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CN-122003331-A - Actuator device for a stabilizer of a motor vehicle

CN122003331ACN 122003331 ACN122003331 ACN 122003331ACN-122003331-A

Abstract

The invention relates to an actuator device (18) for a stabilizer (12) of a motor vehicle, comprising a first shaft (19) which is rotatably mounted about a first shaft rotational axis (21) and has a first coupling point (23) via which the first shaft (19) can be coupled to a first torsion bar (13), and a second shaft (20) which is rotatably mounted about a second shaft rotational axis (22) and has a second coupling point (24) via which the second shaft (20) can be coupled to a second torsion bar (14), wherein the shafts (19, 20) are coupled to one another by means of at least one transmission (25) having a plurality of wheels (26, 27, 28, 29) and at least two clutches (30, 31), wherein in a first operating state (32) the shafts (26, 27, 28, 29) can rotate about the shaft rotational axis (21, 22) in opposite rotational directions and in a second operating state (32) can rotate about the same rotational directions (34, 38) about the shafts (26, 29) and (34).

Inventors

  • M. Zuskik

Assignees

  • 宝马股份公司

Dates

Publication Date
20260508
Application Date
20240926
Priority Date
20231012

Claims (10)

  1. 1. An actuator device (18) for a stabilizer (12) of a motor vehicle, comprising a first shaft (19) rotatably mounted about a first shaft axis of rotation (21), which has a first coupling point (23) via which the first shaft (19) can be coupled with a first torsion bar (13) of the stabilizer (12) which is assigned to a first wheel (4) of the motor vehicle, and a second shaft (20) rotatably mounted about a second shaft axis of rotation (22), which has a second coupling point (24) via which the second shaft (20) can be coupled with a second torsion bar (14) of the stabilizer (12) which is assigned to a second wheel (7) of the motor vehicle which is spaced apart from the first wheel (4) in a vehicle transverse direction (5), Characterized in that the shafts (19, 20) are coupled to each other by at least one transmission (25) having a plurality of wheels (26, 27, 28, 29) and at least two clutches (30, 31), wherein in a first operating state (32) the shafts (26, 27, 28, 29) are rotatable about the shaft rotation axes (21, 22) in opposite rotational directions (34, 38), and in a second operating state (33) the shafts (26, 27, 28, 29) are rotatable about the shaft rotation axes (21, 22) in the same rotational direction (34).
  2. 2. Actuator device (18) according to claim 1, wherein a motor (39) is provided by means of which the shaft (26, 27, 28, 29) can be driven.
  3. 3. Actuator device according to claim 1 or 2, characterized in that a bouncing, pitching or rolling movement of the car is selectively achievable by means of the actuator device (18).
  4. 4. Actuator device (18) according to any of the preceding claims, wherein a first wheel (26) of the wheels of the transmission (25) and a second wheel (27) of the wheels of the transmission (25) are arranged coaxially to each other and rotatably supported about an axis of rotation (36).
  5. 5. Actuator device (18) according to claims 2 and 4, wherein the first shaft (19) and the first wheel (26) can be driven in opposite rotational directions (34, 35) by means of the motor (39).
  6. 6. Actuator device (18) according to claim 4 or 5, wherein a third wheel (28) of the wheels of the transmission (25) and a fourth wheel (29) of the wheels of the transmission (25) are each configured as a respective bevel gear (41), wherein the first wheel (26) and the second wheel (27) are coupled to each other by means of the bevel gear (41) and the transmission (25) has at least one bridge (42) arranged coaxially to the first wheel (26) and the second wheel (27), on which bridge the bevel gears (41) are each rotatably supported about a respective bevel gear rotation axis (43) of the respective bevel gear (41) extending perpendicularly to the rotation axis (36).
  7. 7. Actuator device (18) according to any of claims 4 to 6, wherein the first wheel (26) and the second shaft (20) are mutually coupleable and mutually decoupleable by means of a first one (30) of the clutches.
  8. 8. Actuator device (18) according to claim 7, wherein the second wheel (27) and the second shaft (20) are coupled to each other by means of a second one (31) of the clutches in a closed state (46) of the second clutch (31) and decoupled from each other in an open state (47) of the second clutch (31).
  9. 9. Actuator device (18) according to claim 7 when dependent on claim 6, wherein the bridge carrier (42) is at least indirectly coupleable with the body (2) of the motor vehicle by means of a second clutch (31) of the clutches in a closed state (46) of the second clutch (31) and is decoupleable with the body (2) in an open state (47) of the second clutch (31).
  10. 10. Actuator device (18) according to claim 8 or 9, characterized in that, -In the first operating state (32), the transmission (25) is in a first switching state (49) in which the first clutch (30) is closed, whereby the first wheel (26) and the second shaft (20) are coupled to each other by means of the first clutch (30) and the second clutch (31) is open, and/or -In the second operating state (32), the transmission (25) is in a second switching state (50) in which the first clutch (30) is open, whereby the first wheel (26) and the second shaft (20) are decoupled from each other by means of the first clutch (30) and the second clutch (31) is closed.

