Difference between revisions of "Distronic"

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N47-5 (ESP, BAS control unit):
 
N47-5 (ESP, BAS control unit):
  
'''Note: W209/215/220 have a different interface compared to W211/219/230, they have a different connector. (TODO: Figure out what it is)'''  
+
'''Note: W209/215/220 have a different interface compared to W211/219/230, they have a different connector for OLD ART1 sensors!!!'''  
  
 
*DTR controls engine and braking torque interface of ESP unit.
 
*DTR controls engine and braking torque interface of ESP unit.
Line 123: Line 123:
 
N93 (Central Gateway control unit):
 
N93 (Central Gateway control unit):
  
* Lower control panel (N72) -> CAN-B through N93 -> CAN-C DTR
+
*Lower control panel (N72) -> CAN-B through N93 -> CAN-C DTR
** DTR switch OFF or ON (proximity warning function)
+
**DTR switch OFF or ON (proximity warning function)
** Specification from the DTR distrance potentiometer
+
**Specification from the DTR distrance potentiometer
  
 
N80 (Steering column module):
 
N80 (Steering column module):
  
* ESP/BAS <- Steering column module:
+
*ESP/BAS <- Steering column module:
** Pushbuttons OFF / SET MEMORY / SET ACCELERATION / SET DELAY
+
**Pushbuttons OFF / SET MEMORY / SET ACCELERATION / SET DELAY
** Variable speed limiter ON/OFF (except USA and Japan)
+
**Variable speed limiter ON/OFF (except USA and Japan)
** Cruise control switch implausible
+
**Cruise control switch implausible
** Steering angle (from 0 to 720 degrees)
+
**Steering angle (from 0 to 720 degrees)
** Steering angle sign (right/left)
+
**Steering angle sign (right/left)
** Steering angle sensor defective
+
**Steering angle sensor defective
  
 
A1 (Instrument cluster)
 
A1 (Instrument cluster)
  
* ESP/BAS <- Instrument cluster:
+
*ESP/BAS <- Instrument cluster:
** MPH instead of KMH (variable speed limitation)
+
**MPH instead of KMH (variable speed limitation)
** Winter tire maximum speed
+
**Winter tire maximum speed
* ESP/BAS -> Instrument cluster:
+
*ESP/BAS -> Instrument cluster:
** Distronic distance warning lamp
+
**Distronic distance warning lamp
** Distronic warning tone
+
**Distronic warning tone
** Recognition of a stationary object (e.g. stationary vehicle)
+
**Recognition of a stationary object (e.g. stationary vehicle)
** Switch display to Distronic display
+
**Switch display to Distronic display
** Distronic switched on (no vehicle ahead)
+
**Distronic switched on (no vehicle ahead)
** Speedometers
+
**Speedometers
** Switch Distronic segment display on
+
**Switch Distronic segment display on
** Vehicle detected ahead
+
**Vehicle detected ahead
** Distronic switched on (Proximity control active)
+
**Distronic switched on (Proximity control active)
** LIMIT in display (except USA, Japan)
+
**LIMIT in display (except USA, Japan)
** Distronic Error
+
**Distronic Error
  
 
TCU (Transmission control unit):
 
TCU (Transmission control unit):
  
* BAS/ESP <- TCU
+
*BAS/ESP <- TCU
** Actual gear
+
**Actual gear
** Target gear
+
**Target gear
** Kick-down
+
**Kick-down
** Transmission code
+
**Transmission code
** Transmission emergency running mode
+
**Transmission emergency running mode
* BAS/ESP -> TCU
+
*BAS/ESP -> TCU
** Shift curve offset
+
**Shift curve offset
** Suppression of dynamic full load position
+
**Suppression of dynamic full load position
** Maintain gear position
+
**Maintain gear position
** Active downshift required
+
**Active downshift required
  
 
ECU (PCM)
 
ECU (PCM)
  
* BAS/ESP <- ECU
+
*BAS/ESP <- ECU
** Vehicle code
+
**Vehicle code
** Adjusted engine torque for traction control
+
**Adjusted engine torque for traction control
** Engine speed
+
**Engine speed
** Minimum and maximum engine torque, engine drag torque
+
**Minimum and maximum engine torque, engine drag torque
** Kickdown recognition
+
**Kickdown recognition
** Deceleration fuel shutoff
+
**Deceleration fuel shutoff
* BAS/ESP -> ECU
+
*BAS/ESP -> ECU
** Reduction or increase of the engine nominal torque
+
**Reduction or increase of the engine nominal torque
  
 
<br />
 
<br />

Latest revision as of 15:42, 6 December 2022

Radar

Name: ART2 B (aka Distronic Plus), "ART210", DTR2

Mercedes part ID: A89 (A89b1 DTR Radar Sensor and A89n1 DTR Control Module integrated in single unit)

This device has only a single connector. This connector is close to VEMO V99-83-0013, but you have to cut the plastic to fit. On older models (ART1), a secondary unit is required and is has a coaxial cable running to it. The plug this coaxial cable is connected to, is used as a venting hole on ART2 / DTR2. Its a much more complex system, check W220 wiki for more information.

