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2. Alternator (automotive) - Wikipedia

   en.wikipedia.org/wiki/Alternator_(automotive)

   Alternator (silver) mounted on a V8 engine Alternator voltage regulator (brushes are worn out) An alternator is a type of electric generator used in modern automobiles to charge the battery and to power the electrical system when its engine is running. Until the 1960s, automobiles used DC dynamo generators with commutators.

3. Load dump - Wikipedia

   en.wikipedia.org/wiki/Load_dump

   If the battery becomes disconnected while it is being charged the load on the alternator suddenly decreases. However, the vehicle's voltage regulator cannot quickly cause the field current to decrease sufficiently, so the alternator continues to generate a large current. This large current causes the voltage on the vehicle bus to increase ...

4. Automotive battery - Wikipedia

   en.wikipedia.org/wiki/Automotive_battery

   While the engine is running most of the power is provided by the alternator, which includes a voltage regulator to keep the output between 13.5 and 14.5 V. Modern SLI batteries are lead-acid type, using six series-connected cells to provide a nominal 12-volt system (in most passenger vehicles and light trucks), or twelve cells for a 24-volt ...

5. DIN 72552 - Wikipedia

   en.wikipedia.org/wiki/DIN_72552

   VAG car relay. DIN 72552 is a DIN ... starter 1 output 30h, 30h I 45b starter 2 output 30h II 50 ... dynamo/alternator diode- DF dynamo field DF1 dynamo field 1 DF2

6. Alternator - Wikipedia

   en.wikipedia.org/wiki/Alternator

   The main alternator is the larger of the two sections, and the smaller one is the exciter. The exciter has stationary field coils and a rotating armature (power coils). The main alternator uses the opposite configuration with a rotating field and stationary armature. A bridge rectifier, called the rotating rectifier assembly, is mounted on the ...

7. Voltage regulator - Wikipedia

   en.wikipedia.org/wiki/Voltage_regulator

   Early automobile generators and alternators had a mechanical voltage regulator using one, two, or three relays and various resistors to stabilize the generator's output at slightly more than 6.7 or 13.4 V to maintain the battery as independently of the engine's rpm or the varying load on the vehicle's electrical system as possible.

8. Automobile accessory power - Wikipedia

   en.wikipedia.org/wiki/Automobile_accessory_power

   An engine has one or more devices for converting energy it produces into a usable form, electricity connection through the alternator, hydraulic connections from a pump or engine system, compressed air, and engine vacuum; or the engine may be directly tapped through a mechanical connection. Modern vehicles run most accessories on electrical power.

9. Load testing - Wikipedia

   en.wikipedia.org/wiki/Load_testing

   A load test can be used to evaluate the health of a car's battery. The tester consists of a large resistor that has a resistance similar to a car's starter motor and a meter to read the battery's output voltage both in the unloaded and loaded state. When the tester is used, the battery's open circuit voltage is checked first.