CONTROL STRATEGY FOR AWD CONNECTION AND DISCONNECTION

The invention relates to switching between 2WD and 4WD of a vehicle. It is suggested to increase output power of an engine (106) when changing to 4WD. An AWD coupling (120) is opened, if not already open. To provide 4WD, a PTU clutch (108) is engaged once engine power has increased. The other couple...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHIMNER, CHRISTIAN, THOMAS, GROGG, JOHN, ALLEN
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The invention relates to switching between 2WD and 4WD of a vehicle. It is suggested to increase output power of an engine (106) when changing to 4WD. An AWD coupling (120) is opened, if not already open. To provide 4WD, a PTU clutch (108) is engaged once engine power has increased. The other couplers are sequentially engaged.