ducati traction control explained

0DTC INFORMATION March 2009March 2009

DUCATI TRACTION CONTROLDUCATI TRACTION CONTROL

1DTC INFORMATION INDEX

DTC SYSTEM

2. Introduction3 C i i

DTC QUESTIONS & ANSWERS

20. Safety21 U d i 2008 1098 R3. Communication

4. Benefits5. 2009 DTC model application6. Continuous development7 S i i i l l

21. Updating a 2008 1098 R22. Changing DTC level while riding23. Changing original final drive gearing24. Changing original equipment tyres - street25 Ch i i i l i k7. Sensitivity levels

8. Wheel speeds9. Stage 1 interaction

10. Stage 2 interaction11 D t h l

25. Changing original equipment tyres – track26. Fitting track bodywork27. DTC software differences28. Wheelies29 B11. Data channels

12. Full power13. Innovative thinking14. DTC channel for 2009 DDA

29. Burnouts30. Workshop testing

DTC OPERATING INSTRUCTIONS

15. Activating the system16. Set-up function

DUCATI TRACTION CONTROL

6 Set up u ct o17. Setting DTC levels 1-818. Scrolling through all levels19. System status after key-off or battery-off

2DTC INTRODUCTION

2

Performance on the track safety on the road

For the first time ever on a road-goingt l t titi l l t ti

Performance on the track - safety on the road.

motorcycle, a true competition-level tractioncontrol system for the road comesintegrated into the electronics of the 1198 S,

, 1098 R Bayliss and Streetfighter S ast d d i tstandard equipment.

In developing its WorldChampionship-winning tractiont l t f d D ticontrol system for road use, Ducati

demonstrates its strategy of transferring technologies from their racebikes into the production environment while also showing how solutions developed foralso showing how solutions developed for performance on the track can be applied to enhance safety on the road.


3DTC COMMUNICATION

3

It’s not enough to just say “ and the bike has DucatiTraction Control ”

XXXX

It s not enough to just say …and the bike has Ducati Traction Control...

Understanding 2009 Ducati Traction Control…

what the system is…what the system is.

…how it works.

…the benefits.

This incredible piece of electronic genius sets new standards in sport bike performance andThis incredible piece of electronic genius sets new standards in sport bike performance andsafety and represents an important ‘feature’ for Ducati range.

Our constant sport bike quest for more power and less weight now runs parallel with anongoing program to enhance control and safety.

DTC is a highly intelligent system that acts as a ‘filter’ between the rider’s right hand and therear tyre. In milliseconds, DTC is able detect and subsequently control wheel-spin, considerablyreducing the risk of incident.

However, DTC is intended as a ‘rider aid’ and does not remove the risk of incident.

Use this document to learn about the system and take some time to navigate your waythrough a DTC display


through a DTC display.

4DTC BENEFITS

4

XXXX New 2009 DTC suitable for everyday road use.

DTC inspires rider confidence.

DTC improves mid-corner acceleration performance.

8 levels of DTC sensitivity ensure absolute

no-compromise settings for all riding styles.

DTC is the application of genuine WorldDTC is the application of genuine World

Championship-winning technology.

DTC provides improved performance on the track.

DTC increases safety during corner acceleration.

DTC increases safety when accelerating in low grip

conditions.


conditions.

5DTC09 MODEL APPLICATION

MY 2010 Streetfighter S

MY 2009 1098 R Bayliss

MY 2009 1198 S


MY 2009 1098 R – Not available in North America

6DTC CONTINUOUS DEVELOPMENT

Since its early 2008 introduction on the 1098 R, when the systemcould only be used on the track, Ducati Traction Control (DTC) hasy , ( )

undergone continuous development to make it suitable for the road.

This has been achieved on the 2009 1098 R Bayliss,1198 S and the Streetfighter S, by controlling wheel-spin g , y g pwith a combination of ignition retardation and a pattern of fuel injection cuts.

The 2008 system cut the ignition spark and therefore,y g p ,released unburnt fuel into the exhaust system which wouldhave compromised the efficiency of a catalyser if fitted.

For this reason the 2008 system could only be used y ywith non-catalysed race mufflers which restricted the system to track use only.

From 2009 this is no longer the case.


g

7DTC SENSITIVITY LEVELS

Accessible from the left-hand switchgear and displayed on the digital instrumentation, the system offers a choice of eight profiles or sensitivity levels. Each one has been

programmed with a wheel-spin tolerance matched toi idi l l f kill d d f i hprogressive riding levels of skill graded from one to eight.

