Changan GDI engine reveals all the secrets, and the strong power is justice.

Under the national policy of energy conservation and emission reduction, and the purchase tax of small-displacement engines of 1.6L or less is halved, both powerful imported or joint-venture car brands and gradually developed domestic car brands have turned their attention to "golden displacement" such as 1.5L and 1.6L..

With the increasingly fierce competition, major manufacturers have shown their trump cards and created a large number of excellent models. Today, we are going to talk about a new rookie: 1.6l6at.

What does the arrival of the new engine portend?

Yidong, as the main model of Changan sedan series, maintains excellent sales. Super high cost performance, rich configuration, fashionable appearance, comfortable driving experience and all-round safety have been deeply rooted in the hearts of the people.

The 1.6L DVVT GDI engine, which declares that power is truth, and the Aisin three-generation 6-speed automatic manual transmission used with this engine will undoubtedly raise the balance of this car to a new level, making Yidong more competitive in the market of compact cars below 100,000. Today, we focus on the power core of this car.

Combination of double swords

This 1.6-liter pure aluminum alloy independently developed by Chang ‘an has variable timing technology of intake and exhaust valves (DVVT) and GDI naturally aspirated engine. Although DVVT technology is used in engines of many domestic independent brands, in-cylinder direct injection is rarely used, because in-cylinder direct injection requires higher engine technology. So how many benefits can such a difficult-to-manufacture engine bring to consumers? Let’s break them down one by one.

First: the difference of injection mode.

The essential difference between in-cylinder direct injection and manifold injection is that the traditional engine injects oil in the intake manifold and then forms mixed gas with air, and finally enters the cylinder. In other words, in the traditional injection mode, gasoline is more likely to flow into the cylinder for combustion. In-cylinder direct injection is to directly inject fuel into the cylinder with a high-pressure nozzle and mix it with air directly, so that the oil will start to burn when it is sprayed out.

▲ In-cylinder direct injection is more uniform, with better atomization effect, stronger power and more fuel saving.

Second: the power is stronger.

As mentioned before, in the traditional injection mode, some gasoline flows into the cylinder, while in-cylinder direct injection, gasoline is directly atomized and burned in the cylinder. The understanding of the image is like when the power of two identical speedboats is fully open, one of them only puts the propeller half in the water, and the power cannot be fully exerted.

From the data point of view, it has the maximum power of 94KW (the maximum power output range is expanded from the ordinary 6000rpm to 5700-6200rpm) and the maximum torque of 168 N m. However, other domestic brands of 1.6L naturally aspirated engines are mostly 85-90KW, so no one can shake their position in China.

Maybe someone asked, what’s the difference between 90KW and 94KW? I don’t feel anything at all. Under normal circumstances, I can’t feel much difference.The low-speed power of this GDI engine is 10%-15% higher than that of the old engine, and the maximum power output can reach 80% at 1500rpm. Therefore, this engine, when you use air conditioning in summer and when going uphill, will not need a big foot throttle to start and speed up because of its small displacement and weak power. Step on the gas pedal lightly and go out easily.

Third: the fuel consumption is lower.

Traditional fuel injection will form a large number of carbon deposits in the cylinder, and more fuel will be attached to the surface of carbon deposits, which will make the fuel combustion more incomplete, forming a vicious circle and increasing fuel consumption.

Moreover, because of the technology of accurate combustion in the cylinder, the fuel can be fully burned, which greatly reduces the formation of carbon deposit.Can reduce fuel consumption by 5%. 7.2 liters and 6.8 liters per 100 kilometers, don’t underestimate the difference of 0.4 liters. For a 52-liter fuel tank, a box of oil can run more than 40 kilometers, and the fuel economy can be imagined.

Fourth: more durable.

This engine adopts all-aluminum cylinder head and cylinder block, which has better heat dissipation effect. Advanced material technology and manufacturing technology make engine parts more wear-resistant, and the direct injection method also reduces the generation of carbon deposits in the cylinder. The maintenance cost of the engine is reduced and the owner’s money and time are saved.

Fifth: A good horse with a good saddle.

Any powerful engine needs a good gearbox that "understands" it and complements it so that its power can be accurately expressed.

Let’s learn how to distinguish the "good or bad" of a gearbox first. A gearbox needs only four conditions to be "good": fuel-saving, smooth, reliable and silent. As for "bad" ….. big impact, slow response, no gear shift, high fuel consumption, loud noise, high speed and so on.

And this Aisin three-generation 6AT has good internal lubrication effect, low resistance and more fuel economy. Good shift logic, faster speed, smoother speed change, less impact and more comfortable driving. Good heat dissipation effect, high technology of parts, good coordination between parts, more durable, more reliable and more silent gearbox.

▲ Excellent design of Aisin 3rd generation 6AT gearbox.

The combination of Aisin 6AT gearbox and GDI engine in Chang ‘an will give full play to the power. With Changan’s chassis carefully adjusted for Yidong, it will definitely make driving more exciting.

What are you fighting for?

Yidong, as a family compact car, is economical and practical. With the progress of science and technology, cars are also changing with each passing day. In the increasingly fierce competition in the auto market, in order to attract customers, more luxurious designs, safety facilities and smart devices are embedded in cars. People can feel the comfort and convenience of driving.

However, some people forget the fundamentals of the car: engine, gearbox and chassis. Put more energy into the design of modeling and interior. The cost of the car is indeed limited, and the mold used for shaping and the materials used for the interior will inevitably reduce the research and development expenses of the engine, gearbox and chassis. Therefore, the chassis developed in reverse, with old engine gearbox, fashionable coat and exquisite interior, has become the best choice.

This time, the new Yidong is equipped with 6AT, a gearbox that many luxury models are equipped with, and advanced GDI in-cylinder direct injection technology is also used. This "leapfrog" configuration is really extravagant.

Of course, manufacturers have to pay a considerable price for doing so.

The high R&D cost and manufacturing cost of GDI engine, as well as the cost of Aisin gearbox, make this car with less than 100,000 yuan, and the profit is thin. In addition, the market competition in this area is fierce, and there is a slight mistake. It must be a loss of wife and a loss of soldiers.

Why did Chang ‘an "go its own way" and let Yi use such a "cross-level" configuration? This is an insistence, no matter how difficult it is, we should think of consumers. Let consumers use a car that not only has a glamorous appearance, but also has a "connotation", which is not only comfortable to drive, but also more economical.

From the manufacturer’s point of view, the development of a brand must have its own core technology and independent sustainable research and development ability, so that the products can continue to improve and have better quality. Yidong, which was launched in 2012, has been with consumers for more than 4 years, and its reputation is getting better and better, with more and more recognition.

Throughout the world, Dave, not to mention the familiar series. They are all models passed down after decades of ups and downs. They didn’t cut quality because of the financial crisis, and they didn’t stop production because of poor market sales.

The more you face the difficulties, the more you can be recognized by the market and consumers. The new escape sends such a signal: surging power is truth, and fuel saving and environmental protection is justice. This is also Chang ‘an’s determination to face market competition and the motivation to build good cars for consumers.