[car home Engine Disassembly] It’s human nature to like new things, and you won’t miss an important new car like brand-new (|). But I’m sorry, the new car hasn’t come on the market yet, and even the test drive report hasn’t been seen yet, but it doesn’t matter. Let’s take a look at the new 1.5T GDI engine on the new GS5 first.

● Basic information of engine

　　We noticed that the cylinder diameter/stroke ratio of GAC, a brand-new 1.5T GDI engine, has become smaller. This change of long stroke is helpful to improve the engine torque and make the engine respond better at low speed.

　　However, by comparing the power parameters of the three engines in the above table, we can intuitively see that the same 1.5T engine has different tuning and the maximum power/torque is different. Take the maximum horsepower as follows: Honda 177Ps＞ > Chuanqi 171Ps＞ > Great Wall 169Ps, but the maximum torque is reversed: Great Wall 285N·m＞ > Chuanqi 265ps. Chuanqi’s self-positioning in this "challenge" is quite clear. The setting of power parameters is not blindly adjusted upwards, but on the premise of ensuring power and torque, the output speed of maximum power is lowered and the output speed range of peak torque is widened.

　　Of course, Chuanqi 1.5T GDI engine, as one of the "three big parts" of the whole vehicle, is an important factor that many consumers consider before buying a car. This disassembly is more to help consumers clarify the advantages and disadvantages of Chuguangqi 1.5T GDI engine. AB: What is the difference (highlight) between Chuanqi GS5 1.5TG DI and GS4 1.5T engine in 2019? What gains can these highlights bring?

● What are the highlights of GAC’s 1.5T GDI compared with the previous 1.5T?

Highlight 1: change from manifold injection to in-cylinder direct injection

　　First of all, the biggest difference between this 1.5T GDI and GS4 1.5T engine lies in its name-GDI (in-cylinder direct injection). The most direct benefit of changing the fuel injection system from manifold injection to in-cylinder direct injection is that the engine power performance is improved and the harmful gases in the exhaust gas are relatively reduced. Moreover, we know that the first-tier cities in China will soon implement the more stringent national six emission standards. As a car company, GAC must be ahead of the policy, so this engine adopts in-cylinder direct injection technology to achieve the national six emission standards.

　　It is worth mentioning that "National VI" refers to a national policy standard for automobile exhaust emission. After the implementation of the "National VI" emission standard, it will be divided into two stages: "National VI A" and "National VI B", which will be implemented on July 1, 2020 and July 1, 2023 respectively. In some emission standards, "National VI B" is more than twice as strict as "National VI A" )

　　It is worth mentioning that with the help of turbocharger, a higher compression ratio means that the engine is more efficient, can improve more power performance, and saves more fuel, etc. After all, the working feature of direct injection engine is to directly inject fuel into the cylinder, and use the air flow in the cylinder and the fuel on the piston surface to achieve better atomization effect.

　　Direct injection engine has a good performance in working uniformity and performance under full load, and even the problem of working instability of cold car has been significantly improved. Of course, things are two-sided. While the engine enjoys the power improvement brought by high compression ratio, it is also a test for the fixation of high-pressure fuel rail and the fuel pump pressure of the fuel supply system.

　　The "dadada" sound of direct injection engine during fuel injection has always been a headache for engine NVH engineers. We can see their solutions on GAC 1.5T GDI this time:

　　When the engine is running in the compression stroke, the pressure in the cylinder is very large. For in-cylinder direct injection engines, ordinary fuel pumps can’t meet the demand. Another important feature of in-cylinder direct injection engine is that the fuel supply pressure of fuel pump is very high, so that gasoline can be effectively injected into the high-pressure combustion chamber.

