1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM Do Not Use on New Programs. Being Replaced by GMW3172 EDS-T-5436 ISSUED DATE: 1999. 05. 27 REVISED DATE: 2008. 10. 21 VERSION: 3 (Superceded) EDS-T-5436THE TEST OF COMP
2、ONENTS FOR PARKING ASSIST SYSTEM PAGE: 1/14 ISSUED DATE: 1999. 05. 27 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project (incl. T255 Program). It is Superceded for all future projects and replaced by GMW3172. 1. PURPOSE This
3、standard aims at evaluating the performance of components of the parking assist system (hereinafter called “PAS”) used for automobiles. 2. SCOPE This standard applies to the test of components of PAS. 3. DEFINITION OF TERMS 3.1. PAS Abbreviation of Parking Assist System, it is a device that uses the
4、 ultrasonic sensor to sense the back of the vehicle to inform the driver of the distance between the vehicle and the obstacle in the blind spots at the rear at parking. The device is composed of the sensor module, electronic control module module (hereinafter called “ECU module”) and speaker module.
5、 3.2. Sensor module The sensor module receives operating signals from the ECU module, transmits ultrasonic signals and digitally processes the reception signals reflected from the obstacle to send them to the ECU module. 3.3. ECU module The ECU module receives the backing signals to activate the sen
6、sor module and once the obstacle is sensed generates the warning output through the speaker module. 3.4. Speaker module The speaker module delivers the module output the driver in the form of warning or alarm sound. 3.5. Warning Warning is a sound to inform the driver of the distance between the obs
7、tacle and vehicle by sound interval and consists of three different sounds: collision warning, main warning and pre warning. 3.6. Alarm Alarm consists of the sound to give warning to the driver when troubles in the system are detected after self-diagnosis and the sound to inform that the system is i
8、n operation when the reverse gear is engaged first. 3.7. Reference test obstacle The reference test obstacle is a reference object to measure the sensing performance of the BPAS system. For measurement in the horizontal sensing range, cylinders with a diameter of 75mm and length of 1000mm is used. E
9、DS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 2/14 ISSUED DATE: 1999. 05. 27 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology For measurement in the vertical sensing range, cylinders with a diameter of 70mm and length of 300mm is used. 4. TEST CONDITIONS 4.1. Stand
10、ard test voltage Test voltage used for module performance and durability test, which is specified in drawings or test specifications. 4.2. Standard test condition Unless specified otherwise, test is conducted under the normal temperature and humidity condition specified in KS A006 (Test Place Standa
11、rd Condition). 4.3. No. of samples At least 12 DVP and PVP samples shall be provided for test in principle. 5. TEST EQUIPMENT 5.1. Generals Measuring instruments used for test shall basically be calibrated by the national calibration institute and within the effective calibration period. 5.2. Thermo
12、static chamber Capable of maintaining temperature from 40 to +90, it shall have a minimum capacity of 100 liter. It shall also be able to control relative humidity at each temperature up to 95% with permissible error not exceeding +2 per temperature. 5.3. Vibration tester It shall be capable of perf
13、orming test to KS R 1034 (Automobile Components Vibration Test method). 5.4. Control device for durability test It shall be capable of automatically supply and cut-off voltage for module operation, detect defects and record progress time and no. of cycles in durability test. 5.4.1. ECU module operat
14、ion tester The module operation tester gives input signals to the ECU input terminal at test which correspond to the power supply and test function operation and senses the signals corresponding to the ECU output to permit judgment on normal operation. 5.4.2. Sensor module operation tester The senso
15、r module operation tester gives off the power supply and ultrasonic operation signals necessary for sense operation and senses the ultrasonic sensor output signals to permit judgment on normal operation. EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 3/14 ISSUED DATE: 1999. 05. 27
16、REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology 6. TEST PROCEDURES 6.1. Appearance test 6.1.1. Visual test (1) Conduct visual inspection. (2) When observed visually, each module shall show no signs of harmful flaws, cracks, or other defects that may adversely affect the performance
17、 6.1.2. Dimension test (1) Specified samples based on KS B 5203 (Vernier calipers) shall be used. Samples shall meet material requirements of the design specifications and dimensional requirements in drawings. 6.2. ECU module performance 6.2.1. Basic performance test (1) At the standard voltage, th
