Share 9 car cold knowledge!

【 Master Bang 】 Share 9 car cold knowledge!

We are filled with all kinds of car gods, all kinds of dual-clutch, turbine and other nouns, but when it comes to specific models, it is always those few sentences: "Japanese cars save fuel", "American cars consume fuel", "German cars are stable"; These people are generally ignored, so the performance of the specific model is not to talk about the performance of the rogue, and this kind of rhetoric is also long ago to let the ear hear the cocoon. Next Master Bang said these 9 cold knowledge people know is really not many.

01 /

Vehicle speed

The strongest power of the naturally aspirated engine is actually about 4000 RPM, but most people will only step on the speed of 3000.

In the eyes of the owner, the speed of 1000-2000 represents health, 2000-3000 is somewhat radical, 3000-5000 as if the engine is about to break down, more than 5000 is unknown territory, because it has never stepped on; However, for naturally aspirated engines, the maximum torque is often more than 4000 RPM, and this speed is the fastest and most powerful vehicle.

/ 02 /

Vehicle noise

Too much driving noise? It might just take a new set of tires.

Noise is mainly composed of tire noise/wind noise and engine noise, generally speaking, wind noise will be more obvious at high speed, engine noise is not obvious when the speed is less than 2000 RPM, so in fact, the most obvious noise at low speed is tire noise.

This may be related to the tires you use are wear resistant, change a set of quiet tires may be able to solve your noise distress.

03 /

Put it in gear and watch the brakes

I can't get the automatic in P gear. I need to check the brakes.

The P gear of the automatic car does not hang into D gear, the constant speed cruise can not be used, the fuel consumption is abnormally increased, the electronic throttle alarm and so on, it may just be that the brake switch of your car is broken, so do not hang into D gear remember to see if your brake light is still bright.

/ 4 /

Fail-safe mode

In addition to high and low temperature protection, the CVT gearbox also has failure protection mode.

Failsafe mode: When the vehicle is driving in extreme conditions such as wheel slip or sudden braking, beyond the computer judgment, in order to prevent damage to the gearbox failsafe mode will be activated.

When entering this mode, the engine will automatically turn off and the speed will gradually decrease, which may lead to rear-end collision.

05 /

Vehicle speed

The speedometer says 120km/h, but in reality you're only going 115km/h.

Automobile speedometer GB15082 document stipulates that the speedometer indicates that the speed shall not be lower than the actual speed!

Therefore, car manufacturers will design the speed indicator speed set higher than the actual speed, so you 123km/h speed is really speeding? (The indicating error of some models such as Buick is quite small)

/ 6 /

The key is dead.

The one-button car key is out of power, just hold the key close to the start button.

A one-button car is dead when the key runs out of power? Have you ever gotten into the car with your keys but the meter says "No smart key detected"?

In fact, you only need to put the key in the induction position even if the key is out of power can be sensed, as for the induction position of different models the location design is different, Buick behind the handle, Volkswagen under the steering column, some cars in the armrest box, this needs you to try more.

You can't open the car door without the power? Pull out the mechanical key from your key and pry the lid of the car door, which has a keyhole in it.

07 / /

Vehicle endurance

Even if the mileage becomes 0 km, it can continue to run 20-30 km.

The mileage is only 5 kilometers, but how to do more than ten kilometers from the gas station? Do you risk driving to a gas station, or do you pull over and call for help?

In fact, even if the mileage of most models becomes 0 km, they can continue to run 20-30 km, and professional organizations have personally tested.

08 /

speedometer

In principle, the maximum speed of the speedometer can not exceed 264km/h.

GB15082 stipulates that the speedometer limit of cars produced in China cannot exceed 220% of the legal maximum speed.

That is, 120 km/h *2.2=264 km/h, so the bottom of most cars are 260km/h, even the BMW 330i M with a top speed of 250km/h.

/ 09 /

Differentiated imported vehicles

How to distinguish between imported cars and domestic cars? All frames starting with L are made in China.

Well, I wonder if these 9 trivia tips are useful to you? In fact, there are many things we need to explore, such as one-button start in the driving press what will happen? (This professional organization has also tried, long press a few seconds will turn off the fire). If you have any other unique car discoveries, why don't you email me!