The invention relates to a drive unit (201) having a dedicated hybrid transmission (203), comprising an internal combustion engine (211) and at least one electric machine (213), which are connected to a common output shaft (263) by means of a planetary gear (241), (243). According to the invention, the planetary gear is a (reduced) linkage (221I), which is designed particularly based on a planetary carrier (233) for at least one planetary gear wheel (227), (229), for transmitting two torques (217) which flow over at least the one planetary gear wheel (227), (229). A dedicated hybrid transmission (203) can be equipped as a combined summation and differential gear, particularly having a Ravigneaux planetary gear set (221), having at least three shifting elements (269), (271), (273). According to the invention, connecting an internal combustion engine (211) to a ring gear (237) of the planetary gear (241), (243), preferably via a coupling shifting element (273), provides advantageous shifting state possibilities. The electric machine (213) can be fixed to a housing (303) via a brake (269). A method for shifting according to the invention operates with a maximum of two inserted shifting elements (269), (271), (273) per operating state, particularly for a hybrid operating state. By shifting an additional coupling between the ring gear (237) and an output gear (295), a hybrid operating state or, particularly, an eCVT state can be engaged. A purely electrical drive can be undertaken by opening all shifting elements (269), (271), (273).
DEDIZIERTES HYBRIDGETRIEBE, INSBESONDERE ALS TEIL EINES ANTRIEBSSTRANGS UND BETRIEBSWEISE EINES SOLCHEN ANTRIEBSSTRANGS
DEDICATED HYBRID TRANSMISSION, PARTICULARLY AS PART OF A DRIVE TRAIN, AND OPERATING METHOD OF SUCH A DRIVE TRAIN
TRANSMISSION HYBRIDE DÉDIÉE, NOTAMMENT DANS LE CADRE D'UNE CHAÎNE CINÉMATIQUE, ET MODE DE FONCTIONNEMENT D'UNE TELLE TRANSMISSION
2020-10-21
Patent
Electronic Resource
German
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