Electronic Wheel Unit Energy Control via Dynamic Frequency
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Solution Overview
Problem
Existing tire information systems face challenges in ensuring reliable operation of electronic wheel units across varying driving conditions due to limited energy availability from generators and the need for auxiliary batteries, which increases costs and reduces operational readiness, especially during critical situations like initialization and high-speed driving.
Innovation Solution
A method and apparatus that utilize state detection devices and energy detection devices to control the operation of electronic wheel units, allowing for adaptive energy consumption based on the wheel's operating state and available energy, ensuring reliable operation by selectively increasing energy usage during critical conditions and conserving energy during less critical states, eliminating the need for auxiliary batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a battery is provided inside the tire to supply energy for measuring tire parameters and radio transmission, then the electronic wheel unit can operate continuously, but the battery constitutes an unbalance that increases cost and reduces reliability due to weight and temperature constraints
Solution Approach 1:
The patent extracts the battery from the tire environment and places it in the vehicle body, separating the energy storage function from the tire monitoring function. This eliminates the need for the battery to withstand extreme temperature and weight constraints while ensuring continuous operation of the electronic wheel unit.
Solution Approach 2:
The patent introduces a wireless communication intermediary that transmits data from the tire sensor to the vehicle body control unit, eliminating the need for direct electrical connections and auxiliary batteries at the wheel level, thereby simplifying the system architecture.
2Reliability
If the electronic wheel unit operates at high transmission frequency during all driving conditions, then operational readiness is improved, but energy consumption increases beyond what the generator can provide
Solution Approach 1:
The patent implements dynamic transmission frequency adjustment where the electronic wheel unit adapts its transmission frequency based on the vehicle's driving state and energy availability. During critical phases like initialization or braking, transmission frequency increases to ensure data reliability, while during normal cruising, frequency decreases to conserve energy within generator limits.
Solution Approach 2:
The patent changes the operational parameters of the electronic wheel unit based on detected driving conditions, adjusting transmission frequency and measurement intervals to optimize the balance between operational readiness and energy consumption from the generator.
3Reliability
If auxiliary batteries are added to ensure reliable operation during critical situations, then operational readiness improves, but device complexity and cost increase
Solution Approach 1:
The patent removes the auxiliary battery requirement by extracting the power supply function to the vehicle's main battery system and using wireless communication for data transmission, thereby simplifying the power supply architecture while maintaining reliability during critical operations.
Solution Approach 2:
The patent makes the vehicle's existing power and communication systems serve multiple functions - the main battery supplies power to both the vehicle systems and the tire monitoring electronics wirelessly, eliminating the need for dedicated auxiliary batteries at each wheel.
4Device complexity
If the generator supplies all energy for the electronic wheel unit, then auxiliary batteries are eliminated, but energy availability is insufficient during high-demand situations
Solution Approach 1:
The patent implements periodic energy harvesting from the generator during normal operation to recharge an energy storage device, creating a cyclical pattern of energy accumulation and consumption that ensures sufficient energy availability during high-demand critical situations while maintaining system simplicity.
Solution Approach 2:
The patent performs preliminary energy accumulation during low-demand periods by charging the energy storage device from the generator, preparing energy reserves in advance for critical situations before they occur, thereby ensuring energy availability without requiring auxiliary batteries.
Data Source
AI summary
A device and a method control the operation of an electronic wheel unit that is allocated to a vehicle wheel. The method includes recording data relating to the operating conditions of the wheel using at least one condition recording unit and/or recording data relating to the energy that is currently available to the electronic wheel unit from a generator and/or an energy accumulator device using at least one energy recording unit. The operation of the electronic wheel unit and the defined energy consumption of the electronic wheel unit is controlled in accordance with the data that has been recorded by the condition recording unit and/or the energy recording unit using a central control unit that is connected to the condition recording unit and/or the energy recording unit.