1、 SURFACE VEHICLE STANDARD Performance Test for Air-Conditioned, Heated, and Ventilated Off-Road, Self-Propelled Work Machines 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 entir
2、ely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, 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 invite
3、s your written comments and suggestions. Copyright 2004 SAE International 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 wri
4、tten permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.org Issued 1998-07 Revised 2004-09 Superseding J1503 JAN1998 J1503 REV. SEP2004 Foreword This SAE Standa
5、rd outlines a test procedure for off-road, self-propelled work machines providing a uniform measurement of the operator environmental temperature provided by a complete air-handling system operating in a specified ambient environment; and establishes minimum performance levels for the operator enclo
6、sures heating, ventilating, and air-conditioning system 1. Scope This SAE Standard applies to off-road, self-propelled work machines used in earth moving, agriculture, and forestry as defined in SAE J1116, and establishes the following minimum performance levels in the operators environment for the
7、seated position: 1.1 Minimum operator enclosure pressurization and ventilating levels in the operators environment for the seated position. 1.2 Maximum operator environment temperature under air conditioning operation. 1.3 Minimum operator environment temperature under heating operation. 2. Referenc
8、es 2.1 Applicable Publications The following publications form a part of the specification to the extent specified herein. Unless otherwise indicated the latest revision of SAE publications shall apply. SAE J1503 Revised SEP2004 - 2 - 2.1.1 SAE PUBLICATIONS Available from SAE, 400 Commonwealth Drive
9、, Warrendale, PA 15096-0001. SAE J1012Operator Station Pressurization System Test Procedure SAE J1091Earthmoving MachineryOperators Field of View SAE J1116Categories of Off-Road Self-Propelled Work Machines SAE J1163Determining Seat Index Point SAE J1349Engine Power Test Code SAE J1533Operator Enclo
10、sure Air Filter Element Test Procedure SAE J1559Measurement of Solar Heating Effect 2.1.2 ISO PUBLICATIONS Available from ANSI, 25 West 43rd Street, New York, NY 10036-8002. ISO 5006-1Earth-moving machineryOperators field of view ISO 5353Earth-moving machinery, and tractors and machinery for agricul
11、ture and forestrySeat index point ISO 5721Tractors for agricultureOperators field of vision ISO 9249Earth-moving machineryEngine test codeNet power 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this document. 2.2.1 ASHRA
12、E PUBLICATIONS Available from 17191 Tullie Circle NE, Atlanta, GA 30329-2305. ASHRAE Temperature Measurement 4166 ASHRAE Handbook of Fundamentals, 1981 2.2.2 ASME PUBLICATIONS Available from ASME, 345 East 47th Street, New York, NY 10017-2330. ASME Power Test Code, Pressure Measurement, PTC 19.21972
13、 ASME Power Test Code, Electrical Measurement, PTC 19.61955 2.2.3 ISO PUBLICATIONS Available from ISO, 25 West 43rd Street, New York, NY 10036-8002. ISO 10263-4Earth moving machineryOperator enclosure environmentPart 4: Operator enclosure ventilating, heating and/or air-conditioning test method ISO
14、14269-2Tractors and self propelled machines for agriculture and forestryOperator enclosure environment. SAE J1503 Revised SEP2004 - 3 - 3. Definitions 3.1 Air-Handling System Any system that moves air within the operator enclosure. The air source and system components may be within and/or outside th
15、e operator enclosure and may contain the air in some manner as part of their function. 3.2 Operator Environment The space surrounding the operator as defined by the temperature measurement locations described in Figure 1. 3.3 Air-Conditioning System Any system which lowers the effective temperature
16、of the air within the operator environment. 3.4 Heating System Any system which raises the effective temperature of the air within the operators environment. 3.5 Ventilating System Any system which provides outside air to, and maintains air circulation within, the operators environment. 3.6 Operator
17、 Enclosure The part of the machine which forms a boundary between the space surrounding the operator and the outside environment. This boundary shall comprise of components such as the glass, roof, and floor which completely surround the operator. This boundary effectively eliminates free passage of
18、 air, dust, or other substances into the area around the operator. SAE J1503 Revised SEP2004 - 4 - FIGURE 1TEMPERATURE AND VELOCITY LOCATIONS (DIMENSIONS IN mm) SAE J1503 Revised SEP2004 - 5 - 4. Test Equipment and Instrumentation 4.1 A test enclosure sufficiently large to contain the base machine w
19、ith provisions to circulate conditioned air and to load the machines engine and transmission if required. 4.1.1 Field test conditions may be used. 4.1.2 If it is not practical to test the base machine due to physical size limitations, the operator enclosure may be bench tested with the loads imposed
20、 by the base machine on the enclosure simulated. When bench testing is conducted in conjunction with solar loading, shading of the cab similar to that which is encountered on the vehicle in field conditions is permitted. If this procedure is used, correlation with field data shall be established. 4.
