Getriebe für ein Fahrzeug

Details

Veröffentlichungs-Nr.

EP4056872

Aktenzeichen

EP21162190

Anmeldetag

12. März 2021

Veröffentlichung

14. September 2022

Rechtsraum

EP

IPC

F16H3/66

Abstract

The invention relates to a transmission (1) for a vehicle (100), wherein the transmission is configured to provide nine forward gears in sequence from the first gear to the ninth gear, the transmission comprising: - a first (10) and a second (20) planetary gear set comprising a respective input (I10, I20) and output (O10, O20), wherein: - the first and second planetary gear sets (10, 20) are configured axially in series, wherein the output (O10) of one of the first and second planetary gear sets (10, 20) is drivingly connected to the input (I20) of the other one of the first and second planetary gear sets (10, 20); - each planetary gear set (10, 20) is configured to provide a first and a second forward speed reduction and one direct speed with a one to one (1:1) speed ratio, the first forward speed reduction being larger than the second forward speed reduction, thereby providing three forward speeds with different speed ratios; and - each planetary gear set (10, 20) is configured to be individually shiftable between its three forward speeds; - wherein the transmission is configured to provide: - the first to third gears by utilizing the first forward speed reduction of the second planetary gear set (20) and by alternating the three forward speeds with different speed ratios of the first planetary gear set (10); - the fourth to fifth gears by utilizing the first forward speed reduction of the first planetary gear set (10) and by alternating the second planetary gear set (20) between its second forward speed reduction and its direct speed; - the sixth to seventh gears by utilizing the second forward speed reduction of the first planetary gear set and by alternating the second planetary gear set between its second forward speed reduction and its direct speed; - the eighth to ninth gears by utilizing the direct speed of the first planetary gear set and by alternating the second planetary gear set between its second forward speed reduction and its direct speed.

Anmelder

Firma

VOLVO TRUCK CORPORATION

Land

🇸🇪 Schweden

Fachgebiete