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Questions and Answers
What is the function of the Gear Drive Unit in an electrified vehicle?
What is the function of the Gear Drive Unit in an electrified vehicle?
- Sending power to the wheels with one gear and providing torque from the motor (correct)
- Regulating the flow of electricity to the high-voltage battery
- Controlling the vehicle's steering and braking systems
- Storing energy for the vehicle's powertrain system
What is the role of the High-Voltage (HV) Battery in an electrified vehicle?
What is the role of the High-Voltage (HV) Battery in an electrified vehicle?
- Storing excess power generated by the motor
- Controlling the vehicle's climate control and entertainment systems
- Functioning as the 'fuel tank' or heart of the powertrain system (correct)
- Regulating the vehicle's suspension and ride comfort
What is DC Fast Charging used for in electrified vehicles?
What is DC Fast Charging used for in electrified vehicles?
- Quick charging the high voltage battery via Direct Current at high voltage levels (correct)
- Charging the low-voltage battery using Alternating Current
- Slowly discharging excess energy from the high-voltage battery
- Regulating the flow of electricity between the motor and wheels
What are some common charging speeds associated with DC Fast Charging?
What are some common charging speeds associated with DC Fast Charging?
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Why is it not recommended for electrified vehicles to solely charge with DC Fast Chargers?
Why is it not recommended for electrified vehicles to solely charge with DC Fast Chargers?
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Study Notes
Gear Drive Unit Function
- Transmits power from the electric motor to the wheels
- Provides torque multiplication for acceleration and hill climbing
High-Voltage (HV) Battery Role
- Stores energy for the electric motor
- Enables driving range and performance
- Can be recharged through various charging methods
DC Fast Charging Purpose
- Quickly replenishes the HV battery with high power levels
- Suitable for long journeys and in situations where quick charging is necessary
Common DC Fast Charging Speeds
- Level 3 charging: Can charge up to 80% in 30 minutes
- CCS (Combined Charging System): Standard for DC Fast Charging in many parts of the world
- CHAdeMO (Charge de Move): Another standard for DC Fast Charging, primarily used in Japan
AC Charging Recommendation
- Regular AC charging: Recommended for daily use and overnight charging
- Reduced strain on battery: Helps prolong battery life by minimizing stress from frequent high-power charging
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