Which way is more fuel efficient, slamming on the accelerator or driving at a constant speed?

<> let me talk about my own point of view: as a qualified driver, the vehicle will not slam on the accelerator and brake in driving, because slamming on the accelerator increases the fuel intake of the engine, and the engine will not quickly increase the speed and increase the driving speed, and then step on the accelerator and lift the accelerator sharply, so that the engine speed is up and down, so that the speed of the vehicle is also high and low when driving, so that driving the vehicle is not only to increase fuel consumption but also to damage the vehicle, but also to consume more fuel.

When driving a vehicle, we should put safety first, not be impatient, and drive safely at a constant speed, so that driving the vehicle can not only run at speed, but also save fuel, and at the same time play a great role in the protection of the vehicle, so slamming on the accelerator and driving at a constant speed compared, I think it is more fuel-efficient to step on the accelerator, and driving at a constant speed is both fuel-efficient and safe.

You ask, which is more fuel-intensive, pressing the throttle or driving at a constant speed? Let me take care of your question. I got my driver's license in '93 and I'm also a car mechanic with a Class 4 maintenance license.

So according to my own practice and my understanding of the automotive industry, I can tell you very responsibly that the key factors for whether the car saves fuel are mainly in these two aspects?

The first is your road conditions, and your body weight! The second is that it has to do with your understanding of your car's performance and your operating experience!

So now that we know the two reasons for fuel saving, then I will analyze which of the two reasons for fuel saving is more fuel-efficient, which is more fuel-efficient, which is slamming on the accelerator or driving at a constant speed?

Regardless of whether the car is loaded or no-load start, it is necessary to judge the depth of the accelerator according to the force sound of the car engine, hang the start of the car, and then gradually speed up, and properly step on the accelerator step by step, so as to achieve the effect of speeding up the car. In this way, it can play a fuel-saving role, if you are suddenly in every gear, you are not fatal to step on the gas, then this is a wrong way to operate, is quite fuel-guzzling!

The so-called constant speed driving is a fuel-saving operation method, not that you have a constant speed, you must save fuel, the constant speed should also be at the economic speed of the car down to a constant speed, then you can save fuel! Let's hit a scale! Some cars have an economic speed of 80 to 90 yards, and some of them are between 90 and 100 yards, and you have to raise the speed to this yardage to drive at a constant speed, so that you can get a good economical fuel-saving result, and any driving higher than this economic speed will not be fuel-efficient.

You can understand this when I explain it this way, right?

Therefore, in order for the car to be economical and fuel-efficient, it is necessary to operate correctly and maintain a good speed segment, so that you can enjoy the economical results!

It must be more fuel-efficient to drive at a constant speed, and the power of the car is fixed, which can be burned more fully and is relatively more fuel-efficient.

Driving at a constant speed is more fuel-efficient. Pressing on the accelerator will make the instantaneous fuel consumption of the engine reach a very high level, and will also cause incomplete combustion of gasoline, which greatly increases the amount of fuel, in addition, there are road conditions and signal lights on the road, and stepping on the accelerator also means that you need to brake sharply, which not only increases fuel consumption, but also brings a lot of safety hazards to the road.

This must be a constant speed, you step on the accelerator, the oil is up, but your engine has to slowly improve, in the long run, it is not good for the engine.

Is the fuel consumption of the car too high? The veteran driver teaches you the most practical tricks, and you can save a lot of gas money in a month.

The key to fuel saving is the transmission efficiency and the sail carrying efficiency of the clutch combination, and the overall heating of the clutch plate should be reduced as much as possible. Clutch gearbox.

Heating up means that the engine is doing useless work, and the power is converted into internal energy, and there is no efficient displacement of the car. Manual transmission.

For example, if you step on the accelerator lightly, it means that the clutch should be released slowly, otherwise it is easy to stall, but so slow, the starting time of the car is longer, the friction time of the clutch plate is longer, but the pressure is small, and it cannot be said that the heat accumulated in the overall process is small. Press the throttle hard, the clutch release time can be shorter, and the car accelerates.

Also large, the clutch slides and rubs under high pressure, heats up quickly, and even burns out. It can't be simply said that it costs oil.

In addition, the speed of starting does not affect the final fuel consumption, and the more brakes are pressed is the real enemy of fuel consumption.

Different cars have different engine conditions, and the revs at the maximum torque platform are usually the most efficient, i.e., the most efficient acceleration. It's not that the sooner you reach cruising speed, the more fuel-efficient you are, it's that you reach cruising speed at maximum efficiency. But accelerate fast or slow to save that little bit of fuel, you can brake more than this fuel consumption believe it or not?

