Bitauto Original Since the beginning of this year, the rising oil prices have become a hot topic, which is related to the cost of living of every car owner. With the development of automobile technology, more and more consumers are beginning to choose hybrid models. After all, hybrid vehicles tend to have stronger performance and lower fuel consumption than fuel vehicles of the same level. Isn’t this great?

What is commendable is that on the track of hybrid technology, many first-tier independent brands are constantly updating and iterating their hybrid technologies, and even compared with joint venture brands, they have a trend of "pushing the waves ahead".

Some time ago, GAC Trumpchi officially released the brand name of its new hybrid technology under the electrification strategy - Julang Hybrid. What is particularly noteworthy is the Julang Hybrid GMC2.0 hybrid that GAC Trumpchi is developing in-house. system, and this system will be the first to be installed on Yingku.

So how does this Julang hybrid GMC2.0 perform in terms of technology? Does Toyota's THS hybrid technology have a chance of winning compared to "old car companies"? I will analyze it in detail for you below.

Let’s first understand how the hybrid systems of Trumpchi and Toyota are composed

Julang Hybrid GMC2.0 hybrid system consists of a 2.0ATK hybrid special engine + GMC2.0 electromechanical coupling system. The electromechanical coupling system consists of two motors plus a 2AT transmission mechanism (P1+2AT+P3) .

The fourth-generation THS-II dual-engine hybrid system installed by Toyota on mid-to-high-end models consists of a 2.5L Dynamic Force engine + E-CVT gearbox. The E-CVT gearbox uses a parallel shaft structure and PSD Planetary gear technology.

Looking at the important engine part, the Julang Hybrid GMC2.0 is equipped with a 2.0ATK high-efficiency Atkinson engine, which is an engine specially built for hybrid power.

In order to improve thermal efficiency, GAC Trumpchi's 2.0ATK high-efficiency Atkinson engine uses fast and precise electric intake VVT, and increases the mechanical compression ratio to an astonishing 15.6.

At the same time, coupled with advanced technologies such as GAC GCCS high-efficiency combustion system, 350bar high-pressure direct injection system, low-friction design, waste recycling system, intelligent thermal management and noise reduction design, its thermal efficiency reaches 42.1%, surpassing similar machines type.

In addition, in order to achieve better fuel economy, GAC Trumpchi's 2.0ATK high-efficiency Atkinson engine also uses an EGR exhaust gas recirculation system. It cools the external EGR catalytic converter at low temperature and then takes air, which can improve the knocking tendency and reduce fuel consumption.

In addition, the equipped electronically controlled variable oil pump can accurately control the oil pressure, allowing the engine to supply oil under different working conditions.The optimal matching of oil pump volume reduces the operating displacement of the oil pump, thereby reducing engine energy consumption loss. The measured fuel saving rate under WLTC operating conditions reaches 4%.

The 2.5L Dynamic Force engine of the Toyota THS-II dual-engine hybrid system also uses Atkinson cycle technology, but its engine thermal efficiency is 41%, which is slightly higher than the GMC hybrid 2.0ATK engine. inferior.

In a hybrid system, the electromechanical system plays a more important role than the engine.

Julang Hybrid GMC2.0 electromechanical coupling system is the first integrated dual-motor multi-speed DHT. The 2AT transmission mechanism added between the two motors allows the engine to maintain speed at a lower speed under high-speed road conditions. At the same time of torque output, the engine can be in a more efficient working range after being intervened in driving. Its thermal efficiency utilization rate exceeds 95.5% under WLTC operating conditions, and the vehicle's energy consumption is lower and its power is stronger.

The Toyota THS hybrid system does not have a gearbox in the traditional sense. Its transmission mechanism E-CVT uses a planetary gear set. The engine output shaft and the drive motor output shaft are both fixed inside the planetary gear set.

The disadvantage of the single-speed drive method is that when the power output is high, the engine speed will be relatively high, and the fuel consumption will also increase. Therefore, Toyota THS hybrid models often have much higher fuel consumption when running on highways than on urban roads.

For a car with excellent driving and ride quality, the NVH in the car is undoubtedly an indispensable part, and this is also a point of concern for many consumers.

In terms of NVH, Julang Hybrid GMC2.0 hybrid system has put a lot of effort into it, and its 2.0ATK engine reduces noise by about 3dB compared with engines of the same displacement in the industry.

In addition, Julang Hybrid GMC2.0 is also equipped with a high-power power battery. Intelligent energy management allows the vehicle to run more purely on electric power in urban conditions; coupled with multi-speed and multi-mode drive, the engine can work In the optimal NV range, the noise in pure electric mode is as low as 20 decibels, and the noise inside the idle power generation car is only 42 decibels.

In contrast, the engine noise of the Toyota THS hybrid system will become more and more obvious as the speed increases, thus breaking the quiet environment in the car, and the driver can also feel the engine transmission into the car through the steering wheel. Slight jitter inside. The engine's NVH is not handled to an ideal state, which will affect the comfort in the car and even the driving quality to a certain extent.

Written at the end: Through the above comparison, it is not difficult to find that the Julang Hybrid GMC2.0 hybrid system has many advantages over Toyota THS in many core technical aspects. Its 2.0ATK engine has a maximum thermal efficiency of 42.1%, plus GMCThe electromechanical coupling system is the first integrated dual-motor multi-speed DHT. Compared with Toyota's THS hybrid system, it can make the fuel economy of the vehicle better and the engine performance be better exerted.

At the same time, in terms of NVH that everyone is concerned about, Julang Hybrid GMC2.0 also has good performance. I believe it can bring a more high-quality driving experience than Toyota's THS hybrid system.

In general, the overall performance of the Julang Hybrid GMC2.0 hybrid system can indeed be said to come from behind, which also makes the Yingku hybrid version more competitive.

We will also bring the test drive and in-depth testing content of the Yingku hybrid version in the future. You may wish to follow my Yiche account Xian Yezhan or search and follow [Let’s Drive Brother] on Station B.