The present invention relates to a method for detection and / or monitoring
each comprising at least one tire wheels of a
Motor vehicle according to the features
of the preamble of claim 1 and a system for detection
and / or monitoring
each comprising at least one tire wheels of a
Motor vehicle according to the features
the preamble of claim 1.
Such a system is known, for example, from WO 95/22467
and among other things for pressure and temperature monitoring of a motor vehicle
mounted tire. In this system is in or on
the material of the tire, a transponder arranged with a
Power supply and an antenna is connected, so on a
Interrogation signal of an interrogator towards current pressure and temperature values
of the tire wirelessly transmitted
In addition to the pressure and the temperature, tire characteristics to the
Transfer query device.
Further, from WO 99/29522 a tire of a motor vehicle
known, which includes a transponder with a tire
enclosing in the circumferential direction
Antenna is provided. The antenna interacts with a receiving device,
so that data regarding
tire pressure and tire temperature as well as tire characteristics
be transmitted to the receiving device
From the DE 199 40 086 A1
For example, a tire for a motor vehicle or an aircraft is known which comprises a readable and writable transponder on which data is stored for precise identification of the tire, the data being readable by means of a reading device. Operating data of the tire, for example pressure and / or temperature values, can also be stored on the transponder and called up by means of the reader.
WO 99/52724 is a system for measuring a pressure of a tire
a motor vehicle known. This system includes a transponder,
which cooperates with an external read / inquiry unit, so that
a pressure prevailing in the tire can be constantly monitored. The query unit,
which interacts wirelessly with the transponder, has a
Display that a user of the relevant motor vehicle the current
Pressure value of the respective pressure-monitored
Invention is based on the object, a method and a system
for the optimized use of tire specific data during the
Driving a motor vehicle to create.
Task is by a method with the features of claim
1 and a system having the features of claim 1 solved.
Use of the method or the system according to the invention, the
tire-specific data so by using the processing functionality other
Systems of the motor vehicle are provided. So can the tire-specific
Data for example, an electronic suspension control and / or
be made available to an electronic vehicle dynamics system, which in
Knowing this data can work in an optimized way, since the
tire-specific data Information regarding road contact
the tire-specific data may be, for example, a
Specification of a type of tire, a tire dimension, a type, a
Manufacturer, a speed class, a capacity class,
a tire profile, material properties, a production plant,
a country code,
a date of manufacture, a date of expiry, physical
Properties and / or to act on characteristics of the tire. Furthermore
the tire-specific data also current pressure and / or temperature values
of the respective tire.
direct measurement of pressure and temperature inside the tire allows one
a tire pressure monitoring system. By simultaneously measuring
Pressure and temperature become by a so-called Isochoren evaluation one
Determination of the air mass in the tire concerned. at
Falling below a minimum tire pressure takes place by means of further processing functionality preferably
an intervention in a driving control system and / or a warning of
Storage and transmission equipment,
preferably on all wheels
of the motor vehicle in question can either
directly in the manufacture of the tire in or on the tire, for example
be integrated by vulcanization or on the rim of the respective
Rades to be ordered. In the latter case, the storage and transmission facilities
For example, integrated in a valve core.
When using in the tire material vulcanized in the tire material storage and transmission device, the runtime are independent, ie during use of the tire is invariably imprinted with tire-specific data of the storage and transmission device, preferably during tire production. This has the advantage in the production and assembly of the tire that the tire information that can be read out by the storage and transmission device, for example by means of a transponder, can be used by both the tire manufacturer and the respective vehicle manufacturer in the logistics process. For example, the tire manufacturing process can be automated. Also, quality, measurement and test data can be stored directly in the tire for later use.
the system according to the invention
or method can at the vehicle manufacturer a defined automatic
Controlling a tire from a specific tire manufacturer,
of a certain type and tire dimension to one
certain vehicle. It can also be an automatic control
and documentation of vehicle tires. This eliminates a manual
Control. Furthermore, an automatic disposition concept for a tire material
Use of a transponder technology is not a separate energy supply
the storage and transmission device
required. The tire-specific data can be from a vehicle-side and
also from an external Empfangseinrich device or reading device
be queried and recycled at any time.
the use of the tire unchangeable
tire-specific data can
in the arrangement of the storage and transmission device
on a rim, preferably in the assembly of the tire of the
Tire installer can be loaded on the data storage device.
