1、 GMDAT ENGINEERING STANDARDS Test Procedures Chassis SUPERCEDED EDS-T-2714 2-Axis Simulation Test of RHS for 4 Point Engine Mount This standard may be applied only for current project (incl. 200 Series). It is Superceded for all future projects and replaced by GMW14116. 49D : 7: *7C8 RHS 2 4G 98 88x
2、 7 , F6* 72T8p) F$ . 1.1 +95 . 4 9D : 7: *7C8 RHS 7 $4F Fp)! 2e8 :8x +958p) F$ . 1.2 957 -88 . Proving Ground 8 4= :0F48 F:E$8Bd* ?U9IF7 Durability Schedule7 8F Bracket-Engine MTG, RHS & Bracket-Reaction, Upper & Engine Mount-RHS & Rod A-Reaction, Upper * “=( 98G -F ” 0 “=( 1F -F ”8 4Gl* 87F7 LAB 72
3、P 8G8F7 , Fp) ! * :F$ . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . F$-1F 68 . 2.2 GM E:4 / . F$-1F 68 3 4G 8/x 3.1 8T6 DF8 . 3.2 8T6 7?878Bd . Q 2P8 8T6 7?878Bd4 Fx7F+ 168t $80 M$ . y 84F:E8 -884 25 KN8 $4 l8 -G(8 125 mm8 7?878Bd 2P 3.3 MTS18 Component RPC4 2X?%P D3“D
4、FBd 1$4 . 3.4 4G E0 8G8F8 F# 5 -F8 F:E8x 84F 3L 8# 8/x* :F 3L 8# Jig/Fixture. GMDAT ENGINEERING STANDARDS EDS-T-2714 Copyright 2010 General Motors All Company Rights Reserved December 2010 Page 2 of 6 Version : 3 4 Test Procedures Conduct calibration so that the load cell and displacement transduce
5、r of the hydraulic actuator will indicate the correct value. Mount the test sample to the test jig as shown in Figure 1. Fasten the bolts and nuts, which are to be the ones used in the vehicle, to the tightening torque specified in the drawing. For the load signal to simulate, perform iteration of t
6、he desired signal using the CRPC to get the final drive signal for each road. For the number of repetition for each road used in the vehicle durability test on the proving ground, apply the drive signal for each road pattern to the actuator. It is desirable to apply signals according to the driving
7、sequence in the vehicle durability test. When such is not available, test shall be so conducted that signals are applied at random as long as possible. During test, check each portion for presence of cracks, excessive play, permanent deformation and loosening of bolts and nuts through visual inspect
8、ion and with white spray paint. 4 4G - 8T6 678Bd8 )&2t -C -884 9IGF F8x :4F 3L 8$) ?*/)9 % 7 4Gl* 6#$ . F8*/ ,(7& (P.G)72P 4=! 4G 4 17%L# 5 $)- -L.) G3L$4) 5 $) DBh7 $4F % 7 4Gl* 678Bd (Actuator)7 84 F$ . 8& , 4#F+ 4= ! 4G :E :0FF# 3P2P$4) 84F# 8 98p! 7 8? 68x 7 $4F ,h888) 84 %L$) 4G 8x :FF$ . 4G $:
9、E 8U6| 4=d -C H1 3F8) 4G Desired File8t -$8 -e68?) 948F7 .(4F$ . 5.2 Road Load Data8 Proving Ground9 . 5.2.1 Mira Proving Ground. 5.2.1.1 $)- 4G G3L (CARDURA 1). 5 $)- 4Gl&7 $4F 9 %4Gl* 8Bd)Q -L.)3L 1 LOCK TO LOCK * 6 384 2 FIG 8 * 2 640 3 TEST HILL * 1 128 4 LONG WAVE PITCH : 1 PASS 128 5 PAVE LEG
