Recently, BAO master invited to participate in the test drive Volkswagen’s four domestic PHEV’s. Although he had also tried to include generation Golf 7 Magotan GTE and GTE, the vehicle to the author left a good impression. But this will explore Yue GTE, Tiguan L plug-in hybrid version, Magotan GTE, Passat plug-in hybrid version of the test drive again all at once, then let the author have a new awareness; especially in the Volkswagen Group China District CEO, Volkswagen brand CEO Dr. Pingsi Han Chinese, and Volkswagen Group (China) R & D department heads, after the vehicle R & D Center of Excellence Leader Wiedemann dialogue, BAO master for Volkswagen made in the field of PHEV and BEV layout, with higher cognitive dimension.
Mass way the PHEV: energy saving, environmental protection, performance, reliability, cost [123 ]
during the epidemic, BAO master had conducted a transatlantic dialogue with Dr. Kai Philipp Volkswagen electric power system technology project manager for Volkswagen in the future PHEV field of technical details and development planning confirmed. Interested in the technical details of the junior partner can see “epidemic raging PHEV engineer with Volkswagen of Germany to the field of cloud dialogue” in this article. Today there is no longer carry out more technical details, just to interpret a type of science for the general public PHEV program.
For mass PHEV powertrain technical solution is generally based on two platforms, a transversely mounted engine MQB platform, the other is the longitudinal engines MLB internet. Forming at least two combination regimen of low power (on the MQB There are three tuning program) in each platform. The domestic-made PHEV models equipped with the system is integrated power 155kw, torque of 400 Nm comprehensive program after the release of the PHEV version of the Touareg test drive, it uses a 2.0T L4 turbo engine, the maximum power 270kw , maximum torque 700Nmiddot; m.
Whether or MLB MQB platform PHEV embodiment, the core principle is adopted a motor position P2 mix actuation system. Position of the motor is located in the engine, between the clutch and the gearbox, while retaining the DSG previously common, non-torque converter portion of 8AT. This approach significantly different from the Japanese brand popular alternative to traditional motor or gearbox planetary gear practices. Although the latter greater fuel efficiency, but higher transmission efficiency of the former, we can say both have their own characteristics. If used at full power, hundred kilometers MQB platform program will be less than 2L, and hundred kilometers MLB platform is about 2.4L. So in terms of fuel economy perspective, the public’s P2 solutions has a very good performance, for energy-saving emission, its ability is quite friendly.
From a performance point of view, the public program is compared with the program Japanese, the more suitable as the German high speed Any speed conditions, with good support for high speed performance; and Japanese solutions make a lot of speed when the vehicle reaches 185km / h will hit the performance limits.
If viewed from the perspective of reliability and manufacturing cost, this popular program P2 is also an advantage. Since its public TSI + ZF been using third-generation 8AT gearbox DSG changes the lowest cost gold power combination (MLB program does not use the public instead of using DSG gearbox, but also the MLB platform has been used for many years mature scheme), all the modifications are based on the existing parts for small improvements mature, so the reliability can be guaranteed, the vehicle may be produced at a lower cost.
test drive experience: balanced, smooth, calm
incorporated in the introduction to the public domestic modelsAfter PHEV technology solutions, we must talk about the BAO master test drive experience. Since this test drive models and test drive time are relatively full, so there is time to be able to master BAO more detailed observation of changes in the mass PHEV models with ordinary fuel vehicles.
let BAO master the most impressive vehicle weight balance. HEV hybrid car because I own a car that is older, although the car’s overall satisfaction with the performance of people, but equipped with two systems, so that the vehicle will always be “top-heavy” feeling, the results of its due is daily during braking,
nod is very serious.
However make BAO master surprise is that this
nod phenomenon in this test drive All models are not found. Due to the small scope of the changes, and the weight is reasonable, all public PHEV models have a very balanced sense of control, even in the back of the chassis level, some models even stronger version of its fuel performance.
The second let BAO master gratifying aspect is the overall ride their vehicles. The case has been due to the natural structure dictates, dual-clutch transmission in low-speed throttle acceleration, it will inevitably lead to frustrated. However, this test drive PHEV models, by replacing the traditional motor torque converter, the torque which matches the speed of the hydraulic torque converter is higher than many conventional, so in this test drive has to experience the master BAO do not ever feel smooth to drive Volkswagen fuel vehicles.
The third master let BAO appreciate the point, is in EV mode of quiet and comfort of the vehicle. In this mode, only the people in the car to hear the wind noise and tire noise, driving environment increased dramatically. On the other hand, since the torque of the motorRising curve similar to the naturally aspirated engine, which undoubtedly unexpected sense of driving experience compared to the level of a turbine engine, a qualitative improvement.
Of course, the test drive the vehicle, there is also a drawback, the braking system is a result of the energy recovery means that compared to traditional purely mechanical brakes, to be coordinated with the braking energy between the mechanical brake, so somatosensory levels need to play more advance (pre-stage due to the higher efficiency of energy recovery, to the actual braking distance than the conventional brakes short). This is perhaps in the future in tune, it can be improved.
“excessive” deep meaning: Prospects, pure electric, carbon neutral, preferred
In a test drive apart from the exchange with Dr. Feng Sihan let BAO master learned a lot. The most important point is that the future of the public for the new energy market judgment and determination. According to Dr. Feng Sihan, he expects the next five or six years, the overall size of China’s new energy vehicles will be 5 million to 600 million units, which accounted for plug-in hybrid products in about 20 to 30 percentage percentage, that will there are over one million units of the scale.
This figure is based on, although slow charge pile penetration tier cities is not high, but the two three-wire or four-tier cities slow pile installation charge and has a very bright future, while the latter compared to the first-tier cities, has a much larger potential user scale, so PHEV development in China’s bright future.
from a higher global perspective see PHEV technology, it has a similar determination. Earlier, Kai Dr. Philipp master connection with the BAO also believes that the transition period PHEV technology will be a decade or longer, because the pure electric car is still difficult to spread rapidly in this period of time.
However, Dr. Kai Philipp, whether or Dr. Feng Sihan, neither denied PHEV is a really excessive technology. The direction after PHEV, already within the public gradually clear – pure electric vehicles.
Recently, information display, a higher energy density and safer solid state battery technology, battery technology or semi-solid , mass production is expected in three to five years, and pure electric vehicles average mileage of 600 kilometers, so the mileage range, under the premise of adequate charging facilities, or pure electric vehicles will become an alternative to traditional fuel vehicles watershed .
and Volkswagen are actively preparing for this node. According to information obtained by BAO master, as of the end of 2021, Volkswagen plans to launch four electric vehicles including ID.3, ID.4 its sister models, including in China. Pure electric vehicles under the MEB will undoubtedly become the most important platform for future product strategy of the public.
Scheme in public , there are two very important goals, a Dr. Feng Sihan advocated “has become China’s new energy vehicles consumers preferred brand” vision, a goal to be carbon neutral by 2050 and Volkswagen Group planning. Both goals require mass production of more new energy vehicles, while the PHEV is important vanguard force before pure electric vehicles popular, but also pure electric vehicle after-sales open to add strength, but is a necessary means to meet Chinese double integral policy. Therefore, the “excessive” word for PHEV public is concerned, has unusual significance, but also to BAO master these two words have a deep knowledge of different dimensions.