Connector 1:

  • A2105403681 "6-PIN MQS;B29"
  • Replacement/self built: VEMO V99-83-0013
  • Pinout:
    1. 0.5 RedGreen: Circuit 87 (POWER)
    2. Not Connected
    3. Not Connected
    4. 0.5 GreenWhite: CAN-C High
    5. 0.5 Green: CAN-C Low
    6. 0.75 Brown: GROUND

Fitment:

  • W219 (CLS)
  • W211 (E), mounted with reflector (might need reflector to work properly?)
  • W230 (SL)

P/N (PLEASE CHECK FOR MISSING COAXIAL PLUG, OTHERWISE ITS ART1):

P/N ART EPC Note
W219 CLS and W230 SL
A0005408817 1 W230 ONLY, until 28/05/2004
A2305400917 W219: until 31/10/2007, W230: from 30/07/2004, replaced by 1417
A2305401417 W219: until 31/10/2007, W230: from 30/07/2004, replaced by 1717
A2305401717 W219: until 31/10/2007, W230: from 30/07/2004, replaced by 1817
A2305401817 W219: until 31/10/2007, W230: from 30/07/2004
A2305400062 W219: 31/10/2007 and up, W230: from 30/07/2004, replaced by 0162
A2305400162 2 W219: 31/10/2007 and up, W230: from 30/07/2004
W211 E (Mounting with reflector)
A2115400617 1
A2115401417 2


Compatibility:

- R170 has no ZGW/CGW

- No mounting frame

- No K-Line, wire directly onto CAN

Fuse: 7.5A

CAN Opcodes
CAN ID Description
0x0254 A1 - Main status
0x025C A2 - Object 1 info
0x0260 A3 - Object 2 info
0x0264 A4 - Object 3 info
0x0268 A5 - Object 4 info

Distronic documentation on W220 wiki https://w220.wiki/Distronic

Initialization

Bootup phase is about 30 seconds. The device needs to detect some particular frame in order to not deem itself faulty.

Communication

N47-5 (ESP, BAS control unit):

Note: W209/215/220 have a different interface compared to W211/219/230, they have a different connector for OLD ART1 sensors!!!

  • DTR controls engine and braking torque interface of ESP unit.
  • ESP/BAS -> DTR
    • Left front, right front, left rear, right rear wheel speeds
    • Steering angle (0 to 720 degrees)
    • Steering angle sign (right/left)
  • ESP/BAS <- DTR:
    • Distronic error
    • Target evaluation (distance to it, relative speed, angle, radar lobe orientation, strength of the reflected radar beams)

N93 (Central Gateway control unit):

  • Lower control panel (N72) -> CAN-B through N93 -> CAN-C DTR
    • DTR switch OFF or ON (proximity warning function)
    • Specification from the DTR distrance potentiometer

N80 (Steering column module):

  • ESP/BAS <- Steering column module:
    • Pushbuttons OFF / SET MEMORY / SET ACCELERATION / SET DELAY
    • Variable speed limiter ON/OFF (except USA and Japan)
    • Cruise control switch implausible
    • Steering angle (from 0 to 720 degrees)
    • Steering angle sign (right/left)
    • Steering angle sensor defective

A1 (Instrument cluster)

  • ESP/BAS <- Instrument cluster:
    • MPH instead of KMH (variable speed limitation)
    • Winter tire maximum speed
  • ESP/BAS -> Instrument cluster:
    • Distronic distance warning lamp
    • Distronic warning tone
    • Recognition of a stationary object (e.g. stationary vehicle)
    • Switch display to Distronic display
    • Distronic switched on (no vehicle ahead)
    • Speedometers
    • Switch Distronic segment display on
    • Vehicle detected ahead
    • Distronic switched on (Proximity control active)
    • LIMIT in display (except USA, Japan)
    • Distronic Error

TCU (Transmission control unit):

  • BAS/ESP <- TCU
    • Actual gear
    • Target gear
    • Kick-down
    • Transmission code
    • Transmission emergency running mode
  • BAS/ESP -> TCU
    • Shift curve offset
    • Suppression of dynamic full load position
    • Maintain gear position
    • Active downshift required

ECU (PCM)

  • BAS/ESP <- ECU
    • Vehicle code
    • Adjusted engine torque for traction control
    • Engine speed
    • Minimum and maximum engine torque, engine drag torque
    • Kickdown recognition
    • Deceleration fuel shutoff
  • BAS/ESP -> ECU
    • Reduction or increase of the engine nominal torque