An electric drive motor for every axle. The all-wheel drive in the ID.4 GTX has been built with a brand new layout. It consists of two electric drive motors, which power the rear and front wheels via a 1-speed gearbox. Unlike a conventional all-wheel drive system, there is no mechanical link between the axles, which is why there is no central tunnel in the vehicle interior.
From 0 to 100 km/h in 6.2 seconds. The two electric motors are compact and lightweight. The rear axle is fitted with a permanent magnet synchro machine (PSM) with an output of 150 kW (204 PS) and a high degree of efficiency. An asynchronous motor (ASM) is mounted on the front axle. Together, the two electric drive motors emit a maximum output of 220 kW (299 PS). As result, the flagship model in the ID.4 product line is able to accelerate from 0 to 60 km/h in 3.2 seconds and from 0 to 100 km/h in 6.2 seconds. The vehicle’s top speed is electronically limited to 180 km/h. Over 100 km, the ID.4 GTX consumes 19.1 to 18.1 kWh of energy according to the NEDC cycle.
Efficient and dynamic all-wheel strategy. The ID.4 GTX’s all-wheel strategy is based on an intelligent control system. It determines how the available drive torque is distributed to the two electric drive motors to achieve the ideal balance of efficiency, dynamics and ride stability. In many driving situations, only the PSM on the rear axle alone is able to power the vehicle all by itself. The ASM on the front axle is not activated to suit the situation until a sporty driving style is in order or increased traction is required – and even then it is activated in the space of just a few milliseconds and in such a smooth way that the driver will not even notice.
Intelligent brake energy recuperation. The brake energy recuperation concept is an important factor in efficient driving. The driver uses the gear selector lever to decide whether the ID.4 GTX should coast freely or recover energy as soon as they lift their foot off the brake. If the D (Drive) position is engaged, the car will then coast in most situations, while the electric drive motors rotate with almost zero load. In the B (Brake) position, the motors act as generators, feeding power back into the battery. Depending on the driver’s preference, the Eco Assistance system can manage the coasting and recuperation processes as soon as the vehicle approaches an area with a reduced speed limit. To do this, the system uses information including navigation and topography data.
Up to 0.3 g of energy recovered. In many gentle to moderate braking processes, the efficient PSM on the rear axle assumes sole responsibility for the deceleration process, though the ASM also supports energy recovery in some situations. The ID.4 GTX can brake electrically up to a deceleration rate of around 0.3 g, while recovering energy at the same time. Once the deceleration rate rises above this threshold, then the hydraulic wheel brakes come into play – a transition that goes almost completely unnoticed. The brake discs on the front axle have a diameter of 358 millimetres; the rear wheels use extra low-wear and low-maintenance drum brakes.
Sporty by nature. The ID.4 GTX is an athletic all-rounder that is easy to drive. Its lithium-ion battery, which is located between the axles under the passenger compartment, lowers the centre of gravity and ensures equal distribution of the axle loads. With its strong traction and the 17 centimetres of ground clearance, Volkswagen’s electric SUV even feels at home on light off-road terrain. The striking design of its wheels is part of the aerodynamic concept. The top-of-the-range model is equipped with 20-inch wheels with the exclusive Ystad design as standard, while the 21-inch Narvik wheels are available as an option. The tyres are 235 millimetres wide on the front axle, and 255 millimetres on the rear axle.
Five driving profiles. The running gear emphasises the sporty nature of the ID.4 GTX with its connected intelligence. Using the standard driving profile selection function, the driver can change the way the electric drive motors, regulated shock absorbers (optional) and steering system respond, and can choose between the Eco, Comfort, Sport, Individual and Traction profiles. The optional Sports package contains a sports running gear with a body lowered by 15 millimetres and progressive steering. The further the steering wheel is turned, the more direct the steering ratio becomes.
Optional adaptive shock absorbers. With the Sports Plus package, the ID.4 GTX is equipped with both progressive steering and DCC adaptive chassis control. This manages the shock absorbers and extends the already broad gambit between comfort and sportiness even further. The Vehicle Dynamics Manager (standard) connects the DCC with the XDS electronic differential lock and manages their interaction with maximum precision. What’s more, it works closely with the all-wheel drive control as well as the braking and drive control systems. This ensures that driving dynamics and stability reach the best possible level in every situation.