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US 10,538,266 B2Granted
Steering control apparatus
AssigneeJtekt Corporation
InventorsHidenori Itamoto, Takashi Kageyama, Toshie Hibi
Life of this patent
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AssigneeJtekt Corporation
InventorsHidenori Itamoto, Takashi Kageyama, Toshie Hibi
Estimating the term…
A current command value calculation circuit includes an end abutment determination circuit and a guard processing circuit. When a decrease amount of an induced voltage value within a predetermined time is equal to or larger than a predetermined decrease amount in the state that a steering torque is equal to or larger than a predetermined torque, the end abutment determination circuit determines that the end abutment occurs. When a determination signal indicating that the end abutment state does not occur is input, the guard processing circuit outputs an elemental current command value directly as a q-axis current command value. When a determination signal indicating that the end abutment state occurs is input, the guard processing circuit outputs, as the q-axis current command value, a value obtained by limiting the elemental current command value so that its absolute value is equal to or lower than a predetermined limit current value.
A steering control apparatus configured to control a steering system in which an assist force for causing a steering operation shaft to reciprocate is applied to a steering mechanism by an assist mechanism having a motor as a drive source, the steering control apparatus including a control circuit configured to control an operation of the motor so that the assist force is generated, the steering control apparatus comprising:
Dependencies are inferred from the claim text.