VIBRATION CONTROL DEVICE OF VEHICLE

• Main Author: CHIBA MASAKI
• Format: Patent
• Language: English; Japanese
• Published: 09.11.2017
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a control technology which reduces a risk of resonance of a component of a steering mechanism.SOLUTION: A vibration control device has a steering mechanism, a motor giving an assist torque which assists a steering operation to a steering mechanism, an angle signal generation unit which generates an angle signal indicating a rotation angle of the motor, and a controller which controls the motor according to the angle signal. A vibration frequency range between the maximum specific frequency and the minimum specific frequency in components of the steering mechanism is less than 2 hZ. The controller includes a first torque determination unit which determines a first torque from a steering torque, a correction unit which determines a correction value, and a second torque determination unit which corrects the first torque and determines an assist torque. The angle signal contains a plurality of signal components which vibrate at a frequency in the frequency range. The correction unit multiplies the plurality of signal components by a specifically high gain and processes the angle signal.SELECTED DRAWING: Figure 1 【課題】ステアリング機構の構成部品の共振のリスクを低減する制御技術を提供することを目的とする。【解決手段】本出願は、ステアリング機構と、操舵動作を補助するアシストトルクをステアリング機構に与えるモータと、モータの回転角を表す角度信号を生成する角度信号生成部と、角度信号に応じて、モータを制御するコントローラと、を備える振動制御装置を開示する。ステアリング機構の構成要素の中で最大及び最小の固有振動数の間の振動数範囲は、２ｈｚ未満である。コントローラは、操舵トルクから第１トルクを決定する第１トルク決定部と、補正値を決定する補正部と、第１トルクを補正し、アシストトルクを決定する第２トルク決定部と、を含む。角度信号は、振動数範囲内の振動数で振動する複数の信号成分を含む。補正部は、複数の信号成分に特異的に高いゲインを掛け、角度信号を処理する。【選択図】図１