National Instruments D000017 Rev B User Manual Download Page 17

Drivven, Inc. 

 

Throttle Driver Module Kit 

  © Drivven, Inc. 2009 

• Throttle Driver Module Kit User’s Manual • D000017 • Rev B 

17

 

should be avoided.  Otherwise an over-current or over-temp fault will result. 
 

 

 

Throttle2PulseWidth

 The time during each Throttle2Period in which the PWM 

pulse train to h-bridge circuit 2 is active.  This value is signed, and represents 
direction of current flow through the h-bridge circuit.  A positive value represents 
positive current flowing from terminal H2B to H2A.  Throttle2PulseWidth is 
entered in terms of 4 MHz clock ticks.  While Throttle2PulseWidth is 0, h-bridge 
circuit 2 will remain inactive.  While Throttle2PulseWidth is greater than or equal 
to Throttle2Period, h-bridge circuit 2 will remain fully active.  This condition 
should be avoided.  Otherwise an over-current or over-temp fault will result. 
 

 

 

ThrottlePinInput

 These Boolean controls must be connected to their corresponding 

FPGA I/O Node input item. 
 

 

 

ThrottleData

 The ThrottleData cluster should be terminated with an indicator cluster and 

made available as a complete cluster for interfacing to the 
throttle_rt_data_convert_revx.vi at the RT level.  No FPGA code interface is required with 
any of the members of this cluster. 
 

 

 

ThrottlePinOutput

 The Boolean indicator named IDSelectEn must be connected to a 

Set Output Enable method of an FPGA I/O Method Node.  The Boolean indicator named 
IDSelectOut must be connected to a Set Output Data method of an FPGA I/O Method 
Node.  The remaining Boolean indicators must be connected to their corresponding 
FPGA I/O Node output item. 
 

Summary of Contents for D000017 Rev B

Page 1: ...ivven Inc 12001 Network Blvd Bldg E Suite 110 San Antonio Texas 78249 USA Phone 210 248 9308 Web www drivven com E mail info drivven com Throttle Driver Module Kit User s Manual D000017 Rev B March 20...

Page 2: ...v B 2 Contents Introduction 3 Pinout 4 Hardware 5 Powering the Module 5 Platform Compatibility 6 H Bridge Drivers 8 Analog Inputs 8 Software Installer 12 Creating a LabVIEW Project 14 Sub VI Documenta...

Page 3: ...A VI for controlling two H Bridge driver channels independently Also provided are a set of RT VIs which allow the user to calibrate the throttle control algorithm in engineering units The FPGA VI may...

Page 4: ...Drivven Inc Throttle Driver Module Kit Drivven Inc 2009 Throttle Driver Module Kit User s Manual D000017 Rev B 4 Pinout...

Page 5: ...ew terminal connector The terminals are labeled BATT 0 and GND 9 Typical power sources will be from automotive 12V or 24V battery systems However the module can accept power from a range of 6V to 32V...

Page 6: ...is must be connected to the PXI FPGA card via a SHC68 68 RDIO cable The CompactRIO modules insert into the R Series expansion chassis This platform is shown in Figure 1b below Figure 1b PXI platform c...

Page 7: ...ications of NI modules may not apply when used in a system with Drivven modules Warranted specifications are guaranteed for all NI modules except thermocouple modules when used in a system with Drivve...

Page 8: ...ic Throttle Driver Module provides two external analog inputs for accepting 0 5V signals The primary purpose of these inputs is for measuring potentiometer voltages A regulated 5V output and ground te...

Page 9: ...ver when two electronic throttle bodies are used only one position signal from each throttle may be connected to the module and redundant throttle position is not available However the additional posi...

Page 10: ...onic throttle bodies Table 1 Connection table specific for standard Bosch DV E5 electronic throttle bodies DV E5 Pin Description Module Terminal Throttle1 Throttle2 Description 1 Motor T2 T4 H1A H2A 2...

Page 11: ...Diameter mm Bosch Part Number 32 0 280 750 148 40 0 280 750 149 60 0 280 750 151 68 0 280 750 152 The following connector parts for standard Bosch throttle bodies are available through Drivven if a t...

Page 12: ...and open the example project to experiment with the module or use as a starting point for a new application All software files example projects and documentation are installed to C Program Files Nati...

Page 13: ...vx vi along with additional calibration values One or two instances of this VI may be used depending on the number of throttle driver channels being utilized The resulting period and pulsewidth output...

Page 14: ...click on the RT target within the project and navigate to New Targets and Devices 8 Within the Add Targets and Devices dialog select the appropriate radio button depending on whether you already have...

Page 15: ...ed in the block diagram when connecting the module VI PinInput and PinOutput clusters to FPGA I O nodes The example application discussed below should be consulted for further details about connecting...

Page 16: ...module to operate When the module is properly recognized then the ModulePresent Boolean within the ThrottleData cluster will be set to TRUE WatchdogIn WatchdogIn must be toggled at a rate greater than...

Page 17: ...le2Period h bridge circuit 2 will remain fully active This condition should be avoided Otherwise an over current or over temp fault will result ThrottlePinInput These Boolean controls must be connecte...

Page 18: ...revx vi may be used for monitoring or control purposes If the external analog inputs are used for position control feedback then they must be converted to throttle angle by means of a transfer functio...

Page 19: ...ed ThetaLHErrThresh deg Limp home compensation uLHc is updated when ThetaR is within ThetaLHErrThresh degrees of ThetaLH above or below ULH V Voltage added or subtracted to the PID output when ThetaR...

Page 20: ...ned integer of 4 MHz clock ticks required to achieve the PWM duty cycle calculated by the throttle_rt_control vi Should be wired to the FPGA to the throttle_revx vi ThrottleControl cluster for the des...

Page 21: ...nput 2 Battery V The filtered battery voltage supplied to the module Temperature C The filtered internal module temperature ModulePresent When TRUE then software has properly detected a Throttle Drive...

Page 22: ...Drivven Inc 2009 Throttle Driver Module Kit User s Manual D000017 Rev B 22 Fault2 When TRUE then an over current or over temperature fault has occurred with h bridge circuit 2 and operation will be i...

Page 23: ...onic throttle bodies typically have stiffer spring return rates applied to angles below the limp home region 3 A limp home compensation value is added to the PID value to assist with travel through th...

Page 24: ...It is recommended that the user begin control calibration with zero for all Lead Lag PID and compensation calibration parameters Begin tuning PID gains for angles above ThetaLH Then introduce TLead an...

Page 25: ...turing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For addition...

Page 26: ...the signal cable as close to the module as possible Placing the ferrite elsewhere on the cable noticeably impairs its effectiveness Determine the clamp on ferrite beads to install based on your applic...

Reviews: