Mercedes-Benz has released EQC, but also a lot of friends at the scraper; follow-up to this year's high probability Audi, BMW will gradually one by one to show their powertrain and very cool man-machine systems, smart driving this to us. Luxury electric car has been in the United States, Europe, and the formation of a small market segment certain first-tier cities in China, worth luxury car prices are key inputs. So we can see that these companies one by one his own engineering design, in front of us.
On the power assembly, a four-wheel drive system consisting of the front and rear dual motors has a comprehensive maximum power reaching 408 hp. The peak torque is 765 cattle, meters, 0-100km / h acceleration time is 5.1 seconds, the maximum speed of 180km / h. And the battery life, the new car equipped with a battery capacity of 80kWh, up to the maximum voltage of 408 volts, the NEDC mileage more than 450km. Compared with the concept car, the battery capacity increased 10kWh, mileage dropped by 50km.
Based on the concept vehicle, Mercedes-Benz previously said that the EQC is equipped with a 70 kWh battery pack for a range of 'up to 500 kilometers' (310 miles).
The disclosure of the battery case is uncapped, from which we can find some of the more interesting places
1) Large modular design
As shown below, the battery system 80 kWh, was divided into five modules, divided into two modules:
Unit modules 36 * 4
Unit modules 24 * 2
Total of 192 units (2P96S), if there is a schematic diagram in accordance with 2P words, the total number of batteries 384, accounting according to 3.65V, Granville 57Ah capacity monomer, the monomer level is performed by way of 4P
Take the following form of the module, a cell 24 pressurized inner end plate
The plate beneath the estimation module can also play a part of a heat radiating effect, equal to the two sides considered for heat dissipation.
2) Cooling System
Here we finally understand Benz engineers are doing, and their ideas directly to the module for cooling by the cooling plate after the top cover to do it, the entire pipeline is divided into five-way direct parallel to the last module to dissipate heat, bottom also do the heat, so you can really achieve the purpose of cooling.
3) CMU distribution
Above that place buckle, hanging CMU, there do not know why points is very small, a tube 24 CMU batteries, cell sampling channel path 6
4) the structure of the tray
Here for side impact crash structure to do a full consideration, this strength can still be pricey. Interestingly, the modules are arranged in two directions, there is no end plate and the end plate arrangement is not the same place. Module cover for the protective effect of batteries is still very obvious, so the horizontal and vertical fabric cloth behind, careful consideration is needed.
Overall, the battery current system and we know it's a little different.
Summary: This year's high-end piece of pure electric vehicles, is really very exciting, big money made out of engineering design, is still very worth a closer look. Read the full text of the original title: some details Benz EQC battery system
Article Source: [Micro Signal: QCDZSJ, WeChat Public Number: Automotive Electronic Design] Welcome to add attention! Please indicate the source of the article.
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