Designing the Modern Dual-Engine Two-Speed Smart Hybrid Electric Drive Powertrain

Table 1

Efficiency estimation and comparison.

	Normal motor efficiency	Proposed system efficiency	Improvement
WLTC	82%	89.20%	7.20%
FTP-75	81.60%	90.40%	8.80%
HWFET	74.80%	81.20%	6.40%
JP10-15	85%	94.20%	9.20%