System Description: Description
ECM prioritizes requests from all systems performing engine torque request and adjusts torque (according to driveability and specified priorities). In addition, ECM determines the method of satisfying each request and adjusting torque.
ECM controls torque according to the following items.
- Accelerator pedal position sensor (Accelerator pedal effort)
- Electronic stability program control unit
- ICC sensor (ICC control)
- TCM (Transaxle control)
- Engine speed limit
- Vehicle speed limit
- Max torque limit
ECM adjusts torque according to the following controls.
- Injection time adjustment: for details, refer to System Description .
- Advance/retard angle of ignition timing adjustment (Torque varies quickly.): For details, refer to System Description .
- Synchronization of the injection and ignition order: For details, refer to System Description .
NOTE:
A torque reserve is achieved by extending the injection period, while simultaneously adjusting the ignition angle to retarded. This enriches the fuel/air mixture while also preventing any premature increase in torque through retarding the ignition timing of the ignition angle. Finally, any required increase in engine torque is achieved if necessary by timing advance of the ignition angle. This enables a fast and comfortable increase in torque.