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Vehicle drive apparatus

A driving device and vehicle technology, applied in the transmission device, power device, electric power device, etc., can solve the problem of complicated control, the inability to immediately transmit the high torque of the electric motor to the wheels, and the inability to ensure a large transmission torque capacity of the second clutch, etc. problem, to achieve the effect of control and simplification of control

Active Publication Date: 2020-06-05
AISIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when starting the vehicle by transmitting the torque of the electric motor (5) to the wheels from the state where the second clutch (13) is released, it is necessary to control the engagement of the second clutch (13), and the control at the time of starting the vehicle is complicated. change
In addition, in the case where the second clutch (13) is hydraulically driven, the transmission torque capacity of the second clutch (13) cannot be ensured largely until the hydraulic pressure is sufficiently increased, and it may not be possible to transfer torque from the second clutch (13) when the vehicle is started. The large torque of the electric motor (5) is transmitted to the wheels immediately

Method used

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Experimental program
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no. 1 Embodiment approach 〕

[0046] A first embodiment of a vehicle drive device will be described with reference to the drawings. In addition, in the embodiment described below, the first differential gear unit 21 corresponds to a “differential gear unit”, and the case 4 corresponds to a “non-rotating member”.

[0047] In the following description, "drivably connected" refers to a state in which two rotating members are connected so as to be able to transmit a driving force (synonymous with torque), and includes a state in which the two rotating members are connected to rotate integrally. , or the two rotating members are connected to a state in which driving force can be transmitted via one or more than two transmission members. Such a transmission member includes various members that transmit rotation at the same speed or at a variable speed, and includes, for example, a shaft, a gear mechanism, a belt, a chain, and the like. In addition, as the transmission member, an engagement device that selective...

no. 2 Embodiment approach 〕

[0086] A second embodiment of a vehicle drive device will be described with reference to the drawings. In this embodiment, the specific configuration of the speed change mechanism including the first differential gear unit 21 and the second differential gear unit 22 is different from that of the first embodiment. Hereinafter, the vehicle drive device 1 of the present embodiment will be mainly described in terms of differences from the first embodiment. In addition, about the point which is not especially indicated, it is the same as that of 1st Embodiment, the same code|symbol is attached|subjected, and detailed description is abbreviate|omitted.

[0087] Such as Image 6 As shown, the first differential gear unit 21 of this embodiment is also constituted by a single pinion type planetary gear mechanism including only three rotating elements of the first rotating element E1, the second rotating element E2, and the third rotating element E3. . In this embodiment, the ring ge...

no. 3 Embodiment approach 〕

[0093] A third embodiment of a vehicle drive device will be described with reference to the drawings. In this embodiment, the specific configuration of the speed change mechanism is different from that of the first embodiment. Hereinafter, the vehicle drive device 1 of the present embodiment will be mainly described in terms of differences from the first embodiment. In addition, about the point which is not especially indicated, it is the same as that of 1st Embodiment, the same code|symbol is attached|subjected, and detailed description is abbreviate|omitted.

[0094] Such as Figure 8As shown, the vehicle drive device 1 of the present embodiment includes a differential gear unit 25 including a first rotation element E1, a second rotation element E2, a third rotation element E3, and a fourth rotation element E4. 4 rotating components. Further, the vehicle drive device 1 includes a second brake B2 as an engagement device D in addition to the first brake B1 as the friction b...

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Abstract

A vehicle drive apparatus (1) is provided with a rotary electric machine (10); an output member (3) that is drivably connected to wheels (2); and a differential gear device (21) that is provided between the rotary electric machine (10) and the output member (3). The differential gear device (21) is provided with a first rotary element (E1) that is drivably connected to the rotary electric machine(10), a second rotary element (E2) that is drivably connected to the output member (3), and a third rotary element (E3) that is selectively fixed to a non-rotary member (4) by a one-way clutch (F) switchable between a one-way regulated state and a rotation regulated state, and is selectively fixed to the non-rotary member (4) by a friction brake (B).

Description

technical field [0001] The present invention relates to a drive device for a vehicle. Background technique [0002] There is known a vehicle drive device including a rotating electric machine, an output member drivably coupled to a wheel, and a differential gear device provided in a power transmission path between the rotating electric machine and the output member. An example of such a vehicle drive device is disclosed in JP 2011-51460 A (Patent Document 1). Hereinafter, the reference numerals shown in parentheses in the description of the background art are the reference numerals of Patent Document 1. [0003] The vehicle drive control device (1) of Patent Document 1 includes an electric motor (5), a differential mechanism (9) drivably connected to the wheels, and a differential mechanism (9) provided between the electric motor (7) and the differential mechanism (9). The planetary gear mechanism (7) of the power transmission path. The vehicle drive control device (1) in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/64B60L15/20F16D41/02F16D41/08
CPCF16H3/64F16H2061/044F16H2200/0021F16H2200/2069F16H2200/2035F16H2200/0034F16H2200/2005F16H2200/2066F16H2200/2007Y02T10/72B60L15/2036B60L15/2054B60L15/2072B60L15/2009Y02T10/64B60K1/00B60K17/02B60K17/08F16D49/08F16D67/02F16H3/54F16H3/66F16H61/686F16H2200/2038F16H2200/2082
Inventor 鸟居武史加藤博岩濑拓朗中岛启甫山冈大祐
Owner AISIN CORP