ISO INTERNATIONAL STANDARD 17559 First edition 2003-11-15 Hydraulic fluid power Electrically controlled hydraulic pumps Test methods to determine performance characteristics Transmissions hydrauliques Pompes hydrauliques a commande électrique Methodes d'essai pour déterminer les caracteristiques de fonctionnement Reference number ISO 17559:2003(E) @ ISO 2003 No reproduction or networking permited without license from IHS Not for Resale ISO17559:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe isatrademarkof AdobeSystems Incorporated. parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the @ISO2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the address below or Iso's memberbody in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2003 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO17559:2003(E) Contents Page 1 Scope 2 Normative references 3 Terms and definitions . 4 Symbols. 2 5 Test installation General requirements ... 2 5.1 General . 2 5.2 General test apparatus 4 6 General test conditions 5 6.1 Test fluid .. 5 6.2 Ambient conditions ... 5 6.3 Steady-state conditions . 5 7 Tests of steady-state performance characteristics 7.1 General 5 7.2 Flow/pressure characteristics .. 5 7.3 Characteristic test on output pressure against input pressure command signal: test procedure andpresentationoftestresults.. 7.4 Characteristic test of output flow against input flow signal - Test procedure and expression of test results 8 7.5Repeatability test .. 9 7.6 Test for change in characteristics against oil temperature .... 12 8 Tests of dynamic performance characteristics 13 8.1 General 13 8.2 Pressure compensator response and recovery .... 13 8.3 of test results ....... 14 8.4 Test of step response versus output flow Test procedure and presentation of test results . 15 8.5 Frequency response .... 16 Annex A (normative) Classes of measurement accuracy 19 Bibliography 20 nal Organizationforstandardization'ghtsreserved ili No reproduction or networking permited without license from IHS Not for Resale ISO 17559:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. Producttesting nationalOrganizationforStandardization @ ISO 2003 - All rights reserved Not for Resale ISO 17559:2003(E) Introduction This I International s Standard is intended to unify testing methods of positive-displacement electrically and Requirements for test installations, procedures and expression of results are described. V