JASO D001 PDF


JASO D – JAPANESE AUTOMOBILE STANDARD JAS0 D General rules of environmental testi. Buy JASO D Electrical Equipment – General Rules Of Environmental Testing Methods For Automotive Electronic Equipment from SAI Global. Find the most up-to-date version of JASO D at Engineering

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Power supply device Power source supply device from which required DC power is stably available battery and any jasl similar equipment, the internal impedance of which is so low as same r001 the batterythe 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. The class 3 carry out according to necessary condition.

Output impedance 2 R or less, output 50W or grater Ammeter: Specified values of resistor and capacitor shall be true value, not designated value.

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. Should so wide range of difference of temperatures be specified, it would be regarded as a kind of thermal shock test. Record the characteristics of the equipment accordingly. Progressed with a great variety of electronic devices in recent years, such equipments have increased that give and receive information with drivers through switches, keyboards or visual displays.

Foregoing results are, however, obtained on bench assembled tests, and it was confirmed that only the lower transient voltage would occur on vehicle tests as compared with bench tests.

Typical values of transient voltages under the above mentioned conditions are as follows, based on test results accumulated by the companies concerned, constants of parts of the test circuit are specified based on them: Results of the study on charged electrostatic voltages of line workers of the automobile manufacturer in winter Fig. Removing the power supply device, carry out the test specified in 5.

The test conditions are specified through practical measurements of the transient voltage of each inductive load, and relatively large transient voltages among these measurements are given as typical values. Therefore, to the applicable testing conditions, the ISOs recent standards in respect of electric and electronic equipment for automobile were referred.

The additional operations shall be carried out subsequent thereto as specified hereunder.: A power supply switching device is fitted in the test circuit as shown by S1 in Fig. B-1 is a test against the transient voltage discharged jasi the field coil to the loading side when the ignition switch is opened in the 12V system. Where any imitated c001 may be employed over such specimen, should any effect be directly given to the result of testing.

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However, the test may be carried out by means of the method as d0001 hereunder.: S001 impedance stabilization network LEN: For the latter, however, the conducted electromagnetic test method given in 5.

JASO D 94 datasheet & applicatoin notes – Datasheet Archive

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. The method for natural drop to be alternatively employed was specified so as to be simply applied, where a little bit more severe condition than what is expected at usual handling was specified.

Since under such condition, the generation o transient f voltage is limited to be kept so low that the test condition be made more relaxed, the resistance has been decided to be specified so to be directly connected with the power source and the test specimen.

Appearance and other conditions o the f equipment at that time shall also be confirmed. I After keeping the test specimen for 1.

Example of electric field strength a Example of electric field strength measurement near transmission station Frequencyband Long wave Frequency MHz 0. Test conditions are specified separately for Type A impressing at terminalsand Types B and C impressing at operating portion according to the difference of the conditions the equipment is handled in use or the happening of the equipment with electrostatic discharge.

It would be difficult to get test gear. Then operate the test specimen under the same condition for 94 -t 2 hours. Examples o f measurement of distribution of electric field strength in TEM cell 1 Location of the test reference measuring device 2 Location of the test reference measuring device is varied in horizontal direction is varied in vertical direction al 90mm e 7 7 b3: Should any abnormality be detected, the duration of time when the voltage has been kept applied and the conditions thereat shall be recorded.

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. Points revised o individual provision and f supplemental explanation thereof 3.

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Any supplemental explanations of the individual items are made on the paragraph 3 hereof. From the results above mentioned, this electromagnetic resisting characteristics test using TEM cell is useful as a test method to evaluate the operation of jsao electronic equipment unit under specific condition of lead wire connection, but conducted electromagnetic test that examine the effects of connecting lead wire, wiring, etc.

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Even C equipments installed jawo the vehicle room are subject to severe temperature conditions if they are so located as exposed to direct rays of sunshine when the vehicle is parked at a high temperature ares. Logarithmic conical spiral Transmitting antenna: Accordingly, from a reason that those test d00 may be optionally applied after selection by user, d00 by case, it was concluded for these items to be kept on this standard as thev were. Transmitting antenna hood with absorption material An aluminum, Metal shield cylinder and end plate with 3.

Typical values of the former are as follows, and constants of parts of the test circuit are specified based on them: When establishing the provision for the standard, only open circuit was assumed, because the duration of transient voltage tends to prolong significantly when the ignition circuit is opened as compared with the case where the circuit is closed.

Raytac Module MDBT40/MDBT40-P Certified Automotive Standard JASO D001-94

Limits between 29 and 59 volts per meter are still very difficult to test unless the sample is small and parallel plates could be used. The test shall be carried out for following equipments: Monitoring device for frequency and high frequency voitage Monitor: Moreover, in case of the equipment in 24V system, two different kinds of the testing circuits on which the voltage shall be applied for a duration of time so long as equal to 60 times shall be constructed, subject to the voltage condition being same as it of 5.

Regarding above operations as one cycle refer to Fig. Further, carry out the test pattern specified in Fig. Type C and Type F: Frequency of repetition Fig. Keep C the test specimen under the conditions for 2. In addition, in respect of the allowable range of temperatures, it was unified so as to be equal to k 2 O as high in accordance with the C relating international standard, after the performance available from the existing constant temperature chamber in the market having been investigated.

Herein this paragraph, the matters in respect of general requirements and major points of revisions on this time are explained.