21、2 Devices to Measure Dry Bulb Temperature Measuring accuracy within 0.5 C of observed values. 4.3 Devices to Obtain Wet Bulb Temperature Measuring accuracy within 0.5 C of observed values. 4.4 Devices to Measure Operator Enclosure Pressurization Measuring accuracy within 5% of observed values. 4.5 D
22、evices to Measure RPM Measuring accuracy within 2% of observed values. 4.6 Devices to Measure Air Velocity Measuring accuracy within 0.5 m/s. 4.7 Stopwatch of Other Timing Device 5. Measurement Locations See Figure 1. The locations of the temperature and velocity measurement points are based on the
23、seat index point, described in SAE J1163. 5.1 The ambient air temperature shall be measured at a location where the ambient air is not affected by the machine and at a height equivalent to the air intake height on the operator enclosure. 5.2 The operator enclosure pressurization shall be measured ac
24、cording to SAE J1012. 5.3 Dry bulb temperatures shall be measured as close as practical to positions 1 through 6 in Figure 1. SAE J1503 Revised SEP2004 - 6 - NOTEIf an alternative operator station position is available (for example, a reversible operator station), the alternate positions should also
25、 be tested with a comparable array of temperature measurement positions. 5.4 It is recommended that the air velocity be measured at the eye point (per SAE J1091) as shown in position 7 in Figure 1. NOTEIf an alternative operator station position is available (for example, a reversible operator stati
26、on), the alternate positions should also be tested with a comparable eye point position. 6. Performance Levels Common to Air-Conditioning, Heating, and/or Ventilating Systems 6.1 The operator enclosure should be capable of maintaining a minimum pressurization of 50 Pa throughout the test, as outline
27、d in SAE J1012. Maximum pressurization should not exceed 200 Pa. 6.2 Under all conditions of air conditioning, heating, or ventilating, a minimum of 43 m3/h of filtered outside air should be provided. 6.3 At the conclusion of the heating, ventilating or air-conditioning tests, the temperatures measu
28、red (locations 1-6, see Figure 1) in the operators environment shall not vary more than 5 C. 6.4 Filtered outside air should be passed through a filter that is a minimum of 96% efficient using fine test dust and test method specified in SAE J1533. 6.5 It is recommended that a means be provided to li
29、mit the maximum air velocity at position 7 in Figure 1 to 0.3 m/s. Adjustable diffusers may be used to redirect air. 6.6 Test conditions shall be maintained throughout the duration of the test. 6.7 Maximum air velocity passing the machine from front to rear: 5 m/s. 7. Common Test Procedures 7.1 The
30、test conditions specified in 8.1, 9.1, and 10.1 shall be maintained throughout the duration of the respective test. 7.2 Record enclosure pressures, in pascals. 7.2.1 The pressure measuring device shall be positioned to avoid velocity head by keeping its reference and measuring points away from air s
31、treams. 7.3 Record the temperatures as described in 5.3 at intervals not greater than 5 min. 7.4 The operator enclosure dry bulb temperatures from locations 1-6 shall be averaged for each reading interval. SAE J1503 Revised SEP2004 - 7 - 7.5 The test shall be considered terminated when either of the
32、 following conditions are fulfilled. 7.5.1 The minimum temperature recorded in 7.3 does not vary more than 0.5 C in 15 min. 7.5.2 The test has run for 1 h. 7.6 An operator may be in the enclosure throughout the duration of the test. 8. Air-Conditioning Performance Test 8.1 Test Conditions 8.1.1 The
33、air-conditioning system shall be tested in the intended production configuration, adjusted within the manufacturers specifications. 8.1.2 The ambient conditions for moderate temperature and high humidity shall be: 8.1.2.1 Minimum dry bulb temperature, 38 C. 8.1.2.2 Minimum moisture content of 0.018
34、kg H2O per kg of dry air. 8.1.3 MACHINE LOAD AND SPEED When the environment within the operator enclosure is influenced by engine or component temperatures (such as transmission), the machine shall be operated at rated engine speed in a mode which will provide at least 50% of the maximum rated net e
35、ngine power determined in accordance with SAE J1349 or these conditions shall be simulated as referenced in 4.1.2. Loading of engine through the transmission is recommended. 8.1.4 Prior to conducting tests on the air-conditioning system, the machine shall be operated as specified in 8.1.3 for at lea