18、e operating characteristics of basic functions specified in drawings shall stay within the specified allowable range. (2) Test method Give to the ECU module input terminal the input signals corresponding to the test to check the operating conditions of the ECU module through the simulator. (3) Const
19、ruction of operation mode Mode Input conditions Function Output conditions System power ON All output signals low Initialize Turn on & initialize Ignition ON Self diagnosis Operation check sound Generate initialization signal TX ultrasonic sensor Generate sensor activating signals Operation 1 Revers
20、e gear ON RX ultrasonic sensor Obstacle sensing and distance calculation Input sensing signals to sensor 1 (3001200mm) Generate corresponding warning Speaker output of corresponding warning Obstacle sensing and distance calculation Input sensing signals to sensor 2 (3001200mm) Generate corresponding
21、 warning Speaker output of corresponding warning obstacle sensing and distance calculation Operation 2 Input sensing signals to sensor 3 (3001200mm) Generate corresponding warning Speaker output of corresponding warning EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 4/14 ISSUED DAT
22、E: 1999. 05. 27 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology Obstacle sensing and distance calculation (trigonometry) Input sensing signals to 2 sensors (Input data that allows trigonometry ) Generate corresponding warning Speaker output of corresponding warning Stop sensor modu
23、le operation Stop sensor activating signals Stop warning sound Stop warning Operation 3 Reverse gear OFF Stop self diagnosis Stop alarm Turn off Ignition key OFF System power off (4) Construction of test mode Perform the test cycle of Turn on (5 sec) - operation 1 (10 sec) - operation 2 (40 sec) - o
24、peration 3 (5 sec) - turn off (15 sec). (5) Construction of test equipment 6.2.2. Diagnosis function test (1) At the standard voltage, the operating characteristics of the diagnosis function specified in drawings shall stay within the specified allowable range. (2) Test method (3) Give to the ECU mo
25、dule input terminal the input signals corresponding to the test to check the operating conditions of the ECU module through the simulator. (4) Construction of operation mode Mode Input conditions Function Output conditions System power ON All output signals low Initialize Turn ON & initialize Igniti
26、on ON Self diagnosis Operation check sound Generate initialization signal Operation 1 Reverse gear ON TX ultrasonic sensor Generate sensor activating signals OPERATING SIMULATOR 4“.1-& &$6EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 5/14 ISSUED DATE: 1999. 05. 27 REVISED DATE: 20
27、08. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology RX ultrasonic sensor Self diagnosis Telltale ON, LED ON Input short-circuit signals to sensor 1 Generate corresponding alarm Speaker output of corresponding alarm Self diagnosis Telltale ON, LED ON Input short-circuit signals to sensor 2 Generate cor
28、responding alarm Speaker output of corresponding alarm Self diagnosis Telltale ON, LED ON Operation 2 Input short-circuit signals to sensor 3 Generate corresponding alarm Speaker output of corresponding alarm Stop sensor module operation Stop sensor activating signals Stop warning sound Stop warning
29、 Operation 3 Reverse gear OFF Stop self diagnosis Stop alarm Turn off Ignition key OFF System power off (4) Construction of test mode Perform the test cycle of turn on (5 sec) - operation 1 (10 sec) - operation 2 (40 sec) - operation 3 (5 sec) - turn off (15 sec) * Construction of test equipment 6.2
30、3. Operating voltage (1) The parts shall operate normally at the supply voltage of 9V 16V and each performance value shall stay within the specified allowable range. (2) Unless specified otherwise, measuring shall be conducted at least at 3 test voltages (9V, standard voltage, 16V). 6.2.4. Current
31、consumption (1) It is conducted with the standard voltage supplied. (2) Measurement shall be made separately for ignition power cables and battery power cables. OPERATING SIMULATOR 4“.1-& &$6EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 6/14 ISSUED DATE: 1999. 05. 27 REVISED DATE:
32、 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology (3) TQhe measured current shall not exceed the allowable range specified in DWG. 6.3. Sensor module performance 6.3.1. Basic performance test (1) At the standard voltage, the operating characteristics of the basic ultrasonic transmission specified
33、 in drawings shall stay within the specified allowable range. (2) Test method Give to the sensor input terminal the input signals corresponding to activation to check the power output and operating conditions of the sensor through the simulator. z Test temperature: Normal temperature and normal humi
