| Presentation | 1996/6/25 International Trend and Technical Problems on EMC to Vehicles [1] : Fundamental Defects or CISPR 12 Recommendation and Solutions Proposed Shigekazu SHIBUYA, Akinori KAMESHIMA, Haruo ISHIZUKA, Juiti KAKU, Koujirou UNNO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Although the test distance in the EMC measurement under the latest recommendation is ten (10) m, the CISPR's Durban Conference (December 1995) have reached an agreement to accept an optional use of the measurement distance of 3 m because the correlation coefficient of 10 dB may be insured referring to actual data, i.e., 5-10 dB obtained in Germany, Japan and so on, and it has been decided that such agreement be included in the fourth version (Autumn, 1996) of CISPR 12. Such decision, however, is very problematic. The correlation coefficient may take -5 to +30 dB depending on polarization, frequency and type of road surface. Therefore, if it is assumed as 10 dB for all cases, occurrence of a larger error in the measurement may be inevitable. The main concern in the method of measurement by the recommendation was at the ignition noise, consequently it can hardly be applicable to the so-called high-tech car or electric car which equips with recently developed electronic control devices, navigator and soon. In other words, acceptance and its subsequent standardization of the revised recommendation seem to be very risky in view of international non-tariff barrier or product liability. This paper points out such technical defects gives proof and proposes a solution. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | vehicle / EMC / test site / correlation factor / disturbance limit / freespace |
| Paper # | EMCJ96-16 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 1996/6/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | International Trend and Technical Problems on EMC to Vehicles [1] : Fundamental Defects or CISPR 12 Recommendation and Solutions Proposed |
| Sub Title (in English) | |
| Keyword(1) | vehicle |
| Keyword(2) | EMC |
| Keyword(3) | test site |
| Keyword(4) | correlation factor |
| Keyword(5) | disturbance limit |
| Keyword(6) | freespace |
| 1st Author's Name | Shigekazu SHIBUYA |
| 1st Author's Affiliation | System Consultant SHIBUYA's Office() |
| 2nd Author's Name | Akinori KAMESHIMA |
| 2nd Author's Affiliation | KAMESHlMA Consultant Office |
| 3rd Author's Name | Haruo ISHIZUKA |
| 3rd Author's Affiliation | ISHIZUKA Radio Engineering Consultant Office |
| 4th Author's Name | Juiti KAKU |
| 4th Author's Affiliation | Colory Co., Ltd. |
| 5th Author's Name | Koujirou UNNO |
| 5th Author's Affiliation | Colory Co., Ltd. |
| Date | 1996/6/25 |
| Paper # | EMCJ96-16 |
| Volume (vol) | vol.96 |
| Number (no) | 135 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |