UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`Paper No. 1
`
`ZHONGSHAN BROAD OCEAN MOTOR CO., LTD.; BROAD OCEAN
`
`MOTOR LLC; AND BROAD OCEAN TECHNOLOGIES, LLC
`
`Petitioner
`
`NIDEC MOTOR CORPORATION
`
`Patent Owner
`
`Patent 7,626,349
`
`TITLE: LOW NOISE HEATING, VENTILATING AND/OR AIR
`
`CONDITIONING (HVAC) SYSTEMS
`
`FILED: FEBRUARY 1, 2007
`
`INVENTOR(S): MARCINKIEWICS ET AL.
`
`ISSUED: DECEMBER 1, 2009
`
`PETITION FOR INTER PARTES REVIEW OF US. PATENT NO. 7,626,349
`UNDER 35 U.S.C. § 312
`
`
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`Paper No. 1
`
`ZHONGSHAN BROAD OCEAN MOTOR CO., LTD.; BROAD OCEAN
`
`MOTOR LLC; AND BROAD OCEAN TECHNOLOGIES, LLC
`
`Petitioner
`
`NIDEC MOTOR CORPORATION
`
`Patent Owner
`
`Patent 7,626,349
`
`TITLE: LOW NOISE HEATING, VENTILATING AND/OR AIR
`
`CONDITIONING (HVAC) SYSTEMS
`
`FILED: FEBRUARY 1, 2007
`
`INVENTOR(S): MARCINKIEWICS ET AL.
`
`ISSUED: DECEMBER 1, 2009
`
`PETITION FOR INTER PARTES REVIEW OF US. PATENT NO. 7,626,349
`UNDER 35 U.S.C. § 312
`
`
`
`Petitioner’s Exhibit List
`
`Exhibit No.
`
`
`Description
`
`1001
`
`U.S. Patent No. 7,626,349
`
`
`
`
`
`
`
`1002
`
`Excerpts from the Prosecution History of Application 11/701,350,
`which issued as the ‘349 Patent
`
`1003
`
`Japanese Patent Publication JP 2003-348885 (“Hideji”)
`
`1004
`
`English Abstract of Hideji
`
`
`
`
`
`
`
`
`1005
`
`English translation of Hideji
`
`1006
`
`U.S. Patent 5,410,230 to Bessler, et a1. (“Bessler”)
`
`1007
`
`1008
`
`“Electronic Control of Torque Ripple in Brushless Motors” by Peter
`Franz Kocybik (“Kocybik”)
`
`Excerpts from Paul C. Krause et a1, Analysis of Electric Machinery
`and Drive Systems (2nd ed. 2002) (“Krause”)
`
`1009
`
`Expert Declaration of Dr. Mark Ehsani
`
`1010
`
`
`
`Complaint filed in Nidec Motor Corporation v. Broad Ocean Motor
`LLC et 611., Civil Action No. 4: 13-CV—01895-JCH (E. D. Mo.).
`
`
`
`
`
`
`
`40738939,]
`
`
`
`I.
`
`INTRODUCTION
`
`Pursuant to 35 U.S.C. § 312 and 37 CPR. § 42.100 et seq., Zhongshan
`
`Broad Ocean Motor Co., Ltd., Broad Ocean Motor LLC, and Broad Ocean
`
`Technologies, LLC (collectively, “Petitioner”) request
`
`inter partes review of
`
`claims 1, 2, 3, 8, 9, 12, 16, and 19 (the “Challenged Claims”) of US. Patent No.
`
`7,626,349 (“the ’349 Patent,” Ex. 1001), which issued on December 1, 2009. The
`
`Board is authorized to deduct all required fees associated with this petition from
`
`Fulbright & Jaworski Deposit Account No. 06-2380, under Order No. 1 1405494.
`
`The ‘349 Patent is generally directed to systems and methods for heating,
`
`ventilating and/or heating (“HVAC”)
`
`systems with a permanent magnet
`
`synchronous motor (“PM Motor”) that drives a fan or blower. More specifically,
`
`the PM Motor drive of the ‘349 Patent uses sine wave commutation and
`
`independent q- and d-axis currents to create continuous currents in the PM Motor’s
`
`windings.
`
`As demonstrated by various references discussed below and the declaration
`
`of Professor Mark Ehsani, long before the ‘349 Patent’s priority date, PM Motors
`
`using sine wave commutation and vector control (q- and d-axis currents) were well
`
`understood, developed, and used in a variety of industries, including HVAC. As
`
`40738939.]
`
`
`
`such, there is a reasonable likelihood that Petitioner will prevail on at least one of
`
`the challenged claims.
`
`11. MANDATORY NOTICES
`
`A.
`
`Real Party in Interest (37 C.F.R. § 42.8(b)(1))
`
`Zhongshan Broad Ocean Motor Co., Ltd, Broad Ocean Motor LLC, and
`
`Broad Ocean Technologies, LLC are the real parties-in-interest.
`
`B.