34、dity (standard test temperature) z Test voltage : standard source voltage (4) Construction of test equipment 6.3.2. Sensing area test (1) This is to check if the sensor module normally senses the reference obstacle standing in the sensing area specified in drawings at the standard test voltage. (2)
35、Test method Determine whether the sensor component module senses the reference obstacle standing in the sensing area and meet the requirements for the component specified in drawings. z Test temperature: Normal temperature and normal humidity (standard test temperature) z Test voltage : standard sou
36、rce voltage (3) Sensing area The sensor module shall be capable of sensing the specified points in the sensing area specified in drawings. 6.3.3. Sensing distance test (1) The sensing distance at the standard test voltage shall stay within the allowable range specified in drawings. (2) Test method O
37、PERATINGSIMULATORINPUT 065165 5*.&.&“463*/(EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 7/14 ISSUED DATE: 1999. 05. 27 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology With reference obstacles placed 300mm and 1200mm away from thee sensor module respectively, che
38、ck the input and output signals of the sensor through the simulator. The result shall stay at 300 50mm and 1200 100mm respectively. z Test temperature: Normal temperature and normal humidity (standard test temperature) z Test voltage : standard source voltage (3) Construction of test equipment 6.3.4
39、 Current consumption (1) It is conducted with the standard voltage supplied. (2) Measurement shall be made separately for ignition power cables and battery power cables. (3) The measured current shall not exceed the allowable range specified in DWG. 6.4. Speaker module performance 6.4.1. Basic perf
40、ormance test (1) At the standard voltage, the operating characteristics of basic functions specified in drawings shall stay within the specified allowable range. (2) The warning sound pressure level shall meet requirements in drawings. (3) The warning sound shall contain no abnormal noise. 6.5. Elec
41、tric resistance test 6.5.1. Basic source voltage test (1) This test is to confirm if the ECU module operates normally in the operating voltage range and operating temperature range specified in drawings. (2) After the following test voltage cycle is applied to the source terminal, basic performance
42、requirements for the ECU module in clause 6.2.1 shall be met. z Test temperature: Normal temperature and normal humidity (standard test temperature) OPERATINGSIMULATORNNNNNN3&3&/$&0#45“$& EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 8/14 ISSUED DATE: 1999. 05. 27 REVISED DATE: 20
43、08. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology 6.5.2. Source voltage change test (1) This test is to confirm if the module operates normally according to the varying source voltage at engine starting. (2) After the following test voltage cycle is applied to the ignition source terminal, basic per
44、formance requirements for the ECU module in clause 6.2.1 shall be met. z Test temperature: Normal temperature and normal humidity (standard test temperature) z Test voltage: 6 12 V z Total test cycles : 10 cycles z 1 test cycle 6.5.3. Source voltage chattering test (1) This test is to confirm if the
45、 ECU module operates normally according to the varying source voltage at engine starting. 7TFDNT NTTFD 7 7DZDMF TEMP TIME7 NORMAL TEMP 7 EDS-T-5436THE TEST OF COMPONENTS FOR PARKING ASSIST SYSTEM PAGE: 9/14 ISSUED DATE: 1999. 05. 27 REVISED DATE: 2008. 10. 21 VERSION: 3 GM DAEWOO Auto & Technology (
46、2) After the following test voltage cycle is applied 10 cycles to the ignition source terminal with the ECU module sample constructed to the design specifications, basic performance requirements in clause 6.2.1 shall be met. z Test temperature : Normal temperature and normal humidity (standard test
47、temperature) z test voltage : 6 14 V z Source voltage chattering cycle (1 cycle) 6.5.4. Overvoltage/ reverse-polarity voltage (1) This test is conducted to check if the inside circuit of the ECU module is protected from overvoltage and reverse polarity voltage that may occur in the vehicle at batter
48、y discharge. (2) After the following abnormal voltage is applied, basic performance requirements in clause 6.2.1 shall be met. z Overvoltage Test voltage: 240.2V Test time : 1 minute Test temperature: Normal temperature and normal humidity (standard test temperature) z Reverse polarity voltage Test
49、voltage: -140.2V Test time: 1 minute Test temperature : Normal temperature and normal humidity (standard test temperature) 6.5.5. Short circuit When the standard test voltage is applied for 1 minute between the ground and the input and output terminals with both of them shorted, the internal circuit shall not be damaged and basic performance requirements in clause 6.2.1 shall be
