Vehicle radio functions controling device

0001The invention relates to a device for controlling the functions of a Car radios, having a control unit which, in response to entered by means of a control unit operating instructions, control signals to provides functional units of the car radio.

0002Such devices are already known. For example, the Operating unit known car radio a fader, by means which the user the volume of the signals of the rear Speakers of a motor vehicle are radiated, relative to Volume of the signals of the of the front speakers be radiated motor vehicle, can change, so that a desired Hearing impression arises. Furthermore, the operating unit known Car radios on a balance control, by means of which the volume of of the speakers emitted on the left side of the vehicle signals relative to the volume of the right of the speakers on the Vehicle side radiated signals can be changed. Further exhibit known car radios and an operating element for activating and Deactivation on a Dolby surround sound mode in which the reproduced signals have a desired surround sound effect.

0003Furthermore, already car radios with speed-dependent known volume control. This takes into account, that associated with higher vehicle speeds Noise by example the wind, the engine and the Rolling of the tires will be stronger and, the intelligibility of the means the speaker reproduced car radio signals only continue remains when the playback volume is increased.

0004From EP 0669711 is a car radio sound reproduction device with an in Depending controllable by external noise audio amplifier arrangement known. This car radio sound reproduction device used by the speed and / or rotational speed-dependent signals to control the volume, using a stored, vehicle-specific characteristic curve, which is stored in a microcomputer is. The disadvantage of this invention is that the individual listening habits the driver will only be considered insufficient. The characteristic is Vehicle specific set and modified using only one value.

0005Starting from this prior art, the invention has the task providing a device with the preamble of claim 1 further develop specified characteristics so that the driver of a Vehicle of the necessity of the operating unit by means of a control perform the functions of the car radio, is partially relieved and at the same time an individual sound set the listening habits of a Driver occurs.

0006This object is achieved in a device having the in the preamble of Claim 1 features specified by the in the characterizing part solved the stated claim 1. advantageous Refinements and developments of the invention result from the dependent claims.

0007The advantages of the invention consist in particular in that, depending of current vehicle conditions, in particular the driving speed, and other detectable states of the vehicle, one or more Playback parameters of the car radio automatically in the sense of individual and driver-specific audio enhancement be changed. This allows the driver of the vehicle is exempt from the need to pass this Settings manually via the control unit of the car radio having to adjust.

0008Further advantageous features of the invention result from the Explanation of embodiments with reference to FIGS.

0009It shows:<dl tsize="8"><dt>- FIG 1</dt><dd>an exemplary embodiment of a device according to the invention;</dd><dt>- FIG 2</dt><dd>a further embodiment of a device according to the invention</dd></dl>

0010The apparatus of FIG 1 comprises a control unit 1, a Memory unit 3, an operation unit 4, functional units A1 to An of a Car radios and vehicle condition detectors E1 to En.

0011In the memory unit 3, a characteristic curve field is stored, via which the control unit 1 automatically the settings of the functional units A1 up on the car radio to the current vehicle condition, which the Control unit 1 detected by the vehicle state detectors E1 to En and recognizes adapts. This ensures that a constant Sound impression is guaranteed in the motor vehicle.

0012The characteristic field is made up of different characteristics. respectively for each functional unit A1 to the car radio for each detected vehicle state, which on the vehicle state detectors is detected E1 to En, a characteristic present. These characteristics are for example, first factory on the specific vehicle type preset. Modified the driver of the vehicle a Vehicle state such as the travel speed, so recognizes the Control unit 1, this means the vehicle state detectors E1 to En and adjusts the settings of the functional units A1 to An to this new Vehicle state.

0013In addition to recording vehicle conditions, other factors are at the generation of the characteristic field considered. Furthermore, the Höhrgewohnheiten the driver in terms of navigation announcements, Traffic reports, etc. into consideration. There will also be influence how change the driver Höhrgewohnheiten when example phone. In other is taken into account which, in the seat occupancy Vehicle is present. These influences are also in Kennlininfeld considered.

0014To take account of the specific listening habits of a driver changes, the control unit 1, the characteristic diagram in the storage unit 3 by the driver's listening habits from. About the Vehicle condition detectors E1 to En are different current vehicle conditions detected. So detects the vehicle state detector E1 for example, the speed of the vehicle, the Vehicle state detector E2, the current engine speed, Vehicle state detector E3 the state of the vehicle window, ie whether and which windows of the vehicle are opened or closed, Vehicle state detector E4 the current state of the sliding roof, E5 the current fan speed of ventilation, etc. The functional unit A1 of the car radio for example, the Volume control, the functional unit A2, the treble, the Functional unit A3, the Bass control, functional unit A4 Fader, functional unit A5 being panned, the Functional unit A6 the equalizer control, the functional unit A7 Dynamic range compression scheme, the functional unit A8, the DSP control etc. All these settings can be the driver of the Setting the motor vehicle via the control unit. 4 The control unit 1 is designed so as to so-called a performs auto-detection mode. In this self-recognition mode registered, the control unit 1 changes the driver of a Motor vehicle at the functional units A1 to An by means of the Operation unit 4 performs, while the motor vehicle is in operation. at the same time asks the control unit 1 to the current vehicle condition on the Vehicle condition detectors E1 to En and stores the current values the vehicle state detectors E1 to En and the corresponding Settings of the functional units A1 to An in the storage unit 3 from. This results in over a period considered a Collection of adjustment data which the listening habits of the driver represent the vehicle. From these data, then the controller 1 determines a new characteristic field for the settings of the functional units A1 to the car radio, in Depending on the vehicle states, which the control unit 1 via the Vehicle condition detectors E1 to En determined, and changes the previous factory-set of characteristics from or calculated a new Characteristic curves.

