What is the starting gear of the truck? What gear do heavy goods vehicles use to start?

Heavy trucks have different load capacity and different road conditions, so they use more gears to adapt to achieve the best match of driving speed and power output. Light load and good road conditions, use high-speed gear, fuel-saving and fast running; If you encounter an uphill slope or lack of power when pulling a heavy load, use a low gear and drive vigorously.

It generally occurs at the beginning of the truck when there is a serious overload, if there is smoke, you need to increase the throttle, half clutch.

It is easy to turn off, there is a squeaky grinding sound, and it emits a burning smell, and the clutch slips several times in a row, which is basically the clutch plate burned and needs to be scrapped and replaced. What's more, the engine flywheel and clutch assembly may burn out at the same time.

Because the truck has a large first-gear gear ratio. This is due to the need to ensure maximum load mass to be able to get started. The adhesion of an empty vehicle is much smaller than that of a heavy vehicle.

The driving force is large when the first gear is empty, and the adhesion is small due to the light weight, which may cause the phenomenon of slipping and idling when starting in the first gear of the empty car. So whether it starts in first gear or second gear depends on the conditions of operation. In short, it is necessary to ensure sufficient adhesion.

Let the driving force not be greater than the adhesion.

Otherwise, slippage will occur.

Large trucks. The reason why there are more gears is mainly because the demand for power in trucks is much higher than that of ordinary family cars. Whether it's the weight of the car or the load of goods, it's clear that the truck needs more power to get the car up and running.

This means that the engine needs more torque to keep the truck gears running. Under normal circumstances, the truck starts in second gear, because its speed is not too high, and it can also provide relatively strong torque. This will be a little faster for the truck when it starts, after all, the truck accelerates because of its own weight.

It's very slow. <>

It takes several kilometers for a truck to accelerate from a standstill to a speed of 80,100 km/h. So the faster the acceleration, the better it is for them to cross traffic lights and change lanes. And in the way of use, trucks are also very different from family cars, trucks are mainly used to transport goods, so they must have certain economic benefits.

Whereas, family driving is more about comfort and its maintenance costs. Therefore, the truck must take into account the combustion efficiency of the internal combustion engine, and the economic speed range of the truck is generally narrow, mainly concentrated in 1500 to 2000 rpm. <>

At the same time, he also has to take into account the transmission of power, so this leads to the gear of the truck is very complicated. This is also why it is necessary to get a Class C driver's license in our country.

2 After 5 years, you will be able to continue to complete the upgrade of your driver's license. It is to be able to train the driver to be familiar with the car gear, if the car gear is not familiar, it will not only damage the truck engine, but also may lead to a lot of fuel waste. <>

Of course, the truck is not entirely for transportation, it also needs to take comfort and safety into account. The more gears a car has, the smoother it will be when upshifting and downshifting. This not only improves the comfort of the truck, but also ensures the safety of the truck driver and the cargo.

Because if the setback is more severe than the side town, it may cause the goods to shake.

In general, the gears of trucks are between 8 and 12, and some trucks even reach 15 or 16 gears. For large trucks, because the body is larger than Hui and larger, so the overall weight is also very large, plus the goods loaded by this kind of truck, the full weight can be said to be very amazing, and here it will involve a physical knowledge, the greater the weight of an object, it must have greater power when accelerating, and such a large thrust is not only the engine of the truck, but also inseparable from the gearbox to adjust the transmission ratio.

Under normal circumstances, the truck does not need to start in first gear when it is fully loaded, because the weight of the body is too heavy and the starting speed of the first gear is too slow, so the truck generally uses the second or third gear to start.

The common gears of large trucks are generally between 8 and 12 gears, because large trucks are generally the work of diesel engines, and the speed is smaller than that of gasoline engines, so large trucks will design more gears in order to maximize torque and efficiency in the speed range of driving; Dachun fiber truck 1 5 gear for the forward gear, so we can start with the first gear when starting, and the second gear can be hung when the gas pedal is raised to more than 20 yards.

Because large trucks usually carry more goods, this is to ensure that the truck is more safe; Generally, it is best to use 3 as a starting point for large cars.

Starting in first gear, the light pine orange stares at the clutch, and the speed reaches more than 10 yards, and the round orange can be shifted to 2nd gear. When the second gear is normal and above 20 yards, you can shift to the third gear. When you run in third gear and above 35 yards, you can change to fourth gear.

When the speed of 45 or more is in 4th gear, you can shift to 5th gear. For cars with more than 6th gear, one gear can be added for every 15 miles of speed increase. The engine speed is usually around 2500 rpm when changing gears, which can reduce the carbon deposit of the engine.

