In an electric power steering system, an ECU 12 includes a rotation angle calculation unit 41, an assist torque command value calculation unit 42, a reference model 43, an angle deviation calculation unit 44, a PD control unit 45, an addition unit 47, and a plant observer 48. A proportional gain and a derivative gain which are used in the PD control unit 45 and a first gain and a second gain which are used in a first gain multiplication unit and a second gain multiplication unit of the plant observer 48 are set so that a characteristic equation corresponding to an equation of motion representing behavior of the electric power steering system has a double root.
ELECTRIC POWER STEERING SYSTEM AND GAIN SETTING METHOD THEREOF
ELEKTRISCHE SERVOLENKUNG UND VERSTÄRKUNGSEINSTELLVERFAHREN DAFÜR
SYSTÈME DE DIRECTION ASSISTÉE ÉLECTRIQUE ET SON PROCÉDÉ DE RÉGLAGE DE GAIN
24.04.2019
Patent
Elektronische Ressource
Englisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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