Dedicated hybrid transmission, particularly as part of a drive train, and operating method of such a drive train
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A transmission device and transmission ratio technology, which is applied in the field of special hybrid transmission device and drive unit
Pending Publication Date: 2020-10-23
浩夫尔动力总成慕尼黑有限公司
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That is, in general, a hybrid drivetrain is considered an advantageous drivetrain in motor vehicles, but the drivetrains known so far have not fully exploited their potential (theoretically achievable according to professional discussions)
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[0142] The different exemplary embodiments are based on identical, identical or at least similar subjects, components, parts, components and parts, so that the individual parts, components, parts, components and objects between the different embodiments are numbered with reference numbers increased by 200 respectively. The descriptions and explanations of the individual subjects, components, parts, components and parts can be transferred from one embodiment (if necessary in an adapted form) to another embodiment by transferring the respective Reference numbers are raised or lowered by the corresponding multiple of 200. In other words, many of the explanations of one of the first exemplary embodiments can also be transferred to the presently presented exemplary embodiment, so that for reasons of a more compact and clear description, only specific aspects are in each case described for the latter exemplary embodiments , but the general description can likewise be transferred (wi...
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Abstract
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 toa 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).
Description
technical field [0001] The invention relates to a drive unit with a dedicated hybrid transmission, in which drive torque can be transmitted selectively by an internal combustion engine and by at least one electric machine into a drive shaft. [0002] Furthermore, the invention relates to a special hybrid transmission which can be installed, in particular, in a drive unit with two or more power sources. [0003] Furthermore, the invention relates to a method for switching a dedicated hybrid transmission between different operating states. [0004] In other words, the invention relates to a drive unit according to the preamble of claim 1 . [0005] The invention relates to a dedicated hybrid transmission according to the preamble of claim 13 . [0006] Furthermore, the invention relates to a method for switching according to the preamble of claim 15 . Background technique [0007] According to a representative view in automobile construction, a "dedicated hybrid transmissio...
Claims
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