DE102013215148A1 - Method for operating a motor vehicle - Google Patents

Abstract

The invention relates to a method for operating a motor vehicle (4), in which a location-related value for a humidity as at least one meteorological environmental parameter of the motor vehicle (4) is provided to the motor vehicle (4) via the Internet.

Description

The invention relates to a method and an arrangement for operating a motor vehicle.

State of the art

To operate a motor vehicle can as information u. a. Ambient parameters of the motor vehicle, for example, an outside temperature, via a sensor, here a thermometer, the motor vehicle are determined and used.

A device for monitoring an air pressure sensor in a vehicle by means of an absolute pressure measurement is in the document DE 103 47 788 A1 described. In this case, it is provided to evaluate the absolute pressure on the basis of a weather signal. For this purpose, the device is coupled to a communication device, so that it is possible for the device to receive the weather signal via the Internet. In addition, the device also includes a control unit, which is designed, inter alia, to control values for the pressure.

Disclosure of the invention

Against this background, a method and an arrangement with the features of the independent claims are presented. Further embodiments of the invention will become apparent from the dependent claims and the description.

The presented method is suitable for a motor vehicle having a control device and a communication device with which an automatic Internet access ("Internet of things and services") is to be made available via this communication device between the motor vehicle and the Internet via electromagnetic radio waves exchange, ie to receive and to send.

In this case, values of meteorological and therefore weather-related environmental parameters are to be provided to the control unit as information in configuration and to be read into the control unit. These location-related, meteorological environmental parameters can be used to check the plausibility of values of such meteorological environmental parameters that are measured and / or detected by sensors of the motor vehicle. Plausibility checks for the controller are usually based on information provided by the environment parameters. Thus, a designed as an environmental sensor sensor of the motor vehicle, the z. B. is designed to detect the pressure or temperature in the environment of the motor vehicle, be dispensed with.

The access of the controller to the Internet via the communication device can, for. B. also be used for remote diagnosis and / or fleet management. In addition, in the embodiment of the method as environmental parameters and thus as environmental information read values for a current humidity, which are not available for the controller when a sensor for determining the humidity is not present.

With a current location-related value for the humidity, a current dew point is determined when performing the method, the z. B. in an exhaust system of the motor vehicle, which is designed for a low-pressure exhaust gas recirculation (EGR), is an operating parameter to be considered. If a current value for the air humidity is known via the Internet, a target exhaust gas recirculation rate can be controlled and adjusted via the control unit, as nitric oxide are dependent on the humidity (NO _x) emissions and vary with it.

The method makes it possible to dispense with sensors for acquiring meteorological environmental parameters, since current, location-related values for these environmental parameters, eg. B. for air temperature, air pressure or humidity can be detected by accessing an information service on the Internet. If the motor vehicle has at least one sensor for detecting values of at least one meteorological environmental parameter, these recorded values can be compared with values for the at least one meteorological environmental parameter provided via the information service from the Internet, and made plausible.

When the method is carried out, the controller, by way of access to the Internet, which is to be provided with the communication device, receives values for at least one meteorological and / or weather-related environmental parameter, such as pressure, temperature, from a server provided for this purpose and / or web service (Internet service) and / or to inquire about humidity.

For this purpose, via the control unit and / or the communication device via a position or location service, for example. GPS (Global Positioning System), a current location of the motor vehicle, even in the event that this moves determined. For determining the current, location-related or location-dependent value of the meteorological environment parameter of the motor vehicle, the control device is designed to send a request to the information service for providing meteorological environment parameters via the communication device, this request providing information about the current location of the motor vehicle includes. The information service, which is provided via a server in design, provides consolidated, locally resolved information about values over at least one environment parameter. The at least one environmental parameter is on the Internet, z. Via weather station data. Depending on the application, the environmental parameters from the Internet are used by the control unit for the plausibility of values of a sensor and / or as a replacement for values of such a sensor.

In an embodiment, values of meteorological environmental parameters for controlling and therefore for controlling and / or regulating an operation of an internal combustion engine of the motor vehicle are used by the control unit. In this case, a combustion of fuel to be carried out by the internal combustion engine is to be adapted to current conditions by using a current, location-dependent value of the at least one meteorological environmental parameter, as a rule the air pressure, the air temperature and / or the air humidity. Thus, for example, the boost pressure of a turbocharger can be lowered when the motor vehicle is at high altitude, whereby the turbocharger of an exhaust system of the motor vehicle can be protected.

Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination indicated, but also in other combinations or in isolation, without departing from the scope of the present invention.

Short description of the drawing

1 shows a schematic representation of a motor vehicle with an embodiment of the arrangement according to the invention when carrying out an embodiment of the method according to the invention.

Embodiment of the invention

The invention is illustrated schematically with reference to an embodiment in the drawing and will be described below in detail with reference to the drawings.

1 shows a schematic representation of a on a street in one place 2 located and / or moving motor vehicle 4 that is an internal combustion engine 6 for burning fuel and an exhaust system 8th for purifying exhaust gas of the internal combustion engine 6 having. In addition, the motor vehicle 4 an embodiment of the inventive arrangement 10 to carry out an embodiment of the method according to the invention.

1 also shows a in the vehicle 4 arranged communication device 12 , which is designed to electromagnetic waves 14 radio-supported with a permanently installed communication device 16 Exchange signals that include data and / or information. To illustrate meteorological and / or weather-related environmental parameters that the motor vehicle 4 while driving in the place 2 exposed, shows 1 furthermore a weather phenomenon 18 ,

The for operating the motor vehicle 4 trained arrangement 10 includes as a component the communication device 12 designed to communicate with the communication device 16 communicate wirelessly while using the Internet to the current location 2 of the motor vehicle 4 related meteorological environmental parameters for the motor vehicle 4 to receive and the motor vehicle 4 provide.

