On the pure electric track, BBA is originally brought by the BMW in front of the BMW. As early as 2011, BMW introduced a forward-looking BMW I brand. Three years later, pure electric BMW I3 and plug-in mixed BMW I8 were like a concept car to come to the world. The use is the first generation BMW EDRIVE technology. However, I brand has a brilliant beginning, but it is quickly in silence. Whether it is a 5-Series, 7 Series or X1 plugging, there is a bit shooting for the new energy path of BMW.
At the same time, Audi E-TRON and Mercedes-Benz EQC have a domestic step, quickly in the luxury pure electric SUV market. And BMW until IX3 coming with the fifth generation Edrive power driver technology, I tried to solve the urgent need of the new era. With the Shanghai Auto Show, the Pure Electric SUV BMW IX is released, and BMW seems to bring the new technology to the angle. So, this fifth generation Edrive technology, is there so much energy, can help BMW later?
High integration excitation motor, smaller size, lower power consumption 
Fuel era, BMW is always in The engine field seeks breakthrough, which seems to continue to the motor era. BMW’s fifth generation EDRIVE motor is different from the motor used in most electric vehicles on the market. It uses excitation synchronization techniques to produce a magnetic field with an additional current through the excitation coil with an additional current through the excitation coil, and unlike the permanent magnet motor itself. The most intuitive effect is to reduce the dependence on the rare earth resources of permanent magnets, achieving a more thorough environmentally, can make the motor longer at the highest speed.
The same is to bypass the dependence on the permanent magnet rare earth, Mercedes EQC and Audi E-TRON are Tesla’s past in Model S. A large amount of asynchronous induction motor is used in the model. This motor naturally has higher speeds and greater overload capabilities, there is no high temperature demagnetizationIt helps to meet the needs of vehicles in performance and high speed cruise. However, at the same power, asynchronous induction motor is larger, in the passenger car of inch inch gold, the integration of the motor is very high, and the peak efficiency is also slightly lower than the permanent magnet synchronous motor.
However, in terms of integration, the current ideas of major brands are relatively close. Take Audi E-TRON as an example, it uses the front and rear two-motor design, the rear motor uses a coaxial structure, matches the lightweight differential, the front motor is a parallel shaft structure and combines the motor and reducer in a housing. BMW fifth generation Edrive is on the previous IX3, using a single-rear motor, integrates the motor, inverter, and transmission, and the drive unit is also fused directly to the rear axis and efficiency. Therefore, in the case where the large direction of integratedization is close to, the characteristics of the motor itself determine the weight, power consumption, efficiency, and so on.
BMW Lishui, Mercedes, Audi Play Performance
For the BMW IX3, the power consumption is only 16.7kWh, with the Mercedes-Benz EQC of medium SUV, and Audi E -tron (import version) has broken through 20kwh. In addition to battery capacity, power consumption is also an important factor affecting the endurance of pure electric vehicle. BMW IX3 and Mercedes-Benz EQC two medium SUVs, NEDC battery life gaps reached 85km. 
However, under the blessing of asynchronous dual motors, Mercedes-Benz EQC has a power of 300 kW, 0-100km / h accelerates only 5.1s, Audi E -tron also has the power of the maximum 300kW, and the official 0-100km / h accelerates 5.7s. The maximum power of the single motor is only 210KW, and the official zero-hell accelerated 6.8s, which is slightly better than its own X3 fuel version. It is good to find a face, and the official claims that IX maximum power can reach approximately 370kW, zero hundred acceleration 5S in the case of being equipped with a double motor.
However, BMW IX3 Relative Mercedes-Benz EQC and Audi E-Tron are already a late generation, and then use BMW IX’s products that are not listed. It is a bit unfair. From the product characteristics, the fifth generation of EDRIVE bonds is more focused on power consumption, which is easy to bring better endurance. Of course, the battery is not just the motor, then let’s take a look at the battery factor.
Former waves, rear radiation, BMW battery density is the largest 
BMW IX3 (medium SUV) battery capacity 74kWh, NEDC endurance mileage 500km
[123 ] BMW IX (medium large SUV) battery capacity 100kwh, WLTP battery life 600km
Mercedes-Benz EQC (medium SUV) battery capacity 79.2kWh, NEDC endurance mileage 415km
Audi E-Tron (medium large SUV) Battery capacity 96.7kWh, NEDC battery 500km 
From the battery cell, BMW fifth generation EDRIVE uses NCM811 nickel-wateng-rich three-dimensional ion battery, because nickel content is the highest, so The monomer capacity capable of providing is also the largest, with IX3 as an example, its battery energy density is 154WH / kg. Audi E-TRON uses NCM622 three-dimensional lithium batteries, more cobalt can play a better stability, but the battery density is relatively low, 133WH / kg. Mercedes-Benz EQC is more cautious, its battery positive electrode material ratio is a relatively stable NCM 523, so that the battery density is also minimal, only 125WH / kg.
In fact, this is also very well understood, Mercedes-Benz EQC is the first to list, starting from the source, and the NCM622 of Audi E-TRON is also currently mainstream. Solution. As for the NCM811 program developed by BMW and Ningde Times, it belongs to future design, with high performance, lightweight, and long battery life.
Battery safety, temperature control, kinetic energy recycling, BBA sees “and” three of the security and scalability of the battery pack, BBA threeThe idea is very similar. BMW fifth generation EDRIVE battery adopts a square structure, using modular design and packaging. Take IX3 as an example, 10 modules are mounted inside the battery pack, and 188 cells can be placed. The battery tray is manufactured by forging aluminum alloy, and presidens sufficient buffer space for the battery cell module, and full surrounding hollow partition. The Audi E-Tron’s battery pack is also composed of 36 battery modules, each wrapped by an aluminum alloy shell, and then a layer of housing is set, and a pre-collision capability structure is left on both sides.
The three car companies have adopted a liquid-cooled battery temperature control system, which is also the mainstream battery temperature management method in the industry. However, the maximum charge power of Audi E-TRON can reach 150kW than the Mercedes-Benz EQC’s 90KW and 100KW of BMW IX3. So the battery temperature control system for E-Tron requires higher requirements, and the design is more complicated. This is also the reason for the 80% fast charge in E-TRON, IX3, and EQC requires 0.75 hours, know that E-TRON is the largest capacity in three vehicles.
Finally, I will talk about the energy recovery system. The fifth generation EDRIVE uses the B-stop single pedal mode to convert the kinetic energy generated during the reduction and braking into electrical energy. Even in D-gear mode, the 4-level dynamic recycling adjustment option is also available to meet the comfort of the driving personnel as much as possible. This is also unspecite with Audi, Mercedes-Benz, and E-TRON and EQC provide 3-shot energy recovery options.
Summary:
BMW fifth generation EDRIVE power drive technology arrived, with excellent endurance level and power consumption, Refreshing everyone for quot; oil modified quot; In fact, BMW has been clarified very early, and the CLAR platform is well compatible with gasoline engine, diesel engine, plugging mix, and pure electric drive form, so there is no quot; oil modified quot; this statement. There is news that future new New class platforms will continue to adopt BMW’s compatibility platform ideas.