`
`Related Matters (37 C.F.R. § 42.8(b)(2)) "
`
`The following matter may affect, or be affected by, a decision in this
`
`proceeding: Nidec Motor Corporation v. Broad Ocean Motor LLC et 611., Civil
`
`Action No. 4: l3-CV-01895-JCH (E. D. M0.) (the “Litigation”).
`
`C.
`
`Lead and Back-Up Counsel (37 C.F.R. § 42.8(b)(3))
`
`Lead counsel: Nathan J. Rees (Reg. No. 63,820)
`
`Back-up counsel: Daniel A. Prati (Reg. No. 65,869)
`
`D.
`
`Service Information (37 C.F.R. § 42.8(b)(4))
`
`Email: nate.rees@nortonrosefulbright.com
`
`Post: Nathan J. Rees, Fulbright & Jaworski L.L.P., 2200 Ross Avenue,
`
`Suite 2800, Dallas, TX 75201
`
`Phone: 214.855.7164
`
`Fax: 214.855.8200
`
`Petitioner consents to electronic service.
`
`407389391
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`
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`III. GROUNDS FOR STANDING
`
`Pursuant to 37 C.F.R. § 42.104(a), Petitioner certifies that the ‘349 Patent is
`
`available for inter partes review, and that Petitioner is not barred or estopped from
`
`requesting an inter partes review challenging the Challenged Claims on the
`
`grounds identified in this Petition. The ‘349 Patent has not been subject to a
`
`previous proceeding of the AIA that results in estoppel and the complaint served
`
`on Petitioner in the Litigation was served within the last 12 months.
`
`IV.
`
`STATEMENT OF PRECISE RELIEF REQUESTED FOR EACH
`CLAIM CHALLENGED
`
`A.
`
`Claims for Which Review is Requested (37 C.F.R. § 42.104(b)(1))
`
`Petitioner requests review and invalidation of claims 1—3, 8—9, 12, 16, and 19
`
`of the ‘349 Patent.
`
`B.
`
`Statutory Grounds of Challenge (37 C.F.R. § 42.104( b)(2))
`
`For the reasons presented below, Petitioner seeks the following relief:
`
`Ground 1: Invalidation of claims 1-3, 8-9, 12, 16, and 19 under 35 U.S.C. §
`
`102(b) based on Japanese Patent Publication JP 2003-348885 to Hideji (“Hideji”)
`
`(Ex. 1003). Hideji published in Japan on December 5, 2003, and is therefore prior
`
`art to the ‘349 Patent (whose priority date is February 1, 2007) at least under 35
`
`U.S.C. § 102(b).
`
`40738939. 1
`
`
`
`Ground 2: Invalidation of claims 1-3, 8-9, 12, 16, and 19 under 35 U.S.C. §
`
`103(a) based on U.S. Patent 5,410,230 (Ex. 1004) to Bessler (“Bessler”) in View of
`
`Kocybik (Ex. 1005). Bessler issued as a U.S. patent on April 25, 1995, and is
`
`therefore prior art to the ‘349 Patent at least under 35 U.S.C. § 102(b). Kocybik
`
`published in the U.S. on July 2000, and is therefore prior art to the ‘349 Patent at
`
`least under 35 U.S.C. § 102(b).
`
`V.
`
`REASONS FOR THE RELIEF REQUESTED UNDER 37 C.F.R. §§
`42.22(a)(2) AND 42.104(b)(4)
`
`A.
`
`Background
`
`1.
`
`Declaration Evidence
`
`This Petition is supported by the declaration of Professor Mark Ehsani from
`
`Texas A&M University.
`
`(Ex. 1009). Dr. Ehsani offers his opinion with respect to
`
`the content and state of the prior art and the understanding of a person having
`
`ordinary skill in the art.
`
`Dr. Ehsani holds BS and MS degrees in electrical engineering from the
`
`University of Texas at Austin and a Ph.D.
`
`in Electrical Engineering from the
`
`University of Wisconsin-Madison. He is currently a tenured Professor in the
`
`Department of Electrical and Computer Engineering and the director of the Power
`
`Electronics and Motor Drives Laboratory and Advanced Vehicle Systems Research
`
`Program at Texas A&M University.
`40738939. I
`
`
`
`Dr. Ehsani has published over 370 papers in refereed conferences, and
`
`journals in the areas of energy systems, power electronics, motor drives, and
`
`electric and hybrid electric vehicles, and other areas of control, storage, and use of
`
`electric power and energy systems. He is also the co-author of 17 books on the
`
`above topics. During his over 33 years of employment at Texas A&M, Dr. Ehsani
`
`has originated and taught over eight different undergraduate and graduate electrical
`
`engineering courses on a variety of topics including power electronics, motor
`
`drives, dc power systems, electric and hybrid electric vehicles, sustainable energy
`
`and transportation systems, and industrial practice of electrical and computer
`
`engineering. Directly relevant to the ‘349 Patent, Dr. Ehsani first taught a class at
`
`Texas A&M University that covered vector control (using independent q— and d-
`
`axis currents) and sine wave commutation with PM Motor drives in 1985. See Ex.
