Tuesday, December 28th, 2010
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 common- rail EFI-diesel is determined through ...
Posted in Diesel Engine Control System | No Comments »
Monday, December 27th, 2010
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. Comparison of the target injection timing ...
Posted in Diesel Engine Control System | 1 Comment »
Sunday, December 26th, 2010
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 volume and maximum injection ...
Posted in Diesel Engine Control System | No Comments »
Wednesday, November 17th, 2010
4. Acceleration enrichment
The air-fuel ratio becomes lean, especially during the start of acceleration because a fuel supply lag tends to occur during acceleration against the rapid change of the amount ...
Posted in Gasoline Engine | No Comments »
Tuesday, November 16th, 2010
1. Start enrichment
The basic injection duration cannot be calculated from the amount of the intake air because the engine speed is low and the changes in the amount of the ...
Posted in Gasoline Engine | No Comments »
Monday, November 15th, 2010
The engine ECU changes the fuel injection volume by changing the injector injection duration. The actual fuel injection duration is determined by the following two items.
1. The basic injection duration ...
Posted in Gasoline Engine | No Comments »
Thursday, October 14th, 2010
The EFI system uses various sensors to detect the engine condition and vehicle running condition. And the engine ECU calculates at the optimum fuel injection volume, and causes the injectors ...
Posted in Gasoline Engine | No Comments »
Wednesday, July 28th, 2010
EFI (Electronic Fuel Injection)System
The EFI system uses various sensors to detect the operating conditions of the engine and the vehicle. In accordance with the signals from these sensors, the ECU ...
Posted in Gasoline Engine Control System | No Comments »
Friday, July 23rd, 2010
The TCV renders the LST inactive if the vehicle is operated with a cold engine (coolant temperature below 6C (14F)) or at high altitudes (where the atmospheric pressure is below ...
Posted in Diesel Engine | No Comments »
