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Extract from the Register of European Patents

EP About this file: EP4156492

EP4156492 - INVERTER SWITCHING FREQUENCY ADJUSTING METHOD, POWER ASSEMBLY SYSTEM AND ELECTRIC VEHICLE [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  24.02.2023
Database last updated on 16.11.2024
FormerThe international publication has been made
Status updated on  31.12.2021
Most recent event   Tooltip23.03.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
Huawei Digital Power Technologies Co., Ltd.
Office 01, 39th Floor, Block A
Antuoshan Headquarters Towers
33 Antuoshan 6th Road
Futian District
Shenzhen, Guangdong 518043 / CN
[2023/13]
Inventor(s)01 / WANG, Jiangang
Shenzhen, Guangdong 518129 / CN
02 / TANG, Jie
Shenzhen, Guangdong 518129 / CN
03 / LAN, Hua
Shenzhen, Guangdong 518129 / CN
04 / CHEN, Jun
Shenzhen, Guangdong 518129 / CN
05 / LI, Quanming
Shenzhen, Guangdong 518129 / CN
 [2023/13]
Representative(s)Pfenning, Meinig & Partner mbB
Patent- und Rechtsanwälte
Theresienhöhe 11a
80339 München / DE
[2023/13]
Application number, filing date21828616.927.03.2021
[2023/13]
WO2021CN83468
Priority number, dateCN20201059608624.06.2020         Original published format: CN202010596086
[2023/13]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021258799
Date:30.12.2021
Language:ZH
[2021/52]
Type: A1 Application with search report 
No.:EP4156492
Date:29.03.2023
Language:EN
[2023/13]
Search report(s)International search report - published on:CN30.12.2021
(Supplementary) European search report - dispatched on:EP09.10.2023
ClassificationIPC:H02P27/08, H02P29/68, H02M1/00, H02P29/60
[2023/45]
CPC:
H02M1/0048 (EP); H02M7/48 (CN); H02P27/06 (CN);
H02P27/085 (EP); H02P29/60 (EP); H02P29/68 (EP);
H02M1/327 (EP) (-)
Former IPC [2023/13]H02M7/48, H02P27/06
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/13]
TitleGerman:VERFAHREN ZUR EINSTELLUNG DER SCHALTFREQUENZ EINES WECHSELRICHTERS, STROMVERSORGUNGSSYSTEM UND ELEKTROFAHRZEUG[2023/13]
English:INVERTER SWITCHING FREQUENCY ADJUSTING METHOD, POWER ASSEMBLY SYSTEM AND ELECTRIC VEHICLE[2023/13]
French:PROCÉDÉ D'AJUSTEMENT DE FRÉQUENCE DE COMMUTATION D'UN ONDULEUR, SYSTÈME D'ENSEMBLE D'ALIMENTATION ET VÉHICULE ÉLECTRIQUE[2023/13]
Entry into regional phase20.12.2022Translation filed 
20.12.2022National basic fee paid 
20.12.2022Search fee paid 
20.12.2022Designation fee(s) paid 
20.12.2022Examination fee paid 
Examination procedure20.12.2022Examination requested  [2023/13]
19.02.2024Amendment by applicant (claims and/or description)
19.02.2024Date on which the examining division has become responsible
Fees paidRenewal fee
24.03.2023Renewal fee patent year 03
22.03.2024Renewal fee patent year 04
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[XI]JP2009190442  (TOYOTA MOTOR CORP) [X] 1,2,10,11 * the whole document * [I] 3-9;
 [XI]US9318991  (BENSON CHRISTOPHER PETE [US], et al) [X] 1-5,8-11 * the whole document * [I] 6,7;
 [XI]JP6080996B  (MITSUBISHI ELECTRIC CORP) [X] 1,3,5,8,10,11 * the whole document * [I] 2,4,6,7,9;
 [A]  - KARAMUK MUSTAFA, "Review of Electric Vehicle Powertrain Technologies with OEM Perspective", 2019 INTERNATIONAL AEGEAN CONFERENCE ON ELECTRICAL MACHINES AND POWER ELECTRONICS (ACEMP) & 2019 INTERNATIONAL CONFERENCE ON OPTIMIZATION OF ELECTRICAL AND ELECTRONIC EQUIPMENT (OPTIM), IEEE, (20190827), doi:10.1109/ACEMP-OPTIM44294.2019.9007175, pages 18 - 28, XP033721864 [A] 1-11 * the whole document *

DOI:   http://dx.doi.org/10.1109/ACEMP-OPTIM44294.2019.9007175
International search[A]US7084600  (SUZUKI TAMAKI [JP], et al) [A] 1-11* entire document *;
 [X]US9007013  (BAE SU HYUN [KR], et al) [X] 1-11 * description, column 3 line 45 - column 9 line 22, figures 1-6 *;
 [A]CN109756170  (HUACHEN AUTO GROUP HOLDINGS CO LTD) [A] 1-11 * entire document *;
 [A]CN109823193  (SHENZHEN FALADI ELECTRIC DRIVE CO LTD) [A] 1-11 * entire document *;
 [X]CN110138284  (SUZHOU INOVANCE AUTOMOTIVE CO LTD) [X] 1-11 * description, paragraphs [0002]-[0100], and figures 1-8 *;
 [PX]CN111884531  (HUAWEI TECH CO LTD) [PX] 1-11 * claims 1-11, description the whole document, figures 1-12 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.