For fuel engines, the country’s mood is very complicated. Automobile manufacturing is called the crown jewel of modern industry, but China, as the world's factory, has not made many achievements in the automobile industry. The decline of the domestic automobile industry is largely due to the backwardness of independent engine technology.
The country has also tried many methods, whether it is changing the market technology or reverse development, but they have not achieved much results. Because the internal combustion engine is so complex, it involves both technology and experience accumulation, and craftsmanship is also essential. At the same time, internal combustion engines are very fragile. If you are not careful, they will suffer from various problems, and a slight difference can lead to a huge difference.
Later, the country also "figured it out" and began to focus on subsidizing new energy vehicles in 2012, focusing on overtaking in corners. Unexpectedly, it spawned a lot of "cheating subsidy" experts and created a large number of "industry Rubbish". However, the traditional internal combustion engine has suddenly "enlightened" and has developed vigorously in recent years. All major independent brand car companies have their own reliable and competitive products.
In the 2020 "China Heart" Top Ten Engines, 8 engines from independent brands are on the list, and of course there are two engines from Honda and General Motors. What are these ten engines like? What kind of past and present lives do they have? Let Che Jujun take everyone to take a look.
1. Hongqi 1.5T, the key to revival
Hongqi’s sales growth in the past two years has been leaps and bounds. In the past October, 23,000 vehicles were sold, which is relatively high. A 93% increase over last year. The revival of Hongqi is mainly due to the "two carriages" of H5 and HS5. After all, at any time, there are still only a few people buying C-class cars like H9.
The Hongqi H5 is equipped with a brand new 1.5T assembly this year, which is the award-winning one. The maximum power of this engine is 124kW and the maximum torque is 258N?m, which is not too outstanding in terms of parameters. Great Wall has had a 1.5T four-cylinder model that is close to the power level for several years. What's more, this engine also "drinks" 95# gasoline, which is relatively delicate in comparison.
However, compared with the 2019 1.8T engine, this 1.5T engine has the same power and even better acceleration performance, but its fuel consumption has been reduced by nearly 1L/100km. Therefore, its emergence solves an urgent need for Hongqi. From this perspective, its market significance is very great. I believe that giving this award to the Hongqi engine has a certain sense of commendation.
2. Lynk & Co's 1.5T light hybrid, small cost and big results
Compared with other car companies, Geely is simply a "big carrot" who wants to get involved in everything. Self-priming, turbo, four-cylinder, three-cylinder, CVT, AT, dual-clutch, almost everything you can play with. Anyway, it has three major brands, so there is nothing wrong with trying them all.
When it comes to hybrids, Geely can also be said to be "half-hearted". It was first reported that Geely would cooperate with Toyota and "receive" Toyota's THS technology through its holding company Corun. After being circulated for a long time, there was no follow-up. Lynk & Co 01 did launch an HEV model, but it used its own original architecture and did not focus on promotion. Many PHEV models have also been launched, but they do not seem to be the main focus.
Until the past year or so, Geely seemed to have suddenly established its goal, which is to mainly promote 48V light hybrid systems. This system is very simple. It is based on Geely's 1.5T three-cylinder engine and adds a 48V-BSG motor to it. When starting, the motor is used to start, which improves the starting performance of the fuel engine and solves the idling fuel consumption problem of the internal combustion engine. Then it intervenes during coasting to save some fuel and helps push when accelerating rapidly.
Although simple, this system has a very obvious effect on improving fuel consumption. For example, the comprehensive fuel consumption of the Lynk & Co 06 MHEV model is 5.9L/100km, while the fuel consumption of the regular version is 6.6L/100km. , fuel consumption has been reduced by nearly 11%, and the driving experience has also been improved to a certain extent, so Geely is now particularly active in promoting this system.
3. Dongfeng 1.5T is finally no longer an “IWC brand”?
Compared with FAW’s “big brother” who is “the target of public criticism” and constantly criticized for spending a lot of national funds and cannot help it, Dongfeng, as the “second brother”, faces much less pressure from public opinion.
But this does not mean that Dongfeng is doing very well. Compared with FAW's Pentium and Hongqi, Dongfeng's independent technology is weaker. Several models of "son" Dongfeng Fengshen have long used engines and gearboxes purchased from outside. Fortunately, Dongfeng is close to its brothers PSA, Nissan, and Honda, and has a joint venture with Getrag, so it has been able to come up with different models.
