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1.发明公开公开(公告)号：US20230318501A1
公开(公告)日：2023-10-05
申请号：US18029503
申请日：2021-08-02
发明人： Yasuhiro YAMAMOTO
CPC分类号： H02P23/04 , B60L15/20 , G05B13/042 , H02P23/12 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/465 , B60L2270/142
摘要： A vehicle system vibration suppression control device is provided for a vehicle system in which a vehicle is driven via an elastic shaft by a motor drive device having a torque control function. The vehicle system vibration suppression control device includes: a section containing an approximate model to which an output torque command is inputted; and a feedback control section. The feedback control section is configured to: employ the approximate model; calculate a motor-accelerating torque component by differentiating a measured speed component of a motor rotational speed; produce a compensation torque component by causing the motor-accelerating torque component to pass through a vibration suppression control filter; and calculate the output torque command by subtracting the compensation torque component from an input torque command. The vibration suppression control filter is expressed by a second order mathematical expression.
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公开(公告)号：US20200169185A1
公开(公告)日：2020-05-28
申请号：US16604668
申请日：2018-03-19
IPC分类号： H02M7/5387
摘要： A controller for a power conversion circuit includes a first limiter for limiting a compensating voltage component within a compensating voltage switching level. A delay time measurement section measures an ON-delay time and an OFF-delay time, based on a binarized digital value and a PWM command value. A multiplier calculates an error voltage component average value by multiplying an average value of the ON-delay time and the OFF-delay time by a value that is obtained by dividing a direct-current power supply voltage by a half cycle of a triangular wave carrier signal. A second limiter extracts a component of the error voltage component average value that is beyond the compensating voltage switching level in absolute value. An adder sets a combined compensating voltage component to a sum of a limited compensating voltage component outputted by the first limiter and a limited error voltage component outputted by the second limiter.
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