Cars are a necessity in our lives, but there are many people in our lives who don't know much about cars. Today, I will explain to you the details of the introduction to automobiles. First of all, let me introduce myself, my name is Meng Lei, and my motto is: challenge yourself, surpass yourself, and achieve yourself. I will give you a few minutes to introduce yourself to which beautiful city you are from。。。。。。。。

First of all, we open the second chapter of the book on page 155, the components of the engine. The students studied on their own for ten minutes first, I have something to do, go out and sit on the mark if you don't understand it, and wait for me to come back and explain it to you one by one.

Air filter: The function is to filter the dust and impurities in the air and let clean air enter the engine, which is important for the life and normal operation of the engine. If there are more dust impurities adsorbed by the air filter, it will be clogged and affect the work of the engine, so it must be replaced regularly. If you are driving in a dusty place, such as a sandstorm, the cycle between changing the air filter will be shortened.

Batteries are used to store electricity, and general batteries include lead-acid batteries, nickel-iron batteries and nickel-cadmium batteries. The positive electrode of the lead-acid battery is lead dioxide, and the negative electrode is lead, with dilute sulfuric acid solution as the electrolyte. Charge & Discharge 😉 。。。。。。

Brake fluid: Brake fluid. At present, the braking of cars is generally hydraulic, that is, the brake fluid is used as the medium to transmit the force of the brake pedal to the brake disc.

Ignition coil: converts low voltage into high voltage, and discharges through the spark plug under it to generate an electric spark, igniting the oil and gas mixture to do work for combustion.

Engine oil: Needless to say, mineral oil or synthetic oil plays a role in lubricating and sealing. If the engine lacks lubrication with oil, it will cause serious problems such as cylinder pulling and pads.

Power steering oil: Now the steering power of the car is generally the traditional hydraulic power, since it is hydraulic, the corresponding oil medium is needed. Of course, some cars have already started to use electric assistance, which is also the development trend of the future.

Antifreeze: The channel circulation in the radiator and the engine body is used to cool the liquid medium of the engine, mainly water and additives, because it has the function of antifreeze, it is called antifreeze.

Glass water: Everyone on the earth knows that the glass is used to wipe the glass, and the glass kettle I believe everyone knows that the appearance is like a fan-shaped fountain in the middle, open the engine compartment Now you should know where it is!

Oil dipstick: A ruler that detects the amount of oil. When using the engine, turn off the engine first, pull out the oil dipstick, wipe the oil on it with a clean paper towel, and then insert and pull it out, to see the oil level of the oil, it must be between the two upper and lower limit scales on the ruler, not more or less.

Fuse box: There are fuses for a lot of electrical equipment inside, as well as relays. Little F has a total of two fuse boxes, and the other is on the lower left of the cab driver. For details, please refer to the instructions on the car.

Air intake: The inlet of the engine intake, this is optimized, the position has been improved a lot, the position of the air intake of the old car is relatively low, and the engine is easy to enter the water when wading. The location of the air intake is the limit of the car's wading depth and must not be exceeded. Once the engine is flooded, the consequences are serious~!

Electronic throttle: It is said that it is the throttle, but it has nothing to do with oil, it is connected to the intake manifold and the intake manifold, which controls the amount of air intake into the engine, so the correct statement should be the electronic throttle. The engine control module calculates the amount of fuel injected based on the air intake, so that the engine speed and power output can be controlled.

Intake manifold: The intake manifold branches from the intake manifold to the intake manifold for the individual cylinders. Although it is just a tube, it is a high-tech one, such as a variable intake manifold.

Carbon canister valve: The canister adsorbs the gasoline vapor in the fuel tank, and after the canister valve is opened, the engine will suck the gasoline vapor adsorbed by the activated carbon in the canister into the intake pipe, and finally participate in combustion. This is not only good for the environment, but also saves a little oil.

Gasoline dispenser: dispenses gasoline to each fuel injector, and the fuel injector is connected to it underneath, which is blocked and invisible.

Crankcase ventilation pipe: the right side is the intake pipe, the left side is the exhaust pipe, the function is to ventilate the crankcase.

Fuel injector: The gasoline after the gasoline pump is pressurized is sprayed out in the form of atomization. The holes of the fuel injector are very small, which allows for better atomization of gasoline, but at the same time, it is easy to clog, so it is necessary to clean the fuel injector regularly.

Vacuum booster: The force generated by the vacuum negative pressure of the engine intake pipe and the pressure difference between the atmospheric pressure is used to assist the braking, which can reduce the "labor intensity" of the driver.

Brake master cylinder: Brake fluid pressure is generated, which is transmitted to each brake cylinder through the brake oil line.

Clutch master cylinder: When the clutch pedal is pressed, the clutch master cylinder connected to the pedal will act, generating hydraulic force, which is transmitted to the clutch pump along the pipeline, and finally converted into mechanical force to release the clutch. The little F's clutch operating system is hydraulic, sharing a hydraulic fluid with the braking system, so there is a pipe connected to the brake fluid tank.

ABS pump: a very important safety device~! ABS means automatic anti-lock braking system, when stepping on the brakes, the ABS system will automatically apply dozens of point brakes per second to each wheel according to the vehicle speed, braking strength and other information to prevent the tires from locking and skidding, and the body from controlling. It also provides steering ability when braking to avoid obstacles.

Power Steering Pump: Provides hydraulic power for power steering assistance. Recently, some owners in the jar have reported the problem of abnormal belt noise, that is, the offset of the booster pump bracket, which causes the pulley of the booster pump to be not on the same plane as other pulleys, and the abnormal friction between the belt and the pulley when it is running, resulting in noise.

