# US 12,759,509 B2 · Automatic cleaning system and method for vehicle floor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,759,509 B2 - Document ID: US12759509B2 - Status: Granted - Kind: B2 - Application number: 18/677,092 - Filed: 2024-05-29 - Published: 2025-12-04 - Granted: 2026-10-13 - Earliest claimed: 2024-05-29 - Assignees: GM Global Technology Operations LLC - Applicants: GM Global Technology Operations LLC - Inventors: Seokju Yong; Jooyoul Lee; Semoon Choi; Dongjin Kang; Dongseok Yoon; Bongbum Back - Web page: https://patentgrep.com/patent/US12759509B2 ## CPC - B60S 1/64: for cleaning vehicle interiors, e.g. built-in vacuum cleaners - B60H 3/0608: {Filter arrangements in the air stream} - B60N 2/90: Details or parts not otherwise provided for - B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract A system for cleaning a floor surface in a vehicle includes a vehicle seat having a seat frame and a leg recliner assembly. A brush assembly is integrated with the leg recliner assembly. The leg recliner assembly has a base section operatively connected to the seat frame and a leg-rest section. A portable cleaner is fitted within the base section and is fluidly coupled with the brush assembly. A controller is adapted to, upon activation of an automatic cleaning mode, move the vehicle seat along a first axis until a rack and pinion mechanism moves to an engaged position and adjust a position of the leg-rest section such that a portion of the brush assembly is in contact with the floor surface. The rack and pinion mechanism is adapted to guide motion of the brush assembly along a second axis to clean the floor surface. ## Claims ### Claim 1 A system for cleaning a floor surface in a vehicle, comprising: a vehicle seat having a seat frame and a leg recliner assembly, the leg recliner assembly having a base section operatively connected to the seat frame and a leg-rest section; a brush assembly integrated with the leg-rest section; a portable cleaner fitted within the base section, the portable cleaner being fluidly coupled with the brush assembly; a rack and pinion mechanism operatively connected to the seat frame; a controller having a processor and tangible, non-transitory memory on which instructions are recorded for executing an automatic cleaning mode; wherein the controller is adapted to, upon activation of the automatic cleaning mode, move the vehicle seat along a first axis until the rack and pinion mechanism moves from a rest position to an engaged position and adjust a position of the leg-rest section such that a portion of the brush assembly is in contact with the floor surface; and wherein the rack and pinion mechanism is adapted to guide motion of the brush assembly along a second axis to clean the floor surface during the automatic cleaning mode. ### Claim 2 (depends on 1) The system of claim 1, wherein the rack and pinion mechanism includes a rack and a pinion gear configured such that rotation of the pinion gear causes linear motion of the rack and the base section along the second axis, the rack and pinion mechanism being in the engaged position when the pinion gear is in contact with the rack. ### Claim 3 (depends on 1) The system of claim 1, further comprising: a seat motor adapted to selectively power motion of the vehicle seat; and a torque sensor adapted to monitor a position of the brush assembly, the controller being adapted to adjust the position of the leg-rest section based on data from the torque sensor. ### Claim 4 (depends on 1) The system of claim 1, wherein: the portable cleaner includes a suction motor and a dust collector; and the leg-rest section is pivotable relative to the base section, the leg-rest section being positioned at an angle relative to the base section. ### Claim 5 (depends on 4) The system of claim 4, further comprising: a power source adapted to charge the suction motor; and wherein the controller is adapted to ensure that the vehicle seat is vacant prior to moving the vehicle seat. ### Claim 6 (depends on 4) The system of claim 4, wherein the brush assembly includes: an intake port adapted to receive particles from the floor surface; and a first channel adapted to at least partially direct flow of the particles between the intake port and the dust collector. ### Claim 7 (depends on 6) The system of claim 6, further comprising: a second channel embedded within the base section and fluidly coupled with the brush assembly, the second channel being adapted to at least partially direct flow of the particles from the first channel to the dust collector. ### Claim 8 (depends on 7) The system of claim 7, further comprising: a heating, ventilation, and air conditioning (HVAC) unit operatively connected to the vehicle and having an air purifying mode adapted to remove impurities from air in a cabin compartment of the vehicle; and wherein the controller is adapted to activate the air purifying mode after the cleaning has ended. ### Claim 9 (depends on 1) The system of claim 1, wherein the automatic cleaning mode includes a manual cleaning mode selectable by a user with a switch located in the vehicle and an ignition-off cleaning mode adapted for remote activation by the user. ### Claim 10 (depends on 1) The system of claim 1, wherein the controller is adapted to open one or more windows in the vehicle by a predetermined amount prior to the cleaning and close the one or more windows after the cleaning has ended. ### Claim 11 A method of