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Outline.
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Regulate Generated Electricity
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Self-control for maximum output current
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A characteristic of the alternator is that the output current flows almost constant when it exceeds a certain speed (self-control operation).
Therefore, when applying a large load exceeding the maximum output current, the voltage generated drops. Another characteristic of the alternator is that output current is smaller when heated than when cold because the resistance value in each component changes depending on the temperature even when the speed does not change.
SERVICE HINT:
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If the v-ribbed belt slips, the alternator speed will be lower than usual and the electricity generated decreases, causing the battery to progressively discharge (go flat). |
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If the electricity consumption is greater than that being generated, the electrical charge in the battery is consumed, causing the battery to progressively discharge (go flat). When the alternator speed is low, such as when the engine idles, the generated electricity is small.
Therefore, when many electrical devices (load) are operating such as the blower fan and headlights, the electrical charge in the battery is also consumed. If this condition continues for a long time, the battery will progressively discharge (go flat). |
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(15)
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