Ignition System Configuration - TunerStudio

Konfigurasi komprehensif untuk sistem ignition ECU Mazduino. Menu Ignition menyediakan kontrol detail atas berbagai aspek ignition system untuk performance, efficiency, dan safety requirements.

Ignition Menu

Menu Ignition menawarkan multiple opsi konfigurasi untuk tuning berbagai pengaturan terkait ignition dalam ECU. Sistem ignition yang dikonfigurasi dengan benar essential untuk performance engine yang optimal.

Submenu yang Tersedia:

Ignition Settings: Primary configuration settings untuk ignition, termasuk tipe ignition system dan timing control
Ignition Advance: Adjustment ignition timing advance table berdasarkan engine load dan RPM
Ign CLT Correction: Timing adjustments berdasarkan Coolant Temperature (CLT)
Ign IAT Correction: Adjustments timing berdasarkan Intake Air Temperature (IAT)
Dwell: Kontrol dwell time - waktu ignition coil di-energize sebelum firing
Ignition Blend Tables: Custom tables untuk blend ignition timing values
Cylinder Ign Trims: Individual cylinder ignition timing adjustments
Multispark: Multiple sparks per cycle pada lower RPMs untuk improved combustion
Knock Control: Konfigurasi knock detection dan response
Max Knock Retard: Maximum degree timing retardation untuk knock response

Ignition Settings

Ignition Mode Configuration

Mode dropdown untuk memilih tipe konfigurasi ignition system:

Single Coil

Aplikasi: Distributor-based systems
Karakteristik: Single coil melayani semua cylinders
Kabel: One coil output ke distributor

Individual Coils

Aplikasi: Coil-on-plug atau coil-near-plug setups
Requirement: Sequential injection mode
Karakteristik: One coil per cylinder untuk precise timing

Wasted Spark

Aplikasi: Paired cylinders fire together
Konfigurasi: One coil per pair atau one coil per cylinder
Keuntungan: Simpler ignition system setup

Two Distributors

Aplikasi: Pair distributors, umum pada certain BMW, Toyota engines
Karakteristik: Dual distributor configuration

Timing Parameters

Maximum/Minimum Limits

Maximum Timing Advance (deg BTDC): Membatasi maximum timing advance untuk safe ignition settings

Minimum Timing Advance (deg BTDC): Mencegah timing retard terlalu jauh, melindungi engine

Validation and Override

Use Fixed Timing While Validating: Menggunakan fixed timing untuk validasi dengan timing gun

Override Ignition Table Load Axis: Override load axis ignition table dengan custom axis

Timing Mode

Dynamic: Menggunakan ignition timing map untuk menentukan timing secara dinamis selama engine operation

Static: Fix timing ke specified value untuk verifikasi static timing dengan timing light

Ignition Outputs

Wiring Configuration

Wire each output ke cylinder number secara langsung
Firmware (rusEFI) mengelola firing order secara internal
Ignition Output Mode: Customization bagaimana outputs berperilaku

Important Notes

Timing Validation: Gunakan timing gun dengan static timing mode untuk verify alignment
Sequential Ignition: Ensure sequential mode untuk Individual Coils configuration
Wasted Spark Mode: Verify coil pairing dan firing order correct

Ignition Timing Table

Ignition Table

Ignition Table mengkonfigurasi spark timing berdasarkan RPM (horizontal axis) dan engine load (vertical axis). Essential untuk fine-tuning engine performance, efficiency, dan safety.

Example Analysis - High-Compression Turbocharged Engine

High Compression and Turbocharged Timing

Boosted regions: Ignition timing conservative (lower values) untuk avoid pre-ignition
Example: 200 kPa, 3000 RPM = 7.6 degrees BTDC
Safety: Critical untuk turbocharged engines

Deceleration Burble

Lower load values: Negative atau very low timing values
Purpose: Intentionally delayed ignition untuk burble/popping sound
Application: Aesthetic atau performance sound tuning

Mid-Range Efficiency

Mid-load/mid-RPM: 75 kPa, 2500 RPM regions
Timing values: 25-35 degrees BTDC
Optimization: Fuel efficiency dan smooth power delivery

High RPMs

Higher RPMs/moderate loads: Timing slightly advanced
Example: 37.5 degrees pada 100 kPa dan 7000 RPM
Balance: Maintain performance tanpa knocking

Tuning Guidelines

Turbocharged Engines

Monitor carefully: Timing dalam high-boost areas untuk safety
Use knock sensors: Data logging untuk detect potential detonation
Conservative approach: Start dengan lower timing values

Deceleration Effects

Burble effect: Hanya gunakan di regions dengan fuel cut-off active
Prevent fuel waste: Avoid excessive fuel consumption

Engine-Specific Considerations

Timing values: Heavily dependent pada engine design, fuel type, compression ratio
Guidelines only: Table ini reference, mungkin tidak applicable untuk all setups

Dwell Configuration

Dwell Settings

Dwell Settings menyediakan kontrol critical atas ignition coil charge time, yang mempengaruhi spark energy dan ignition system performance.

