摘要:
The natural vibration frequency of a roll resonance which does not occur since the engine rotation number is high in a normal operation range of an engine is detected at the time of engine start or stop when the engine rotation number is lower than the normal operation range, and thus the natural vibration frequency of the roll resonance can be detected with a good accuracy. A current is generated by an electromotive force of an actuator of the active vibration isolation support device excited by the engine immediately before stopping its rotation, and the frequency of the current is used to detect the natural vibration frequency of the engine, and the roll resonance of the engine is suppressed by controlling the operation of the active vibration isolation support device at the time of engine start based on the natural vibration frequency, thereby not only eliminating the need of a specific frequency detection sensor, but also effectively reducing the vibration at the time of engine start when the roll resonance becomes strong.
摘要:
A solenoid driving device with excellent electric power efficiency which drives and controls an actuator including a solenoid and an active vibration isolating support device with excellent electric power efficiency which includes the solenoid driving device are disclosed. The solenoid driving device includes a booster circuit 120 which boosts a battery voltage, and driving circuits 121A, 121B which an actuator with the electric power supplied and boosted by the booster circuit 120. ACM_ECU200A including a micro computer 200b calculates the magnitude of the vibration of the engine, an engine vibration cycle and a phase lag to obtain the drive frequency f DV of the actuator in the vibration state estimating unit 234 and the phase detecting unit 235. A booster circuit controlling unit 237 of the micro computer 200b determines the target voltage V*based on the drive frequency f DV . The target voltage V* is input to the booster circuit 120, and the booster circuit120 supplies the required electric power to the driving circuits 121A, 121B at the target voltage V*.
摘要:
The natural vibration frequency of a roll resonance which does not occur since the engine rotation number is high in a normal operation range of an engine is detected at the time of engine start or stop when the engine rotation number is lower than the normal operation range, and thus the natural vibration frequency of the roll resonance can be detected with a good accuracy. A current is generated by an electromotive force of an actuator of the active vibration isolation support device excited by the engine immediately before stopping its rotation, and the frequency of the current is used to detect the natural vibration frequency of the engine, and the roll resonance of the engine is suppressed by controlling the operation of the active vibration isolation support device at the time of engine start based on the natural vibration frequency, thereby not only eliminating the need of a specific frequency detection sensor, but also effectively reducing the vibration at the time of engine start when the roll resonance becomes strong.
摘要:
A solenoid driving device with excellent electric power efficiency which drives and controls an actuator including a solenoid and an active vibration isolating support device with excellent electric power efficiency which includes the solenoid driving device are disclosed. The solenoid driving device includes a booster circuit 120 which boosts a battery voltage, and driving circuits 121A, 121B which an actuator with the electric power supplied and boosted by the booster circuit 120. ACM_ECU200A including a micro computer 200b calculates the magnitude of the vibration of the engine, an engine vibration cycle and a phase lag to obtain the drive frequency f DV of the actuator in the vibration state estimating unit 234 and the phase detecting unit 235. A booster circuit controlling unit 237 of the micro computer 200b determines the target voltage V*based on the drive frequency f DV . The target voltage V* is input to the booster circuit 120, and the booster circuit120 supplies the required electric power to the driving circuits 121A, 121B at the target voltage V*.
摘要翻译:公开了一种驱动和控制包括螺线管的致动器和包括螺线管驱动装置在内的具有优异的电力效率的主动隔振支撑装置的具有优异的电力效率的螺线管驱动装置。 螺线管驱动装置包括升压电池电压的升压电路120以及具有由升压电路120提供并升压的电力的致动器的驱动电路121A,121B。包括微计算机200b的ACM_ECU200A计算振动的大小 发动机,发动机振动周期和相位滞后,以获得振动状态估计单元234和相位检测单元235中的致动器的驱动频率f DV。微型计算机200b的升压电路控制单元237确定目标电压 V *基于驱动频率f DV。 目标电压V *被输入到升压电路120,并且升压电路120以目标电压V *将所需的电力提供给驱动电路121A,121B。