1、 GMDAT ENGINEERING STANDARDS Test Procedures Chassis SUPERCEDED EDS-T-2618 Hydraulic Rack and Pinion Power Steering This standard may be applied only for current project (incl. 200 Series). It is Superceded for all future projects and replaced by GMW14396. 8T64 ( 6& Fp#6 D8 3D$6* Note: 8 E:48t G8 =9
2、 (200 SeriesE F ) 7 FF7 957%L+ , FG P-P Program .Bd# GMW14396) $4=F7 957F$ . Copyright 2010 General Motors Company All Rights Reserved November 2010 Originating Department: GMDAT Engineering Standards Page 1 of 6 Version : 5 1 Introduction Note: Nothing in this standard supersedes applicable laws an
3、d regulations. Note: In the event of conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. The purpose of this standard is to improve the reproducibility & reliability of the test by regulating the test procedure of the performance & strength of th
4、e hydraulic rack and pinion power steering system for a vehicle. 1.2 Applicability. This standard is applied to the test on the performance & strength of the hydraulic rack and pinion power system alone. 2 References Note: Only the latest approved standards are applicable unless otherwise specified.
5、 2.1 External Standards/Specifications. None. 2.2 GM Standards/Specifications. None. 3 Test Equipment 3.1 Pressure Meter (200 Kgf/cm2) 3.2 Flow Meter. 3.3 RPM-Meter. 3.4 X-Y Recorder. 3.5 Mess Cylinder (1000 ml). 3.6 Steering Angle/Force Meter. 3.7 Power Steering Pump Performance Tester. 4 Number of
6、 Test Samples For approval purpose test specimens at least 3, for routine quality control at least 1 test sample are to be tested. 1 P7 :0 : ., E:48 6&F !7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18 88x 7 , F6* 72T8p) F$ . 1.1 +95 . ., E:48t 37=7 8T64 ( 6& Fp#6 D8 3D$6* 43B8 2e#0 I$4G 907 38%P E:48x
7、 957F$ . 2.1 17 E:4 / . F$-1F 68 . 2.2 GM E:4 / . F$-1F 68 . 3 4G 8? 3.1 6)Y (200 Kgf/cm2) 3.2 8T( . 3.3 G983L ?U9Id . 3.4 X-Y d) . 3.5 +34*$ (1000ml). 3.6 3D$6* 5$ /BA ?U9I8? . 3.7 8T( /6)Y /G988x 9P6F 3L 8# 8? . 4 4G E 3L( 4G E8 3L(8t 38 4G 47# 3P 818p) F , 9Id E:B 4G 47# 1P 818p) F$ . GMDAT ENGIN
8、EERING STANDARDS EDS-T-2618 Copyright 2010 General Motors All Company Rights Reserved November 2010 Page 2 of 6 Version : 5 5 Performance Test Procedure 5.1 Pinion Torque Test. 5.1.1 Flux. Execute the test without the power steering oil. (Remove the oil in the gear as well). 5.1.2 Rotational Speed.
9、102 RPM 5.1.3 Install the rack and pinion shaft in a way of making it move freely in the state of removing the boots at both ends of the power steering gear and record the torque-angle characteristic line after adjusting the adjustable plug to the drawing specification. 5.1.4 The test specification
10、& evaluation shall follow the drawing rules by vehicle. 5. 2e# 4G 9 (Output Port)72P #88T%L# 68x ?U9IF$ . 5.3.5 4G -C D4# =9- $+ 9I7 &d*$ . GMDAT ENGINEERING STANDARDS EDS-T-2618 Copyright 2010 General Motors All Company Rights Reserved November 2010 Page 4 of 6 Version : 5 5.4 External Oil Leakage.
11、 5.4.1 Flux. 6.060.10 L/min. 5.4.2 Power Steering Oil Temperature. 383 E . 5.4.3 Relief Pressure. 10.30.5 MPa. 5.4.4 Measure the possible oil leakage from the internal power steering gear to the external gear and amount of it in the state of reaching the relief pressure by turning the pinion shaft t
12、o the left after installing the rack bar in the middle of the gear and fixing the both ends of it to prevent it from moving. 5.4.5 The test specification & evaluation shall follow the drawing rules by vehicle. 6 Strength Test Procedure 6.1 Hand Wheel Torque Test. 6.1.1 Test load. 919.1 Nm. 6.1.2 Flu
13、x. 8.000.75 L/min. 6.1.3 Relief Pressure. 7.650.35 MPa 6.1.4 Put the test load on the rack bar at the end of the gear after moving to the right from the middle of the gear and move it to the center of the gear. Then, put the test load on the rack bar at the end of the gear after moving to the left a
14、nd return to the center. Execute the performance test after the test ends. 6.1.5 The test specification & evaluation shall follow the drawing rules by vehicle. 5.4 7. #88T . 5.4.1 8T( . 6.060.10 L/min. 5.4.2 D8 3D$6* 7X8 7$ . 383 E . 5.4.3 *F8 6)Y . 10.30.5 MPa. 5.4.4 (-H (Rack Bar)# d68 :E4 7 88?F$
15、) 8?F , (-H4 7:8: 6$) !$8x 9IF G 9?U8p) Fp#6 2F8C* G984P *F8 6)Y7 $ F 1B72P D8 3D$6* d6 !.72P 7.) #88T%L#: 7 .7t 68x ?U9IF$ . 5.4.5 4G -C D4# =9- $+ 9I7 &d*$ . 6 I$ 4G 9 4G . 6.2.1 8T( . 8.000.75 L/min. 6.2.2 D8 3D$6* 7X8 7$ . 383 E 6.2.3 *F8 6)Y . 7.650.35 MPa. 6.2.4 (-H# d68 :E4 7 88?4A , 8)Y (Inp
16、ut Shaft)8t $+7 9I%P 7x88x J$) $+ 9I:8 3D$6* HT8x BF 2F$ . 6.2.5 4G F:E8t =9- $+7 9I%P F:E8x 957F+ , $+7 9I%L: 68t 7 G3L# 97?U-F7 $4F7 5 4G) 9IF$ . 6.2.6 8t 0.05) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 5 NOV 2010 Superceded (Chassis Subsystem Validation Team) / F9I957 =* (24 .E D4D4 )
