While Discussing Controllers in BEVs: Technician a Says the Controller

question 23

Multiple Choice

While discussing controllers in BEVs: Technician A says the controller may reverse the current flow to the motor when reverse gear is selected. Technician B says modern controllers adjust motor speed through pulse width modulation. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

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Definitions:

Hydraulically

Pertaining to or involving the movement or operation of devices through the pressure of liquids in motion.

Electrically

Pertaining to the use or operation by electricity, involving electronic circuits or devices.

Milky Appearance

Describes a condition where a normally transparent or semi-transparent fluid, like oil or hydraulic fluid, has become cloudy, often due to contamination with water.

Aeration

The blending of a gas into a liquid such as the mixing of air into oil by the churning action of rotating gears.