Description

Actuator device for a stabilizer of a motor vehicle Technical Field The present invention relates to an actuator device for a stabilizer of a motor vehicle according to the preamble of claim 1. Background DE 10 2005 013 769 B4 discloses an actuator for a split stabilizer of a motor vehicle, comprising a switchable clutch unit having an outer rotary part which is connected to the stabilizer in a rotationally fixed manner on one side, having an inner rotary part which is connected to the other stabilizer part in a rotationally fixed manner on the other side, and having a locking piston which locks the outer rotary part and the inner rotary part in a rotationally fixed manner in one position and opens in the other position for a predetermined radial torsion stroke. Disclosure of Invention The object of the present invention is to provide an actuator device for a stabilizer of a motor vehicle, so that the driving dynamics and/or the driving comfort of the motor vehicle can be improved in a particularly cost-effective manner. According to the invention, this object is achieved by an actuator device for a stabilizer of a motor vehicle having the features of claim 1. Advantageous embodiments of the invention are the subject matter of the dependent claims and the description. The invention relates to an actuator device for a vehicle, in particular for a chassis of a vehicle, in particular for a split stabilizer. The motor vehicle is, for example, in the form of a passenger car or a commercial vehicle. For example, the stabilizer has an actuator device, in particular in its fully manufactured state. For example, the chassis has an actuator device, in particular in its fully manufactured state, and has a stabilizer, in particular. For example, a motor vehicle has an actuator device, in particular in its fully manufactured state, and in particular a chassis or a stabilizer. In particular, a stabilizer is to be understood as a spring, preferably in the chassis of a motor vehicle, with the aid of which the roll angle produced during a cornering of the motor vehicle can be influenced, in particular reduced, in particular. The self-steering characteristic can be set, for example, by means of a stabilizer, in particular at large lateral accelerations. Preferably, the motor vehicle has at least one body, which is designed, for example, as a self-supporting body. The actuator device has at least one first shaft rotatably mounted about a first shaft rotation axis, in particular on the vehicle body. In other words, the first shaft is rotatable about a first shaft rotational axis, in particular with respect to the vehicle body. The first shaft has at least one first coupling point via which the first shaft can be coupled, in particular mechanically, to a first torsion bar of the stabilizer, which is assigned or is to be assigned to a first wheel of the motor vehicle, in particular in torque transmission. This means that the first axle is coupled or couplable via the first coupling point, in particular at least indirectly or directly, to a first torsion bar which is or is to be assigned to the first wheel. In other words, the first shaft is connected or connectable with the first torsion bar via the first coupling point at least indirectly or directly. For example, the first torsion bar has at least one first connection point via which the first torsion bar is coupled or couplable, in particular at least indirectly or directly, to a first wheel suspension which is designed for guiding the first wheel. This means that the first torsion bar is coupled or coupleable to the first wheel via the first connection point with the first wheel suspension being interposed, in particular with the at least one wheel guide bar and/or the at least one wheel carrier being interposed. The first torsion bar is rotatably mounted, for example, about a first torsion bar axis of rotation, in particular with respect to the vehicle body. The first torsion bar rotational axis extends, for example, parallel to the first shaft rotational axis, in particular coaxially with the first shaft rotational axis. The actuator device has at least one second shaft, which is configured in particular separately from the first shaft, and is rotatably mounted about a second shaft axis of rotation, in particular with respect to the vehicle body. In other words, the second shaft is rotatable about a second shaft rotation axis, in particular with respect to the vehicle body. The second shaft has at least one second coupling point, in particular spaced apart from the first coupling point, via which the second shaft can be coupled, in particular mechanically, in torque-transmitting and/or torque-proof manner, to a second torsion bar of the stabilizer, which is assigned or is to be assigned to a second wheel of the motor vehicle spaced apart from the first wheel in the transverse direction of the motor vehicle. This means that the second axle is coupled or coupleable via a sec