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公开(公告)号：US20190305713A1
公开(公告)日：2019-10-03
申请号：US16346749
申请日：2016-11-01
发明人： Ken Itou , Kohei Murota , Tomoaki Mori , Naoki Takahashi , Hiromichi Kawamura
摘要： A method of controlling a motor having windings of a plurality of phases includes an estimation step of calculating a current vector norm from d-axis current and q-axis current flowing in the motor, calculating power loss from the current vector norm and the entire heat resistance of the motor, and estimating the maximum temperature of the windings of the plurality of phases based on the power loss and a transfer function having first or higher-order transfer characteristics, in the case where the motor is in a low rotation state, and a limiting step of limiting input power based on the maximum temperature estimated in the estimation step.
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公开(公告)号：US10195945B2
公开(公告)日：2019-02-05
申请号：US15747996
申请日：2015-07-29
发明人： Yoichi Hirakawa , Ken Itou , Yuji Katsumata , Hiroyuki Komatsu
摘要： A control device is provided for an electric vehicle that generates a braking force corresponding to an opening degree of an accelerator pedal to decelerate the electric vehicle. The control device for the electric vehicle includes a motor configured to generate a driving force or a regenerative braking force of the electric vehicle, a friction braking unit configured to generate a friction braking force, and a controller configured to control at least one of the motor and the friction braking unit corresponding to the opening degree of the accelerator pedal. The controller determines whether all of regenerative electric power generated by the motor is consumed in the electric vehicle when the motor is caused to perform a regenerative braking. The controller causes the motor to perform the regenerative braking when the regenerative electric power is determined to be consumed in the electric vehicle.
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3.发明授权公开(公告)号：US09315114B2
公开(公告)日：2016-04-19
申请号：US14394957
申请日：2013-03-07
CPC分类号： B60L15/06 , B60L3/0023 , B60L7/14 , B60L11/1803 , B60L15/20 , B60L15/2009 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/429 , B60L2270/145 , H02P6/08 , Y02T10/642 , Y02T10/644 , Y02T10/7005 , Y02T10/7275
摘要： A device for controlling an electric vehicle includes: a feedforward computation unit that is configured to input a motor torque instruction value and compute a first torque target value by feedforward computation; and a motor torque control unit that is configured to control a motor torque according to the first torque target value. The feedforward computation unit includes: a vehicle model which is configured to input the motor torque instruction value to model a characteristic from the motor torque to a drive shaft torsional angular velocity; and a drive shaft torsional angular velocity feedback model which is configured to feed back the drive shaft torsional angular velocity output from the vehicle model to the motor torque instruction value to compute the first torque target value.
摘要翻译： 一种用于控制电动车辆的装置，包括：前馈计算单元，被配置为输入电动机转矩指令值，并通过前馈计算来计算第一转矩目标值; 以及电动机转矩控制单元，被配置为根据第一转矩目标值来控制电动机转矩。 前馈计算单元包括：车辆模型，其被配置为输入马达转矩指令值以将特性从马达转矩建模成驱动轴扭转角速度; 以及驱动轴扭转角速度反馈模型，其被配置为将从车辆模型输出的驱动轴扭转角速度反馈到电动机转矩指令值，以计算第一转矩目标值。
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公开(公告)号：US10715077B2
公开(公告)日：2020-07-14
申请号：US16346749
申请日：2016-11-01
发明人： Ken Itou , Kohei Murota , Tomoaki Mori , Naoki Takahashi , Hiromichi Kawamura
摘要： A method of controlling a motor having windings of a plurality of phases includes an estimation step of calculating a current vector norm from d-axis current and q-axis current flowing in the motor, calculating power loss from the current vector norm and the entire heat resistance of the motor, and estimating the maximum temperature of the windings of the plurality of phases based on the power loss and a transfer function having first or higher-order transfer characteristics, in the case where the motor is in a low rotation state, and a limiting step of limiting input power based on the maximum temperature estimated in the estimation step.
