In a drive unit (10) of an adjuster (80) in a vehicle, having at least one particularly electronically commutated motor (12) and at least one gear stage (14) provided on the output side of the motor (12), the gear stage (14) is designed as a differential gear, which by making use of two different sp
In a drive unit (10) of an adjuster (80) in a vehicle, having at least one particularly electronically commutated motor (12) and at least one gear stage (14) provided on the output side of the motor (12), the gear stage (14) is designed as a differential gear, which by making use of two different speeds and/or directions of rotation causes a movement of an output (54) around an axis (A).
대표청구항▼
What is claimed is: 1. A drive unit of an adjuster for a vehicle, the drive unit comprising: an electronically commutated motor including at least (a) a stator, and (b) a rotor configured for rotating in response to the rotor interacting magnetically with the stator; and a switchable planetary dif
What is claimed is: 1. A drive unit of an adjuster for a vehicle, the drive unit comprising: an electronically commutated motor including at least (a) a stator, and (b) a rotor configured for rotating in response to the rotor interacting magnetically with the stator; and a switchable planetary differential gear, wherein the rotor is borne by the switchable planetary differential gear, the switchable planetary differential gear is a friction-wheel type of gear stage that includes rollers, and each of the rollers is independently selected from the group consisting of solid rollers and hollow rollers, the switchable planetary differential gear and the motor are cooperatively associated with one another at least for making use of at least one difference to provide rotation of an output component of the switchable planetary differential gear about an axis, the at least one difference is selected from the group consisting of a difference in speed of rotation and a difference in direction of rotation, the switchable planetary differential gear is operative at least so that at least two different features of the switchable planetary differential gear can be switchably locked, and each of the at least two different features is independently selected from the group consisting of outer rings of the switchable planetary differential gear and sun wheels of the switchable planetary differential gear. 2. The drive unit according to claim 1, wherein gear ratios of the switchable planetary differential gear are selectable by the switchable locking. 3. The drive unit according to claim 1, wherein each of the at least two different features is selected from the group consisting of the outer rings of the switchable planetary differential gear. 4. The drive unit according to claim 1, wherein: the switchable planetary differential gear is at least a single-stage differential gear; the rollers comprise at least one set of planet rollers; and the differential gear includes at least a sun wheel, and an outer ring. 5. The drive unit according to one claim 4, wherein the outer ring comprises an elastic metal ring and an elastomer bed, wherein the elastomer bed is in receipt of the elastic metal ring. 6. The drive unit according to claim 4, wherein: the sun wheel is a first sun wheel; the switchable planetary differential gear includes a second sun wheel; and with respect to the axis, the first sun wheel and the second sun wheel are axially adjacently arranged with respect to one another. 7. The drive unit according to claim 4, wherein: the outer ring is a first outer ring; the switchable planetary differential gear includes a second outer ring; and with respect to the axis, the first outer ring and the second outer ring are axially adjacently arranged with respect to one another. 8. The drive unit according to claim 4, wherein: the sun wheel is a first sun wheel; the switchable planetary differential gear includes a second sun wheel; there is at least one difference between the first sun wheel and the second sun wheel; and the at least one difference between the first sun wheel and the second sun wheel is selected from the group consisting of the first sun wheel and the second sun wheel having different outer diameters, and the first sun wheel and the second sun wheel having different elasticities. 9. The drive unit according to claim 4, wherein: the outer ring is a first outer ring; the switchable planetary differential gear includes a second outer ring; there is at least one difference between the first outer ring and the second outer ring, and the at least one difference between the first outer ring and the second outer ring is selected from the group consisting of the first outer ring and the second outer ring having different inner diameters, and the first outer ring and the second outer ring having different elasticities. 10. The drive unit according to one claim 4, wherein the outer ring is at least partially embedded in an elastomer bed. 11. The drive unit according to claim 4, wherein the planet rollers are unstepped. 12. The drive unit according to claim 4, wherein: the rotor is a first rotor; the motor further includes a second rotor configured for rotating in response to the second rotor interacting magnetically with the stator; the sun wheel is rigidly connected to the first rotor for rotating with the first rotor; and the outer ring is rigidly connected to the second rotor for rotating with the second rotor. 