Lesson 2 Electric Vehicle Charging Systems

CHAdeMO V1.0 Standard has charging power up to ___ at ____. Up to _____.

62.5kW / 500VDC/ 125 A

EV networks generate revenue with which of the following

A. Call to pay. B. Membership fees C. station usage fees. D. all of the above**

Which of the following is not a variable that determines the charging time of an EV?

A. Connector configuration.** B. Max power capacity of the EVSE's converter. C. Size of the electrical feeder/service supplying the EVSE. D. All of the above.

The SAE standard for wireless charging has specifications that include which of the following?

A. Magnetic triangulation for vehicle alignment over the power source coil. B. Means to allow for payment without physical interaction. C. Up to 11 kW charging capacity. D. All of the above.**

True or False: The first EV chargers were external and supplied DC current directly to the vehicle's batteries.

True

True or False: Wireless charging is more expensive than charging with EVSE or DCQC.

True

The state of charge of the EV battery is _____

a determining factor in calculating the time necessary to fully charge an EV

What is the purpose of the J1772 connector pins is to provide?

A. A charging interface that is safe for consumers to use. B. a means to signal the EVSE to stop charging based on the pin contact state. C. Signals to the EVSE that the connector is properly seated on the vehicle. D. All of the above**

Which of the following is NOT true of EV charging networks?

A. Charging networks are both paid memberships and free memberships with a pay as you go charging. B. there are over a dozen networks across the US and Canada. C. they allow businesses a way to draw consumers to charging equipment and generate revenue via transaction processing. D. None of the above**

The Society of Auto Engineers creates standards for which of the following?

A. Maximum current and voltage specifications for the EVSE. B. Plug configuration C. Safety features D. All of the above**

What is the Japanese DC quick charging standard?

CHAdeMO

True or False: ESVE provides power to the electric vehicle charging port.

False

What are the advantages of wireless charging?

It has no exposed electrical contact points and wireless charging has better aesthetic quality

What is the SAE standard for wireless charging?

J2954 recommended practice

An AC charger with a single-phase 208-volt connection and a continuous current output of up to 80 amperes is classified as a _____charger.

Level 2

What is connected to the charge controller of a wireless EV charger via hardwiring?

Power source coil

Charging is defined as...

Supplying power(kW) to an EV battery.

EV networks utilize memberships that are _____

a fee based pay as you go.

DC charging equipment provides DC directly to ___ in an EV.

A battery management systems

Wireless EV charging utilizes the principles of ____

Induction

What is true about the J1772 standard control pilot terminal pin's function?

A. it charges the state of the EVSE according to the voltage present. B. it defines the state of the EVSE. C. it uses a +12V to -12V AC square wave signal. D. All of the above. **

True or False: The EV's power acceptance rate should not be considered when making EVSE purchasing decisions.

False

Electric Vehicle Supply Equipment (EVSE) provides which of the following safety features?

GFCI protection

What is one of the early electric vehicle chargers?

General Electric Arc Rectifier.

An AC charger with a single-phase 120-volt connection and 14-16 amperes of continuous current output if classified as a _____ charger.

Level 1

The actual means charging was accomplished by a ___ that was on board the vehicle.

Rectifier

What is the acronym for the level of charge present in an EV battery?

SOC