Taximeter, Function - GF82.25-P-2015FG
Model 213 up to model year 2021 with code 336 (Taximeter console in OCP) with code 965 (Taxi/rental car - electrical pre-installation)
Function requirements, general
- Taximeter (A50) calibrated to vehicle
Taximeter in general
The taximeter determines the fare and shows this on the taximeter display.
The taximeter has a total of five modes:
"Off", "Free", "Occupied", "Cash register" or "Intermediate shift".
The taximeter function consists of the following subfunctions:
- Function sequence for activating taximeter (from "Off" mode to "Free" mode)
- Function sequence for determining the fare
The taximeter is not a genuine component developed by Daimler AG and it is not sold by Daimler AG. This means that the operation and function may differ depending on the vehicle involved.
Additional function requirements for activating taximeter (from "Off" mode to "Free" mode)
- Taximeter in "Free" mode (indicated by "Tariff F" text)
- Vehicle standing still (v = 0 km/h)
Function sequence for activating taximeter (from "Off" mode to "Free" mode)
The taximeter is manually activated by pressing the button on the taximeter. The fare is determined from the moment the vehicle starts moving (v > 0 km/h).
If the taximeter has not been manually activated, but a passenger sitting on the front passenger seat is being transported, the special-purpose vehicle multifunction control unit (N26/9) automatically activates the taximeter over the multifunction CAN (CAN K), as soon as the vehicle starts to move.
To do so, the multifunction control unit evaluates the following input factors:
- Status of button on taximeter
- Front passenger seat occupied status
- Vehicle speed
The taximeter reads in the status of the button on the taximeter directly.
The Supplemental Restraint System control unit (N2/10) determines the occupation status for the front passenger seat and sends corresponding information over the user interface CAN (CAN HMI), electronic ignition lock control unit (N73), interior CAN (CAN B), multifunction control unit and the multifunction CAN to the taximeter. The instrument cluster (A1) sends the vehicle speed over the user interface CAN, electronic ignition lock control unit, interior CAN, multifunction control unit and the multifunction CAN to the taximeter. If the taximeter was manually or automatically activated ("Occupied" mode), the multifunction control unit switches off the roof sign lamp (E14/4) (with code 342 (Roof sign connection for taxi)).
The roof sign lamp is switched on or off automatically only, if the "roof sign" was activated beforehand in the "Taxi" menu in the instrument cluster. Otherwise, the roof sign lamp remains switched off.
The taximeter is automatically switched off as standard, when the vehicle is locked from the outside and the taximeter is in the "Free" mode or in "Intermediate shift" mode.
Function sequence for determining the fare
The taximeter calculates the fare based on the distance traveled. For each kilometer driven, the taximeter calculates a fixed price.
The distance traveled is defined by the wheel speed taking the tire circumference into account. The Electronic Stability Program control unit (N30/4) sends the wheel speed over the chassis-FlexRay (Flex E), electronic ignition lock control unit, interior CAN, multifunction control unit and the multifunction CAN to the taximeter.
The fare calculation is subject to the Weights and Measures Act. The valid fare in each case is received by the taximeter through the calibration.
If the taxi is equipped with a card reader and printer (A50/2) (accessories), the fare due can be settled by card payment and a receipt can be printed out. The taximeter sends the print out request over the multifunction CAN to the card reader and printer.
| Electrical function schematic for taximeter | PE82.25-P-2065-97DBA | ||
| Overview of system components for taxi/rental vehicle | GF82.25-P-9890FG |