Starting Systems and Motor Designs: Summary

The starting system is a combination of mechanical and electrical parts that work together to start the engine. The starting system components include the battery, cable and wires, the ignition switch, the starter solenoid or relay, the starter motor, the starter drive and flywheel ring gear, and the starting safety switch. The armature is the

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Integrated Starter Generator

One of the newest technologies to emerge is the integrated starter generator (ISG). Although this system can be used in conventional engine-powered vehicles, one of the key contributors to the Hybrid’s fuel efficiency is its ability to automatically stop and restart the engine under different operating conditions. A typical Hybrid vehicle uses a 14 kilowatt

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AC Motor Principles

FIGURE. AC three-phase motor used in a HEV. A few years ago, the automotive technician did not need to be concerned much about the operating principles of the AC motor. With the increased focus on HEVs and EVs, this is no longer an option since most of these vehicles use AC motors. FIGURE. AC voltage

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Cranking Motor Designs

The most common type of starter motor used today incorporates the overrunning clutch starter drive instead of the old inertia-engagement bendix drive. There are four basic groups of starter motors: Direct drive. Gear reduction. Positive-engagement (moveable pole). Permanent magnet. Direct Drive Starters FIGURE. Solenoid operated Delco MT series starter motor. A common type of starter

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Starter Control Circuit Components

Video: Motor Starter Control Circuit Demonstration Magnetic Switches The starter motor requires large amounts of current (up to 300 amperes) to generate the torque needed to turn the engine. The conductors used to carry this amount of current (battery cables) must be large enough to handle the current with very little voltage drop. It would be

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Cranking Motor Circuits

The starting system of the vehicle consists of two circuits: the starter control circuit and the motor feed circuit. These circuits are separate but related. Hie control circuit consists of the starting portion of the ignition switch, the starting safety switch (if applicable), and the wire conductor to connect these components to the relay or

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Starter Drives

The starter drive is the part of the starter motor that engages the armature to the engine fly-wheel ring gear. A starter drive includes a pinion gear set that meshes with the flywheel ring gear on the engine’s crankshaft. To prevent damage to the pinion gear or the ring gear, the pinion gear must mesh

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