Components of starting system
- Battery. The automotive battery, also known as a lead-acid storage battery, is an electrochemical device that produces voltage and delivers current.
- Ignition Switch. The ignition switch allows the driver to distribute electrical current to where it is needed. ...
- Neutral Safety Switch. ...
- Starter Relay. ...
- Battery Cables. ...
- Starter Motor. ...
- Battery. ...
- Ignition Switch. ...
- Neutral Safety Switch. ...
- Starter Relay. ...
- Battery Cables. ...
- Starter Motor.
What is the starting system of a car?
The “starting system”, the heart of the electrical system in your car, begins with the Battery. The key is inserted into the Ignition Switch and then turned to the start position.
How is the starting system tested?
How the starting system is tested. A technician checks the battery state of charge. with the battery tester. When the starter motor doesn't work, first the state of charge of the battery, battery terminals and battery cables must be checked.
What are the two types of starting systems?
These are the two types of starting systems, one is with a starter relay starting system, and the second one is without a starter relay starting system. The function of the starter relay is to control a larger current by using a smaller current.
What are the most common starting system problems?
Starting system problems are common and not all of them are caused by a faulty starter motor. To find the cause of the problem, the starting system must be properly tested. If when you are trying to start the car, you hear the starter cranks as usual, but the car doesn't start, then the problem is most likely.
What are the four components of a starting system?
The starting system includes the battery, starter motor, solenoid, ignition switch and in some cases, a starter relay. An inhibitor or a neutral safety switch is included in the starting system circuit to prevent the vehicle from being started while in gear.
What are the 2 circuits of the starting system?
The starting system consists of two separate circuits, high amperage circuit (150A - 350A) and low amperage circuit (< 20A).
What's a starting system?
Starting system is one of the engine`s system, which provides an engine start. To make it, the crankshaft must be turned at some speed, so the engine sucks air-fuel mixture and compresses it. The flywheel with a large gear ring is into the engine.
What is starting circuit?
The starter circuit Turn the key beyond the 'ignition on' position to feed current to the solenoid. The ignition switch has a return spring , so that as soon as you release the key it springs back and turns the starter switch off. When the switch feeds current to the solenoid, the electromagnet attracts an iron rod.
How does a starter system work?
When you turn the ignition switch, the starter motor is energized, and the electromagnet inside the body engages. This pushes out a rod to which the pinion gear is attached. The gear meets the flywheel, and the starter turns. This spins the engine over, sucking in air (as well as fuel).
What are the main components of the starter drive mechanism?
Starter Motor components & their functions:Armature. The armature is an electromagnet, mounted on the drive shaft and bearings for support. ... Commutator. ... Brushes. ... Solenoid. ... Plunger. ... Lever Fork. ... Pinion. ... Field Coils.
What is starting engine?
A starter (also self-starter, cranking motor, or starter motor) is a device used to rotate (crank) an internal-combustion engine so as to initiate the engine's operation under its own power. Starters can be electric, pneumatic, or hydraulic.
What are the types of starter motor?
Types of Motor StartersManual Starters.Magnetic Motor Starters.Direct-On-Line Starter.Rotor Resistance Starter.Stator Resistance Starter.Auto Transformer Starter.Star Delta Starter.NEMA Rating.More items...
What is a starter relay?
Starter relays are devices that use low current to control high current components. Solenoid and Starter Motor: A starter solenoid is an electromagnetic device that serves two purposes. It completes the circuit between the battery and the starter motor.
What is the purpose of ammeter on starter?
A starter will wear, causing high current draw and parts like the brushes, windings, and bushings must be replaced. Use an ammeter to check for high current draw.
How does a starter motor work?
The starter motor then cranks the engine so that the piston, moving downward, can create a suction that will draw a Fuel/Air mixture into the cylinder, where a spark created by the Ignition System will ignite this mixture. If the Compression in the engine is high enough and all this happens at the right Time, the engine will start.
What is a starter motor?
Starter Motor. The starter motor is a powerful electric motor, with a small gear (pinion) attached to the end . When activated, the gear is meshed with a larger gear (ring), which is attached to the engine.
Why do cars have starter solenoids?
Some cars use a starter solenoid to accomplish the same purpose of allowing a small amount of current from the ignition switch to control a high current flow from the battery to the starter. The starter solenoid in some cases also mechanically engages the starter gear with the engine. Battery Cables.
How much current does an automobile starter use?
An automobile starter uses a large amount of current (250+ amps) to start an engine. If we were to allow that much current to go through the ignition switch, we would not only need a very large switch, but all the wires would have to be the size of battery cables (not very practical).
What is the device that disengages the starter gear from the engine gear?