Current, location-related values of meteorological environmental parameters are provided by at least one weather station to a meteorological Internet service. The communication device shown here 16 is connected to the Internet and trained to the communication device 12 of the motor vehicle 4 provide a wireless internet connection through which the communication device 12 Inter alia, with the meteorological Internet service can exchange data. It is possible that the communication device 12 from the communication device 16 Receive data from the Internet and transmit data to and / or the Internet.

Hereby of the communication device 12 Information that is usually to be transmitted to the meteorological internet service via the Internet includes, among other things, information about the location 2 on which the motor vehicle 4 currently located. Such information about the current location 2 on which the motor vehicle 4 is currently located and therefore stops here are from a tracking module 20 to determine the current location 2 or a current position of the motor vehicle 4 determined by communication with a global positioning system (GPS). This location module 20 is also as a component of the arrangement 10 and the motor vehicle 4 educated.

The order 10 also includes a control unit 22 , which is designed to be one of the communication device 12 received value for the at least one meteorological environment parameter for controlling and thus for controlling and / or regulating a function of the motor vehicle 4 , here the internal combustion engine 6 and / or the exhaust system 8th as at least one component of the motor vehicle 4 to use.

This will be done by the controller 22 depending on the location-related value of the at least one meteorological environment parameter at least one desired value for an operating parameter of the at least one component of the motor vehicle 4 predetermined or adjusted, wherein at least one actual value for the operating parameter is controlled and adapted to at least one such desired value.

In the embodiment of the method for operating the motor vehicle presented here 4 is considered to be the at least one meteorological environmental parameter at the location 2 prevailing value for the humidity provided over the internet.

In addition, a location-specific or in the place 2 prevailing value of at least one other meteorological environmental parameter is provided from the Internet. As the at least one further meteorological environmental parameter, a location-related value of the air temperature and / or the air pressure is or are provided via the Internet and for carrying out the method and / or for operating the exhaust system 8th of the motor vehicle 4 used.

In this case, in an embodiment, the value for the at least one meteorological environment parameter for controlling a dew point of a low-pressure exhaust gas recirculation of the exhaust system 8th of the motor vehicle 4 used, the exhaust system 8th is designed here for low pressure exhaust gas recirculation. Thus, here with the value of the humidity as the at least one meteorological environmental parameter, the dew point as an operating parameter of at least one component of the exhaust system 8th certainly.

In addition, by exchanging positional data between the positioning system and the locating module 20 the current location 2 of the motor vehicle 4 determined. An envisaged query for requesting the value for the at least one meteorological environment parameter generated by the communication device 12 is transmitted to the meteorological Internet service, includes information about the current location 2 of the motor vehicle 4 , The location-specific value for the at least one meteorological environment parameter for the current location 2 becomes the communication device 12 provided via the internet.

Furthermore, with the location-related value provided from the Internet for the at least one meteorological environmental parameter, a value for this at least one environmental parameter is obtained from a sensor 24 of the motor vehicle 4 and / or the arrangement 10 measured, plausibility.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10347788 A1 [0003]

Claims (10)

Method for operating a motor vehicle ( 4 ), in which a location-related value for a humidity as at least one meteorological environmental parameter of the motor vehicle, the motor vehicle ( 4 ) is provided via the Internet. Method according to claim 1, wherein a location-related value of an air temperature and / or of an air pressure as at least one further meteorological environmental parameter of the motor vehicle ( 4 ) the motor vehicle ( 4 ) is provided from the Internet. Method according to Claim 1 or 2, in which a value for the at least one meteorological environmental parameter for operating an exhaust system ( 8th ) of the motor vehicle ( 4 ) is used. Method according to one of the preceding claims, wherein a value for the at least one meteorological environment parameter for controlling an exhaust gas recirculation of the motor vehicle ( 4 ) is used. Method according to claim 3 or 4, wherein with the value of the at least one meteorological environmental parameter a dew point of at least one component of the exhaust system ( 8th ) is determined. Method according to claim 5, wherein a value of the dew point of an exhaust system ( 8th ) is determined for low-pressure exhaust gas recirculation. Method according to one of the preceding claims, in which a current location ( 2 ) of the motor vehicle ( 4 ), wherein a query for obtaining the value for the at least one meteorological environment parameter contains information about the current location ( 2 ) of the motor vehicle ( 4 ), wherein the location-related value for the at least one meteorological environment parameter for the current location ( 2 ) provided. Method according to one of the preceding claims, in which with the location-related value for the at least one meteorological environment parameter which corresponds to the motor vehicle ( 4 ) is provided via the Internet, a value for this at least one environment parameter that is provided by a sensor ( 24 ) of the motor vehicle ( 4 ), is made plausible. Arrangement for operating a motor vehicle ( 4 ), which is a communication device ( 12 ), which is adapted to be connected via the Internet to a communication device ( 16 ) for providing meteorological environment parameters and a provided, location-related value for a humidity as at least one meteorological environmental parameter of the motor vehicle ( 4 ) from the communication device ( 16 ) to recieve. Arrangement according to Claim 9, which has a locating module ( 20 ) for determining a current location ( 2 ) of the motor vehicle ( 4 ) and / or a control device ( 22 ) adapted to receive a message from the communication device ( 16 ) received value for the at least one meteorological environment parameter of the motor vehicle ( 4 ) for controlling a function of the motor vehicle ( 4 ) to use.

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