High torque How about a car with a small torque speed

Isn't a car with high torque and low rev a diesel car?

Diesel cars are more fuel-efficient and accelerate faster, but the top speed is not high, and you need to pay attention to the oil at ordinary times. Beg.

Commonly known as: low-speed high-torque engine car. It is suitable for trucks, medium and large buses, off-road vehicles, military armored vehicles, etc., which need to twist large torque;

1. In order to pursue fuel economy, the diesel engine with the characteristics of low speed and high torque is used (especially the characteristics of diesel that are not easy to use, which is more suitable for military vehicles that need to be in contact with artillery fire on the battlefield).

2. However, since the comfort (vibration, noise, emissions, etc.) of diesel engines is poor, it is also possible to achieve this purpose by design on gasoline engines for cars that pursue comfort and low-torque balance.

The valve structure of the gasoline engine is designed as an SOHC (single overhead camshaft) structure, or the cylinder is designed as a small bore and long stroke structure; All of them can achieve the purpose of obtaining large torque at low speed.

3. However, such naturally aspirated gasoline engines generally have poor high-speed performance (low horsepower, and the maximum speed cannot be increased); The solution is to still use the valve structure of DOHC (double overhead camshaft), or the design of high-speed high-horsepower cylinders with large bore and short stroke; Turbocharging was used instead to compensate for the lack of torque at low revs.

Torque is the force that causes an object to rotate. The torque of a car is an important indicator to measure the engine of a car.

1. Automobile torque is the torque output by the engine from the end of the crankshaft. Under the condition of fixed power, it is inversely proportional to the engine speed, the faster the speed, the smaller the torque, and vice versa, reflecting the load capacity of the car within a certain range.

Second, the greater the engine torque, the greater the force acting on the wheels through the gearbox and transmission shaft. To put it simply, the greater the engine torque, the greater the acceleration of the car when it starts, which means that the greater the torque of the car, the faster the car starts.

Cars with high torque are comparatively better. The more torque the vehicle has, the better, and with the same displacement, the more torque the engine is better. For family cars, the greater the torque, the better the acceleration; For off-road vehicles, the greater the torque, the greater the climbing; In the case of trucks, the greater the torque, the greater the weight of the truck.

Torque Calculation Method:At each speed there is a relative torque value, which is divided by a length to obtain the force data. For example, if a litre engine is about the maximum torque that can be exerted, if it is directly connected to a 185 60R14 tyre, with a radius of about 41 cm, the propulsion force exerted by the wheels is 15 (in fact, the kilogram is not a unit of force, but a unit of mass, which must be multiplied by gravitational acceleration to be the standard unit of force is Newton).

By connecting gears of different sizes, the speed of rotation can be reduced while the torque can be amplified. Since the circumferential ratio of the gear is the radius ratio, when the power is transmitted from the pinion to the large gear, the ratio of the reduction of the speed of rotation and the multiple of torque amplification are exactly equal to the ratio of the number of teeth of the two gears, which is the so-called gear ratio.

Torque is the force that causes an object to turn. Engine torque is the torque that the engine outputs from the crankshaft end. Under the condition of fixed power, it is inversely proportional to the engine speed, the faster the speed, the smaller the torque, and vice versa, it reflects the load capacity of the car within a certain range.

In some situations, the car is truly reflected, such as when starting or driving in the mountains, and the higher the torque, the better the car will react. Compared with the same type of engine car, the larger the torque output, the greater the carrying capacity, the better the acceleration performance, the stronger the climbing ability, the fewer the number of gear shifts, and the relative reduction of wear and tear on the car. Especially when the car starts at zero speed, it shows the superiority of the high torque and the fast lifting speed.

The torque of the engine is expressed as Nm (. As with power, the maximum output torque of the engine is usually indicated along with the speed per minute (r min). The maximum torque generally occurs in the range of medium and low engine speeds, and as the speed increases, the torque decreases.

Torque is one of the main indicators of a car's engine, as is power, and it is reflected in the performance of the car, including acceleration, climbing ability, and suspension. Its precise definition is: the reciprocating motion of the piston in the cylinder, which does a certain amount of work at a time, and its unit is Newton.

