Battery Electric Bus Interactive Activity One

Which of the following is the definition of a “battery electric bus”? 

• A type of bus that relies on burning and converting fuel to create translational mechanical energy via pistons 

• A type of bus with a design that stems from a technological response for a need to reduce greenhouse gas emissions, utilize renewable energy, increase fuel economy and offer quiet operation 

• A type of bus that will utilize both a traditional internal combustion engine along with an electric propulsion system 

Which of the following are components that are different between traditional and battery electric buses? 

• All of these are different between bus types 

• Charging methods and equipment 

• HV batteries and HV battery management systems 

• Powertrain

BEBs will use the energy stored in the... , which is connected to the drive axle. 

True or False...

CAN systems are a type of serial communications protocol that allows electronic units to communicate and share essential vehicle control data. 

• True

• False

True or False... CAN systems allow for data to be packaged together, increasing the number of transmissions needed.  

• True

• False

What is the image to the left called? What is its function?

Out of the following list, which tasks are specific to Battery Electric Buses?

1. Lubrication of the traction motor

2. Measuring Battery Pack Cell Voltage

3. Drain and refuel the transmission fluid

4. Inspection of the DC-DC converter

5. Replacement of the engine fuel filter

6. Inspection of high voltage cables

• 1, 3, 4, 5, & 6

• 1, 2, 3, & 5

• 1, 3, 5, & 6

• 1, 2, 4, & 6

Answer explanation

The correct poll answer is 1, 2, 4, & 6

What is shown in the image? What is it's function?

Answer explanation

DC to DC Converter

Function: a liquid cooled component that is used to change high voltage DC to low voltage DC. DC to DC converters charge the low voltage batteries and supply low voltage power when the high voltage system is enabled.

High voltage risk occurs with any voltage over______ volts. 

• 15

• 50

• 45

• 13.6

An____motor works by applying________to stator windings, which produce a rotating magnetic field in the rotor.