Automotive Service Modern Auto Tech Study Guide Chapters 30 & 32 Pages 499 - 547 Starting & Charging Systems 21 Points Alternator Starter Motor

Automotive Service The _________________ system uses battery power and an electric motor to crank the engine for starting. Charging Starting Ignition

Automotive Service 2. The ____________ is the source of energy for the starting system. The _____________ switch allows the driver to control starter motor operation. Battery, Ignition Battery, Brake Battery, Park/Neutral

Automotive Service 3. The __________________ is a high-current relay (electromagnetic switch) for connecting the battery to the starter motor. The initial “click” you hear just before cranking is the action of the solenoid. Cellophane Solenoid Fuel Pump

Automotive Service The starter __________ produces the high-torque needed for turning the ring gear on the engine flywheel. Relay Solenoid Motor

Automotive Service 5. The starter motor uses repelling _________________ fields to cause the rotary motion to crank the engine. Static Magnetic Dynamic

Automotive Service 6. The starter drive is made up of a small, ____________ gear and an ________________________ clutch that work together to mesh with the flywheel during cranking. The pinion gear is has just a few teeth (10) and the flywheel it meshes with has over a hundred teeth. This gear reduction provides a gain in torque. Pinion, Overrunning Bevel, One-Way Hypoid, Roller

Automotive Service 7. The ________________ _______________ switch (also known as the park/neutral switch) prevents cranking unless the shift selector is in park or neutral. A clutch safety switch is used on manual transmission cars. Starting Safety Brake Light Anti-Theft

Automotive Service ~~~ 8. The _______________ system charges the battery & supplies current to all of the car’s electrical systems. Charging Starting Ignition

Automotive Service 9. The _______________________ is the AC generator that uses engine rotary motion to produce electricity. Alternator Turbocharger Powertrain Control Module

Automotive Service The _________________ regulator is an electronic device that controls the charging rate of the alternator.

Automotive Service The AC generator is powered by a drive _______ (serpentine or v) connected to the engine crankshaft pulley. Smelt Welt Belt

Automotive Service The alternator produces ac electricity inside, but is rectified to ______________ _______________ (DC) before it flows out through wiring to recharge the battery and run the vehicle electrical systems. Direct Current Eddy Current House Current

Automotive Service Generally speaking, alternators move __________ fields past ____ of wire to generate power…This is called electromagnetic induction Plowed, Fences Magnetic, Coils Force, Mountains

Automotive Service Inside of an alternator, the brushes carry a regulated amount of battery voltage through copper slip rings into the spinning field coil of the __________. Moving this electromagnetic field past the ____________ windings generates AC electricity. The AC is changed to dc by diodes in the rectifier bridge. Stator is Stationary Rotor Rotates Stator, Rotor Rotor, Stator Armature, Rotor

Automotive Service Charging system output is sensitive to ____________ temperature. The ________ is sometimes used to supplement or replace the conventional voltage regulator for more precise control the charging circuit. Battery, PCM Coolant, EGR Ambient, Trunk Battery Temperature Sensor

Automotive Service A loose or slipping alternator drive ______ can cause low charging system output & lead to a dead battery. (also known as accessory drive belt) Train Belt Pinion

Automotive Service Tensioner Alternator Balancer Accessory Drive Belt