10、2 & 3 128 6 KERB ISLAND : 1 PASS 80 7 POSTEL ROAD : 1 PASS 64 8 RIVER BED : 1 PASS 512 9 CORRUGATION : 1 PASS 768 10 CHUCK HOLE : 1 PASS 1024 11 LADDER RACK : 1 PASS 128 12 R & H (OUTER) : 1 PASS 512 13 R & H (INNER) : 1 PASS 512 14 STONE ROA ( 1 PASS) 256 5.2.1.2 Number of Tests by Road (CARDURA 2)
11、 Get the final drive signal for each road through iteration and apply vibration to the sequence and no of repetition shown in Table 2. 5.2.1.2 $)- 4G G3L (CARDURA 2). 5 $)- 4Gl&7 $4F 9 %4Gl* 8Bd)Q -L.)3L 1 SIMULATED CITY 2000 2 R & H ACW 3500 GMDAT ENGINEERING STANDARDS EDS-T-2714 Copyright 2010 Ge
12、neral Motors All Company Rights Reserved December 2010 Page 4 of 6 Version : 3 No / 3P Name of Road / $) + Number of Tests / Q -L.)3L 3 STONE ROAD 1500 4 TWIN STRAIGHT 750 5 TEST HILL AREA * 1(1PASS) 750 6 R & H CW 3500 7 NO2. CIRCUIT 48-80 500 8 NO2. CIRCUIT 80-128 500 9 GEAR BOX CYCLING 6250 10 HI
13、GH SPEED CYCLE 625 5.2.2 Millbrook Proving Ground. 5.2.2.1 Number of Tests by Road (General DURA 74K). Get the final drive signal for each road through iteration and apply vibration to the sequence and no of repetition shown in Table 3. 5.2.2 Millbrook Proving Ground. 5.2.2.1 $)- 4G G3L (General DUR
14、A 74K). 5 $)- 4Gl&7 $4F 9 %4Gl* 8Bd)Q -L.)3L 1 HIGH SPEED 1003 2 CITY SIMULATION 10000 3 HANDLING CIRCUIT 746 4 TWIST HUMPS 2160 5 GRAVEL ROAD 4520 6 BODY TWIST 13 2100 7 HILL ROUTE 1100 8 SPECIAL SURFACES 1448 9 MAX POT HOLE RH 1 10 MAX POT HOLE LH 1 11 BODY TWIST 16 350 12 PAVE 1043 13 BRAKING 8 1
15、4 POT HOLE (8K) 720 15 POT HOLE (40K) 720 16 STEERING PAD 18 17 ACCESS ROAD 1 GMDAT ENGINEERING STANDARDS EDS-T-2714 Copyright 2010 General Motors All Company Rights Reserved December 2010 Page 5 of 6 Version : 3 5.2.2.2 Number of Tests by Road (CARDURA 2). Get the final drive signal for each road t
16、hrough iteration and apply vibration to the sequence and no of repetition shown in Table 4. 5.2.2.2 $)- 4G G3L (CARDURA 2). 5 $)- 4Gl&7 $4F 9 %4Gl* 8Bd)Q -L.)3L 1 HIGH SPEED 502 2 CITY SIMULATION 4500 3 HANDLING CIRCUIT 746 4 TWIST HUMPS 2160 5 GRAVEL ROAD 3780 6 BODY TWIST 13 2100 7 HILL ROUTE 1520
17、 8 SPECIAL SURFACES 1448 9 MAX POT HOLE RH 1 10 MAX POT HOLE LH 1 11 BODY TWIST 16 350 12 PAVE 1043 13 BRAKING 8 14 POT HOLE (8K) 720 15 POT HOLE (40K) 720 16 STEERING PAD 18 17 ACCESS ROAD 1 6 Handling of Test Results After completion of the test according to the above procedures, the sample shall
18、show no signs of cracks, wear and tearing of rubber parts and loosening of bolts/nuts. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: EDS-T-2714 6 4G 08 =* 1d 9) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 3 DEC 2010 Superceded (Chassis Subsystem Validation Team) / F9I957 =* (24 .E D4D4 )
