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公开(公告)号：US10396698B2
公开(公告)日：2019-08-27
申请号：US15947963
申请日：2018-04-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toshihiro Yamamoto , Kenji Yamada
Abstract: First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing switching of the plurality of switching elements. Second pulse width modulation control is a control of generating a second pulse width modulation signal for the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses per unit period of an electrical angle of the motor, and performing switching of the plurality of switching elements. An electronic control unit is configured to switch the plurality of switching elements between the first pulse width modulation control and the second pulse width modulation control at irregular time intervals.
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公开(公告)号：US10374539B2
公开(公告)日：2019-08-06
申请号：US15907596
申请日：2018-02-28
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toshihiro Yamamoto , Kenji Yamada
IPC: H02P21/00 , H02P21/13 , B60L15/00 , B60L15/08 , H02P21/22 , H02P27/12 , H02P21/14 , H02P29/50 , B60L50/50
Abstract: A driving device includes a motor, an inverter configured to drive the motor by switching a plurality of switching elements, and an electronic control unit configured to set voltage commands of phases according to temporary voltage commands of the phases based on a torque command of the motor and perform switching control of the switching elements by generating PWM signals for the switching elements by using the voltage commands of the phases and a carrier voltage. The electronic control unit is configured to switch a method of setting the voltage commands between a first method and a second method for each irregular time interval. The first method is a method of setting the voltage commands without superposing harmonics to the temporary voltage commands, and the second method is a method of setting the voltage commands by superposing the harmonics to the temporary voltage command.
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公开(公告)号：US20180294761A1
公开(公告)日：2018-10-11
申请号：US15947963
申请日：2018-04-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toshihiro Yamamoto , Kenji Yamada
IPC: H02P27/08 , H02P6/08 , H02M1/12 , H02M7/5395 , B60L11/18
CPC classification number: H02P27/085 , B60L15/08 , B60L50/51 , B60L2210/14 , B60L2210/40 , B60L2240/429 , B60L2270/142 , H02M1/12 , H02M1/44 , H02M7/5395 , H02M2001/007 , H02P6/08 , H02P2201/07 , Y02T10/642 , Y02T10/7005 , Y02T10/7225 , Y02T10/7241
Abstract: First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing switching of the plurality of switching elements. Second pulse width modulation control is a control of generating a second pulse width modulation signal for the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses per unit period of an electrical angle of the motor, and performing switching of the plurality of switching elements. An electronic control unit is configured to switch the plurality of switching elements between the first pulse width modulation control and the second pulse width modulation control at irregular time intervals.
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公开(公告)号：US10084379B2
公开(公告)日：2018-09-25
申请号：US14441938
申请日：2012-11-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Okamura , Naoyoshi Takamatsu , Hideto Hanada , Kenji Yamada , Kosuke Hirano
IPC: H02M3/158 , B60L11/08 , H02M3/156 , B60L11/00 , B60L11/12 , B60L11/14 , B60L15/00 , B60L15/20 , H02M1/00
CPC classification number: H02M3/158 , B60L15/007 , B60L15/20 , B60L50/16 , B60L50/40 , B60L50/61 , B60L2210/40 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2240/443 , B60L2240/547 , B60L2240/549 , B60L2250/26 , B60L2260/26 , H02M3/156 , H02M2001/0003 , H02M2001/007 , Y02T10/6217 , Y02T10/645 , Y02T10/7022 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275
Abstract: The present invention minimizes system loss during execution of intermittent boosting. A boost converter control apparatus has: a target value setting device for setting a target value of output voltage that minimizes a loss of a power supply system including a DC power supply, a boost converter, and a loading apparatus; an intermittent controlling device for executing an intermittent process of boost control in such a manner that the output voltage is maintained in a range including the set target value; an average value calculating device for calculating an average value of the output voltage in an execution period of the intermittent process; and a target value correcting device for correcting the set target value to reduce a deviation between the calculated average value and the set target value.
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公开(公告)号：US09899916B2
公开(公告)日：2018-02-20
申请号：US14440415
申请日：2012-11-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masaki Okamura , Naoyoshi Takamatsu , Hideto Hanada , Kenji Yamada , Kosuke Hirano
CPC classification number: H02M3/157 , B60L11/005 , B60L15/007 , B60L15/20 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/547 , B60L2240/549 , B60L2260/26 , H02M3/156 , H02M2001/0032 , Y02T10/645 , Y02T10/7022 , Y02T10/72 , Y02T10/7275
Abstract: The present invention prevent a shortage of the output when an intermittent boost is executed. A control apparatus for controlling a boost converter that can boost power supply voltage by boost control has: an intermittent controlling device for executing the intermittent boosting in such a manner that output voltage is maintained in a voltage variation allowable range including a target value on the basis of the detected output voltage of the boost converter; an average value calculating device for calculating an average value of the output voltage in an execution period of the intermittent boosting; and a target value correcting device for correcting the set target value to increase it when the calculated average value is less than the target value and is less than a required voltage value of a loading apparatus.