If the engine revs at a low speed, the vehicle will tremble when shifting gears, indicating that the engine is running at a vulgar high load. There will be damage to the vehicle. Shift gears at the same time as the clutch.

The throttle should be well matched. When shifting gears, step on the cherry blossom to the end, and don't put the gear lever on the gear lever for a long time after shifting. When changing gears, you must shift in place, and the gear must be stuck in place to push the clutch in place.

From Truck Home users.

Summary of driving tips for large trucks.

First, the characteristics of large trucks.

To drive a big car, you must first know the characteristics of the big car, the mass is large - the inertia is large; High center of gravity - large centrifugal force; The body is long - occupies a large space position; Long wheelbase - large difference between the inner wheels; Pneumatic braking-braking response is fast; The steering wheel is large and the response is small, and the car is slow; There are many gears (more than six) and the gear gap is small, in short, it is more complicated and more intense than driving a trolley.

Second, the driving skills of large trucks.

When starting, the clutch, throttle, and handbrake should be accurately coordinated, especially when the handbrake is released. The clutch node is more stable and the throttle is slightly larger, but the advantage of the big car is that the first gear start is more powerful than the small car, and the start is easier.

The gear shift should be timely, and the gear should not be delayed, especially when downshifting in advance uphill to ensure reserve power. In addition, the two-foot clutch should be used for gear shifting, and the air oil should be added to the gear reduction. Hang in low gear downhill and avoid coasting in neutral.

The turning should be turned in advance according to the curve situation, the angle should be taken appropriately for the sharp bend, and the inner wheel difference should be fully considered, that is, when the turn is large, and when the continuous bend situation permits, try to cut the bend as far as possible to reduce the influence of centrifugal force.

When braking, you can't brake continuously, pay attention to the air pressure to prevent loss of control. Because of the fast reaction of air pressure, it is necessary to practice more and master the strength.

The direction of the cart is full of circles left and right, so you have to practice pulling a lot of hands, not like a cart rubbing dishes.

Parking and reversing should fully consider the trajectory and spatial location of the vehicle.

Overtaking should be at the right time, leaving plenty of leeway, and not rushing in the direction.

3. Driving skills for large trucks with 100 meters plus and down gears.

When the gear is increased, after starting, when the car enters the normal driving route, immediately step on the accelerator pedal, and quickly increase the speed to a low speed range one gear higher than this gear, when refueling after the clutch is raised, the engine and the vehicle do not shake is just right, if the engine and the vehicle shake phenomenon, indicating that the speed is low, the speed should be increased again.

If the vehicle has a recoiling phenomenon, it means that the speed is too high, and it should be mentioned less. At this point, quickly shift the gear lever into a higher gear, then speed up again, and in the same way, shift the gear lever step by step to the highest gear.

When downshifting, if you find that there is an obstacle in front of you, if the speed of the vehicle is still fast when the vehicle is close to the convex and concave road, then you can use the brake to further reduce the speed of the vehicle until the vehicle does not appear big bumps when crossing the convex and concave road. In the process of further deceleration with the brakes, if the vehicle is about to shake, you can step on the clutch pedal, and after deceleration, the speed of the car will drop to the low end of the range of several gears, and the gear lever can be shifted into a few gears.

Problems with starting in 2nd gear: 1. Extend the semi-linkage time, hurt the clutch plate 2. Drag the gear, hurt the gearbox 3. Increase the engine load, hurt the engine 4. Extend the starting time, waste oil 5. Start slowly, waste time 6. The engine burns insufficiently and pollutes the environment.

2 and 3 gears are fine, but 2 gears are the best to save cars.

2 gears when out of stock, 1 gear when out of stock.

Empty 2nd gear starts.

1st gear is in stock.

How many gears does a big truck have? China's large trucks are mainly domestic, and they are mainly manual gears, with more than 8 gears and less than 16 gears. The multi-gear design of the truck, due to the load of the truck, a truck with four front and eight after eight can reach 18 tons, and the multi-gear design can make the truck when traveling, ensuring the smoothness and stability of the truck's power and fuel economy.

When changing gears, there will be less frustration and smoother defeat. And most of the large trucks are diesel engines. The working speed of the diesel surplus machine is low, and the multi-gear inspection and destruction position is more convenient for the control of the car.

Economy: The more gears the truck has, the more it can ensure that the engine can stay in the economic speed range at different driving speeds, thereby saving fuel and reducing unnecessary fuel consumption. @2019

Large trucks, 14 pcs.

Forward 6x2=12, reverse 1x2=2. Actually, this car has two gears. One gear has 6 forwards, one backward, and two up and down high and low gears.

For cars with many gears, the difference in the gear ratio of each gear will be smaller, and the gear change will be smoother, and the appropriate gear can be selected according to the different speeds, load and weight.