Method for determining the surrounding air temperature of a motor vehicle

A technology of air temperature and surrounding air, applied in the application of thermometers, thermometers, temperature control, etc., can solve problems such as distortion

Active Publication Date: 2018-11-02
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The same is true if the temperature sensor is moved from the front radiator to the side mirrors, where, despite the fact that the raw temperature measurement is not affected by engine heat, it may be distorted by solar radiation

Method used

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  • Method for determining the surrounding air temperature of a motor vehicle
  • Method for determining the surrounding air temperature of a motor vehicle

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Experimental program
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Embodiment Construction

[0028] In an exemplary embodiment, a motor vehicle with an internal combustion engine is equipped with temperature sensors located in the side mirrors, and equipped with a solar radiation sensor arranged on the dashboard. However, the method described below can also be carried out in a hybrid or electric vehicle, and it is also possible, for example, to also have two temperature sensors for temperature measurement, each temperature sensor being arranged in a side mirror, in the In this case, the average value of the two temperature measurements or the lower value of the two temperature measurements can be used.

[0029] If the vehicle has been stopped for a period of time with the engine off and the engine has been started by switching on the ignition, the data required for the following steps are assembled and some data are initialized and checked for validity.

[0030] In step S1 it is checked whether the time of rest EOT is greater than a time threshold EOT_c, which can be ...

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Abstract

A method for operating a climate-control system of a vehicle using an initial ambient (outside the vehicle) air temperature calculated based upon a current air temperature measured by a temperature sensor located on a side-mirror of the vehicle. A previous air temperature is stored at or before an engine shut-down time. At a subsequent engine start time: a) the temperature sensor on the side-mirror determines the current air temperature; b) a solar radiation on the vehicle is measured; and c) a duration since the previous air temperature was stored is determined. If, at the engine re-start time; a) the duration exceeds a threshold value; and b) the current air temperature is higher than the previous air temperature, then the initial air temperature is calculated from: a) the current air temperature, b) the previous air temperature, and c) the solar radiation. The climate-control system is operated using the calculated initial temp.

Description

technical field [0001] The invention relates to a method for determining the temperature of the air surrounding a vehicle on the basis of temperature measurements of temperature sensors installed in the side mirrors of the vehicle, a method for determining the air temperature after the vehicle has come to a standstill, according to the preambles of the independent claims A method of initializing, and a motor vehicle. Background technique [0002] A method according to the preamble of claim 1 is disclosed in patent KR20140054566A. The ambient air temperature measured in this way may not match the actual ambient air temperature. [0003] The external temperature sensor, usually located near the front radiator, is affected by engine heat. It is known from patent US2006 / 0209921A1 to consider the effect of engine heat, where temperature measurements taken at higher vehicle speeds are considered valid, and at lower vehicle speeds, the time profile of the temperature measurements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00G01J5/00
CPCG01J5/00G01K13/00B60H1/0075B60H1/00792B60H1/00807G05D23/1931B60R1/06
Inventor 桑德拉·克罗莱夫斯基迪特玛·费舍尔克劳斯·斯库尔曼斯
Owner FORD GLOBAL TECH LLC
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