Honda hybrid technology plug-i-MMD roots from Honda hybrid technique, which is somewhat similar to Toyota. First, the market mature Hybrid technology roots, accumulated oil and electricity management experience, optimize the economic performance of the vehicle, and then gradually plug the Plug-in hybrid upgrade from mature over to the Plug-in Hybrid, after years of grinding market , both vehicle performance and proven reliability or performance in energy efficiency are very good, and this is the result of many years of accumulation.
Clarity body size with a mainstream intermediate car rather, EPA pure electric mileage of 75 kilometers, which means NEDC easily more than 100 kilometers, if domestic, get subsidies no technical barriers.
and Toyota THS hybrid differences in strategy
Prior’s column I described in detail through Toyota THS and Honda i whether -MMD hybrid system configuration, performance, the huge differences manner. Since Toyota THS than the Honda i-MMD on the market as early as a decade, although the technology is mature and reliable, but it was not yet thought nothing of vehicle electrification, Hybrid purpose is to fuel economy. So Toyota THS to upgrade from the Plug-in Hybrid faced enormous technical problems. This is mainly because THS uses a power split planetary gears, which can lead in pure electric mode, the rotational speed of the generator will overdrive.
Therefore THS are electrically with pure speed limit for a long period of time, it can only be used in very pure electric low speed. This plug-in hybrid vehicles with national requirements define the contrary, because as a PHEV state subsidies in order to achieve the standard, we need pure electric driving speed can reach 120 km / h or more. Until Toyota Corolla domestic launch of dual engine E + plug-in hybrid version only solution to this problem. By increasing the generator generating a one-way clutch to prevent the electric-speed reverse mode. which isEven so just barely able to reach 120 km / h speed requirements of state subsidies for new energy sources.
This Honda i-MMD Plug-in system is equipped with a 1.5L engine efficiency, maximum power 105, maximum torque 134 cattle Meter.
Clarity is Honda Plug-in HEV although also from the original i-MMD hybrid technology derived from, but i-MMD hybrid system from the start thinking architecture in accordance with electrification. Remember Honda recently launched i-MMD soon, a lot of media people borrowed Accord hybrid and Camry hybrid fuel consumption were compared and found little difference in the performance of two fuel-efficient vehicles, the conclusion is given a lot of media can not be given the quality evaluation THS and i-MMD, because the performance of the two vehicles too close, or even close to one decimal digits are the same. This is actually a Honda Hybrid beginning in the development and definition of the Camry hybrid consistent performance goals. In the manufacture of automotive research and development, performance and delivery of any material that would mean a rise in costs, consistent with the Accord and Camry performance and not as THS and i-MMD performance good or bad only basis.
to the Plug-in plug-in hybrid era, i-MMD advantage on the highlights out. Since the planetary gear abandon its traffic policy, instead of using a hollow shaft of the torque coupling strategy + multi-plate clutch, so the structure is not subject to the operating speed of the mechanical gear. Simply put i-MMD does not require any mechanical transformation of the structure will be able to achieve pure electric high speed, and high-speed cruising is a long time, unlike Toyota THS is essentially different.
The main disadvantage of the PHEV
1: in the electric-motor mode is almost useless
2: when the remaining charge SOC is low energy inefficient
[123 ] the first drawback PHEV Toyota does not solve, due to the structure of THS, Toyota in pure electric mode can only be improved by limiting the maximum speed of the generator operation, so when driving in pure electric generator is fully furnished, engine and alsoNo real effect. Honda’s i-MMD plug-in this problem does not exist in pure electric mode, the engine generator completely disconnected from the drive train, so that the engine driven generator can continue to operate to achieve a series hybrid, i.e. extended range mode, this can greatly improve mileage SOC reduce consumption. In order to solve the problem purely electrical efficiency, BYD DM program is given by P0 to compensate for power generation motor, and SAIC EDU GAC Trumpchi solution is closer Honda i-MMD, can achieve a series hybrid (extended range mode ).
i-MMD through the hollow shaft and the multiple disc clutch designed to allow two drive motors have any desired functional and capable of running during seamless handover. So do not like the Toyota THS as the structural transformation from i-MMD to i-MMD Plug-in.
Honda Plug-in HEV control strategy by the multi-plate clutch can be fully implemented on a structure of the double motor and combustion engine driven simultaneously accelerating; electric-driving; extended-range mode, with; the engine and the main motor drive running, power make up more energy turbine power generation hybrid mode, the energy efficiency to solve the low SOC value.
superior scalability
Clarity platform
Back key, with a hybrid technology plug Honda Clarity Plug-in HEV Touring Although there is 4895mm long and 1877mm vehicle width of the vehicle, dimensions and cash Accord is very close, but this is not one and the same platform of the Accord car, not a rival hybrid version of the Toyota Camry. This is a new platform developed by Honda, the platform does not plan any fuel vehicles, which is a pure electrification architecture platform. It may be implemented hybrid plug, may also be implemented to develop a pure electric vehicle, the platform can also be used while arranged FCV hydrogen fuel cells, have a high scalability.
▲ pure electric version of the Honda Clarity
Therefore, it is compared with the Accord and Camry is essentially different. If the destinationSales of the Accord hybrid before the market continues to be minor changes in the product on the basis of a fuel vehicles, then with the launch of Clarity, Honda will enter the era of electrification platform.
Since the beginning of the product definition is considered an extension of the platform, set aside a full gas tank Honda Clarity fuel cell vehicle development needed fuel cell arrangement space and the reactor space.
Clarity Plug-in HEV Touring has a new addition to the electrification infrastructure, in research and development beginning to consider the huge market demand Plug-in product, which means it will not be as highbrow as Mirai, from the beginning you can get good sales, sales through large-scale platform for research and development and continue to lower procurement costs, and gradually from the transition to a pure electric EV PHEV to achieve the ultimate goal of re-FCV product launch.
Such a product planning strategies can further lengthen the product life cycle, so that the cost of constantly dropping, by the accumulation of large-scale sales of the ultimate owner of this than the Toyota Mirai FCV fuel cell at the time of launch FCV fuel cell vehicle lower the cost of a dedicated platform for a stronger market competitiveness. Of course, the car is a systematic project, Honda’s Clarity product highlights more than that, as a hybrid car, the thermal efficiency of the combustion engine is the most critical factor in the SOC at low energy consumption, Honda Clarity how to achieve more through the new engine design low fuel consumption? We talk to you next issue.
