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