operating an automatic cleaning system in a vehicle having a vehicle seat, and a controller with a processor and tangible, non-transitory memory, the method comprising: connecting a leg recliner assembly to the vehicle seat, the leg recliner assembly having a base section operatively connected to a seat frame and a leg-rest section; integrating a brush assembly in the leg-rest section and fitting a portable cleaner within the base section, the portable cleaner being fluidly coupled with the brush assembly; upon activation of an automatic cleaning mode via the controller, moving the vehicle seat along a first axis until a rack and pinion mechanism in the seat frame moves from a rest position to an engaged position; adjusting a position of the leg-rest section such that a portion of the brush assembly is in contact with a floor surface of the vehicle, via the controller; and moving the brush assembly along a second axis, via the rack and pinion mechanism, to clean the floor surface during the automatic cleaning mode. ### Claim 12 (depends on 11) The method of claim 11, further comprising: configuring the rack and pinion mechanism with a rack and a pinion gear such that rotation of the pinion gear causes linear motion of the rack along the second axis, the rack and pinion mechanism being in the engaged position when the pinion gear is in contact with the rack. ### Claim 13 (depends on 11) The method of claim 11, further comprising: powering motion of the vehicle seat with a seat motor; and monitoring a position of the brush assembly via a torque sensor; and adjusting the position of the leg-rest section based on data from the torque sensor. ### Claim 14 (depends on 11) The method of claim 11, further comprising: suctioning particles from the floor surface via an intake port in the brush assembly; and directing the particles from the floor surface to the portable cleaner via a first channel in the brush assembly. ### Claim 15 (depends on 14) The method of claim 14, further comprising: embedding a second channel within the seat frame, the portable cleaner having a dust collector; and constructing the second channel such that the particles are directed from the first channel to the dust collector via the second channel. ### Claim 16 (depends on 11) The method of claim 11, further comprising: incorporating a manual cleaning mode and an ignition-off cleaning mode in the automatic cleaning mode, the manual cleaning mode being selectable by a user with a switch located in the vehicle and the ignition-off cleaning mode being adapted for remote activation by the user. ### Claim 17 (depends on 11) The method of claim 11, further comprising: ensuring that the vehicle seat is vacant prior to moving the vehicle seat; opening one or more windows in the vehicle by a predetermined amount prior to the cleaning and closing the one or more windows after the cleaning has ended; and removing impurities from air in a cabin compartment of the vehicle, via an air purifying mode accessible to the controller, after the cleaning has ended. ### Claim 18 A vehicle comprising: a vehicle seat having a seat frame and a leg recliner assembly, the leg recliner assembly having a base section operatively connected to the seat frame and a leg-rest section, the leg-rest section being pivotable relative to the base section; a brush assembly integrally formed with the leg-rest section; a portable cleaner fitted within the base section, the portable cleaner being fluidly coupled with the brush assembly; a rack and pinion mechanism operatively connected to the seat frame and having a rack and pinion gear, the rack and pinion mechanism being in an engaged position when the pinion gear is in contact with the rack; a controller having a processor and tangible, non-transitory memory on which instructions are recorded for executing an automatic cleaning mode; wherein the controller is adapted to, upon activation of the automatic cleaning mode, move the vehicle seat along a first axis until the rack and pinion mechanism moves from a rest position to the engaged position and adjust a position of the leg-rest section such that a portion of the brush assembly is in contact with a floor surface of the vehicle; and wherein the rack and pinion mechanism is adapted to guide motion of the brush assembly along a second axis to clean the floor surface during the automatic cleaning mode, the rack and pinion mechanism being configured such that rotation of the pinion gear causes linear motion of the rack and the base section along the second axis. ### Claim 19 (depends on 18) The vehicle of claim 18, further comprising: a seat motor adapted to selectively power motion of the vehicle seat; and a torque sensor adapted to monitor a position of the brush assembly, the controller being adapted to adjust the position of the leg-rest section based on data from the torque sensor. ### Claim 20 (depends on 18) The vehicle of claim 18, wherein: the portable cleaner includes a suction motor, and a dust collector; the brush assembly includes an intake port adapted to receive particles from the floor surface, and a first channel adapted to at least partially direct flow of the particles between the intake port and the dust collector; and the base section includes a second channel embedded within and fluidly coupled with the brush assembly, the second channel being adapted to at least partially direct flow of the particles from the first channel to the dust collector.