Darrell

Profile picture for user Darrell

Darrell

Director
Mentor Graphics
Wilsonville

Biography

One of the original creators of SystemVision

Showcase

PIDF feedback control theory for FRC motor speed control

See blog for detailed information

https://www.systemvision.com/blog...

Darrell
VKKencoderfb_errorKddtCountsPerRev2048KKmult_rpmsetpointpulse_value=2000TqLow-passFilter (LPF)PIDF_cmdv_talonload_speed_radpsF_cmdcntsPerRevcntsp100msmotor_cmdload_speed_rpmset_speed_RPMmotor_cmd_clipfullscaleToPercentBus9.775E-4load_speed_NUerrorrps_to_rpm9.54929comp31.61.0P_cmdcntsp100mssumAllsumPIDr_battery_and_wires50mmotor_power12.0ballpulse_value=3ramptime_initial_to_pulse=7mramptime_pulse_to_initial=7mstart_delay=5pulse_width=20mperiod=1cmd_limit1.0-1.0v_batteryPID_cmdP_gainK=0.25I_cmdD_gainK=0.003F_gainK=0.047load_speed_NU_smoothI_gainK=0cntspm_to_cntsp100ms1.6666mD_cmdShooterMotormotor=Falcon500mult2set_speed_NUball_disturbancew_loadShooterInertiaj=0.001

This is a model of an Ember coffee mug -- a battery-powered, state-of-the-art beverage container that controls the temperature of...

Darrell
rth_insulationCtc_amb2Thermal Masscoffeeinitial_temperature=75Phase Change Materialrth_pcm1cth_init_condrth_liqPhase Change Materialu5rth_pcm2Temptemp_sensordiff1Kgain1100.0qgen1heat_element18Battery VOC=f(SOC)+-Li_ion_batteryPWMheat_controllerPCM1coffee_temperatureheating_elementPCM2errorsetpointcontrolfb_tempbattery_voltagev_heateru3