(Keywords: special-shaped battery, 290km/h, CORSA sport mode, simulated sound)
Maserati GranCabrio Folgore is a pure electric convertible, there are many interesting design details, including specially developed technology for weight reduction and low sitting position, as well as three-motor torque vectoring control, etc., more than 1200 horsepower, so that this electric convertible acceleration ability surpasses the old V8 version, what are the technologies of GranCabrio Folgore, which are worth learning from the new domestic car manufacturers?
Driving
The GranCabrio has four different driving modes: MAX RANGE, GT, SPORT, CORSA. Let the vehicle have several completely different personalities, among which MAX RANGE is long battery life, if the battery level is less than 16%, the vehicle will prompt to turn on, just like the power saving mode, the vehicle speed will be limited to 130km/h, reduce the response of the accelerator pedal and limit the power of the motor, usually if you drive in the city, you can actually turn on this mode.
If you're on a trail or on a track, you can turn on CORSA mode to activate the full performance of the 800V architecture, with fewer electronic assists, direct throttle pedal response, three motors working out torque, torque vectoring automatically distributes torque to the left and right rear wheels, adaptive suspension damping will also increase, and the car's ground clearance will be reduced. The digital instrument cluster enters Corsa mode, highlighting relevant performance parameters, including monitoring battery temperature, torque distribution, and more.
Maserati's sound wave has always been widely acclaimed, the manufacturer also has acoustic experts, just like making musical instruments, specially designed exhaust pipes, bringing beautiful sound, after electrification, Maserati did not abandon this tradition, the sound of the motor and reducer is captured, and integrated with the sound of Maserati's traditional V8, bringing an innovative sound experience, through the internal sound and external sound playback analog sound, which is difficult to hear on other electric vehicles.
Ride
The interior of the GranCabrio is upholstered in numerous leathers and features two touch screens. The 12.3-inch central display and 8.8-inch control screen make it easier to operate, and the screen below mainly controls the air conditioning, with a simple layout and gesture control, and users can also connect to their phones via wireless Apple CarPlay and Baidu CarLife.
One of the hallmarks of Maserati's interior is the central clock, and on electric vehicles, the mechanical clock is replaced by a digital clock, the dial has three skins (classic, design and sporty) to switch onto, as well as four additional display modes (compass, gravimeter, accelerometer and stopwatch), the clock can also be connected to the mobile phone via Bluetooth, and the user can also wake up the digital clock by voice, interact with it, operate the air conditioning and navigation, etc.
Uncover the secret of low sitting position, three motors + special-shaped battery pack
As we all know, one of the problems of electric vehicles is the high sitting position, which is not obvious in SUVs, but it leads to some problems in sedans, such as small headspace, unable to place sunshades, and can only use panoramic sunroofs, like NIO's ET5 because the high sitting posture even affects the driver's vision, bringing more blind spots.
For a roadster, a low sitting position is the key to make people feel like they are sitting on the ground, so Maserati has specially designed a special frame and battery, as well as the distribution of the motor, first of all, the chassis is widely used in lightweight materials such as aluminum and magnesium, as well as high-performance steel. More than 65% of the vehicle is made of aluminium, and the convertible version is only 80 kilograms heavier than the coupé, which has to be reduced in weight in order to handle.
The GranCabrio Folgore is driven by three electric motors, one in the front and two in the rear, with a total power of more than 1,200 hp and a power density of 9.2 kW/kg, and is powered by a silicon carbide inverter derived from Formula E racing cars, which can precisely control the energy flow to the motor, solving the problem of power loss in traditional inverters.
Two fully decoupled rear motors (without transmission interconnection) can transmit torque to the wheels independently, giving torque vectoring the ability to distribute torque to the car, and for electric vehicles over 1,000 horsepower, it can adjust the yaw angle of the car not only when accelerating, but also when releasing the pedal and braking, working in a similar way to a complex electronically controlled differential, which can make driving easier.
Depending on the shape of the frame, the battery also has an innovative layout that controls the height of the vehicle at 1353 mm, without affecting its sporty characteristics. The shape of the battery pack is called the "T-bone", which represents Maserati's uncompromising sitting position for the electric car, avoiding placing the battery module under the seat, and the entire battery pack is spread out around the central tunnel, which not only sits low, but also reduces the vehicle's inertial resistance, especially when cornering, the vehicle can be found to be more agile, and the weight of the battery is kept in the center of the car from both a vertical and horizontal point of view.
Produced by the Mirafiori Battery Hub assembly plant in Turin, the battery has a nominal capacity of 92.5 degrees and a discharge capacity of 610 kW, and the efficient discharge capability means that the power of the motor can be fully utilized, and the two motors on the left and right of the rear axle can provide more than 400 horsepower to the wheels, whether it is acceleration ability or top speed, reaching new heights for open-top electric vehicles, which can break 100 in about 3 seconds. The vehicle can reach a speed of 290 km/h.
Car selection detective point of view: Maserati keeps up with the pace of new car-making forces, and the skeleton-like battery solves the pain points of electric vehicles through irregular design, with a power of more than 1200 horsepower to reach the level of a supercar, but the disadvantage is that the battery life is short, the WLTC working condition is only 450 kilometers, and the customized battery design increases the cost and the price is high, the price of the domestic GT hard top version reaches 1.988 million, and the convertible version may exceed 2 million. What do you think of Maserati's electric car?