Vehicle HVAC noise control system
First Claim
1. A vehicle HVAC noise control system comprising:
- an air handler providing airflow to a passenger compartment, the air handler including a heating source and a cooling source;
an inputting device that sets a target temperature for the passenger compartment;
a temperature sensor that measures a current temperature within the passenger compartment;
at least one exterior sensor that detects an ambient condition outside of the passenger compartment;
a blower motor operably connected to the air handler moving the air flowing through the air handler into the passenger compartment at an adjustable operating airflow rate; and
a controller operatively connected to the air handler, the inputting device, the temperature sensor, the at least one exterior sensor, and the blower motor, the controller determining and implementing adjustments to the operating airflow rate in order to reduce airflow based on at least the ambient condition detected outside of the passenger compartment, a comparison between the target temperature and the current temperature within the passenger compartment and a noise level of the airflow in the passenger compartment,the controller further determines a value of a noise control disable airflow variable based upon at least the ambient condition and the comparison between the target temperature and the current temperature within the passenger compartment, andthe controller further determines whether or not to implement adjustments to the operating airflow rate in response to a comparison between an airflow rate inputted to the inputting device and a noise control disable airflow variable.
2 Assignments
0 Petitions
Accused Products
Abstract
A vehicle HVAC noise control system includes a controller. An air handler provides airflow to a passenger compartment. An inputting device sets a target temperature for the passenger compartment. A temperature sensor measures a current temperature within the passenger compartment. A sensor detects an ambient condition outside of the passenger compartment. A blower motor moves the air flowing through the air handler into the passenger compartment at an adjustable operating airflow rate. The controller is connected to the air handler, the inputting device, the temperature sensor, the exterior sensor, and the blower motor. The controller determines and implements adjustments to the operating airflow rate in order to reduce airflow noise level based on at least the ambient condition, a comparison between the target temperature and the current temperature within the passenger compartment and a noise level of the airflow in the passenger compartment.
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Citations
17 Claims
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1. A vehicle HVAC noise control system comprising:
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an air handler providing airflow to a passenger compartment, the air handler including a heating source and a cooling source; an inputting device that sets a target temperature for the passenger compartment; a temperature sensor that measures a current temperature within the passenger compartment; at least one exterior sensor that detects an ambient condition outside of the passenger compartment; a blower motor operably connected to the air handler moving the air flowing through the air handler into the passenger compartment at an adjustable operating airflow rate; and a controller operatively connected to the air handler, the inputting device, the temperature sensor, the at least one exterior sensor, and the blower motor, the controller determining and implementing adjustments to the operating airflow rate in order to reduce airflow based on at least the ambient condition detected outside of the passenger compartment, a comparison between the target temperature and the current temperature within the passenger compartment and a noise level of the airflow in the passenger compartment, the controller further determines a value of a noise control disable airflow variable based upon at least the ambient condition and the comparison between the target temperature and the current temperature within the passenger compartment, and the controller further determines whether or not to implement adjustments to the operating airflow rate in response to a comparison between an airflow rate inputted to the inputting device and a noise control disable airflow variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vehicle HVAC noise control system comprising:
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an air handler providing airflow to a passenger compartment, the air handler including a heating source and a cooling source; an inputting device that sets a target temperature for the passenger compartment; a temperature sensor that measures a current temperature within the passenger compartment; an ambient temperature sensor positioned to detect ambient temperature outside of the passenger compartment; a sunlight sensor that detects sunlight conditions outside of the passenger compartment; a blower motor operably connected to the air handler moving the air flowing through the air handler into the passenger compartment at an adjustable operating airflow rate; a sound detector within the passenger compartment that detects the noise level of the airflow, and a controller operatively connected to the air handler, the inputting device, the temperature sensor, the ambient temperature sensor, the sunlight sensor, the sound detector and the blower motor, the controller being configured to determine a step value Step and implement adjustments to the operating airflow rate produced by the blower motor by an amount equal to the step value Step, the step value Step being determined as follows;
Step=F×
(NL−
MN)where F is a predetermined fixed value; NL is a variable determined based on the current temperature within the passenger compartment, the target temperature set by the inputting device, ambient temperature and a current reading from the sunlight sensor; and MN is an amount of measured noise detected by the sound detector.
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Specification