While level eight administers a confidence-building, high level of interaction from the system

b i i lby activating at a lower threshold of wheel-spin,

level one offers a much higher tolerance and so

h l i imuch less intervention for highly competent

riders.

Wh h l l iWhen the level is selected and DTC

activated, both aredisplayed on the

i i


instrumentation.

8DTC WHEEL SPEEDS

When the profile that best suits the combination of road or track conditions and riding stylehas been selected and the DTC system activated front and rear wheel sensors compare

DTC ECU

has been selected and the DTC system activated, front and rear wheel sensors comparespeed differential to sense the amount of wheel-spin.

If the system recognises wheel-spin above aDTC ECU wheel spin above a

certain threshold, the DTC ECU administers

two types of interaction in varying amountsin varying amounts, calculated with values

supplied from multiple channels of data.


Wheel speed sensors

9DTC STAGE 1 INTERACTION

The first ‘soft’ stage of system interaction is executed by high speed software that instantly makes electronicadjustment to the ignition timing by administering varying amounts of ignition retardation to reduce the engine’s

DTC ECU

Ignition spark retardation

torque output.

During this initial stage of DTC interaction, up to 3 warning lights (normally used to

i if li i *) ill iretardation signify over-rev limiter*) illuminate to signify the amount of DTC

applied.

*Th li i i*The over-rev limiter warning lights will always take

precedence over the DTC warning lights.

Engine ECU



10DTC STAGE 2 INTERACTION

CIf the DTC software detects that the first ‘soft’ stage of system interaction is inadequate to control the wheel-spin, it continues to administer ignition retardation and, in addition, instructs the engine ECU to initiate a pattern of

l i i i j i il if

DTC ECU


Injection cuts

constantly increasing injection cuts until, if necessary, full injection cut.

During this second stage f DTC i i llretardation of DTC interaction, all

4 warning lights fully illuminate to signify that DTChas also initiated i j iinjection cuts.

Engine ECU



11DTC DATA CHANNELS

With so many possible wheel-spin scenarios, DTC calculates instant data sent from multiple sources before deciding how best to interact with the power delivery. From

slow mid-corner acceleration with considerable vehicle inclination to high speed corner exitswhile almost upright, DTC instantly processes a mass of data input to react according to themotorcycle’s exact ‘dynamic situation’.

DTC ECU

DTC l l 1 8

ECU ignition mapping

ECU injection mapping

Throttle opening

DTC level 1-8

Front wheel speed

p g

Rear wheel speed

Gear selected (calculated from rpm and front


Rear wheel speedp

wheel speed data)

12DTC FULL POWER

12

Smooth and carefully programmed return to full power

After either Stage 1 (ignitionretardation) and/or stage 2

Smooth and carefully programmed return to full power

retardation) and/or stage 2(pattern of injection cuts or

full cut), the system will incrementally return to the

original ignition and/ororiginal ignition and/or injection mapping as the

wheel speeds approach equalisation.

As traction control is requiredduring extreme riding situations,this smooth and carefullyprogrammed return to fullp og a ed etu to upower delivery is the key toefficient operation and a ‘fluid’riding style.


13DTC INNOVATIVE THINKING

13

Th i l i ti b t h l d hThere is a general misconception about wheel speeds whencornering on different rolling-diameters of tyre section.

This has no effect on DTC when comparing wheel speeds. The most important data is the differential in

f t d h l d d thi d t ifront and rear wheel speeds and this data is ‘re-sampled’ every 10 milliseconds to establish the system base-line.

Th l i ti thi ki b hi d DTC iThe real innovative thinking behind DTC ishow the range of sensitivity levels decide

exactly how to react to excessive wheel-spin by understanding the

bik ’ ‘d i it ti ’bike’s ‘dynamic situation’.

This ‘system intelligence' is achieved by processing a mass f d t i tt f j tof data in a matter of just

milliseconds, and it exists thanks to the thousands of

laps and hours spent testing, i d i


programming and earning race victories.

