Ch. 89 Introduction to Hybrid Vehicles

A typical belt alternator starter​ (BAS) system will increase fuel economy by​ ________.

8% to​ 15%

About how fast does a motor-generator crank the internal combustion engine?

About 1000 RPM

Which of the following is not true of hybrid electric vehicles​ (HEVs)?

At speeds above 60​ mph, the brake system switches from regenerative braking to actually applying the brake force to the mechanical brakes.

Which type of hybrid electric design costs the least?

BAS design

​________ enables the vehicle to use a​ smaller, more​ fuel-efficient engine without giving up vehicle performance.

Power assist mode

Early electric vehicles​ (EVs) were also called​ ________.

battery electric vehicles

Which of the following is not a characteristic of electric​ motors?

constant torque above base speed

When compared to conventional​ vehicles, hybrid vehicles will​ ________.

cost more and weigh more

Which of the following is an advantage of​ parallel-hybrid design?

smaller gasoline engine

The belt alternator starter​ (BAS) system uses the​ high-voltage motor-generator​ ________.

when starting the internal combustion engine​ (ICE) from idle stop

In a​ series-hybrid design, sole propulsion is by​ a(n) ________.

​battery-powered electric motor

Technician A says that most hybrids use the series hybrid design. Technician B says that some hybrids have 42-volt batteries. Which technician is correct?

Neither technicians

​________ ensures that the vehicle is not using​ fuel, nor creating CO2 emissions, when the engine is not required to propel the vehicle.

Idle stop mode

All of the following are characteristic of a hybrid electric vehicle (HEV), except ____.

Lower fuel economy

Which type of hybrid uses 36 to 42 volts?

Mild Hybrid

Which type of hybrid is capable of propelling the vehicle using just the electric motor?

Strong (full) hybrid

Which type of hybrid electric vehicle has idle stop operation?

Strong, Mild, and Medium hybrids

Technician A says that most hybrids require that they be plugged into an electrical outlet at night to provide the electrical power to help propel the vehicle. Technician B says that the internal combustion engine in an HEV will often stop running when the vehicle is stopped. Which technician is correct?

Technician B only

Electric motors are better than an internal combustion engine to propel a vehicle because ____.

They produce high torque at low speeds; they do not burn fuel and therefore do not release carbon dioxide into the environment; They are quiet

The GM EV1 was what type of vehicle?

Totally electric powered