Figure 1? Lucid's platform layout, the battery is relatively short, and the second row has also made space avoidance.
Part? 1: Lucid's 1 13kWh battery system.
In Lucid's recent post about Lucid? There are many interesting places in the new information of the model airplane:
Figure 2? Cell profile published by Lucid
1) As can be seen from the following figure, Lucid * * has arranged 16 modules, which are similar to the earlier models? S/X or MEB layout, so making this large module of 2 1700 larger than 590 in the future is actually beneficial to layout. According to this figure, the energy of a single module is 7.06kWh, of course, the height of the module is sacrificed because of the car;
2) All modules are connected in series. Calculated by 900V, the capacity is 125Ah. According to the capacity of 4.8Ah( 1/3C), the module level is 26P 15S, and the single module voltage is 56V. The main purpose is to control at 60V? In DC, the design production line and manufacturing level can be simplified;
3) The fast charging speed design of this battery system is amazing, and the module does adopt the bottom-reinforced heat dissipation method, which makes the peak of fast charging power reach 300 kW-"increasing" 20 miles per minute. Let's calculate that the current at 900V is 333A, which is really not low.
Figure 3? Sober? Air battery module arrangement
From the charging point of view, lucid should adopt a booster system and come standard with a 19.3kW car charger. Because of the high efficiency of this car, the latest SiC drive system technology may be adopted, and we will cut into this field in detail when we have the information.
Figure 4? Lucid just slapped Taycan.
Besides, sober? Air is similar to Tesla in entertainment interaction and autonomous driving, and it is exactly the same.
Figure 5? Sober? Air system configuration
Part? 2: Extended range PK? Pure electricity
I think now in the field of high-end electric vehicles, in fact, from sports cars, C-class cars, SUVs and even future pure electric pickups, the route is very clear-the high-end ones are made of large batteries. Whether it is plug-in or extended program, only a part of consumers who are worried about security and infrastructure can please through compromise. With the appearance of 100kWh and 1 10kWh pickup trucks developed in the future, truly high-end pure electricity is really the only choice.
For the extended-range route, it seems that all the series represented by Nissan can also be connected in series to make extended-range hybrid, or the battery can be enlarged a little bit to make PHEV. Therefore, on this track, a large number of 48V, HEV and PHEV will become the power upgrade configuration of ICE, and the extended range may be a relatively high-end one.
The competition of luxury pure electric in the future is:
Hard parameters: in the three-power system, battery energy, supported charging speed and safety are indispensable. The efficiency and advancement of the drive system cannot be less.
Charging network: As mentioned earlier, large batteries should be equipped with a large charging network, which is divided into 250kW ultra-fast charging; There is also a small DC charging network with destination charging 15-20kW, which may be more suitable for popularization than three-phase AC network.
Iteration of autopilot system: Needless to say, this is the key point anyway.
Traditional first-line BMW, Mercedes-Benz and Audi? Prosche, Second-line General Motors, Ford, England and finidi will all send their flagship BEV to fight a dozen, which is untenable without high-end.
Summary: From the planning point of view, the benchmark models should also be listed under the models of new central enterprises such as Lan Tu and Hongqi. In 2020, although the number of new energy vehicles has decreased, the investment cannot be less, and the level of product strength cannot keep up. They all bite their teeth and squeeze out money to make cards.
Figure | Network and related screenshots
Author's brief introduction: Zhu Yulong, senior engineer of three electric systems and automotive electronics for electric vehicles, is the author of Hardware Design of Automotive Electronics.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.