-
公开(公告)号：US20230327584A1
公开(公告)日：2023-10-12
申请号：US18156678
申请日：2023-01-19
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU , Yasuhiro NAKAI
CPC classification number: H02P5/50 , B64D27/24 , B60L3/12 , B60L50/60 , B60L15/2045 , B64D33/08 , B60L2200/10 , B60L2240/50
Abstract: An electric movable body includes a plurality of motors and a plurality of batteries, among which the motors and the batteries are connected such that each of the batteries supplies electric power to a motor set driving separate output shafts. When an abnormal motor that has been determined as abnormal is in a drive state, by switching the abnormal motor to a stop state, and switching one of the motors driving the output shaft driven by the abnormal motor and in the stop state to the drive state, the electric movable body assigns the drive state or the stop state to a motor set including the abnormal motor and to a motor set including the switched motor, for driving each of the output shafts by at least one motor and for supplying electric power from each of the batteries to at least one motor.
-
公开(公告)号：US20190131893A1
公开(公告)日：2019-05-02
申请号：US16095511
申请日：2017-04-20
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU , Akira KATO , Takashi SENDA
Abstract: A system includes a rotary electric machine, wiring, a battery that is connected to the rotary electric machine by the wiring harness, and an upper limit value setting section which sets an output upper limit value that is an upper limit of an output command of the rotary electric machine. A control apparatus which controls the rotary electric machine is provided with a temperature acquisition section which acquires the temperature of at least one of the battery and the wiring, an allowable output value calculation section which calculates an allowable output value that is an upper limit allowed for an output command of the rotary electric machine, based on the temperature that is acquired by the temperature acquisition section, and a transmitting section which transmits the allowable output value calculated by the allowable value calculation section to the upper limit value setting section.
-
公开(公告)号：US20230155524A1
公开(公告)日：2023-05-18
申请号：US18156742
申请日：2023-01-19
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU
CPC classification number: H02P5/50 , B64D27/24 , B60L3/0061 , B60L50/60 , B64F5/60 , B64D33/08 , B60L58/18 , B60L2200/10
Abstract: An electric movable body includes an output shaft and multiple motors that drive the output shaft. The electric movable body performs a double drive control to assign a drive state to at least two of the motors, performs, when the double drive control is performed and on determination that one of the motors is abnormal, a single drive control to assign the drive state to only one of the motors and to assign a stop state to another of the motors, and identifies, when the single drive control is performed, a drive motor, to which the drive state is assigned and which is abnormal, based on a predetermined state quantity correlated with a drive state of the drive motor.
-
公开(公告)号：US20250066017A1
公开(公告)日：2025-02-27
申请号：US18944671
申请日：2024-11-12
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU , Mariko HASHIMOTO , Hideaki SUZUKI , Yuichi TAKEMURA
IPC: B64C29/00 , H02P5/51 , H02P29/028
Abstract: An EPU includes a first DS and a second DS. The first DS includes a first motor and a first inverter control unit. The second DS includes a second motor and a second inverter control unit. The first motor and the second motor are connected to a propeller via an EPU shaft. The EPU shaft drives and rotates a propeller according to outputs of the motor. The first inverter control unit controls the first motor so that the output of the first motor and the output of the second motor become a same. The second inverter control unit controls the second motor so that the output of the first motor and the output of the second motor become same as each other.
-
公开(公告)号：US20170294854A1
公开(公告)日：2017-10-12
申请号：US15483229
申请日：2017-04-10
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA , Shinsuke KAWAZU
CPC classification number: H02P3/08 , B60K6/26 , B60K2006/268 , B60Y2200/92 , B60Y2300/192 , B60Y2400/60 , B60Y2400/61 , F02N11/006 , F02N11/04 , F02N11/0814 , F02N11/0862 , F02N11/10 , F02N11/101 , F02N2011/0896 , F02N2200/063 , F02N2250/02 , F02N2300/2011 , H02H1/00 , H02P29/024 , Y10S903/906
Abstract: A control apparatus includes a first determination section determining whether a power-supply voltage has decreased below a first threshold value, an interruption section interrupting a current flow to an inverter if the voltage has decreased below the first threshold value, a second determination section that determining whether the power-supply voltage has increased above a second threshold value, an interruption releasing section releasing the interruption based on the fact that the voltage has increased above the second threshold value, a count section counting the number of interruptions, a limiting section determining whether the decrease in the power-supply voltage is caused by a first factor of an electric rotating machine or a second factor, and limits the counting if the decrease in the power-supply voltage is caused by the second factor, and a third determination section determining whether the interruption is allowed to be released based on the number of interruptions.
-
Patent Agency Ranking
公开(公告)号：US20190135114A1
公开(公告)日：2019-05-09
申请号：US16095395
申请日：2017-04-20
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU , Akira KATO , Takashi SENDA
Abstract: A system includes a rotary electric machine, wiring, a battery that is connected to the rotary electric machine by the wiring, and an upper limit value setting section which sets an output upper limit value that is an upper limit of an output command for the rotary electric machine. A control apparatus which controls the rotary electric machine is provided with a temperature acquisition section which acquires the temperature of at least one of the battery and the wiring, an allowable output value calculation section which calculates an allowable output value that is the upper limit allowed for the output command of the rotary electric machine, based on the temperature that is acquired by the temperature acquisition section, and a transmitting section which transmits the allowable output value calculated by the allowable value calculation section to the upper limit value setting section.