36、st 1 h with the air-conditioning system not in use, to provide a stabilizing heat soak period. Stabilization is defined by a temperature change of less than 0.5 C for 10 minutes in the engine and transmission oil sumps. During this period, ambient temperature shall be as specified in 8.1.2. 8.1.5 Th
37、e air-conditioning system controls shall be set according to the manufacturers specifications or to provide maximum cooling performance. The requirements specified in Section 6 shall be maintained throughout the test. 8.1.6 It is recommended that solar loading be applied in accordance with SAE J1559
38、. The loading shall be applied in one of the following time periods: a. If the machine or operator enclosure is heat soaked using the engine as defined in 8.1.4, the solar loading is to start at the beginning of the air conditioning tests. (Solar loading before the air-conditioning tests is allowabl
39、e.) b. If the machine or operator enclosure is not heat soaked as defined in 8.1.4, the solar loading is to begin a minimum of 1 h prior to conducting the air conditioning tests. Doors and windows shall be closed. During this period, ambient temperature shall be as specified in 8.1.2. SAE J1503 Revi
40、sed SEP2004 - 8 - 8.2 Minimum Air-Conditioning Performance The air-conditioning system shall be capable of reducing the operator environment temperature to 25 C dry bulb or lower. 9. Heater Performance Test 9.1 Test Conditions 9.1.1 The heating system shall be tested in the intended production confi
41、guration, adjusted within the manufacturers specifications. 9.1.2 The maximum ambient temperature for the heating system test shall be 15 C. 9.1.3 Before carrying out the tests, the machine shall be cold soaked for a minimum of 10 h at the temperature specified in 9.1.2. No external oil or coolant h
42、eating source shall be used during the cold soak. 9.1.4 The machine shall be operated in accordance with manufacturers recommended warm-up procedure, then rated speed under a maximum load of no more than 20% of the maximum rated net engine power, net engine power shall be determined in accordance wi
43、th SAE J1349 or these conditions shall be simulated as referenced in 4.1.2. 9.1.5 The heating system controls shall be set in accordance with the manufacturers instructions or be adjusted to provide maximum operator enclosure pressurization. 9.2 Minimum Heater Performance The heating system shall be
44、 capable of increasing the operator environment temperature to 25 C dry bulb or greater. 10. Ventilating Test 10.1 Test Conditions 10.1.1 The ventilating system shall be tested in the intended production configuration, adjusted within the manufacturers specifications. 10.1.2 The ambient conditions f
45、or the ventilating test shall be a minimum outside dry bulb temperature of 27 C. 10.1.3 The machine shall be operated in accordance with the manufacturers recommended warm-up procedure, and then runat the rated speed under a maximum load of no more than 20% of the maximum rated net engine power, as
46、determined in accordance with SAE J1349 or these conditions shall be simulated as referenced in 4.1.2. 10.1.4 The ventilating system controls shall be adjusted to the maximum position with maximum operator enclosure pressurization. SAE J1503 Revised SEP2004 - 9 - 10.2 Minimum Ventilating Performance
47、 The minimum ventilating performance requirements shall be as indicated in Section 6.1. 11. Test Report The test report shall include the following information: a. model and serial number of machine tested; b. ambient conditions outside the operator enclosure (i.e., dry bulb temperature, moisture co
48、ntent (kg H2O per kg dry air), and air velocity); c. operator enclosure pressurization (Pa); d. average dry bulb temperature in the operator enclosure at the end of the test (C); e. operator environment temperature uniformity; f. volume of outside filtered air provided; g. solar radiant energy level
49、s as measured in accordance with SAE J1559. In addition, the optional test conditions shall be recorded when they are used. An example of a suitable test report form is given in Appendix A. 12. Notes 12.1 Marginal Indicia The change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revision shave been made to the previous 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 HUMAN FACTORS TECHNI
