Parameters – Powertrain Introduction

Parameters – Powertrain
Introduction
IntroductionThis document describes parameters that are associated with the powertrain. Only parameters that are considered useful to the bodybuilder are listed.

The parameters and settings available for a specific vehicle depend on the vehicle specification from the factory. Contact a Scania workshop for full details of the cur-rent parameters.

The parameters are stored in the vehicle’s various control units and can be adjusted using SDP3 for bodybuilders (Scania Diagnos & Programmer 3).

SDP3 for bodybuildersSDP3 has different access levels. A complete access level is normally used by Scania workshops for troubleshooting, repair and adjusting parameters.

SDP3 for Bodybuilders has a limited access level with custom functionality. Exam-ples of functionality in SDP3 for Bodybuilders:

• Adjusting parameters.• Activating functions.• Transfer the .BIC files over from BICT (Bodywork Interface Configuration Tool)

to the vehicle.

Use the path below to set parameters for the powertrain in SDP3:

• Functions > Adjustment > Powertrain

Bodybuilders that do not have access to SDP3 for Bodybuilders can seek assistance with adjusting parameter settings from a Scania workshop.

More information on ordering parameter adjustments can be found in the document “Entry list – Powertrain”.

Scania Truck Bodybuilder 22:10-619 Issue 4.0.1 2018-12-10© Scania CV AB 2020, Sweden 1 (36)

Clutch


ClutchUse the following path to set clutch parameters in SDP3 for bodybuilders:

Functions > Adjustment > Powertrain > Clutch

Parameters for OpticruiseClutch control with activated power take-offThis parameter controls the clutch control for a connected power take-off with vari-able torque. Activate the parameter if the driver experiences poor comfort when the clutch is engaged in these conditions.

Possible values:

• Default• Activated

Factory setting: Default


Clutch


Braking in operation with split shaft power take-offThis parameter is only used in operation with split shaft power take-off.

Possible values:

• Disengage clutch – The clutch is disengaged when the driver depresses the brake pedal.

• Keep clutch engaged – The driver can brake using the brake pedal without disen-gaging the clutch. Therefore, the power take-off does not need to be restarted after braking.

Factory setting: Disengage clutch


Engine


EngineUse the following path to set parameters for the engine in SDP3:

Functions > Adjustment > Powertrain > Engine

Engine speed controlOrder of priorityThere are 4 functions for engine speed control. The functions are called engine speed control 1-4 and have the same setting possibilities.

Possible values:

• Last used – The engine speed control that was last used will be activated.• Number order – The engine speed control with the lowest number will be activat-

ed.

Factory setting: Numerical order

More information about the function can be found in the document “Engine speed control”


Engine


Engine speed change at stepped controlThis parameter states how much the engine speed must be changed for each short press of the button on the cruise control switch. The switch for cruise control refers either to the switches at the driver area or external switches connected to the BCI con-trol unit (Bodywork Communication Interface). Stepped control is obtained by short presses on the switches for acceleration (ACC) and retardation (RET). Stepless con-trol is obtained by one long press on one of the 2 switches.

Possible values:

• Active, 10-200 rpm in increments of 10 rpm

Factory setting: 50 rpm


Engine


Maximum engine speed while brakingThis parameter only applies to vehicles with a torque converter.

This parameter states an engine speed which the engine must not exceed when con-trol of engine speed 1-4 is used and the driver brakes at the same time with the foot brake.

The function is adapted to vehicles that need to be mobile while maintaining a high power output through the power take-off, such as fire engines. The function is very safety-critical and the engine speed must never be set higher than the speed at which the driver can brake the vehicle using the foot brake.

Possible values:

• 300-2,000 rpm in increments of 10 rpm and idling speed

Factory setting: Idling speed


Engine


Permit increased engine speed while brakingThe parameter is adapted to vehicles that need to be mobile while maintaining a high power output through the power take-off, such as fire engines.

The parameter is very safety critical and only applies to vehicles with torque convert-ers.

In order for the function to work, the Maximum engine speed while braking param-eter must also be reset from idling speed to the desired engine speed limit.

Possible values:

• On• Off

Factory setting: Off

Conditions for engine speed control with a gear engagedThis parameter specifies the requirement for when the function will be used.

Possible values:

• Activated• Gear engaged

Factory setting: Activated


Engine


Maximum torque during engine speed controlThis parameter states a torque that the engine must not exceed when the function is active.

Possible values:

• 300-5,100 Nm, the value is dependent on the type of engine.

Factory setting: 5 100 Nm

Engine speed when changing gear, automatic gearboxThis parameter states the maximum engine speed that is permitted to engage a gear from neutral position.

If a gear is engaged from neutral at the same time as the engine speed is regulated, the GMS control unit (Gearbox Management System) reduces the engine speed to the defined engine speed. When the gear has been engaged, the engine speed returns to the controlled engine speed.

