Difference between revisions of "SIMarchitect Library Overview/Component library/Powertrain/Energy Converters/Internal Combustion Engine"
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Revision as of 13:53, 5 April 2018
Contents
General information about Internal Combustion Engine
The internal combustion engine model is modeled using maps to represent the mechanical energy (friction) losses and the applicable time response for torque build up.
Module
Bus Selector for module input
[[File:]]
Module output
| Output | ||||
|---|---|---|---|---|
| Node | Variable | Name | Description | Unit |
| Sensor | Mice | Eng_tqCrkSft_Nm | Crankshaft torque | Nm |
| ωice | Eng_nAct_radps | Engine speed | rad/s | |
| Mice+Mfric+Mexh | Eng_tqInd_Nm | Indicated torque | Nm | |
| ϑice | Eng_tOilAct_K | Engine oil temperature | K | |
| mech out [Nm] | Mice | phys_torque_Nm | torque | Nm |
| Jice | phys_inertia_kgm2 | inertia | kgm2 | |
| mech fb in [rad/s] | ωice | phys_speed_radps | rotational speed | rad/s |
Module Parameter
| Variable | Parameter | Description | Unit | |
|---|---|---|---|---|
| Jice | dat.inertia.value | Inertia | kgm2 | |
| τice,1 | dat.boost.insttorque.timeconstant.T1.value | Time constant for engine torque build up | ||
| dat.boost.insttorque.vec | Instant torque available | Nm | ||
| τice,2 | dat.boost.timeconstatnt.T2.value | Time constant for boost pressure depending on torque build - up (Time constant = f(speed) | ||
| dat.boost.speed.vec | Engine speed vector for torque build up | rad/s | ||
| dat.torquetype.value | Engine torque request: 0 = indicated torque; 1 = crankshaft torque | boolean | ||
| dat.friction.friction.vec | Engine friction = f(speed) | Nm | ||
| dat.friction speed.vec | Engine speed vector for engine friction | rad/s | ||
| dat.exhaustbrake.brake.vec | Engine friction with fully engaged exhaust brake (Exhaust brake = f(speed)) | Nm | ||
| dat.exhaustbrake.speed.vec | Engine speed vector for engine friction with fully engaged exhaust brake | rad/s | ||
| dat.maxtorque.vec | Engine maximum torque (Max torque = f(speed)) | Nm | ||
| dat.maxtorque.speed.vec | Engine speed for engine maximum torque | |||
| dat.controller.p.value | Proportional constant for PI controller | - | ||
| dat.controller.i.value | Integral constant for PI controller | - | ||
| dat.startertorque.value | Starter motor torque | Nm |