13. The drive unit according to claim 12, wherein the output component comprises a planetary carrier of the switchable planetary differential gear, and the planetary carrier carries the set of planet rollers. 14. The drive unit according to claim 12, wherein the outer ring is a planetary carrier that carries the set of planet rollers. 15. A drive unit of an adjuster for a vehicle, the drive unit comprising: an electronically commutated motor including at least (a) a stator, and (b) a rotor configured for rotating in response to the rotor interacting magnetically with the stator; and a differential gear that is a friction-wheel type of gear stage that includes rollers, wherein each of the rollers is independently selected from the group consisting of solid rollers and hollow rollers, the rollers comprise at least one set of planet rollers, the rotor is borne by the differential gear, the differential gear is at least a single-stage differential gear, the differential gear includes at least a sun wheel and a first outer ring, the first outer ring is operatively connected to the stator so that any rotation of the first outer ring relative to the stator is restricted, the differential gear and the motor are cooperatively associated with one another at least for making use of at least one difference to provide rotation of an output component of the differential gear about an axis, the at least one difference is selected from the group consisting of a difference in speed of rotation and a difference in direction of rotation, the output component of the differential gear is a second outer ring, there is at least one difference between the first outer ring and the second outer ring, the at least one difference between the first outer ring and the second outer ring is selected from the group consisting of the first outer ring and the second outer ring having different inner diameters, and the first outer ring and the second outer ring having different elasticities, and with respect to the axis, the first outer ring and the second outer ring are axially adjacently arranged with respect to one another. 16. The drive unit according to claim 15, wherein the planetary differential gear is a switchable planetary differential gear that is operative at least so that: at least two different features of the switchable planetary differential gear can be switchably locked, and each of the at least two different features is independently selected from the group consisting of outer rings of the switchable planetary differential gear and sun wheels of the switchable planetary differential gear. 17. A drive unit of an adjuster for a vehicle, the drive unit comprising: a electronically commutated motor including at least (a) a stator, and (b) a rotor configured for rotating in response to the rotor interacting magnetically with the stator; and a switchable planetary differential gear, wherein the switchable planetary differential gear is a friction-wheel type of gear stage that includes at least (a) rollers, and each of the rollers is independently selected from the group consisting of solid rollers and hollow rollers, (b) a sun wheel rigidly connected to the rotor for rotating with the rotor, (c) a first outer ring, wherein the first outer ring is locked during a first mode of operation of the switchable planetary differential gear so that any rotation of first outer ring relative to the stator is restricted during the first mode of operation, and wherein the first outer ring is unlocked during a second mode of operation of the switchable planetary differential gear so that the first outer ring rotates relative to the stator during the second mode of operation, (d) a second outer ring, wherein the second outer ring is locked during the second mode of operation so that any rotation of the second outer ring relative to the stator is restricted during the second mode of operation, and wherein the second outer ring is unlocked during the first mode of operation so that the second outer ring rotates relative to the stator during the first mode of operation, and (e) a third outer ring, the third outer ring rotating about an axis in response to rotation of the sun wheel during the first mode of operation, the third outer ring rotating about the axis in response to rotation of the sun wheel during the second mode of operation, and the rotating of the third outer ring about the axis in response to rotation of the sun wheel during the first mode of operation being different from the rotating of the third outer ring about the axis in response to rotation of the sun wheel during the second mode of operation. 18. The drive unit according to claim 17, wherein the rotor is borne by the switchable planetary differential gear. 19. The drive unit according to claim 17, wherein: the rotating of the third outer ring about the axis in response to rotation of the sun wheel during the first mode of operation comprises the third outer ring rotating at a first ratio with respect to the rotor; the rotating of the third outer ring about the axis in response to rotation of the sun wheel during the second mode of operation comprises the third outer ring rotating at a second ratio with respect to the rotor; and the first ratio is different from the second ratio. 