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 .
Priority
The applicant’s claim to priority KR1020240076470 on 06/12/2024 is acknowledged.
Information Disclosure Statement
The information disclosure statement (IDS) submitted on 11/21/2024 complies with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner.
Claim Rejections - 35 USC § 102
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 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 the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action:
A person shall be entitled to a patent unless –
(a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention.
Claim(s) 1-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Takebayashi et al. (20230286393; hereinafter Takebayashi).
Regarding claim 1, Takebayashi teaches a motor driving apparatus comprising (Takebayashi: Abstract):
a first motor and a second motor, each independently driving a left wheel and a right wheel of a vehicle (Takebayashi: “the control apparatus is applied to a vehicle including two driving motors coupled to the left and right wheels, with respect to the front wheels, the rear wheels, or both” ¶ 106);
a first inverter unit driving the first motor through at least one inverter and a second inverter unit driving the second motor through at least one inverter (Takebayashi: “The inverter unit 13 includes a first inverter circuit, a second inverter circuit, and a third inverter circuit ... The second inverter circuit controls driving of the left rear wheel driving motor 11LR. The third inverter circuit controls driving of the right rear wheel driving motor 11RR” ¶ 108); and
a controller controlling the first inverter unit and the second inverter unit based on a torque command and an output limit for each of the first motor and the second motor (Takebayashi: “the motor control unit 67 distributes the target driving torque for the entire vehicle 1A to the front wheel driving motor 11F for the front wheels, the right rear wheel driving motor 11RR and the left rear wheel driving motor 11LR for the rear wheels, in accordance with a preset basic ratio” ¶ 111), wherein the controller performs torque vectoring to drive the left wheel and the right wheel with different torques by adjusting the torque command for at least one of the first motor and the second motor (Takebayashi: “the motor control unit 67 distributes the driving torque distributed to the rear wheels, to the right rear wheel driving motor 11RR and the left rear wheel driving motor 11LR, to allow a ratio of the driving torque of the driving motor provided on the opposite side to a direction of cornering to be larger” ¶ 111).
Regarding claim 2, Takebayashi teaches the motor driving apparatus of claim 1, wherein the controller performs the torque vectoring based on at least one of a torque command according to a required output of the vehicle, a steering angle of the vehicle, and a speed of the vehicle (Takebayashi: “the output increase prediction unit 63 predicts the brake operation and the accelerator operation by the driver on the basis of the current vehicle speed of the vehicle 1A detected by the vehicle state sensor 33 and the radius of curvature and the distance of the curve, and estimates the driving torque for the vehicle ... the output increase prediction unit 63 calculates driving torque obtained by distributing the driving torque distributed to the rear wheels to the left rear wheel driving motor 11LR and the right rear wheel driving motor 11RR in accordance with a distribution ratio of the torque vectoring” ¶ 120).
Regarding claim 3, Takebayashi teaches the motor driving apparatus of claim 2, wherein the controller performs the torque vectoring by adjusting the torque command for at least one of the first motor and the second motor by further considering a surface condition of a road on which the vehicle is driving (Takebayashi: “the method of calculating the driving torque as described above, on the basis of the radius of curvature and a length, i.e., a distance of continuation, of the curve” ¶ 112, “The presence or the absence of any curves ahead in the direction of travel of the vehicle 1A may be determined” ¶ 113).
Regarding claim 4, Takebayashi teaches the motor driving apparatus of claim 1, wherein the controller adjusts the output limit for the first motor based on the torque command, adjusted through the torque vectoring, for the first motor and on a present output limit for the first motor (Takebayashi: “in a case where the output increase prediction unit 63 predicts that the driving torque of the left rear wheel driving motor 11LR or the right rear wheel driving motor 11RR becomes equal to or larger than the rated output torque because of the torque vectoring control to be carried out when the vehicle 1A passes through the curve, the output limiting unit 65 provides setting to limit the driving torque” ¶ 114).
Regarding claim 5, Takebayashi teaches the motor driving apparatus of claim 1, wherein the controller adjusts the output limit for the second motor based on the torque command, adjusted through the torque vectoring, for the second motor and on a present output limit for the second motor (Takebayashi: “in a case where the output increase prediction unit 63 predicts that the driving torque of the left rear wheel driving motor 11LR or the right rear wheel driving motor 11RR becomes equal to or larger than the rated output torque because of the torque vectoring control to be carried out when the vehicle 1A passes through the curve, the output limiting unit 65 provides setting to limit the driving torque” ¶ 114).
