Ignition Drive Module Stabilizing Performance via Integrated Logic
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Solution Overview
Problem
Existing ignition systems face challenges in achieving stable performance and reliable function due to the need for precise matching of ignition coils with dedicated drive circuits, which can be unreliable and prone to disturbances.
Innovation Solution
An ignition drive module comprising a comparator, maximum dwell timer module, logical judgment module, insulated gate bipolar transistor, and a triode connected to the module signal output end, with features like a peak filter, dwell time input end, and soft-off switch to stabilize and control the ignition process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated drive circuits are designed for each ignition coil to meet functional requirements, then ignition performance can be optimized, but system complexity and matching requirements increase
Solution Approach 1:
The ignition drive module integrates multiple functions (comparator, maximum dwell timer, logical judgment, IGBT control) into a single universal module that can work with different ignition coils, eliminating the need for dedicated drive circuits for each coil while maintaining optimized ignition performance
Solution Approach 2:
The patent combines the drive circuit and ignition coil into an integrated module where the drive circuit is directly connected to the ignition coil, simplifying the system architecture and reducing matching complexity between separate components
2Reliability
If precise matching between ignition coils and drive circuits is implemented, then functional requirements are met, but system stability decreases due to potential disturbances
Solution Approach 1:
The module incorporates a comparator that monitors signals and provides feedback control, along with a maximum dwell timer that regulates operation duration, creating a stable feedback mechanism that maintains system stability while meeting functional requirements
Solution Approach 2:
The logical judgment module预先 judges signal conditions and prepares control decisions before disturbances occur, and the maximum dwell timer pre-limits operation duration to prevent potential instability issues
3Reliability
If multiple control modules are integrated into a single ignition drive module, then system reliability improves, but device complexity increases
Solution Approach 1:
The patent merges the comparator, maximum dwell timer, logical judgment module, and IGBT control into a single integrated ignition drive module, improving reliability through unified control while managing complexity through functional integration
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 provides a stable and reliable ignition drive module that supports single-end input, suppresses ground shift disturbances, filters input spikes, and offers programmable dwell time and current limiting, ensuring consistent ignition performance and efficient spark control.
Implementation Method 1
the ignition coil is an executive component that provides ignition energy for igniting the air and fuel mixture in the engine cylinder. It is a special pulse booster based on the principle of electromagnetic induction.
Data Source
AI summary
Disclosed is an ignition drive module with stable performance and reliable function, which comprises a module signal input end, a voltage input end, a module signal output end, a comparator connected to the module signal input end a maximum dwell timer module connected to the comparator, a logical judgment module connected to the comparator, and an insulated gate bipolar transistor connected to the logical judgment module. The logical judgment module receives signals from the maximum dwell timer module and the comparator to determine whether to activate the insulated gate bipolar transistor. The output end of the insulated gate bipolar transistor is connected to the module signal output end.