Powertrain Management: Description and Operation

System Outline

1. Fuel Injection Control (Independent Injection Type)
Engine control module outputs the injection signal to the injector after the basic injection time is calculated based on the engine condition and is corrected according to the engine coolant temperature sensor signal.

2. Ignition Control
Engine control module outputs the ignition signal to the igniter after the basic ignition time is calculated based on the engine condition and is corrected according to the engine coolant temperature sensor signal.

3. Engine Speed Control
The electronic throttle control system is adopted, which conducts first idle speed control according to the engine coolant temperature and idle speed control after warm-up.

4. Diagnosis Control
Malfunction of sensors and actuators is diagnosed, and fail-safe function is conducted, based on input and output signals of ECU.