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However, they also mentioned that most consumers will only ask the engine's displacement and power to infer whether the power is strong and the fuel consumption is low.
In fact, from a professional point of view, the performance of the engine is far more than judgments.
Why do more and more people pay attention to the "core" of automobiles?
Power "core" source
Measuring whether a person is full of energy often depends on whether his heart is strong. As a result, many people dreamed of their own future "60-year-old, 30-year-old heart."
Indeed, for biological individuals, the role of the heart is irreplaceable. On the one hand, it vomits the old, delivers blood to the lungs, discharges carbon dioxide, and puts in fresh oxygen; on the other hand, oxygen-enriched blood is pumped from the heart to the entire body, providing the nutrients the body needs and taking it away. Various wastes. A healthy heart beats at a steady, regular pace every minute, and in strenuous exercise, the heart's blood transfusion can be increased to four times as usual in a matter of seconds.
The car's engine is like the heart of the car. If the car wants to run and runs well, it cannot do without the strong support of the engine.
The conditions of use of the car are more complicated: when the city is driving, the red light stops at a green light, especially during the rush hours, the speed at which the car can maintain a speed of 50 kilometers is a miracle, and the engine is frequently started and braked. Frequent speed shifts are like a 50-meter reentry run in the heart, and there must be a strong momentary explosive force; in mountainous areas and bad roads, the engine is sometimes running at a moderate speed and sometimes running at a low speed because of changing road conditions. The state of the heart's work is not only to maintain a certain speed, but also to ensure the continuous output of power; on the highway, the engine runs at high speed, just like the heart of the marathon, it is necessary to ensure that there is a strong power output and output Persistence, but also need to save strength.
How to choose a good engine?
Good "core" selection guide
In order to get a better engine working status and fuel consumption, well-known car manufacturers have made unremitting efforts. Although the current automobile engine technology has become quite mature and stable, every effort will bring continuous improvements and surprises to a better driving life. For example, it has just won the “Top Ten Engine of 2006 in Chinaâ€. The title of the Shanghai GM LaCrosse Ecotec D-VVT 2.4L engine is one of the most outstanding members. Its unique D-VVT intake and exhaust valve double continuous variable timing system has more efficiency than currently used intake valve. The variable timing system has been greatly improved, with high torque at low revolutions, high revolutions and high power. This engine has 90% of peak torque in the low revolution region of 2400 rpm, which greatly improves daily driving. The power performance enhances engine responsiveness and saves fuel. Compared with the sedan engine, it is more powerful, more fuel-efficient, and more durable.
Strong power is preferred
Driving is most afraid of other people's assessment that it is “meat and grindâ€. In addition to being inexperienced in driving skills, engine factors cannot be ignored. A good engine can affect the overall performance of a vehicle by more than half.
Many people say that the highest realm of driving is “cars follow heart†and “human and vehicle integrationâ€. Actually, it requires the engine to be as strong as the Liangshan heroes. When it is strong, it is strong, and the car is “moving like a rabbit. Dear child."
To select a satisfactory engine, the first thing to consider is whether the engine has ample power output and whether it will be like a young heart. Driving in the city, the engine has to show a lot of energy, run smoother and give people a feeling of complete relaxation. When the throttle is depressed and the engine is powerless, it feels like there is a strong backup force to support and fully experience the driving pleasure.
Taking the Shanghai GM LaCrosse Ecotec D-VVT 2.4L engine as an example, it has a 16-valve, all-aluminum alloy manufacturing, stepping on the throttle, and can leap up and down at a flexible speed, and can deliver a maximum horsepower of 168bhp and a peak torque of 23.0kgm. You can make you busy for a day and feel the joy of driving on your way home.
Durable and durable is the key
When playing outside or running for a long time, you are afraid of a tantrum in the car. “Luo Wo†has always performed well in the urban area. However, if you go along the mountain or run at a high speed, the engine is not energized. Like a cold, the breathing is sluggish and wilting. Stagnation. Therefore, to test the performance of an engine, in addition to the explosive power of a strong instant, but also must be in a long time, after a variety of road conditions to maintain a strong power output.
