ZombieVerter Tuning Guides

Aux PWM gain/scaling.

Aux PWM offset.

Speed control proportional gain.

Idle speed target. -100 = disabled.

Speed measurement filter.

Auxiliary PWM output function.

Cruise control mode.

Idle throttle limit. Prevents runaway.

Idle control mode.

CAN bus speed.

Trip behavior on overcurrent/fault.

Output relay mode.

Cooling fan temperature setpoint.

CAN node ID for this inverter.

Boot precharge — start precharge on power-up.

Minimum DC voltage. Power is reduced below this.

Maximum DC voltage during regen. Set to your pack's max charge voltage.

Maximum DC current draw (acceleration). Set to battery's max discharge rating.

Maximum DC regen current. Must be NEGATIVE for regen to work!

Maximum heatsink temperature before power reduction.

Maximum motor temperature before power reduction.

BMS communication timeout.

Minimum cell voltage limit.

Maximum cell voltage limit.

Minimum battery temp limit.

Maximum battery temp limit.

Charge current setpoint in Amps.

Charger PID proportional gain.

Charger measurement filter.

Charger operating mode.

Minimum charger PWM duty cycle.

Maximum charger PWM duty cycle.

Target charging voltage.

Target charging power.

Charge termination current.

Total battery pack capacity.

Charger control mode.

AC mains voltage.

Charger efficiency.

Enable FOCCCI mode.

CCS current limit.

Fast charge SOC threshold.

CCS fast charge current command.

CCS SOC charge limit.

CAN3 bus speed (for external MCP2515 CAN bus).

Precharge completion voltage. Main contactor closes when bus reaches this.

Cruise indicator light.

Error indicator light config.

Cruise speed increment.

Cruise ramp rate.

Regen level.

DC-DC converter type (HV → 12V).

DC-DC output voltage setpoint.

GS450H gear selection.

GS450H oil pump duty cycle.

Digital output 1 function.

Digital output 2 function.

Digital output 3 function.

Shift lock output 1.

Shift lock output 2.

PWM output 1 function.

PWM output 2 function.

PWM output 3 function.

Proximity pilot ADC threshold.

Brake vacuum threshold.

Brake vacuum hysteresis.

Digital pot 1 step.

Digital pot 2 step.

12V input function.

HV request input function.

Analog input A1 function.

Analog input A2 function.

Cooling fan temp setpoint.

Tachometer pulses per rev.

Pump PWM mode.

Select the type of inverter/motor controller you're using. This is THE most important parameter — it configures CAN bus protocols, motor control algor...

Select the vehicle platform you're converting. This configures CAN bus messages for instrument cluster, reverse lights, gear display, and speedo.

Select your gear selector/shifter type. Tells the VCU how to interpret gear position inputs (Park, Reverse, Neutral, Drive).

Transmission type. Manual = you shift gears yourself. Auto = single-speed or automatic.

Which CAN bus is the inverter connected to? ⚠️ REQUIRED — set this to the CAN bus your inverter is on. If you only have one CAN bus, leave as CAN1.

Which CAN bus is the vehicle systems connected to? ⚠️ REQUIRED — set this to the CAN bus your car's original systems are on (cluster, OBD2, etc.). Def...

Which CAN bus is the current shunt connected to? If you don't have a CAN-based shunt (ISA shunt, etc.), leave this at CAN1 — it won't matter because S...

Which CAN bus is the charge limiter connected to? If you don't have a charge limiter, leave this at default. The VCU won't try to use it unless you co...

Which CAN bus is the charger connected to? Only matters if you have a CAN-connected charger. If chargemodes is 'Off', this setting is ignored — leave ...

Which motors are active? For single motor builds use MG1 only.

Select your charging interface/protocol. Different charging standards use different protocols.

Select your onboard charger type.

Select your Battery Management System type.

Select your current shunt type for SOC calculation.

Which CAN bus is the BMS connected to? Only matters if you have a CAN-based BMS. If BMS_Mode is 'Off', this setting is ignored — leave at CAN2.

Which CAN bus is the OBD2 port connected to? Only matters if you have an OVMS or OBD2 CAN device connected. Otherwise leave at CAN1.

Which CAN bus is the CAN mapping connected to? Only needed if you're doing custom CAN message forwarding. Leave at CAN1 otherwise.

Which CAN bus is the DC-DC converter connected to? Only matters if you have a CAN-controlled DCDC. If DCdc_Type is 'No DCDC', ignore this — leave at C...

Enable CAN-based digital IO expansion.

Enable RS232 serial for terminal/debug.

Inhibit drive mode when charge cable is plugged in.

Which CAN bus is the heater connected to? Only matters if you have a CAN-controlled heater. If Heater is 'None', ignore this — leave at CAN2.

