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公开(公告)号：US12126284B2
公开(公告)日：2024-10-22
申请号：US18043414
申请日：2020-08-28
发明人： Tetsuro Kojima , Kengo Fujiwara
摘要： An electric motor control method for controlling an electric motor by voltage phase control performed based on a voltage norm command value representing a magnitude of a voltage to be supplied to the electric motor and a voltage phase command value representing a phase of the voltage. The method including: acquiring a required time required for calculating a final command value of a voltage applied to the electric motor by the voltage phase control according to a command value calculation model for calculation by using a rotation speed parameter related to a rotation speed of the electric motor; detecting the rotation speed parameter; changing the detected rotation speed parameter based on the required time; and calculating the final command value by using the changed rotation speed parameter according to the command value calculation model.
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公开(公告)号：US10994619B2
公开(公告)日：2021-05-04
申请号：US16095042
申请日：2016-12-14
发明人： Akira Sawada , Kengo Fujiwara , Shou Oono
IPC分类号： B60L9/00 , G05D1/00 , G05D3/00 , G06F7/00 , G06F17/00 , B60L15/20 , H02P23/18 , B60W30/20 , B60L50/51 , B60L3/00
摘要： A control method for an electric vehicle includes controlling a torque of a motor based on a final torque command value by calculating the final torque command value such that a vibration damping control to reduce vibrations of a driving force transmission system of a vehicle is performed on a target torque command value set based on vehicle information, calculating the final torque command value based on the target torque command value and a value obtained by multiplying a drive-shaft torsional angular velocity by a feedback gain, estimating, by use of a vehicle model that models the driving force transmission system, a dead-zone period during which a motor torque output from the motor is not transmitted to a drive-shaft torque of the vehicle, and determining whether or not the vehicle is just before stop of the vehicle.
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公开(公告)号：US10507819B2
公开(公告)日：2019-12-17
申请号：US16308176
申请日：2016-06-08
发明人： Kengo Fujiwara , Ken Itou
摘要： The control method for the hybrid vehicle includes a rotation speed control torque calculation step of, based on a rotation speed command value for the electric generator and a rotation speed detection value of the electric generator, calculating a torque command value for controlling the rotation speed of the electric generator, and an electric generator control step of controlling the electric generator according to the torque command value. The rotation speed control torque calculation step calculates, using the model matching compensator and based on a value obtained by filtering the rotation speed detection value through the low-pass filter and the rotation speed command value, a basic torque command value that makes a torque response of the electric generator coincide with a preset model response, calculates, using the disturbance observer including the transfer function composed of the inverse system of the control object model patterned after a power transmission system of the electric generator connected to the engine via the gears and a disturbance observer filter, and based on the rotation speed detection value, a disturbance torque that is input into the power transmission system, and calculates the torque command value based on the basic torque command value and the disturbance torque. The relative degree of the disturbance observer filter is set so that the relative degree of the transfer function becomes 1 or more.
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公开(公告)号：US20150214867A1
公开(公告)日：2015-07-30
申请号：US14428671
申请日：2013-09-20
摘要： An inverter control device includes an inverter; a command value calculator; a phase compensator; an inverter controller; a d-q axes non-interference voltage command value calculator for calculating a d-q axes non-interference voltage command value to cancel out interference voltages and for outputting the d-q axes non-interference voltage command value to the command value calculator; and a reverse phase. The phase compensator calculates the amount of phase lead based on the rotation speed and a phase compensation time set in order to obtain a predetermined phase margin, and compensates for a phase based on characteristics inherent in the motor, by the amount of phase lead. The reverse phase compensator compensates for a phase of the d-q axes non-interference voltage command value by the same amount of compensation as the amount of phase lead in the opposite direction to the phase compensated for by the phase compensator.
摘要翻译： 逆变器控制装置包括逆变器; 命令值计算器 相位补偿器 逆变器控制器; d-q轴非干扰电压指令值计算器，用于计算d-q轴非干扰电压指令值，以消除干扰电压并将d-q轴非干扰电压指令值输出到指令值计算器; 和反相。 相位补偿器基于旋转速度和设定的相位补偿时间来计算相位超前量，以便获得预定的相位裕度，并且基于电机固有的特性补偿相位相位的相位。 反相补偿器通过与相位补偿器补偿的相位相反方向的相位引导量相同的补偿量来补偿d-q轴非干涉电压指令值的相位。
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公开(公告)号：US20230327592A1
公开(公告)日：2023-10-12
申请号：US18043414
申请日：2020-08-28
发明人： Tetsuro Kojima , Kengo Fujiwara
摘要： An electric motor control method for controlling an electric motor by voltage phase control performed based on a voltage norm command value representing a magnitude of a voltage to be supplied to the electric motor and a voltage phase command value representing a phase of the voltage. The method including: acquiring a required time required for calculating a final command value of a voltage applied to the electric motor by the voltage phase control according to a command value calculation model for calculation by using a rotation speed parameter related to a rotation speed of the electric motor; detecting the rotation speed parameter; changing the detected rotation speed parameter based on the required time; and calculating the final command value by using the changed rotation speed parameter according to the command value calculation model.