　　Because of the combustion characteristics of gasoline, the compression ratio of ordinary engines can’t be designed too high, otherwise it is easy to knock, so most direct injection engines will divide the fuel injection process into two stages, that is, two injections. The GAC 1.5T GDI engine made a small breakthrough in fuel injection-The strategy of "three injections per cycle" is adopted under the specific working condition of "high load and low speed"(It can be understood that the fuel is injected three times per cycle only when the vehicle starts, and it is injected twice in other working conditions): The first-stage pre-injection (which occurs in the intake stroke and the crank angle is about 360°~180°CA) can take away a lot of heat in the cylinder under the action of gasoline volatilization, and reduce the cylinder temperature, so as to achieve a lower ignition angle, and to effectively suppress the probability of knocking and ensure stable combustion. The second and third main fuel injection (which occurs at the end of compression stroke and before power stroke, and the crank angle is about 0°CA) can bring higher exhaust temperature and accelerate the light-off of three-way catalyst.The advantage isTo achieve a rapid start, reduce engine emissions, meet the national six B emission standards, and reduce fuel consumption.

Highlight 2: Switch to exhaust gas turbocharger with lower inertia.

　　Although turbocharging technology is not a brand-new technology, it is the mainstream development direction to apply turbocharging technology to small displacement engines. Thanks to the ingenious design of turbine blades, the low inertia exhaust gas turbocharger provided by Borgwarner can take into account both high speed and high power and low speed and high torque.

Highlight 3: The three-way catalytic converter has added more precious metals.

　　Engineers have made a lot of efforts to purify the exhaust gas in order to make the exhaust gas from the 1.5T GDI engine meet the national sixth B emission regulations. The biggest highlight is the adoption of a brand-new three-way catalytic converter and the addition of more precious metals in the catalytic converter, thus reducing the light-off temperature to 270℃. What is the concept of 270℃? Let me give you an example for your reference: the light-off temperature of the three-way catalytic converter in the general national standard is 400℃, and the difference between them is 130℃.

　　The author jokingly said here: the exhaust gas discharged by an engine that can meet the national six B emission regulations should be cleaner than the air in many cities, right? Is that engine like a walking "air purifier"?

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Changan Auchan X5 design is dynamic and fashionable. The front face adopts a large-area air intake grille design, and the sharp chrome trim and black grid match, showing a strong sporty atmosphere. The LED headlights on both sides of the front of the car are sharp and integrated with the front grille, making the overall style more harmonious and unified. The body lines are smooth, and the waistline extends from the front to the rear, creating a dynamic visual effect. On the whole, the design of Changan Auchan X5 is both fashionable and powerful.

Changan Auchan X5 has a body size of 4490*1860*1580mm, a wheelbase of 2710mm, a front wheel track of 1580mm and a rear wheel track of 1595mm. The body lines are smooth and dynamic, and the tyre size is 225/50 R18. The wheels are fashionable and dynamic.

For the interior, Changan Auchan X5 adopts a simple and fashionable design style. The center console is equipped with a 10.25-inch touch screen and supports USB interface, so that entertainment and navigation functions are available. The steering wheel is made of leather, which provides better grip and comfort, and supports manual adjustment up and down to meet the driving needs of different drivers. In terms of seats, the main driver’s seat supports front and rear adjustment, backrest adjustment and height adjustment, while the co-pilot’s seat also supports front and rear and backrest adjustment. The rear seats can be laid down in proportion, further enhancing the flexibility of storage space. The seat material is a mix of leather and fabric, which is both comfortable and durable.

Changan Auchan X5 is equipped with a 1.5T L4 engine, with a maximum power of 138kW and a maximum torque of 300N m. With the 7-speed wet dual-clutch gearbox, it provides excellent power performance and smooth shifting experience.

To sum up, car home car owners have a very positive evaluation of Changan Auchan X5. He praised the sports design of the car, thinking that it is not only cheap, but also has a unique personality and design sense. In addition, he also emphasized that the chassis of this car has excellent training and excellent handling performance, making the driving experience both comfortable and sporty. The owner also affirmed the power and face value of Changan Auchan X5, and thought that these aspects were excellent. The owner hopes that this car can continue to maintain its excellent performance and accompany itself for a long time.