Possible values:

• 500-3,000 rpm in increments of 1 rpm



Engine


Raised idling speedThis parameter states the engine speed that the engine must have when the raised idling speed function is active.

Possible values:

• Active, 500-800 rpm in increments of 10 rpm


When the Raised idling speed function is active, the engine speed assumes the preset parameter value and can be increased without limitation using the accelerator pedal.


Engine


Conditions for parking brakeThis parameter states whether activation of the Raised idling speed function is to be dependent on the parking brake being applied.

Possible values:

• On – Raised idling speed can only be activated when the parking brake is applied.• Off – Raised idling speed can be activated irrespective of the parking brake status.


Conditions for neutral positionThis parameter states whether activation of the Raised idling speed function is to be dependent on the gearbox being in the neutral position.

Possible values:

• On – Raised idling speed can only be activated when the gearbox is in the neutral position.

• Off – Raised idling speed can be activated irrespective of the gear position.



Engine


Vehicle speed limit for remote engine shutdownWhen the vehicle speed is lower than the defined speed, the engine will be shut off.

Possible values:

• 1–20 km/h

Factory setting: 10 km/h

Remote engine start, visual confirmationThis parameter states whether there should be a visual confirmation for successful and failed engine start.

Possible values:

• On• Off

Factory setting: On


Engine


Remote engine start, verification periodThis parameter states how long the remote engine start switch must be pressed in from the time the engine has started. In order for the engine not to be turned off when the switch is released.

Possible values:

• 0.5-5.0 s• Off

Factory setting: 1 s


Engine


Constant engine speed limiterEngine speed at constant engine speed limitationThis parameter states the engine speed that the engine must not exceed when the Constant engine speed limitation function is activated.

Possible values:

• Active, 500-3,500 rpm in increments of 1 rpm.

Factory setting: 1 200 r/min

Constant engine torque limiterTorque with constant engine torque limitationThis parameter states the torque that the engine must not exceed when the Constant engine torque limiter function is activated.

Possible values:

• Active, from 0 Nm up to the engine’s maximum possible torque, in increments of 10 Nm.

Factory setting: 1,000 Nm


Engine


Analogue engine speed controlHere you can set parameters that affect the analogue engine speed control.

Note:If any of the functions engine speed control 1, 2, 3 or 4 is to have analogue control, the parameter Type of control must be set to Analogue control.

Potentiometer, lower voltage limitThis parameter states the voltage which corresponds to a potentiometer value of 0 %.

Possible values:

• Active, 0-5.0 V in increments of 0.1 V

Factory setting: 0.5 V


Engine


Potentiometer, upper voltage limitThis parameter states the voltage which corresponds to a potentiometer value of 100 %.

Possible values:

• Active, 0-5.0 V in increments of 0.1 V

Factory setting: 4.5 V


Engine


Engine speed control 1, 2, 3 and 4It is possible to set 4 separate controls of the engine speed using individual values.

Type of controlThis parameter states which type of signal is to be used during engine speed control.

Possible values:

• Switch for cruise control – The engine speed is controlled by the switch for the cruise control. Either by switches in the driver area or by external switches.

• Fixed value – The engine speed is locked to a certain value.• Analogue control – The engine speed is controlled by an analogue signal to one

of the BCI control unit’s pins.• External CAN – The engine speed is controlled by the external CAN bus.

Factory setting: Fixed value


Engine


Governor characteristics This parameter states whether engine speed control for a changed load is to be nor-mal, soft or hard.

Possible values:

• Normal – Control is done moderately fast.• Soft – Control is done relatively slowly and reduces the risk of self-oscillations.• Hard – Control is done relatively fast, the risk of self-oscillations increases

Factory setting: Standard

Fixed engine speedThis parameter states the engine’s fixed engine speed during engine speed control.

Possible values:

• Active, 300-3,000 rpm in increments of 1 rpm


Note:If any of the functions engine speed control 1-4 is to have a fixed engine speed, the parameter Type of control must be set to a fixed value.


Engine


Upper engine speed limit This parameter states the maximum permitted engine speed during engine speed con-trol.

Possible values:



The upper engine speed limit must be higher than the lower engine speed limit.


Engine


Lower engine speed limitThis parameter states the minimum permitted engine speed during engine speed con-trol.

Possible values:



The lower engine speed limit must be lower than the upper engine speed limit.

Conditions for neutral positionThis parameter states whether the engine speed control is to be dependent on the gearbox being in neutral position.

Possible values:

• On – Engine speed control can only be used when the gearbox is in neutral posi-tion.

• Off – Engine speed control is not dependent on the gearbox being in neutral po-sition.