`
`1009,1111.
`
`2.
`
`Prior Art Technology
`
`As evidenced by Dr. Ehsani’s declaration and the prior art references
`
`discussed below, by the ‘349’s 2007 priority date, motor controls for permanent
`
`magnet motors were well developed, understood and used in a variety of
`
`applications. See Ex. 1009, 10. For example, a textbook by Dr. Krause, Analysis
`
`of Electric Machinery and Drive Systems (2nd ed. 2002) (“Krause”) (Ex. 1008)
`40738939. I
`
`-5-
`
`
`
`includes many equations
`
`and descriptions
`
`that describe the control
`
`and
`
`performance of permanent magnet motors.
`
`The ‘349 Patent includes the concept of vector control, which uses a rotating
`
`frame of reference and separates the current (and flux) provided to control the
`
`motor into a quadrature axis (“q-axis”) and a direct axis (“d—axis” . As explained
`
`in more detail the declaration of Dr. Ehsani, the use of vector control provides an
`
`analytical tool to control a permanent magnet motor to produce a commanded
`
`amount of torque or speed. See Ex. 1009, 1111 12-17. The ‘349 Patent also includes
`
`the concept of sine wave commutation, which relates to the waveforms of the
`
`currents that are fed to a PM Motor—they are sine waves, rather than square
`
`waves.
`
`Hideji (charted below) discloses an HVAC system that uses a PM Motor that
`
`uses vector control and sine wave commutation. Bessler (also charted below)
`
`discloses an HVAC system that uses a PM Motor. To the extent that Bessler does
`
`not disclose vector control or sine wave commutation, it would have been obvious
`
`to use well—known motor control concepts, which are disclosed in Kocybik, with
`
`the PM Motors of Bessler. Therefore, the ‘349 claims are directed to teachings
`
`that were within the knowledge of one of ordinary skill in the art at the time of the
`
`invention and there is a reasonable likelihood that Petitioner will prevail on at least
`40738939.l
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`-6-
`
`
`
`one of the challenged claims. A more detailed application of the prior art to the
`
`challenged claims is provided below in Section C.
`
`3.
`
`Prosecution History
`
`The ‘349 Patent was filed with 20 claims of which 3 were independent. Ex.
`
`1002, 30-49. Claims 1-15 were directed to an HVAC system, claims 16—18 were
`
`directed to a blower assembly, and claims 19-20 were directed to a method for
`
`driving an air-moving component of a HVAC system. Ex. 1002, 41-44.
`
`In a non-final Office Action mailed February 26, 2009, all claims were
`
`rejected under 35 USC § 103 as being unpatentable over US. Pat. 5,410,230 to
`
`Bessler and US. Pat. 5,426,354 to Bausch. Ex. 1002, 20—24, The Office stated that
`
`Bessler taught every claim element except the use of a sine wave to control the
`
`motor system. Ex. 1002, 22. However, the Office found that Bausch taught the
`
`use of a sine waves to control a permanent magnet motor which rendered the
`
`claims obvious. Ex. 1002, 22.
`
`A response to the Office Action was filed on June 26, 2009 in which the
`
`phrase “using independent values of Q and d axis currents” was added to
`
`independent claims 1, 16 and 19. Ex. 1002, 9-19. The Applicant argued that
`
`Bausch did not disclose or suggest a motor controller configured for performing
`
`40738939. I
`
`
`
`sine wave commutation “using independent values of Q and (1 axis to produce
`
`continuous currents.” Ex. 1002, 15-18.
`
`The Office mailed a Notice of Allowability on July 28, 2009 in which the
`
`examiner stated that
`
`the reasons
`
`for allowance was based on Applicant’s
`
`amendments and remarks in the response filed June 26, 2006. Ex. 1002, 3-7. The
`
`‘349 Patent issued on December 1, 2009. Ex. 1001.
`
`4.
`
`The ‘349 Patent
`
`The ‘349 Patent relates to an HVAC system that uses a permanent magnet
`
`motor that, in turn, uses sine wave commutation and independent q- and d- axis
`
`current control signals.
`
`The Background of the Invention section states that many HVAC systems
`
`used air-moving components (e.g. fans, blowers, etc.) and that those air-moving
`
`components were driven using variable speed electric motors. Ex. 1001, Col. 1:19-
`
`29. However, according to the ‘349 Patent, those variable speed motors were
`
`driven using “6-step” commutation, as opposed to using sine wave commutation.
`
`Ex. 1001, Col. 1:30-47. As the ‘349 Patent explains, the known disadvantages of
`
`6-step commutation included: 1) high cogging torque, 2) high torque ripple, and 3)
`
`lower efficiency. Ex. 1001, Col. 1:58—Col. 2:3.
`
`40738939.]
`
`
`
`The ‘349 specification states that the HVAC system of the disclosure uses a
`
`permanent magnet motor and,
`
`in response to a control signal (such as from a
`
`thermostat), the permanent magnet motor uses sine wave commutation to produce
`
`continuous phase currents in the motor for driving an air-moving component (i.e. a
`
`fan). Ex. 1001, Col. 3:24-30.
