CI Engine Simple Torque Model

For the simple torque lookup table model, the CI engine uses a lookup table is a function of engine speed and injected fuel mass, $T_{brake}=f_{Tnf}(F,N)$, where:

• Tq = T_brake is engine brake torque after accounting for engine mechanical and pumping friction effects, in N·m.

• F is injected fuel mass, in mg per injection.

• N is engine speed, in rpm.