Compared with us, compared with technology, it appeared some time ago? According to the declaration of the hybrid version of Tiggo 8, although the appearance of the car has not changed much, the "hybrid" logo has been added at the tail, that is, the assembly of 1.5TGDI+ hybrid special gearbox DHT newly developed by Chery. Third generation 1.5TGDI high and low power version, low power version 130kw, peak torque of 260Nm；; High power version 140kw, with peak torque of 285Nm. The most important thing is the DHT hybrid special gearbox, which can support pure electric drive, extended range mode drive, parallel mode drive, engine direct drive mode and so on. , developed by Chery Automobile.
DHT gearbox independently developed by Chery. It is reported that the plug-in hybrid gearbox is composed of three power sources, which can form 10 combined gears, and the maximum input torque is 5 10Nm. The simple understanding is to integrate the generator into the gearbox. The integration of motor and automatic transmission requires technical input, which simplifies the mechanical structure and reduces the number of transmission gears to improve efficiency. Chery's hybrid system is good, but there are some differences between Toyota's THS and Honda's i-MMD.
There is a difference between plugging in and unplugging. Toyota's THS can be said to be the "the legendary swordsman" in the unplugged field, and now Honda's i-MMD is also widely harvesting fans. From a technical point of view, the concept of hybrid is not limited to plugging in or not. Two or more power reserves can be called hybrid power. The biggest problem of plug-in hybrid is that the performance drops greatly after power-on, and the fuel consumption will also increase greatly. Unplugged hybrid power system can coordinate the work of motor, battery and generator to ensure sufficient battery power.
At present, new energy vehicles are very popular, and Toyota's THS system is not new. As early as 1997, this hybrid technology was applied to Prius models. THS system consists of two motors, a planetary gear and a clutch. With the cooperation of planetary gears, different cooperation between motor and engine can be realized. Simply put, Toyota hybrid ECVT has no steel belt, not friction transmission, but gear transmission. ECVT realizes stepless speed change through the cooperation of a group of planetary gears and two motors. Toyota's patented technology, relying on technical barriers, has become the king in the field of unplugged hybrid.
Japanese technology giant Honda also has a hybrid system. With the advantages of i-MMD, the gap with Toyota hybrid power has been quickly narrowed. What Honda deserves respect is that it bypasses the planetary gear mechanism and replaces it with a multi-plate clutch mechanism. The fuel consumption level is not much different from Toyota THS. In addition, Honda Hybrid is equipped with a more powerful motor and a larger battery, so Honda Hybrid is more energetic to drive. At present, Honda i-MMD system has been deployed to mainstream hot-selling models.
Domestic cars are improving, of course, it will take some time to surpass them
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