The work done at each unit distance is torque. Yes, torque is an important criterion to measure the quality of a car's engine, and the size of a car's torque is directly proportional to the power of the engine. To give a layman's example, for example, like when a human body is in motion, power is like the body's durability, and torque is the body's explosive force.

For family cars, the greater the torque, the better the acceleration; For off-road vehicles, the greater the torque, the greater the climbing; In the case of trucks, the greater the torque, the greater the weight of the truck. With the same displacement, the more torque the better the engine. When driving, you will feel that the car can do whatever you want, and you can accelerate if you want to, and the "back feeling" is very good.

Now there is an important data for evaluating a car, which is the acceleration time of the car from 0 to 100 km/h. And this acceleration time depends on the torque of the car's engine. Generally speaking, the highest torque index can be reached at the speed of the car at 2000-4000 minutes, which means that the engine technology of this car is better and the strength is good.

Some cars only reach the maximum torque index at around 5000 rpm, which shows that "power" is not the car's forte.

You can take a look at the HDP program, which can increase a lot of torque and horsepower after power upgrades, and also provide insurance, professional and reassuring.

There will be many uncontrollable accidents when the owner drives the vehicle to participate in road traffic, and if the car damage insurance is not taken, it will cause unexpected losses to the car owner. If the owner does not have car damage insurance, the consequences will be as follows.

1. When the vehicle collides, the traffic police determine that the owner is the main responsibility, and the loss of the vehicle is borne by the owner himself, which will cause great economic losses.

2. When the vehicle is stolen, the direct loss incurred shall be borne by the owner due to the lack of damage insurance.

3. In the event of natural disasters such as hail, typhoon, flood and other natural disasters or accidents such as falling objects, scrapes, spontaneous combustion caused by vehicle damage, the loss caused by the owner shall be borne by himself.

In the event of an accident without car damage insurance, the full cost of repairing the vehicle will be borne by the owner, which will bring huge economic pressure to the owner and cause irreparable consequences to himself and his family. Therefore, it is recommended to purchase vehicle damage insurance as soon as possible after purchasing a vehicle to pass on the risk of accident to the insurance company.

Hello, it is a pleasure to serve you and give you the following answers: The model with low maximum torque speed refers to the situation that the maximum torque speed is low due to engine failure. Reason:

1. The internal wear of the engine is serious, resulting in a decrease in mechanical efficiency and torque; 2. Engine lubrication system failure, such as oil pump, filter, oil pipeline blockage, etc., reduces mechanical efficiency; 3. Engine fuel system failure, such as fuel injector and oil pipe blockage, reduces engine combustion efficiency and low maximum torque speed; 4. Improper control of the engine system, such as poor EFI and catalytic converter, reduces the combustion efficiency of the engine and the maximum torque speed is low; 5. Improper control of the engine system, such as improper control of the cylinder pressure regulator, makes the maximum torque speed of the engine low. Solution: 1. Check the internal wear of the engine, if the wear is serious, the engine can be replaced; 2. Check the engine lubrication system, such as oil pump, filter, and oil pipeline, and replace it if it is damaged; 3. Check the engine fuel system, such as fuel injectors and oil pipes, if there is damage, it can be replaced; 4. Check the engine system control, such as EFI and catalytic converter, if it is bad, it can be replaced; 5. Check the engine system control, such as the cylinder pressure regulator, if it is abnormal, it can be quietly replaced.

Steps: 1. Be familiar with the structure of the engine system, understand the internal dust structure and control system of the engine; 2. Check the internal wear and tear of the engine, if.

When buying a car, have you ever heard someone say that it is best to look at the torque of the car's engine, because it determines how fast the car accelerates? Some manufacturers will say in the promotion that this car can burst out of maximum torque at 1800 rpm. Are these words correct?

What does torque mean?

Torque is a special kind of torque that makes an object turn, while engine torque refers to the torque output at the end of the engine's crankshaft, which can reflect the load capacity of a vehicle. Torque is measured in Newton-meters (Nm) or kilogram-meters (kgm).