The storage and transmission device
in this case advantageously comprises a rewritable
Memory, so that the respective data storage device during assembly
a new tire on the same rim in the same way again
can be used.
of the system or method according to the invention is preferred
designed so that they the driving behavior of the relevant motor vehicle
affected. For example, the further processing functionality is part of it
a driving stability functionality or a
driving dynamics functionality
or also a speed control functionality. To this
Way can depend on
for example, the type of tire, its physical properties and / or
of the tire pressure influence on the driving behavior of the concerned
Motor vehicle be taken.
a special embodiment
of the system or method according to the invention is used to increase the
Safety when detecting a creeping pressure loss in one
Tires set a speed limit. Additionally or alternatively
an information of the driver by means of an optical and / or acoustic warning signal.
Use of the system or method according to the invention is so
a component-specific overall information of the tires used
and the current state of the tires on an information system
of the vehicle in question
and so the danger of tire-related, critical driving situations too
minimize and optimize the handling of the motor vehicle. Thereby
the safety of the passengers. Also can always be an information
or warning of the driver
under conditions that cause damage or destruction of a
it is conceivable, the further processing functionality to
use that, through appropriate long-term observations or long-term
the running time of the tire or tires are carried out, pressure and temperature values and
the mileage of the individual, each recognizable by a coding
Tires are captured, so the chosen driving speeds
be designed individually according to the temperature loads
what, for example, in a moderate driving style
to an increase
the total mileage of the tire or can lead.
by means of further processing functionality on the basis of
and transmission equipment
the tire or on the storage and evaluation unit of the motor vehicle
stored data representing tire-specific data and driving data
Total term and
individual tires of the motor vehicle are carried out.
can further be designed so that the mounted and / or
Tire dimension is displayed on a combination instrument or vehicle display.
When recognizing a for
the motor vehicle in question impermissible tire dimension can
an optical and / or acoustic warning.
The further processing functionality can also be detected when a specific type of tire, for example a summer tire, a winter tire, a so-called all-season tire, a so-called run-flat tire or a notra enable or disable any speed limit functionality that may be required. This information can also be used in a vehicle dynamics system, so that here characteristics of certain types of tires are taken into account. In principle, a so-called speed index stored on the storage and transmission device can be converted by the further processing functionality into an automatic limiter function and / or information of the driver with regard to a tire-specific permissible maximum speed. Furthermore, the further processing functionality to the driver by displaying in a display unit, for example. A combination instrument, an indication of an appropriate, seasonal tire change, for. B. from summer tires to winter tires, by additional evaluation of the date and / or the outside temperature.
the further processing functionality can be designed such that
a so-called load index on the storage and transmission device
is put into a warning function, if permissible wheel loads are exceeded
Wheel loads not exceeded
become. Always can the driver
also transmitted information regarding adapted tire pressures
Furthermore, a warning can be given by means of the further processing functionality
issued by the driver who determines that he has exceeded his
Running tracks of the tire (s) due to excessive stress, for example
informed. This can be done considering the
History of the tire or tires, for example of times of high thermal
and / or mechanical loads, a running distance, a pressure history or
the like. Also can in this way a residual distance
calculated and in an instrument cluster or a vehicle display
can in a special embodiment
of the system according to the invention
or process also include a tire change functionality,
preferably with an optical, but also with an acoustic
Display device can interact. The tire change functionality can be so
work that by comparing the tire-specific data with
Driving data stored in a vehicle-mounted memory,
a need for a wheel change
from one axis to another or an exchange of an individual
Tire or even more tires. This can be done via a display
a combination instrument or in any other suitable way.
The system or method according to the invention can therefore on the one hand
aging of tires over
the evaluation of driving and tire data but also tire defects
for example about
a pressure gradient over
Recognize a time or a running track and according to the tire change functionality
Tire change functionality
can, for example, with a tele and remote diagnosis system and
a telematics system, so in case of impending
or already occurred defect of a tire for information
of the driver on request nearby
the location of the motor vehicle a dealer can be selected,
which can deliver a suitable tire to the breakdown point. The selection
takes place, for example, by automatic query of current offers
by means of the telematics system, for example an internet connection
uses. The appropriate tire is determined from the tire specific data
the system according to the invention by means of the remote diagnosis system
at the selected
This will be the dealer
also the coordinates provided by the telematics system
the breakdown point transmitted.