Consider the LaCrosse Ecotec D-VVT 2.4L engine as a reference. On the mountain road, LaCrosse is still able to drive whatever it wants, and people do not feel it is driving a "big guy" weighing 1.6 tons. In fact, an important part of the fun of attacking bends is the cooperation of power. LaCrosse 2.4 has a wide range of engine power, and the automatic transmission responds very quickly. It is actually very fun and natural to use a D-block attack and bend. There is no fatigue or dullness, and the matching of power is quite outstanding. In addition, LaCrosse 2.4 is the first product in the domestic Buick model to adopt the manual shift lever, the lift gear is highly obedient, and the smoothness of shifting also reaches the first-class level, and there is no turbulence in front of the bend, plus the steering wheel The shift button allows you to quickly lift the hand from the disk, making it easy to use when attacking a bend.
The LaCrosse 2.4 engine still matches the 4-speed automatic transmission. In fact, the choice of transmission is also crucial for the energy of the engine, because it affects the performance of the entire transmission system. 4 The design of the front speed is reliable and durable, and as long as it is properly matched, it does not fall on the acceleration and high-speed cruise fuel economy.
Fuel economy is more important
The price of oil does not fall, and the emissions of exhaust gas pollute the environment... The economical performance of the engine is particularly important, both from an economic perspective and from an environmental perspective. No one would be willing to spend as much as 20 liters per 100 kilometers on his car, and he would be reluctant to “burn†the increasingly polluted urban air.
At present, many consumers are rumors that the US Department of fuel consumption, in fact, is largely a misunderstanding. The performance of fuel consumption is largely related to the character of the vehicle and the driving habits of the owner. In LaCrosse's case, adhering to the R&D concept of technology, environmental protection and economy, Ecotec engines have been known for their superior fuel economy and low emissions. According to the latest fuel consumption figures released by the National Development and Reform Commission, the actual combined fuel consumption of LaCrosse 2.4L is only For 9.6L/100km, this is a relatively low number for a comparable vehicle. It seems that after the introduction of the new Ecotec D-VVT 2.4 engine, the engine can indeed save more than 10%, and the impression of high fuel consumption on the general model will gradually change.
More significant strength
In order to let everyone know more about the current status of the engine level of each brand car, we can compare the characteristics of the American, German, and Japanese engines.
The biggest feature of the German engine is the backup power. This is also related to the national conditions of Germany. We know that the freeway in Germany is not limited to speed, and the design standards of highways are very high, which makes a lot of high-performance cars available. Riding on the German highway, low-speed torque is less important, and the important thing is the powerful power output at high speeds. Due to the continuous power output of the German-type engine, there is still a clear sense of acceleration at 150 or even 180 mph. For Japanese cars, 180-190 is basically extremely fast. The Japanese engine is under sufficient power. Often more emphasis on economics. However, the German engine is somewhat maddening at the low-speed torque output. It may be that the driving of the Germans is the most crazy in the world. They like high-speed starting high-speed shifts, but for Asians who are accustomed to congestion, they are even more crazy. It is biased towards low-speed torque because it will make driving in the city easier.
U.S.-based engines often focus on the application of a large number of the most advanced engine technologies in the world today, and seek to achieve balance on comprehensive indicators such as dynamic performance, ride comfort, and fuel economy. The Ecotec series engine developed by General Motors has the characteristics of balanced development of all aspects of the US-based engine. The 2.4-engine power range that LaCrosse is equipped with is wide, and the automatic transmission responds quickly. Lacrosse 1.6 tons of body, with D block offensive bend is also very fun naturally, there is no fatigue or sluggish, visible power match is quite good. The actual driving fuel consumption is about 10 to 12 liters. Under the premise that power is guaranteed, LaCrosse's fuel consumption performance is also very good. Therefore, manufacturers in different regions of different countries all have their own demands, and these appeals are all aimed at meeting the needs of the local market.
Conclusion:
People are concerned about a new car. First and foremost, the most concerned about and most wanted to know, is often “How much is its displacement?†It can be seen that the people’s attention to the engine is the highest, and the selection of cars is often based on the selection of the engine. Through the above introduction, if you choose an engine with strong power, long-term durability and fuel economy, you can often do more with less.
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