ISO 6518-2:1995 PDF

Road vehicles — Ignition systems — Part 2: Electrical performance and function test methods

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Title (English):

ISO 6518-2:1995

Road vehicles — Ignition systems — Part 2: Electrical performance and function test methods

Document status:: Withdrawn
Format:: Electronic (PDF)
Number of pages:: 10
Publication date:: March 16, 1995
Edition:: ISO IS 6518 edition 2 version 1
ICS:: 43.060.50

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Description (English):

Cancels and replaces the first edition (1982). Lays down the methods and test conditions for testing battery-supplied ignition systems for spark-ignited internal combustion engines. Gives two methods of obtaining the results necessary for calculating the system output energy.

Technical details

Technical committee: ISO/TC 22/SC 32 - Electrical and electronic components and general system aspects
SKU: ISO 6518-2:1995

Abstract

Overview - ISO 6518-2:1995 (Ignition systems test methods)

ISO 6518-2:1995 specifies electrical performance and function test methods for battery‑supplied ignition systems used on road vehicles with spark‑ignited internal combustion engines. This second edition replaces the 1982 version and introduces two standardized test approaches (Method A and Method B) to obtain the parameters needed to calculate system output energy. The standard is intended for repeatable bench testing of ignition coils, distributors, switching devices and complete ignition systems.

Key topics and technical requirements

Two test arrangements
- Method A (spark gaps) - measures inductive spark energy (Espi) using controlled spark gaps; output called spark energy.
- Method B (Zener diode string) - measures Zener discharge energy (Ezd) with Zener diode strings (1 kV for single‑ended coils; 1 kV and 0.5 kV for double‑ended coils); recommended for comparative coil and current‑interruption testing.
Components and system configurations
- Single‑ended and double‑ended coils, ballast resistors, distributors (mechanical or distributorless), auxiliary switching devices and plug‑top coils.
Measured parameters
- Available voltage (Uav), minimum available voltage (Uavm), secondary output voltage (Us), spark/Zener discharge duration, maximum spark/discharge current (Ispm / Izdm), secondary voltage rise time, coil primary induced voltage (Upind), ignition‑limiting load resistance (R15kV), average current input.
- Energy calculations: Espi and Ezd are calculated by integrating measured voltage × current over the spark/discharge duration.
Test equipment and limits
- Oscilloscope: ≤35 ns rise time, ≥10 MHz bandwidth; overall measurement uncertainty

Related standards

Other ISO standards

Overview - ISO 6518-2:1995 (Ignition systems test methods)

Key topics and technical requirements

Two test arrangements
- Method A (spark gaps) - measures inductive spark energy (Espi) using controlled spark gaps; output called spark energy.
- Method B (Zener diode string) - measures Zener discharge energy (Ezd) with Zener diode strings (1 kV for single‑ended coils; 1 kV and 0.5 kV for double‑ended coils); recommended for comparative coil and current‑interruption testing.
Components and system configurations
- Single‑ended and double‑ended coils, ballast resistors, distributors (mechanical or distributorless), auxiliary switching devices and plug‑top coils.
Measured parameters
- Available voltage (Uav), minimum available voltage (Uavm), secondary output voltage (Us), spark/Zener discharge duration, maximum spark/discharge current (Ispm / Izdm), secondary voltage rise time, coil primary induced voltage (Upind), ignition‑limiting load resistance (R15kV), average current input.
- Energy calculations: Espi and Ezd are calculated by integrating measured voltage × current over the spark/discharge duration.
Test equipment and limits
- Oscilloscope: ≤35 ns rise time, ≥10 MHz bandwidth; overall measurement uncertainty

ISO 6518-2:1995 PDF

Technical details

Abstract

Overview - ISO 6518-2:1995 (Ignition systems test methods)

Key topics and technical requirements

Related standards

Abstract

Overview - ISO 6518-2:1995 (Ignition systems test methods)

Key topics and technical requirements

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