When the engine starts to spin faster than the starter, a device called an overrunning clutch (bendix drive) automatically disengages the starter gear from the engine gear.
What is an automotive battery?
Battery. The automotive battery, also known as a lead-acid storage battery, is an electrochemical device that produces voltage and delivers current. In an automotive battery we can reverse the electrochemical action, thereby recharging the battery, which will then give us many years of service.
How many CCAs does a car battery have?
An average battery today will have a CCA (Cold Cranking Amps) of 500. With the many different makes and models of cars available today, batteries will come in many different sizes, but all sizes come in many CCAs. Make sure you get a battery strong enough to operate properly in your car.
What is the starting system of a car?
The starting system is a crucial system of the car. It is based on converting the chemical energy stored in the battery into electrical and then into mechanical energy in the starter motor.
Where is the starter motor located?
It is mounted on the back of the engine casing or on the transmission housing where the engine and transmission meet.
What is the purpose of a starter safety switch?
The function of the starter safety switch is to prevent the car from an accidental start-up with the car in the gear or clutch not depressed, as it can damage the transmission by jerking forward or backward.
How does a starter work?
The starter needs a heavy electric current , which it draws through thick wires from the battery . No ordinary hand-operated switch could switch it on: it needs a large switch to handle the high current. The switch has to be turned on and off very quickly to avoid dangerous, damaging sparking.
How does an engine start?
To make an engine start it must be turned at some speed, so that it sucks fuel and air into the cylinders , and compresses it. The powerful electric starter motor does the turning. Its shaft carries a small pinion ( gear wheel) which engages with a large gear ring around the rim of the engine flywheel . In a front-engine layout, the starter is ...
What happens when an inertia starter spins?
When an inertia starter spins, the pinion moves along the thread of the motor shaft and engages with the flywheel gear ring. It then reaches a stop at the end of the thread, begins to turn with the shaft and so turns the engine. The inertia of the heavy piston assembly prevents it from spinning immediately when the motor shaft turns, ...
What happens when the starter motor stays engaged?
Also, if the engine starts and the starter motor stays engaged, the engine will spin the starter so fast that it may be badly damaged. The starter motor itself has a device, called a Bendix gear, which engages its pinion with the gear ring on the flywheel only while the starter is turning the engine. It disengages as soon as the engine picks up ...
Why do I need a return spring on my starter motor?
The return springs are needed because the starter motor must not turn more than it has to in order to start the engine.
How many wires are needed to start a starter switch?
Only one wire is needed to carry current to each component. The starter switch is usually worked by the ignition key. Turn the key beyond the 'ignition on' position to feed current to the solenoid. The ignition switch has a return spring , so that as soon as you release the key it springs back and turns the starter switch off.
What is a pre-engaged starter?
Pre-engaged starter. The pinion is moved by the solenoid; there is an initial period in which the motor turns slowly to allow engagement, so the whole operation is more gentle and causes less wear on the teeth. To make an engine start it must be turned at some speed, so that it sucks fuel and air into the cylinders , and compresses it. ...
What is the starting system of an engine?
Starting system (Engine) Starting system is one of the engine`s system , which provides an engine start. To make it, the crankshaft must be turned at some speed, so the engine sucks air-fuel mixture and compresses it. The flywheel with a large gear ring is into the engine. The flywheel rim has the teeth on the surface.
What are the windings on a starter made of?
Inside the housing there are field windings wound around cores attached to the housing. These windings are made of thick conductive wire capable of withstanding strong electric current. The windings generate an electromagnetic field that can rotate the starter armature.
How does a drive gear work?
After the gear rim engages with the drive gear, the engine spins. The drive gear rotates the gear rim (while the window clutch works). When the engine is started, the engine rotates the drive gear, while the window clutch is disconnected. The drive gear rotates idle so as not to damage the electric motor. 2.
What are the elements of an anchor?
One of the elements of the anchor is the core, with grooves along which are located the turns of the windings of the anchor. Both ends of each winding are connected to the collector. The torques created by each of the windings add up so that you can rotate the armature, more precisely the armature shaft.
What is a screw slot on a starter?
There are screw slots on the starter motor clutch. Screw slots are also available on the armature shaft. The drive gear is able to slide along them while rotating. Screw slots provide smooth engagement of the drive gear with the gear rim. After the gear rim engages with the drive gear, the engine spins.
Can a starter motor turn more than one time?
Starter motor must turn no more time than need, to start the motor. A long Engine and starter work at one time can do starter badly damaged. Consider the electric motor of the starting system that creates torque. The body of the electric motor is made of steel and has the appearance of a cylinder.