Tire change functionality
The system of the invention may include positioning functionality.
a storage of a unique position of a wheel on the relevant
Motor vehicle, without a marking of the wheels by a label
or a sticky note would be required. This can be done at a
as with a change from summer tires to winter tires or from
Winter tires on summer tires, easily the position of the
respective wheel are determined at its last assembly.
The positioning of the tires by means of the positioning functionality can for example be done in the following way. First, the ignition is turned on. When the wheels to be disassembled are still mounted, the positioning functionality is notified that a tire change is pending. This can be done by an input on a multifunction steering wheel and a corresponding display on a combination instrument. This input ignores the wheels still mounted on the vehicle by the system. Rather, a search query of the system takes place with regard to the wheels to be mounted. These wheels are uniquely identifiable by the system, for example via an identifier or a unique transmission frequency. The wheels to be mounted are arbitrary before mounting on the motor vehicle, z. B. close to the respective mounting positions, in particular next to the still mounted and dismantled, wheels arranged. In this case, attention must be paid to any order. The wheels to be mounted, their tire-specific data due to their earlier mounting on the motor vehicle in the Positionie are stored by the system are recognized and analyzed. The system then gives the fitter, for example via a display, which wheel is to be mounted at which position of the motor vehicle.
an initial assembly of a tire takes place, the respective tire specific
Data is automatically stored by the positioning functionality.
They remain there until, for example, they are disposed of
the tire is deliberately deleted
a complete set of new tires should be mounted, recognizes the
this, allowing each tire position to mount any tire
is released. If direction-dependent tires are mounted
This will also recognize the tire positioning functionality.
The corresponding information is the fitter for example on the
For example, the positioning functionality may be implemented by first entering a
Wheel is dismantled from the motor vehicle, and then one of the too
Passed or arranged at the mounting point. If the system
The wheel recognizes that, for example, in the previous year at this point
was mounted, an optical or acoustic signal is triggered. Otherwise,
there is no signal triggering.
Following this will be with the remaining wheels at the remaining positions
proceed in a similar manner. For a new tire assembly
a release takes place at all tire positions.
Furthermore, it is possible by using the system according to the invention, more
design-related properties of the vehicle in question
interrogate and control the tire system used, and
although in particular with regard to a recognition of mixed tires,
an insert of various types, such as summer tires
and winter tires, a simultaneous use of different tire makes
as well as a correct direction of rotation, which makes a review more specific
Manufacturer requirements for the assembly of the tire in question
Storage and transmission device, the
to store the immutable
tire-specific data, for example, the tire type
and the tire manufacturing date can be used as a passive system,
for example in transponder technology or chip technology
is made, or designed as an active system, the
also the tire condition during
of the operation
and the data at regular intervals to the
Receiving device transfers.
Use of a passive system will be the fixed tire-specific
Data preferably in the production of the respective tire
corresponding data memory is loaded. On this memory can at
an advantageous embodiment
after mounting the tire on a motor vehicle further data,
For example, in the form of custom start data, so imprinted
that, for example, with a corresponding hardware requirement
a unique assignment of the positions of the tires on the motor vehicle
Also to any later
Time it is possible
To impose on a passive system current tire condition data, wherein
the energy required for this purpose by means of a transponder or the like via a
suitable interface of the relevant motor vehicle on the
or transfer the tires
an active system is used, an active transmission preferably takes place at regular intervals
the tire-specific data, which includes the pressure and the temperature
of the respective tire to which the receiving device or
the storage and evaluation unit of the motor vehicle. When used
a transponder technology, i. H. when using a passive system,
the tire-specific data are determined by means of a corresponding
Polling device read from the storage and transmission device.
of the motor vehicle is preferably in each case a coding for transmission
associated with the tire-specific data, so that the vehicle-side
Memory and control unit the respective data the individual wheels in
correctly assign. This is particularly useful when
the system comprises a central receiving device, by means of
the tire-specific data of all tires of the motor vehicle detectable
are. For example, if you are using a passive system, the encoding is
from a number string or the like. When using an active
For example, the encoding system consists of specific, unique ones
Transmission frequencies or PWM signals.
The storage and evaluation unit may be a central electronic control unit of the respective motor vehicle, which is present for example in the form of a combination instrument or egg ner central computer unit independent of the system according to the invention in the motor vehicle. The tire-specific data can be stored and processed in the storage and evaluation unit and subsequently made available, for example via a full network, which is frequently present in motor vehicles, to the further processing functionality, which can be part of a vehicle dynamics system. This can be a optimal, tire-specific adaptation of the vehicle dynamics systems can be achieved. For this purpose, it is of course necessary that corresponding maps are stored in control units of the vehicle dynamics system.
