Bedienungsanleitung Cupra Ateca 2021 (Seite 304 von 354) (Englisch)

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Practical tips

If a vehicle with a conventional electrical sys-

tem is left parked for a long time, the battery

will gradually lose its charge because certain

electrical devices, such as the electronic

gearbox lock continues to draw current even

when the ignition is off. In some cases there

may not be enough power available to start

the engine.

Your vehicle is equipped with an intelligent

power management system to control the

distribution of electrical energy. This signifi-

cantly improves reliability when starting the

engine, and also prolongs the useful life of

the battery.

The main functions incorporated in the pow-

er management system are battery diagno-

sis, residual current management and dy-

namic power management.

Battery diagnosis

The battery diagnosis function constantly

registers the condition of the battery. Sen-

sors detect the battery voltage, battery cur-

rent and battery temperature. This enables

the system to calculate the current power

level and charge condition of the battery.

Residual current management

The residual current management reduces

power consumption while the vehicle is

parked. It controls the supply of power to the

various electrical devices while the ignition is

switched off. The system takes the battery

diagnosis data into consideration.

Depending on the power level of the battery,

switch off the individual electrical devices

one after the other to prevent the battery

from losing too much charge and to ensure

that the engine can be started reliably.

Dynamic power management

While the vehicle is moving, this function

distributes the available power to the various

electrical devices and systems according to

their requirements. The power management

ensures that on-board systems do not con-

sume more electrical power than the alter-

nator can supply, and thus maintains the

maximum possible battery power level.

Note

●Neither is the power management system

able to overcome the given physical limits.

Please remember that the power and use-

ful life of the battery are limited.

●If there is a risk that the vehicle may not

start, the alternator electrical failure or low

battery charge level warning lamp will be

shown 

››› page 300 .

Flat battery

Starting ability has first priority.

Short trips, city traffic and low temperatures

all place a heavy load on the battery. In these

conditions a large amount of power is con-

sumed, but only a small amount is supplied.

The situation is also critical if electrical devi-

ces are in use when the engine is not run-

ning. In this case power is consumed when

none is being generated.

In these situations you will be aware that the

power management system is intervening to

control the distribution of electrical power.

When the vehicle is parked for long peri-

ods

If you do not drive your vehicle for a period

of several days or weeks, the power manage-

ment will gradually shut off the electrical de-

vices one by one or reduce the amount of

current they are using. This limits the

amount of power consumed and helps to

ensure reliable starting even after a long pe-

riod. Some convenience functions, such as

remote vehicle opening, may not be availa-

ble under certain circumstances. These

functions will be restored when you switch

on the ignition and start the engine.

With the engine switched off

For example, if you listen to the sound sys-

tem with the engine switched off the battery

will run down.

302

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