`
`As described above in connection with the prosecution history, every
`
`independent claim of the ‘349 Patent includes the limitations of: 1) using sine wave
`
`commutation, and 2) using independent values of q— and d- axis currents.
`
`B.
`
`Claim Construction (37 C.F.R. § 42.104(b)(3))
`
`In an inter partes review, a claim in an unexpired patent
`
`is given the
`
`“broadest reasonable construction in light of the specification of the patent in
`
`which it appears.” 37 C.F.R. § 42.100(b). Petitioner therefore requests that the
`
`claim terms be given their broadest reasonable interpretation, as understood by one
`
`of ordinary skill in the art and consistent with the disclosure. See Office Patent
`
`Trial Practice Guide, 77 Fed. Reg. 48756, 48764 (Aug. 14, 2012). However,
`
`because the district court may apply a different standard, the claim interpretations
`
`presented in this petition do not necessarily reflect the claim constructions that
`
`Petitioner believes should be adopted by the district court in the Litigation or any
`
`other proceeding. Petitioner does not concede that constructions offered in this
`40738939.l
`
`-9-
`
`
`
`petition,
`
`including
`
`constructions
`
`derived
`
`from that
`
`patentee’s
`
`apparent
`
`interpretations in the claims, should be adopted by the district court
`
`in the
`
`Litigation.
`
`Petitioner believes that the only phrase in claims 1-3, 8-9, 12, 16, and 19 that
`
`requires claim construction is “back-emf motor.
`
`The phrase back-emf motor is
`
`’7
`
`not defined in the ‘349 specification and is not a term of art known to those skilled
`
`in the art. See Ex. 1009, 11 43. A11 permanent magnet motors produce back emf
`
`when their rotors turn. Therefore, solely for the purposes of this inter partes
`
`review and to the extent that the phrase back-emf motor can be construed at all,
`
`“back-emf motor” should be construed to be coterminous with the phrase
`
`“permanent magnet motor.”
`
`Petitioner requests that the rest of the terms and phrases in claims 1-3, 8-9,
`
`12, 16, and 19 be given their broadest reasonable interpretation consistent with
`
`their plain and ordinary meaning.
`
`C.
`
`The Challenged Claims Are Invalid Under 35 U.S.C. § 102(b)
`
`1.
`
`Ground 1 - Hideji
`
`Claims 1-3, 8—9, 12, 16, and 19 are anticipated under 35 U.S.C. § 102(b) by
`
`Hideji. Hideji generally describes an HVAC system that uses a permanent magnet
`
`motor using sine wave commutation and independent q- and d- axis current
`
`4073 8939.1
`
`-10-
`
`
`
`commands.
`
`See Ex. 1005. Hideji was not considered during the original
`
`prosecution of the ‘349 Patent, not is it cumulative of any prior art considered by
`
`the Examiner. The following chart demonstrates, on a limitation-by-limitation
`
`bases, how claims 1-3, 8-9, 12, 16, and 19 of the ‘349 Patent are anticipated by
`
`Hideji.
`
`US. Patent No.
`7,626,349
`1. A heating,
`ventilating and/or air
`conditioning
`(HVAC) system
`comprising
`
`Disclosure in Hideji
`
`Hideji discloses an air conditioning system.
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`synchronous motor and an air conditioning
`device,
`in particular
`to a technology for
`controlling a permanent magnet synchronous
`motor in a sine wave driving mode.
`
`Hideji,1] [0001]
`
`Hideji,1[ [0022]
`
`device
`conditioning
`air
`an
`Moreover,
`includes an indoor unit and an outdoor unit,
`characterized by also including: a permanent
`magnet synchronous motor used for driving a
`fan
`
`Hideji, 1] [0018]
`
`is a diagram of a refrigerant circuit of
`1
`Fig.
`an air conditioning device with a compressor
`driven by a permanent magnet synchronous
`motor (called as bmshless DC motor below).
`
`40738939.l
`
`-11-
`
`
`
`US. Patent No.
`7,626,349
`
`Disclosure in Hideji
`
`
`
`Hideji, FIG. 1.
`
`See Ex. 1009, 1] 33.
`
`a system controller,
`
`Hideji discloses a system controller because it discloses
`an HVAC system. Moreover, the target speed in Fig. 2
`of Hideji comes from a system controller that tells the
`motor controller the commanded speed ofthe motor.
`
`performs
`38
`part
`control
`speed
`The
`control)
`(Pl
`control
`integral
`proportional
`based on the deviation between the speed of
`the rotor calculated by the rotor Speed and
`position calculating part 37 and the target
`speed of the rotor every 1 ms, for example, to
`generate a torque current lq target value.
`
`Hideji, 1[ [0037]
`
`40738939.]
`
`-12-
`
`
`
`
`
`US. Patent No.
`
`7,626,349
`
`
`Disclosure in Hideji
`
`
`
`Hi'deji, FIG. 2.
