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The maximum electric motor torque and engine torque occur at different rpm. As a note of caution, the sum of component power 23 + 110 kW = 133 kW is not the maximum hybrid power. As an example of hybridness consider a light delivery van with the propulsion: Diesel engine: 110 kW at 3000 rpm Electric motor: 23 kW maximum torque 243 N-m at 500 rpmĪs will be seen, H = 17% is a mild hybrid. The name, hybridization, is occasionally used for H. The definition uses the sum of all traction motors. Hybrids with motor-in-thewheel and all-wheel-drive (AWD) have more than one motor. Some hybrids have more than one motor/generator (M/G). Sum of power of all traction motors Sum of traction motor+Engine power Hybridness: parallel hybrid, series, mixed and range extender (plug-in) hybridsīattery power and electric motor power DEFINITION OF HYBRIDNESS The definition of hybridness, H, is H

The following topics are covered in this lecture:  Module 8: Design of Hybrid and Electric Vehicles Lecture 27: Design Principles of HEVs I Design Principles of HEVs I In this lecture the different types of the hybrid electric vehicles are presented.

NPTEL – Electrical Engineering – Introduction to Hybrid and Electric Vehicles