Variable Voltage Glow Plug Power Supply for Engine Speed Adaptation
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Solution Overview
Problem
Current glow plugs in two-stroke and four-stroke gasoline engines operate with constant voltage, leading to excessive energy consumption and reduced battery life due to high heat conditions during engine operation, especially at high speeds.
Innovation Solution
A revolving speed variable voltage power supply system that adjusts voltage output based on engine speed, using an adjust device, switch device, and rectify device to provide different voltages to the glow plug, reducing power consumption and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant voltage is supplied to the glow plug, then the heating wire maintains constant high temperature for reliable ignition, but battery life is reduced and energy consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning from constant voltage supply to variable voltage supply based on engine speed. The power supply device adjusts voltage dynamically: providing higher voltage at low engine speeds for reliable ignition, and reducing voltage at high speeds when cylinder temperature already facilitates ignition, thereby extending battery life while maintaining ignition reliability.
Solution Approach 2:
The patent changes the voltage parameter supplied to the glow plug based on engine operating conditions. By monitoring engine speed and adjusting voltage accordingly (higher voltage at low speeds, lower voltage at high speeds), the system optimizes both ignition reliability and energy consumption, directly resolving the contradiction between reliable ignition and battery life extension.
2Reliability
If constant high voltage is supplied to the glow plug, then ignition is reliable at all speeds, but energy consumption increases and battery life decreases
Solution Approach 1:
The system dynamically adjusts voltage output based on real-time engine speed detection. At low engine speeds where ignition is difficult, high voltage is supplied for reliable ignition. At high engine speeds where cylinder temperature already aids ignition, voltage is reduced, thereby lowering power consumption while maintaining sufficient ignition reliability.
Solution Approach 2:
The patent implements parameter changes by varying the voltage supplied to the glow plug according to engine speed conditions. This adaptive voltage adjustment ensures reliable ignition when needed (low speeds) while reducing energy consumption when conditions permit (high speeds), effectively resolving the contradiction between ignition reliability and power consumption.
3Reliability
If the glow plug operates continuously at high temperature, then ignition is maintained, but the service life of the glow plug is shortened
Solution Approach 1:
The patent applies dynamics by adjusting the voltage supplied to the glow plug based on engine speed. At high engine speeds, the reduced voltage requirement allows the glow plug to operate at lower temperatures while maintaining ignition capability, thereby reducing thermal stress and extending service life while preserving ignition reliability.
Solution Approach 2:
The system changes the voltage parameter supplied to the glow plug according to operating conditions. By providing lower voltage at high engine speeds, the glow plug heating element operates at reduced temperature, decreasing degradation rate and extending service life while maintaining sufficient ignition capability through the synergistic effect of reduced voltage and higher engine speed conditions.
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 effectively reduces power consumption and increases battery life by automatically controlling voltage and ignition temperature, ensuring stable operation without affecting engine performance.
Implementation Method 1
After the electric heating wire is energized, the heating wire generates a high temperature much higher than the ignition point of the fuel-air mixture
Data Source
AI summary
The present disclosure provides a revolving speed variable voltage power supply for a glow plug of a two-stroke or four-stroke gasoline engine, including: an adjust device configured for outputting different control commands according to different revolving speeds of the two-stroke or four-stroke gasoline engine; a switch device connected to the adjust device, and configured for controlling an ON/OFF of a circuit according to the different control commands; a rectify device connected to the adjust device and the switch device, and configured to provide different voltages to the glow plug according to the different control commands and/or the ON/OFF of the switch device. According to the present disclosure, the effects of automatic control of voltage, ignition temperature, etc. can be achieved, the power consumption of the battery carried by the model can be effectively reduced, and the battery life and use stability can be increased.