The ignition switch is not to control the engine, what is the engine used for

The ignition switch is a switch on the automotive electrical system, which is responsible for the ignition system, the starting system, and the switching off of each electrical appliance. The ignition switch generally has three gears (clockwise), the first gear: preheating gear; Second gear:

work files; Third gear: Startup gear. When starting the car, turn clockwise to the end is the starting gear, turn on the starting circuit, the battery current is connected to the starter magnetic switch through the switch, the magnetic coil is energized and engages the iron core, and the driving lever is driven to make the starter gear meshed with the engine flywheel gear, and the starter armature circuit is connected, the starter starts to work, drives the engine to rotate, when the engine is ignited, release the ignition key, under the action of spring force, know to return to the working gear, disconnect the starting circuit, and the car circuit is in normal working condition.

What is an engine used for? --The engine is the heart of the car, the power source, which is to provide power for the car to drive. The job of the engine is to convert the heat energy into the mechanical energy that drives the crankshaft to rotate through the combustion of fuel in the cylinder, and the power is transmitted by the drive train to the drive wheels to propel the car to walk.

The ignition switch is the keyhole of the car.

The engine is the power unit of the car.

It's the tube engine, and the engine acts like the human heart.

If the ignition switch controls the starter, the starter drives the engine.

The engine is what powers the car.

The control function of the engine electronic ignition system mainly includes ignition time control, charging time control and deflagration control. Ignition time control is mainly to control the ignition time of the engine, so as to increase the engine power. Charging time control, also known as closed angle control, is mainly a length of energizing time for the primary winding of the engine's ignition coil.

Deflagration control is mainly used to control engine deflagration, a slight deflagration can make the engine power rise, fuel consumption decrease, but when the deflagration is serious, it may cause the metal to knock on the damp heat Hua C or C or C or C or C or C or C and overheating and other phenomena.

1. Power supply: It is generally composed of a battery and a generator, which mainly provides the required electrical energy for the ignition system. Sensor: It is used to detect various operating parameters of the engine and provide the signals required for ignition control for the ECU.

2. ECU: It is the center of the electronically controlled ignition system.

3. Igniter: an executive element for electronically controlled ignition.

4. Ignition coil: store the energy required for ignition, and convert the low-voltage electricity provided by the power supply into a high-voltage electricity of 15 20kV sufficient to produce breakdown sparks between the electrodes.

5. Distributor: According to the ignition sequence of the engine, the high-voltage electricity generated by the ignition coil is successively transmitted to the spark plugs of each cylinder.

6. Spark plug: use the high-voltage electricity generated by the ignition coil to generate an electric spark and ignite the mixture in the gas cylinder.

It is composed of a battery, a generator, an ignition coil and a spark plug for the sub-cylinder line.

There are two types of engine ignition: spark ignition and compression ignition.

Spark ignition. Spark ignition, the full name of "electric spark ignition" and "spark plug ignition", is a method of forced ignition. The arc discharge principle between the two electrodes of the spark plug is used to ignite the combustible mixture and ignite it quickly. Towards the end of the compression stroke, the combustible mixture of fuel and air is compressed by the piston in the cylinder to a certain pressure and temperature, immediately at 1c?

A 15kV high-voltage current is fed into a spark plug mounted on the cylinder head, which creates an electric spark in the cylinder, causing the combustible mixture to ignite and burn.

Compression ignition. Compression ignition is a type of ignition in diesel engines. Diesel engines use diesel as fuel, which has a low autoignition temperature (around 220), high viscosity, and is less prone to evaporation than gasoline. Moreover, the diesel engine itself does not have a spark plug, and its compression ratio is also greater than that of the gasoline engine, so the diesel engine relies on the compression stroke to compress the mixture to the ignition point to make it automatically ignite, so this ignition method is called compression ignition.

1. Traditional ignition.

The working process of the mechanical ignition system is to drive the distributor shaft to rotate, and the cam on the distributor shaft rotates to make the ignition coil primary contact open and close and generate high voltage.

2. Electronic ignition.

The electronic ignition system is completely different from the mechanical ignition system in that it has an electronic control device for ignition, and there are internal ignition control curves required by the engine in various operating conditions.

According to the composition structure: 1, with distributor type 2, without distributor type.

According to the principle of signal generation: 1, magnetoelectric effect 2, Hall electric signal 3, photoelectric type.

According to the control mode: 1, double cylinder simultaneous ignition control 2, independent ignition control 3, diode distribution ignition mode.

According to the ignition coil application: 1, share a closed magnetic circuit ignition coil 2, double cylinders share an ignition coil 3, each cylinder independent ignition coil.

Hello! Depending on the question you asked. There are several options. (Only gasoline engine ignition system) is classified by ignition system:

Distributor ignition system 2Electronic ignition system 3Electronically controlled microcomputer room ignition system.

Classified according to ignition coils:1Simultaneous ignition of both cylinders 2Single-cylinder independent ignition is in the firing order: the engine is fired in an or

Previously, some models were designed to ensure ignition energy and full combustion. There is also a case where two spark plugs are installed in a cylinder. There are two ignition coils. )

The ignition method of diesel engine and gasoline engine is different, diesel engine is compression ignition, gasoline engine is ignition, ignition system.

There are two kinds, distributor and electronic! The distributor is eliminated, and the current car uses electronic ignition.

There are only two ways to ignite the engine: compression ignition and ignition.

Isn't it an electronically controlled engine ignition system? Honorable eggplant.