Ashton Chen, a name full of childhood memories, was once a little star in the eyes of the public. He grew up with a generation as a child star with great recognition in his childhood. However, with the passage of time, his life track has changed greatly. Today, we will discuss Ashton Chen’s early experience, ups and downs of his career, happiness of his family life, and how he changed from a child star to a successful businessman.

Early experience: how far your dreams are, how close your efforts are.

Ashton Chen, formerly known as Ashton Chen, was born in Guangdong Province. His father is a martial arts coach who taught him the concept of martial arts from an early age. At the age of five, Ashton Chen began to receive strict martial arts training, which laid a solid foundation for his later acting career. In 2000, he was well known to the audience for starring in the movie Kung Fu Kid. His smart posture and handsome appearance in the film made him quickly popular and became one of the most popular child stars.

With the increase of his reputation, Ashton Chen has participated in many film and television works one after another, and accumulated a large number of fans and popularity. The audience watched him grow from a young boy to a handsome boy on the screen. However, behind the glamour, it was his hard work and constant climbing.

Career ups and downs and turning points

In 2010, Ashton Chen and the popular actress He Jie became attached to each other because of their cooperation, and started a vigorous "sister-brother love". At that time, their sweet love became the focus of public attention. However, with the passage of time, this relationship gradually showed cracks. In 2011, the news of their breakup troubled the entertainment circle. He Jie inadvertently revealed in the program: "I always like mature boys." This has changed the external evaluation of Ashton Chen, from being regarded as a fledgling young man to the image of a "little boy who doesn’t grow up".

Despite the ups and downs of this relationship, Ashton Chen’s career was not hit hard at first, but the long-term reduced exposure and huge psychological pressure forced him to gradually fade out of public view under the double attack of his career and life. The number of former films has been reduced one after another, and it has receded like a flood. After entering 2015, Ashton Chen’s appearance can almost be described as "rare". The memory of the public is still stuck in his lovely and innocent smile, but it is difficult to capture his movements.

A new starting point: the establishment of a business empire

However, Ashton Chen did not remain silent. His father became his important support and encouraged him to return to the mainstream of life. He not only continued to work hard under the influence of his family, but also launched a new attempt in the business field. With keen insight into the market, Ashton Chen has gradually established diversified business investments. He began to set foot in catering, real estate and media industries, and gradually formed a fruitful business network.

In 2019, Ashton Chen took a photo with the famous director Sammo Hung and revealed that he was marching into film production, which once again attracted public attention. He returned to the TV screen as an investor and began to direct his own projects. In 2022, the film "Skipping School Detective" directed by him aroused enthusiastic response as soon as it was released, which was not only a symbol of Ashton Chen’s re-rise, but also a reflection of his perfect balance in the dual world of art and business.

The transformation of family life: the appearance of happiness

With the success of his career, Ashton Chen’s private life is on the right track. In 2022, Ashton Chen got married and gave birth to a daughter, which caused a heated discussion. His wife is not only beautiful, but also has an independent personality. Their lives are always shining with happiness, and every warm moment revealed on social media makes people who pay attention to them feel warm. His love and care for his wife and daughter reflects his determination as a father and husband.

In a recent news, some media exposed photos of Ashton Chen going out shopping with his wife and daughter, which is like the epitome of a happy family. He gently bowed his head and held his daughter, and his wife accompanied him tenderly. The whole picture was picturesque. Netizens can’t help but sigh: "Ashton Chen is really a good father and a good husband!" These warm scenes confirm the perfect balance between career and family in Ashton Chen.

Summary: Ashton Chen’s firm belief and enlightenment.

Today’s Ashton Chen is no longer the teenager who only smiles on the screen. He pursued his goal with firm belief, experienced the ups and downs of his career and his family’s philosophy of life, and finally found his own happiness through persistence. Today, he is a successful businessman, a loving father and a loyal husband. All the roles are integrated into one person, which shows us what real success is.

Ashton Chen’s story tells us that life is like a constantly fluctuating river, and success and failure, joy and pain are inevitable; What is important is how to find your own direction in the storm. No matter where we are, we should firmly believe in our hearts and seek warmth and strength in every detail of life.

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