14DTC DATA ACQUISITIONRecording the amount of DTC interventionRecording the amount of DTC intervention

For 2009, an additional channel of information has been added to the Ducati Data Analysissystem, dedicated to recording the DTC index (a value that quantifies the amount oftraction control used during a data recording session) DDA is supplied as standardtraction control used during a data recording session). DDA is supplied as standardequipment on the, 1098 R Bayliss, 1198 S and Streetfighter S.

Once downloaded a graphic trace can be viewed to reveal just howcan be viewed to reveal just howmuch DTC interaction has been used to reduce wheel-spin.

When viewed alongside channelsWhen viewed alongside channels of data recording throttle opening, vehicle speed, engine rpm anddistance travelled or laps and lap times the system provides atimes, the system provides a valuable and fascinating analysis of the performance of both bike andrider when using DTC.


15DTC SBK OPERATING INSTRUCTIONS - 1

Activating the systemActivating the system

To activate DTC, the motorcycle must be stationary. To enable DTC, enterthe menu and set “DTC” to “On” by pressing switch (1, fig. 10) in position B “▼” for

3 seconds After 3 seconds the message “DTC” will appear on the display to indicate3 seconds. After 3 seconds the message DTC will appear on the display to indicateactivation of the system.

When activated, the message “DTC” is visible both on the normal display and also within themenu pages Each time DTC is activated it will set the DTC level to 8 by default but can thenmenu pages. Each time DTC is activated, it will set the DTC level to 8 by default, but can thenbe changed using the function “Traction Control Level Setting (DTC SETUP)”.


16DTC SBK OPERATING INSTRUCTIONS - 2Set up functionSet-up function

To set the DTC level, enter the “Setup DTC” menu page, which appears only when DTC hasbeen activated (DTC ON) The DTC level setting is indicated on the right hand side of thebeen activated (DTC ON). The DTC level setting is indicated on the right-hand side of thedisplay and ranges from “1” to “8” (1 for least and 8 for most system intervention).

While in this menu page, press switch (1, fig. 10) in position B “▼” for 3 seconds to accessthe level setting functionthe level setting function…


17DTC SBK OPERATING INSTRUCTIONS - 3Setting DTC levels 1 8Setting DTC levels 1-8

…The display will show “Setup LEV. 1“. If you wish to set this level, press switch (1, fig. 10)in position B “▼” for 3 seconds and the display will automatically quit this page and return tothe initial display with the new level setting (level 1) indicated on the right hand sidethe initial display with the new level setting (level 1) indicated on the right-hand side.

If, however, you wish to select the next level, press switch (1, fig. 10) in position B “▼” andthe display will show “Setup LEV. 2”. If you wish to set this level, press switch (1, fig. 10)in position B “▼” for 3 seconds and the display will automatically quit this page and return toin position B ▼ for 3 seconds and the display will automatically quit this page and return tothe initial display with the new level setting (level 2) indicated on the right-hand side.


18DTC SBK OPERATING INSTRUCTIONS - 4Scrolling through all levelsScrolling through all levels

Quickly pressing switch position B will scroll upsequentially through each available level untilarriving at the desired value from 1 8 Pressingarriving at the desired value from 1-8. Pressingposition A “▲” will scroll in the opposite direction.

When the desired level has been reached, pressingswitch B “▼” for 3 seconds will return theswitch B ▼ for 3 seconds will return theinitial display with the selected level set.


19DTC SBK OPERATING INSTRUCTIONS - 5System status after ‘key off’ or ‘battery off’System status after key-off or battery-off

If the ignition is switched off (key-off B) after DTC has been activated, the DTC system willnot be disabled at the next key on Instead the next key on will restore the system to itsnot be disabled at the next key-on. Instead, the next key-on will restore the system to its active status (DTC ON) with the DTC level set as previously selected.

If, however, battery power is cut off, DTC will be disabled (DTC OFF) when battery poweris restored and the ignition is next switched on (key on A) Any re activation of the DTCis restored and the ignition is next switched on (key-on A). Any re-activation of the DTCsystem will default to DTC level 8 until an optional level is selected.


20DTC Q&A – SAFETYIs it impossible to lose rear wheel traction with DTC activated?Is it impossible to lose rear wheel traction with DTC activated?

No! Although one of the clear benefits of DTC is increased safety, the system should beregarded first and foremost as a ‘rider aid’ that improves performance and great care shouldalways be taken not to exceed obvious limitsalways be taken not to exceed obvious limits.

