The ETCS-i (Electronic Throttle Control System-intelligent) is a system that uses a computer to electrically control the throttle valve opening. Conventional throttle valve opening has been controlled Read more ETCS-i (Electronic Throttle Control System-intelligent)
System
Function of ISC Operation of Rotary Solenoid Type
1. Staring control
When the engine ECU receives a starter signal (STA), it determines that the engine is starting and opens the ISCV to improve startability. The ISCV opening is controlled according to Read more Function of ISC Operation of Rotary Solenoid Type
The ISC (Idle Speed Control) system
The ISC (Idle Speed Control) system is provided with a circuit that bypasses the throttle valve, and the air volume drawn in from the bypass circuit is controlled by the ISCV (Idle Speed Control Valve). Read more The ISC (Idle Speed Control) system
Corrective Ignition Advance Control
1. Warm-up correction
An advanced angle is used for the ignition timing when the coolant temperature is low to improve drivability. Some engine models conduct correction advancing in response to the intake Read more Corrective Ignition Advance Control
Outline of Ignition Timing Control (Control of ESA)
The ignition timing control consists of two basic controls.
1. Starting ignition control
The starting ignition control is performed by conducting ignition at the predetermined crankshaft angle regardless Read more Outline of Ignition Timing Control (Control of ESA)
ESA (Electronic Spark Advance) system
The ESA (Electronic Spark Advance) system is a system that uses the engine ECU to determine the ignition timing based on the signals from the various sensors. The engine ECU calculates the ignition timing Read more ESA (Electronic Spark Advance) system
Various Corrections in Gasoline Engine Injection Control System 2 of 2
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 Read more Various Corrections in Gasoline Engine Injection Control System 2 of 2
Various Corrections in Gasoline Engine Injection Control System 1 of 2
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 intake air are large at starting. Read more Various Corrections in Gasoline Engine Injection Control System 1 of 2
Gasoline Engine Fuel System/ Fuel Pump and Pressure regulator
The fuel is taken from the fuel tank by the fuel pump and sprayed under pressure by an injector. The fuel pressure in the fuel line must be regulated to maintain stable fuel injection by the pressure regulator Read more Gasoline Engine Fuel System/ Fuel Pump and Pressure regulator
Gasoline Engine EFI (Electronic Fuel Injection) Fuel System
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 to inject Read more Gasoline Engine EFI (Electronic Fuel Injection) Fuel System