CITROËN DS3 R3 Max User manual

System User Guide
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DS3R3Max
System User Guide
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Summary
1. Global System Overview ................(p3)
1. Looms ………………………………………….(p4)
2. Acquisition Si nals ……………………...(p5)
2. Driver System Overview .................(p7)
1. Function Overview ……………………..(p8)
2. Steerin Wheel Mana ement ……(p9)
3. DashBoard Overview ………………..(p10)
4. Gearbox Mana ement ……………..(p12)
5. Hydraulic System ……………………...(p14)
6. Accessory Mana ement …………..(p16)
7. Start Assistance System ……………(p17)
8. Calibration ………………………………...(p18)
9. Dia nostics ………………………………..(p20)
3. Telemetry (Wintax) .........................(p21)
1. Install ……………………………………….…(p24)
2. Settin s …………………………………..….(p25)
System User Guide - 03.12.14

1. Global System overview
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1.
Global System overview
1. Looms
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(T4)

1.
Global System overview
2. Ac uisition Signals
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Analo and frequency si nals
These channels, dedicated to en ine or chassis, are part of
the basic system. The processin done on them will be
realized by the ECU (calibration, dia nostics,…)
En ine oil pressure
En ine water pressure
En ine intake pressure
En ine turbochar er pressure
Atmospheric pressure
Barrel position
Pedal position(%)
Throttle position(°)
Clutch pressure
Hydraulic pressure
Wheels speed
Brake pressures
Knock sensor
Si nals from Bosch modules
These channels, dedicated to chassis care are part of the
basic system. The processin done on them will be realized
by the Bosch unit (calibration, dia nostics,…)
XY accelerometer
Steerin an le
Yaw
Si nals from BRK
These channels dedicated to chassis care are part of the
basic system. The processin done on them will be realized
by the BRK unit (calibration, dia nostics,…)
Front Wheel speeds x2
Rear Wheel speeds x2
A specific si nal will be sent to the trip meter
Temperature Processed si nals
Four measurements of temperature are acquired by the ECU (Water Temp, Air Temp, Oil Temp, Gbox Temp and Box Temp).
These measurements are done throu h CTN temperature sensors ,specific type, therefore all the settin s done into the
software are adapted to them. The use of a sensor other than the one specified can raise some doubts on the entire system,
anyway a ainst the ori inal setup.

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Mandatory Sensors
Those sensors are used by the system, NOT havin those workin properly will enerate
problems to system and parts:
En ine intake pressure (P2).
En ine turbochar er pressure (P2P).
Barrel position (Barrel).
Pedal position (Pedal).
Throttle position (Throttle).
Clutch pressure (P_CL).
Hydraulic pressure (P_Accu).
Wheel speeds (Wspeed_FL/FR/RL/RR).
Hand Brake pressure (P_HdBrk).
En ine water temperature (T_WAT).
Exhaust temperature (T4).
Intake temperature (T2).
Atmospheric pressure (P0).
Knock sensor (Deton_1/2/3/4).
System User Guide - 03.12.14
1.
Global System overview
2. Ac uisition Signals

2. Driver System Overview
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2.
Driver
System Overview
1. Function Overview
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Strate y Mode
Auxilary Li ht Select
Headli hts
1rt Press : Cornerin Lamp
2nd Press : Low Beam
3rd Press : Switch off Li hts
Horn
Aux Power // Fuel drain //
Steerin An le Zero
Turn Li hts // Both
selected : Hazard li hts
Scroll button
1 press : Scroll
Hold press : Swap Strd/Mechanic
Heater // En ine fans test
// Steerin an le Zero
Nb: - Corner lamp has to be
selected to use Fo li hts at
least.
- Hi h beam has to be
selected to use inner & outer
li hts
Starter - Power - Main Switch
Located here
Low/Hi h Beam // Flash Wiper Speed
Dashboard Display
Gear Shift Paddle
Pull : Up
Push : Down
Gear shift lock (RN1)

Up and Down request
Access from the paddle
Push to Downshift
Pull to Upshift
Neutral request
Active by pushin the lock button
and Up or Down request
Disable over 30km/h, ear > 1
And RPM > 2500
Reverse request
Active by pushin the lock button and Down
request
Disable over 10km/h or 2500rpm
Reverse disen a ed by Neutral request.
En ine Crank (Oil pressure build)
Active if DIM141 is not connected by
pressin ‘start’ button
Kill En ine
Active if Power is switched OFF
Vehicle Maps
Few Vehicle maps will be available
on the center panel in STAGE mode only
(see chart opposite).
Start Assistance System
See pa e 17
2.
Driver System Overview
2. Steering Wheel Management
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Steering Wheel Input Signal
Tarmac Gravel
S0 Torque reduced (low rip) Torque reduced (low rip)
S1 Intermediate Torque
SAS (standard rip)
Intermediate Torque
SAS (standard rip)
S2 Full power
SAS (hi h rip)
Full power
SAS (hi h rip)

