BMW's first pure electric vehicle i3 was launched as early as 2013, the car carefully detailed it, the battery after several upgrades, the endurance increased from the earliest 130km to 260km; eight years later BMW finally launched the second large-scale electric vehicle iX, combining modern, simple and robotic design elements in one, adding an important member to the Ashkenazi brand electric vehicle camp. The iX, which was manufactured at the 5th, 7th and 8th Series at the Dingolfing plant in Germany, was the first model to feature BMW's new variable-ratio modular chassis designed for electric vehicles, with an aluminum frame and a casing material containing plastic, aluminum, high-tensile steel and CFRP carbon fiber reinforced plastic, the latter forming a sturdy passenger compartment called CarbonCage.
It evolved from the experience of the i3's LifeModule, i8 frame, and 7 Series CarbonCore. Used for the side, front beam, roof and rear window frames, its presence can be seen by opening the tailgate in addition to the exposed carbon fibre material from the sill when the door is opened. The front is suspended by a double rocker arm, and the battery placed in the middle of the floor is protected by an aluminum frame and a base plate, which strengthens the hardness of the chassis and also brings accurate steering reaction; the rear is a five-link suspension that is designed for electric vehicles, and the bottom of the shock absorber is connected to the Camber arm bar, which reduces the height of the rear axle, which is conducive to increasing the luggage space.
The iX, which is about the same length and width as the X5, is close to the X6 with a wheelbase of 3000mm, and is larger than the Heiji EQC, similar to the Audi etron. Like the body design of the future car in the science fiction movie, there is a square silhouette, a square wheel arch, a black decoration of the C-pillar similar to the i3, and a black edge surround on the lower body. The head and tail lights, which are so flat that they can no longer be flattened, have eyes like treacherous horned robots, and the daytime lights have two strips of light that resemble eyebrows. The unsized ghost mask cover contains lenses, radars and other detectors of the safety and assistance system, and the mask is made of scratch-resistant material that is automatically repaired after 5 minutes of warm wind blowing or 24 hours at room temperature. The windowless frame door, which was previously only available in Coupes, is the first of its kind in BMW SAV, and the door has three layers of rubber-edged soundproofing.
The shape of the window greenhouse, concealed door handles, slim door side mirrors, front air outlet curtains and other spoiler designs, in exchange for the low wind resistance value Cd0.25 factory said to increase the endurance by 65km. There is a second set of tail lights on the inside of the rear of the car, which can be seen by others even if the tail door is opened, improving safety at night. The test-driven iX body is equipped with sports packaging, with a large triangle front left and right AirCurtains air intakes, glossy black lower body circumferences and door handles, body color front and rear pump handle chin, blue front brake calipers, and a smoky gray rear lampshade.
The iX series has xDrive50 and the xDrive40 model (followed by a 600 hp iXM60), the former has an output of 523 hp/765 Nm, a battery capacity of 105 kWh, and a range of 549,630 km, the front Moda has an output of 190 kW, the rear Moda has a total output of 240 kW (326 hp)/630 Nm, using a 71 kWh battery, providing 372425 km of endurance. The fifth generation of the eDrive drive system, synchronous motor is developed by BMW itself, the rotor (Rotor) is excited by current rather than magnet, it is said that the energy density is higher, the agonism response is more accurate, and there is no need to use the rare earths needed to make the magnet parts.
Batteries with 40% higher energy density than i3, xDrive40 with 11kW wall mounting machine charging takes 8 hours to fully charge, 150kW fast charging 10 minutes feasible 95km, 31 minutes up to 80% full, battery has 8 years or 160,000km maintenance. The tracking system integrated with the Motor Management System eliminates the circuitry that the traditional DSC system has to go through, greatly reducing the reaction time and allowing the tires to idling when moving the Mode. The rear mod on the rear axle subframe has a shock insulation. The braking system combines braking, power assist and other braking functions, and the braking pressure is generated by an electric starter to provide a uniform foot feel when charging on wet circuits, high temperatures, and deceleration.
