Ignition Device Dual Energy Store Voltage Converter
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Solution Overview
Problem
Conventional internal combustion engines face challenges in supplying power to electrical loads with high energy demands during starting operations, especially at low speeds, due to insufficient voltage and energy from traditional battery or generator systems.
Innovation Solution
An ignition device with a charging coil and two energy stores, where a voltage converter increases the voltage from a first energy store to charge a second energy store, enabling sufficient power supply to high-energy-demand loads like fuel-injection valves, even at low engine speeds, through a modular design that includes a control unit for efficient energy transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a battery or generator is used to supply electrical energy during starting process, then the electrical load can be powered, but the battery capacity decreases due to aging and the generator provides insufficient voltage and power at low speeds
Solution Approach 1:
The power supply system is segmented into multiple energy stores (first energy store connected to charging coil, second energy store connected to electrical load) that can be independently charged and discharged. This segmentation allows each energy store to be optimized for specific functions and enables reliable power supply during starting operations.
Solution Approach 2:
The system changes the voltage parameter by using a voltage converter to transform the charging voltage from the first energy store into a higher voltage suitable for charging the second energy store. This parameter transformation enables the second energy store to accumulate sufficient energy even when the charging coil operates at low speeds during starting.
2Power
If a single energy store is used to store charging voltage, then the structure is simple, but it cannot provide sufficient energy for electrical loads with high energy demand during starting operation
Solution Approach 1:
The energy storage function is divided between two energy stores: the first energy store handles charging from the charging coil, while the second energy store provides power to electrical loads with high energy demand. This segmentation enables the system to meet high energy requirements without requiring a single oversized energy store.
Solution Approach 2:
A voltage converter acts as an intermediary between the first energy store and the second energy store, enabling efficient energy transfer and voltage transformation. This intermediary component facilitates the charging of the second energy store from the first, allowing the system to provide sufficient energy for high-demand loads.
3Speed
If the charging coil operates at low speeds during starting, then the engine can be started, but the induced charging voltage is insufficient to power high energy demand loads
Solution Approach 1:
The voltage converter transforms the low charging voltage generated at low speeds into a higher voltage suitable for charging the second energy store. This parameter transformation allows the system to accumulate sufficient energy in the second energy store even when the charging coil operates at low speeds during engine starting.
Solution Approach 2:
The first energy store is charged in advance during the starting process, and then this stored energy is used to charge the second energy store via the voltage converter. This preliminary charging action ensures that sufficient energy is available in the second energy store to power electrical loads with high energy demand, even at low speeds.
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 solution ensures reliable operation of electrical loads with high energy demands during engine starting, even at low speeds, by efficiently charging and managing energy stores, thereby overcoming the limitations of traditional power supply methods.
Implementation Method 1
a charging coil for providing an induced charging voltage due to the rotational movement (rotation) of a starter wheel. In other words, the charging voltage in the charging coil is induced due to the rotational movement of the starter wheel
Data Source
AI summary
An ignition device for an internal combustion engine with a charging coil, in particular disposed on a yoke core, with a starter wheel to induce a charging voltage in the charging coil by its rotation, with a first energy store which is connected to the charging coil via a rectifier, as well as with an electrical load which for its power supply, in particular during the starting process of the internal combustion engine is connected to a second energy store, wherein the second energy store is connected to the first energy store via a voltage converter. Furthermore, the invention relates to an internal combustion engine with such an ignition device and a method for its operation.