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NI 9758 User Manual
Platform Compatibility
NI Powertrain Control modules require a hardware support system to function. You cannot use
the modules independently or interfaced with third-party devices at the backplane HD15
connector. NI Powertrain Control modules are compatible with the following National
Instruments platforms:
•
CompactRIO, which consists of a CompactRIO controller, chassis, or integrated
controller/chassis.
•
NI PXI, which consists of any NI PXI chassis, NI PXI RT controller, and NI PXI-78
xx
R
R Series FPGA card. The NI Powertrain Control modules insert into an NI R Series
expansion chassis. Connect an NI R Series expansion chassis to the NI PXI FPGA card
using a SHC68-68-RDIO cable.
Note
NI Powertrain Control modules are not compatible with the National
Instruments CompactDAQ chassis.
You can use NI Powertrain Control modules with NI cRIO-911
x
, NI cRIO-907
x
, and NI R Series
Expansion systems under the following conditions:
•
Leave one empty chassis slot between NI Powertrain Control modules and other NI
modules.
•
Maintain an ambient system operating temperature of 0 °C to 45 °C.
Note
Typical specifications of National Instruments modules might not apply when
used in a system with NI Powertrain Control modules.
Note
National Instruments guarantees warranted specifications for all National
Instruments modules except thermocouple modules when used in a system with
NI Powertrain Control modules.
Note
National Instruments recommends the NI 9214 for thermocouple
measurements in CompactRIO systems using NI Powertrain Control modules.
Note
NI Powertrain Control modules do not support Scan Interface mode,
auto-detection, or ID mode.
Port Fuel Injector Drivers
Each PFI driver channel is capable of driving low or high impedance port fuel injectors.
Driving Low Impedance Injectors
Low impedance injectors will have approximately 2
Ω
resistance across the solenoid which
allows a higher current through the solenoid to enable faster valve opening times. High current
is not needed for the entire duration of the injection event in order to keep the valve open. The
initial current level is referred to as the peak current and the current level for the remaining
injection duration is referred to as the hold current. The standard configuration for the PFI
drivers is a peak current of 4 A and a hold current of 1 A.
