440
Index
transistors, 312–313
voltage, polarity reverse, 312

convert to generator, 311

DC/AC current, 311

device description, 310

electrically powered vehicle, 311

manual/automatic means,
310–311
operating mechanism, DC controller

on/off approach, 312

power, high and low, 312

pulse width modulation, 313

speed and acceleration, 312

switching devices, 312

potentiometer, 312

signal, accelerator, 311

speed and torque, 310

working, 311

zero emission vehicles, 310

Motor-heavy series-parallel hybrid
system
accelerating and normal
driving, 370

battery charging, 371

decelerating/braking, 370–371

launching, 370

operating modes, 370–371

Motor octane number (MON), 135

MPFI engine, see Multipoint fuel
injection system (MPFI) engine

MTBE, see Methyl tertiary-butyl ether
(MTBE)

Multipoint fuel injection system (MPFI)
engine, 140–141

N
National Alcohol Program, 130

Natural gas (NG), 12–13, 86

in CI engines, 238–240

end-use efficiency of, 2

flammability, 102

properties of

calorific value, 231

flammability, 230

octane number, 229–230

Wobbe index, 230–231

in SI engines, 237

storage and transport, 228

used in combined cycle power
plants, 228

Next generation fuels, 16–17

Nickel-based batteries

nickel–cadmium

disadvantages, 309

positive and negative
electrodes, 309

power, cycle life and low-

discharge rate, 309

sealed type, 309

vented type, 309

nickel–iron

lifetime, 309

potassium hydroxide,
electrolyte, 308

power density, 309

self discharge, 308–309

nickel-metal hydride
during charging and
discharge, 309

and nickel–cadmium
batteries., 309

reaction, 309

nickel–zinc

dendrite growth problem, 309

energy and power density, 309

lifetime, 309

Nitrogen oxides (NO x ) emissions

formation of, 112

lower peak cylinder pressures, 113

ORG injection timing, 112

pollutant formation process, 112

Nonedible oils, 22

NO x emissions and respiratory infection
and viral infections, 7

O
Onboard-hydrogen storage

fuel cell typologies, 285

characteristics of, 286

nickel metal hydride systems, 287

pressurized tank storage, 287

storage criteria, 285, 287–288

On/off approach, 312

On-road alternative fuel vehicles, 18

Opel’s Zafira compact van, 351

Operating principle in PEFCs
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