National Instruments NI DIDS-2103, Руководство пользователя

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DIX_BackBoostTime
Tip Strip: Time period during which injector solenoid energy is directed back to the module boost power
supply (after end of pulse)
Units: msec
Detail: The time period at the end of the injection pulse for which the back-electromotive force (EMF) of the
injector solenoid is directed to the internal boost power supply.
IPhaseArray
When operating solenoid injectors, the IPhaseArray defines up to eight sequential current-drive phases
within each injection command. Each phase is implemented sequentially and can specify upper and lower
current dithering setpoints, phase duration , and drive circuit – high voltage or battery voltage . The high
voltage drive circuit should only be used as little as necessary so that the internal boost power supply
energy is conserved and not overloaded. Please refer to the DI Driver Rev F manual for various IPhaseArray
configurations and the resulting current profile of the Solenoid injector. The IPhaseArray consists of the
following parameters:
IPhaseDrive
Tip Strip: Selects low voltage or high voltage for the associated phase
Detail: When operating solenoid injectors, selecting these buttons will toggle the voltage drive source
of the associated phase between high voltage (HV) and battery voltage (LV) .
IPhaseArray is used differently in piezo mode by enabling DIX_PiezoEnable . The eight elements of
the IPhaseArray are divided into two groups. The first four elements are used for charging the piezo
load at the beginning of injection, and the last four elements are used for discharging the piezo load
at the end of injection. The ability to select HV or LV for each phase is not available for piezo injector
operation because the high voltage driver circuit is always used (as shown below).
IPhaseCurrentUpper
Tip Strip: Upper current dithering setpoint
Units: Amps
Detail: Upper threshold for current dithering set-point in Amps.