Just on March 1st, we received an invitation from Geely to go to Guangzhou to meet with Hoshikoshi L Thor Hi· The X hybrid model has a static experience.
In the product promotion session before the experience, the product manager of this car said a sentence that shocked me very much: "Lei Shen Zhi Qing, the first hybrid in China to kill the two fields!" ”
Although I haven't been in the industry for a long time, I've also experienced Toyota's THS hybrid and Honda's i-MMD hybrid. To be honest, these two hybrid systems are indeed the benchmarks in the current HEV field, and Geely's first HEV hybrid model is about to challenge the benchmark, where is its strength?
About Lei Shenzhiqing, it was announced to everyone as early as the press conference held on October 31 last year. At the Guangzhou Auto Show in November, Lei Shenzhi Qing Hi · The X-Hybrid platform also appeared prominently on the stand, and most of the technical details have surfaced.
First, let's briefly introduce the hi · Some key figures for the X hybrid platform: 1.5TD hybrid engine, thermal efficiency of up to 43.32%, the world's first mass-produced 3-speed transmission, fuel consumption as low as 3.6 liters per 100 km ...
In the eyes of friends who are familiar with cars, each of the above data is enough to shock him.
Let's start with the core 1.5TD hybrid engine, although ray god intelligence hi · The X hybrid platform contains two hybrid special engines, 1.5TD and 2.0TD, but the real core of the future is still this 15TD based on the CMA architecture.
With a displacement of 1.5L and codenamed DHE15, it can achieve a maximum power of 110 kW and a maximum torque of 225 N·m. The parameters do not seem to be stunning, but its ultra-high thermal efficiency of 43.32% basically covers half of the entire operating map area, and has been certified by the authoritative "Energy Efficiency Star" as the world's most thermally efficient mass production hybrid engine. It should be known that the top hybrid system in the Japanese system can only achieve a thermal efficiency of about 41% at present, and Lei Shenzhi can easily surpass it, and indeed has the strength of "second kill".
And to push the thermal efficiency so high, high-pressure direct injection, supercharged intercooling, Miller cycle, low-pressure EGR four technologies are indispensable. You know, the 2.0L naturally aspirated engine matched by the Honda i-MMD does not have direct injection technology in the cylinder, and still uses relatively old and inefficient manifold injection.
Looking at the DHT Pro transmission with 3 gears, the technical content is no less than the high thermal efficiency engine. The gearbox used in the hybrid platform is very different from the traditional gearbox, and it needs to solve two problems, one is to keep the engine in the highest thermal efficiency speed range as much as possible, and the other is to reduce the energy loss during power transmission.
The engineers of RayTheon Intelligent Engine cleverly designed two motors and three clutches in the gearbox. Among them, the P1 motor is responsible for generating electricity, the P2 motor is responsible for driving, and the P1 motor can also play the role of starting the engine, and the P2 motor further reduces the engine speed during high-speed cruising with the help of 3 gears, thereby improving efficiency.
Thanks to the three gears with clutches, the engine can be directly connected to the wheels at speeds above 20 km/h, further reducing power loss. The direct connection mode of Japanese competitors often needs to be achieved at a speed of 70km/h or even higher.
HEV is the foundation, once the foundation is laid, then the follow-up PHEV, EV will be handy. For example, although the current launch of the Star-Cross L Thor Hi · The X hybrid model can only refuel and cannot be charged, but as long as the battery capacity is increased and the charging port is added, it can become a PHEV plug-in hybrid model in seconds. If the direct connection mode between the engine and the wheel is abolished and the engine is used only as a driving generator, it becomes a REEV extended range electric model like the ideal one.
At the same time, this set of thunder gods and minds Hi · The X hybrid system can be found on any model of the Geely China Star series. Imagine that in today's High Oil Price Background of No. 92 Gasoline Breaking through 8 yuan / liter, a model with a strong and smooth power output and extremely quiet comprehensive fuel consumption is only 4-5 liters / 100 km, will you still be afraid of high oil prices?
So, the product manager is right, Geely does have the strength to challenge the Shuangtian Hybrid!