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Heinzmann ARIADNE Manual

Knock control
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This publication may not be reproduced by any means whatsoever or passed on to any third parties.
5835
HEINZMANN
Engine & Turbine Management
ARIADNE
Knock Control
KC-01
Copyright 2011 by Heinzmann GmbH & Co. KG. All rights reserved.
Heinzmann GmbH & Co. KG
Engine & Turbine Management
Am Haselbach 1
D-79677 Schönau
Germany
Phone
+49 7673
8208 - 0
Fax
+49 7673
8208 - 188
E-mail
info@heinzmann.de
www.heinzmann.com
V.A.T. No.: DE145551926
Manual DG 06 001-e / 09-10

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Summary of Contents for Heinzmann ARIADNE

  • Page 1 Engine & Turbine Management ARIADNE Knock Control KC-01 Copyright 2011 by Heinzmann GmbH & Co. KG. All rights reserved. This publication may not be reproduced by any means whatsoever or passed on to any third parties. Manual DG 06 001-e / 09-10 5835...
  • Page 3 All instructions pertaining to the system and safety must be followed in full. Non-observance of the instructions may lead to injury to persons and/or material damage. HEINZMANN shall not be held liable for any damage caused through non-observance of instructions. Independent tests and inspections are of particular importance for all applications in which a malfunction could result in injury to persons or material damage.
  • Page 4 HEINZMANN expressly rejects any implied guarantee pertaining to any marketability or suitability for a special purpose, including in the event that HEINZMANN was notified of such a special purpose or the manual contains a reference to such a special purpose.

  • Page 5: Table Of Contents

    2 Introduction ..........................5   3 Knocking Combustion ......................7   4 ARIADNE Advantages ......................9   5 ARIADNE Design and Features ..................11   6 Application ..........................13   6.1 Stand-alone Knock Control Unit ................... 14   6.2 Fully integrated Knock Control Unit ................15  ...

  • Page 7: Safety Instructions And Related Symbols

    The text must therefore al- ways be read in full! This symbol does not refer to any safety instructions but offers important notes for better understanding the functions that are being discussed. They should by all means be observed and practiced. ARIADNE Knock Control...

  • Page 8: Basic Safety Measures For Normal Operation

    Replace at once any damaged lines and/or cables!  Keep the cabinet always closed. Access should be permitted only to authorized per- sons having a key or tools.  Never use a water hose to clean cabinets or other casings of electric equipment! ARIADNE Knock Control...

  • Page 9: Before Putting An Installation Into Service After Maintenance And Repair Works

    Check on all slackened screw connections to have been tightened again!  Make sure the control linkage has been reattached and all cables have been reconnected.  Make sure all safety devices of the installation are in perfect order and are working properly! ARIADNE Knock Control...
  • Page 10 1 Safety Instructions and Related Symbols ARIADNE Knock Control...

  • Page 11: Introduction

    Performance and Protection, these words have been the heart of the design for ARIADNE, HEINZMANN’s Knock Control System (↑ Figure 1). With ARIADNE on board, HEINZ- MANN will give you the thread to guide you in your quest for improved engine performances and avoid the threat of knock.

  • Page 13: Knocking Combustion

    After 80 years of research, it is clear that the question today is not how to basically suppress knocking combustion as such, which is illusory, but how to best deal with this remaining threat in the future engine developments, making a reliable knock control system a major key for increased engine performances. ARIADNE Knock Control...
  • Page 14 3 Knocking Combustion Cylinder pressure without knocking Crankshaft angle [°] Figure 2: Normal combustion, cylinder pressure without knocking Cylinder pressure with heavy knocking Crankshaft angle [°] Figure 3: Uncontrolled combustion, cylinder pressure with heavy knocking ARIADNE Knock Control...

  • Page 15: Ariadne Advantages

     ARIADNE protects gas engines against damages caused by knocking combustion.  With ARIADNE on board, engines can safely be run close to the knock limit which means high efficiency and low emissions.  ARIADNE makes the use of fluctuating fuel gas quality possible.

  • Page 17: Ariadne Design And Features

    CAN-bus. Figure 4: Typical Knock Sensor, Bosch-Type  ARIADNE makes use of dedicated Digital Signal Processors to suppress all kind of knock sensor signal corruptions, for instance due to vibrations caused in normal operation by the different gas engine components. Configurable knock measuring windows, digital ampli- fiers, band-pass filters and integrators are provided ensuring that the knock level calculat- ed by ARIADNE fairly reflects the real knock intensity inside the cylinder.
  • Page 18 IP55 version for direct on-engine mounting (sensor connection over plug-in connect- ors).  ARIADNE has been developed to fit in all possible gas engine control designs, from a stand-alone unit to a fully integrated part of the gas engine management system, thus fea- tured with a large range of I/O possibilities.

