Antriebsstrangsystem und Verfahren zur Steuerung eines Antriebsstrangsystems eines Fahrzeugs

Details

Veröffentlichungs-Nr.

EP4660032

Aktenzeichen

EP24180685

Anmeldetag

7. Juni 2024

Veröffentlichung

10. Dezember 2025

Rechtsraum

EP

IPC

B60W10/02B60K17/36B60W10/06B60W10/10B60W30/18B60W50/00B60W50/04

Abstract

The present disclosure relates to a powertrain system (11) oof a vehicle (10), the powertrain system comprising: a tandem drive axle system (60) and an internal combustion engine (12) configured to provide power to the tandem drive axle system (60) via a transmission (17), the tandem drive axle system having a first drive axle (62) and a second drive axle (64), and further controllable to a disengaged state, in which the second drive axle is disengaged relative to the first drive axle, allowing drive wheels of the second drive axle to free-roll, the powertrain system being operable in a number of operational modes comprising at least an engine stop freewheeling mode (ES-FM), in which an output shaft of the engine is non-rotating, and the engine is disconnected from the drive wheels; wherein the powertrain system further comprises a controller (100) comprising processing circuitry (102) configured to: predict an opportunity for operating the powertrain system in the freewheeling mode; determine to disengage the tandem drive axle system in response to the predicted opportunity for operating the powertrain system in the freewheeling mode; and control the tandem drive axle system to the disengaged state; and control the powertrain system into the freewheeling mode.

Anmelder

Firma

VOLVO TRUCK CORPORATION

Land

🇸🇪 Schweden

Fachgebiete