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1. 发明授权

US09837888B2 Boost control apparatus based on output current change amount 有权
公开(公告)号：US09837888B2
公开(公告)日：2017-12-05
申请号：US15041260
申请日：2016-02-11
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Masaki Okamura , Naoyoshi Takamatsu
IPC分类号： H02M1/42 , H02M1/14 , H02M3/158 , H02M1/00
CPC分类号： H02M1/42 , H02M1/14 , H02M3/158 , H02M3/1582 , H02M2001/0003
摘要： A boost control apparatus is provided with a current value change amount detecting device configured to detect a change amount of output current that flows through the reactor in a first predetermined period during one-side element control for driving only one of a first switching element and a second switching element. A determining device is provided that is configured to determine that the output current is near zero if the change amount is less than a predetermined threshold value. A controlling device is also provided that is configured (i) to perform first duty control by a first control parameter if the output current is not near zero, and (ii) to perform second duty control by a second control parameter, which is different from the first control parameter, if the output current is near zero.

2. 发明授权

US10363831B2 Electrical power system 有权
公开(公告)号：US10363831B2
公开(公告)日：2019-07-30
申请号：US15385382
申请日：2016-12-20
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Masaki Okamura
IPC分类号： B60L1/00 , B60L3/00 , H02G3/00 , B60L15/00 , H02M7/44 , B60L15/20 , B60L50/51
摘要： A power system has a first converter; a second converter; a first controller for generating a first command and a second command, controlling the first converter on the basis of the first command, and transmitting the second command to a second controller; and the second controller for controlling the second converter on the basis of the second command. The first controller adjusts the first command to cancel at least one of shortage and excess of second current by first current. The second controller controls the second converter on the basis of the second command when the first command is smaller than first upper limit. The second controller controls the second converter on the basis of second upper limit when the first command reaches the first upper limit.

3. 发明授权

US10250171B2 Electric motor control apparatus and electric motor control method 有权
公开(公告)号：US10250171B2
公开(公告)日：2019-04-02
申请号：US14917810
申请日：2014-09-10
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Masaki Okamura , Naoyoshi Takamatsu
IPC分类号： H02P6/14 , H02P6/10 , H02P27/06 , H02P6/08 , H02P27/08
摘要： An electric motor control apparatus controls an electric motor system that includes a power converter including switching elements and a three-phase alternating-current motor. The electric motor control apparatus includes generating devices for generating modulation signals by respectively adding corresponding triple harmonic signals to phase voltage command signals and a control device for controlling switching elements on the basis of a magnitude relation between each of the modulation signals and a carrier signal. Each of the triple harmonic signals includes a signal component that increases the absolute value of a peak value of a signal level of the corresponding modulation signal above the absolute value of a peak value of a signal level of the carrier signal in a corresponding one of phases.

4. 发明授权

US09825529B2 Voltage conversion control apparatus for a boost converter configured to boost or step down output voltage of an electricity storage apparatus 有权
公开(公告)号：US09825529B2
公开(公告)日：2017-11-21
申请号：US14435002
申请日：2013-09-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Naoyoshi Takamatsu , Masaki Okamura , Toshifumi Yamakawa
IPC分类号： H02M3/157 , B60L9/18 , B60L11/14 , H02M3/156 , H02M3/155
CPC分类号： H02M3/157 , B60L9/18 , B60L11/14 , B60L2210/14 , B60L2240/525 , B60L2240/526 , B60L2240/527 , B60L2240/529 , H02M3/156 , H02M2003/1552 , Y02T10/70 , Y02T10/7077 , Y02T10/7225
摘要： A voltage conversion control apparatus is a voltage conversion control apparatus which controls a voltage converter having an upper switching element and a lower switching element, and has a calculating device which calculates duty ratio such that output current of an electricity storage apparatus reaches target value and the duty ratio is within predetermined allowable range; a limit relaxing device which relaxes at least one of upper limit value and lower limit value of the allowable range on the basis of magnitude relationship between predetermined threshold value and current deviation which is obtained by subtracting the output current from the target value; and a controlling device which controls the upper switching element and the lower switching element to perform a switching control on the basis of the duty ratio which is calculated by the calculating device.