Storage and transmission equipment
the individual wheels
of a motor vehicle
either with a common vehicle-side receiving device
or each with a separate, preferably in each associated
Wheelhouse arranged receiving device cooperate.
Advantages and advantageous embodiments of the subject to
The invention will become apparent from the description, the drawings and the
the system according to the invention is schematic in the drawing
is shown in simplified form and will be described in the following description
explained in more detail.
single figure shows in a highly schematic way a system according to the invention
in a motor vehicle.
In the figure, a motor vehicle designed as a passenger car is in principle 10 illustrated with a system for detecting and / or monitoring his wheels, in particular his tires 11 . 12 . 13 and 14 , Is provided. This system includes for each of the tires 11 to 14 a storage and transmission device 15 . 16 . 17 respectively. 18 , which is vulcanised into the respective tire and on the characteristics of the respective tire 11 . 12 . 13 respectively. 14 which include the type of tire, the tire dimension, the type of tire, the tire manufacturer, the speed class of the tire, the load class of the tire, the tread type of the tire, the properties of the tire material, the date of manufacture of the tire and the expiration date of the tire. The storage and transmission device is designed in transponder technology. The over the term of the tire 11 . 12 . 13 respectively. 14 unchangeable characteristics are the respective storage and transmission device 15 . 16 . 17 respectively. 18 imprinted during tire production by means of a corresponding transmission device.
The storage and transmission facilities 15 to 18 the mature 11 to 14 each interact with a pressure and temperature measuring device not shown here for the respective tire together.
The pressure and temperature values of a tire 11 . 12 . 13 respectively. 14 as well as the characteristics of this tire together form a set of tire-specific data.
The memory and transmission devices act to utilize the tire-specific data 15 to 18 with a receiving device 19 together, using the tire-specific data of each tire 11 to 14 can be read together.
The receiving device 19 is with a storage and evaluation unit 20 connected, in which of the individual wheels 11 to 14 received tire-specific data are bar cash. For further processing, the storage and evaluation unit provides 20 the tire-specific data of a further processing device provided with a further processing functionality 21 to disposal. The further processing device 21 includes a driving stability functionality 22 and a tire change functionality 23 , The driving stability functionality 22 and the tire change functionality 23 are with a display 24 connected, which is part of a combination instrument, in a dashboard of the motor vehicle 10 is integrated.
By knowing the specific data for each tire, each by means of a one-to-one encoding to the receiving device 19 can be passed, the driving stability functionality 22 optimized and adapted to the characteristics of the tires used. Furthermore, it is possible, for example, at a pressure drop in one of the tires 11 to 14 by means of the driving stability functionality 22 counteract a critical driving situation, for example, by intervention in an electronic stability program or by means of a speed reduction functionality, not shown here, the speed of the motor vehicle 10 to the extent that the occurrence of a critical driving situation is essentially precluded.
In such an intervention is of course to be considered in which driving situation, the motor vehicle 10 located at this time. For example, it is excluded that the motor vehicle 10 is braked during a high-speed ride on a highway jerky.
The tire change functionality 23 allows for a high wear of one or more of the tires 11 to 14 or even in a breakdown situation the user of the motor vehicle 10 over the display 24 to indicate the need for a tire change. Furthermore, the tire change functionality is 23 equipped with a remote diagnosis system and a telematics system, which communicates with a dealer via a suitable network can kick, so that this can deliver a suitable tire to the breakdown site.
Furthermore, the tire change functionality includes 23 a positioning functionality that ensures, for example, in a seasonal change from summer to winter tires or from winter to summer tires that the respective tires always at the same position of the motor vehicle 10 to be assembled. This is achieved in that the positioning functionality with the arrangement of a tire at the correct position after adjustment of stored on the storage and transmission device of the respective tire, singular characteristics with a vehicle-side storage and evaluation unit outputs an acoustic signal that the fitter a Information provides whether the respective wheel has ever been arranged at the relevant mounting position.
Furthermore, the tire change functionality includes 23 a reminder functionality that reminds the driver by displaying in a display unit, for example, a seasonal tire change, for. From summer tires to winter tires.