# US 12,109,890 B2 · Motor vehicle, in particular a utility vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,890 B2 - Document ID: US12109890B2 - Status: Granted - Kind: B2 - Application number: 18/558,660 - Filed: 2022-05-02 - Published: 2024-07-11 - Granted: 2024-10-08 - Earliest claimed: 2021-05-03 - Assignees: Daimler Truck AG - Applicants: Daimler Truck AG - Inventors: Guenter Kayran - Web page: https://patentgrep.com/patent/US12109890B2 ## CPC - B60K 1/00: Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) - B60K 6/365: with the gears having orbital motion - B60K 17/02: characterised by arrangement, location, or kind of clutch - B60K 17/06: of change-speed gearing (B60K17/10 - B60K17/16 take precedence) - B60K 17/08: of mechanical type - B60K 17/165: {provided between independent half axles (B60K17/18, B60K17/20 take precedence)} - B60K 2001/001: {one motor mounted on a propulsion axle for rotating right and left wheels of this axle} - B60Y 2400/73: Planetary gearings - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A motor vehicle has a steerable first axle, a driveable second axle, an electric drive for driving the second axle, and a traction battery via which the electric drive can be provided with electrical energy stored in the traction battery. The electric drive has a housing, an electric motor, which has a stator and a rotor that can be rotated around a rotor axis relative to the stator and relative to the housing, and a first planetary gear set arranged coaxially with the rotor axis. The first planetary gear set has a first element, a second element, and a third element. ## Claims ### Claim 1 A motor vehicle (10), comprising: a steerable first axle (12); a drivable second axle (20); an electric drive (26) for driving the second axle (20); and a traction battery (28), wherein the electric drive (26) is providable with electrical energy stored in the traction battery (28) via the traction battery (28); wherein the electric drive (26) has: a housing (28); an electric motor (30) which has a stator (32) and a rotor (34) that is rotatable around a rotor axis (38) relative to the stator (32) and relative to the housing (28); a first planetary gear set (42) arranged coaxially with the rotor axis (38), wherein the first planetary gear set (42) has a first element, a second element, and a third element; and a second planetary gear set (52) arranged coaxially with the rotor axis (38), wherein the second planetary gear set (52) has a fourth element, a fifth element, and a sixth element, wherein in an axial direction of the rotor (34), the electric motor (30), the first planetary gear set (42) and the second planetary gear set (52) are arranged one after the other in the following order: the electric motor (30), the first planetary gear set (42), and the second planetary gear set (52), and wherein the rotor axis (38) is arranged at a right angle to a longitudinal direction (22) of the motor vehicle (10); wherein: in the longitudinal direction (22) of the motor vehicle (20), the first axle (12), the traction battery (28), the second axle (20), and the electric drive (26) are arranged one after the other in the following order: the first axle (12), the traction battery (28), the second axle (20), and the electric drive (26); the housing (28) is rigidly attached to a frame (18) of the motor vehicle (10); the electric drive (26) has an angle drive (62); the motor vehicle (10) has a cardan shaft (64); one of the fourth, fifth, and sixth elements of the second planetary gear set (52) is couplable with an input gearwheel (66) of the angle drive (62) in a manner fixed against rotation; an output gearwheel (68) of the angle drive (62) is couplable with an input side (E) of the cardan shaft (64); and an output side (A) of the cardan shaft (64) is couplable with an axle gearbox (70) of the second axle (20). ### Claim 2 (depends on 1) The motor vehicle (10) according to claim 1, wherein the output gearwheel (68) of the angle drive (62) is coupled with a first gearwheel (74) of a spur gear stage (72) in a manner fixed against rotation. ### Claim 3 (depends on 2) The motor vehicle (10) according to claim 2, wherein a second gearwheel (76) of the spur gear stage (72) is coupled with the input side (E) of the cardan shaft (64) in a manner fixed against rotation. ### Claim 4 (depends on 1) The motor vehicle (10) according to claim 1, wherein the electric drive (26) further has: a first switch element (S1) via which the third element is couplable with the rotor (34) in a manner fixed against rotation; a second switch element (S2) via which the third element is couplable with the housing (28) in a manner fixed against rotation; a third switch element (S3) via which the first element is couplable with the rotor (34) in a manner fixed against rotation; a fourth switch element (S4) via which the first element is couplable with the housing (28) in a manner fixed against rotation, wherein the fourth switch element (S4) is arranged on a side (S3) of the electric motor (30) facing away