5. 发明授权

US10103664B2 Vehicle control apparatus 有权
公开(公告)号：US10103664B2
公开(公告)日：2018-10-16
申请号：US15720638
申请日：2017-09-29
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Shintaro Tsujii , Masaki Okamura
IPC分类号： G05B11/28 , H02P9/04 , H02P29/64
摘要： A vehicle control apparatus is provided with: a modulator configured to generate modulation signals; a first corrector configured to perform a first correction process in which a center value of the modulation signals is corrected to reduce a loss in the inverter; a second corrector configured to perform a second correction process in which an amplitude shift and a phase shift of the third harmonic signal with respect to the voltage command signals are reduced; and a controller configured (i) to control the first corrector to perform the first correction process if the DC voltage is greater than or equal to first predetermined voltage and (ii) to control the second corrector to perform the second correction process if the DC voltage is less than the first predetermined voltage, when a number of revolutions of the AC motor is less than a predetermined number of revolutions.

6. 发明授权

US09979344B2 Controller for electric motor system 有权
公开(公告)号：US09979344B2
公开(公告)日：2018-05-22
申请号：US15326211
申请日：2015-07-13
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Masaki Okamura , Naoyoshi Takamatsu
IPC分类号： H02P7/14 , H02P27/08 , H02M7/5387
CPC分类号： H02P27/08 , H02M7/53871 , H02P27/085
摘要： A controller for an electric motor system is provided. The electric motor system includes a DC power supply, a power converter, a smoothing capacitor, a three-phase AC motor, and a current sensor. The controller includes an electronic control unit. The electronic control unit is configured to control the power converter such that an inter-terminal voltage of the smoothing capacitor matches a first reference value. The first reference value is a value which is determined as the inter-terminal voltage of the smoothing capacitor when a phase current is equal to a second reference value. The electronic control unit is configured to correct a detection value of the current sensor so as to decrease a difference between the detection value and the second reference value when the inter-terminal voltage matches the first reference value and the detection value does not match the second reference value.

7. 发明授权

US10164551B2 Boost control apparatus based on output current change rate 有权
公开(公告)号：US10164551B2
公开(公告)日：2018-12-25
申请号：US15041415
申请日：2016-02-11
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Masaki Okamura , Naoyoshi Takamatsu
IPC分类号： H02M1/00 , H02M3/158 , H02M1/42 , H02M7/537 , H02M7/493
摘要： A boost control apparatus is provided with: a controlling device configured (i) to perform first duty control by a first control parameter if output current that flows through a reactor is not near zero, and (ii) to perform second duty control by a second control parameter if the output current is near zero, during one-side element control for driving only one of a first switching element and a second switching element, each of which is connected to a reactor in series. A rate calculating device is provided that is configured to calculate a change rate of the output current to a change amount of a duty value in the first duty control and the second duty control. A control determining device is also provided that is configured to control the controlling device to perform the second duty control regardless of the output current, if the change rate is less than a predetermined value.

8. 发明授权

US10069396B2 Electrical power system 有权
公开(公告)号：US10069396B2
公开(公告)日：2018-09-04
申请号：US15837474
申请日：2017-12-11
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kosuke Hirano , Masaki Okamura , Toshifumi Yamakawa , Jun Fujita , Ryo Kamikawa
IPC分类号： H02M7/68 , H02M1/00 , H02M3/158 , H02M7/42 , B60L11/18
CPC分类号： H02M1/00 , B60L50/51 , H02M3/158 , H02M3/1582 , H02M3/1584 , H02M7/42 , H02M2001/0054 , Y02B70/1491
摘要： A power system has a first control apparatus configured to generating a first command signal and a second command signal, to control the first converter on the basis of the first command signal, and to transmit the second command signal to a second control apparatus and the second control apparatus configured to control the second converter on the basis of the received second command signal. When it is requested that a state of each of the first and second converters is changed from a first state to a second state, the first control apparatus generates the first and second command signals so that the state of the second converter is changed to a third state in which both of the upper arm and the lower arm keep being in the OFF state, then the state of the first converter is changed from the first state to the second state, and then the state of the second converter is changed from the third state to the second state.

