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← ScienceWhich outcome arises when regenerative braking in electric engine fills battery under near-full charge level?
A)Reduced braking efficiency and heat increase✓
B)Increased braking torque and system strain
C)Motor overheating from back EMF
D)Inverter failure from voltage spikes
💡 Explanation
When a near-full battery attempts to absorb regenerative braking energy, overvoltage protection is activated because battery management cannot dump surplus electrical energy efficiently, thus forcing mechanical brakes to pick up slack, reducing regenerative braking percentage, resulting in increased heat contribution of friction braking. Therefore reduced efficiency occurs, rather than strain, motor heating, or inverter failure which require dedicated malfunctions.
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