A no-load energy management system independently ensures, depending on the battery charge status and temperature, that there is always enough energy to start the engine. This is even the case if the vehicle is left unused for a lengthy period. Modern vehicles are constantly tapping the battery's energy even when they are not in operation. For instance, the traffic report memory, alarm system and radio remote control's receiver all constantly consume a minor amount of current. If the battery charge threatens to become critical, the energy management system reduces current consumption in the no-load status by gradually shutting down consumers. The dynamic energy management system permanently monitors the level of battery charge and the charging activity while the car is being driven. If necessary, the system marginally increases the idle speed in order to boost the alternator's charging performance. In extreme cases, very high-consumption components such as the seat or rear-window heating are temporarily shut down. Comfort does not suffer as a result - during normal vehicle operation this interruption is so brief that the driver does not even notice.
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