The NI 9751 can drive typical common rail diesel solenoid injectors, gasoline direct injectors, and piezo-actuated injectors. It accommodates up to three solenoid direct injectors or two piezo injectors, but you must use the same injector type per module. You can individually control each NI 9751 channel for timing and duration, but channel operation cannot overlap. When you configure the NI 9751 for piezo mode, channel 3 is not available and you must short its terminals together.
21-Channel C Series AD Combo Module—The NI 9752 offers a set of automotive-style analog and digital inputs to interface with standard automotive sensors. The module includes two-channel adaptive variable reluctance (VR) sensor inputs, and two-channel Hall effect sensor or general-purpose digital inputs. You can individually configure each channel using surface-mount components with pull up, pull down, divide, and resistor-capacitor (RC) lowpass filters.
The National Instruments 9753 Differential Digital I/O Module includes a CompactRIO (cRIO) module with eight individually controlled inputs or outputs with 50 ns resolution. When the channels are configured as outputs, the channels can be controlled by a customized Boolean logic or by specialized fuel and spark VIs included with the NI 9753, in which case, an Engine Position Tracking (EPT) VI is also required.The NI 9753 fuel and spark VIs provide control similar to that of NI’s fuel and spark driver module kits. The NI 9753 outputs do not drive current sufficient for driving fuel injectors or ignition coils. The outputs can be used for commands to
external custom driver circuits or smart actuators with built-in driver circuits. Multiple fuel and spark VIs can be wired together through OR logic gates to deliver multi-pulse engine-synchronous commands to a single output. When the channels are configured as inputs, the Boolean signals from these channels can be used as general purpose Boolean Trigger signals within the LabVIEW FPGA application.
The NI 9757 provides an interface for two Bosch LSU 4.2 or LSU 4.9 wideband exhaust oxygen sensors and four differential narrowband oxygen sensors. The NI 9757 device driver allows user calibration of stoichiometry versus pump current for a variety of fuel types (gasoline/diesel default). O2 measurements are reported as A/F, F/A, Lambda, and Phi. The NI 9757 has serviceable, fuse 10protected heater control circuits.
The NI 9758 drives four low- and high-impedance port fuel injectors (PFI) and four general-purpose automotive solenoid valves. Each PFI driver is individually controlled for timing, duration, and two current phases. Each general 10purpose, low 10side solenoid driver is pulse width modulation (PWM) controlled and capable of 0 to 100 percent duty cycle operation. The NI 9758 also features open and short circuit detection and reporting.
The NI 9759 provides two H Bridge driver channels that can drive typical passenger car electronic throttle bodies, such as the popular Bosch DV E5. The NI 9759 features short-circuit and over 10 temperature protection with fault reporting. An external power supply of 11 V to 32 V is required. The NI 9759 device driver includes LabVIEW FPGA and LabVIEW Real-Time VIs for throttle position control. The module can control a wide variety of valves requiring position control with bidirectional DC motors and analog position feedback. You can measure valve position feedback with other C Series modules and process the data with the position control software.
The C Series VR/Hall Interface Module features six differential input channels that can be individually configured as variable reluctance (VR) or Hall-effect sensor input. Each channel features an external digital output, which passes out the conditioned, digital version of the VR/Hall input signal. The VR circuits use adaptive noise rejection during continuous incoming VR pulses. Fixed arming thresholds can be configured via digital-to-analog converter (DAC) setpoints. The Hall-effect circuits read single-ended or differential digital signals from Hall-effect sensors, proximity sensors, or any digital signal sources.
LHPTS engineers developed a comprehensive solution using the NI CompactRIO ecosystem, several Powertrain Control Modules, and NI LabVIEW software.