`
`See Ex. 1009,184-
`
`
`
`
`
`
`
`To the extent the Patent Owner argues that Hideji does
`not disclose a system controller,
`it would have been
`obvious to one of ordinary skill
`in the art to use a
`system controller, such as a thermostat, with an HVAC
`system. Thermostats have been used long before the
`‘349 Patent’s priority date to control HVAC systems.
`See eg. Bessler. See also Ex. 1009, ii 48.
`
`
`
`
`
` Hideji discloses a motor controller.
`
`a motor controller,
`
`
`
`
`
`
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`synchronous motor and an air conditioning
`device,
`in particular
`to a technology for
`controlling a permanent magnet synchronous
`motor in a sine wave driving mode.
`
`Hz'deji,1l [0001]
`
`
`
`
`
`invention provides[T]he a method for
`
`40738939.]
`
`-13-
`
`
`
`
`
`
`
`
`Disclosure in Hideji
`
`US. Patent No.
`
`7,626,349
`
`
`
`
`
`
`controlling a permanent magnet synchronous
`motor, and for performing vector control on
`the permanent magnet synchronous motor in
`a sine wave driving mode
`
`Hideji, 'n [0006]
`
`Fig. 2 is a block diagram of a driving device
`for brushless DC motors.
`
`Hideji, 11 [0028]
`
`Each of brushless DC motors 30A and 30B
`
`includes a stator winding and a rotor of a
`permanent magnet which are not shown in
`the diagram, and these brushless DC motors
`30A and SOB are driven by a brushless DC
`motor driving device 50 respectively.
`
`Hideji, 11 [00:29].
`
`
`
`lL‘ T?
`
`tlure-ylm
`valance con-semi
`
`_
`
`'Jvu 10.45.]
`‘uw you" “
`1mm".
`[ML_,_-
`i)
`56
`
`33851333-
`
`’
`
`cuneni 513::
`h
`
`L‘
`
`.
`!.
`t
`|
`ntarsryeecleml l---—--‘—__—‘
`‘
`'
`'
`posihon
`_
`i cahfiahrepm
`
`37
`
`Hideji, FIG. 2.
`
`40738939}
`
`-14-
`
`
`
` US. Patent No.
`Disclosure in Hideji
`
`7,626,349
`
`See Ex. 1009,1[35
`
`
`an air-moving
`component, and
`
`Hideji discloses an air—moving component.
`
`
`
`
`
`
`
`
`
`
`
`When a fan for heat exchange is driven, a
`part of three—phase alternating current
`is
`supplied to the brushless DC motor by a
`three-phase PWM inverter, converted to a
`revolving coordinate system of the rotor and
`used as flux current Id and torque current lq.
`The
`position
`and
`revolving
`speed
`(revolutions) of
`the
`rotor are
`calculated
`through these currents, and drive control of
`the fan is performed on the basis of these
`calculated values.
`
`Hidejz',1i [0003].
`
`device
`conditioning
`air
`an
`Moreover,
`includes an indoor unit and an outdoor unit,
`
`characterized by also including: a permanent
`magnet synchronous motor used for driving a
`fan
`
`Hidejz', 11 [0018].
`
`Moreover, an outdoor fan 20 which is driven
`by a brushless DC motor 30A and blows air
`to
`the
`outdoor
`heat
`exchanger
`19
`is
`configured adjacent
`to the outdoor heat
`exchanger 19.
`
`Hideji, 1] [0025]
`
`fan 23 which is driven by a
`An indoor
`brushless DC motor 30B and blows air to the
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`is configured
`21
`indoor heat exchanger
`
`
`
`407389311
`
`-15,
`
`
`
`Disclosure in Hideji
`
`adjacent to the indoor heat exchanger 21.
`
`Hideji, 11 [0026]
`
`See Hie/eff, FIG. 1.
`
`See Ex. 1009,1136.
`
`
`
`
`
`Hideji discloses a permanent magnet motor, which
`includes a stator and a rotor. Furthermore, the rotor has
`
`
` US. Patent No.
`
`7,626,349
`
`
`
`a permanent magnet
`motor having a
`stationary assembly,
`a rotatable assembly
`in magnetic coup1ing
`relation to the
`
`stationary assembly,
`and a shaft coupled
`to the air-moving
`
`component,
`
`
`
`
`
`
`a shaft that is coupled to a fan.
`
`The working state of a permanent magnet
`synchronous motor ...
`
`Abstract
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`synchronous motor and an air conditioning
`device,
`in particular
`to a technology for
`controlling a permanent magnet synchronous
`motor in a sine wave driving mode.
`
`Hfdejz’, ‘11 [0001]
`
`a
`as
`serving
`A brushless DC motor
`is
`permanent magnet
`synchronous motor
`provided with a stator winding and a rotor of
`a permanent magnet and is driven under the
`control of an inverter and the like.
`
`Hideji, 1] [0002]
`
`device
`conditioning
`air
`an
`Moreover,
`includes an indoor unit and an outdoor unit,
`
`
`
`characterized by also including: a permanent
`
`magnet synchronous motor used for driving a
`
`40738039.]
