Hybrid Test

True

A diesel-electric railroad locomotive is a hybrid vehicle.

True

A high-voltage drive train is indicated by orange cables under the vehicle's hood.

False

A hybrid drive system is made up of three major assemblies.

False

A motor-generator functions as a traction motor and generates dc current.

Six

A typical series-parallel hybrid drive system has _________basic modes of operation.

Parallel

A(n) ______________ hybrid uses both the internal engine and a motor-generator to apply torque to the drive train.

Triple

A(n) ________________ motor -generator arrangement is often used in large, four-wheel drive vehicles to drive all of the wheels.

Lithium-ion

An HV battery contains several high-efficiency ___________ battery modules.

False

An inverter circuit in the HV PCM steps dc voltage up or down.

True

At low speeds, the internal combustion engine in a parallel hybrid shuts down.

Motor-assist mode

Full Hybrid mode in which the internal combustion engine and motor-generator work together to provide propulsion.

Idle stop mode

Full hybrid mode in which the internal combustion automatically shuts down when the vehicle comes to a full stop and restarts when the vehicle reaches a predetermined speed.

Battery pack recharging mode

Full hybrid mode in which the internal combustion engine is providing propulsion and the motor-generator is supplying electricity to the battery pack.

All-electric drive mode

Full hybrid mode in which the internal combustion engine is shut down and propulsion is provided by the motor-generator.

Regenerative braking mode

Full hybrid mode in which the motor-generator is functioning as a generator, and the engine's valves may be opened to allow it to free-wheel.

A small gas or diesel engine and a motor-generator powered by a high voltage battery.

What are the two power sources used to propel a hybrid electric vehicle?

True

When backing up, most hybrids operate in all-electric mode.

Engine compression may be increased to aid in braking.

Which of the following in NOT a trait of regenerative braking?

It provides high-voltage dc to the power control module.

Which of the following may NOT be a function of the motor-generator?

To warn technicians that they carry dangerous high voltage.

Why do HV power cables have bright orange insulation?

True

With regenerative braking, the hydraulic brakes are only applied during faster stops.

Kinetic

If braking is done carefully, nearly all of the vehicle's _______________ energy can be reclaimed using regenerative braking.

Frederick Porsche

In 1898, the first vehicle to use a propulsion system with a generator and electric drive motors was developed by _______________.

Series

In a ___________hybrid, there is no mechanical connection between the internal combustion engine and the drive train.

30

In a full hybrid, the motor generator propels the vehicle until the HV battery charge drops to about _______%.

False

In a mild hybrid, the internal combustion is used to recharge the battery pack when the vehicle is stopped.

Series

In a(n) ______________hybrid, the traction motor is the only means of propelling the vehicle.

Battery Pack

In all-electric drive mode, the energy needed to power the motor-generator is provided by the ___________.

Armature, stator and housing

List the basic parts of a motor-generator.

Steam-powered hybrids

Manufacturers are experimenting with each of the following hybrid types EXCEPT ________________.

False

Many hybrids use a traditional 12-volt lead acid battery and a step-up transformer to supply the high voltages needed to operate the traction motors.

A only

Technician A says a mild hybrid shuts down its internal combustion engine when the vehicle comes to a stop. Technician B says all mild hybrids use a small motor-generator to assist the gas engine during acceleration. Who is right?

Power control module

The ________________changes ac to dc or dc to ac and steps voltage up or down.

Stator

The basic parts of a motor-generator include the armature, the ______________ and the housing.

Combination meter

The condition and performance of the hybrid vehicle's internal combustion engine and electric drive system are displayed on the ______________________.

True

The inverter circuit in the power control module converts dc from the battery pack into 3-phase ac for use in the motor-generator.