The ETCS-i controls the throttle valve opening angle to the optimum amount in accordance with the amount which the accelerator pedal is depressed.
1. Normal-mode control, Power-mode control and Snowmode Read more Electronic Throttle Control System-intelligent Other Controls
Gasoline Engine Control System
Throttle body construction and operation
the throttle body consists of a throttle valve, throttle position sensor that detects the throttle valve opening, throttle control motor that opens and closes the throttle valve, and a return spring that Read more Throttle body construction and operation
ETCS-i (Electronic Throttle Control System-intelligent)
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)
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
Maximum and Minimum Advance Angle Control
When there is trouble with the predetermined ignition timing from the initial ignition timing, basic ignition advance angle and corrective ignition advance angle, it will affect the engine performance Read more Maximum and Minimum Advance Angle Control
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)
Ignition Circuitry
The engine ECU determines the ignition timing based on the G signal, NE signal and the signals from other various sensors. When the ignition timing has been determined, the engine ECU sends the IGT signal Read more Ignition Circuitry
Gasoline Engine Communication Signals 2 of 2
1. Stop lamp switch
The signal from the stop lamp switch is used to detect brake operation. The STP signal voltage is the same as the voltage supplied to the stop lamp as shown in the illustration.