Quick facts about cars, little facts about cars

1. Common sense of vehicle structure.

A car mainly consists of an engine, chassis, body, and electrical equipment. The power generated by the engine is transmitted to the driving wheels through the clutch, transmission, cardan drive shaft and differential, which drives the car to drive.

According to the position of the engine and drive wheels, it is divided into engine front rear wheel drive FR, FF, RR, and engine front four-wheel drive 4WD.

According to the engine fuel, there are gasoline engines, diesel engines, gaseous fuel engines.

New energy vehicles include pure electric vehicles, hybrid vehicles, and fuel cell vehicles.

The engine work cycle includes four processes: air intake, compression, work and exhaust. The crankshaft of the four-stroke engine rotates for two weeks, and the piston reciprocates four strokes to complete a working cycle.

Automobile chassis - wheels, transmissions, propeller shafts, steering systems, brake systems.

Automotive electrical equipment - batteries, generators, lighting and signaling devices, wipers and scrubbers, starter systems.

2. Vehicle performance.

During braking, there are three situations in which the car loses steering stability: brake mistracking, braking side slip and cornering braking loss of steering ability.

3. The main safety device of the vehicle.

Safety headrests, seat belts, airbags, anti-lock braking system (ABS), child safety seats, child safety locks, instrumentation (speed and odometer, engine tachometer, water temperature gauge (coolant), fuel gauge, indicator and alarm lights), lighting and signalling.

4. Driving operating mechanism.

Steering wheel, clutch pedal, accelerator pedal, brake pedal, transmission lever, parking brake lever, various switches.

5. Vehicle running materials.

Gasoline, engine lubricants, coolant, windshield washer fluid.

6. Vehicle inspection and maintenance.

Check the wipers and scrubbers, batteries, coolant, lubricating oil, fan belts, lights, tires, brake fluids before driving.

Replace tires if guaranteed.

What are some things to know about cars?

He wondered how many cars were as many as train wheels.

I don't know what you want to know.

<> "A Little Bit About Cars.

Three-second knowledge points: These little knowledge about cars are unpopular but easy to use, so check them quickly.

There are some small knowledge about vehicles, you may not know, but you can use it at critical moments, and take notes quickly. God is late.

Why is the brake pedal higher than the accelerator pedal?

Whether it is a manual transmission car or an automatic transmission car, the position of the brake pedal is generally higher than the accelerator pedal, mainly to increase the recognition of the two, to avoid the danger of using the brake as the accelerator, so why is the brake higher than the accelerator? In layman's terms, if you put your feet on the accelerator pedal for a longer time while driving, if it is particularly high, your legs and feet will be sore for a long time.

Why does the car have a line on the outside of the rearview mirror?

After buying a car, many people will find that there is a line on the outside of the left rearview mirror, which is not a flaw, but is to expand the field of vision when driving, reduce the blind spot of the field of vision, and provide certain safety assistance to the driver when merging, turning and observing the situation behind the vehicle.

What is the life of a car airbag?

Theoretically, the design life of the airbag of the car is the same as the service life of the whole vehicle. But the actual life of the airbag is not that long. Although there is no definite shelf life, the quality of the airbag is difficult to guarantee even if it does not detonate after 8 to 10 years of use on a cruise ship.

There are also "escape pods" in the car.

In the unfortunate event of a car accident or flooding, doors, windows, and sunroofs can be used as escape routes. But if the vehicle is crushed and deformed, the doors and windows cannot be opened, and the trunk can also become your escape route. In times of crisis, climb to the back row, fold down the second row of seats, get into the trunk, find the trunk turn switch, and escape smoothly.

<><1.Electricity is used when the fire is turned off.

Many car owners said that when they were waiting for someone, they parked the car on the side of the road, turned off the engine, and inserted a little key to take the electricity to listen**. However, if the vehicle is turned off, it will cause the car battery to consume too much power, and it is likely that the car will not start. So, after the car is turned off, don't use electricity anymore.

Because if you do this often, you may have a much shorter life on your car's petrol pump. Because the gasoline pump is installed in the fuel tank, most of the gasoline pumps used in cars currently need to rely on gasoline for cooling.

3.Warm up for a long time.

In winter, many car owners are used to heating up the car for a long time, but it is not necessary. Heating up for a long time is not only not beneficial, but will exacerbate the formation of carbon deposits, so you should wait for the revs to drop to the normal area, drive slowly in gear, and then drive in high gear after the water temperature rises.

4.Fight in place and fight in the direction.

I often see many friends in order to reduce the turning radius of the vehicle when the vehicle turns around, and are accustomed to playing in situ direction, although this can reduce the turning radius, but it is undoubtedly very harmful to the vehicle. This increases the wear and tear on the surface of the tire and reduces the service life of the tire. The in-situ cover will increase the burden on the hydraulic or electronic power steering machine.

Moreover, the steering machine has enabled many cars to achieve vacuum assistance, but that only reduces the driver's operating intensity, and does not reduce the burden on the steering machine itself.

5.Portable inflatable pump for cars.

Maintaining the correct tire pressure can reduce wear and prolong service life, while maintaining a high level of safety performance and avoiding accidents such as punctures. Therefore, it is very important to correct the tire pressure. This on-board portable inflator pump can help riders correct tire pressure, and can quickly and accurately inflate the tires when the tires are deflated.

6.The car is parked on uneven roads.

In some denser communities or narrow lanes, many car owners are accustomed to parking one wheel on the shoulder of the road for convenience. As everyone knows, the vehicle is in an unbalanced state for a long time, which will lead to excessive four-wheel drop, and the tires and suspension in the low position will bear greater pressure, which will easily lead to premature deformation of the suspension over time, and in serious cases, it will also lead to frame deformation.

