ICE vs. Electric Motor Sizing

Calculations

# === Input: ICE Engine Specs ===
icePowerPS = 15 hp
icePowerkW = icePowerPS to kW

# === Application Profile ===
# ICE advertised ratings are absolute peak.
# Variable/intermittent loads (vehicles, tractors, tools): duty factor ~ 0.60
# Continuous heavy loads (pumps, industrial saws, generators): duty factor = 1.00
dutyFactor = 0.60

# Typical electric motor peak-to-continuous overload capability (150% to 200%)
peakOverloadRatio = 1.8

# === Recommended Electric Motor Specs ===
# 1. Required continuous (S1) power for target duty cycle
recommendedContinuouskW = icePowerkW * dutyFactor
recommendedContinuousPS = recommendedContinuouskW to hp

# 2. Minimum continuous (S1) rating if relying on motor peak bursts to match ICE peak
minS1kWWithPeak = icePowerkW / peakOverloadRatio
minS1PSWithPeak = minS1kWWithPeak to hp

# === Summary ===
icePowerkW
recommendedContinuouskW
minS1kWWithPeak