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Patent Agency Ranking
公开(公告)号：US20170313198A1
公开(公告)日：2017-11-02
申请号：US15495266
申请日：2017-04-24
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kenji Yamada , Toshihiro Yamamoto , Masashi Mizuno
CPC classification number: B60L11/1803 , B60L3/003 , B60L11/123 , B60L11/14 , B60L2210/40 , B60L2220/14 , B60L2240/421 , B60L2240/423 , B60L2240/527 , B60L2240/529 , B60L2260/165 , H02P6/085 , H02P6/18 , Y02T10/7258
Abstract: A vehicle includes an electronic control unit. The electronic control unit is configured to perform control of an inverter by switching a plurality of controls including i) first PWM control of generating a first PWM signal of a plurality of switching elements by comparison of voltage commands of respective phases based on a torque command of a motor with a carrier voltage and switching the plurality of switching elements, and ii) second PWM control of generating a second PWM signal of the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor and switching the plurality of switching elements. The electronic control unit is configured to limit execution of the second PWM control when an abnormality occurs in the rotational position sensor.
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公开(公告)号：US10103656B2
公开(公告)日：2018-10-16
申请号：US15496236
申请日：2017-04-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toshihiro Yamamoto , Kenji Yamada
IPC: H02P6/15 , B60L11/18 , H02P6/08 , H02P27/08 , H02M7/5395
Abstract: A vehicle performs first PWM control of generating a first PWM signal of a plurality of switching elements to switch the plurality of switching elements by comparing voltage commands of phases based on a torque command with a carrier voltage when a target operating point including a rotation speed and the torque command of the motor is outside a predetermined area, and selects and performs second PWM control of generating a second PWM signal of the plurality of switching elements to switch the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor or the first PWM control when the target operating point is inside the predetermined area.
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8.发明授权公开(公告)号：US10081256B2
公开(公告)日：2018-09-25
申请号：US15495266
申请日：2017-04-24
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kenji Yamada , Toshihiro Yamamoto , Masashi Mizuno
CPC classification number: B60L50/51 , B60L3/003 , B60L50/16 , B60L50/61 , B60L2210/40 , B60L2220/14 , B60L2240/421 , B60L2240/423 , B60L2240/527 , B60L2240/529 , B60L2260/165 , H02P6/085 , H02P6/16 , H02P6/18 , H02P29/0241 , Y02T10/6217 , Y02T10/642 , Y02T10/7005 , Y02T10/7077 , Y02T10/7241 , Y02T10/7258
Abstract: A vehicle includes an electronic control unit. The electronic control unit is configured to perform control of an inverter by switching a plurality of controls including i) first PWM control of generating a first PWM signal of a plurality of switching elements by comparison of voltage commands of respective phases based on a torque command of a motor with a carrier voltage and switching the plurality of switching elements, and ii) second PWM control of generating a second PWM signal of the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor and switching the plurality of switching elements. The electronic control unit is configured to limit execution of the second PWM control when an abnormality occurs in the rotational position sensor.
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公开(公告)号：US10059209B2
公开(公告)日：2018-08-28
申请号：US14739410
申请日：2015-06-15
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Toshiya Hashimoto , Noritake Mitsutani , Kenji Yamada
CPC classification number: B60L11/126 , B60L50/16 , B60L50/62 , B60L58/12 , B60L58/20 , B60L2210/12 , B60L2210/14 , B60L2210/30 , B60L2240/36 , B60L2240/525 , B60L2240/526 , B60L2240/527 , B60L2240/547 , B60L2240/549 , B60L2260/44 , Y02T10/6217 , Y02T10/7005 , Y02T10/7022 , Y02T10/7044 , Y02T10/7066 , Y02T10/7077 , Y02T10/7225 , Y02T10/7233 , Y02T10/7241
Abstract: A converter is capable of using two power sources located on a first side by switching connection of the two power sources between series connection and parallel connection. Under certain conditions, such as when a detected atmospheric pressure is lower than a predetermined value, frequency of use of the two power sources in series connection is reduced in the converter. It is thereby possible to prevent generation of excessive voltage by the power converter.
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公开(公告)号：US20170313206A1
公开(公告)日：2017-11-02
申请号：US15495171
申请日：2017-04-24
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Toshihiro Yamamoto , Kenji Yamada
CPC classification number: B60L15/007 , B60L3/0061 , B60L11/123 , B60L11/14 , B60L11/1803 , B60L11/1861 , B60L11/1879 , B60L15/08 , B60L2210/42 , B60L2220/14 , B60L2240/423 , B60L2240/429 , B60L2250/26 , B60L2270/147 , H02P27/08
Abstract: When an absolute value of a rotation speed change rate of a motor is equal to or less than a threshold and an absolute value of a torque command change rate of the motor is equal to or less than a threshold, a switching angle is changed by cyclically changing a pulse type or the number of pulses as change in a pulse pattern. With this, respective order components of harmonics are dispersed, whereby it is possible to reduce the degree of prominence of a specific order component in harmonics relative to other order components.
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