2.
Driver System Overview
3. Dashboard Overview
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LED 1 /LED A / LED B / LED C / LED D / LED E / LED F /LED 2
Revolution Information (if GDU is not installed)
LED A to D: En ine’s approachin upshift rev
Li hted 1 by 1
LED E: Ideal time to shift
LED F: Over revolution
Mode and Alarm Information
Led 1 only
Blinkin : Not used
Freeze : Information
Led 2 only
Blinkin : Alarm medium level
Freeze : Alarm Low level
Both
Blinkin : Start en a ed or Alarm Hi h Level
Freeze : Not Used
DashBoard Information
Dashboard buttons
P1
Zeroin fuel consumption
P2
Scroll pa es

2.
Driver System Overview
3. Dashboard Overview
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Revolution Information
LED A&B flashin : En ine’s approachin
up shift rev
LED A&B fixed : En ine’s approachin up
shift rev
LED A&B fixed and C&D flashin :
En ine’s approachin up shift rev
LED A to D Green Fixed : Ideal time to
shift
LED A to D Red Fixed: Over revolution
LED A / LED B / LED C / LED D
LED
Mode and Alarm Informations
Led
Blinkin : Not used
Fixed : Information or Alarm
GDU Information
The GDU ear display fittin is optional. It can be ordered at the Boutique Citroën Racin under the reference
DS3R3-S1C0.OPT.010
The fittin of the additional ear display unit implies a repro rammin of your ECU.
When the GDU is fitted, the LED A to F of the main display are disabled.

2.
Driver System Overview
4. Gearbox Management
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Upshift and Downshift Switches
An up/down demand is activated followin a short bandwidth volta e detection, from one to the other (total
bandwidth : 0 to 5V). The oal of this strate y is to avoid any electrical interference from the steerin wheel that
can be considered valid (shortcut, etc. ). The demand is considered from both inputs if:
Electrical dia nosis are OK (no value closed to 0 or 5 volts )
Gearbox automate at Idle state.
No hydraulic pressure measurement fault.
No barrel position measurement fault (F on dash).
No over-rev expected (downshift only), request will be saved (only one) and realised when possible.
No torque requested on downshift from driver.
200ms at least between UP requests
100ms alt least between DOWN requests
Hydraulic pressure
Beside the electrical dia nostic done (invalid if the volta e value is out of thresholds set), this measurement
shows the pressure available into the main circuit. This sensor is fundamental to be able to keep a eye on and
make sure the pressure is there. This is part of the pump mana ement. In case of Hydraulic pressure drops under
30b, the pump and earshifts chan e will be stopped.
The system is based on the accumulator pressure si nal. In case of failure, the system will automatically switch to
the Hydraulic Block pressure si nal. If both are faulty, then the pump will not be driven and the earshift will be
stopped.
System User Guide - 03.12.14

2.
Driver System Overview
4. Gearbox Management
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Barrel position
Beside the electrical dia nostic done (invalid if the volta e value is out of thresholds set), the earbox automate
is based on this measurement, actually from the barrel position re ulation, all the ear chan es will depend on
it (en a ed, disen a ed). Therefore, the way to set it correctly (if you have to remove the sensor) will be as
follow:
- Connect the sensor
- Make sure that the earbox is mechanically in neutral
- Position the sensor by checkin the current barrel value on the dashboard (first mechanic pa e), which has
to be 1000mV ±5mV.
A mark is on the side, which should be set up upward. If the sensor is fitted upside down,
the display will show ‘4’ instead of ‘0’.
Few time in this document, “Neutral position of the earbox” idea has been raised. You
must know that if you do not pay enou h attention to potentiometer calibration,
the quality of the entire earshift system will be modified, as well as the durability of the earbox components.
If the system detects an unknown position for more than a 10ms, then
the default ear “5” will be displayed. The driver will then be allowed
to downshift or upshift dependin on the situation.
Unknown position displayed as ‘F’ by the system.
System User Guide - 03.12.14

2.
Driver System Overview
5. Hydraulic System
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Bleedin screw
System User Guide - 03.12.14
P_CL
P_hydr
P_Accu

2.
Driver
System Overview
5. Hydraulic System
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Must be done if
Brand new parts lifted
Hi h pressure network has been opened
Pump, Block, Pipes
Before
the standard clutch bleed
(thru pedal) has to be done.
Process
Check tank is full
Open the bleed screw w/ pipe
and catch tank as a standard clutch bleed
CAR Main SW ON
Switch Power OFF
Don’t touch on Clutch pedal!!!
Press on unlabeled switch durin 5s
then switch Power ON
That pa e will appear if it is not already
displayed
The system will open the valves and start
runnin the pump
Will stop after
10s
If Power is switched OFF
If 40b is reached, meanin the bleedin
screw has been closed.
Must do
A complete reset (Power then Main) to o back to
standard hydraulic mana ement.
Bleed
Nb: Please be aware that there are two
hydraulic networks, one linked to clutch
pedal ‘Standard’ and a second controlled
by ECU ‘System’. Check schematic for
further details…

