After lunch, Coach Sun called the students to the school training ground, and then drove a white Santana sedan out, so that everyone gathered around to familiarize themselves with the operating parts in the car. Pen ~ fun ~ pavilion www.biquge.info

Everyone understands that learning to drive will officially start from today.

After the students saw that they were almost done, Coach Sun began to give a detailed introduction to the name, function and specific operation method of the parts in the car.

Coach Sun is worthy of being a master with rich teaching experience, and his explanation is not only orderly, but also the outline is clear, and even Niu Tiangou, who has been a teacher for so many years, has to secretly admire his teaching methods.

He first summarized the main operating parts in the car as "one 'fire', two 'rods', and three 'pedals'", which was concise and concise, and he remembered it as soon as he heard it.

Then, he introduced and demonstrated one by one, speaking softly and skillfully, because Niu Tiangou carefully "gnawed" and read the compulsory course for car drivers, the content of Coach Sun was quickly memorized:

A "fire" is an ignition device.

It started the engine of the car, and Coach Sun inserted the car key in it and demonstrated how to twist it a few times.

The second "rod" is the gear lever and brake lever.

Pulling and pushing the gear lever can change the size of the drive gear below to change the speed of the car, there are five forward gears and one reverse gear under it, Coach Sun demonstrated to pull and push it to each gear, and explained the function and fuel consumption of each gear.

Pulling the brake lever is to keep the car from slipping when parking, so the brake lever is also called the parking brake, commonly known as the "handbrake", and Coach Sun pulled it twice while introducing.

The three "pedals" are the clutch pedal, brake pedal, and accelerator pedal.

The clutch pedal is on the left and is pressed with the left foot, the brake pedal is in the middle and is pressed with the right foot, and the accelerator pedal is on the right and is also pressed with the right foot.

The brake pedal and the accelerator pedal are easy to understand, because the brake pedal brakes as soon as you step on it, and the accelerator pedal accelerates as soon as you step on it, increasing the throttle, but the most tangled thing is the clutch pedal on the far left. This is the opposite of the accelerator pedal, which is the most prone to misoperation.

Nima, this car has a brake pedal and a accelerator pedal, why should it be equipped with such a confusing and brain-consuming clutch pedal?

Coach Sun obviously knew everyone's confusion, so he focused on the clutch and clutch pedal: "The so-called clutch, as the name suggests, uses 'clutch' and 'engagement' to transmit the right amount of power to the wheels.

"When we start the engine, the engine is always spinning, the wheels are not moving, and the clutch is in the position between the engine and the wheel drivetrain (transmission).

"When we press the clutch pedal, the clutch plates are separated from the engine flywheel, the wheel drivetrain is not affected by the engine power, and the wheels do not move;

"When we release the clutch, the clutch plates are close to the engine flywheel running at high speed, and friction is created with the flywheel, which transmits power to the wheel drivetrain, and the wheels turn and the car moves.

"Therefore, the clutch can be said to be the 'switch' that transmits power between the engine and the wheel transmission system, which can not only cut off the power through the 'off', but also transmit power through the 'close'."

Seeing that the students were listening quietly and carefully, Coach Sun paused for a while, and then explained: "The clutch is divided into three working states under our operation, that is, the full linkage state of not pressing the clutch pedal, the non-linkage state of completely pressing the clutch pedal, and the semi-linkage state of half pressing the clutch pedal.

"When the vehicle is in normal driving, it is in a fully linked state, the clutch plate pressure plate is tightly squeezed on the engine flywheel, the two are like locked together, can maintain relative static friction, the friction is the largest, and the speed between the wheel transmission system shaft and the engine flywheel is the same;

"When the vehicle starts slowly and steadily, it is in a semi-linked state, and there is semi-sliding friction between the clutch plate pressure plate and the engine flywheel, and its friction is less than that of the full linkage state, which is equivalent to a soft connection, and the speed of the wheel transmission system shaft is less than the speed of the flywheel;

"When the vehicle shifts, brakes, and stops quickly, it is not in a state of linkage, and the clutch plate pressure plate is separated from the engine flywheel, and there is no contact at all, so there is no relative friction, and the power of the engine flywheel cannot be transmitted to the wheel transmission system.

"When driving, we have to operate the semi-linked state.

"It is just necessary to note that after the car is driving normally, do not continue to press the clutch pedal and let the clutch be in a semi-linked state, because of the long-term semi-sliding friction, it is easy to cause the clutch to wear out or even burn out due to excessive temperature.

Therefore, using the clutch correctly and mastering the principle of the clutch is the most basic skill that every student should master. If you can correctly understand the working principle of the clutch, the wear and tear of the car will be minimized, and the maintenance can save a lot of costs. ”

After talking about this, Coach Sun demonstrated how to step on the clutch pedal a few times, and then asked the students to try to operate it again to find the feeling of semi-linkage.

Niu Tiangou, who has been a teacher and is good at grasping the teaching content and key difficulties, understands that the content of learning to drive is to learn the operation of "one fire" (ignition device), "two rods" (gear lever and brake lever), "three pedals" (clutch pedal, brake pedal, accelerator pedal), "three pedals" is the key, and the tangled clutch pedal is the difficulty.

It seems that the operation of the clutch pedal will have to be pondered repeatedly.

Finally, Coach Sun familiarized everyone with various instruments, steering wheels, turn signal levers, wiper levers, etc.

"Let's get familiar with it today."

Seeing that the students are almost familiar with it, Coach Sun said: "After you go back, take a good look at the tutorial, familiarize yourself with the theoretical knowledge, and the students who have a car can be familiar with the various operating parts in the car in combination with the vehicle, especially the two 'rods' and three 'pedals', try to practice more with your hands and feet, and be familiar with the best degree of operation without looking at your eyes." ”

Everyone understands this principle, because when operating, the eyes should be firmly focused on the front, if you always have to lower your head to look at the joystick and pedals, it is very dangerous when driving.

"Okay, let's all disperse." After Coach Sun finished speaking, he waved his hand at everyone.

"Shall we come back tomorrow?" The beautiful young woman asked while standing in a group of students. It seems that she is a little impatient.

"Not for now."

Coach Sun smiled: "The school has arranged for you to practice here in 20 days, because the coaches will train the last batch of registered students next, and the school will notify you at that time." ”