Poor motorcycle preparation, incorrect set-up, tyre condition, poor road or track surface orsimply ‘excessive cornering speed’ can all potentially contribute to uncontrollable loss of rearwheel traction even with DTC activatedwheel traction - even with DTC activated.


21

Is it possible to update a 2008 1098 R with 2009 DTC?

DTC Q&A – UPDATING 2008 1098 RIs it possible to update a 2008 1098 R with 2009 DTC?

No. At this time, there is no update schedule available.

2008 2009✘


22DTC Q&A – CHANGING DTC LEVEL IN MOTIONIs it possible to change DTC level while riding?Is it possible to change DTC level while riding?

NO. Both the initial activation of the system and the selection or change of DTC level can onlybe done when the motorcycle is stationary. While there are obvious benefits in being able to

change DTC level while riding there are also a number of safety considerationschange DTC level while riding, there are also a number of safety considerations that have been factored into the design.

Firstly, and most obviously, ‘due care and attention’to other road or track users would be seriously y

compromised if the rider was navigating the set-up menus and selecting a DTC level while riding.

Secondly, adjusting the DTC level in the wrong direction during a road or track sessiondirection during a road or track session

because the rider’s attention is reduced, risks the DTC system being less

sensitive than expected.

For these reasons, it is important that the rider leaves the road or track and

parks the motorcycle before entering the system set-up and calmly


deciding which level best suits their riding style and/or environment.

23DTC Q&A – CHANGING ORIGINAL GEARINGDoes changing the original final drive gearing effect DTC?Does changing the original final drive gearing effect DTC?

NO. There is no part of the DTC system effected by the final drive gearing.


24DTC Q&A – STREET TYRESIs it ok to change from the original equipment tyres?Is it ok to change from the original equipment tyres?

NO. The 8 levels of sensitivity offered by the DTC system operate in a range dictated by the diameter, profile and rolling-circumference of the the original

equipment tyres Changing the type of tyre for streetequipment tyres. Changing the type of tyre for street use could seriously effect the performance of

DTC and so must be avoided and discouraged.

.


25DTC Q&A – TRACK TYRESIs it ok to change from the original equipment tyres for the track?Is it ok to change from the original equipment tyres for the track?

YES BUT... Consider that if you change tyre type, it is highly likely that only DTC levels 1-3(intended for highly competent track riders) will function within the software's pre-set margins.

The remaining levels are likely to be outside of the calculation tolerances.


26DTC Q&A – TRACK BODYWORKWhen changing bodywork can the DTC ECU be repositioned anywhere?When changing bodywork can the DTC ECU be repositioned anywhere?

NO. If after-market bodywork is fitted, it is vitally important that the DTC ECU, located inthe tail fairing, is positioned (and angled) exactly as it is in the original bodywork.

Failure to do so, will seriously effect the performance of the DTC system.


27DTC Q&A – SOFTWARE DIFFERENCESAre all 8 DTC levels the same for the 1098 R Bayliss and 1198 S?Are all 8 DTC levels the same for the 1098 R Bayliss and 1198 S?

YES. For 2009, all three models share the same software and intervention profile programming because they have similar power outputs transmissions and chassissimilar power outputs, transmissions and chassis configurations.


28DTC Q&A – WHEELIESIs it still possible to ‘wheelie’ with DTC activated?Is it still possible to wheelie with DTC activated?

YES. As DTC’s intelligent ECU reads all data channels to understand the motorcycle’s exact‘dynamic situation’, electronic considerations are made to distinguish front and rear wheelare made to distinguish front and rear wheelspeed differential during ‘wheelies’ and so avoid system intervention.


29DTC Q&A – BURNOUTSIs it still possible to do a ‘burnout’ with DTC activated?Is it still possible to do a burnout with DTC activated?

YES. DTC does not activate at (front wheel) speeds less than 30km/h (19mph) for the 1098 R and 20km/h (12mph) for the 1198 S, so burnouts performed below these speeds are permitted by the systembelow these speeds are permitted by the system.


30DTC Q&A – WORKSHOP TESTINGIs it possible to test the DTC system in the workshop?Is it possible to test the DTC system in the workshop?

Yes. Please refer to your local area Service Manager for full details and required equipment.


31


ducati traction control explained

Documents

dtc levels

dtc suitable

dtc channel

dtc benefits4xxxx new

levels of dtc sensitivity

dtc model application6

dtc software differences28

ducati traction controlwhat