The engine handles chemical energy by doing work.

Converted to kinetic energy. The kinetic energy of a moving vehicle is converted from engine burning, and the engine efficiency is one or two percentage points worse.

Not much impact. But the brakes are to burn off the oil, and then through the brake pads.

The friction with the brake disc is converted into heat energy and dissipated ineffectively. So the less braking there is during driving, the less energy is consumed; The higher the proportion of time spent cruising, the higher the fuel efficiency; The more kinetic energy that can be effectively converted into fuel, the more efficient it will be.

Normal and efficient traffic should be to quickly accelerate to the speed limit of the belt for safe driving on the approaching road section, and then maintain the cruise, adopt a predictive driving style, slow down at the traffic light or intersection by reducing the accelerator, and try to avoid sudden braking.

You should press the accelerator lightly when starting when driving, because starting with the accelerator can save fuel. It's more fuel-efficient to press the throttle lightly, because I do it a lot.

Starting by car, Tan Chang is of course stepping on the oil bureau to serve the door more fuel-efficient.

Whenever you press the throttle, it's a fuel-guzzling situation.

Novices will slam on the oil tung Zhengmen when driving, because it is not easy to turn off.

You should press the gas pedal lightly. When stepping on the accelerator, you must pay attention to the strength and pay attention to the shoes you wear.

I think it should be a light step on the throttle, as it will be more fuel-efficient and it won't hurt the engine.

I think of course it's better to press the throttle lightly, so that not only does it not hurt the engine, but it also saves more fuel.

To understand this problem, we must first understand the fuel control mechanism of the EFI engine printer, as an EFI engine, in order to maintain normal and efficient combustion, generally speaking, the air-fuel ratio of the mixture is controlled at: about 1, that is to say, the combustion gram air sprays 1 gram of gasoline, at this time, the combustion efficiency is the most high, the engine fuel consumption is the lowest, and the conversion efficiency of the three-way catalytic converter is the highest, in order to achieve this control purpose, the engine has a total of two control mechanisms: engine closed-loop control and engine open-loop control.

To put it simply, it is through the air flow sensor on the engine, the intake pressure sensor detects the intake volume, the ECU calculates and controls the injection pulse width of the fuel injector according to the air intake, so that the mixture in the engine is burned, and then through the oxygen sensor integrated in the exhaust end, the oxygen content in the exhaust gas after combustion is monitored, and the oxygen content is fine-tuned and corrected through the amount of oxygen content, so that it is maintained as much as possible at: about 1, and this process is automatic.

However, the engine can not always be in the closed-loop control, in the engine low water temperature, heavy load rapid acceleration, deceleration and oil cut-off, idle speed and other desperate conditions, at this time it is necessary to intensify the injection, so that the engine air-fuel ratio is maintained at 12-13:1, such a design is to improve the output power of the engine, so at this time it is impossible to correct by the oxygen sensor, can only be solidified in the engine ECU pre-set injection volume to control the injection pulse width. <>

Because the engine is under a large load when the throttle is slammed, it can not be controlled by closed-loop at this time, and can only be controlled by open-loop control, that is, the pulse width can be controlled by the pre-designed fuel injection amount, but due to the inconsistency of the environment in which the engine is located, the air pressure is inconsistent, the degree of carbon deposition in the throttle is inconsistent, and the degree of carbon deposition in the intake manifold is inconsistent, these factors may affect the actual intake pressure, that is to say, there will be a theoretical deviation value, which will lead to a deviation in the control of the engine air-fuel ratio, an increase in carbon deposition, and an increase in fuel consumption.

Driving at a constant speed, is because the best efficiency of the engine is about 1500 3000 per hour in the process of driving at a constant speed, so that the vehicle is well controlled, the engine will not stagnate the situation, the main form of fuel consumption is the frequent use of stove brakes.

Pressing the throttle is more fuel-intensive, because pressing the throttle will cause a lot of wasted energy, so it is more fuel-intensive.

Introduction: In life, people who drive a lot have the experience of slamming on the accelerator and driving at a constant speed. When the vehicle is driving at a constant speed, the power output of the engine and the resistance of the ground reach a balanced state, and there is no power for rapid acceleration.

Therefore, driving at a constant speed will be more fuel-efficient, and stepping on the accelerator will be more fuel-efficient, which is also a topic I want to share today. <>

1. Which is more fuel-intensive, slamming on the accelerator or driving at a constant speed?

When people slam on the accelerator, the engine will receive the signal from the accelerator pedal, and the driver needs to speed up, which will volatilize a strong gasoline smell, which will also make the engine more powerful. And in the process of slamming the accelerator, if it is an automatic transmission, the engine will control the transmission to downshift, and accelerate the engine to get more power. The heavier the fuel in the second ball**, the more gasoline will be consumed.

