Features and Parameters

Information on each Vehicle Setup feature and parameter follows. Most of these features and parameters will not be changed after the vehicle is put into service. They are critical to the operation of the engine's control system.

Vehicle Setup Application Type
Specify the vehicle's appropriate application type. Choices are On Highway and On/Off Highway. The On Highway choice should be made if the vehicle is used primarily in long haul/highway situations. This parameter helps the control system understand how the vehicle is used and is required to assist the control system in the detection of vehicle speed signal tampering.

Vehicle Setup Rear Axle Ratio
Specify the vehicle's rear axle ratio for single-speed axle configurations. The range is between 2.00 and 16.00.

Vehicle Setup Tire Revolutions Per Distance
Specify the number of tire revolutions per mile. This parameter directly relates to tire size and manufacturer. The range is between 300 and 700 revolutions per mile.

Vehicle Setup Transmission Type
Specify the type of transmission used by the vehicle. The choices are Automatic and Manual.

Vehicle Setup Transmission # of Tailshaft Teeth
Specify the number of teeth on the transmission tailshaft. This parameter is required when the OEM uses a magnetic vehicle speed sensor in the transmission tailshaft. The range is between 1 and 255.

Vehicle Setup Transmission Pulses Per Mile
Specify the number of pulses per mile the 'other' vehicle speed sensor will generate. This parameter is only required when the OEM uses a constant pulse per mile vehicle speed sensor, such as a tachograph. In this case, the Vehicle Speed Sensor Type parameter will be chosen as 'Other'. The range is between 0 and 4,000,000.

Vehicle Setup Transmission Top Gear Ratio
Specify the top gear ratio of the vehicle transmission. The range is between 0.10 and 2.00.

Vehicle Setup Transmission One Gear Down Ratio
Specify the ratio of the next highest gear of the vehicle transmission. The range is between 0.10 and 5.00.

Vehicle Speed Sensor(VSS) Type
Specify the type of vehicle speed sensor (VSS). The choices are None, Magnetic, 1939 Datalink, and Other. This parameter sets the control system up with the correct signal for vehicle speed. It is critical to the proper operation of all features that reference vehicle speed. The '1939 Datalink' choice must use a signal for tailshaft speed supplied by the transmission.The 'other' choice is setup for a constant pulse per mile device such as a tachograph.

Engine Brake Vehicle Braking Option
The ISL can be fitted with an optional Engine Compression Brake which is fully integrated into the ISL electronic control system, and can be programmed to interact with other engine features like Cruise Control and Fan Control.

Cruise Control Switch Setup
Specify the setup of the cab accessory switches used to regulate the cruise control feature. The choices are 'Set/Accel and Resume/Coast' and 'Set/Coast and Resume/Accel'.

Engine Performance Maximum Switched Engine Speed
Choose this feature if the vehicle is setup to limit engine speed with a switched input. Specify the maximum speed the engine can achieve when the switch input is active. It is designed to limit engine speed while other vehicle systems are active.

An example would be a refuse vehicle equipped with a continuous packing system. The hydraulic pumps that run this system may be rated at 1500 rpm. In this case, the OEM would program the Engine Performance Maximum Switched Engine Speed to 1500 rpm and wire the packing system switch into the engine control system. With the packing system engaged the engine speed would be limited to 1500 rpm. This prevents accidental overspeed of the packing system hydraulic pumps and eliminates the chances of operator error, misuse, or abuse.

Powertrain Protection
Choose this feature if the benefits of Powertrain Protection are desired. Transmissions today are designed with a nominal input torque rating; however, the absolute capacity will vary greatly with respect to gear ratio. The Powertrain Protection feature allows the user to tailor the engine's torque output to maximize performance at each gear ratio. This means that performance of the vehicle under certain circumstances may be increased without the specification of more expensive driveline components.

Powertrain Protection Gear Ratios
Specify the gear ratio of the Lowest Gear of the Transmission Top Gear Range and the gear ratio of the Lowest Gear of the Transmission Intermediate Gear Range. These ratios will be used as the borders for engine torque output limitation. This value is used in conjunction with the Powertrain Protection Torque Limit parameter to maximize performance and prevent equipment damage by tailoring the engine's torque output to the vehicle configuration.

The gear ratio range is between 0.5 and 16.0. The ratios MUST be programmed in ascending order.

Powertrain Protection Torque Limits
Specify the torque values to setup the Powertrain Protection torque limits. These torque values will be used as the maximum torque output limit for the corresponding gear ratio (see example and graph below). These values are used in conjunction with the Powertrain Protection Gear Ratio parameter to maximize performance and prevent equipment damage by tailoring the engine's torque output to the vehicle configuration.

The torque range is between 0 and 10,000 ft-lbs.

Powertrain Protection Setup Example:

#

Gear Ratio**

Torque Limit

1

1

800 ft-lbs

2

3

700 ft-lbs

3

5

600 ft-lbs

4

7

500 ft-lbs

** Must be programmed in ascending order.

Powertrain Protection Lugback
Choose this feature if the benefits of the Powertrain Protection Lugback feature are desired. When this feature is active the engine will distinguish light load and heavy load (lugback) conditions. If a lugback situation is sensed, the Powertrain Protection feature will work normally and limit torque to protect the drivetrain. If a light load situation is detected, the engine will not limit torque until the second gear ratio limit is met.