Hydraulic pump
1. Nominal value is ~50bars
2. Electrical pump driven by ECU
3. At power up, driven until 53 bars is reached, messa e 1 will
appear on screen
If Pressure under 47bars, pump ON until 53bars is
reached
If pressure under 20bars durin more than 3s , pump
is not driven anymore (avoid dama e from the loom,
pump, etc…)
If Accu pressure sensor failed => swap to Hydraulic
pressure sensor
For FIA re ulation, after 3s than APC is OFF, hydraulic pressure
is released. Messa e 2 will appear on screen.
Nb: If Power is back ON before or Main is switched OFF, this will
not be done or won’t be complete.
Fuel Pump
1. ON at power up durin few seconds
2. ON if En ine ON
3. Can be forced (to pump fuel out of the tank), Power OFF
keep pushin AUX button while Power is switched ON
Water Coolin Fans
1. Both ON if Water temperature>90° then OFF <85°
2. Can be forced, APC OFF keep pushin Fan button while
Power is switched ON.
3. OFF in any case if the en ine is stalled excepted in STAGE
mode.
Turbo Temperature
1. If T4>910°C Ban Ban is OFF
2. Entry Ban Ban temperature <900°C
3. When Car is stationary, Gearbox in Neutral and Road Mode
activated
4. Messa e 3 appears on screen if the temperature is too hi h
to switch the en ine OFF.
2.
Driver System Overview
6. Accessory Management
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Messa e 1 Messa e 2 Messa e 3

2.
Driver System
Overview
7. Start Assistance System
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Definition
Different setups have been pro rammed as follow :
S0 is defined as SAS OFF
S1 is defined as SAS ON with standard rip dependin on type of surface chosen
S2 is defined as SAS ON with hi h rip dependin on type of surface chosen
SAS activation
Select Type of start control wanted
Select Type of surface wanted
Then
1. Vehicle stationary
2. Road Mode
3. First ear
4. Clutch pedal pressed
5. Handbrake pressure over 20bars then
Select Sta e Mode to activate the strate y
A messa e will appear on the dash
Push Full throttle to “load” turbo, it takes about 3s.
When tar et pressure is reached, GO !!!! messa e appears
Turbo is loaded, o whenever.
Driver is advised to release Hand Brake pressure then clutch pedal and to maintain full throttle
6. When the Start is done, the entire process need to be done a ain to be able to do another one
START 1

2.
Driver
System Overview
8. Calibration
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Pedal/ hrottle Calibration
Before
1. En ine Stopped
2. Gearbox in Neutral
Process
1. CAR Main SW OFF
2. Switch Power ON
3. Push full throttle
4. Then switch Main Switch ON
5. Stay that way until a messa e appears on Dash
6. Follow instructions
If the process is aborted, the dash will show you a KO messa e
Must be done after
1. Throttle or pedal has been chan ed
2. En ine has been chan ed
3. ECU has been chan ed

2.
Driver System Overview
8. Calibration
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Steering Angle Calibration
Before
1. En ine Stopped
2. Gearbox in Neutral
3. APC OFF
4. Road mode ON
5. Make sure the wheels are strai ht (with zero pipe on)
6. Switch to “Verification Chassis” mech pa e
Process
1. Hold Steerin wheel with strai ht line tool.
2. Press on Fan and Aux sw. at the same time durin 5s
3. If OK, a reen “OK“ icon should appear
4. Accuracy can be checked on driver checkin pa e
Green tab appears when an le ±1°
Must be done after
1. Bosch steerin an le module has been chan ed
2. ECU has been chan ed
3. Any work on steerin system has been undertaken

2.
Driver
System Overview
9. Diagnostic
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Clutch Warnin
Appear on Road and Sta e pa es only
Appear if clutch pressure is not enou h to chan e ears properly.
Driver is advised to use Clutch pedal to chan e ears
En ine Warnin
I nition plu not connected:
This icon will appear in Mechanic Dia nostic pa e with the cylinder number.
Synchronisation information
In case of lost synchronization, those icons will appear into Mechanic Dia nostic pa e with a name
related to it
In case of weird behavior of crank si nal
Rpm=0 and start button activated, a alarm will be Raised
Outputs Warnin s
In case of current protection, an alarm will be raised.
Then before any power cycle, o to Mechanic Dia nostic pa e to check what has been switched off
Bosch Element
Reverse Li ht
Stop Li hts
Crank or Cam &
Lambda
Wiper
Radio
Rear Li hts
Lap Marker
Map Li hts
Rear Li hts Map Li hts