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5.发明授权Vehicle vibration suppression control device and vehicle vibration suppression control method 有权车辆振动抑制控制装置和车辆振动抑制控制方法公开(公告)号：US09150117B2
公开(公告)日：2015-10-06
申请号：US14394633
申请日：2013-03-07
发明人： Ken Itou
CPC分类号： B60L15/20 , B60L3/0023 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/48 , B60L2240/80 , B60L2260/44 , B60L2270/145 , F16F15/002 , H02P6/10 , H02P23/04 , H02P29/50 , Y02T10/642 , Y02T10/644 , Y02T10/645 , Y02T10/7275
摘要： A vehicle vibration suppression control device includes: a first torque target value calculation unit that inputs a motor torque instruction value and that uses a previously modeled transmission characteristic of the vehicle to calculate a first torque target value; a second torque target value calculation unit that includes a filter having a characteristic of a model H(s)/Gp(s) formed with a model Gp(s) of a transmission characteristic of a torque input to the vehicle and a motor angular velocity and a bandpass filter H(s) in which a frequency in the vicinity of a torsional vibration frequency in the vehicle is a center frequency, that inputs a deviation between a detection value of the vehicle state amount and an estimation value of the vehicle state amount and that calculates a second torque target value; and a motor torque control unit that controls a motor torque according to a final torque target value obtained by adding the first torque target value and the second torque target value. The vehicle state amount is estimated based on the first torque target value on which the lag processing has been performed and the second torque target value.
摘要翻译： 车辆振动抑制控制装置包括：第一转矩目标值计算单元，其输入电动机转矩指令值，并且使用车辆的先前建模的变速器特性来计算第一转矩目标值; 第二转矩目标值计算单元，其包括具有由输入到车辆的转矩的传递特性的模型Gp（s）形成的型号H（s）/ Gp（s）的特性的滤波器和马达角速度 以及车辆的扭转频率附近的频率为中心频率的带通滤波器H，其输入车辆状态量的检测值与车辆状态量的估计值之间的偏差 并计算第二转矩目标值; 以及马达转矩控制单元，其根据通过将第一转矩目标值和第二转矩目标值相加得到的最终转矩目标值来控制电动机转矩。 基于执行了滞后处理的第一转矩目标值和第二转矩目标值，推定车辆状态量。
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6.发明申请DEVICE FOR CONTROLLING ELECTRIC VEHICLE AND METHOD OF CONTROLLING ELECTRIC VEHICLE 有权用于控制电动车辆的装置和控制电动车辆的方法公开(公告)号：US20150112532A1
公开(公告)日：2015-04-23
申请号：US14394957
申请日：2013-03-07
CPC分类号： B60L15/06 , B60L3/0023 , B60L7/14 , B60L11/1803 , B60L15/20 , B60L15/2009 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/429 , B60L2270/145 , H02P6/08 , Y02T10/642 , Y02T10/644 , Y02T10/7005 , Y02T10/7275
摘要： A device for controlling an electric vehicle includes: a feedforward computation unit that is configured to input a motor torque instruction value and compute a first torque target value by feedforward computation; and a motor torque control unit that is configured to control a motor torque according to the first torque target value. The feedforward computation unit includes: a vehicle model which is configured to input the motor torque instruction value to model a characteristic from the motor torque to a drive shaft torsional angular velocity; and a drive shaft torsional angular velocity feedback model which is configured to feed back the drive shaft torsional angular velocity output from the vehicle model to the motor torque instruction value to compute the first torque target value.
摘要翻译： 一种用于控制电动车辆的装置，包括：前馈计算单元，被配置为输入电动机转矩指令值，并通过前馈计算来计算第一转矩目标值; 以及电动机转矩控制单元，被配置为根据第一转矩目标值来控制电动机转矩。 前馈计算单元包括：车辆模型，其被配置为输入马达转矩指令值以将特性从马达转矩建模成驱动轴扭转角速度; 以及驱动轴扭转角速度反馈模型，其被配置为将从车辆模型输出的驱动轴扭转角速度反馈到电动机转矩指令值，以计算第一转矩目标值。
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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：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：US10328803B2
公开(公告)日：2019-06-25
申请号：US15754755
申请日：2016-08-10
发明人： Hiroyuki Komatsu , Ken Itou , Takashi Nakajima , Yuuji Katsumata , Akira Sawada
摘要： the control device for electric vehicle in the first embodiment, in the electric vehicle including the motor that functions as the traveling driving source and provides a regenerative braking force to the vehicle, and the friction brakes that provide the friction braking force to the vehicle, detects the motor rotation speed proportionate to a running speed of this electric vehicle, estimates the disturbance torque that acts on the motor, and performs the control such that the motor torque command value converges to the disturbance torque estimated value as the motor rotation speed decreases. Then, when the motor rotation speed becomes almost 0, the control device performs the control such that the friction-braking-amount command value with respect to the friction brakes converges to a value determined on the basis of the disturbance torque estimated value, and causes the motor torque command value to converge to almost 0.
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