Air conditioning compressor: compresses the vaporized refrigerant into a liquid state, and then pumps it into the evaporator to produce the coolness we need~!

Exhaust manifold: The exhaust gas generated by each cylinder of the engine is fed into the exhaust main pipe through the exhaust manifold, and then discharged into the atmosphere through the three-way catalytic converter and muffler. Because the exhaust gas of the engine is very hot, a protective shell is added here to play the role of heat insulation. See the sign of that hand, there is an X, which means don't touch it, it will burn!?

Oxygen sensor: detects the oxygen content in the exhaust gas and transmits the signal to the engine control module to control the amount of fuel injected, so that the fuel can be fully burned and emissions can be reduced. If there is a problem with the oxygen sensor, it is said that the engine will idle unsteadily and fuel consumption will increase dramatically.

Clutch pump: The clutch of small F is hydraulically driven, and the hydraulic force is generated by the clutch master cylinder, which is transmitted to the clutch pump along the clutch oil pipe to generate mechanical force, which pushes the release rod on the right side and breaks the clutch. The hydraulic one is much easier to use than the cable one.

Gear selection and shift cable: One end of the cable is connected to the gear lever in the cab, and the other end is connected to the gear selection and shift mechanism. The cable has a great impact on the feeling of shifting gears, and if there is a jerky and difficult gear, it may be a problem with the cable!!!

Starter: A small motor, when the key switch is turned to the starting position, the starter rotates, and at the same time drives the engine to rotate, and the auxiliary engine starts into a working state. If it is difficult to start the car, the duration of the ignition should not be too long, a few seconds at a time. If you have been igniting several times in a row without success, you should screw the key back on, wait a few minutes to give the starter time to dissipate heat, and then power it on again. This prevents the starter from burning out.

The petrol pump is located under the rear seats, and when the rear seats are lifted, you will see a black lid with the petrol pump underneath. After the cover is removed, you can see the gasoline pump, it is actually installed on the fuel tank, but it is troublesome to remove the fuel tank, so make a hole in this place, and it can be easily replaced when the gasoline pump is damaged. The gasoline pump pressurizes the gasoline and transports it to the fuel injector by the fuel supply pipeline, because there is pressure, the gasoline sprayed by the fuel injector will be atomized well and mixed with the air evenly.

There is a very important precaution in the use of gasoline pumps, which is to keep the oil in the fuel tank not too low. Don't wait for the oil lamp to turn on before refueling, just add it when you see it, because the gasoline pump depends on the gasoline in the tank to cool, if the oil is too little, the cooling effect will become worse, and the gasoline pump will be burned in serious cases.

Gasoline filter: Installed in front of the right rear wheel, next to the fuel tank, the function is to filter out the moisture, impurities and gum in the gasoline, prevent the fuel system from being blocked, and ensure the normal operation of the fuel supply device.

Brake oil hose: transmits the force of the brake pedal.

Brake cylinder: converts the hydraulic force of the brake fluid into a mechanical force that acts on the brake caliper. The friction pads on the caliper rub against the brake disc, which converts the car's kinetic energy into heat energy and dissipates it, causing the car to stop.

Stabilizer bar: Reduces body roll and increases handling when steering.

Half shaft: Transmits the power of the engine to the wheels to drive the car.

Steering levers: Control the steering of the wheels and adjust the toe-in.

Lower swing arm, upper arm: Suspension member that connects the wheel and the car body.

Cardan shaft: connected between two shafts, the transmission angle between the two shafts can be arbitrarily changed within a certain range. Because the front wheels are both driven and steered~!

Spring: An elastic element that acts as a cushion. This one is a coil spring, a leaf spring is used for trucks, and some high-end cars use a gas spring.

Shock absorber: A hydraulic damping element that absorbs the energy of the road impact and suppresses the force of the rebound after the spring is compressed. It works in conjunction with springs to form a shock absorption system that is used to reduce the vibration of the vehicle body caused by uneven road surfaces. The damping force of the shock absorber and the elastic force of the spring will produce different chassis styles after different ** matching, such as sports and comfort.

Handbrake Cable: When the handbrake is pulled, the rear wheel is braked, just like a bicycle brake.

Exhaust pipe soft connection: Blocks the transmission of engine vibration.

Subframe: A suspension member that connects the lower swing arm to the car body.

Three-way catalytic converter: converts NOX, CO and other harmful gases in the exhaust gas into N2, CO2 and other harmless gases to reduce emission pollution.

Muffler: Eliminates the noise of the engine exhaust. Without it, our cars would have to roar like sports cars.

Activated carbon canister: A small black canister installed on the right side of the rear of the car, filled with activated carbon, connected to the fuel tank, and used to adsorb gasoline vapor. When the car starts, the activated carbon canister solenoid valve opens in time to pour the absorbed fuel vapor back into the intake manifold to achieve the purpose of fuel saving and environmental protection.

Torsion beam: The torsion beam semi-independent suspension component can produce a certain torsional deformation, so that the suspension performance is between independent suspension and non-independent suspension. This kind of suspension is characterized by low cost, high strength, small footprint, and average comfort, and is mostly used in small cars. This class was the hardest class for me, the teacher talked too much nonsense and didn't talk anything useful, and I was going to fall asleep listening to it! I only heard the sound of the end of class, and the teacher said that the students talked a little too much today! After class, remember to review what was taught in class! I'll ask them all in the next class. I thought to myself, oh, buy ga? Finally went to review a fart.,Lao Tzu has time to go back to the dormitory ̄ look。。。 Friends know it! Hee-hee!! ￣