Method for determining an interior temperature of a passenger area of a motor vehicle, arrangement for execution of the method, and a temperature sensor
First Claim
1. A method for determining an interior temperature based on a value for incident sun radiation recorded with a photo sensor and/or a surface temperature at a measuring area recorded with a temperature sensor, wherein air circulation in front of the measuring area is determined, which, is weighted as a variable heat-transmission resistance, and is entered as a correction value into the recorded incident sun radiation, wherein in a first adaptive measurement with the temperature sensor, the reaction at the temperature sensor at zero air circulation is taken and recorded, a heat element is provided with a signal, which is recorded as a step response on the sensor, and wherein from the difference of the step response as compared to an adaptively determined reaction, the presence or absence of air flow is determined.
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Accused Products
Abstract
A signal (Snormai) is provided to a heat element of a temperature sensor, which is recorded as a step response (Lruh, Lbew). From the difference of the step response compared with the reaction adaptively determined with the temperature sensor at zero air circulation, air flow or no air flow is determined.
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Citations
17 Claims
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1. A method for determining an interior temperature based on a value for incident sun radiation recorded with a photo sensor and/or a surface temperature at a measuring area recorded with a temperature sensor,
wherein air circulation in front of the measuring area is determined, which, is weighted as a variable heat-transmission resistance, and is entered as a correction value into the recorded incident sun radiation, wherein in a first adaptive measurement with the temperature sensor, the reaction at the temperature sensor at zero air circulation is taken and recorded, a heat element is provided with a signal, which is recorded as a step response on the sensor, and wherein from the difference of the step response as compared to an adaptively determined reaction, the presence or absence of air flow is determined.
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4. A temperature sensor for determining the interior temperature of a passenger area, comprising:
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at least one sensor for determining the surface temperature of a measuring area, and a heat element, which is thermally coupled with the at least one sensor. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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17. A method for determining and adjusting the temperature of an interior of a vehicle, the method comprising:
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measuring and storing a control value, the control value being representative of the temperature of a control element surface that is provided in the interior of the vehicle value and measured with a temperature sensor when there is no air movement within the interior of the vehicle;
providing a pulsed signal to a heat element so that the temperature sensor exhibits a temperature change;
measuring a step response of the temperature sensor;
comparing the step response of the temperature sensor with the control value;
determining a damping amount of the heat element on the basis of the comparison of the step response of the temperature sensor with the control value;
determining a presence or absence of air flow in the interior of the vehicle on the basis of a comparison of the damping amount with a predetermined value; and
adjusting a control of a heating and air-conditioning system of a vehicle on the basis of the determination of the presence or absence of air flow in the interior of the vehicle.
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Specification