Foreword
The multifunction screen is a driver information medium, it is an ECU of the COMFORT CAN which has the following functions
- Inform the driver on components exterior to the system (date, time, choice of language, units, brightness, remote controls on C- only)
- Inform the driver on the system's interior components (autodiagnostics, trip computer, warning messages, warning log, status log...)
- Manage the radio display
- Manage the CD changer display
- Manage the navigation system display (according to equipment)
- Manage the information relating to the personalisation menu
- Inform the driver of the operating status of the parking assistance
- Manage the radiotelephone display (according to equipment)
There are 3 different multifunction screens
- Type C- multifunction screen
- Type Ct multifunction screen (see RT3 radiotelephone)
- Type Dt multifunction screen (see RT3 radiotelephone)
There are 2 levels of radiotelephone (RT3)
- Level 2: radiotelephone (RT3) with radio, telephone and on-board navigation system functions and Ct monochrome screen
- Level 3: radiotelephone (RT3) with radio, telephone and on-board navigation system functions and Dt colour screen
NoteThe radiotelephone telematic system (RT3) consists of four components, the screen CT or DT, the diversity unit, the telematic unit and the remote telematic control
Functions associated with the multi-function screen
The multifunction screen displays various items of information
- Hr
- Date
- Date and time display format
- Exterior temperature
- Audio system
- CD player
- Trip computer
- Heating/ventilation (RF version)
- Telephone integegrated into the radio (for the RT3 only)
- Hands-free kit (KML)
- Dark function (permits darkening of certain areas of the screen)
- Vehicle warnings and information (example: status of the accesses, etc...)
The multifunction screen manages the following functions internally
- Time, date
- Configuration of the language, trip computer units, etc...
- Management of the displaying of the screens
- The CD changer
Press management
Different press types allowing use of the screens
- Short press: from the time the button is released (less than 2 seconds)
- Long press: over a time threshold of 2 seconds
Type C- multifunction screen
Description
The C- multifunction screen consists of the following four parts
- A display / lighting unit
- A control interface for the man/machine interface
- An information processing unit
- A clock
The C- multifunction screen is on the COMFORT CAN
The C- multifunction screen manages the various display priorities as well as the lighting
"a": display zone
Man/machine interface
This function permits
- Defining of the driving assistance and lighting and signalling parameters
- Configuration of the display
- Selection of the language
Display configuration screen
This function permits access to the sub-menus
- Adjustment of the date and time
- Adjustment of the video brightness
- Selection of the units
- Selection of the colours
- Access to the vehicle
- Driving assistance
- Parking assistance
- Lighting and signalling
Selection of languages screen
The selection of languages screen enables the user to select the display language
Display zone of multifunction screen type C-
The type C- multifunction screens displays the information and messages using 4 display modes
Zones R1, S1 and T are superimposed over Q1 (=U1, U2, U3, U4) Q2, Q3
| key | |||
|---|---|---|---|
| display mode | display mode | display zone | information and messages shown |
| Q | zone 0 | Q2 | displaying of the date and time, route, trip computer information and audio system (tuner, CD, auxiliary, MP3), hands-free kit and CD changer information |
| Q1 | exterior temperature, tuner, CD, MP3.. hands-free kit,. telephone information, date and time | ||
| Q3 | display of the date and the time | ||
| R | zone 2 | R1 | function information message |
| Q1 | exterior temperature, tuner, CD, MP3.. hands-free kit,. telephone information, date and time | ||
| S | zone 3 | S1 | information, parking assistance, customer personalisation menu dialogue box |
| T | zone 4 | T1 | menus, list of local stations, list of tracks on a CD (not MP3), list of tracks and directory of an MP3 CD, general menu, brightness personalisation menu. setting of the date and time, selection of the type of profile, language personalisation menu, selection of the options, air conditioning programming menu, configuration menu... |
| U | zone 5 | U1 | exterior temperature |
| U2 | telephone symbol | ||
| U3 | telephone/radio information | ||
| U4 | hr | ||
| V | zone 6 | Q2 | displaying of the date and time, route, trip computer information and audio system (tuner, CD, auxiliary, MP3), hands-free kit and CD changer information |
| Q1 | exterior temperature, tuner, CD, MP3.. hands-free kit,. telephone information, date and time | ||
| Q3 | display of the date and the time | ||
Type CT and type DT multifunction screen
Key
- B: CT screen display zone
- C: DT screen display zone
W: type Ct multifunction screen (monochrome)
X: DT type multifunction screen (colour)
Presentation of the operation of the CT and DT display zones
The display zones of the Ct and Dt multifunction screens are managed by a management system referred to as the "graphic server"
Each information group is divided into applications
- Trip computer
- Radiotelephony
- Navigation
Each application transmits information to the graphic server
The graphic server decides which information should be taken into account and defines its display zone
The user activates an application, the graphic server allocates the display resource in zone Z0 to it and possibly the audio resource
This activation is carried out via the AUDIO, NAV, TRIP and TEL buttons which permit switching from one application to another. the current variable is then updated. it is known by the graphic server which can carry out the application display requests in relation to the active zones
Random events such as the dialogue boxes, warning messages, may result in the appearance of new display zones
Display zone of multifunction screen type CT
Key
- L: input field 1
- M: input field 2
- N: 1 button
- P: 2 button
