Windshield device, aircraft, and power control method for windshield heater
First Claim
Patent Images
1. A windshield device comprising:
- a windshield;
a heater that is provided in the windshield and configured to generate heat by energization;
a temperature sensor that is provided in the windshield and configured to detect a temperature; and
a control unit that performs power control on the heater, whereinthe control unit is configured to supply an input power to the heater, the input power being acquired by applying a detected temperature detected by the temperature sensor to a function that is determined in accordance with a dew-point temperature of an inside of a compartment separated from an outside of the compartment by the windshield, wherein the dew-point temperature is obtained by using absolute humidity calculated based on;
a ventilation volume between the inside of the compartment and ambient air outside of the compartment,an ambient humidity of the ambient air outside of the compartment, andan additional humidification amount released from a moisture source into the inside of the compartment,wherein the compartment separated from the outside of the compartment by the windshield is a cockpit of an aircraft.
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Abstract
The present invention provides a windshield device including: a windshield; a heater that is provided in the windshield and configured to generate heat by energization; a temperature sensor that is provided in the windshield and configured to detect a temperature; and a control unit that performs power control on the heater. The control unit is configured to supply an input power to the heater, the input power being acquired by applying a detected temperature detected by the temperature sensor to a function that is determined in accordance with a dew-point temperature of an inside of a compartment separated from an outside of the compartment by the windshield.
4 Citations
13 Claims
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1. A windshield device comprising:
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a windshield; a heater that is provided in the windshield and configured to generate heat by energization; a temperature sensor that is provided in the windshield and configured to detect a temperature; and a control unit that performs power control on the heater, wherein the control unit is configured to supply an input power to the heater, the input power being acquired by applying a detected temperature detected by the temperature sensor to a function that is determined in accordance with a dew-point temperature of an inside of a compartment separated from an outside of the compartment by the windshield, wherein the dew-point temperature is obtained by using absolute humidity calculated based on; a ventilation volume between the inside of the compartment and ambient air outside of the compartment, an ambient humidity of the ambient air outside of the compartment, and an additional humidification amount released from a moisture source into the inside of the compartment, wherein the compartment separated from the outside of the compartment by the windshield is a cockpit of an aircraft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power control method for a windshield heater, comprising:
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supplying an input power to the heater, the input power being acquired by applying a detected temperature of a windshield to a function that is determined in accordance with a dew-point temperature of an inside of a compartment separated from an outside of the compartment by the windshield, wherein the dew-point temperature is obtained by using absolute humidity, and wherein the absolute humidity is calculated based on; a ventilation volume between the inside of the compartment and ambient air outside of the compartment, an ambient humidity of the ambient air outside of the compartment, and an additional humidification amount released from a moisture source into the inside of the compartment, wherein the compartment separated from the outside of the compartment by the windshield is a cockpit of an aircraft. - View Dependent Claims (10, 11, 12, 13)
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Specification