This allows the engine to maximize performance when the vehicle is in top gear at high speeds without overloading the driveline under lugback conditions. The feature is effective for applications that spend a significant portion of operation under highway driving conditions.

Powertrain Protection Axle Torque Limit
Specify the maximum torque limit of the vehicle axle. This parameter is used to protect equipment from damage due to excessive torque output of the engine.

Engine torque output will be limited to this maximum value when this parameter is specified. The torque range is 0 to 65,000 ft-lbs.

Powertrain Protection Switched Torque Limit
Choose this feature if the vehicle is setup to limit engine torque with a switched input. Specify the maximum torque output the engine can achieve when the switch input is active. This feature is designed to limit engine torque while other torque sensitive vehicle systems are active.

An example would be a vocational vehicle equipped with a deep reduction transmission. These transmissions usually have a lower torque limitation during the use of the deep reduction gear. The deep reduction gear may be rated at 500 ft-lbs. In this case, the OEM would program the Powertrain Protection Switched Torque Limit to 500 ft-lbs and wire a switch into the engine control system that engages when the deep reduction gear is used. When the transmission is shifted into deep reduction gear, the engine would be limited to a maximum torque output of 500 ft-lbs. This prevents accidental damage of the deep reduction gear and eliminates the chances of operator error, misuse, or abuse. The range is between 0 and 10,000 ft-lbs.

Fan Control 1 Fan Type
Choose this feature if the vehicle is equipped with an engine controlled fan clutch. If the fan clutch is integrated into the ISL electronic control system, it can be programmed to interact with other engine features like Engine Brake Control.

Specify the type of fan clutch to be controlled by the engine. The choices are ON/OFF and Variable Speed.

Fan Control 1 Signal 1
Specify the desired logic of the fan clutch signal if the vehicle is equipped with an engine controlled fan clutch. The choices are '12 Volts On' and '0 Volts On'.

Fan Control 1 Air Conditioner Pressure Switch
Choose this feature if the vehicle is equipped with an air conditioner pressure switch to control fan clutch engagement.

Fan Control 1 Air Conditioner Timer
Specify the minimum amount of time the fan will run, if engaged due to an air conditioner pressure switch input. This parameter is required if the vehicle is equipped with an air conditioner pressure switch to control fan clutch engagement. The timer limits fan cycling and lengthens the life of fan clutches.

Fan Control 1 Engine Braking
Choose this feature if the engine controlled fan clutch is to be engaged when the vehicle's engine brake is active. The added horsepower draw at fan engagement makes the braking operation more effective.

Fan Control 1 Accessory Switch Control
Choose this feature if the vehicle is equipped with an accessory switch to control fan clutch engagement.

OEM Ambient Air Temperature Sensor Enable
Indicates to the tool whether the Ambient Air Temperature Sensor is enabled in the ECM.

Crankcase Ventilator Heater Enable
This feature will request that the Crankcase Ventilator Heater be turned when the engine is being operated in cold conditions and the Crankcase Ventilator is frozen with ice.

Feature / Parameter

Range

Default

Application Type - Parameter

On Highway / On-Off Highway

On Highway

Rear Axle Ratio - Parameter

2.00 - 16.00

OEM

Tire Revolutions Per Distance - Parameter

300 - 700 rev/mile

501 rev/mile

Transmission Type - Parameter

Automatic/Manual

OEM

Transmission # of Tailshaft Teeth - Parameter

1 - 255 teeth

OEM

Transmission Pulses Per Mile - Parameter

0 - 4,000,000 pulses/mile

OEM

Transmission Top Gear Ratio - Parameter

0.10 - 2.00

OEM

Transmission One Gear Down Ratio - Parameter

0.10 - 5.00

OEM

Vehicle Speed Sensor(VSS) Type - Parameter

None / Magnetic / Other

Magnetic

Engine Brake Vehicle Braking Option - Feature Option

Enable/Disable

Enable

Cruise Control Switch Setup - Parameter

Set-Coast and Resume-Accel, or Set-Accel and Resume/Coast

Set-Coast and Resume-Accel

Engine Performance Maximum Switched Engine Speed - Parameter

1400 - 2330 rpm

2330 rpm

Powertrain Protection - Feature Option

Enable/Disable

OEM

Powertrain Protection Gear Ratios - Parameter

0.1 - 32.0

OEM

Powertrain Protection Torque Limits - Parameter

0 - 10,000 ft-lbs

OEM

Powertrain Protection Lugback - Feature Option

Enable/Disable

OEM

Powertrain Protection Axle Torque Limit - Parameter

0 - 65,000 ft-lbs

OEM

Powertrain Protection Switched Torque Limit - Parameter

0 - 10,000 ft-lbs

OEM

Fan Control 1 Fan Type - Feature Option

Fixed / Variable

Fixed(On/Off)

Fan Control 1 Signal 1 - Parameter

12 Volts ON / 0 Volts ON

OEM

Fan Control 1 Air Conditioner Pressure Switch - Feature Option

Yes/No

OEM

Fan Control 1 Air Conditioner Timer - Parameter

0 - 180 seconds

OEM

Fan Control 1 Engine Braking - Feature Option

Enable/Disable

Enable

Fan Control 1 Accessory Switch Control - Feature Option

Yes/No

OEM

OEM Ambient Air Temperature Sensor Enable - Feature Option

Enable/Disable

OEM

Crankcase Ventilator Heater Enable - Feature Option

Enable/Disable

Disable