The shock absorber has two oil circuits, the main oil circuit provides basic comfort and anti-seismic performance, the second oil path flap will drop the inner cylinder to increase the shock absorption hardness when the suspension stroke is increased, the front shock only hardens when it rebounds, and the rear shock only has when it is compressed. For the first time, the steering system has a feel of speed and slowness, and the IntegralActiveSteering rear steering is available as an additional price. This time the new car has a space capsule plus living room feeling of the carriage design, using the current everyone sought after the multi-screen, less button layout, a large piece of borderless curved screen on the tilting table table, the screen using anti-reflective glass, slightly inclined to the driver, the steering wheel is octagonal.
The new Generation Operation8 screen system, with a new design pattern, can speak voice control this system, while the navigation, charging and parking facilities use cloud maps, updated every minute. The door walls are separated by beveled lines between different colors and materials. The cabin tones and materials are the loft, Suite, and the standard style atelier seen with the same name as the i3, which is made of X-shaped stitched breathable seat leather and can be selected in white or black in addition to brown leather. The newly designed headrest front seat features a horn hidden inside the headrest and lumbar cushion, two USBC plugs on the back and hooks that can be attached to or tablets. The double-decker midswitch between the front seats has the mouse control keys and band selection of the screen system above, and the lower layer has a cup holder, mobile phone charging cradle, 12V plug and two USBC plugs.
The crystal-like band selection system and the chair on the door wall are quite exquisite. There are fiber optic cables next to the doors, green lights when charging and locking doors, and red lights when there are cars opening doors. The rear terrace without the middle bridge, coupled with the bench that extends to the door, brings the living room-like riding space and feeling. The four-zone air-conditioning system has a nanofiber filter that can isolate particles and sensitization sources, and has preheating and pre-purification functions. The middle layer of the standard glass roof is sandwiched with a film using PDLC (PolymerDispersed Liquid Crystal) liquid crystal polymerization technology, which can be ordered by ceiling system by current change crystals, changing it from transparent to opaque.
As we said, electric vehicles do not have any acceleration, wave response to speak of, all quietly and comfortably step on it, but instead change to pay attention to other control things and screen displays arranged by designers. The iXxDrive 400 to 100 km/h acceleration takes 6.1 seconds (xDrive50 takes 4.6 seconds), which is similar to the Heiji EQS450+, which is not super fast from today's point of view, but as we said, the big and heavy electric car does not need to be too fast, which is a reasonable acceleration performance.
The car is not light, there are 2440kg (X5 weight 2135kg, X62130kg, Audi etron 2565kg, Heiji EQC2495kg), but surprisingly there is no feeling of dragging mud and water on the curve, very cool, it can be said that it is similar to the general electric oil SUV of the same volume. The AcousticPedestrian ProjectSystem broadcasts the sound to passers-by through the external horn below 21 km/h, and the IntegratedSoundElectric broadcast to the passengers in the car, and the combined engine sound is broadcast according to acceleration and mobile game charging.
Driving modes include Personal, Sport and Eficient to change the door response, suspension soft and hard, steering wheel weight, atmosphere lighting, and chair backpack body amplitude, the power-saving Eficient has a slower acceleration response, the atmosphere lights become blue, DriveSound is quieter, and the EficientTrainer on the screen will provide tips for electricity; the instrument display becomes orange when exercising, the DriveSound becomes larger, and the back of the chair is more wrapped. Diamond-shaped gauge pattern, mainly speed and energy meter, no main body variable, only with DriveModes discoloration.
Driving an electric car, I personally look forward to the power feedback response when slowing down the speed, iX has a D wave Adaptive automatic, which can automatically change the degree of slowing down according to satellite navigation, which is enough for lazy people, when the band is turned to B, there are high, Moderate and Low three kinds of slowing reaction, but the biggest block is to find out from the screen, so it is more convenient to set personal preferences in advance. Standard features such as CollisionWarning automatic braking, Evasive Assistant automatic torsional collision avoidance and LDW yaw shock warning are likely to be used during driving.
The safety system also has a front and rear Crossroad Warning trail out of the road with automatic braking, blind spot with car warning, ExitWarning door warning. The newly added navigation system with Augmented RealityVideo can put the guiding arrow on the virtual street image, and the HUD projection meter will pop up the navigation screen from the ordinary display speed every time in the busy road section where the driving route needs to be selected. The latest version of parking Assistant Parking, in addition to finding S and L-shaped parking spaces, automatic twisting, oil pedaling, braking, and rotating, is now automatically driven out, and can be used to head or tail into the L-shaped position.