In the past two years, pure electric vehicles have ushered in rapid development, but limited by many inconveniences in use, hybrid has become the best choice for transitioning from internal combustion engines to pure electricity, from Toyota THS to Honda i-MMD, from BYD DM-i to Great Wall DHT, from Highland dual engine, Qin PLUS DM-i, to WEY Macchiato HEV, Chery Tiggo 8 PHEV... A variety of blockbuster new products have realized from SUVs to cars, from 100,000 to 300,000 prices, basically achieving full coverage of the mainstream civilian car market.
Seeing that hybrid is getting hotter and hotter, finally Changan Automobile, the first echelon of Chinese brands, can't sit still and released the iDD hybrid system, and the first model to debut equipped with this system is the recently hot UNI-K.
This UNI-L iDD is highly consistent with the fuel version of the model in terms of styling, continuing the family design of the UNI series, such as borderless grille, hidden door handles, the proportion of high waist line and high window line, through-type taillights, bilateral four-out exhaust, double high brake lights and other elements, greatly improving the recognition, both avant-garde movement, and high recognition.
The interior still maintains the original design, deliberately creating the atmosphere of the starship, the instrument screen in front of the driver is actually composed of three screens, and will increase the power information, mileage information and so on according to the plug-in model. In addition, the central control center is also equipped with a 12.3-inch large screen, with a variety of functions such as the Internet of Vehicles, voice control system, navigation and so on.
However, these can not dispel Qingge's curiosity about the new car, after all, for it, the powertrain is the top priority.
In fact, as early as the blue whale NE 1.5T engine on the UNI-T was first released, Changan Automobile announced the electrification transformation attribute of the blue whale series powertrain, that is, the active blue whale NE series engine has a variety of versions (including 1.4L/1.5L/2.0L three displacements). Among them, the 1.5T engine with the model JL473ZQ6 is a modified engine that fully meets the requirements of HEV and PHEV systems.
According to the relevant information released by Changan Automobile at the Guangzhou Auto Show, this special engine transformed from the active Blue Whale NE 1.5T engine will achieve a full-scene Miller cycle through the precision VVT technology of the intake and exhaust, and its compression ratio will be further improved, with the exhaust gas recirculation, electronic thermostat and the simplification of the pulley train, the official said that its maximum thermal efficiency can reach 45%.
Therefore, in the parameters part, the new car is bright enough, 1.5T hybrid special engine + three-clutch electric drive transmission + high-energy battery pack composed of plug-in hybrid system, the comprehensive output power of 210kW, the maximum mileage of a single full oil full power is more than 1100km, and the fuel consumption in the feed state is only 5L/100km.
Among them, it is worth mentioning, first of all, the three-clutch electric drive transmission, which can be simply understood as a set of 6-speed DCT dual-clutch transmission, and the combination of P2 motors, and the motor and engine ends have added a clutch device.
The motor coaxial to the engine can be directly connected to the transmission through the third set of clutches, and can directly provide power to the semi-shaft after the deceleration treatment of the transmission, that is, pure electric mode; in turn, when going downhill or braking, the reverse thrust of the wheel will also drive the permanent magnet rotor of the motor to rotate, which becomes a generator, that is, energy recovery; in addition, the power transmitted by the engine to the transmission can also be interrupted by releasing the clutch, and then engaged to the motor, that is, the battery charging mode; finally, in hybrid mode The clutches of both the engine and the motor are closed, and the two are electromechanically coupled through the transmission, which together output power to the half shaft/wheel.
In the actual experience, new owners should focus on smooth and energy-saving, which can provide a smoother driving experience. The entire acceleration process of the vehicle is very linear, even if the accelerator pedal is deep, the power output has a gradual process, not as grumpy as the direct drive of the motor, which is also in line with the positioning of the flagship level of the UNI-K series.
Second, the driving modes of the new car are also very simple and clear, offering HEV, EV and i-X, without the complex crossover multi-driving mode adjustment of other plug-in models. Among them, the i-X mode is a "Love Creation Space" that can support a rich driving experience of different experiences, and the Changan UNI-K iDD system has built-in "surging power", "Buddhist long endurance", "camping mode", and can also customize various options. The first two are easier to understand, but explained more, camping mode is similar to the power retention function, which can maintain the battery level at 70% SOC for later external discharge.
In addition, the UNI-K iDD has been optimized for vibration filtering and lateral shaking on the chassis, using a series of measures or components to enhance handling and comfort, such as flexible connection between the front and rear subframes, horse brand MC6 high-performance tires, aluminum alloy swing arms, and front overhang bar. From the actual experience, it can also be concluded that the UNI-K iDD has good control flexibility and can maintain good trackability in continuous direction change or cornering. Comfort is also good enough, the shock filtering effect is good, and the suppression of bounce and shaking is also in place, but it is not soft, even the rear passengers can still clearly perceive the road sense.
In terms of fuel economy, our full test driving experience is about 150 kilometers, most of which are busy urban sections, nearly half of the way is set up with 90% power retention (equivalent to power loss driving), the rest of the road is interspersed with various driving modes, at least 4 hours in the middle is idle shooting, and the final fuel consumption is 4.7L/100km, and the fuel saving performance is very eye-catching.
Overall, from a technical point of view, UNI-K iDD, whether in the power level or pure electric mileage or fuel economy, the same level of products have certain advantages, and from the current market environment, BYD in the DM-i market is like a fish, any brand wants to attack this market is not easy, but the brand stickiness of Changan Blue Whale family users is maintained very well, thanks to the "third entrepreneurship" for services, aftermarket, user co-creation and other aspects of intensive cultivation, Changan is still very promising to convert a large number of iDD users.