`
`-16-
`
`
`
`
`
`
`
`US. Patent No.
`
`Disclosure in Hideji
`
`fan
`
`Hideji, 1] [0018]
`
`7,626,349
`
`
`
`
`is a diagram of a refrigerant circuit of
`l
`Fig.
`an air conditioning device with a compressor
`driven by a permanent magnet synchronous
`motor (called as brushless DC motor below).
`
`Hideji, 1] [0022]
`
`Moreover, an outdoor fan 20 which is driven
`
`by a brushless DC motor 30A and blows air
`to
`the
`outdoor
`heat
`exchanger
`19
`is
`configured adjacent
`to the outdoor heat
`exchanger 19.
`
`Hideji, it [0025]
`
`
`
`fan 23 which is driven by a
`An indoor
`brushless DC motor 303 and blows air to the
`
`is configured
`21
`indoor heat exchanger
`adjacent to the indoor heat exchanger 21.
`
`Hide/'13] [0026]
`
`Each of brushless DC motors 30A and 30B
`
`includes a stator winding and a rotor of a
`permanent magnet which are not shown in
`the diagram, and these brushless DC motors
`30A and 3013 are driven by a brushless DC
`motor driving device 50 respectively.
`
`Hid/eff, 1] [0029]
`
`See Hideji, FIGS. 1 and 2.
`
`See Ex. 1009,11 37.
`
`
`40738939.]
`
`-17-
`
`
`
`Disclosure in'Hideji',
`,
`0
`using
`commutation
`sine wave
`Hideji
`performs
`independent values of Q and
`d
`axis
`currents.
`Moreover, the sine wave commutation is performed in
`response to one or more signals from the system
`controller.
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`synchronous motor and an air conditioning
`device,
`in particular
`to a technology for
`controlling a permanent magnet synchronous
`motor in a sine wave driving mode.
`
`Hideji, in [0001]
`
`US. Patent No.
`7,626,349 '
`wherein the motor
`controller is
`configured for
`performing sine
`wave commutation,
`using independent
`values of Q and d
`axis currents, in
`
`response to one or
`more control signals
`received from the
`
`system controller to
`produce continuous
`phase currents in the
`
`permanent magnet
`motor for driving the
`air-moving
`
`component.
`
`
`
`these existing brushless DC
`As known,
`motors are driven in a sine wave driving
`mode in the absence of sensors for detecting
`revolving speeds and positions of rotors.
`When a fan for heat exchange is driven, a
`part of three-phase alternating current
`is
`supplied to the brushless DC motor by a
`three-phase PWM inverter, converted to a
`revolving coordinate system of the rotor and
`used as flux current Id and torque current Iq.
`The
`position
`and
`revolving
`speed
`(revolutions) of the rotor are calculated
`through these currents, and drive control of
`the fan is performed on the basis of these
`calculated values.
`
`Hidejz', 11 [0003]
`
`a method for
`invention provides
`[T]he
`controlling a permanent magnet synchronous
`motor, and for erformin; vector control on
`
`4073 8939. l
`
`-18—
`
`
`
`US. Patent No.
`7,626,349
`
`Disclosure in Hideji
`
`7
`
`the permanent magnet synchronous motor in
`a sine wave driving mode
`
`Hideji, 1[ [0006]
`
`coordinate
`three-phase/two-phase
`The
`conversion part 36 converts the coordinates
`of the alternating current Ill and Iv introduced
`by the current input part 35 to a revolving
`coordination
`system (d—q
`coordination
`system) on the rotor of the brushless DC
`motor 30A, and calculates flux current Id (d—
`axis current) and torque current
`Iq (q-axis
`current).
`
`Hideji, ‘fl [0035]
`
`See Hideji, FIG. 2.
`
`Ex. 1009, 1] 38-40.
`
`
`
`2. The HVAC
`system of claim 1
`wherein the
`stationary assembly
`includes a plurality
`of phase windings
`and the motor
`controller is
`configured for
`energizing all of the
`phase windings at
`the same time.
`
`synchronous
`Hideji discloses a permanent magnet
`motor that has a stationary assembly (stator) that has a
`plurality of phase windings.
`In addition, the motor
`controller in Hideji is configured to energize all of the
`phase windings at the same time.
`
`a
`as
`serving
`A brushless DC motor
`is
`permanent magnet
`synchronous motor
`provided with a stator winding and a rotor of
`a permanent magnet and is driven under the
`control of an inverter and the like.
`Hideji, 1} [0002]
`
`these existing brushless DC
`As known,
`motors are driven in a sine wave drivin_
`
`40738939.]
`
`-19-
`
`
`
`
`
`US. Patent No.
`
`7,626,349
`
`
`
`
`
`Disclosure in Hideji
`
`mode in the absence of sensors for detecting
`revolving speeds and positions of rotors.
`When a fan for heat exchange is driven, a
`part of three—phase alternating current
`is
`supplied to the brushless DC motor by a
`three—phase PWM inverter...
