The Dongfeng Honda CR-V Rui·Hybrid e+ that I just started this year has been driving for a few months. As Honda’s first plug-in hybrid model in the Chinese market, it is also a heavy model in the layout of Dongben New Energy. I personally feel that the Dongfeng Honda CR-V Rui Hybrid e+ launched this time is full of sincerity. It is the leading level of the same level in terms of power, fuel consumption and space, and it is equipped with Honda’s latest third-generation i-MMD hybrid. power system. Next, I will combine the driving experience of this car in the past few months to discuss the advantages of the Dongfeng Honda CR-V Rui·Hybrid e+, including the history, structure, and working mode of the i-MMD hybrid system.
Dongfeng Honda CR-V Rui·Hybrid e+
1. Honda i-MMD hybrid system honda1 honda i-MMD hybrid system span8p Toyota’s THS system is generally used. Toyota Prius equipped with the first generation of THS came out at the end of October 1997. In 2006, FAW Toyota introduced the first generation of and Prius for domestic production. Later, GAC Toyota introduced a hybrid version. Camry. In fact, in the field of automotive hybrids, Honda has been cultivating for a long time, and it has developed almost at the same time as Toyota, but the technical route adopted is completely different. As early as the 1997 Tokyo Motor Show, Honda J-VX concept car, a hybrid system called IMA debuted for the first time, opened Honda's hybrid road, this system is based on engine power, supplemented by electric motor Power system structure. Later, it was discovered that the direct-drive structure of the engine could not compete with Toyota's THS system.Therefore, Honda began to explore other hybrid methods, and a more efficient and dynamic hybrid system is ready to emerge. This is the Honda i-MMD system. And Honda’s i-MMD dual-motor hybrid system condenses Honda’s more than two decades of technical precipitation, and has now developed to the third generation. Its characteristics are just the opposite of the previous IMA hybrid system. is mainly driven by electric motors and supplemented by engine driving. When applied to plug-in hybrid models, it combines the advantages of EV (pure electric) and HEV (hybrid oil and electricity). The daily preference is pure electric drive, and high speed is biased towards the engine. drive. Honda SPORT HYBRID
Honda i-MMD hybrid system
Second, Honda third-generation i-MMD hybrid system structure
109span strong 109span 8 -MMD hybrid system has been developed to the third generation, the system is mainly composed of Atkinson cycle engine, continuously variable transmission E-CVT, generator, drive motor, power battery , That is, the engine is connected to the engine output shaft through a clutch, and is connected to the generator through a gear before the clutch. The drive motor is directly connected to the motor output shaft. There is a third shaft between the engine output shaft and the motor output shaft, which transmits power to the wheels. . It can be seen from the figure that the overall structure is relatively simple, with only one clutch to control the torque output line from the engine to the wheel end.
i-MMD system working principle
third-generation i-MMD hybrid system
It is worth mentioning that E-CVT is not a CVT gearbox in the traditional sense.It is a gear structure specially designed to connect the engine, drive motor, and generator. The biggest feature of this gear structure is the short energy transmission path and the high mechanical efficiency of . But unlike the Toyota THS system based on planetary gears, the engine and motor in the Honda i-MMD system are coupled through ordinary gears instead of the planetary gears , which can achieve hybrid coupling. This system can be connected in parallel and hybrid through a clutch. Switch between the two modes of connection. Let’s put it this way, Toyota’s THS uses planetary gears to distribute the power of the engine and the motor for different proportions of hybrids. It is biased towards engine-driven vehicles. Speed range to improve fuel economy. In the i-MMD system, the work of the motor is always the absolute main force, and the engine is more used for power generation and kinetic energy recovery, and the clutch is used to switch between different driving modes to ensure that the entire system is always in the best working efficiency. So this is something that Toyota's THS system, which always has a mechanical connection between the engine and the output shaft, cannot do.
3. Honda i-MMD hybrid system working mode
Honda i-MMD system has a total of 3 working modes: EV drive mode, hybrid drive mode, engine drive mode
1. EV drive mode (pure electric drive mode)
In this mode, the battery supplies power to the motor, and the motor drives the vehicle alone. The engine and generator do not work, and the clutch is also in a disconnected state. It is suitable for the situation where the vehicle starts from a standstill and is in a low-speed and low-load state.
2. Hybrid drive mode
In this mode, the engine drives the generator to generate electricity.Directly supply power to the traction motor to drive the wheels, and the clutch is in a disconnected state. Suitable for high load and rapid acceleration conditions.
3, engine drive mode
In this mode, the clutch is engaged and the engine directly drives the wheels. It is suitable for high-speed and low-load conditions, and is generally used during high-speed cruise. Once the throttle is increased at high speed, it will enter the hybrid drive mode.
i-MMD hybrid system working mode
IV. Dongfeng Honda CR-V sharp hybrid e+ advantage
actually speaking of Dongfeng Honda CR-V hybrid The advantage of e+ is undoubtedly the three points mentioned above. It is equipped with i-MMD hybrid system , but the biggest advantage in real life is that is fuel-efficient and can obtain green cards in restricted cities . The CR-V sharp hybrid e+ has a range of 85km under pure electric NEDC operating conditions, which supports pure electric driving at longer times and at more speeds. When the pure electric mode is over, the car can enter the electric-driven hybrid mode, so CR-V sharp·hybrid e+ can achieve full electric driving in daily multi-scenarios. In this hybrid Under the application of power system, the fuel consumption of CR-V sharp hybrid e+ is as low as 1.3L/100km under NEDC operating conditions, and the fuel consumption performance exceeds most plug-in hybrid models on the market, which greatly solves the problem of user travel. can't find the charging pile and the cruising range is entangled. Moreover, green cards can also be obtained in first-tier restricted cities,Greatly solve the problem of difficulty for car owners in first-tier cities to get the license plate.
Dongfeng Honda CR-V Sharp·Hybrid e+
Dongfeng Honda CR-V Sharp·Hybrid e+
5. In summary, Dongfeng Honda CR-V The i-MMD system carried by the V-Sharp Hybrid e+ is subversive in its design concept. It is a hybrid system that is almost close to the pure electric drive mode. The electric mode, long-distance can be driven by fuel, and the hybrid characteristics are very suitable for the needs of the current mainstream consumer market. In the current situation where the charging infrastructure is not yet complete, the convenience of use is better than that of pure electric models. Personally, I feel that the Dongfeng Honda CR-V Rui·Hybrid e+ is more suitable for domestic consumers and will definitely be the main vehicle in the hybrid market in the future.
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