SAE J 823-1994 Flasher Test Standard《闪光测试》.pdf

《SAE J 823-1994 Flasher Test Standard《闪光测试》.pdf》由会员分享，可在线阅读，更多相关《SAE J 823-1994 Flasher Test Standard《闪光测试》.pdf（5页珍藏版）》请在麦多课文档分享上搜索。

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 entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro

2、m, 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.QUESTIONS REGARDING THIS DOCUMENT: (412) 772-8512 FAX: (412) 776-0243TO PLACE A DOCUMENT

3、 ORDER; (412) 776-4970 FAX: (412) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1994 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ823RE

4、V.JAN94Issued 1962-04Revised 1994-01Superseding J823 JUN91FLASHER TESTForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. ScopeThis SAE Standard specifies the test procedure, test circuitry, and instruments required formeasuring the performa

5、nce of flashers used in motor vehicles.2. ReferencesThere are no referenced publications specified herein.3. Laboratory FacilitiesThe laboratory shall be equipped with all of the facilities required to make the tests inthis document, in accordance with established laboratory practice, including the

6、following:3.1 Ambient ConditionsMeans shall be provided to maintain ambient temperatures over the range from 32 to63 C within the tolerances specified for each test condition, in an air atmosphere.3.2 Power SupplyPerformance TestsThe power supply for testing performance requirements shall notgenerat

7、e any adverse transients not present in motor vehicles and shall comply with the followingspecifications:3.2.1 OUTPUT VOLTAGECapable of supplying to the input terminals of the standard circuit 11 to 16 V DC for 12 Vflashers or 5.5 to 8 V DC for 6 V flashers or 22 to 32 V DC for 24 V flashers.3.2.2 O

8、UTPUT CURRENTCapable of supplying required design current(s) continuously and inrush currents asrequired by the design bulb load complement.3.2.3 REGULATION3.2.3.1 DynamicThe output voltage shall not deviate more than 1.0 V from 0 to maximum load (including inrushcurrent) and shall recover within th

9、e area generated by the equation 1.0 V(1-et/T), T = 100 s. The curveshall end at the maximum voltage deviation allowed for static regulation (see Figure 1).3.2.3.2 StaticThe output voltage shall not deviate more than 2% with changes in static load from 0 to maximum(not including inrush current) nor

10、for static line voltage variations.3.2.4 RIPPLE VOLTAGEMaximum 75 mV, peak to peak, from 0 to maximum design bulb load.SAE J823 Revised JAN94-2-FIGURE 1POWER SUPPLYMAXIMUM DYNAMIC REGULATION CURVE3.3 Power SupplyDurability TestsThe power supply for the durability test requirements shall not generate

11、any adverse transients not present in motor vehicles and shall comply with the following specifications:3.3.1 OUTPUT VOLTAGECapable of supplying, as required, 14 and 13 V (7 and 6.5 V DC or 28 and 26 V),according to the flasher rating, to the input terminals of the standard test circuits shown in Fi

12、gures 2 and 3.FIGURE 2STANDARD TEST CIRCUITTURN SIGNAL AND HAZARD WARNING FLASHERSSAE J823 Revised JAN94-3-FIGURE 3STANDARD TEST CIRCUITWARNING LAMP ALTERNATING FLASHERS3.3.2 OUTPUT CURRENTCapable of supplying a continuous output current of the design load for one flasher timesthe number of flashers

13、 and inrush currents as required by the bulb load complement.3.3.3 REGULATION3.3.3.1 DynamicThe output voltage shall not deviate more than 1.0 V from 0 to maximum load (including inrushcurrent) and shall recover within the area generated by the equation 1.0 V(1-et/T), T = 5 ms. The curveshall end at

14、 the maximum voltage deviation allowed for static regulation (see Figure 1).3.3.3.2 StaticThe output voltage shall not deviate more than 2% with changes in static load for 0 to maximum(not including inrush current), and means shall be provided to compensate for static line voltage variations.3.3.4 R

15、IPPLE VOLTAGEMaximum 300 mV, peak to peak, from 0 to maximum design bulb load for one flashertimes the number of flashers.4. Test Procedures4.1 The flashers shall be mounted as specified by the manufacturer if special precautions are required.4.2 The flashers shall be connected in a standard test ci

16、rcuit as shown in Figure 2 for turn signal and hazardwarning flashers or Figure 3 for warning lamp alternating flashers using the design load(s) within 0.5% at12.8V (6.4 V or 25.6 V) specified by the flasher manufacturer.4.3 A suitable high impedance measuring device connected to points X-Y in Figur

