Drive system

Starting and stopping the combustion engine in Twin Engine

Updated 1/21/2020

Starting and stopping the combustion engine in Twin Engine

An advanced control system determines the extent to which the car is driven on internal combustion engine, electric motor or both in parallel. During electric operation, the car may sometimes need to start the internal combustion engine automatically due to external circumstances, e.g. in low outside temperatures, which is completely normal. In addition, the internal combustion engine always starts when the hybrid battery reaches its lowest state of charge.

Climate settings at low temperatures

In low outside temperatures, the internal combustion engine sometimes starts automatically in order to achieve the desired passenger compartment temperature and air quality. The amount of time that the internal combustion engine runs can be affected by

  • lowering the temperature
  • reducing the fan strength
  • activating drive mode Pure.

Electric operation in low or high temperatures

In low or high outside temperatures, the car's range and output for electric operation may be reduced and affect how often the internal combustion engine is started automatically.

Emission control

To ensure that emission control operates as energy-efficiently as possible, the internal combustion engine must be run for several minutes once it has been started. The duration of the internal combustion engine's running time varies depending on the temperature of the catalytic converter.

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