Is the torque of the car small or good?

Torque is an important parameter for engine performance. The greater the torque, the greater the "force" of the engine output, the faster the crankshaft speed changes, and the better the car's climbing ability, starting speed, and acceleration.

The simplest relationship between power and torque is that there is a trade-off between torque and speed while the power is constant, that is, the higher the speed, the less torque. Of course, in practice, power is not constant.

But "power determines the maximum speed, torque determines the acceleration time", the same car, why is the diesel version with high torque accelerating far less than the gasoline version with much less torque?

It is important to know that the engine torque is transmitted to the wheels through changes in the transmission mechanism such as the transmission and the final reducer, and it is the wheel torque that really determines the acceleration force of the car. From physics, we know that p (power) = f (torque on the wheel) x v (speed). That is, when the vehicle is at a certain speed, the torque on the wheels is determined by the power on the wheels, and the power hardly changes due to the change in the gear ratio.

If the loss of the transmission machinery is ignored, the power on the wheels can be equal to the power of the engine. The so-called constant, whether it is the maximum speed or the acceleration time, is actually determined by the maximum power.

Many turbocharged cars can burst out of maximum torque in a very low rev range, like the 1800 rpm mentioned earlier. But during the actual acceleration, the engine speed rises after reaching 1800 rpm. According to the theory of "torque determines acceleration time", why do you need to downshift to make the revs climb when the maximum torque has already been reached at 1800 rpm?

At the end of the day, acceleration is driven by power. You know, power is equivalent to torque multiplied by speed. That's when you need to climb the rpm to get more power and therefore more torque on the wheels.

The most practical example is the British Finiti Q50 and Q50L, which can be considered almost the same car except for a slight difference in wheelbase. The former is equipped with a VQ series V6 engine with a maximum power of 258kW and maximum torque; The latter is equipped with a turbocharged engine with a maximum power of 155kw and a maximum torque, and you will find that the power difference between the two sets is more than 100kw, and the torque is almost the same, which is ultimately reflected in the difference in acceleration performance. More than two seconds faster.

To put it simply, it is the power that the engine can emit on its own every time it turns. The greater the torque, the stronger the engine.

What does torque mean, when we look at the car in the 4S store, the sales consultant in the store will always introduce the relevant parameters of the model to us, such as the BMW 5 Series ( Check the transaction price |The 2019 530LI XDRIVE M sports package engine has a maximum horsepower of 252 hp, a maximum power of 185kW, a maximum torque of 350 Nm, and is equipped with an 8-speed automatic manual transmission, with a maximum speed of 250 km/h, etc., the sales consultant hopes that this number can convince you to buy, but do you understand?

For these power ginseng shirts good forest number, horsepower, power and speed we can understand, the larger the value, the better, but what does torque mean, is the torque of the car sock engine better or smaller?

Torque is a special moment that makes an object rotate, and the torque of the engine refers to the torque output by the engine from the end of the crankshaft, which is reflected in the performance of the car, including acceleration, climbing ability, and suspension. Under the condition of a certain power, the torque is inversely proportional to the engine speed, the faster the speed, the smaller the torque, and the slower the speed, the greater the torque, which reflects the load capacity of the car within a certain range. The external torque is called torque or external force moment, and the internal torque is called internal force moment or torque.

So is it better to have more or less torque in a car engine? In fact, for family cars, the greater the engine torque, the better the acceleration; For off-road vehicles, the greater the engine torque, the greater the climbing; In the case of trucks, the greater the engine torque, the greater the weight of the car. So, the more torque the car has, the better!

The maximum torque force of the automobile engine is related to the design of the engine's air intake system, fuel supply system and ignition system.

For example, the BMW 5 Series 2019 530Li Xdrive M Sport Package Edition, when its engine reaches a maximum power of 185kW, it can reach a maximum of 252 horsepower, and the engine speed is also the highest 5200-6500, but the torque is not the maximum; When the engine speed is between 2500-3500, it can produce the maximum torque, at this time the engine power, speed, horsepower do not reach the maximum, but it is the strongest acceleration performance of the vehicle. @2019