Ignition Control Apparatus Dynamic Timing Synchronization
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Solution Overview
Problem
Existing ignition control systems for internal combustion engines struggle to maintain proper ignition timing as engine rotational speed changes, leading to synchronization issues between ignition coil control operations and engine speed.
Innovation Solution
An ignition control apparatus that uses a control unit to determine the discharge timing of the ignition coil based on a pulse signal, adjusting the energization and discharge timings to synchronize with the engine's rotational speed, and includes a switch element to control the ignition coil's energization and discharge accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed circuit constants are used to determine ignition timing, then the ignition control apparatus is simple in structure, but the ignition timing cannot be properly synchronized when engine rotational speed changes
Solution Approach 1:
The patent applies the dynamics principle by making the ignition timing adjustable based on engine rotational speed. The control unit dynamically changes the ignition timing according to the detected rotational speed, transitioning from fixed circuit constants to a dynamic control system that adapts to varying operating conditions, thereby resolving the contradiction between structural simplicity and timing synchronization reliability
Solution Approach 2:
The patent implements feedback by using the rotational speed detection unit to continuously monitor engine speed and feed this information back to the control unit. The control unit then adjusts the ignition timing based on this feedback, creating a closed-loop control system that ensures proper synchronization across different rotational speeds while maintaining reasonable structural complexity
2Productivity
If the engine rotational speed increases, then the productivity of the engine improves, but it becomes more difficult to synchronize the ignition coil control operations with the rotational speed
Solution Approach 1:
The patent applies dynamics by implementing a control system that dynamically adjusts ignition timing parameters in response to varying rotational speeds. As engine speed increases, the control unit modifies the timing to maintain synchronization, allowing the engine to operate efficiently at high speeds without sacrificing ignition reliability
Solution Approach 2:
The patent uses parameter changes by varying the ignition timing parameters based on rotational speed. The control unit changes timing parameters dynamically as speed increases, ensuring that the ignition system remains synchronized with the engine's operational节奏, thereby maintaining both productivity and reliability across the operating range
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
This solution stabilizes the ignition operation by ensuring accurate timing adjustments based on engine speed, preventing synchronization issues and maintaining consistent ignition performance across varying rotational speeds.
Implementation Method 1
This type of ignition control apparatus operates using, as a power supply, the electric power generated by an ignition coil along with rotation of an internal combustion engine, and controls initiation and termination (discharge) of energization of the ignition coil
Data Source
AI summary
An ignition control apparatus according to one embodiment of the present invention is an ignition control apparatus which generates, in an ignition coil, a voltage to be supplied to a spark plug that is provided in an internal combustion engine on the basis of a pulse signal induced in the ignition coil of the internal combustion engine, wherein the ignition control apparatus comprises at least a switch element for passing current through and discharge the ignition coil, and a controlling unit that acquires the timing for discharge the ignition coil in response to a first pulse of the pulse signal, and controls the switch element so that a current flows through the ignition coil in response to a second pulse that follows the first pulse and the ignition coil is opened on the basis of the discharge timing acquired in response to the first pulse.