JASO D General Rules of Environmental Testing Methods for Automotive Revision: Edition, ; Published Date: January ; Status: Not Active, . simulate this condition include the U.S.’s ISO pulse 1 and 3a, and Japan’s JASO D, standard type B and E. Each peak voltage for these tests is. The MPG S21 has a built-in battery switch to interrupt the DC supply voltage and is specifically designed for JASO. D, test pulses E1 and E2.
|Published (Last):||26 February 2014|
|PDF File Size:||15.58 Mb|
|ePub File Size:||15.59 Mb|
|Price:||Free* [*Free Regsitration Required]|
forum pc portable :: Jaso D 94 Pdf Download
WR 4R Maximum value of transient jjaso If the electric current of exciting circuit of the alternator becomes not to be controlled by failure jasi the alternator, generated voltage becomes higher in proportion to the rotating speed of the alternator, and the battery will be overcharged. 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 test apparatus shall consist of a capacitor C to store electrostatic energy and a discharging resistor Rd, that are integrated in a discharging probe, and shall keep the length of each grounding constants so that the reproducibility of the tests may be easily carried out. Equipment for a normal specification vehicle Class 2: O to 30A, 30Hz to 15kHz Fig. Of above mentioned transient voltages, test methods are specified in this standard for 1 through c001-94.
Therefore, for the each, the general method jaao be applicable to electronic equipment for automobile has been specified as a representative requirement. Lower the temperature inside the chamber gradC ually, d001-4 it has reached to – 30 Okeep the equipment for 1 -t 0.
Experimentally, it has been verified that under such condition, almost all the equipment has come to be dewed from the state of frost.
A transient voltage will occur when Si is turned off. The length of the grounding is desirable to keep constant within the range of 30 – 70cm. Upper portion of the instrument panel: Typical values of transient voltages under the above mentioned conditions are as follows, Load resistance: This test, d001-944, shall not be applied to the case of a chamber of O or C more.
The class 3 carry out according to necessary condition. Typical values of the former are as follows, and constants of parts of the test circuit are specified based on them: Test conditions are specified separately for Type A impressing at terminalsand Types B and C d01-94 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.
Take the test haso out jado the chamber and keep it for 2 hours or more under room temperature, test it according to 5. Removing the power supply device, carry out the test specified in 5.
I 5 2 Salt water spray test. Carry out the test pattern shown in Fig. To measure the electric field strength by installing an EM1 meter or spectrum analyzer at the location of the test specimen: Although it is desirable that the test apparatus shown in Fig.
The test results are proper to the set test conditions, and it is difficult to evaluate as normal characteristics of a specimen. The f001-94 operations shall be carried out subsequent thereto as specified hereunder.: 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.
Which conditions in the referred standard or rule to be applied was not clear. Should it be essentially required, the testing conditions condense of the dust, duration of test, etc.
The classification of equipment shall be as follows: A power supply device, input device s and loading device. The Type A and Type C shall be applied to destructive test, and the Type B shall be applied to test for mal-operation. Test apparatus and sait water. 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.
Limited to equipments of special specification vehicles under the agreement between the persons concerned where, Vi: As for the intensity of interference electromagnetic field to be impressed in the test, the numerical values of 0. As jzso the measuring devices and methods, those which are generally used for measurement jao electric field strength are used.
Regardless of this provision, this test may not be carried out subject to the test required under 5.
Raytac Module MDBT40/MDBT40-P Certified Automotive Standard JASO D001-94
Thus such equipments shall be handled as Class 3 or Class 4 equipments. Constants of circuit are as listed in Table 5. Then operate the test specimen under the same condition for 94 -t 2 hours. I btl Measureing instrument Loading Input device where, Low frequency oscillar: Since it should be equal to “C as high a long the recent trend of the ISOs standards relating to automotive parts, this trend was introduced in the parts enclosed with so as to be able to be applied, should it be essentially required.
Power supply device of V i E: 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. Values in are reference values for the resistor power ratings.
It shall be confirmed and recorded whether any abnormity is available or not. Type C and Type F: 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.
In respect of voltage application at the test in Type B and Type E, since the frequency of occurrence thereof is remarkably high as compared with the load damp subject to Type A and Type D, the opinion offered was accepted, under which it should be necessary for voltage to be applied more frequently to a considerable high extent.