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1. WO2021035474 - METHOD FOR CONTROLLING CURRENT DISTRIBUTION, CONTROL DEVICE FOR RUNNING SAID METHOD AND CURRENT SHARING SYSTEM


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/CN2019/102572 PCT190213JM
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
26 August 2019
Applicant
GUANGXI LIUGONG MACHINERY CO., LTD.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
METHOD FOR CONTROLLING CURRENT DISRIBUTION, CONTROL DEVICE FOR RUNNING SAID METHOD AND CURRENT SHARING SYSTEM

5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

A method for controlling a current distribution between multiple electric motor

devices (M1, M2)  in a current sharing system(100) of an electrically driven 

construction machine, a control device which is configured to run said method and a current sharing system(100) for an electrically driven construction machine. The 

method comprising the steps of: estimating a first current demand  for a first

electric motor device (M1) powered by a battery system and estimating a second 

current demand for a second electric motor device(M2) powered by the battery 

system; determining an available amount of current available in the current 

sharing system(100); splitting the available amount of current into a first portion  for driving the first electric motor device (M1) and a second portion  for 

driving the second electric motor device(M2), wherein the splitting is based on the 

estimations of the first current demand  and the second current demand. 


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     2    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     B60L; 15/20(2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     B60L
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
CNPAT,CNKI,WPI,EPODOC: current, distribution, electric motor, shar+, first, second, demand, power, battery, split+

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
CN 107303827 A (HYUNDAI MOTOR COMPANY) 31 October 2017 (2017-10-31)
1-7,12-15
description, paragraphs[0007]-[0022], and figures 1-3
(2)
A
US 2017174098 A1 (GENERAL ELECTRIC COMPANY) 22 June 2017 (2017-06-22)
1-15
the whole document
(3)
A
US 2009212725 A1 (WALLNER, STEFAN) 27 August 2009 (2009-08-27)
1-15
the whole document
(4)
A
US 2008169137 A1 (E-TRACTION EUROPE B.V.) 17 July 2008 (2008-07-17)
1-15
the whole document
(5)
A
US 2011001442 A1 (LEE, CHONG UK ET AL.) 06 January 2011 (2011-01-06)
1-15
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
CN 107303827 A
31 October 2017
KR 20170119349 A
KR 101856317 B1
US 2017297439 A1
US 10137791 B2
27 October 2017
10 May 2018
19 October 2017
27 November 2018
US 2017174098 A1
22 June 2017
JP 6334147 B2
US 2014152225 A1
JP 2018139488 A
US 2017366112 A1
EP 2738036 A3
JP 2014147280 A
EP 2738036 A2
US 9800182 B2
JP 2018139489 A
US 10291158 B2
CN 103847530 B
CN 103847530 A
US 10374529 B2
US 2019288616 A1
30 May 2018
05 June 2014
06 September 2018
21 December 2017
20 January 2016
14 August 2014
04 June 2014
24 October 2017
06 September 2018
14 May 2019
12 April 2017
11 June 2014
06 August 2019
19 September 2019
US 2009212725 A1
27 August 2009
CA 2604025 C
AT 423035 T
EP 1868837 A1
JP 4746673 B2
CA 2604025 A1
DE 502006002883 D1
DE 102005016300 A1
ES 2323730 T3
WO 2006105986 A1
PL 1868837 T3
JP 2008535468 A
US 8076883 B2
EP 1868837 B1
29 January 2013
15 March 2009
26 December 2007
10 August 2011
12 October 2006
02 April 2009
12 October 2006
23 July 2009
12 October 2006
30 September 2009
28 August 2008
13 December 2011
18 February 2009
US 2008169137 A1
17 July 2008
US 2012004800 A1
EP 1800378 B8
US 2011100737 A1
EP 1800378 A1
PL 1800378 T3
US 9533582 B2
NL 1026910 C2
ES 2390138 T3
WO 2006022546 A1
EP 1800378 B1
05 January 2012
21 January 2015
05 May 2011
27 June 2007
31 December 2012
03 January 2017
28 February 2006
07 November 2012
02 March 2006
25 July 2012
US 2011001442 A1
06 January 2011
WO 2011002482 A1
06 January 2011
Name and mailing address of the ISA/:
National Intellectual Property Administration, PRC
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
13 May 2020
Date of mailing of the international search report:
28 May 2020
Authorized officer:
BAI,Lushuang
Telephone No. 86-(10)53961390
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