<> "Some car trivia.

1. Do you need to do dynamic balancing after the car repairs the tires?

A: Yes. To answer this question, first of all, let's figure out this content "dynamic balance".

The dynamic balance of automobile tires is to balance the circumferential direction of automobile tires, but due to tire manufacturing, road driving and other reasons, it is impossible for the tires to achieve the balance of each point, therefore, we need to install "lead blocks" on the position of the car wheels, so as to ensure the safe and reliable operation of the wheels. When we repair the tire, the position between the tire and the wheel hub cannot not change, so we need to test the dynamic balance of the tire and reinstall the lead block to ensure the wheel balance. When your car has the following situations, please Huiyan you might as well do a dynamic balancing, after replacing the tire or repairing the tire, after the vehicle tire has a serious impact, the vehicle goes straight to one side of the deviation, the steering wheel is trembling, and the tire is worn on one side.

2. Why does the frequency of one-sided turn signals suddenly increase in the car?

Answer: This situation is mostly caused by individual damage to the one-sided turn signal, our common one-sided turn signal generally has three positions, namely the front (in the lamp body), in the middle (rearview mirror, fender), rear (in the lamp body), when any one of the bulbs in one side of the turn signal is damaged, it will cause the current of the other two bulbs to increase, and the natural frequency will be accelerated.

3. Why is it still very fuel-intensive for cars with small displacement?

Answer: First of all, let's figure out this concept, car displacement: the sum of the working volume of all cylinders of the engine, simply put, the sum of the volume of all cylinders of the engine that can inhale the mixture.

The size of the displacement directly determines the power of the engine, that is, the larger the displacement, the greater the power of the engine, and vice versa. If the engine with a small displacement wants to output more power, there is only one way to "increase the throttle", while the large displacement engine needs a smaller throttle opening to achieve greater power, "small displacement and large throttle, displacement and large throttle".

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Quick facts about cars:1Turning the vehicle's accelerator pedal from the time you press it to the time it releases is called a "trip".

2.Turning the vehicle's accelerator pedal from the time it is pressed to the time it is released is called an "acceleration". 3.

A vehicle's emission control system can reduce vehicle emissions and reduce pollution. 4.Changing your vehicle's tires to a lower tire pressure can improve fuel consumption.

5.When using a car, regularly check the oil, lubricating oil, brake fluid, and coolant to extend the life of the car. 6.

Turning the vehicle's accelerator pedal from the time it is pressed to the point it is released, which is called a "deceleration". 7.A car's air filter captures pollutants in the car's exhaust, reducing pollution.

8.A car's engine requires regular oil changes to maintain engine performance. 9.

The rolling resistance of a car's tires can affect the fuel consumption of a car, so the tire pressure of the tires should be checked regularly. 10.The braking system of the car can effectively reduce the inertia of the car while driving, thereby reducing the probability of accidents.

There are many small knowledge about automobiles, which can be divided into system knowledge, common sense, maintenance knowledge, etc.

1. System knowledge.

1. The car is a non-track unmounted vehicle driven by its own power unit and has 4 or more wheels.

2. Passenger cars are mainly used for carrying passengers and their carry-on luggage and/or temporary items in terms of their design and technical characteristics, including the driver's seat, and the passenger car shall not exceed 9 seats.

3. The engine is the power device of the automobile, which is composed of 2 major mechanisms and 5 major systems: crank connecting rod mechanism, gas distribution mechanism, cooling system, fuel supply system, lubrication system, ignition system and starting system, but the diesel engine has one less ignition system than the gasoline engine.

4. The braking system of the automobile can be divided into human braking system, power braking system and servo braking system.

2. Use common sense.

1. The use of air conditioning: automobile air conditioning is mainly divided into three parts, wind direction, wind speed and temperature.

2. The use of internal circulation: internal circulation is the state of air circulation in the car, and the external air is not good to use internal circulation, and the internal circulation is used in summer.

3. Pay attention to car washing liquid: Do not rinse vehicles exposed to the sun with cold water. Vehicles that have been exposed to the sun for a long time in the summer have a high temperature on the surface of the paint. At this time, if the car is washed, the car paint is in contact with the cool water, and the heat expands and contracts, which can easily damage the car paint.

4. Automobile tires: The age of normal car tires is three to five years, even if they are usually driven less, they should be replaced in time after exceeding the age of tires.

5. About tire nails: you should always monitor the tire pressure, avoid rapid acceleration and all kinds of intense driving, if the tire pressure is abnormal, be sure to find a safe place to replace.

3. Maintenance knowledge.

1. Change the oil regularly.

The most basic maintenance of a car is to change the engine oil regularly, which lubricates and protects the engine and ensures that it can function properly.

2. Maintain the air-conditioning system.

The main condenser of the air conditioning system is that it is often contaminated with dust and is prone to corrosion over time.

It is not recommended to wait until the warning light is on to refuel, although the real fuel level can also ensure driving for a period of time, but most cars have oil level sensors to sense the amount of oil and control the exhaust, etc., too low oil level will make the sensor overheat, and the gasoline pump may also have problems.

4. Check the braking system regularly.

In addition to regular oil changes, it is also necessary to routinely check the car's braking system, including checking brake pads and brake fluid.

5. Clean up carbon deposits regularly.

Can the front and rear tires of a car be reversed?

If you use tires with symmetrical patterns, then you can cross them to reverse.

If the pattern is asymmetrical or unidirectional, then it cannot be reversed.

There are also some special models, which have different sizes of front and rear tires, so it is even more impossible to replace.