Grorr Removing the power supply device, carry out the test specified in 5. Any equipment installed on engine, the vibration of which is relatively low. Type A and Type D These are the tests which assume the transient voltages generated upon load damping classified in 1 above. From this result, it was recognized that wide revisions were not required, with the achievements accomplished since the time when enacted being taken into consideration. This is a test to evaluate the resistance against the over- voltage supplied in the case mentioned above, the objective equipment to which are same as those mentioned in the paragraph 5.
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Scope This standard specifies a uniform test method in order to evaluate the performance of automotive electronic equipment hereinafter referred to as "equipment" under various environmental conditions, which use a power supply of nominal.
Classification of tests The classification of tests shall be in accordance with Table. General requirements 4. Test methods higher than 0. Where any imitated load may be employed over such specimen, should any effect be 5.
The power supply system to generate the test voltages specified in Table 2, input device s 4. Test specimen shall have been adjusted as required in accordance with the specification in 5. Input device s and loading device s. The test specimen shall be operated under the test voltage having been applied thereto, after the operation of test specimen is stabilized, output of power source micro interruption equipment shall be micro interrupted and whether any abnormity exist or not of specimen shall be confirmed and recorded.
In case where no abnormality, is found after, applying the test voltage for. Remoying the power supply device, carry out the test specified in 5. Remarks 1. Values in are reference values for the resistor power ratings. Unit : W 2. Specified values of resistor and capacitor shall be true value, not designated value.
Constants of circuit are as listed in Table 5. Test in Type B and C, test arrangement shall be so that specimen is connected to power supply device, input device and loading devices shown as in Fig. Further, should any discharge not be available in air, the discharging probe shall be contacted with the such designated portion. Measuring instrument :Calibration Oscilloscope, High-frequency volt meter, or. EMI Meter. Insulation transformer : Core shall not be saturated. A power supply device, input device s and loading device s.
Any test specimen shall be operated after the power supply device, input device and loading devices have been connected therewith, the operation of which shall be monitored by means with a proper monitoring equipment. The classifications of the equipments shall be as.
Class 2 : Equipment installed outside the vehicle, e other than class 4. Class 3 : Equipment installed inside the engine room other than class 4. Class 4 : Equipment to be installed at or near the high temperature portion or other special portion.
The of class 3 carry out according to necessary condition. Table 8 Allowable temperature difference. Then, make the temperature gradually approached to other temperature and record in like manner. The test order of setting temperature is not particularly 5. Place the test specimen-in the constant temperature chamber specified in 5.
Take the test specimen out of the chamber, remove water drops from ist surface, if any, then keep it for 2 hours or more under room temper- 18 JASO D ature, test it according to 5.
Further, the constant temperature chamber shall be so constructed that the chamber does not receive the heat radiation directly from the heat Place the test specimen in the constant temperature chamber specified in 5. Then take the test specimen out of the hours under the temperature. Take the specimen chamber, keep it for 2 hours or more under out of the chamber, remove water drops room temperature, test it according to 5.
Classification of the equipments shall be as shown in Table 7. The of class 3 carry out according to necessary conditions.
Classification of the equipments shall be as shown in Table 7 2. The of class 3 carry, out according to necessary conditions. Further, the constant temperature chamber shall be so constructed that the chamber does not receive the heat radiation directly from the heat characteristics of the equipment. Further, carry out the test pattern specified in Fig.
Take the test specimen out of the chamber and keep it for 2 hours or more under room temperature, test it according to 5. Take the test specimen out of the chamber, then keep it for 2 hours or more under room temperature, test it according to 5. Then take the test specimen out of the chamber, place it immediately in the constant temperature chamber adjusted to the high temperature specified in Table 21 JASO D 12, keep it in the chamber for the time specified in Table Regarding above operations as one cycle refer to Fig.
Then carry out the test according to 5. A power supply device, input device s and loading devices s. Keep the test specimen under the conditions for 2.
Appearance and other conditions of the test equipment at that time shall, also be confirmed. Record the characteristics of the equipment accordingly, Confirm the appearance, etc.