When people slam on the accelerator in the process, it will control the amount of fuel injection and improve the power of the engine, for some older models, if a slamming on the accelerator will cause smoke in the exhaust pipe, and will cause the gasoline in the cylinder, can not be fully burned, it is very fuel-intensive. <>

2. Conclusion. If you are driving in a crowded urban area, coupled with frequent waiting at traffic lights, there are many cases of slowing down or accelerating. In order to correct the high-torque gearbox that is trapped in the dust, it will continue to downshift, at this time, it is necessary to increase the throttle to improve the power of the engine and improve the driving speed of the vehicle.

This operation will also increase the fuel consumption of the car, so slamming on the accelerator is very fuel-intensive. Moreover, in the process of driving at a constant speed, the speed of the engine is also relatively stable, and the vehicle also has a good inertia, which can make the vehicle continue to move forward at a stable speed, so the uniform speed driving will be more energy-saving for the car, and the driving mode of stepping on the accelerator will be more fuel-efficient. <>

It is even more difficult to step on the accelerator, because when you step on the accelerator, the engine speed will suddenly become very high, increasing fuel consumption from the bright corner, and the engine will also think that we need to accelerate, so it will spray a lot of gasoline to increase the power.

Driving at a constant speed is more fuel-intensive, because maintaining a speed for a long time requires a lot of fuel to maintain, which is a very uniform fuel consumption.

Pressing the accelerator throttle is more fuel-intensive, because it is easy to cause a certain impact, and the damage of the engine is also relatively high.

It should be that pressing the accelerator throttle will cause the gasoline in the cylinder to burn enough, so it is more fuel-efficient.

There is also an indirect factor in slamming on the accelerator, which is braking more often. Because the speed changes so quickly, it's hard to be forward-looking about the road conditions and distances, which means you need to apply the brakes frequently. The essence of braking is to convert the kinetic energy of the car into the heat energy of the friction between the brake disc and the brake pad.

According to the principle of conservation of energy, the kinetic energy of the car is generated by burning oil, so braking is equivalent to wasting the chemical energy of the fuel into the thermal energy of the braking system. However, driving at a constant speed or with little speed change does not have much kinetic energy wasted by braking, so pressing the accelerator pedal usually means more fuel consumption than constant speed.

Aside from objective factors such as road conditions, vehicle weight, and powertrain technology, from the perspective of driving habits, under the premise of ensuring safety, through predictive driving, as little as possible to step on the brakes, and use the accelerator pedal to control the speed of the vehicle (including deceleration), so that the car can be driven fast and fuel-efficient, rather than only relying on turtle speed (such as driving 66km h on the highway) to save fuel.

Starting with a big foot on the throttle doesn't have much impact on fuel consumption. Starting with a big foot throttle, the instantaneous fuel consumption is indeed high, but the acceleration time to the predetermined speed is shorter. For example:

Cruising at a speed of 60 km/h in urban areas is generally carried out. Starting with a big foot throttle to 60 km/h, it only takes a few seconds. The slow acceleration to 60 km/h takes about 10 seconds.

In addition, we all know that driving at a constant speed is the most fuel-efficient, as long as there is an acceleration action, the instantaneous fuel consumption is not low. Therefore, the difference between fast acceleration time and slow acceleration time is not large. Therefore, the acceleration of the throttle and the slow acceleration of the big foot have little effect on fuel consumption.

The biggest impact on fuel consumption is braking too often. This is the biggest difference between an old driver and a newbie.

There are two main tips for fuel saving: 1. Try to make the engine work in the best efficiency speed range, generally 1500 3000 rpm. 2. It is not important to speed up, the important thing is to maintain a constant speed as much as possible after the speed is up, brake as little as possible, especially avoid sudden braking, and use the throttle to control the speed.

In addition, if it is turbocharged, the difference in fuel consumption is very large. The relative impact of small displacement self-priming is much smaller. It doesn't matter, either the driving is too gentle, or the so-called slamming on the accelerator and stepping on it less than halfway, or a small-displacement self-priming engine.

Take automatic transmission as an example, step on it deeply, the actual engine does the work of the throttle, but if you slam the throttle and release it, the actual energy goes to stir the gearbox, and the effect of speeding up is not achieved in a short time. So it costs oil, and of course stepping on it all the way is another. To put it simply, if you want to drive fiercely, you can step on it violently, and if you want to drive normally, you must save fuel if you step on it at a constant speed!