from the first planetary gear set (42) in the axial direction of the rotor (34); and a fifth switch element (S5) via which the second element is couplable with the fourth element in a manner fixed against rotation, wherein the fifth element is couplable with the input gearwheel (66) of the angle drive (62) in a manner fixed against rotation. ### Claim 5 (depends on 4) The motor vehicle (10) according to claim 4, wherein the fifth switch element (S5) is configured to couple the second element with the fourth element in a manner fixed against rotation and with the sixth element in a manner fixed against rotation. ### Claim 6 (depends on 4) The motor vehicle (10) according to claim 4, wherein the sixth element is couplable with the housing (28) via a sixth switch element (S6) in a manner fixed against rotation. ### Claim 7 (depends on 6) The motor vehicle (10) according to claim 6, wherein the fourth element is couplable with the housing (28) via a seventh switch element (S7) in a manner fixed against rotation. ### Claim 8 (depends on 7) The motor vehicle (10) according to claim 7, wherein the fourth switch element (S4), the electric motor (30), the first planetary gear set (42), the second planetary gear set (52), the input gearwheel (66), and the seventh switch element (S7) are arranged one after the other in the following order when viewed in a direction of the driveable second axle (20) and/or in the axial direction of the rotor (34): the fourth switch element (S4), the electric motor (30), the first planetary gear set (42), the second planetary gear set (52), the input gearwheel (66), and the seventh switch element (S7). ### Claim 9 (depends on 4) The motor vehicle (10) according to claim 4, wherein the third switch element (S3) and the fourth switch element (S4) are arranged axially neighboring each other and are combined to form a coupler switch element (KS) having at least two switch positions. ### Claim 10 (depends on 1) The motor vehicle (10) according to claim 1, further comprising a second electric motor (77) which is arranged coaxially with the electric motor (30) and which has a second stator (78) and a second rotor (80) that is rotatable relative to the second stator (78), wherein the second rotor (80) is couplable with one of the fourth, fifth, and sixth elements of the second planetary gear set (52) in a manner fixed against rotation. ### Claim 11 (depends on 10) The motor vehicle (10) according to claim 10, wherein the second rotor (80) is couplable with the fourth element in a manner fixed against rotation. ### Claim 12 (depends on 10) The motor vehicle (10) according to claim 10, wherein the first electric motor (30), the first planetary gear set (42), the second planetary gear set (52), the input gearwheel (66), and the second electric motor (77) are arranged one after the other in the following order when viewed in a direction of the driveable second axle (20) and/or in an axial direction of the first electric motor (30): the first electric motor (30), the first planetary gear set (42), the second planetary gear set (52), the input gearwheel (66), and the second electric motor (77). ### Claim 13 (depends on 1) The motor vehicle (10) according to claim 1, further comprising: a further electric motor (86) having a further stator (88) and a further rotor (90), which is arranged coaxially with the rotor (34), the first planetary gear set (42), and the second planetary gear set (52); a third planetary gear set (96) having a seventh element, an eighth element, and a ninth element which are arranged coaxially with the rotor (34), the further rotor (90), the first planetary gear set (42), and the second planetary gear set (52); and a fourth planetary gear set (98) having a tenth element, an eleventh element, and a twelfth element which are arranged coaxially with the rotor (34), the further rotor (90), the first planetary gear set (42), the second planetary gear set (52), and the third planetary gear set (96), wherein the further rotor (90) is couplable with the seventh element in a manner fixed against rotation, wherein the eighth element is couplable with the tenth element, and wherein the eleventh element is couplable with the input gearwheel (66) of the angle drive (62) in a manner fixed against rotation. ### Claim 14 (depends on 13) The motor vehicle (10) according to claim 13, wherein the electric motor (30), the first planetary gear set (42), the second planetary gear set (52), the input gearwheel (66) of the angle drive (62), the fourth planetary gear set (98), the third planetary gear set (96), and the further electric motor (86) are arranged one after the other in the following order when viewed in a direction of the driveable second axle (20) and/or in the axial direction of the first rotor (34): the first electric motor (30), the first planetary gear set (42), the second planetary gear set (52), the input gearwheel (66) of the angle drive (62), the fourth planetary gear set (98), the third planetary gear set (96), and the further electric motor (86).