`
`Hideji, in [0003]
`
`Each of brushless DC motors 30A and 30B
`
`includes a stator winding and a rotor of a
`permanent magnet which are not shown in
`the diagram, and these brushless DC motors
`30A and 3013 are driven by a brushless DC
`motor driving device 50 respectively.
`
`Hideji, it [0029]
`
`The brushless DC motor driving device 50
`roughly includes a three-phase PWM inverter
`31
`
`Hr'deji, ii [0030]
`
`
`
`31
`the three-phase PWM inverter
`Thus,
`converts the direct current
`into alternating
`current having the assigned frequency and
`voltage corresponding to the working state of
`the brushless DC motor 30A,
`and the
`
`the
`to
`supplied
`is
`current
`alternating
`brushless DC motor 30A, so as to control the
`
`revolving speed and the like of the brushless
`DC motor 30A.
`
`Hideji, ii [0031]
`
`See Hideji, FIG. 2.
`
`I—
`40733939.]
`
`
`
`
`
`
`
`J
`
`
`
`U.S.‘ Patent No,
`7,626,349
`
`. Disclosure in Hidej‘iw
`
`3. The HVAC
`system of claim 2
`wherein the
`continuous phase
`currents are
`substantially
`sinusoidal.
`
`in Hideji are continuous and
`The phase currents
`substantially sinusoidal.
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`synchronous motor and an air conditioning
`device,
`in particular to a technology for
`controlling a permanent magnet synchronous
`motor in a sine wave driving mode.
`
`Hideji,1I [0001]
`
`these existing brushless DC
`As known,
`motors are driven in a sine wave driving
`mode
`
`Hideji, 11 [0003]
`
`a method for
`invention provides
`[T]he
`controlling a permanent magnet synchronous
`motor, and for performing vector control on
`the permanent magnet synchronous motor in
`a sine wave driving mode
`
`Hideji, 11 [0006]
`
`See Ex. 1009, 1] 40.
`
`
`
`8. The HVAC
`system of claim 3
`wherein the
`permanent magnet
`motor is a brushless
`permanent magnet
`(BPM) motor.
`
`Hideji discloses that its motors can be brushless DC
`motors, which are brushless permanent magnet motors.
`
`a
`as
`serving
`A brushless DC motor
`is
`permanent magnet
`synchronous motor
`provided with a stator winding and a rotor of
`a permanent magnet and is driven under the
`
`40738939.1
`
`-21-
`
`
`
`US. Patent No.
`
`Hideji, 1i [0002]
`
`
` Disclosure in Hideji
`
`
`7,626,349
`
`control ol’an inverter and the like.
`
`
`
`
`
`
`
`
`is a diagram of a refrigerant circuit of
`1
`Fig.
`an air conditioning device with a compressor
`driven by a permanent magnet synchronous
`motor (called as brushless DC motor below).
`
`Hidejz',1] [0022]
`
`Each of brushless DC motors 30A and 3013
`
`
`includes a stator winding and a rotor of a
`permanent magnet which are not shown in
`the diagram, and these brushless DC motors
`30A and 308 are driven by a brushless DC
`motor driving device 50 respectively.
`
`Hz'dej'i,1l [0029]
`
`See Ex. 1009,1142.
`
`
`
`
`
`
`
` 9. The HVAC
`
`
`system of claim 8
`wherein the BPM
`motor is a back-emf
`BPM motor.
`
`4073 893‘) |
`
`The permanent magnet motors of I-Iideji create back
`emf when they turn.
`
`
`
`
`a
`as
`serving
`A brushless DC motor
`is
`permanent magnet
`synchronous motor
`provided with a stator winding and a rotor of
`a permanent magnet and is driven under the
`control of an inverter and the like.
`
`Hidejr’, ti [0002]
`
`is a diagram of a refrigerant circuit of
`l
`Fig.
`an air conditioning device with a compressor
`driven by a permanent magnet synchronous
`motor (called as brushless DC motor below).
`
`
`
`US. Patent No.
`7,626,349
`,
`
`Disclosure in Hideji
`
`Hideji,1l [0022]
`
`Each of brushless DC motors 30A and 30B
`
`includes a stator winding and a rotor of a
`permanent magnet which are not shown in
`the diagram, and these brushless DC motors
`30A and 30B are driven by a brushless DC
`motor driving device 50 respectively.
`
`Hideji,1l [0029]
`
`See Hideji FIG. 1.
`
`See Ex. 1009, 1] 43.
`
`Hideji discloses that the control signal
`speed.
`
`is a desired
`
`
`
`12. The HVAC
`system of claim 3
`wherein the at least
`one control signal
`from the system
`controller represents
`a desired torque or
`speed ofthe
`permanent magnet
`motor.
`
`performs
`38
`part
`control
`speed
`The
`(PI control)
`integral control
`proportional
`based on the deviation between the speed of
`the rotor calculated by the rotor speed and
`position calculating part 37 and the target
`speed of the rotor every 1 ms, for example, to
`generate a torque current Iq target value.