Dongfeng’s 1.5T engine was launched not long ago, with a maximum power of 110kW and a maximum torque of 230N?m. Compared with Great Wall Geely’s, it is basically at the level of the previous generation model. When installed on the AX7, it is true that the fuel consumption and power performance are not outstanding, but it is always a good thing to be able to develop it independently.
Not long ago, Dongfeng announced that it will launch a new generation of high-performance supercharged direct injection gasoline engine, code-named C15TDR, which is divided into a power version and a high-efficiency version. The maximum power of the power version reaches 150kW, and the thermal efficiency of the high-efficiency version reaches 41.7%. Parameters It seems much better than the award-winning one. However, it remains to be seen what the specific strength is, when it will be "on the bus", and how the market will perform after it is "on the bus".
4. SnapCloud Power 1.5T, BYD’s ambition
In recent years, BYD has basically focused its energy on new energy models. In fact, many people have forgotten that at the beginning of the century, BYD and Chery are the top two self-owned brand car companies in terms of sales, and Geely's fortune is behind them. Moreover, BYD has also made great achievements in the field of fuel powertrain. The first domestically produced turbocharged engine and the first domestically produced dual-clutch gearbox were both launched by BYD.
The latest SnapCloud Power 1.5T is BYD’s new “suppressed” move. The maximum power reaches 136kW and the maximum torque reaches 288N?m, which is a significant improvement compared to the old 1.5T.
BYD has also put a lot of effort into building the Song Plus it carries. With the foundation of quasi-medium-sized SUV, entering the compact SUV market with H6 and CS75 Plus shows that BYD still has ambitions in the fuel vehicle market.
5. Will MG 1.5T finally surpass Civic?
In November 2017, MG’s 1.5T engine was installed on the MG?6. The slogan at that time was to surpass the Civic and become the benchmark for domestic sports sedans. Of course, it cannot actually be surpassed, but the main attention and battlefield of independent brands are concentrated on the SUV market. It is quite brave to launch a sports sedan like MG?6.
Now the new generation of MG 1.5T engine has been launched, with a maximum power of 133kW and a maximum torque of 285N?m. This engine uses a Honeywell high-flow turbine. The electronically controlled turbine intervenes very early and responds very quickly. It can reach the maximum torque at 1500rpm. All core parameters are stronger than the Civic's L15B8.
The measured acceleration time of the new generation MG?6 to 100 kilometers is 7.98 seconds, exceeding the 8.48 seconds of the Civic. From this perspective, the flag set back then has finally been realized. But it is worth pointing out that the 1.5T engine on the Civic is not Honda's strongest, and it has not been updated in recent years. The high-power version of this engine is installed on the Crown Road, and it is still stronger than the MG 1.5T. I hope the MG?6 can force Honda to come up with something better.
6. Blue Whale 1.5T, the benchmark for independent powertrain platforms
In the 2019 "Chinese Heart" top ten engine selection, Changan's 1.4T Blue Whale engine It has already been selected. 2.0T was previously selected on the 2017 list, but this year it was replaced by 1.5T. "Three heroes in one discipline", Changan's Blue Whale powertrain platform is indeed overbearing.
It can be said that Changan’s engine is equipped with a very wide range of engines. The most famous one is of course the Changan CS75 Plus. This car has recently launched a fierce pursuit of the Haval H6.
The maximum power of this engine is 131kW, and the maximum torque reaches 265N?m. It is slightly weaker than the engines of Song Plus? and MG?6, but considering that this engine has been launched for several years, this result is Still very good. The same turbine intervenes very early, reaching maximum torque at 1450rpm. The most important thing is that for a car as big as the CS75 Plus, the Ministry of Industry and Information Technology’s comprehensive fuel consumption can reach 6.7L/100km. From this perspective, the strength of this engine is indeed impressive.
Ford "asked about the price" of this engine before, but in the end it was probably not worth it. In fact, it would be a good choice to equip it on the Escape.
7. Honda’s 1.5L hybrid is not in the right position
A while ago, Che Jujun told everyone about Honda’s third-generation i-MMD system, which is indeed very powerful. . As a latecomer, it uses ideas that are very different from Toyota's THS system, bypasses Toyota's patent barriers, and proposes its own unique solutions.
The core idea of ??Toyota's THS system is to use the engine core and the motor as an auxiliary to allow the engine to run in the high-efficiency area as much as possible to achieve fuel-saving effects. The core idea of ??Honda's i-MMD system is to use the motor as the core, and the engine as an auxiliary, so that the motor can work as much as possible. In this way, there are more working conditions that use electricity, and the fuel consumption will naturally be reduced.
