TRANSMISSION SYSTEM FOR HYBRID VEHICLES

Abstract

A torque transmission device (1), particularly for a motor vehicle, comprising: - a torque input element (2) rotating about an axis (X), suitable for being rotationally coupled to a crankshaft of an internal combustion engine, - a first torque output element (3), suitable for being rotationally coupled to a first input shaft of a gearbox, - an intermediate element (5) arranged between the torque input element and the torque output element, in the direction of torque transmission, - an input clutch (10), selectively coupling the input element and the intermediate element by friction, - a first output clutch (20), selectively coupling the intermediate element and the first output element by friction, - an actuating member (40) associated with the input clutch and an actuating member (50) associated with the first output clutch, and - a bearing supporting the input element (47).characterized in that the first output clutch, the input clutch, the input clutch actuating member, and the first bearing member are arranged radially in succession.

Description

The example of Figure 2 differs from that of Figure 1 in the positioning of the second output clutch 30. The second output clutch 30 is axially offset from the first output clutch 20 and the input clutch 10. In this example, the second output clutch 30 is now radially closer to the X-axis than the first output clutch 20. In the example now considered, the actuating members 40, 50 of the first output clutch and of the input clutch are stacked radially and their actuating chambers are arranged in the transverse partition 46. 5 The electrical connection area 65 and the second clutch of output 30 are stacked radially towards the X axis. According to another aspect of the invention, a rolling member supporting the intermediate element can be arranged axially between the actuating member of the second output clutch on the one hand and the output elements 10 on the other hand.

Claims

CLAIMS 1. Device (1) for transmitting torque, in particular for a motor vehicle, comprising: - a torque input element (2) rotating about an axis (X), capable of being coupled in rotation to a crankshaft of an internal combustion engine, - a first torque output element (3), capable of being coupled in rotation to a first input shaft of a gearbox, - an intermediate element (5) arranged between the torque input element and the torque output element, in the direction of torque transmission, - an input clutch (10), selectively and frictionally coupling the input element and the intermediate element, - a first output clutch (20), selectively and frictionally coupling the intermediate element and the first output element, - an actuating member (40) associated with the input clutch and an actuating member (50) associated with the first output clutch, and - a rolling member supporting the input element (47), characterized in that the first output clutch, the input clutch, the input clutch actuating member and the first rolling member follow one another radially.

2. Device (1) according to claim 1, the first output clutch (20), the input clutch (10), the input clutch actuating member (40) and the first rolling member (47) being stacked radially towards the axis (X).

3. Device (1) according to any one of the preceding claims, the input clutch (10) and / or the first output clutch (20) comprising: - an input disc carrier (11, 21) rotationally secured to the input element for the input clutch, and rotationally secured to the intermediate element for the first output clutch, - an output disc carrier (12, 22) rotationally secured to the intermediate element for the input clutch, and rotationally secured to the first output element for the first output clutch, and - a multi-disc assembly (13, 23) comprising at least one friction disc rotationally secured to one of the input and output disc holders, at least two plates respectively arranged on either side of each friction disc, rotationally secured to the other of the input and output disc holders and friction linings arranged between the plates and a friction disc, the clutch (10, 20) describing a disengaged position and an engaged position in which said plates and the friction disc pinch the friction linings so as to transmit a torque between the input disc holder (11, 21) and the output disc holder (12, 22).

4. Device (1) according to any one of the preceding claims, the intermediate element (5) comprising an electrical connection zone (65) capable of being linked in rotation with an electrical machine rotating around an axis parallel to the axis of rotation (X), the electrical connection zone being axially offset from the input clutch and / or the first output clutch.

5. Device (1) according to any one of the preceding claims, comprising a second torque output element (4), capable of being coupled in rotation to a second input shaft of a gearbox, a second output clutch (30), selectively and frictionally coupling the intermediate element and the second output element and an actuating member (50) associated with the second output clutch, the first and second output clutches (20, 30) being stacked radially, the actuating members (50, 60) associated with the output clutches being stacked radially.

6. Device (1) according to the preceding claim, comprising a force transmission member (41, 51, 61) for each of the clutch input (10), of the first output clutch (20) and of the second output clutch (30), each force transmission member being axially movable to transmit the actuating force from the actuating member (40, 50, 60) to the associated clutch, each force transmission member (50, 60) of the output clutches being crossed by the intermediate element (5) to provide the connection zone (65).

7. Device (1) according to any one of claims 1 to 4, comprising a second torque output element (4), capable of being coupled in rotation to a second input shaft of a gearbox and a second output clutch (30), selectively and frictionally coupling the intermediate element and the second output element and an associated actuating member (50) to the second output clutch, the second output clutch being axially offset from the first output clutch, the actuating members of the first output clutch and the input clutch being stacked radially.

8. Device according to any one of claims 4 to 7, the electrical connection zone (65) and the second output clutch (30) being stacked radially towards the axis (X).

9. Device according to any one of claims 5 to 8, a rolling member supporting the intermediate element (48) being arranged axially between the actuating member (50) of the second output clutch on the one hand and the output elements on the other hand (3, 4).

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