JASO D001 PDF

Scope This sta. JASO D JASO M JASO D JASO D e1. General rules of environmental testing methods for automotive electronic equipment 1.

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JASO D e1. JASO D JASO M JASO D However, voltages that are induced and impressed by transient voltages and electro-magnetic disturbances are not included. Classification of tests The classification of tests shall be in accordance with Table.

General requirements 4. Definitions Definitions of major terms used in this standard are as follows : 1 Automotive electronic equipment The general term for electronic device and system including electriclelectronic sensors, control units or computers , displays, audio-visual devices, etc.

Ammeter The accuracy shall be in class equal to or higher than 0. Voltmeter The accuracy shall be in class equal to or higher than 0. Power supply device Power source supply device from which required DC power is stably available battery and any other similar equipment, the internal impedance of which is so low as same as the battery , the supplied voltage is variable within a range from 8 to 38V, the voltage fluctuation of the power supplied is f within a range of k 0.

Input device Device, its performance is equivalent to the signal generating equipment such as sensors employed on the actual vehicle in connection with the test specimen, but not limited to such sensors. Loading device Device, its performance is equivalent to the passive equipment such as actuators employed on the actual vehicle in connection with the test specimen but not limited to such actuators.

Where any imitated load may be employed over such specimen, should any effect be directly given to the result of testing. Test methods 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.

Should any abnormality be detected, the duration of time when the voltage has been kept applied and the conditions thereat shall be recorded. In case where no abnormality is found after applying the test voltage for 60 minutes, record it and the test may be stopped.

Removing the power supply device, carry out the test specified in 5. Connect the input and loading device to the test speciment so that the equipment may operate during the test; connect the assembly to the test apparatus specified in 5. Remarks 1. A transient voltage will occur when Si is turned off. 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. JAS0 D?? I Type B 1 sec or more I. 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. It shall be confirmed and recorded whether any abnormity is available or not.

Further, should any discharge not be available in air, the discharging probe shall be contacted with the such designated portion. I btl Measureing instrument Loading Input device where, Low frequency oscillar : 30Hz to 50Knz : 50W or greater with output impedance equal to, or less than, 2.

A power supply device, input device s and loading device. 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.

This test, however, shall not be applied to the case of a chamber of O or C more. The classifications of the equipments shall be as follows: Class 1 : Equipment installed in the vehicle compartment and the trunk room, other than class 4. Class 2 : Equipment installed outside the vehicle 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 class 3 carry out according to necessary condition. Make the temperature in the chamber gradually approached to a setting temperature specified in Table 7; and when the temperature has reached to the setting temperature, keep the specimen under the temperature during 1 I0.

Then, make the temperature gradually approached to other temperature and record in like manner. The test order of setting temperature is not particularly specified. Lower the temperature gradually, when the temperature has reached to - 30 O C , keep the equipment for 1 f 0. Further, operate the test specimen for 70 f 2 hours under the temperature. Take the specimen out of the chamber, remove water drops from its surface, if any, then keep it for 2 hours or more under room temperature, 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 source of the test specimen, however, shall not be applied to the case of a chamber of O or C more.

Then take the test specimen out of the chamber, keep it for 2 hours or more under 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. Further, the constant temperature chamber shall be so constructed that the chamber does not receive the heat radiation directly from the heat source of the test specimen. Further, operate the test specimen for k 2 hours under the specified temperature. Take the test specimen out of the chamber, then keep it for 2 hours or more under room temperature, test it according to 5.

Lower the temperature inside the chamber gradC ually, when it has reached to - 30 O , keep the equipment for 1 -t 0. 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. Regarding above operations as one cycle refer to Fig. Then carry out the test according to 5. JASO D possible. Test apparatus. A power supply device, input device s and loading devices s.

Keep C the test specimen under the conditions for 2. Carry out the test pattern shown in Fig. Subsequent operations shall be as follows: I After keeping the test specimen for 1.

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. Thereafter, successively record the characteristics of the equipment, according to above mentioned 1 or 2. Confirm also the appearance, etc. Place the test specimen in the constant temperature and humidity chamber, raise gradually the temperature and humidity in the chamber.

Then operate the test specimen under the same condition for 94 -t 2 hours. Subsequent operations shall be as follows: 1 After keeping the test specimen for 1. Appearance and other conditions o the f equipment at that time shall also be confirmed.

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. Appearance and other conditions of the equipment at that time shall also be confirmed. Following two kinds of constant temperature chamber; 1 Low constand temperature chamber The inside temperature can be controlled so as to be kept at temperature within a range Of - 5 I 2 " C.

Thereafter, successively record the characteristics of the equipment, according to above mentioned 1 or Confirm also 2. I 5 2 Salt water spray test. Test apparatus and sait water. The additional operations shall be carried out subsequent thereto as specified hereunder.

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 6 :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 pesonance vibration" of 5.

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. Note 1 All resistance Purpose This standard aims to establish a unified test method in order to evaluate the performance of automotive electronic equipment under various environmental conditions.

Major portions revised and matters discussed as problem at committee meeting 2 Testing items removed 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 2 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.

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