400 Commonwealth Drive, Warrendale, PA 15096-0001 U.S.A. Tel: (724) 776-4841 Fax: (724) 776-5760 Web: www.sae.org 2005-01-0555 On Automatic Transmission Integrated TCM with Contact Less Position Sensor Naoto Ogasawara, Takao Taniguchi, Kazumasa Tsukamoto, Kenji Suzuki, Yuuji Hattori, Naotaka Murakami and Hiroshi Maruyama Aisin AW Co., Ltd. Reprinted From: Systems Engineering, Electronics Simu lation, Advanced Electronics Packaging, and Electro magnetic Compatibility (SP-1926) 2005 SAE World Congress Detroit, Michigan April 11-14, 2005 SAE TECHNICAL PAPER SERIESDownloaded from SAE International by Univ of California Berkeley, Tuesday, July 31, 2018The Engineering Meetings Board has approved this paper for publication. It has successfully completed SAE’s peer review process under the supervision of the session organizer. This process requires a minimum of three (3) reviews by industry experts. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,without the prior written permission of SAE. For permission and licensing requests contact: SAE Permissions 400 Commonwealth DriveWarrendale, PA 15096-0001-USAEmail: [email protected]: 724-772-4028Fax: 724-772-4891 For multiple print copies contact: SAE Customer ServiceTel: 877-606-7323 (inside USA and Canada)Tel: 724-776-4970 (outside USA)Fax: 724-776-1615Email: Customer [email protected] ISSN 0148-7191Copyright © 2005 SAE International Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. A process is available by which discussions will be printed with the pap er if it is publishe d in SAE Transactions. Persons wishing to submit papers to be considered for presentation or publication by SAE should send themanuscript or a 300 word abstract to Secretary, Engineering Meetings Board, SAE. Printed in USADownloaded from SAE International by Univ of California Berkeley, Tuesday, July 31, 20181ABSTRACT AISIN AW has developed a new transmission control module (hereinafter referred to as “TCM”), which can be applied to the world wide FWD 6-speed automatic transmission (hereinafter referred to as “A/T”). This newly developed TCM can contribute to the whole vehicle system as it is integrated to mechanical A/T in the meaning of ‘hardware’, and completed and ensured the functions in the A/T system. This TCM allows us to greatly reduce the number of the wire harness and the connector, and the space for installing TCM, which are required for the conventional style: A/T and TCM are separately installed, so that it can contribute to fuel economy, weight saving, utilization of the space in the engine room and cost reduction. Our Integrated TCM on A/T integrates the functions with the conventional neutral safety switch (hereinafter referred to as “N.S.S/W”) for detecting shift position, so that it allows compact installation to the limited space on A/T. Also, we have tried to ensure miniaturization and improvement of the durability for detecting shift position by replacing the conventional me chanical contact type N.S.S/W with the contact less position sensor. This TCM ensures the high reliability under the severe condition of direct installation on A/T by introducing the ceramic multilayer board, integrating the interface circuit exclusively for A/T, and applying the chip size package technology to the micro controller and IC. INTRODUCTION Every vehicle system has become more advanced and more multifunctional in order to improve fuel efficiency, to reduce exhaust emissions and to improve safety, and accordingly the number of ECU (hereinafter referred to as “Electrical Control Unit”) controlling each system tends to be increased. Our ideal figure of the vehicle system is as shown in Fig.1.The current style requ