Exam 7: Charging Systemscharging System Testing and Service

In a HEV, ____ helps minimize energy loss by recovering the energy used to slow the vehicle.

What components make up the AC generator field circuit?

The ____ converter allows the conversion of electrical power between the high-voltage (HV) direct current system and the low-voltage (LV) direct current system.

A ____ noise can be caused by shorted diodes or stator, or by a worn rotor bearing.

Technician A says damage can occur to solid-state circuitry if the charging voltage is allowed to get too high. Technician B says damage can occur if the engine ran with the battery disconnected. Who is correct?

What type of voltage is the output at the "Bat" terminal of the AC generator?

The voltage regulator controls the output voltage of the AC generator, based on charging system demands, by controlling what?

Technician A says a full fielding test should be performed only if the charging system fails the output test. Technician B says during the full field test the field windings are constantly energized with full battery voltage. Who is correct?

Symptoms of ____ include slow-cranking, discharged battery, low instrument panel ammeter or voltmeter readings, and charge indicator lamp on.

In what type of stator, is one lead from each winding is connected to one common junction?

Technician A says the regulator is the cause if full fielding with the regulator bypassed produces lower than specified output. Technician B says a full field test will isolate the problem if it is in the AC generator or the regulator. Who is correct?

The input voltage to the AC generator is called ____ voltage.

What are the main components of the AC generator?

Explain the meaning of regenerative braking.

The current output test will determine the maximum output of the ____.

Less than rated output during full fielding indicates need for a new voltage regulator.

Technician A says before performing a voltage output test, a visual inspection and preliminary check of the charging system should be done. Technician B says a voltage output test will indicate if the charging system is working properly. Who is correct?

All charging systems use what principle to generate the electrical power?

How many pairs of diodes does full-wave rectification require in an AC generator?

A computer-controlled charging system is undercharging. A lab scope connected to the ground side of the alternator field indicates a 90 percent duty-cycle. Technician A says the alternator may need to be replaced. Technician B says the on-board computer may need to be replaced. Who is correct?