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Humanetics HITECSENSORS 01184 Operating Manual

Ir telemetry steering effect sensor
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OPERATING MANUAL
IR TELEMETRY
STEERING EFFECT
SENSOR
(MODEL 01184)
1

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Summary of Contents for Humanetics HITECSENSORS 01184

  • Page 1 OPERATING MANUAL IR TELEMETRY STEERING EFFECT SENSOR (MODEL 01184)

  • Page 2: Table Of Contents

    CONTENTS Introduction System Overview System Components Installation Installing The System Operating The System Calibration Collecting Data Overview Of System Electronics 9-13 Infra-Red (IR) Transmitter IR Receiver/Encoder to Analog Converter CAN Output (Optional) Appendix 14-17 Specifications 14-16 Service Warranty Repair Services To find out more visit hitecsensors.com 15July2021_OM04/1...

  • Page 3: Introduction

    INTRODUCTION SYSTEM OVERVIEW HITEC Sensor Developments IR Telemetry Steering Effort Sensor (Model 01184) is designed to measure the amount of effort needed to turn the steering wheel and the angular position of the steering wheel. This system provides: A 10 in. through-hole for uninhibited deployment of an air bag without the danger of the sensor being projected at •...
  • Page 4 The Angular Position Sensor The angular position sensor is an optical encoder mounted on the inside of the front windshield. A drive train assembly rotates the drive shaft attached to the encoder as the steering wheel sensor is turned. When the chain is installed, and both gears are properly aligned, the IR emitters in the sensor are also properly aligned with the IR detector mounted to the encoder housing.

  • Page 5: Installation

    INSTALLATION INSTALLING THE SYSTEM To install the system: Step 1: Mount the steering effort sensor to the vehicle’s steering wheel. A. Position the sensor so that it rests firmly against the front of the steering wheel. B. Adjust all four mounting brackets for the proper fit. Make certain to adjust all four brackets symmetrically. Figure 4: Step 1B - Mounting brackets C.
  • Page 6 B. Place the drive chain around the gear of the steering effort sensor. C. Position the angular position sensor on the windshield so that: The angle encoder is NOT in the drivers direct line of vision • The drive chain is taut •...
  • Page 7 Step 3: Connect the angular position sensor (encoder) to the receiver. The IR detector’s power and digital data signals are also carried through this cable/connector. Step 4: Connect the encoder signal outputs of the receiver to the data acquisition system. Step 5: Connect the torque sensor signal outputs of the receiver to the data acquisition system.

  • Page 8: Operating The System

    OPERATING THE SYSTEM CALIBRATION This unit was calibrated at the factory. Calibration sheets have been provided with the unit specifying what each output will provide for a given input. The calibration on the torque output can be measured very accurately using the shunt cal. Refer to Figure 7 for location of the shunt button.

  • Page 9: Overview Of System Electronics

    OVERVIEW OF SYSTEM ELECTRONICS INFRA-RED (IR) TRANSMITTER The transmitter consists of a strain gage amplifier, a 4 pole low pass butterworth filter, analog to digital converter, control electronics, and an array of IR LED’s. The basic operation is that, when powered up, the transmitter amplifies the signal from the torque sensor, filters it, digitizes it and sends it out by pulsing the IR emitters to transmit the code. Figure 7: Infra-Red (IR) Transmitter Under normal operation, the power indicator (see Figure 7) will blink indicating that the unit is powered up and transmitting normally. The power switch (Figure 7) controls power to the unit. The shunt button is used to verify calibration of both this sensor, and any subsequent data acquisition system.

  • Page 10: Ir Receiver/Encoder To Analog Converter

    IR RECEIVER/ENCODER TO ANALOG CONVERTER The receiver consists of an Infra-Red detector unit (mounted at the encoder), control electronics, digital to analog (D/A) converters and buffer/filters. Basic operation is: Step 1: Connect to the required signal outputs as shown in Figure 8a or 8b. Step 2: Connect the encoder as shown in Figure 9. Step 3: Connect power to the power input pins as shown in Figure 9 and turn on the power switch.

  • Page 11: Can Output (Optional)

    The unit will receive a digital signal from a near-by transmitter. When this happens, the green “good data” indicator will light showing that the digital data was recovered without error. The good data is then fed to the Digital to Analog converter, and on to the analog output. The analog output is buffered and filtered. The filter is there to smooth the steps that are inherent in the output of the D/A converter.
  • Page 12 The CAN output is designed to connect directly to a differential CAN bus, and supports the CAN 2.0B standard. The 01184 allows the user to select, via a USB Setup program (install from supplied CDROM), which items will be placed onto the CAN bus.
  • Page 13 The user may zero the Torque and/or the Angle using the Zero Torque and Zero Angle buttons. These values are recorded/saved immediately when the button is pressed. There is no Zero Rate, as Rate is inherently zero when the sensor is not in motion. The Live update on the screen shows real time data in the engineering units shown above the Live display.

  • Page 14: Appendix

    APPENDIX SPECIFICATIONS TORQUE TRANSDUCER DATA Capacities (in-lbs) 200, 500, 1000 Output at Full Scale (nominal) (V) ±5 Optional Output at Full Scale (nominal) (V) ±10 Optional Output at Full Scale (nominal) (V) +2.5 ±2.5 Overload Capacity (%) 150 of FS Hysteresis (%) 0.25 of FS Non-linearity (%)
  • Page 15 IR TRANSMISSION SYSTEM Analog Output (nominal) (V) ±5 Optional Analog Output (nominal) (V) ±10 Optional Analog Output (nominal) (V) +2.5 ±2.5 Output low pass filter 2 pole @ 1000Hz Resolution (%) 0.005 of FS Transmitter (V) 9 battery Receiver (VDC) 10 - 28 Transmitting range (in) 2 - 10 POSITION/VELOCITY SYSTEM...

  • Page 16: Service Warranty

    Rate Output Resolution (degrees) 0.20 Maximum Range (degrees) ± 1638.4 Signal Output at maximum range (VDC) ±5 Optional Signal Output at maximum range (VDC) ±10 Optional Output at maximum range +2.5V ±2.5VDC Update rate (second) 2000 updates Low pass filter 2 pole @1000Hz POWER REQUIREMENTS FOR IR RECEIVER Voltage range (VDC)

  • Page 17: Repair Services

    REPAIR SERVICES HITEC Sensor Developments products requiring repair should be returned freight prepaid to: Attention - Service Department. Information should be included stating what is wrong with the item(s) returned and name of contact. No item shall be returned for repair which has been exposed to hazardous materials without suitable decontamination. Hazardous materials include, but are not limited to: poisons, materials capable of producing toxic fumes, radioactive waste materials which can spread viral or other diseases and materials which pose hazards by airborne ingestion, such as asbestos.

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