However, Honda has not promoted this system in A-class cars. Until this year, this system was installed on the two brothers Lingpai and Xiangyu. But to be honest, although these two cars are huge in size, they are actually Honda's domestic "special" models, not "genuine" global models like the Civic. The main responsibility is to take the cost-effective route and the quantity, but the overall quality is not good.
The early Lingpai actually sold well, relying on the good reputation of the old 1.8L model. Later, after switching to a 1.0T three-cylinder engine, the engine was no longer its selling point. In comparison, these two cars actually need the 1.5L Earth Dream self-priming engine, which has enough power, low fuel consumption, and the price is not that exaggerated. Nowadays, the entry price of the 1.5L hybrid is close to 140,000. At this price, many people directly choose the Civic, or buy the Corolla Twin Engine, so this system has little chance of being used.
8. GM 2.0T is no longer a "gas tiger"
GM's 2.0T engine is installed on many models, such as all Cadillac series, yes, you You read that right, all Cadillac series currently use this engine, and it is also equipped with Regal, LaCrosse, Envision, Envision and other models.
GM has recently "slimmed down" this engine twice, including a reduction in power from National V to National VI. Compared with the previous model, the new National VI model has been reduced by 3kW, but only the power. Turn it down and the torque doesn't decrease. The maximum power still reaches 174kW, which is good for this level of models.
This engine adopts a unique "variable cylinder" mode, which mainly designs a set of three-stage sliding camshaft. When strong power is needed, a high-angle cam is used to increase the valve opening, increase air intake, and the engine works "hard" to produce power; when power is not so needed, a low-angle cam is used to reduce air intake. , the engine begins to "slow down" to reduce fuel consumption; when cruising or taxiing, simply shut down cylinders 2 and 3 and transform into a two-cylinder engine to achieve the ultimate fuel saving effect.
After adopting this engine, GM’s overall fuel consumption has dropped a lot. In fact, the three power combinations currently promoted by GM, 1.5L+6AT, and 1.5T/2.0T+9AT, have good economic performance and stability. At least they have found their own direction.
9. Great Wall's new 2.0T is not "on the car"
Great Wall participated in the selection of the GW4N20 engine. Official information said that it is used in the third-generation Haval H6 and Haval Big Dog. In fact, these two models have not yet launched 2.0T versions, and currently only 1.5T models are on sale.
However, Great Wall’s engine has been released a long time ago, so it is no longer a secret.
According to Great Wall’s official information, the new 2.0T engine has a maximum power of 180kW and a maximum torque of 385N?m. This data is no less than the high-power 2.0T of Honda and Volkswagen, and its first The thermal efficiency of the first mass-produced model reached 38.3%, which can be said to be very advanced technically.
The new engine adopts a new generation of Miller cycle combustion model, and introduces a dual-flow supercharger and a small inertia turbine, which is currently a relatively leading technical solution. However, we still have to wait until we get on the bus.
10. "SAIC π" engine, does diesel engine still have a chance?
SAIC's engine named "SAIC π" is considered an "extraordinary" on the list. The implementation of National VI. Many diesel models that are not rich enough have been blocked from the National VI, but the "SAIC π" is a fish that has slipped through the net.
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The maximum power of this engine reaches 160kW, which is close to the level of mainstream 2.0T gasoline engines. The maximum torque reaches 480N?m. What is the concept of this number? Honda Crown Road's 2.0T engine has a maximum torque of only 370N?m, which is nearly 30% higher. Therefore, it is well-deserved to say that diesel engines are "powerful".
Of course, the passenger use of diesel engines has not been very successful. The main reason is that the work is rough and the driving experience is not good. SAIC has prepared quite a few noise reduction measures for it, including the use of high-precision silent gears, generator decoupling shock absorbers, etc. In terms of output results, it's pretty good. Unfortunately, there are too few models, and its influence is limited, and it has not yet formed a fixed reputation.
Summary of Cheju
If you plant flowers intentionally, they will not bloom, but if you plant willows unintentionally, they will create shade. In the past few years when the country has completely "ignored" fuel engines and has been advocating a "burn ban", the technologies of major manufacturers have made breakthrough progress. In fact, the reason is very simple. Models such as Haval H6 and Changan CS75 Plus sell so well that manufacturers really make money. The market has always been the best catalyst.
In fact, the same is true for new energy models. The past two years when battery life and efficiency improved, and real leaps and bounds were made, were when government subsidies began to decline. "Return" the market to these car companies and reduce their "bias". The fastest progress will be made when the market is bruised and swollen.
What do you think?
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.