How to Tune udcgain on ZombieVerter VCU

DC bus voltage measurement gain.

Quick Reference

Param ID

Unit

dig/V

Range

-100 — 100

Default

6.175

🔍 See a sample config →

📖 What Does It Do?

DC bus voltage measurement gain.

🎯 Recommended Values

Default value: 6.175

Valid range: -100 to 100

Tuning Strategy

Start with the default value and adjust in small increments. Monitor vehicle behavior after each change before making further adjustments.

💡 Tuning Tips

Calibrated for your specific voltage divider. Default works for most builds.

Tune udcgain and All 80+ Parameters

Answer a few questions about your specific build and get a complete, validated config file ready to load.

Generate Your Complete Config →

Free account • No credit card • Takes 5 minutes

🔗 Related Parameters

Other parameters in the Inverter Hardware category that work together with udcgain:

pwmfrq

enum

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

deadtime

dig

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

ocurlim

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

il1gain

dig/A

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

il2gain

dig/A

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

snshs

enum

Heatsink temperature sensor type.

pwmpol

enum

PWM polarity. Depends on gate driver design.

udcofs

dig

DC bus voltage measurement offset.

pinswap

enum

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

← Back to All Guides Next: snshs →