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Engine thermal efficiency is only 37%! Kunpeng DHT hybrid, another "big pie" drawn by Chery?

At the beginning of April, the much-anticipated Tiggo 8 PLUS Kunpeng e+ version was officially launched, with a price range of 155,800 yuan to 171,800 yuan. The hybrid system equipped with this car is Chery's Kunpeng DHT hybrid system, in the early publicity, everyone can say that the expectation value of this hybrid system is full, but when the Tiggo 8 PLUS Kunpeng e+ version is officially listed, it is found that this car does not seem to be a "complete body".

Engine thermal efficiency is only 37%! Kunpeng DHT hybrid, another "big pie" drawn by Chery?

In the construction of Chery's Kunpeng DHT hybrid, all kinds of publicity is overwhelming, what national new energy technology project, the world's first full-featured hybrid configuration Kunpeng DHT platform fully integrated oil / electricity / hydrogen hybrid system, 3 engine 3 gears 9 mode 11-speed full-scene mode, the highest Chinese brand 510N·m maximum input torque, the maximum output torque also reached 4000N·m. The only one in the industry to realize dual motor simultaneous drive, the only Chinese brand has 3 physical gears. 4WD version zero hundred acceleration

Engine thermal efficiency is only 37%! Kunpeng DHT hybrid, another "big pie" drawn by Chery?
Engine thermal efficiency is only 37%! Kunpeng DHT hybrid, another "big pie" drawn by Chery?

However, when the Kunpeng Hybrid was officially listed, many people were dumbfounded, Tiggo 8 PLUS Kunpeng e+ The fuel consumption in the lowest charged state of the WLC version is as high as 6.5 liters, which is much higher than the previously declared 5.0 liters, of course, partly because of the previous publicity, Chery used the NEDC working conditions, but even so, this feed fuel consumption is also high, in contrast, the weight of the car is heavier, the size of the new Tang DM-i single motor long endurance version, WLTC working conditions is 5.98 liters per hundred kilometers, and the biggest reason for this is that the current Chery Kunpeng hybrid, did not carry the set of thermal efficiency announced at the conference to reach 45 % of the hybrid special engine, but a previous Arrizo 5 on the 1.5T engine, the thermal efficiency is only 37%.

This engine codename is SQRE4T15C, this engine was first mounted on Chery Arrizo 5, codenamed 4T15B, for the National 5 engine, and later in order to adapt to the emission standards of China VI, Chery upgraded this engine, the suffix code was upgraded from B to C, but this is not a hybrid special engine, but an engine designed for fuel vehicles, its thermal efficiency is relatively low, only about 37%, no Atkinson cycle, no high-pressure direct injection system, no ultra-high compression ratio, It is not equipped with an EGR exhaust gas recirculation system. This also leads to the current hybrid system, the fuel consumption of the feed is high, that is to say, only the Kunpeng DHT hybrid system equipped with Chery's advertised hybrid engine with a thermal efficiency of up to 45% is considered complete.

Engine thermal efficiency is only 37%! Kunpeng DHT hybrid, another "big pie" drawn by Chery?

Chery's DHT hybrid system, like a hastily launched product, it has not even prepared a hybrid special engine for this system, however, whether it is BYD, Great Wall, Geely, for its hybrid system, redesigned a hybrid special engine, in this regard, Chery is somewhat underprepared. If you like this hybrid system, you can actually wait until Chery launches a set of hybrid engines with higher thermal efficiency, and perhaps the performance of this hybrid system will be more satisfactory.

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