The ŠKODA VISION X urban crossover, celebrating its world premiere at the 2018 Geneva International Motor Show, is the first hybrid vehicle in ŠKODA’s history to have a CNG and petrol-powered engine as well as an electric motor, resulting in CO2 emissions of 89g/km.
A combustion engine has been combined with a belt-driven starter generator and an electric motor on the rear axle, which can power the vehicle by itself over short distances and it takes on a supportive boost function when pulling away. Whether on or off the road, power can be delivered to the front axle, rear axle or, if necessary, to all four wheels. In everyday traffic, the ŠKODA VISION X’s hybrid system returns a combined CO2 emissions value of 89 g/km based on the NEDC test cycle.
The concept study’s 1.5-litre G-TEC combustion engine with four cylinders and turbocharger has been specially developed for use with CNG (compressed natural gas). As well as conventionally extracted natural gas, CNG can also take the form of biogas or, with the help of green energy, synthetically produced natural gas. CNG vehicles running on conventional natural gas already emit between around 18 and 25 per cent less CO2 than a petrol-powered model with a comparable power output.
The proportion of nitrogen oxide, particulate matter and other emissions is also considerably lower than those of petrol or diesel engines. By adding biogas, CO2 emissions can be reduced further. When running on 100 per cent biogas or synthetic natural gas, CNG vehicles are CO2 neutral.
The CNG drive system delivers a power output of 96 kW (130 PS) as well as maximum torque of 200 Nm. One CNG tank can be found under the rear seat, the second one behind the rear axle. The CNG engine drives the front axle; the rear axle is powered by an electric motor. The latter is activated when necessary – to generate additional power when pulling away (boost effect) or to improve traction on slippery surfaces and off-road. The storage capacity of the electric motor’s compact battery is sufficient enough to power the concept study purely electrically for a distance of up to two kilometres.
The ŠKODA VISION X is the first ŠKODA all-wheel-drive vehicle that has no propshaft. The CNG drive is supported by two electric motors: the belt-driven starter generator of the combustion engine and a separate one on the rear axle. Combined, the combustion engine and the second motor provide continuous all-wheel drive. This second motor gets its energy from a 48-volt lithium-ion battery. Thanks to brake energy recovery, the lithium-ion battery charges while driving: when braking and coasting, the ŠKODA VISION X converts kinetic energy into electric energy and uses this energy later for driving. As is typical for electric motors, its maximum torque of 70 Nm is available immediately, which makes the car more responsive and agile when pulling away and during short bursts of speed.
In everyday traffic, the hybrid system’s operating control system ensures the most efficient collaboration possible between the combustion engine and the electric motor. The driver can select the electric driving mode, enabling the ŠKODA VISION X to continue its journey whilst producing zero emissions.
The design study can use front-wheel, rear-wheel or all-wheel drive as and when necessary. The rear-wheel drive transfers 1,000 Nm onto the road and, also thanks to an additional petrol reserve tank, the VISION X has a range of up to 650 kilometres.
The power output of the two drive units allows the ŠKODA VISION X to accelerate from 0 to 62 mph in 9.3 seconds; it has a top speed of 124 mph.