The sound of diesel-powered tank 300 is getting louder and louder, which is an "illusion"

Off-road vehicles will have diesel power, and the "stupidest" thing about Tank 300 is that it has not launched a diesel version.

Tank 300 won't be sold until the diesel version comes out!

Tank 300 even has a gasoline version of 3.0T-V6, why not a diesel version?

Wait a minute.

There are many netizens who have this view, as if they are all waiting for the tank 300 diesel version; So some real car enthusiasts are confused and ask me if I should wait, and whether the tank 300 will use the same diesel engine as the 2.4T Shanhai gun in the future. If more and more cross-country enthusiasts are entangled in this problem, the purpose of these "water army" will be achieved!

Please remember one thing: even if the diesel version of the 300 tank does come out, these people will not buy it, and they will disappear completely.

Tank 300 is not the only domestic off-road vehicle. Excellent domestic off-road vehicles include Beijing off-road vehicle BJ40 (not Beiqi Manufacturing Company which made BJ2 12) and Datong D90 Pro. Both cars have diesel power options, and the D90 Pro can be equipped with part-time four-wheel drive. BJ40 adopts Futian 2.0T diesel engine, and the power level of120kw/380n m is not bad. The 2.0T built by Great Wall Motor is120 kW/400 N m, and its 2.4T is only137 kW/480 N m, which is not much ahead of BJ40. The power of 2.0T diesel engine on D90 Pro is as high as160 kW/500 N m! The standard is 2.4T higher than the Great Wall.

Therefore, it is not that there is no diesel-powered off-road vehicle to choose from, but that the sales of diesel-powered off-road vehicles are very poor, including the early Haval H9 diesel version.

There is no doubt that the tank 300 is expected to be completed, so it is suggested that the tank 300 launch a diesel version.

Think about who the owners of off-road vehicles are.

Undoubtedly, the first premise is "rich people", at least the middle class; Because off-road vehicles are expensive, driving off-road vehicles is a sport and a kind of high-intensity car damage, so off-road vehicles are not only expensive to buy, but also need constant investment in the process of using cars; However, this is not the point. The point is that off-road vehicles need to be modified, and the prices of various modified parts are quite high.

That's why there is that joke: since I started playing cross-country, my family thought I was taking drugs.

Then the question is, what characteristics do users of mid-to high-end cars need?

Very simple, it should be:

Strong power, ideal quiet and cool design, luxurious interior, rich configuration and strong off-road ability.

Don't treat the current off-road enthusiasts as real off-road people, most of them are directed at the "social attributes" of off-road vehicles; To put it bluntly, men are for picking up girls and women are for circles. Although not absolutely, most people do.

Therefore, the power unit of the vehicle needs to bring not only low torsional explosive force, but also strong acceleration ability and low enough engine noise, which diesel engines cannot do.

The only advantage of diesel engine is fuel saving, and the rest are disadvantages.

There are two reasons for diesel engine to save fuel, one is the advantage of carbon content in diesel itself, and the other is the limit of the engine to the maximum speed.

Power = rotational speed × torque ÷ constant.

The maximum speed of gasoline engine can reach about 7000 rpm, which is the standard of ordinary scooter. The concept is that when accelerating through each forward gear, the speed can be raised to this limit, and the function of different forward gears is to amplify the torque or adjust the speed to different degrees. Therefore, the basis for determining the maximum power of the engine is not only the torque, but also the speed. The speed of diesel engine is limited to about 4000 rpm, so the power must be low under the premise of equivalent torque.

Metric horsepower = power × 1.36.

Large horsepower can accelerate fast enough and the speed is high enough, so the diesel engine with low speed limit must have low power and the acceleration performance of diesel vehicles is generally poor; You should know that the acceleration of the diesel version of Datong D90 Pro with the maximum power of 160kW is only 10 second, and it takes about 20 seconds for many diesel off-road vehicles and pickup trucks, and about 30 seconds for some old diesel pickup trucks! Even for a large-displacement Dongfeng warrior (powered by diesel), it takes 189 seconds to accelerate 100 kilometers.

Therefore, diesel vehicles have a poor sense of acceleration overtaking, and diesel-powered passenger cars can't bring an ideal sense of acceleration, so there are no other diesel-powered passenger cars on sale except off-road vehicles.

Diesel engines also have a big disadvantage, that is, loud noise! Diesel engine adopts compression ignition technology. After the diesel oil is compressed and evaporated in the cylinder, the power stroke is not ignited by the spark plug, but directly ignited by the high temperature of compressed air. When doing work, it will produce a large degree of vibration, and the high vibration intensity will make a big noise, so the diesel vehicle is not quiet enough and it is easy to produce vibration of the internal parts of the vehicle.

Therefore, early trucks and buses did not use diesel engines, and vans in the middle of last century were all gasoline engines, which was unexpected.

It was not until the oil crisis that diesel engines began to be gradually popularized, and commercial vehicles chose diesel engines only out of helplessness.

Do you still think tank 300 needs a diesel version?

It can be said that the diesel version can't sell a few sets. Those who clamor for the diesel version of the tank 300 often deliberately say so, and their expectation is nothing more than affecting the sales of the tank 300; However, off-road vehicles are niche models. In the past two years, the tank 300 has grown too fast and the market has digested too fast. Its sales are expected to drop, so don't bother.

What the off-road vehicle really needs is an electric hybrid system, because the motor has a low torsional explosive force that exceeds that of the diesel engine, a power that is higher than that of the gasoline engine, a power that is far lower than that of the gasoline engine, and a reliability and durability that far exceeds that of the gasoline and diesel engines. Therefore, what tank 300 needs is to accelerate the introduction of plug-in hybrid version, and there is no need to introduce diesel version.

Editor: Tianhe Automobile-Automotive Science Island, published by Tianhe MCN, all rights reserved.

This article is from Tianhe Automobile Science Island, written by Che Yi, and the copyright belongs to the author. Please contact the author for any form of reprint. The content only represents the author's point of view and has nothing to do with the car reform.