17、e 2, or to points X-Y1 and topoints X-Y2 in Figure 3 shall be used for measuring flash rate, percent current “on“ time, starting time, andvoltage drop across the flasher. The measurement of these quantities shall not affect the circuit.4.4 The resistance at A-B for each load circuit in Figure 2 or F

18、igure 3 shall be measured with flasher and bulb loadsat each shorted out with removable shunt resistances not to exceed 0.005 each.SAE J823 Revised JAN94-4-The effective series resistance in the total circuit (Figure 2) or in each of the parallel circuits (Figure 3) betweenthe power supply and bulb

19、sockets (excluding the flasher and bulb loads by using the removable shuntresistances) shall be 0.10 0.01 .4.5 The effective 0.10 0.01 series resistance from A to B shall be distributed along the circuit wiring so thatthe sum of the voltage drops between A to X and between B and a flasher ground ter

20、minal, if required, shall notexceed 2.0 V when 12.8 V (or 6.4 V or 25.6 V) is applied to a load that is equal to 110% of the flasher maximumrating.4.6 Adjust the voltage at the bulbs to 12.8 V (6.4 V or 25.6 V) as required for testing at C-D in Figure 2 or C-D andE-F in Figure 3 with the flasher sho

21、rted out by an effective shunt resistance not to exceed 0.005 . The loadcurrent shall be held to the rated value for the total flasher design load(s) within 0.5% at 12.8 V (6.4 V or 25.6V) by simultaneously adjusting trimmer resistors, R.4.7 For testing fixed load flashers at other required voltages

22、, adjust the power supply to provide required voltagesat required temperatures at C-D in Figure 2 or C-D and E-F in Figure 3 without readjustment of trimmingresistors, R.4.8 For testing variable load flashers, the circuit shall be first adjusted at 12.8 V (6.4 V or 25.6 V) at C-D in Figure 2or C-D a

23、nd E-F in Figure 3 with a minimum required bulb load and the power supply shall be adjusted toprovide other required test voltages at required temperatures at C-D in Figure 2 or C-D and E-F in Figure 3without readjustment of trimming resistors, R (each required test voltage shall be set with a minim

24、um bulb loadin place). The required voltage tests with a maximum bulb load shall be conducted without readjusting eachcorresponding power supply voltage previous set with minimum bulb load.5. Notes5.1 Marginal IndiciaThe change bar (l) located in the left margin is for the convenience of the user in

25、 locatingareas where technical revisions have been made to the previous issue of the report. An (R) symbol to the leftof the document title indicates a complete revision of the report.PREPARED AND APPROVED BY THE SAE FLASHER TASK FORCE; APPROVED BY THE SAE LIGHTING COORDINATING COMMITTEE AND THE SAE

26、 AUXILIARY DEVICES STANDARDS COMMITTEESAE J823 Revised JAN94RationaleThe performance test and durability test results on flashers having maximum load ratings of 10 ormore 32 cp lamps can be significantly affected by how and where the 0.10 circuit resistance ispositioned.4.5 provides a measure of con

27、trol on the distribution of the circuit resistance thereby minimizingperformance test and durability test result differences when a lot of flashers are subjected to testing ondifferent pieces of test equipment.4.5 Circuit Resistance CalculationsExample #1Determine the maximum 12.8 V flasher load cur

28、rent when the circuit resistance between A to X andbetween B and a flasher terminal equals 0.10 .NOTE8 #1156 lamps + 2 #1895 pilots =8 x 2.1 A + 2 x 0.27 A x 0.93 =16.8 A + 0.50 A = 17.3 AExample #2Determine the circuit resistance permitted between A to X and between B and a flasher terminal fora 12

29、.8 V flasher having a maximum load rating of 10 #1156 lamps and 2 #1895 pilots.10 x 2.1 A + 2 x 0.27 A x 0.93 =21.0 A + 0.50 A = 21.5 A21.5 A x 110% = 23.7 ARelationship of SAE Standard to ISO StandardNot applicable.ApplicationThis SAE Standard specifies the test procedure, test circuitry, and instr

30、uments required formeasuring the performance of flashers used in motor vehicles.Reference SectionNot Applicable.Developed by the SAE Flasher Task Force; Approved by the SAE Lighting Coordinating Committee and the SAE Auxiliary Devices Standards CommitteeMax. flasher current2.0V0.10- 110% 18.1A=2.0V23.7A- 0.084=