`
`Hideji, 11 [0037]
`
`[T]he control device 34 of the brushless DC
`motor driving device 50 judges whether a
`motor running command is formed or not
`based on the operation of an operator or the
`preset program (step 81).
`
`Hideji, 1] [0044]
`
`4073 8939. l
`
`See Hideji, FIG. 2.
`
`-23-
`
`
`
`
`Disclosure in Hideji
`
`
`
`
`See Ex. 1009,1[44
`
`
`
`Hideji discloses a fan for use in an I-IVAC system.
`
`
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`synchronous motor and an air conditioning
`device...
`Hide/'1', fl [000]]
`
`
`US. Patent No.
`
`7,626,349
`
`16. A blower
`
`assembly for a
`heating, ventilating
`and/or air
`conditioning
`(HVAC) system, the
`blower assembly
`comprising
`
`
`
`
`
`4073 8939.]
`
`
`
`
`
`device
`conditioning
`air
`an
`Moreover,
`includes an indoor unit and an outdoor unit,
`
`characterized by also including: a permanent
`magnet synchronous motor used for driving a
`fan
`
`Hideji, 1] [0018]
`
`fan 23 which is driven by a
`An indoor
`brushless DC motor 30B and blows air to the
`
`is configured
`indoor heat exchanger 2]
`adjacent to the indoor heat exchanger 21.
`
`Hideji, it [0026]
`
`is a diagram of a refrigerant circuit of
`1
`Fig.
`an air conditioning device with a compressor
`driven by a permanent magnet synchronous
`motor (called as brushless DC motor below).
`
`Hideji, ] [0022]
`
`See Hide/'1', FIG. 1.
`
`See Ex. 1009, 1] 45.
`
`
`
`
`
`
`
`U.S.Patent.No.
`7,626,349
`a motor controller,
`
`ablower, and
`
`‘ Disclosure in Hideji
`
`See above re Claim 1 for identical claim limitation.
`
`Hideji discloses the use of a fan with the indoor air
`conditioning unit, which is a blower.
`
`Hideji,1] [0003]
`
`device
`conditioning
`air
`an
`Moreover,
`includes an indoor unit and an outdoor unit,
`
`characterized by also including: a permanent
`magnet synchronous motor used for driving a
`fan
`
`Hideji,1] [0018]
`
`fan 23 which is driven by a
`An indoor
`brushless DC motor 30B and blows air to the
`
`is configured
`indoor heat exchanger 21
`adjacent to the indoor heat exchanger 21.
`
`Hideji,1] [0026]
`
`See Hideji, FIG. 1.
`
`See Ex. 1009, 11 45.
`
`
`
`a permanent magnet Hideji discloses a permanent magnet motor, which
`motor having a
`includes a stator and a rotor. Furthermore, the rotor has
`stationary assembly,
`a shaft that is coupled to a fan.
`a rotatable assembly
`in magnetic coupling
`relation to the
`
`The working state of a permanent magnet
`synchronous motor
`
`stationary assembly, Abstract
`and a shaft coupled
`to the blower,
`
`The present invention relates to a method and
`a device for controlling a permanent magnet
`s nchronous motor and an air conditionin_
`
`40738939.!
`
`-25-
`
`
`
`US. Patent No.
`
`7,626,349
`
`Disclosure in Hideji
`
`
`technology for
`to a
`in particular
`device,
`controlling a permanent magnet synchronous
`motor in a sine wave driving mode.
`
`Hideji, ll [0001]
`
`a
`as
`serving
`A brushless DC motor
`is
`permanent magnet
`synchronous motor
`provided with a stator winding and a rotor of
`a permanent magnet and is driven under the
`control of an inverter and the like.
`
`H:'deji,1l [0002]
`
`device
`conditioning
`air
`an
`Moreover,
`includes an indoor unit and an outdoor unit,
`
`characterized by also including: a permanent
`magnet synchronous motor used for driving a
`fan
`
`Hidejz', it [0018]
`
`is a diagram of a refrigerant circuit of
`l
`Fig.
`an air conditioning device with a compressor
`driven by a permanent magnet synchronous
`motor (called as brushless DC motor below).
`
`Hide/'1', 1} [0022]
`
`fan 23 which is driven by a
`An indoor
`brushless DC motor 30B and blows air to the
`
`configured
`is
`21
`indoor heat exchanger
`adjacent to the indoor heat exchanger 21.
`
`Hideji, 1i [0026]
`
`Each of brushless DC motors 30A and 30B
`
`includes a stator winding and a rotor of a
`permanent magnet which are not shown in
`
`
`
`—26-
`
`
`
`
`
`L4
`
`073 893‘) l
`
`
`
`US. Patent No.
`7,626,349
`
`Disclosure in Hideji
`
`the diagram, and these brushless DC motors
`30A and 30B are driven by a brushless DC
`motor driving device 50 respectively.
`
`Hideji, 1] [0029]
`
`See Hideji, FIGS. 1 and 2.
`
`See Ex. 1009, 1] 37.
`
`usi
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