A three-speed gearbox assembly for an electric drive vehicle includes three planetary gear sets. A first clutch selectively couples the electric motor output to a second portion of the first planetary gear set, a second clutch selectively grounds the second portion of the first planetary gear set, and a third clutch selectively grounds a portion of the third planetary gear set. A fourth clutch is selectively engaged to lock first and second axle shafts to provide a locked differential function. The gearbox assembly is selectively switchable between (i) a first gear where the second and third clutches are engaged and the first and fourth clutches are disengaged, (ii) a second gear where first and third clutches are engaged and the second and fourth clutches are disengaged, and (iii) a third gear where second and fourth clutches are engaged and the first and third clutches are disengaged.
Gearbox for electric vehicle
17.09.2024
Patent
Elektronische Ressource
Englisch
Gearbox special for hybrid electric vehicle and hybrid electric vehicle with gearbox
Europäisches Patentamt | 2022
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