Confirm also the. Place the test specimen in the constant temperature and humidity chamber, raise gradually the temperature and humidity in the chamber. Subsequent operations shall be as follows: 1 After keeping the test specimen for 1.
Appearance and other conditions of the equipment at that time shall also be confirmed. Record the characteristics of the equipment accordingly. Confirm the appearance, etc. The test specimen thus moved shall then be tested as it is without any dew being wiped out, in accordance with 5.
In addition, any conditions including but not limited to the visual appearance shall also be verified. Thereafter, successively record the characteristics of the equipment, according to above mentioned 1 or 2. Confirm also the appearance, etc. The test specimen at room temperature shall be put in the low constant temperature 25 JASO D 3 Furthermore, if the characteristics immediately after the water resistance test are particularly required, carry out the test immediately according to 5.
The additional operations shall be carried out subsequent thereto as specified hereunder. The code symbol applicable to kind of the test to be performed shall be in accordance with 2. Kind of test and code symbol of JIS D Test Method 2 of JIS C or the plywood board of a thickness equal to approximately 50mm and size so large as equal to or more than 1, x 1,mm.
However, the test may be carried out by means of the method as specified hereunder. Remarks: 1. The classification of equipment shall be as follows: Class A : Any equipment installed on body or the spring of suspension system, the vibration of which is relatively low. Class B : Any equipment installed on body or the spring of suspension system, the vibration of which is relatively high.
Class C : Any equipment installed on engine, the vibration of which is relatively low. Class D : Any equipment installed under the spring of suspension system and any equipment installed on engine, the vibration of which is relatively high. Should there any resonance be available, the test shall be carried out in accordance with " 2 In case of occur in pes0nance vibration" of 5. Purpose A test to evaluate the oil resistance of the equip- ment. Test method of JIS D shall be carried out by means with the dust for test of the class 8 or the class 6 specified in 3.
Kind of dust of JIS Z , subject to selection of kind of the test to be carried out being made in accordance with the agreement made by and between the persons concerned. After the test above, the test in 5. Attached Fig. Purpose This standard aims to establish a unified test method in order to evaluate the performance of automotive electronic equipment under various environmental conditions: 2. Major portions revised and matters discussed as problem at committee meeting The revisions on this time were made based on the results of- review of testing items covering the general requirements for environment and efforts to make the format and style of this standard in better order so as to make it in accordance with JIS Z as well as the modification made as the results of comparison with the similar international standards.
Herein this paragraph, the matters in respect Of general requirements and major points of revisions on this time are explained: Any supplemental explanations of the individual items are made on the paragraph 3 hereof. From this result, it was. Recognized that wide revisions were not required, with the achievements accomplished since the time when enacted being taken into consideration.
Accordingly, the revisions on-this time were carried out mainly over the matters centered on a coordination with any other domestic and international rules relating thereto. In order to avoid a duplication of the provisions, this test was removed from this D Therefore, for the each, the general method to be applicable to electronic equipment for autom o b e h a s b e e n s p ec i f i e d a s a r e p r e sentative requirement.
From a reason that it is better to be optionally combined by user subject to the basic requirements for testing having been set out, such opinion.
Supposed that those tests are required to evaluate any reliability, only the for these items to be kept on this standard as they were. Points revised of individual provision and supplemental explanation thereof 3. This standard is desirable to be applied to motorcycles, if possible, although the environmental conditions of motorcycles are not always the same as four wheelers.
Further, the car radio, audio players and TVs may be automotive electric equipments, but they have few necessary to meet severe environmental immunity as in the case of control electronic equipments. Such devices, therefore, may be excluded from this standard, but it is desirable that the test methods specified in this standard are applied to those equipments. However, due lack of practical experiences and actual applications, it was decided not to be specified.
Because it is not favourable for the voltage from. Accordingly, from a reason that. A study had been carried out so as to obtain allowable range of the 1 Equipments which shall operate even at the time of engine starting " e.
Electronic fuel injection system, electronic ignition control system, etc. Clocks, navigation device, etc. For 12V system, two kinds of voltages, 6V class 1 and 5V class 2 , are selected as the minimum voltage V,.
JASO D001-94 PDF