Title:
VEHICULAR DRIVING CONTROL DEVICE AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/188667
Kind Code:
A1
Abstract:
A vehicular driving control device comprises: an electric power conversion circuit that is connected to a DC power source and that supplies electric power of the DC power source to an electric motor in accordance with a voltage command; a filter circuit configured to be interposed between the DC power source and the DC side of the electric power conversion circuit and to have a reactor and a capacitor; a variation detection unit for detecting a varying component of the electrical quantity regarding the filter circuit; a torque control unit for generating the voltage command applied to the electric motor in accordance with a torque command or a current command; and a damping control unit for operating the electric power conversion circuit so as to suppress the varying component. The damping control unit operates the electric power conversion circuit in accordance with a damping operation amount based on a first operation amount calculated in accordance with the torque command or the current command and the varying component and a second operation amount calculated in accordance with the varying component and rotation rate information relating to the electric motor. Accordingly, it is possible to provide a vehicular driving control device that performs damping control at a fixed attenuation, regardless of the voltage of DC wires or operating point of the electric motor, with respect to oscillation of capacitor voltage.
Inventors:
NAKAYAMA HIRO (JP)
KOJIMA TETSUO (JP)
KOJIMA TETSUO (JP)
Application Number:
PCT/JP2022/048660
Publication Date:
October 05, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B60L9/18; H02P21/05; H02M7/48
Domestic Patent References:
| WO2011039794A1 | 2011-04-07 |
Foreign References:
| JP2010161925A | 2010-07-22 | |||
| JP2007151392A | 2007-06-14 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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