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2. OPERATING PROCESS
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System diagram
Operation
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EEM monitors the electric loads and battery conditions and controls the voltage to improve the
fuel economy and battery charging efficiency.
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EBS on "-" terminal of battery sends the battery information (voltage, current, temperature and
SOC) to engine ECU with LIN communication.
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Engine ECU outputs the information from EBS and regulating control signal (PWM) according
to the engine load conditions to "L" terminal on alternator.
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Engine ECU controls the magnetic resistance between stator coil and rotor coil by controlling
the current in rotor coil according to PWM duty value.
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The alternating voltage induced to stator coil is converted to direct voltage by rectifier. And,
EBS outputs the charging voltage to "B" terminal on alternator.
14-17
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