  • Page 19: Application

     Rated load from 100 … 8000 kW  Number of cylinders from 4 … 20 ARIADNE has been designed to suit all gas engine control system applications. In order to give an idea of the range of possible applications, 2 usual configurations are described in the following in some more details.

  • Page 20: Stand-Alone Knock Control Unit

    6 Application 6.1 Stand-alone Knock Control Unit When used as stand-alone unit, ARIADNE’s analog output can directly be wired to the ig- nition system, transmitting the knock severity measured on the engine (maximum of all cylinders knock levels). This 4-20mA or 0-5V signal acts as offset on the engine nominal spark angle.

  • Page 21: Fully Integrated Knock Control Unit

    6 Application 6.2 Fully integrated Knock Control Unit ARIADNE can also be configured as part of a highly integrated gas engine management. This can be particularly useful to fine tune every cylinder individually when combustion and load can be controlled on each cylinder separately. In this case ARIADNE communi- cates and receives all needed information over CAN-bus (cylinder knock levels, load measurement).
  • Page 22 6 Application ARIADNE Knock Control...

  • Page 23: Knock Sensor

    800 ... 1400 pF Temperature dependence of sensitivity ≤ 0,06 mV/g · K Operating temperature range - 40 ...+ 150 °C Permissible sustained vibration ≤ 80 g Permissible short-term vibration ≤ 400 g Figure 9: Sensor dimensions ARIADNE Knock Control...

  • Page 24: Installation

    Figure 10: Mounting Instructions Installation position of the sensor: ARIADNE is flexible knock detection which is developed for every gas and dual fuel engine. The quality of the detection depends mainly on the position of the knock sensors and the sound characteristic of the engine.
  • Page 25 1. Mounted directly on cylinder head (best solution): Note: take care in water cooled engine because of the water jacket in cylinder head. To be sure please contact your engine manufacture. Figure 11: Knock Sensor on cylinder head ARIADNE Knock Control...
  • Page 26 The maximum deepness of the hole and the size of the screw (M8 or M6) depend on size of the cylinder head screw. Please contact the engine manufacture if the screw is stable enough. Figure 13: Power lines in a typical screw fitting ARIADNE Knock Control...

  • Page 27: Inputs And Outputs

    8 Inputs and Outputs 8 Inputs and Outputs On ARIADNE IP00 version, all inputs and outputs are wired on terminal strips. On the IP55 version, all inputs and outputs are wired over plug-in connectors. All inputs and outputs are reverse polarity proof and short circuit proof against battery posi- tive and battery negative.

  • Page 28: Outputs

    ISO 11898, Baud rate <= 1 Mbit/s, standard / extended identifier MODBUS Number of channels 1 isolated RS485 (2-wires) Baud rate <= 19200 Bps Serial interface Number of channels Usage DcDesk 2000 Baud rate up to 57600 Baud ARIADNE Knock Control...

  • Page 29: Technical Data

    - Immunity to conducted disturbances, induced by radio- frequency fields (IEC 61000-4-6:1996 + A1:2000); German version EN 61000-4-6:1996 + A1:2001  EN 13309:2000: Construction machinery - Electromagnetic compatibility of machines with internal electrical power supply  ISO 13766:1999: Earth-moving machinery - Electromagnetic compatibility ARIADNE Knock Control...

  • Page 31: Wiring Diagram

    10 Wiring Diagram 10 Wiring Diagram Fastening torque of terminal screws : 0.25 Nm ± 0.02 Nm Figure 14: ARIADNE Wiring Diagram ARIADNE Knock Control...

  • Page 33: Dimensions

    11 Dimensions 11 Dimensions Fastening torque of terminal screws : 0.25 Nm ± 0.02 Nm Figure 15: ARIADNE Dimensions ARIADNE Knock Control...

  • Page 35: Index Of Figures

    12 Index of Figures 12 Index of Figures Figure 1: ARIADNE, HEINZMANN’s Knock Control Unit ..........5   Figure 2: Normal combustion, cylinder pressure without knocking ........8   Figure 3: Uncontrolled combustion, cylinder pressure with heavy knocking ......8  ...

  • Page 37: Download Of Manuals

     e-mail or address where you want the manuals to be sent to (if different from above)  item code (as on front page, bottom right) and title of the desired manual or alternatively the technical data of your HEINZMANN equipment We would be pleased to receive your comments about the contents and presentation of our publications.

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Kc-01

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