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公开(公告)号：US09252689B2
公开(公告)日：2016-02-02
申请号：US14428091
申请日：2013-08-12
摘要： A motor control device includes a switching element that controls a motor, a current control part that outputs a PWM signal for driving the switching element, and a setting part that sets a carrier frequency of the PWM signal. Further, a motor control part includes a torque ripple compensation part that sets a torque ripple compensation value based on a motor torque command value, the carrier frequency, and a rotation state of the motor. The current control part outputs the PWM signal based on the motor torque command value and the torque ripple compensation value.
摘要翻译： 电动机控制装置包括控制电动机的开关元件，输出用于驱动开关元件的PWM信号的电流控制部以及设定PWM信号的载波频率的设定部。 此外，电动机控制部包括基于电动机转矩指令值，载波频率和电动机的转动状态来设定转矩脉动补偿值的转矩脉动补偿部。 电流控制部分根据电机转矩指令值和转矩脉动补偿值输出PWM信号。
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公开(公告)号：US11146196B2
公开(公告)日：2021-10-12
申请号：US16979667
申请日：2018-03-16
摘要： An electric machine control method includes: calculating a voltage command value based on a torque command value to an electric machine; calculating a modulation rate based on a power-supply voltage and the voltage command value; calculating a compensation gain in accordance with the modulation rate, the compensation gain being used to linearize a relationship between a magnitude of the voltage command value and a magnitude of a fundamental wave component of an output voltage to the electric machine; calculating a compensated voltage command value based on the voltage command value and the compensation gain; controlling the output voltage to the electric machine based on the compensated voltage command value; and limiting the compensation gain to be equal to or less than a predetermined upper limit.
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公开(公告)号：US10972020B2
公开(公告)日：2021-04-06
申请号：US16618002
申请日：2017-06-01
发明人： Akira Sawada , Ken Itou , Kengo Fujiwara
摘要： The control method for an electric vehicle sets a motor torque command value based on vehicle information and controls torque of a first motor connected to a first drive wheel which is one of a front drive wheel and a rear drive wheel. The control method for an electric vehicle calculates a first torque command value by a feedforward computation based on the motor torque command value, detects a rotation angular velocity of the first motor, and estimates a rotation angular velocity of the first motor based on the first torque command value by using a vehicle model Gp(s) that simulates a transfer characteristic from a torque input to the first drive wheel to a rotation angular velocity of the first motor.
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公开(公告)号：US20200259431A1
公开(公告)日：2020-08-13
申请号：US16618002
申请日：2017-06-01
发明人： Akira Sawada , Ken Itou , Kengo Fujiwara
摘要： The control method for an electric vehicle sets a motor torque command value based on vehicle information and controls torque of a first motor connected to a first drive wheel which is one of a front drive wheel and a rear drive wheel. The control method for an electric vehicle calculates a first torque command value by a feedforward computation based on the motor torque command value, detects a rotation angular velocity of the first motor, and estimates a rotation angular velocity of the first motor based on the first torque command value by using a vehicle model Gp(s) that simulates a transfer characteristic from a torque input to the first drive wheel to a rotation angular velocity of the first motor.
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公开(公告)号：US09209722B2
公开(公告)日：2015-12-08
申请号：US14428671
申请日：2013-09-20
摘要： An inverter control device includes an inverter; a command value calculator; a phase compensator; an inverter controller; a d-q axes non-interference voltage command value calculator for calculating a d-q axes non-interference voltage command value to cancel out interference voltages and for outputting the d-q axes non-interference voltage command value to the command value calculator; and a reverse phase. The phase compensator calculates the amount of phase lead based on the rotation speed and a phase compensation time set in order to obtain a predetermined phase margin, and compensates for a phase based on characteristics inherent in the motor, by the amount of phase lead. The reverse phase compensator compensates for a phase of the d-q axes non-interference voltage command value by the same amount of compensation as the amount of phase lead in the opposite direction to the phase compensated for by the phase compensator.
摘要翻译： 逆变器控制装置包括逆变器; 命令值计算器 相位补偿器 逆变器控制器; d-q轴非干扰电压指令值计算器，用于计算d-q轴非干扰电压指令值，以消除干扰电压并将d-q轴非干扰电压指令值输出到指令值计算器; 和反相。 相位补偿器基于旋转速度和设定的相位补偿时间来计算相位超前量，以便获得预定的相位裕度，并且基于电机固有的特性补偿相位相位的相位。 反相补偿器通过与相位补偿器补偿的相位相反方向的相位引导量相同的补偿量来补偿d-q轴非干涉电压指令值的相位。
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