Central Information Display and MINI Joystick
Central Information Display And MINI Joystick
Central Information Display and MINI joystick
In the MINI, the display and operating concept has been adopted from BMW vehicles. This means that the leading operating system in vehicles is also available in this class of vehicle (UKL1+) for the first time. At the same time, a clear brand-typical differentiation with regard to BMW has been achieved.
The headunit for the Central Information Display can be:
- Car Communication Computer (CCC)
- 2nd generation Central Headunit and Multimedia Platform (CHAMP)
The CHAMP of the 2nd generation is functionally identical to the basic version of the Car Information Computer (CIC).
The differences compared to the High version of the CIC are:
- No entertainment server
- Navigation system with fewer functions
- No hard disk, so with memory card
Brief component description
The following components are described for the display and operating concept:
Central Information Display
With certain optional equipment (for example Radio MINI Visual Boost or navigation system), the vehicle is equipped with a Central Information Display (CID). In that case, a CCC or CHAMP is installed.
The CID is 6.5 inches high. The resolution is 640 x 240 pixels with 16-bit colour depth (as of 08/2010 800 x 480 pixels).
The Central Information Display (CID) and the central instrument panel are inserted in one another and installed together in the dashboard.
The central instrument panel is connected via a local data bus at the auxiliary instrument (KOMBI2) on the steering column.
The Central Information Display is connected to the headunit via an LVDS data line. The CID is also connected to the K-CAN.
The LVDS data line consists of 4 individual lines and shielding (formerly 8 lines and shielding).
The CID contains a phototransistor for brightness control of the LC display (depending on the ambient brightness). The LC display is heated.
MINI joystick
The MINI joystick is the central operating element for all menus on the Central Information Display. The joystick is located in the centre console behind the gearshift lever or selector lever in the case of automatic transmissions. Two buttons are arranged in front of the joystick:
- "Home" button
Calling up the main menu
- "Browse" button
Browses through the last 3 menus opened
The MINI joystick is connected via the K-CAN with the headunit. The signal for the locator lighting (terminal 58g e.g. for the buttons) is transferred on the bus.
System functions
The following system functions are described for the Central Information Display and the MINI joystick:
- Operating logic at the CID
- Brightness control of the CID
- Function and operating logic of the MINI joystick
Operating logic at the CID
The operator prompting on the CID is adapted to the MINI CI (corporate identity).
The display of the main menu consists of the following four menu items:
- Navigation
- Communication
- Entertainment
- Setup
The status line permanently displays the most important information for the various functions, for example the signal strength of the telephone or the time display (as of ignition on).
Brightness control of the CID
The CID is a display with a so-called "transflective" surface. Transflective is a word combination of "transmissive" and "reflective". The surface reflects the daylight that strikes it and makes other displays unreadable. This reflection means that the daylight is included in the light intensity of the display. The display gains brilliance. Under poor lighting conditions or in darkness, readability is ensured by the transmissive back lighting.
The display is also heated. This improves readability and ensures that the optimized operating temperature is reached quickly even at low ambient temperatures. For brightness control of the display, a phototransistor is integrated in the CID. For brightness control, the CID also evaluates the following signals:
- Dimmer signal from the footwell module (dimmer setting) via the K-CAN
- Signal via the K-CAN from the central photosensor in the instrument panel
The display brightness (deviation of brightness) can be set. Condition: the phototransistor works with a modulation between 1% and 50%. If the modulation of the phototransistor is greater than approx. 50%, only the phototransistor regulates the display brightness.
For brightness setting, the option "Brightness" must be selected in the "Setup" menu in the CID.
Function and operating logic of the MINI joystick
The signals from the buttons are read in by the MINI joystick. The joystick transforms the signals into messages on the K-CAN. The messages are processed by the headunit. The CID receives the signals for display on the LVDS data line (Low Voltage Differential Signalling). The LVDS data line involves technology that reliably transfers graphical data over a longer distance.
The joystick is tilted from the rest position, to which the joystick always returns when it is released.
The joystick has the following directions of movement:
- Tilting in 4 directions: Navigation in the menu
- Turn: selection of functions
- Press: Confirm
Notes for Service department
General notes
The value for the display brightness is personalized on the master key. The set value for deviation of the brightness is stored in the master key. The stored value (calibration of the brightness) is transferred from the currently used master key into the data memory of the CID.
NOTICE: Excess temperature with unfavorable operating conditions.
With unfavorable operating conditions, the temperature in the CID can rise strongly (fault entry "excess temperature"). In this case, the CID lowers its brightness. In extreme cases, the CID switches off its backlighting completely.
Reasons for excessive temperature in the CID can be:
- High ambient temperature
- Strong sunlight
- Strong heat from the heating duct
We can assume no liability for printing errors or inaccuracies in this document and reserve the right to introduce technical modifications at any time.