As follows: it is the engine electronic control system, which mainly includes the electronic control fuel injection system, the electronic ignition system and other auxiliary control systems. They have the following functions: 1. Fuel injection control --- electronically controlled fuel injection Qingxun inspection system.

It is not an electronically controlled ignition device.

a.Ignition advance angle control.

b.Power-on time control.

c.Fuel injection hill block timing control.

d.Detonation control cavity.

Answer: C

The ignition system consists of the following parts:1The orange hole of the electronically controlled engine ignition system is composed of a power supply, a sensor, an ECU, an igniter burial, an ignition coil, a distributor, and a spark plug; 2.

The most basic function of an electronically controlled ignition system (ESA) is early ignition control. According to the signals of the relevant sensors, the system judges the operating conditions and conditions of the engine, and selects the most ideal ignition to ignite the mixture in advance. 3.

So as to improve the combustion process of the engine, to achieve the purpose of improving the engine power, economy and reducing emission pollution. In addition, the electronically controlled ignition system has a power-on time and deflagration control function.

Summary. Pro, turn on the main switch of the car to start the starter, generally because the power lock is broken, there is a short circuit inside, and the other may be a problem with the starting circuit. There are several positions of automotive power switches, which are generally locked, closed, opened, and started; Under normal circumstances, only the normal power part is powered in the closed state, the power supply is normal in the open state, the starter works in the startup state, and other devices are still powered normally, and the starting position will not self-stay or be put for a long time, and the open state will be restored after the startup is completed.

The solution to the broken power lock is to replace the power lock, and the problem of the starting circuit is treated on a case-by-case basis.

Dear, hello, why does the car ignite the switch by itself: is the ignition lock cylinder has a short circuit, or the computer system is disordered, to be differentiated from the inspection and exclusion.

Pro, turn on the main switch of the car power starter to start by yourself, generally because the power lock is broken, there is a short circuit inside, and the other may be the starting circuit question. There are several positions of automotive power switches, which are generally locked, closed, opened, and started; Under normal circumstances, only the normal power part has power in the closed state, the normal power supply in the open state, the starter works in the startup state, and other equipment is still normally powered by power, and the starting position will not self-stay, nor can it be put for a long time. The solution to the broken power lock is to replace the power lock, and the problem of the starting circuit is treated on a case-by-case basis. Only ruined.

The function of the engine ignition system is to generate an electric spark with sufficient energy between the two electrodes of the spark plug at regular intervals according to the working sequence of the cylinder; The ignition system consists of a battery, a generator, a distributor, an ignition coil and a spark infiltration block. The ignition system is an important part of the gasoline engine, and the good performance of the ignition system has a great impact on the power, fuel consumption and exhaust pollution of the engine. All devices capable of generating an electric spark between the two electrodes of the spark plug are called engine "ignition systems".

The working principle of the car ignition system is as follows:

1. The working process of the mechanical ignition system is to drive the distributor shaft to rotate, and the cam on the distributor shaft rotates to make the primary contact of the ignition coil open and close and generate high voltage;

2. The ignition high-voltage electricity passes through the distributor shaft and is sent to the spark plug of each cylinder in order according to the working requirements of the engine, and the spark plug emits an electric spark to ignite the gas buried body in the combustion chamber;

3. The distributor housing can be manually rotated to adjust the basic ignition advance angle (that is, the ignition advance angle when idling), and there is also a vacuum advance device, which provides different advance angles according to the change of vacuum degree in the intake pipe;

4. The electronic ignition system is completely different from the mechanical ignition system, it has an electronic control device for ignition, and there are ignition control curves (maps) required by the engine under various working conditions;

5. Judge the working state of the engine through a series of sensors such as engine speed sensor, intake pipe vacuum sensor (engine load sensor), throttle position sensor, crankshaft position sensor, etc.;

6. Find out the ignition advance angle required by the engine in this working bend and shouting state on the map diagram, and carry out ignition according to this requirement;

7. Then the above ignition requirements are corrected according to the knock sensor signal, so that the engine works at the best ignition time.

Millions of car purchase subsidies.

The working principle of the engine igniter is that the primary circuit of the ignition system is turned on or off according to the ignition signal input by the signal generator, so that the secondary winding of the ignition coil generates ignition high voltage. The ignition of the engine is on the cylinder of the engine. The ignition is damaged by a variety of multi-chain positives, which may be a blown ignition fuse, a damaged ignition coil, a faulty distributor or a lack of battery power, which will cause the igniter to not ignite.

The reasons for the failure of the igniter are as follows:1When using an igniter, the car suddenly stalls with no apparent pattern.

After the platinum is replaced, the fault is eliminated or. Generally, the igniter circuit has false contact, and the circuit is damaged and grounded. 2.

After running for a while, the car became unstable and the car went out. After cooling for a while, it returns to normal. This phenomenon has not been found with platinum.

Generally, the igniter chip has a high-speed flameout phenomenon, and the igniter needs to be replaced. 3.The car is normal before the ignition is installed, but after installation and commissioning, the idle speed is unstable when starting, the engine shakes seriously when refueling, and sometimes it is accompanied by the phenomenon of exhaust pipe discharge.

After the ignition angle was adjusted, it still did not improve. Generally, the red and black wires of the sensor are reversed; 4.It is difficult to start a car with an igniter in cold weather, but it can be started normally with platinum, but it can be started with a cart or tow.

Generally, the sensor gap is too large. If the clearance is normal, observe whether the motor can rotate normally when starting. If the rotational speed is too slow, the motor hole is swept, the battery is out of power, or the ground wire is not properly grounded.