Cabin heater type.

Heater control mode.

Heater power setpoint.

Heater power as percentage.

Heater pot direction.

Heater pot min value (heater OFF).

Heater pot max value (full heat).

ISA shunt init on startup.

PWM switching frequency. Higher = cleaner motor but more IGBT heating.

IGBT dead time between high/low-side switching. CRITICAL safety param.

Overcurrent limit. If RMS current × √2 exceeds this, inverter trips.

Current sensor 1 gain. MUST be calibrated for accurate current measurement.

Current sensor 2 gain. Same as il1gain but for second phase.

DC bus voltage measurement gain.

Heatsink temperature sensor type.

PWM polarity. Depends on gate driver design.

DC bus voltage measurement offset.

Pin swap configuration. Swaps resolver sin/cos or other signals.

Maximum DC voltage (overvoltage derating).

Maximum AC phase current to motor.

Maximum motor frequency. RPM = fmax × 60 / polepairs.

Voltage at 0 RPM — controls starting torque. Higher = stronger launch.

Field weakening start frequency. Above this, motor enters constant-power region.

Speed sensor pulses per revolution.

Motor pole pairs. CRITICAL — set this correctly for your motor.

Maximum slip frequency (induction motors). Sets full-throttle torque.

Motor temperature sensor type. Must match your motor's actual sensor.

Minimum slip frequency (induction motors). Sets creep torque.

Encoder/position sensor type. This is your motor's 'eyes' — it tells the inverter where the rotor is.

RPM below which direction change is allowed.

Nominal DC link voltage. 0 = auto-calculate from actual bus voltage.

Synchronous offset for resolver alignment.

Resolver pole pairs. Usually 1 for most resolvers.

Constant power frequency. Above fweak, below fconst — power stays constant.

Maximum slip in constant power region.

Sin/Cos encoder midpoint offset.

Field weakening end frequency. Flux no longer reduced above this.

Synchronous advance compensation.

Lq − Ld inductance difference for IPM motor saliency torque.

Motor permanent magnet flux linkage. Physical motor constant for FOC control.

Field weakening demagnetizing current (negative). MUST be negative!

Timer3 prescaler.

Timer3 period.

Timer3 OC1.

Timer3 OC2.

Timer3 OC3.

Charge pilot PWM duty.

DCC max temp threshold.

DCC min temp threshold.

DCC max SOC threshold.

DCC min SOC threshold.

Set day of week.

Set hour (0-23).

Set minute.

Set second.

Charging start hour.

Charging start minute.

Charging duration.

Preconditioning start hour.

Preconditioning start minute.

Preconditioning duration.

Throttle pedal MINIMUM raw ADC value (pedal fully released).

Throttle pedal MAXIMUM raw ADC value (pedal floored).

Second throttle channel MINIMUM (for dual-channel pedals). Leave at 4095 if unused.

Second throttle channel MAXIMUM.

Throttle input mode. Single = one pot. Dual = redundant channels for safety.

Direction control mode. How the VCU determines forward/reverse.

Restrict direction changes while moving (safety).

RPM threshold for direction change restriction.

Reverse motor rotation. Set to 1 if motor spins wrong way.

Throttle ramp rate. How fast motor responds to pedal. Lower = smoother.

RPM where throttle ramp reaches full effect.

Motor RPM limit (rev limiter). SAFETY CRITICAL — set according to your motor's specs!

Maximum forward throttle. 100% = full power. Reduce for winter/novices.

Maximum regen on throttle lift-off (one-pedal feel). -100% = strong regen. 0% = coasting.

Maximum reverse throttle. Lower for safety.

Throttle deadzone at top of travel. Prevents unintended regen from tiny movements.

RPM where regen reaches maximum effect. Lower = regen kicks in harder at low speed.

RPM below which regen is disabled. Prevents jerky regen at very low speeds.

Enable regen in reverse.

Maximum regen from throttle lift-off (one-pedal regen strength).

Maximum regen when pressing brake pedal. Separate from throttle-lift regen.

How fast regen engages when lifting off throttle. Lower = smoother.

Regen level that triggers brake light output.

RPM signal filter for throttle. Higher = smoother but slower response.

Minimum amplitude/power at zero throttle. Prevents deadband.

Throttle travel zone dedicated to regen (from 0% pedal).

Regen amount when brake pedal is pressed.

Motor frequency at which regen ramping starts.

Regen amount when throttle is fully released (off-throttle regen).

Regen level that triggers brake light output.

Slip percentage at which motor starts producing torque.

Current per percent throttle — this is your POWER control. Higher = more torque.

Regen applied during cruise control deceleration.