Regarding claim 6, Takebayashi teaches the motor driving apparatus of claim 1, wherein the controller increases the output limit for a motor, among the first motor and the second motor, with a torque command adjusted upward through the torque vectoring, based on the adjusted torque command and the present output limit (Takebayashi: “In a case without a determination as to the presence of any curves ahead (S55/No), the motor control unit 67 does not limit the outputs of the left rear wheel driving motor 11LR and the right rear wheel driving motor 11RR, but sets the target torque of the front wheel driving motor 11F, the left rear wheel driving motor 11LR, and the right rear wheel driving motor 11RR in the normal mode” ¶ 119).
Regarding claim 7, Takebayashi teaches the motor driving apparatus of claim 6, wherein the controller maintains the increased output limit for a preset period of time and restores the increased output limit to a level before the increasing when the preset period of time elapses (Takebayashi: “determines that the estimated driving torque of the left rear wheel driving motor 11LR during the execution of the torque vectoring control when the vehicle 1A passes through the curve becomes equal to or larger than the rated output torque. In this case, the mode of setting the target torque of the front wheel driving motor 11F, the left rear wheel driving motor 11LR, and the right rear wheel driving motor 11RR is switched from the normal mode to the output limited mode” ¶ 132, “After the time t22, the torque vectoring control is started, with the left rear wheel driving motor 11LR at a relatively low temperature. Hence, it is possible to delay the time of an arrival at a temperature at which the output of the left rear wheel driving motor 11LR is possibly lowered, making it possible to prevent lowered performance of the left rear wheel driving motor 11LR while passing through the curve” ¶ 133).
Regarding claim 8, Takebayashi teaches the motor driving apparatus of claim 6, wherein the controller increases the output limit when output limit increase conditions, including an output limit increase allowance setting, are satisfied (Takebayashi: “In a case without a determination as to the presence of any curves ahead (S55/No), the motor control unit 67 does not limit the outputs of the left rear wheel driving motor 11LR and the right rear wheel driving motor 11RR, but sets the target torque of the front wheel driving motor 11F, the left rear wheel driving motor 11LR, and the right rear wheel driving motor 11RR in the normal mode” ¶ 119, see also ¶ 120).
Regarding claim 9, Takebayashi teaches the motor driving apparatus of claim 1, wherein the first inverter unit and the second inverter unit each include a plurality of inverters, and drive the first motor and the second motor through one or all of the plurality of inverters based on a drive mode of each of the first motor and the second motor, respectively (Takebayashi: “The inverter unit 13 includes a first inverter circuit, a second inverter circuit, and a third inverter circuit. The first inverter circuit controls the driving of the front wheel driving motor 11F. The second inverter circuit controls driving of the left rear wheel driving motor 11LR. The third inverter circuit controls driving of the right rear wheel driving motor 11RR. Otherwise. the configuration of the vehicle 1A may be similar to the configuration of the vehicle 1 illustrated in FIG. 1, and description thereof is omitted” ¶ 108, see also ¶ 125).
Regarding claim 10, Takebayashi teaches the motor driving apparatus of claim 9, wherein the output limit is determined based on the drive mode (Takebayashi: “the mode of setting the target torque of the front wheel driving motor 11F, the left rear wheel driving motor 11LR, and the right rear wheel driving motor 11RR is switched from the normal mode to the output limited mode. The output limited mode is continued until the time t22 of an arrival at the position of the start of the execution of the torque vectoring control. At the time t22, the mode of setting the target torque of the front wheel driving motor 11F, the left rear wheel driving motor 11LR, and the right rear wheel driving motor 11RR is restored to the normal mode from the output limited mode” ¶ 132).
In regards to claim(s) 11-20, the claim(s) recite analogous limitations to claim(s) 1-10, and are therefore rejected under the same premise.
Conclusion
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Gagas et al. (20220126701) is in the similar field of endeavor as the claimed invention of electric motor control.
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/C.P./Examiner, Art Unit 3663
/ABBY J FLYNN/Supervisory Patent Examiner, Art Unit 3663
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