 : Temperature sensor.