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Why are there still veteran drivers taxiing in neutral?
In the era of carburetor cars, car owners did not know the concept of car fuel consumption. Only after driving for a long time did they discover that if the car wants to slow down when the car is driving at high speed, the engine speed is the lowest when neutral is engaged, and the corresponding fuel injection volume of the injector is also less, so there is "neutral coasting to save fuel". ” statement. And in theory, neutral can indeed save fuel, but today's cars are all electronically injected cars, almost as opposed to carburetor cars, and slogans "Don't slide into neutral" can be seen everywhere. So since "neutral is harmful", why still Will there be any veteran drivers in neutral?
At the same speed, the lower the engine speed, the more fuel-efficient the car is. However, today's cars are all equipped with electronic injection engines, and gasoline pumps are all electric gasoline pumps. Even if it slides into neutral, fuel will be supplied automatically, which cannot save fuel very well. Moreover, long-term coasting in neutral often poses a threat to our driving safety. Don't Idle When the car is in neutral, it is equivalent to cutting off the connection between the power system and the wheels of the car. At this time, the car slides forward by its own inertia. When emergency braking is required, all braking force comes from braking triggered by the brake pedal.
At this time, the braking system is subjected to huge braking pressure in a short period of time, which may cause the braking system to fail, the braking distance to become longer, and even the risk of losing control of the car. On the contrary, when we brake in an emergency, in addition to the braking of the braking system, the engine can also help us stabilize the braking. Due to the limitation of gear speed, there is a big difference between high-speed wheel speed (fast) and engine speed (slow). In order to reach engine speed, the wheel drive wheels are forced to decelerate "harder". There is no need to rely solely on the car's braking system for braking, as is the case when coasting in neutral, before synchronizing with engine speed.
So, coasting in neutral is a taboo when driving and may pose a safety threat to us. It can indeed achieve the purpose of saving fuel, but the fuel saved is very little. If an experienced driver coasts in neutral to save fuel, then you really know nothing about cars. Veteran drivers usually coast in neutral in both road conditions. First of all, following a car in a traffic jam on a city road is the time to test your driving skills. Traffic will move forward and stop for a while, greatly affecting the driving experience. But the veteran driver's car is very smooth, and most of the time he follows the car in neutral: the car idles forward in 1st gear, predicting that the car in front will stop, immediately depresses the clutch in neutral, and then releases the accelerator.
Secondly, waiting for a red light at an intersection is a long process. Experienced drivers can almost make the green light at the intersection, that is, predict in advance, slide into neutral, and free their feet as soon as possible. For example, we are driving on the road at a speed of 40 km/h, and we are about to pass the intersection ahead. We found that traffic lights at intersections turn red after about 8 seconds. At this time, the experienced driver will choose to coast in neutral, slowly drive the car to the intersection, and then just apply the handbrake, so that he can relax his feet in advance.
In short, coasting in neutral does more harm than good, and the fuel savings are negligible. In addition, we also see many signs on the roadside such as "Neutral coasting = death", but this does not mean that you must not coast in neutral, nor should you drive on long slopes, turning sections, high speeds, etc. /[ k0/] block coasting. Conversely, at low speeds it can be very short.
Pacific Automotive Network
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