Arrangement for calculating the temperature in the driver's space of a vehicle
AssigneeScania CV AB (publ)
InventorSven Anders Melin
Life of this patent
Estimating the term…
Abstract
The present invention relates to an arrangement (1) for calculating the temperature T in a driver's compartment (2) of a vehicle. The arrangement (1) incorporates a temperature sensor (4) arranged in a duct (5) and means (6) designed to allow an air flow from said driver's compartment (2) to pass through said duct (5), and said temperature sensor (4) is designed to measure a first temperature level T1 of said airflow. Said means (6) are also designed to halt said air flow for a period of time and said temperature sensor (4) is designed to measure, towards the end of said period of time, a second temperature level T2. The temperature T is calculated on the basis of said first temperature level T1 and said second temperature level T2.
Claims20
A temperature calculating arrangement for a compartment, comprising:
- a compartment having a wall with a duct in the wall;
- a temperature sensor in the duct and spaced from the wall for sensing the temperature of air in the duct;
- an air flow device with a first operating state for flowing air from the compartment through the duct past the sensor and a second state not causing air flow through the duct from the compartment;
- a temperature measuring and comparison device connected with the temperature sensor for measuring the temperature in the duct in the first and second states of the air flow device, for comparing the measured temperatures in the first and second states and calculating the temperature in the compartment based on the first and second measured temperatures.
A method for calculating the temperature in a compartment, wherein the compartment has a wall, a duct through the wall, and a temperature sensor in the duct, the method comprising:
- in a first state, moving air out of the compartment and through the duct and measuring the temperature of the air flowing through the duct;
- in a second state, halting the air flow and measuring the temperature of the halted air in the duct;
- calculating the temperature in the compartment by comparing the first and second temperatures measured in the first and second states.
Dependencies are inferred from the claim text.