DETAILED ACTION
Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Specification
The disclosure is objected to because of the following informalities: in ¶63 the specification recites “voltages V3, V4, V5, and V6 of the output terminals” but the examiner believes it should read “voltages V4, V5, V6, and V7 of the output terminals” to match the drawing fig. 4.
Appropriate correction is required.
Claim Rejections - 35 USC § 103
In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status.
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows:
1. Determining the scope and contents of the prior art.
2. Ascertaining the differences between the prior art and the claims at issue.
3. Resolving the level of ordinary skill in the pertinent art.
4. Considering objective evidence present in the application indicating obviousness or nonobviousness.
Claims 1-2, 7-10, 14 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over Song KR 20140131174 in view of Furukawa et al. JP 2010057290.
With regards to claims 1 and 9 Song discloses, a battery management apparatus [Abstract “battery management apparatus”], comprising:
an information collector configured to obtain a first voltage measured at an output terminal of each of a plurality of battery packs connected in series [fig 2 charging voltage measurement unit 22] and
a second voltage that is a battery module voltage value of each of the plurality of battery packs [fig 2 battery voltage measurement unit 21]; and
a controller configured to control operations [fig 2 control unit 29] of
a precharge relay [fig 2 switch unit 23] included in each of the plurality of battery packs, based on the first voltage and the second voltage [¶32 “the controller 29 measures the voltage of the switch unit 23. The voltage of the switch unit 23 may be calculated by subtracting the battery voltage measured by the battery voltage measurement unit 22 from the charging voltage measured by the battery voltage measurement unit 21. The control unit 29 outputs a control signal of the pwm so that the maximum current allowed within the power limit of the power rating can flow in comparison with the measured voltage of the switch unit 23”].
Song fails to disclose a main relay.
However, Furukawa discloses a main relay [Fig 1 contactor 3 (claimed main relay)].
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the battery systems of Song and Furukawa to include a main contactor/relay in order to improve safety and more efficiently manage power.
Claim 9 is rejected for similar reasons as claim 1 above, a detailed discussion is avoided for brevity.
With regards to claims 2 and 10, the combination discloses, the battery management apparatus of claim 1, wherein the controller is further configured to generate a control signal for short-circuiting the precharge relay included in each of the plurality of battery packs and for opening the main relay included in each of the plurality of battery packs when the operations of the plurality of battery packs connected in series are initiated [Furukawa ¶33 “the control circuit 20 switches on the negative side contactor 3B and precharge relay 5 to precharge the load capacitor 11” which reads on the precharge relay being closed (short circuited) while the main contactor (main relay) is open in order to perform precharge functions].
With regards to claim 7 the combination discloses, the battery management apparatus of claim 1, wherein a precharge resistor is serially connected to the precharge relay [Furukawa fig 1 resistor 6 in series with relay 5].
With regards to claim 8 the combination discloses, he battery management apparatus of claim 1, wherein the battery module is provided in plural [Song ¶27 “The battery unit 1 corresponds to a battery unit, and the battery unit may be composed of at least one battery cell”].
With regards to claims 14 and 15 the combination discloses, the battery management apparatus of claim 1, wherein the precharge relay and the main relay are connected to each other in parallel and are each connected between a battery module and the output terminal in each of the plurality of battery packs [Furukawa fig 1 where the precharge relay 5 and main relay/contactor 3a are connected in parallel between the battery module 2 and the output terminal 7].
Claims 3 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over Song KR 20140131174 in view of Furukawa et al. JP 2010057290 further in view of Kang US 20180026456.
With regards to claims 3 and 11 Song in view of Furukawa fail to disclose, the battery management apparatus of claim 1, wherein the controller is further configured to: calculate a first result value by summing the first voltages of the plurality of battery packs; compare a minimum value among the second voltages of the plurality of battery packs with the first result value; and generate a control signal for opening the precharge relay and for short-circuiting the main relay, each included in a battery pack having the second voltage corresponding to the minimum value among the plurality of battery packs, if the first result value is greater than the minimum value among the second voltages.
However, Kang discloses, the battery management apparatus of claim 1, wherein the controller is further configured to: calculate a first result value by summing the first voltages of the plurality of battery packs [¶43 “the battery voltage may be an arithmetic sum of the detected cell voltages”];
compare a minimum value among the second voltages of the plurality of battery packs with the first result value; and generate a control signal for opening the precharge relay and for short-circuiting the main relay, each included in a battery pack having the second voltage corresponding to the minimum value among the plurality of battery packs, if the first result value is greater than the minimum value among the second voltages [¶8 “each of the battery managers may collect battery voltages of the other battery modules from the module information, and when a size of battery voltage of a corresponding battery module is in a preset order among sizes of battery voltages of the other battery modules, the charge and discharge switches of a corresponding switch circuit may be closed and the precharge switch of the corresponding switch is to be opened”].
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to further combine the systems of Song in view of Furukawa with Kang to sum and compare the module voltages within the system in order to improve efficiency and power management.
Claim 6 is rejected under 35 U.S.C. 103 as being unpatentable over Song KR 20140131174 in view of Furukawa et al. JP 2010057290 further in view of Yang US 20160241057.
With regards to claim 6 Song and Furukawa fail to disclose, the battery management apparatus of claim 1, wherein the main relay and the precharge relay comprise a bipolar junction transistor (BJT) or a metal-oxide-semiconductor field-effect transistor (MOSFET).
However, Yang discloses, the battery management apparatus of claim 1, wherein the main relay and the precharge relay comprise a bipolar junction transistor (BJT) or a metal-oxide-semiconductor field-effect transistor (MOSFET) [Fig 3 FETs 313 and 315].
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to further combine the charging systems of Song in view of Furukawa with Yang to use FETs as the switching devices in order to prevent switch failure and improve overall safety and reliability of the circuit.
Allowable Subject Matter
Claims 4-5 and 12-13 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims.
The following is a statement of reasons for the indication of allowable subject matter: the prior art fails to further teach or suggest; with regards to claims 4 and 12 “calculate a second result value by summing the second voltages of battery packs comprising short-circuited main relays among the plurality of battery packs; calculate a third result value by summing the second result value and a minimum value among the second voltages of battery packs comprising short-circuited precharge relays among the plurality of battery packs; compare the first result value with the third result value; and generate the control signal for opening the precharge relay and for short-circuiting the main relay, each included in the battery pack having the second voltage corresponding to the minimum value among the second voltages of the battery packs including the short-circuited precharge relays, if the first result value is greater than the third result value”, and with regards to claims 5 and 13 “wherein the controller is further configured to: calculate a fourth result value by summing all of the second voltages of the plurality of battery packs; and generate a control signal for opening the precharge relays of the plurality of battery packs and for short-circuiting the main relays of the plurality of battery packs, if a difference between the fourth result value and the first result value is less than or equal to a reference value”.
Conclusion
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/NATHAN J INSTONE/Examiner, Art Unit 2859
/JULIAN D HUFFMAN/Supervisory Patent Examiner, Art Unit 2859