Transmission
From OpenMBD
< SIMarchitect Library Overview | Component library | Powertrain | Mechanical Powertrain Components
Contents
General information about Transmission
Transmission is modeled as a set of gears in contact and have specific gear ratio.
Module
Bus Selector for module input
Module output
| Output | ||||
|---|---|---|---|---|
| Node | Variable | Label | Description | Unit |
| Sensor | ωout | Transm_nOutAct_radps | Transmission output speed | rad/s |
| ωin | Transm_nInAct_radps | Transmission input speed | rad/s | |
| Transm_tqInAct_Nm | Transmission input torque | Nm | ||
| Transm_flgConnected_B | Gear status (engaged or not) | Boolean | ||
| mech out [Nm] | Mout | phys_torque_Nm | torque | Nm |
| Jout | phys_inertia_kgm2 | inertia | kgm2 | |
| mech fb out [rad/s] | ωin | phys_speed_radps | rotational speed | rad/s |
Module Parameter
| Variable | Parameter | Description | Unit |
|---|---|---|---|
| dat.timetrqinterrupt.value | Time the transmission is torque free | s | |
| dat.maxtorque.value | Maximum torque the transmission can transfer | Nm | |
| dat.tanh.value | Coefficient for smoothing the function in clutch model | - | |
| dat.speedtolerance.value | Speed tolerance for slipping clutch | rad/s | |
| dat.nofgear.value | Number of gears in the transmission (forward) | - | |
| ηTransmission | dat.gear.number.vec | Transmission mechanical efficiency = f(gear number,torque,speed) | - |
| dat.gear.mechefficiency.torque.vec | Nm | ||
| dat.gear.mechefficiency.speed.vec | rad/s | ||
| dat.gear.mechefficiency.efficiency.map | - | ||
| dat.gear.ratio,vec | Gear ratio | - | |
| dat.gear.inertia.vec | Gear inertia | kgm2 |