-
公开(公告)号：US20140107903A1
公开(公告)日：2014-04-17
申请号：US14048638
申请日：2013-10-08
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU , Yoshinori YAMAGUCHI
IPC: F02D31/00
CPC classification number: F02D31/001 , F02D41/0097 , F02D41/042 , F02D41/065 , F02D2041/0095 , F02D2200/101 , F02D2250/06 , F02N11/0844 , F02N11/0855 , F02N11/101 , F02N2200/022 , F02N2250/04 , F02N2300/2006 , Y02T10/48
Abstract: An engine speed predicting system for a vehicle includes a first calculator, a second calculator, and a switch which may be realized by software. The first calculator calculates a predicted speed of an engine of the vehicle during forward rotation of the engine when speed of the engine is decreasing after fuel stops being burned in the engine. The second calculator calculates a predicted speed of the engine during reverse rotation of the output shaft of the engine. The switch serves to select one of the first calculator and the second calculator which is to be used in calculating the predicted speed of the engine depending upon whether the predicted speed lies during the forward rotation or during the reverse rotation of the output shaft of the engine. This ensures the accuracy in predicting the speed of the engine regardless of the direction of rotation of the engine.
Abstract translation: 用于车辆的发动机速度预测系统包括可以由软件实现的第一计算器，第二计算器和开关。 第一计算器计算发动机正转期间车辆的发动机的预测速度，其中在发动机燃料停止燃烧之后发动机的速度降低。 第二计算器计算发动机的输出轴的反向旋转期间的发动机的预测速度。 该开关用于选择第一计算器和第二计算器中的一个，该计算器和第二计算器将用于计算发动机的预测速度，这取决于预测速度是在正向旋转期间还是在发动机的输出轴的反向旋转期间 。 这确保了无论发动机的旋转方向如何，预测发动机的速度的准确性。
-
公开(公告)号：US20240367808A1
公开(公告)日：2024-11-07
申请号：US18776912
申请日：2024-07-18
Applicant: DENSO CORPORATION
Inventor： Yuichi TAKEMURA , Keita FUJII , Masato FUKUSHI , Shinsuke KAWAZU
Abstract: In a control device including a control unit that controls an EPU for powering a rotor included in an electric aircraft, the EPU includes a motor, an inverter, a control circuit, and a first sensor that detects an operation-related value. If there is no a sudden change in the operation-related value detected by the first sensor, the control unit controls the EPU based on the operation-related value detected by the first sensor. When the sudden change occurs, the control unit stops using the operation-related value detected by the first sensor to control the EPU. After the occurrence of the sudden change, when the sudden change ends before a predetermined period elapses, the control unit resumes using the operation-related value detected by the first sensor to control the EPU, and when the sudden change has not ended, the control unit continues the stoppage.
-
公开(公告)号：US20190173412A1
公开(公告)日：2019-06-06
申请号：US16324799
申请日：2017-08-03
Applicant: DENSO CORPORATION
Inventor： Shinsuke KAWAZU
IPC: H02P29/032
Abstract: An abnormality diagnosis apparatus performs an abnormality diagnosis of a system equipped with a rotary electric machine (21). The abnormality diagnosis apparatus includes: an abnormality detection section that detects an abnormality of the system; a fail-safe processing section that, when the abnormality detection section detects an abnormality, performs a fail-safe process for controlling the rotary electric machine on a safe side; an abnormality signal generation section that, when the system is in a normal state, generates a false abnormality signal assuming that an abnormality that requires the fail-safe process has occurred; and an operation check section that performs, on the basis of the false abnormality signal generated by the abnormality signal generation section, an operation check for checking whether the fail-safe process operates normally.
-
公开(公告)号：US20160305355A1
公开(公告)日：2016-10-20
申请号：US15097606
申请日：2016-04-13
Applicant: DENSO CORPORATION
Inventor： Tomohiro TAKIZAWA , Shinsuke KAWAZU
CPC classification number: F02D41/0097 , F02N11/0844 , F02N11/0851 , F02N11/087 , F02N11/101 , F02N11/105 , F02N15/067 , F02N19/005 , F02N2200/022 , F02N2250/04 , Y02T10/48
Abstract: An engine control apparatus predicts the speed of an engine in a normal rotation range as a function of a loss energy in an engine rotation pulsating period and also predicts the speed of the engine in a reverse rotation range as a function of a pumping loss component and a loss energy which is derived by reversing the sign of a value of a friction component that is a portion of the loss energy in the normal rotation range and arises from mechanical friction to which the piston is subjected during stroke thereof. The pumping loss component is an energy loss occurring in the intake stroke of the engine. This calculation enhances the accuracy in predicting a future engine speed between start of a drop in speed of the engine resulting from stop of combustion of fuel and stop of rotation of the engine.
Abstract translation: 发动机控制装置将发动机在正常旋转范围内的速度作为发动机旋转脉动时段中的损耗能量的函数来预测，并且还根据泵送损耗分量来预测发动机在反向旋转范围内的速度， 通过使作为正常旋转范围内的损失能量的一部分的摩擦分量的值的符号反转而产生的损失能量，并且来自活塞在其冲程期间经受的机械摩擦。 泵送损耗分量是在发动机的进气冲程中发生的能量损失。 该计算提高了在停止燃料燃烧和停止发动机旋转引起的发动机速度下降之间的未来发动机转速预测的精度。
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.018 seconds)