Factory setting: On


Engine


Accelerator pedal engaged during engine speed controlThis parameter states whether the accelerator pedal is to be engaged during engine speed control.

Possible values:

• On – The accelerator pedal is engaged when engine speed control is active.• Off – The accelerator pedal is disengaged when engine speed control is active.

Factory setting: On

Speed controlThis parameter states how the speed increase will take place, i.e. how quickly the en-gine speed is to be controlled.

Possible values:

• On, 50-1,000 rpm/s in increments of 50 rpm/s• Off

Factory setting: 1 000 r/min/s

If the parameter value is set to Off, the speed increase will take place without any lim-itation.


Engine


Upper vehicle speed limitThis parameter states an upper vehicle speed limit for the Engine speed control func-tion. When the vehicle speed is higher than the stated speed, the function is deacti-vated.

Possible values:

• Active, 5-150 km/h, in increments of 1 km/h• Parking brake – the parking brake must be applied for engine speed control to be

active.

Factory setting: Parking brake


Engine


Cylinder balancingThe cylinder balancing function governs the fuel volume injected into each cylinder to reduce engine vibrations at low engine speeds.

Possible values:

• Active – Means that the engine control unit carries out cylinder balancing as usu-al.

• Inactive – Means that cylinder balancing is switched off. This setting can result in increased vibrations when idling.

• Inactive when power take-off is in use – Means that cylinder balancing is switched off when a power take-off is in use. On some vehicles, vibrations may occur when the power take-off is used while cylinder balancing is activated.

• Inactive when vehicle is in motion – Means that cylinder balancing is switched off while driving. The reason is that vibrations can be due to other causes than a fault in the injectors, for example that the wheels are not completely round.

Factory setting: Inactive when vehicle is in motion


Gearbox


GearboxUse the path below to set parameters for Gearbox in SDP3:

Functions > Adjustment > Powertrain > Gearbox

Using the clutch actuatorThis parameter is primarily intended for clutch intensive operation, for example re-fuse collection vehicles.

Possible values:

• Reduced – Reduces the number of movements that the clutch actuator makes and thereby reduces the wear on the clutch actuator.

• Standard

Factory setting: Standard

When the parameter is set to Reduced, the clutch actuator is not used for gear changes in the high range, these are instead controlled by the engine. Engine controlled gear changes can mean impaired comfort.


Gearbox


Automatic neutralAutomatic neutral is used to automatically engage neutral position when the vehicle has been braked to a standstill and predefined activation conditions are fulfilled.

More information can be found in the “Automatic neutral” document.

Brake function for activationThis parameter specifies which brake function activates the function.

Possible values:

• Parking brake• Brake pedal• Both

Factory setting: Both

Direction indicator for activationThis parameter states for which direction indicator the function is to be activated.

Possible values:

• Forward gear position• Reverse gear position• Both

Factory setting: Forward gear position

Scania recommends that the front gear position is used as this allows shunting of the vehicle.


Gearbox


Sequence conditions for switchesThis parameter states the sequence conditions for how a switch will control activa-tion and deactivation of the function.

Possible values:

• On – In order for this function to be activated, the switch must be deactivated be-fore other activation conditions.

• Off – The order does not affect the switch or the activation conditions.

Factory setting: On


Power take-off


Power take-offPower take-off adaptationUse the path below to set parameters for power take-off in SDP3:

Functions > Adjustment > Powertrain > Power take-off

Power take-off adaptation is used to estimate how much power the power take-off is consuming. This is done to make the Opticruise system work more efficiently.

Possible values:

• Active• Inactive

Factory setting: Active


Power take-off


AcknowledgementThis parameter states whether the indicator lamp in the instrument cluster, ICL (In-strument Cluster), will come on when a power take-off has been physically associat-ed or when there is an activation request for the power take-off. This parameter is only adjustable for vehicles with a manual gearbox. For vehicles with an automatic gearbox, the indicator lamp in the instrument cluster, ICL, will always be on when there is an activation request for the power take-off.

Possible values:

• On – The indicator lamp is activated only when the power take-off has been as-sociated and an acknowledgement signal from the power take-off has been re-ceived.

• Off – The indicator lamp is activated when there is an acknowledgement request for the power take-off and the activation conditions are fulfilled.

Factory setting: On


Power take-off


Power take-off, preselected gearThis parameter applies to vehicles with split shaft power take-offs. The parameter states whether Opticruise is to associate a specific gear when split shaft power take-off is used. The selected gear controls the engine speed and torque into the gearbox and thereby changes the engine speed to the power take-off at the same time.

Possible values:

• Active, 1-12 (the value corresponds to the gear selected)• Inactive

Factory setting: Inactive

More information on the choice of gears can be found in the document Activation of split shaft power take-off.

