Air duct system and measurement system and method for determining at least one parameter of an air flow emanating from an air outlet

Abstract

An air duct system for passing an air flow emanating from an air outlet to a measurement device for detecting parameter measurement values for at least one parameter of the air flow, includes at leastone collecting unit for collecting the air flow emanating from the air outlet. That one collecting unit can be disposed on the air outlet so that a contact surface of the collecting unit encloses atleast one outlet opening of the air outlet circumferentially. The collecting unit includes a wall defining a continuous air duct with an inlet end section and an outlet end section. In order to improve the measurement of the parameter of the air flow, the air duct system includes at least one measurement chamber that is communicatively connected to a section of the air duct enclosed by the inlet end section, which, as a measurement chamber that is otherwise closed relative to the surroundings, either contains at least one pressure sensor or comprises at least one connection for communicativelyconnecting the measurement chamber to a pressure measurement device.

Description

technical field [0001] This document relates to an air duct system for conducting an air flow from an air outlet with which the air flow can be introduced directly into the passenger compartment of a vehicle to a measuring device for detecting a parameter measurement of at least one parameter of the air flow . The air duct system comprises at least one collecting unit for collecting the air flow from the air outlet. At least one collecting unit may be arranged on the air outlet such that a contact surface of the collecting unit circumferentially surrounds at least one outlet opening of the air outlet, wherein the collecting unit comprises walls defining a continuous air duct having an inlet end portion and an outlet end portion. [0002] Furthermore, the present document relates to a measuring system for determining at least one parameter of an air flow from an air outlet with which the air flow can be introduced directly into the passenger compartment of a vehicle, the measu...

AI Technical Summary

Problems solved by technology

In particular, the measurement may be adversely affected by the occurrence of air leaks and / or by the occurrence of turbulence due to flow edges in the air duct

Furthermore, conventional air ducts often create a pressure drop in the air flow, whereby the measurement of the parameter is affected and therefore inaccurate

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