Location-specific detection and removal of ice or debris in a vehicle wheel well

Patent metadata

Field	Value
Publication number	US-10106201-B2
Application number	US-201514619234-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Feb 11, 2015
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A system and method for removing snow and/or ice from one or more zones on an exterior surface of a vehicle are provided. The system includes a plurality of detection/removal zones, each zone having an associated snow sensor and an associated removal element. Detection of snow within any zone by the associated snow sensor automatically activates the associated snow removal element. The method includes detecting and removing snow automatically within at least one zone of a multi-zone removal system of the same type.

First claim

What is claimed is:

1. A system for removing frozen precipitate from a vehicle wheel well, the system comprising:
a plurality of spatially separate and non-overlapping detection/removal zones located in the wheel well, each detection/removal zone having:
a snow sensor configured to detect accumulated frozen precipitate located in the detection/removal zone;
a removal element in signal communication with the snow sensor, the removal element configured to remove accumulated frozen precipitate located in the detection/removal zone when activated, the removal element comprising:
a mechanical protrusion element comprising one or more rod, plate, or other part which, upon activation, mechanically and temporarily protrudes from a portion of a detection/removal zone to push frozen precipitate off of the detection/removal zone;
a mechanical abrasion element comprising a moving part that scrapes or otherwise abrades accumulated frozen precipitate from the vehicle exterior surface; and
a vibrational removal element that vibrates or emits acoustic waves;

a cleaning element configured to remove residual dirt from the snow sensor in one or more spatially separated and non-overlapping detection/removal zones; and
a controller configured to receive data from the snow sensor, and to transmit instructions directing activation of the removal element when the snow sensor detects accumulated frozen precipitate in the detection/removal zone.

2. The system as recited in claim 1 , wherein the cleaning element is a spray element configured to spray a gas, aerosol, solvent, or solution at the one or more spatially separated and non-overlapping detection/removal zones.

3. The system as recited in claim 1 , wherein the snow sensor comprises at least one of an electromagnetic (EM) wave sensor, and an acoustic sensor.

4. The system as recited in claim 1 , wherein at least two removal elements have different output magnitudes.

5. A method for removing accumulated frozen precipitate from at least one of a plurality of detection/removal zones located in a vehicle wheel well, the method comprising:
receiving, at a controller, data from at least one of a plurality of snow sensors, each snow sensor configured to detect accumulated frozen precipitate located in respective detection/removal zones, the data indicating a presence of accumulated frozen precipitate in the at least one detection/removal zone;
transmitting, from the controller, instructions directing activation of a removal element that is configured to remove accumulated frozen precipitate located in the detection/removal zone from which the data were received, the removal element comprising:
a mechanical protrusion element comprising one or more rod, plate, or other part which, upon activation, mechanically and temporarily protrudes from a portion of a detection/removal zone to push frozen precipitate off of the detection/removal zone;
a mechanical abrasion element comprising a moving part that scrapes or otherwise abrades accumulated frozen precipitate from the vehicle exterior surface; and
a vibrational removal element that vibrates or emits acoustic waves;

removing the accumulated frozen precipitate in the detection/removal zone using the removal element located in the detection/removal zone;
detecting residual dirt on at least one of the plurality of snow sensors; and
cleaning the at least one snow sensor on which residual dirt is detected.

6. The method as recited in claim 5 , further comprising:
receiving debris-indicative data from any detection/removal zone from the plurality of detection removal zones; and
transmitting instructions directing activation of a cleaning element positioned to clean the detection/removal zone from which debris-indicative data were received.

7. The method as recited in claim 6 , wherein the cleaning element is a spray element configured to spray a gas, aerosol, solvent, or solution at the one or more detection/removal zones.

8. The method as recited in claim 5 , wherein the snow sensor comprises any of an EM wave sensor, an acoustic sensor, and a temperature sensor.

9. A system for removing frozen precipitate from a vehicle wheel well, the system comprising:
a plurality of detection/removal zones located in the wheel well, each detection/removal zone having:
a snow sensor configured to detect accumulated frozen precipitate located in the detection/removal zone when activated; and
a removal element in signal communication with the snow sensor, the removal element configured to remove accumulated frozen precipitate located in the detection/removal zone, the removal element comprising:
a mechanical protrusion element comprising one or more rod, plate, or other part which, upon activation, mechanically and temporarily protrudes from a portion of a detection/removal zone to push frozen precipitate off of the detection/removal zone;
a mechanical abrasion element comprising a moving part that scrapes or otherwise abrades accumulated frozen precipitate from the vehicle exterior surface; and
a vibrational removal element that vibrates or emits acoustic waves;

a cleaning element configured to remove residual debris from the snow sensor in one or more detection/removal zones; and
a controller configured to receive data from the snow sensor located in any detection/removal zone of the plurality of detection/removal zones; to transmit instructions directing activation of the removal element that is located in the detection/removal zone from which the data were received; to receive debris-indicative data from a detection/removal zone; and to transmit instructions directing activation of the cleaning element positioned to clean the detection/removal zone from which debris-indicative data were received,
wherein detection of accumulated frozen precipitate by the snow sensor causes the controller to activate the removal element.

10. The system as recited in claim 9 , wherein the cleaning element is a spray element configured to spray a gas, aerosol, solvent, or solution at the one or more detection/removal zones.

11. The system as recited in claim 9 , wherein the snow sensor comprises any of an electromagnetic (EM) wave sensor, an acoustic sensor, and a temperature sensor.

12. The system as recited in claim 9 , wherein at least two removal elements have different output magnitudes.

13. The system as recited in claim 9 , further comprising a first detection/removal zone having a first removal element and a first output magnitude, and a second detection/removal zone having a second removal element and a second output magnitude, wherein the first output magnitude is greater than the second output magnitude.

14. A system for removing accumulated debris from a vehicle wheel well, the system comprising:
a plurality of detection/removal zones located in the wheel well, each detection/removal zone having:
a debris sensor configured to detect accumulated dirt located in the detection/removal zone; and
a cleaning element in signal communication with the debris sensor, the cleaning element configured to remove accumulated dirt located in the detection/removal zone when activated, the cleaning element comprising:
a mechanical protrusion element comprising one or more rod, plate, or other part which, upon activation, mechanically and temporarily protrudes from a portion of a detection/removal zone to push frozen precipitate off of the detection/removal zone;
a mechanical abrasion element comprising a moving part that scrapes or otherwise abrades accumulated frozen precipitate from the vehicle exterior surface; and
a vibrational removal element that vibrates or emits aco

Assignees

• Toyota Eng & Mfg North America

Inventors

• Kowalk Christopher L

Classifications

• B62D25/16 Primary

  Mud-guards or wings; Wheel cover panels (equipped with means for freeing wheels or tyres from foreign matter B60S) · CPC title

• B60L1/02

  to electric heating circuits · CPC title

• B60S1/66

  for cleaning vehicle exterior · CPC title