Torque limitation for power take-offThis parameter protects the power take-off from damaging engine speeds by stating the upper limit for the torque produced by the engine when the power take-off is ac-tivated.

Possible values:

• Active, 0 Nm – maximum possible engine torque, in increments of 1 Nm

Factory setting: 6,000 Nm


Power take-off


Engine speed limitation for power take-offThis parameter protects the power take-off from damaging engine speeds by stating the upper limit for the engine speed when the power take-off is activated. The param-eter remains active even if you, for example, depress the accelerator pedal.

Possible values:




Power take-off


Type of activationThis parameter states how the power take-off equipment is activated.

Possible values:

• Manual – Activation takes place via a switch.The power take-off activation conditions must, however, be fulfilled for activa-tion to take place. If the switch is already on when the safety conditions are ful-filled, the switch must be switched off and on again to activate the power take-off.

• Automatic – Activation takes place when the switch is on and the activation con-ditions are fulfilledThe voltage must be on before the switch is activated, otherwise the switch must be switched off and then be reactivated. The power take-off is activated when all activation requirements are satisfied.

• Drive mode – Activation takes place when the switch is on and the activation con-ditions are fulfilled.The voltage does not need to be switched on before the switch is activated. The power take-off is activated when all activation conditions are fulfilled and the voltage is switched on.

Factory setting: Manual


Power take-off


Conditions for neutral positionThis parameter states how the power take-off is to be dependent on the gearbox being in neutral position.

Possible values:

• Off – Not dependent on neutral position.• Activate – The gearbox must be in neutral position when the power take-off is ac-

tivated.• Activate/Deactivate – The gearbox must be in neutral position when the power

take-off is activated. The power take-off is deactivated when the gearbox is no longer in the neutral position.

Factory setting: The value depends on the type of power take-off that is fitted

Conditions for parking brakeThis parameter states how the power take-off is to be dependent on the parking brake being applied.

Possible values:

• Off – Not dependent on parking brake being applied.• Activate – The parking brake must be applied when the power take-off is activat-

ed.• Activate/Deactivate – The parking brake must be applied when the power take-

off is activated. The power take-off is deactivated when the parking brake is no longer applied.



Power take-off


Conditions for reverse gearThis parameter states whether activation of the power take-off is to be inhibited when the reverse gear is engaged.

Possible values:

• On – The power take-off cannot be activated when the reverse gear is engaged.• Off – Not dependent on the reverse gear.


Upper engine speed limit for permitted activationThis parameter states an upper engine speed limit for activation of the power take-off. When the engine speed is higher than the specified value, the power take-off can-not be activated.

Possible values:

• On, 500-5,000 rpm in increments of 10 rpm• Off

Select Off if no upper engine speed limit is to be used.



Power take-off


Lower engine speed limit for enabling activationThis parameter states a lower engine speed limit for activation of the power take-off. When the engine speed is lower than the specified value, the power take-off cannot be activated.

Possible values:


Select Off if no lower engine speed limit is to be used.


Upper engine speed limit for deactivationThis parameter states an upper engine speed limit for deactivation of the power take-off. When the engine speed is higher than the specified value, the power take-off will be deactivated. Select Off if no upper engine speed limit is to be used.

Possible values:





Power take-off


Lower engine speed limit for deactivationThis parameter states a lower engine speed limit for deactivation of the power take-off. When the engine speed is lower than the specified value, the power take-off will be deactivated. Select Off if no lower engine speed limit is to be used.

Possible values:




Upper vehicle speed limit for permitted activationThis parameter states an upper vehicle speed limit for activation of the power take-off. When the vehicle speed is higher than the specified value, the power take-off cannot be activated.

Possible values:

• On, 1-150 km/h, in increments of 1 km/h• Off



Power take-off


Lower vehicle speed limit for enabling activationThis parameter states a lower vehicle speed limit for activation of the power take-off. When the vehicle speed is lower than the specified value, the power take-off cannot be activated.

Possible values:



Upper vehicle speed limit for deactivationThis parameter states an upper vehicle speed limit for deactivation of the power take-off. When the vehicle speed is higher than the specified value, the power take-off will be deactivated. Select Off if no upper vehicle speed limit is to be used.

Possible values:




Power take-off


Lower vehicle speed limit for deactivationThis parameter states a lower vehicle speed limit for deactivation of the power take-off. When the vehicle speed is lower than the specified value, the power take-off will be deactivated. Select Off if no lower vehicle speed limit is to be used.

Possible values:



Manoeuvring modeAutomatic manoeuvring mode for activated power take-offThis parameter applies to vehicles with power take-offs. Manoeuvring mode is auto-matically activated when the power take-off is activated. Manoeuvring mode is used to facilitate manoeuvring with e.g. hook lift trucks.

Possible values:

• Active• Inactive


Documents

Parameters – Powertrain Introduction