System and method to defrost a windshield

Patent metadata

Field	Value
Publication number	US-11718271-B2
Application number	US-202016733186-A
Country	US
Kind code	B2
Filing date	Jan 2, 2020
Priority date	Jan 2, 2020
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

One general aspect includes a system having one or more heat pads installed at a vehicle, the one or more heat pads configured to provide infrared energy transmissions to a vehicle component to defrost, defog, or both defrost and defog a surface of the vehicle component. The system may also carry out the following steps: (a) determining that ice or fog or both ice and fog has accumulated on the surface of the vehicle component; and (b) based on the determination made in step (a), activating the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

First claim

What is claimed is:

1. A system comprising:
one or more heat pads installed in a vehicle and impregnated as part of at least one of an A-pillar and a rearview mirror of the vehicle, the one or more heat pads configured to provide infrared energy transmissions to a vehicle component to defrost, defog, or both defrost and defog a surface of the vehicle component.

2. The system of claim 1 , wherein the one or more heat pads are activated and deactivated via a manual control installed at the vehicle.

3. The system of claim 1 , further comprising:
a memory configured to comprise one or more executable instructions and a processor configured to execute the executable instructions, wherein the executable instructions enable the processor to:
determine that ice or fog or both ice and fog has accumulated on the surface of the vehicle component; and
based on the determination that ice or fog or both ice and fog has accumulated on the surface, activating the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

4. The system of claim 3 , further comprising:
a primary defroster installed at the vehicle; and
wherein the executable instructions enable the processor to, based on the determination that ice or fog or both ice and fog has accumulated on the surface, activate the primary defroster in conjunction with the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

5. The system of claim 3 , further comprising a secondary defroster installed at the vehicle,
wherein the executable instructions enable the processor to, based on the determination that ice or fog or both ice and fog has accumulated on the surface, activate the secondary defroster in conjunction with the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

6. The system of claim 3 , wherein the executable instructions enable the processor to
determine that ice or fog or both ice and fog has been removed from the surface of the vehicle component; and
based on the determination that ice or fog or both ice and fog has been removed from the surface, deactivate the one or more heat pads.

7. The system of claim 1 , wherein the vehicle component is a windshield.

8. A method comprising:
activating one or more heat pads installed at a vehicle to provide infrared energy transmissions to a vehicle component so as to defrost, defog, or both defrost and defog a surface of the vehicle component;
determining, via a processor, that ice or fog or both ice and fog has accumulated on the surface of the vehicle component;
providing at least one of a primary defroster and a secondary defroster installed at the vehicle; and
based on determining that ice or fog or both ice and fog has accumulated on the surface, via the processor, activating the at least one of the primary defroster and the secondary defroster in conjunction with the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

9. The method of claim 8 , wherein the one or more heat pads are activated and deactivated via a manual control installed at the vehicle.

10. The method of claim 8 , further comprising:
providing the primary defroster installed at the vehicle; and
based on determining that ice or fog or both ice and fog has accumulated on the surface, via the processor, activating the primary defroster in conjunction with the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

11. The method of claim 8 , further comprising:
providing the secondary defroster installed at the vehicle; and
based on determining that ice or fog or both ice and fog has accumulated on the surface, via the processor, activating the secondary defroster in conjunction with the one or more heat pads to defrost, defog, or both defrost and defog a surface of the vehicle component.

12. The method of claim 8 , further comprising:
determining, via the processor, that ice or fog or both ice and fog has been removed from the surface of the vehicle component; and
based on determining that ice or fog or both ice and fog has been removed from the surface, via the processor, deactivating the one or more heat pads.

13. The method of claim 8 , wherein the one or more heat pads is installed at an instrument panel, rearview mirror, A-pillar, or some combination thereof.

14. The method of claim 8 , wherein the vehicle component is a windshield.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Pinto Nicholas W
• Chen Kuo-Huey
• Gordon Todd J

Classifications

• B60S1/026 Primary

  using electrical means · CPC title

• B60S1/54

  using gas, e.g. hot air · CPC title

• B60S1/58

  for rear windows · CPC title

• B60S1/603

  the operation of at least a part of the cleaning means being controlled by electric means · CPC title

• H05B1/0236

  for vehicles · CPC title