The all-wheel drive Volkswagen Tiguan GTE Active Concept features a petrol-electric plug-in hybrid drive to give a fuel economy figure of 75 MPGe and an electric range of up to 20 miles.
The 165 kW / 225 PS drive system of the Tiguan GTE Active Concept is a plug-in hybrid system with two electric motors and an engine, which can supply all four wheels with power.
The five-seat concept car is based on the completely redeveloped second generation of the Tiguan. It will arrive on the USA market starting in spring 2017 in a version with an even longer wheelbase and seven seats.
After starting the drive system, the concept car always drives at first as a zero emissions vehicle in the all-electric E-mode. Normally, it is driven by the rear wheels, but if there is a risk of traction loss, the front wheels are also engaged within fractions of a second. All four wheels are also activated when the driver selects 4MOTION Active Control of the all-wheel drive or off-road programmes. The Volkswagen Tiguan GTE Active Concept also then starts up in all-wheel drive and with zero emissions if the battery is sufficiently charged. The Volkswagen can cover up to 20 miles on electric power. The vehicle’s driving range (based on a battery capacity of 12.4 kWh and a 64-litre fuel tank) is 580 miles.
The Tiguan is the first SUV to be based on the modular transverse matrix (MQB). Another highlight of the concept car is its infotainment system: the Tiguan GTE Active Concept has a new generation of high-tech infotainment – with a 9.2-inch touchscreen and gesture control that has been implemented for the first time in this class.
The Volkswagen Tiguan GTE Active Concept has a turbocharged 1.4-litre gasoline direct-injection engine (TSI, 110 kW / 250 Nm) and two electric motors (front 40 kW / 220 Nm, rear 85 kW / 270 Nm). The plug-in hybrid drive (system power: 165 kW / 225 PS) can supply all four wheels with propulsive force under off-road conditions. The 4MOTION all wheel drive system boosts traction and contributes to active safety on normal roads as well.
The transmission used in the Tiguan GTE Active Concept is a 6-speed dual-clutch transmission (DSG) that was specially designed for hybrid use; the electric motor at the front is integrated into the transmission case. Other components of the 4MOTION plug-in hybrid drive, besides the motors and engine, include the lithium-ion high-voltage battery (energy capacity: 12.4 kWh) that can be charged either externally or via the TSI.
Depending on the driving programme and drive modes, the Tiguan GTE Active Concept is either driven by the rear wheels or by all four wheels. As a default, the concept car always starts off electrically in the zero-emission E-mode. If the battery is sufficiently charged, the rear electric motor powers the car by itself; now the Tiguan GTE Active Concept is a rear-wheel drive car – the TSI and the front electric motor are decoupled from the drivetrain and are shut off to save on energy. However, as soon as the driving situation demands it, or the driver manually activates a related mode, the front electric motor is also engaged in fractions of a second. The Tiguan GTE Active Concept is now a zero-emission all-wheel drive vehicle whose electric motors are supplied with energy from a lithium-ion battery. The concept car can cover up to 20 miles before the petrol engine is needed. In Emode, the Tiguan has a top speed of 70 mph or 120 km/h.
If the battery is no longer sufficiently charged, and the system requests that the electric motor on the rear axle be supplied with electricity (for dynamic handling reasons or in the Off-road program) by the front electric motor and petrol engine, the TSI is started up and engaged (Hybrid mode). In this case, the front electric motor serves as a generator for the rear electric motor.
The energy for driving the rear axle flows “by wire” and not mechanically. In Hybrid mode, the Tiguan GTE Active Concept may automatically use the TSI and/or the electric motors, depending on the energy level of the battery.
The rotary/push-button switch of the new 4MOTION Active Control unit is located on the centre console. The driver can use this control to select one of six driving programmes: Onroad (Comfort or Eco), Offroad (Rocks, Sludge & Sand or Gravel), Sport, Snow, Charge (battery is charged while driving) and Battery Hold (maintains a constant battery charge).
The E-mode and GTE mode are activated by separate buttons on the centre console. When the driver presses the E-mode or GTE-mode button a second time, the car switches back to Hybrid mode. In GTE mode, the car automatically switches to all-wheel drive.
The turbocharged petrol direct-injection engine and the electric motors work together in the GTE mode and in kickdown/boosting. This makes the full system power of 165 kW / 225 PS available – and in this case the Tiguan GTE Active Concept, with its top speed of 120 mph / 193 km/h, accelerates to 60 mph in 6.4 seconds. Depending on the given driving situation, the SUV may use the TSI by itself or switch over to the additional “Coasting” or “Regenerative braking” hybrid modes.