1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication m
3、ay 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. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org J915 REV. OCT2007 SURFACE VEHICLE RECOMMENDED PRACTICE Issued 1965-07 Revised 2007-10 Superseding J915 NOV2000 Automatic TransmissionsManual Control Sequence RATIONALE Document updated to current standards. 1. SCOPE
5、The scope and purpose of this SAE Recommended Practice is to provide a standard pattern or sequence for the manual control of automatic transmissions in passenger cars and light-duty trucks. This generally refers to left hand drive mechanical shift applications. 2. REFERENCES 2.1 Applicable Publicat
6、ions The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest version of SAE publications shall apply. 2.1.1 FMVSS Publications Available from the Superintendent of Documents, U.S. Government Printing Office, Mail Stop: SSOP,
7、 Washington, DC 20402-9320. FMVSS 102 Transmission Shift Lever Sequence, Starter Interlock, and Trans Braking Effect FMVSS 114 Theft Protection 3. CONTROL SEQUENCE The general pattern or sequence shall comply with FMVSS 102. Examples include: P R N D L or PRND * Where the P represents Park, R Revers
8、e, N Neutral, D the highest forward gear range attainable, and L the lowest forward gear range attainable. Positions “D“ through “L“, and any intermediate positions within that range, represent the “manually selectable“ automatic forward ranges, if applicable. Some applications may only provide a “D
9、“ position as the only selectable forward range. The graphics describing the forward gears may vary. * Must include availability of lower gear range; see Section 11. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without licens
10、e from IHS-,-,-SAE J915 Revised OCT2007 - 2 - 4. STEERING COLUMN-MOUNTED CONTROL The sequence will start from the most counterclockwise position. The park position shall be located as shown in Section 3 when provided; however, inclusion of such a position is optional. 4.1 For detecting the positions
11、 by feel and for safety, a stepped gate shall be provided, such that the control lever must be raised in a direction parallel to the axis of the steering column in order to engage certain of the manual positions. While a definite gating pattern is not specified, a preferred one is as follows: neutra
12、l and drive on one plane; raise the lever to obtain either reverse or lower forward ranges; and if a park position is included in shifting reverse to park, a further rise with park being a latched position. 5. FLOOR OR INSTRUMENT PANEL MOUNTED CONTROL For a floor mounted system, the sequence will st
13、art with park being the forwardmost position. In an instrument panel-mounted system, the sequence will begin with park being the uppermost, or leftmost position. 5.1 Adequate gating as mentioned under “Steering Column-Mounted Control” is to be provided. A lever with a button release for entering rev
14、erse, park, and/or lower forward ranges is a desirable feature. If included, park must be a latched position. 6. ADDITIONAL OVERDRIVE CONTROL ARRANGEMENT For automatic transmissions utilizing overdrive control in addition to the manual control lever, the switch shall be located on the manual lever o
15、r at an easily visible, ergonomically designed dash or console-mounted location. 7. INHIBITORS For multiple-speed automatic transmissions, the inhibiting of lower ranges is recommended above vehicle speeds which would cause engine overspeed. An inhibitor for reverse is recommended, although it is co
16、nsidered optional. 7.1 If park position is engaged with the vehicle moving, the mechanism must ratchet or not engage until a low (non-zero) vehicle speed is attained. 8. NEUTRAL START SWITCH A switch in series with the starter circuit is to be provided which will allow the engine to be started only
17、in the Park (if included) or neutral positions. 9. BRAKE INTERLOCK The brake pedal must be applied before the manual lever can be moved out of the park position. 10. KEY REMOVAL For vehicles with Park and an inserted key, the ignition key can not be removed unless the manual lever is in the park pos
18、ition, as required per FMVSS 114. 11. MANUAL GEAR SELECTION Manual On/Off and Gear up “+” and Gear Down “” to be located on the manual lever or at an easily visible ergonomically designed dash, console mounted, or steering wheel location. Copyright SAE International Provided by IHS under license wit
19、h SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J915 Revised OCT2007 - 3 - 12. NOTES 12.1 Marginal Indicia The change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions have been made to the pr
20、evious issue of the report. An (R) symbol to the left of the document title indicates a complete revision of the report. PREPARED BY THE SAE AUTOMATIC TRANSMISSION AND TRANSAXLE TECHNICAL STANDARDS COMMITTEE Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
