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Forward Collision Warning Radar System
User Manual
Document Number: 000-101986
FCW User Manual
000-101986 -Rev 3
Page 1 of 18
© 2023, Piaggio Fast Forward, Inc.

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Summary of Contents for Vayyar VYYR7204

  • Page 1 Forward Collision Warning Radar System User Manual Document Number: 000-101986 FCW User Manual 000-101986 -Rev 3 Page 1 of 18 © 2023, Piaggio Fast Forward, Inc.
  • Page 2: Table Of Contents

    Revision History 1. Purpose and Product Usage 1.1 Vayyar VYYR7204 Radar Specifications 1.2 Environmental 1.3 Mechanical Characteristics 1.4 Electrical Characteristics 1.5 Environmental 1.6 Manufacture Information 1.7 EU Restrictions 1.8 Radar Safety 2. Reference Standards 2.1 FCC/ISEL Decorations 2.1.1 Information for the user for operation and compliance with Chapter 15 of the FCC Rules and ISEL 2.1.2 Information for the user for operation and compliance with Chapter 15 of the FCC...
  • Page 3: Revision History

    Revision History Date Author Description 09/01/2023 Arthur L Initial creation 9/14/2023 Arthur L RF exposure distance updated to 20cm 9/18/2023 Arthur L RF exposure distance updated to 20cm for French FCW User Manual 000-101986 -Rev 3 Page 3 of 18 ©...
  • Page 4: Purpose And Product Usage

    RF sensing and tracking, MIMO radar, and RF imaging, planned to meet the requirements of the automotive and Robotics markets. VYYR7204 has a LO generation units supporting 76-77GHz . LO cascading allows multi-chip configuration for even larger antenna arrays / port count allowing ultra-high-resolution applications.
  • Page 5 Parameter Value Frequency Band 76-77 GHz Bandwidth 80 MHz No. Tx/Rx Antennas 22/23 Peak EIRP 30 dBmi Single Tx Antenna Gain 9.5 dBi Effective Antenna Gain 23 dBi (including MIMO) AZ FoV - Applicative ± 12.5° Tx Antenna Beamwidth ± 20° (3dB) Parameter Value Maximum Range...
  • Page 6: Environmental

    1.2 Environmental ● Operating Temperature: -20° C to 80° C ● Intrusion Protection: IP67 - Intended for Outdoor Use ● Approved for use in wet locations and exposure to direct weather conditions ● Humidity 20-95%rh ● Altitude up to 2750m ●...
  • Page 7 FCW User Manual 000-101986 -Rev 3 Page 7 of 18 © 2023, Piaggio Fast Forward, Inc.
  • Page 8: Electrical Characteristics

    1.4 Electrical Characteristics This unit is intended for OEM use and is not intended for any aftermarket applications. This unit must be part of the original vehicle design and part of the original vehicle harness. This can not be wired into an existing harness. When creating a harness design, the following considerations must be made: The CAN bus must have termination to a nominal 100-120 Ohms.
  • Page 9: Environmental

    1.5 Environmental ● Operating Temperature: -20° C to 80° C ● Intrusion Protection: IP67 - Intended for Outdoor Use ● Approved for use in wet locations and exposure to direct weather conditions ● Humidity: 20-95%rh ● Altitude up to 2750m ●...
  • Page 10: Reference Standards

    2.Reference Standards The FCW unit model F02129-FCW is compliant with the following standards. A Certificate of Conformity is located in Appendix A of this document. Certification Standards ● See Section 2.1 for operation and compliance RED testing and ● EN 62311:2008 certifications for EU ●...
  • Page 11: Fcc/Isel Decorations

    2.1 FCC/ISEL Declaration 2.1.1 Information for the user for operation and compliance with Chapter 15 of the FCC Rules and ISEL This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 12 2.1.2 Information for the user for operation and compliance with Chapter 15 of the FCC Rules and ISEL CAN ICES-3 (B)/NMB-3(B) This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions: This device may not cause interference;...
  • Page 13: Operation Specification

    3. Operation Specification 3.1 Digital Signal Processing (DSP) The DSP consists of the doppler radar and the mathematical manipulation of an information signal. Every (65-100ms), the velocity of the bike and the roll angle are received from ego and used in the subsequent radar return processing. Every target has a unique target ID that is used to track unique target tracks.
  • Page 14: User Fcw Warning Levels

    The Collision Estimator integrates all the information over time ( Target List, ego characteristics such as IMU, current speed ) and applies processing in accordance with ISO 15623:2013. If the Collision Estimator identifies a valid threat (following too close for the vehicle speed, or approaching another vehicle too fast that will lead to a collision ), it will inform the Business Logic of the specific threat, and in turn, the Business Logic will inform the ego of that threat The position coordinates are given in Cartesian coordinates, x, y, z with the location of 0, 0, 0...
  • Page 15: Auto-Alignment During Operation

    3.4 Auto-Alignment during operation The FCW performs alignment checks during normal use. Initial operation requires that a factory alignment is performed during assembly or an ego repair if the radar is replaced. The alignment check can correct for up to 3° of movement from initial calibration. Larger deviations will require a factory calibration.
  • Page 16: Dsp/Radar Characterization

    3.6 DSP/Radar Characterization The FCW tracks objects using a doppler shift and provides a three dimensional coordinate of the object being tracked. This is a long range radar operating as follows: Frequency Range: 76.45 – 76.95 GHz Peak EIRP 30dBmi Frequency Bandwith: ~80mHz Max Supported Range: 140m Single Tx Antenna Gain: 9.5dBi...
  • Page 17: Product Marking

    5. Product Marking The top side of every FCW radar unit is marked with important identifiers that will be used to track the product. Below is a detailed description of the information that is recorded in the product label. FCW User Manual 000-101986 -Rev 3 Page 17 of 18 ©...
  • Page 18: Appendix A - Declaration Of Conformity

    Appendix A - Declaration of Conformity Hereby, Piaggio Fast Forward declares that this F02129-FCW is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. (Attach when complete) FCW User Manual 000-101986 -Rev 3 Page 18 of 18 ©...

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