20. The drive unit according to claim 17, wherein: the rotating of the third outer ring about the axis in response to rotation of the sun wheel during the first mode of operation comprises the third outer ring rotating in a first direction; the rotating of the third outer ring about the axis in response to rotation of the sun wheel during the second mode of operation comprises the third outer ring rotating in a second direction; and the first direction is opposite from the second direction. 21. An apparatus for adjusting a component of a vehicle, the apparatus comprising: an electronically commutated motor including at least (a) a stator, and (b) a rotor configured for rotating in response to the rotor interacting magnetically with the stator; a switchable planetary differential gear including at least (a) a first component selected from the group consisting of a sun wheel and a sun gear, wherein the first component is rigidly connected to the rotor for rotating with the rotor, (b) a second component selected from the group consisting of a first outer ring and a first hollow gear, wherein the second component is locked during a first mode of operation of the switchable planetary differential gear so that any rotation of the second component relative to the stator is restricted during the first mode of operation, and wherein the second component is unlocked during a second mode of operation of the switchable planetary differential gear so that the second component rotates relative to the stator during the second mode of operation, (c) a third component selected from the group consisting of a second outer ring and a second hollow gear, wherein the third component is locked during the second mode of operation so that any rotation of the third component relative to the stator is restricted during the second mode of operation, and wherein the third component is unlocked during the first mode of operation so that the third component rotates relative to the stator during the first mode of operation, and (d) a fourth component selected from the group consisting of a third outer ring and a third hollow gear, the fourth component rotating about an axis in response to rotation of the first component during the first mode of operation, the fourth component rotating about the axis in response to rotation of the first component during the second mode of operation, and the rotating of the fourth component about the axis in response to rotation of the first component during the first mode of operation being different from the rotating of the fourth component about the axis in response to rotation of the first component during the second mode of operation; and an adjuster operatively connected to the fourth component for being driven by the fourth component. 22. The apparatus according to claim 21, wherein: the rotating of the fourth component about the axis in response to rotation of the first component during the first mode of operation comprises the fourth component rotating in a first direction; the rotating of the fourth component about the axis in response to rotation of the first component during the second mode of operation comprises the fourth component rotating in a second direction during the second mode of operation; and the first direction is opposite from the second direction. 23. The drive unit according to claim 21, wherein: the switchable planetary differential gear is a switchable toothed wheel planetary differential gear; the first component is the sun gear; the sun gear is toothed; the second component is the first hollow gear; the first hollow gear is toothed; the third component is the second hollow gear; the second hollow gear is toothed; the fourth component is the third hollow gear; and the third hollow gear is toothed. 24. A drive unit of an adjuster for a vehicle, the drive unit comprising: an electronically commutated motor including at least (a) a stator, and (b) a rotor configured for rotating in response to the rotor interacting magnetically with the stator; and a differential gear that is a friction-wheel type of gear stage that includes rollers, wherein each of the rollers is independently selected from the group consisting of solid rollers and hollow rollers, the rollers comprise at least one set of planet rollers, the rotor is borne by the differential gear, the differential gear is at least a single-stage differential gear, the differential gear includes at least a sun wheel and a first outer ring, the sun wheel is rigidly connected to the rotor, the first outer ring is operatively connected to the stator so that any rotation of the first outer ring relative to the stator is restricted, the differential gear and the motor are cooperatively associated with one another at least for making use of at least one difference to provide rotation of an output component of the differential gear about an axis, the output component of the differential gear is a second outer ring, and the at least one difference is selected from the group consisting of a difference in speed of rotation and a difference in direction of rotation.
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이 특허에 인용된 특허 (30)
Wittig Werner (Winnweiler DEX), Adjustment device for seats.
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