Dwell Time Base (Top Graph)

Purpose dan Function

Adjusts: Base dwell time (ms) relative terhadap engine RPM
Lower RPMs: Higher dwell time (3.60 ms pada 0 RPM) untuk fully charge coil
Higher RPMs: Decreased dwell time (2.60 ms pada 7000 RPM) untuk shorter cycle times

Tuning Considerations

Excessive high dwell: Dapat menyebabkan coil saturation dan heat damage
Too low dwell: Dapat mengakibatkan weak sparks atau misfires

Dwell Voltage Correction (Bottom Graph)

Voltage Compensation

Lower battery voltages: Increased dwell time (multiplier > 1.0) untuk compensate reduced charging efficiency
Higher voltages: Reduced dwell time (multiplier < 1.0) untuk prevent overheating
Example: 8.0V = 1.40 multiplier, 16.0V = 0.80 multiplier

Implementation Notes

Voltage table: Essential untuk engines dengan weak electrical systems
Compensation vital: Untuk vehicles running additional electrical loads

General Guidelines

RPM Table Values

Start values: 2.0-4.0 ms pada idle
Progression: Reduce as RPM rises
Manufacturer specs: Always refer untuk avoid coil damage

Battery Voltage Considerations

Compensation critical: Untuk reliable ignition performance
System monitoring: Track voltage levels selama operation

Advanced Ignition Features

Multispark Configuration

Purpose dan Benefits

Lower RPMs: Multiple sparks per cycle
Improved combustion: Better idle stability
Performance applications: Enhanced ignition reliability

Configuration Parameters

RPM threshold: Below which multispark activates
Number of sparks: Sparks per combustion cycle
Spark spacing: Time between individual sparks

Knock Control System

Knock Detection

Sensitivity adjustment: Configure knock sensor responsiveness
Frequency filtering: Isolate actual knock dari background noise
Threshold setting: Determine knock detection levels

Knock Response

Timing retard: Automatic timing reduction saat knock detected
Recovery strategy: Gradual timing advance restoration
Protection limits: Maximum retard values untuk engine protection

Cylinder Individual Trims

Purpose

Individual adjustment: Fine-tune setiap cylinder independently
Compensation: Account untuk cylinder-to-cylinder variations
Performance optimization: Maximize power output per cylinder

Implementation

Trim values: Degrees of advance/retard per cylinder
Monitoring: Track individual cylinder performance
Balancing: Achieve consistent power delivery

Troubleshooting Ignition Issues

Common Problems

Poor Ignition Performance

Symptoms: Misfires, rough idle, poor acceleration Solutions: - Check dwell settings untuk appropriate coil charging - Verify timing table values reasonable - Ensure proper ignition mode selection

Knock Detection Issues

Symptoms: False knock detection atau inability untuk detect real knock Solutions: - Adjust knock sensor sensitivity - Review timing table untuk excessive advance - Check knock sensor mounting dan wiring

Coil Overheating

Symptoms: Coil failure, reduced spark energy Solutions: - Reduce dwell time pada high RPM - Check voltage compensation table - Verify coil specifications match settings

Diagnostic Procedures

Timing light verification: Check actual vs commanded timing
Dwell monitoring: Measure actual dwell time vs settings
Knock logging: Monitor knock events dan responses
Coil temperature: Check untuk overheating conditions

Rekomendasi Berdasarkan Application

Street/Daily Driving

Conservative timing: Prioritize reliability over maximum power
Knock protection: Active knock control essential
Smooth operation: Focus pada idle stability dan drivability

Performance/Racing

Aggressive timing: Extract maximum power dengan careful monitoring
Data logging: Continuous monitoring essential
Component quality: High-performance ignition components required

Forced Induction

Conservative boost timing: Prevent detonation di high boost conditions
Temperature compensation: Active CLT dan IAT corrections
Safety margins: Extra conservative approach untuk reliability

Selanjutnya: Cranking Configuration