- Q: 1 button
- R: 2 button
- S: item selected
- U: item 1
- V: item 2
- W: item 3
- T: symbol
| display zone | description of the display zone |
|---|---|
| Z0 | displaying of the date, route, trip computer information, radio information (tuner, CD, auxiliary), dual-zone or mono-zone air conditioning setting zone. AUDIO or DATE application. NAVIGATION application. trip comp application (trip computer). TELEPHONE application |
| Z1 | display zone permitting the inputting of information by the user (timed to 30 seconds). depending on the types of application, it consists of various input fields and buttons |
| Z2 | display zone permitting the displaying of various messages and displays which are not present in zone Z0. zone Z2 can be displayed or cleared by external events (example: message from the BSI1). it permits the displaying of applications which are not stored as the current application. the default timing is 7 seconds |
| Z3. Z3a: display zone. Z3b: dialogue zone | simple priority display zone or dialogue zone associated with buttons operated by the control keypad. zone Z3 is timed (the controlled time T is defined for each zone when described by its applications). the default timing is 30 seconds. the Z3 zones are superimposed over each other, in accordance with a level of priority allocated to each zone |
| Z4. Z4a: scrolling list. Z4b: menu. Z4c: contextual menu | display zone in the form of a menu, contextual menu and list. the contextual menu is displayed in zone Z4 windowed with a symbol representing the application. the Z4 zone is timed and its value is fixed at 30 seconds |
| Z5a | hr |
| Z5b. Z5c. Z5d | display zone restricted by order of priority. in the event of several applications requesting display in zone Z5b, the priority rules are applied. priority 0, telephone. priority 1, voice command. priority 2, radio (mute, TA, frequency, etc.). priority 3, empty |
| exterior temperature | |
| telephone information | |
| Z6 | displaying of the screen background. display of the date and the time when the guidance is not active |
Display zone of multifunction screen type DT
| display mode | display zone | description of the display zone |
|---|---|---|
| Z0, Z6 | zone 0 | displaying of the date, route, trip computer information, radio information (tuner, CD, auxiliary), dual-zone or mono-zone air conditioning setting zone. AUDIO or DATE application. NAVIGATION application. trip comp application (trip computer). TELEPHONE application |
| zone 6 | displaying of the screen background. displaying of the air conditioning or of the clock when the guidance is not active | |
| Z1 | zone 1 | display zone permitting the inputting of information by the user (timed to 30 seconds). depending on the types of application, it consists of various input fields and buttons |
| Z2 | zone 2 | display zone permitting the displaying of various messages and displays which are not present in zone Z0. zone Z2 can be displayed or cleared by external events (example: message from the BSI1). it permits the displaying of applications which are not stored as the current application. the default timing is 7 seconds |
| zone Z2_1 | display zone superimposed over zone Z0 and over zone Z6. it is used for the complete displays or the messages of the following applications. radio or telephone. audio/telephone (communication in progress). navigation (press of the button). extended zone Z2_1 appears following an action by the user | |
| zone Z2_2 | display zone centred on the screen. it is used for varied information. BSI1 warnings. ice warning. audio settings (bass, fader etc.). zone Z2_2 appears following an action by the user or when a system parameter changes status | |
| Z3 | zone 3 extended | simple priority display zone or dialogue zone associated with buttons operated by the control keypad. zone Z3 is timed (the controlled time T is defined for each zone when described by its applications). the default timing is 30 seconds. the Z3 zones are superimposed over each other, in accordance with a level of priority allocated to each zone. in the event of several applications requesting display in zone Z3, the priority rules are applied (the 0 level is the highest priority). priority 0, telephone priority (entry call, SMS reception, etc.). priority 1, inputting priority (input of PIN, PUK codes etc.). priority 2, dialogue priority (information or error messages). priority 3, trip computer priority |
| Z4 | zone 4 | display zone in the form of a menu, contextual menu and list. the contextual menu is displayed in zone Z4 windowed with a symbol representing the application. the Z4 zone is timed and its value is fixed at 30 seconds |
| Z5 | zone 5a | hr |
| zone 5b | display zone restricted by order of priority. in the event of several applications requesting display in zone Z5_2, the priority rules are applied. priority 0, telephone. priority 1, voice command. priority 2, radio (mute, TA, frequency, etc.). priority 3, empty | |
| zone 5c | exterior temperature | |
| zone 5d | telephone information |
General zone cohabitation rules
The following table gives the general strategy for superimposing zones as a function of the zone present on the screen and the new zone to display
X: as this table relates to both screens, there are some cases which cannot occur
For example a Z2 zone (CT screen) can not appear in zones Z2_1, Z2_2 and Z2 extended (DT screen)
| display zone superimposition rules | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| present zone | zone of appearance | ||||||||
| - | Z6 | Z0 | Z1 | Z2 | Z2a | Z2b | zone Z2 extended | Z3 | Z4 |
| Z6 | - | S | S | S | S | S | S | S | S - - - |
| Z0 | - | E | S | S | S | S | S | S | S |
| Z1 | - | - | S | - | - | - | - | S | S |
| Z2 | - | - | E | E | X | X | X | E | E |
| Z2a | - | - | E | X | E | E | E | E | E |
| Z2b | - | - | E | X | E | E | E | E | E |
| zone Z2 extended | - | - | E | X | E | E | E | E | E |
| Z3 | - | - | - | - | - | - | - | S | - |
| Z4 | - | - | S | - | - | - | - | S | S |
Key
- E: crushing
- S: superimposition to the present zone (possibility to return to this zone using the ESC button for example)
- -: impossible configuration