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Home › Automotive Engine › Archive for Diesel Engine Control System

Diesel Engine Control System

Outline and Operation of Intake Shutter

Posted on December 30, 2010 by b1r2i3a4n5

The intake shutter is mounted on the intake manifold. The intake shutter is fully open when the engine is operating. To stop the engine, the VSV operates in accordance with the signals from the ECU, and (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, Intake, System

Diesel Throttle Outline (1CD-FTV/15B-FTE)

Posted on December 29, 2010 by b1r2i3a4n5

The diesel throttle is mounted on the intake manifold. The throttle valve, which operates independently from the accelerator pedal, uses the diesel throttle control motor (step motor) to regulate the throttle (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, System, throttle

Diesel Engine Fuel Pressure Control

Posted on December 28, 2010 by b1r2i3a4n5

Determining Common-rail Fuel Pressure

A fuel pressure that matches the operating conditions of the engine is calculated according to the actual injection volume that has been determined based on the signals (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, Fuel, System

Determining Injection Timing Reference

Posted on December 28, 2010 by b1r2i3a4n5

Conventional EFI-diesel

Common-rail EFI-diesel

4. Comparison of the target injection timing and the actual injection timing

As with the convention EFI-diesel, the basic injection timing of the (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Gasoline, injection, System

Other Types of Diesel Engine Controls

Posted on December 27, 2010 by b1r2i3a4n5

1. Engine speed correction control

Symptom:

Increased injection volume due to a rise in the pressure in the pump.

Description of control:

Injection volume reduced according to the engine speed.

2. (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, System

Determining Injection Timing

Posted on December 27, 2010 by b1r2i3a4n5


The ECU performs the following functions to determine the injection timing:

Conventional EFI-diesel

1. Determination of the target injection timing

2. Detection of the actual injection timing

3. (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, injection, System

Determining Injection Volume

Posted on December 26, 2010 by b1r2i3a4n5


The ECU performs the following three functions to determine the injection volume:

1. Calculation of basic injection volume

2. Calculation of maximum injection volume

3. Comparison of basic injection (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, injection, System

Diesel Engine Control System – Types of Sensor

Posted on December 25, 2010 by b1r2i3a4n5

Engine Speed Sensor
The engine speed sensor is fitted in the injection pump. It consist of a rotor that is pressed over a drive shaft, and a sensor. Electric signals are generated in the sensor (coil) (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, System

Precautions for Removing and Reinstalling Parts

Posted on December 24, 2010 by b1r2i3a4n5

The common-rail system consists of precision parts and uses highly pressurized fuel. Therefore, extreme care must be taken to ensure that foreign matter does not enter the system.

1. Thoroughly clean (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, Precautions, System

Diesel Engine Control System Injector Overview

Posted on December 23, 2010 by b1r2i3a4n5

The signals from the ECU are amplified by the EDU to operate the injector. High voltage is used particularly when the valve is open in order to open the nozzles. The injection volume and timing are controlled (more…)

Posted in Diesel Engine Control System
Tagged with control, Diesel, Engine, Injector, System

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