Drive systems
Volvo Twin Engine combines a combustion engine for the front wheels and an electric motor for the rear wheels.
Two drive systems
Depending on the selected drive mode and power available in the electric motor, the drive systems can either be used separately or in tandem.
The electric motor gets its energy from a hybrid battery located under the tunnel console. The hybrid can be charged from a wall outlet or in a special charging station. The combustion engine can also charge the hybrid battery using a special high-voltage generator.
Both the combustion engine and the electric motor can generate power directly to the wheels. An advanced control system coordinates both the drive systems to help optimize driving economy.
Hybrid battery - The hybrid battery's function is to store electrical current. This energy is provided by plugging the charging cable into an electrical outlet, through regenerative braking or from the high-voltage generator. This provides current to power the electric motor and to temporarily power the electrical air conditioning to precondition the passenger compartment.
Combustion engine - The combustion engine starts when the charge level in the hybrid battery is too low to provide the power output requested by the driver.
High-voltage generator1 - Charges the hybrid battery. Starter for the combustion engine. Can provide the combustion engine with extra electrical current.
Electric motor - Powers the vehicle using electricity. Can provide extra torque and power during acceleration. Provides electrical all-wheel drive functionality. Regenerates braking energy into electrical current.