9. 发明授权

US09553541B2 Electric motor control apparatus 有权
标题翻译：电动机控制装置
公开(公告)号：US09553541B2
公开(公告)日：2017-01-24
申请号：US14913203
申请日：2013-11-06
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshifumi Yamakawa , Masaki Okamura , Naoyoshi Takamatsu
IPC分类号： H02P27/04 , H02P27/08 , H02M1/15 , H02M7/5387 , H02P27/06
CPC分类号： H02P27/085 , H02M1/15 , H02M7/53875 , H02P27/06
摘要： The purpose is to suppress ripple of voltage between terminals of smoothing condenser. Electric motor control apparatus is electric motor control apparatus that controls electric motor system having electrical power converter, smoothing condenser and three-phase AC electric motor, and has generating device that generates modulation signal by adding third harmonic signal to phase voltage command signal; controlling device that controls operation of electrical power converter by using modulation signal; and adjusting device that adjusts amplitude of third harmonic signal, adjusting device adjusts amplitude of third harmonic signal so that peak value of voltage between terminals of smoothing condenser in the case where amplitude of third harmonic signal is adjusted is smaller than peak value of voltage between terminals in the case where amplitude of third harmonic signal is not adjusted.
摘要翻译：目的是抑制平滑电容器端子之间的电压纹波。电动机控制装置是控制具有电力转换器，平滑电容器和三相交流电动机的电动机系统的电动机控制装置，具有通过将三次谐波信号与相电压指令信号相加而产生调制信号的发电装置; 控制装置，通过使用调制信号来控制电力转换器的运行; 调整三次谐波信号的幅度的调整装置，调整三次谐波信号的振幅，使得在调整三次谐波信号的振幅的情况下，平滑电容器的端子之间的电压峰值小于端子之间的电压的峰值在没有调整三次谐波信号的振幅的情况下。

10. 发明申请

US20150288281A1 VOLTAGE CONVERSION CONTROL APPARATUS 有权
标题翻译：电压转换控制装置
公开(公告)号：US20150288281A1
公开(公告)日：2015-10-08
申请号：US14435002
申请日：2013-09-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Naoyoshi Takamatsu , Masaki Okamura , Toshifumi Yamakawa
IPC分类号： H02M3/157
CPC分类号： H02M3/157 , B60L9/18 , B60L11/14 , B60L2210/14 , B60L2240/525 , B60L2240/526 , B60L2240/527 , B60L2240/529 , H02M3/156 , H02M2003/1552 , Y02T10/70 , Y02T10/7077 , Y02T10/7225
摘要： A voltage conversion control apparatus is a voltage conversion control apparatus which controls a voltage converter having an upper switching element and a lower switching element, and has a calculating device which calculates duty ratio such that output current of an electricity storage apparatus reaches target value and the duty ratio is within predetermined allowable range; a limit relaxing device which relaxes at least one of upper limit value and lower limit value of the allowable range on the basis of magnitude relationship between predetermined threshold value and current deviation which is obtained by subtracting the output current from the target value; and a controlling device which controls the upper switching element and the lower switching element to perform a switching control on the basis of the duty ratio which is calculated by the calculating device.
摘要翻译：电压转换控制装置是控制具有上开关元件和下开关元件的电压转换器的电压转换控制装置，具有计算装置，该计算装置计算蓄电装置的输出电流达到目标值的占空比，占空比在预定的允许范围内; 限制放松装置，其基于通过从目标值减去输出电流而获得的预定阈值和电流偏差之间的大小关系，使容许范围的上限值和下限值中的至少一个松弛; 以及控制装置，其控制上开关元件和下开关元件，以基于由计算装置计算的占空比来进行开关控制。

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