0015For example, if the side window is opened in the vehicle and regulates the Driver volume upwardly out, this is detected, the control unit 1, because the driver operates the operating unit 4. As soon as the driver For example, adjusting the volume has finished, determines the Control unit 1, the vehicle state data based on the Vehicle condition detectors E1 to En and the settings of the Functional units A1 to the car radio and stores this data. Now Closes the driver the open window again, this is recognized by the Control unit 1 and lowers the volume to the previous level.

0016Particularly suitable this procedure is with respect to the Cruising Speed. Increases the driver the speed of travel, be the drive noise is greater. In this case, the driver is the Increase the volume of the car radio to a uniform Volume impression to obtain. the driver Modified hence the Speed ​​and also the settings of one or more Functional units A1 to An of the car radio, this detects the Control unit 1 and stores these data in the storage unit 3 from.

0017Well suited this approach is also in relation to the blower level the ventilation. Increases the driver the blower level of ventilation, are also the noise in the vehicle interior is larger, at the same time, the aural impression the car radio worse. In this case, the driver, for example, the Increase the volume of the car radio to a uniform Volume impression to obtain. the driver Modified hence the Geläsestufe the ventilation of the vehicle and also the volume of the Car radios, so detects this, the control unit 1 and stores this data in 3 from the memory unit.

0018Now there are several such data in memory before, ie different Vehicle conditions and this changed settings of one or more the functional units A1 to An, as calculated and interpolated the Control unit 1 between the nodes further intermediate values ​​and calculated in this way a new characteristic field that the adapted driver's listening habits.

0019Modified a driver several settings of the functional units A1 to An under changing driving conditions of the vehicle, so the averages Control unit 1, the individual characteristics of the family of characteristic curves related. Of individual settings and averages the settings of the functional units A1 to An. This means that, in the event that the characteristic field at Increasing the driving speed, for example, a volume increase and at the same time having a window of the vehicle is opened, would also lead to an increase in volume, the control unit 1 Volume nonlinearly adjusted but an average of the different Kennlininen the performance curves determined.

0020the driver Altering one of the detected vehicle conditions, recognizes this is the control unit 1 and adjusts the settings of the functional units A1 to automatically determined via the characteristic curves according to the driver recent listening habits from.

0021Particularly advantageous has proven the settings of Functional units A1 to An and the associated vehicle states, which are determined by the vehicle state detectors E1 to En, only then save it and adjust the characteristic curves, or the Settings of the functional units A1 to An via the characteristic curves adapt if changes vehicle condition over a longer Period was approximately constant. As time have about three Seconds proved advantageous. Hereby it is avoided that about one Open short and / or close a window, or a short Acceleration process at the same time a modification of the Characteristics field and / or an automatic adjustment of the Settings of the functional units A1 leads to An. This has the advantage that it does not change to a constant of Settings of the functional units A1 comes to An.

0022But there is definitely the possibility by each operation of the Operating unit 4 adjust the characteristic curves. This has the advantage that any change in the functional units A1 to An immediate influence on the Of characteristics has.

0023In addition, it has proven advantageous, the values ​​of the settings of the Functional units A1 to An respectively over a period of time, wherein same vehicle conditions to convey and the characteristic curves on the adapt averaged values, since the driver's listening habits of subject to certain motor vehicle variations. is through an averaging this scattering averaged. The averaging time is dependent on the degree of Scattering. In case that the variations are very strong, or that several drivers is used with significantly different Höhrgewohnheiten the vehicle on it by averaging over a short period possible fast the different listening habits to respond.

0024In a further advantageous embodiment of the invention, that an identification of the driver is carried out and one for each driver created individual Höhrerprofil, ie an individual characteristic curves becomes. A driver identification is thereby possible that a for each driver individual identification code is assigned, or that the carried Indentifizierung via a transponder in itself Motor vehicle key is and nowadays as prior art in Area immobilizers is to be considered. About the vehicle key - for each driver must therefore ever a key exist, each Key must be coded differently - a driver is identified.

0025A further advantageous embodiment of the invention with reference to FIG 2 described.

0026The apparatus of FIG 2 comprises a control unit 1, a Converter circuit 2, a memory unit 3, an operation unit 4, Functional units A1 and up to a car radio Vehicle condition detectors E1 to En.

0027This embodiment differs from the first Embodiment essentially by the fact that the Vehicle condition detectors E1 to En vehicle side already anyway are provided to a conversion circuit 2 signals on a vehicle-mounted data bus 8 to provide. To the Data bus of the vehicle 8 a plurality of vehicle modules or Vehicle systems such as the braking system 5, a navigation system 6, and an alarm system connected 7. Further to this data bus 8 also the control unit 1 of the car radio connected. This made Control unit 1 access to the information presented on the data bus 8 Vehicle condition signals. By means of the control unit 1 is then carried out, as well as in the first embodiment, an evaluation of the different Vehicle conditions and the means of the control unit 4 of the car radio entered operator commands to control signals for functional units A1 to produce up to, said control signals - as described above - are dependent on the respectively present state of the vehicle.

0028In a further advantageous embodiment of the invention, that via the control unit 4 is a characteristic diagram from the memory 3 can be deleted, or that a characteristic field by another, For example, the factory-set, can be replaced, or that the characteristic curves can be corrected manually via the control unit. 4 In further provides for the automatic adjustment of the To activate functional units via the control unit 4 and / or disable. In further provided individual bases of to correct characteristic curves manually.