# US 11,999,239 B2 · Independent suspension > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,239 B2 - Document ID: US11999239B2 - Status: Granted - Kind: B2 - Application number: 17/213,912 - Filed: 2021-03-26 - Published: 2021-10-07 - Granted: 2024-06-04 - Earliest claimed: 2020-04-02 - Assignees: Brist Axle Systems S.R.L. - Applicants: Brist Axle Systems S.R.L. - Inventors: Danilo Bonera; Alessandro Oldrati - Web page: https://patentgrep.com/patent/US11999239B2 ## CPC - B60G 3/20: all arms being rigid - B60K 7/0007: {the motor being electric} - B60G 11/32: having springs of different kinds {(B60G11/006 takes precedence)} - B60K 7/00: Disposition of motor in, or adjacent to, traction wheel - B60K 17/043: {Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel} - B60K 17/046: {with planetary gearing having orbital motion} - B60G 2200/10: Independent suspensions - B60G 2200/144: with two lateral arms forming a parallelogram - B60G 2202/152: Pneumatic spring - B60G 2204/182: Electric motor on wheel support - B60G 2206/50: Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments - B60G 2300/02: Trucks; Load vehicles - B60G 2300/14: Buses - B60G 2300/50: Electric vehicles; Hybrid vehicles - B60K 2007/0038: {the motor moving together with the wheel axle} - B60K 2007/0061: {the motor axle being parallel to the wheel axle} - B60Y 2200/14: Trucks; Load vehicles, Busses - B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00}) - 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 An independent suspension for vehicles, in particular for the transport of people and/or materials, including a hub defining a rotation axis of the vehicle wheel, an electric motor, operatively connected to the hub and configured to put the hub in rotation. The electric motor extends along a development axis thereof parallel to the rotation axis of the hub. ## Claims ### Claim 1 An independent suspension for a vehicle for transport of at least one chosen from people and materials, comprising: a hub defining a rotation axis of a wheel of the vehicle; an electric motor, operatively connected to said hub and configured to put said hub in rotation, said electric motor extending along a first development axis thereof; wherein said first development axis of the electric motor is parallel to the rotation axis; said electric motor extending towards said hub along said development axis from a starting point where the electric motor drivingly connects to the hub, to a final point of the electric motor opposite the starting point, where said final point faces towards said hub. ### Claim 2 (depends on 1) The independent suspension according to claim 1, further comprising a transmission system, for putting the wheel hub in rotation by said electric motor, comprising a speed reducer developing along a second development axis thereof perpendicular to said rotation axis and first development axis, an input shaft between the electric motor and the speed reducer, and an output shaft between the speed reducer and the hub. ### Claim 3 (depends on 2) The independent suspension according to claim 2, wherein at least said input shaft and said speed reducer include cylindrical gears geared to each other or realize a motion transmission by drive belts. ### Claim 4 (depends on 2) The independent suspension according to claim 2, and further, comprising a support element including a first support portion and a second support portion defining a substantially horizontal hinge point for a respective cross arm end. ### Claim 5 (depends on 4) The independent suspension according to claim 4, and further comprising a junction element formed as a homokinetic joint, wherein said output shaft is connected to said hub and to said speed reducer by the junction element. ### Claim 6 (depends on 5) The independent suspension according to claim 5, wherein said support element includes an opening configured to allow passage and accommodation of said junction element. ### Claim 7 (depends on 4) The independent suspension according to claim 4, comprising a steering spindle comprising an outer portion, defining said rotation axis, and an inner portion extending transversely to the outer portion along a steering axis. ### Claim 8 (depends on 7) The independent suspension according to claim 7, wherein the support element is rotatably coupled to the inner portion of the steering spindle to allow a relative rotation around the steering axis. ### Claim 9 (depends on 4) The independent suspension according to claim 4, wherein said first support portion includes a spring or damper and wherein said second support portion includes a shock absorber. ### Claim 10 (depends on 2) The independent suspension according to claim 2, wherein said transmission system is configured as a single speed transmission or a multiple speed transmission. ### Claim 11 (depends on 2) The independent suspension according to claim 2, wherein said transmission system comprises an epicyclic gear system installed on the hub. ### Claim 12 (depends on 2) The independent suspension according to claim 2, wherein said electric motor is positioned between said hub and said speed reducer. ### Claim 13 (depends on 1) The independent suspension according to claim 1, wherein said first development axis of the electric motor and said rotation axis lie on a plane obliquely arranged with respect to a horizontal or vertical reference plane passing through said rotation axis. ### Claim 14 (depends on 1) The independent suspension according to claim 1, wherein said first development axis of the electric motor and said rotation axis lie on a same vertical plane or on a same horizontal plane. ### Claim 15 (depends on 1) A vehicle for transport of at least one chosen from persons and materials comprising the independent suspension according to claim 1 for each wheel of the vehicle, said independent suspensions coupled to each other having a corridor between 500 and 1000 mm to define an auxiliary load volume. ### Claim 16 (depends on 15) The vehicle according to claim 15, further comprising a loading platform for loading luggage or other materials having a main load volume and a number of auxiliary load volumes equal to a number of pairs of independent suspensions present in the vehicle, each auxiliary load volume having a width equal to said corridor. ### Claim 17 (depends on 16) The vehicle according to claim 16, further comprising a tailgate for loading the at least one chosen from people and materials. ### Claim 18 (depends on 15) The vehicle according to claim 15, further comprising a plane configured to support passengers and including, near said independent suspensions, an abutment width substantially equal to said corridor.