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公开(公告)号：US11458948B2
公开(公告)日：2022-10-04
申请号：US16819950
申请日：2020-03-16
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
IPC分类号： B60W20/10 , B60W10/08 , B60W10/06 , B60W30/188
摘要： An HV-ECU performs processing including calculating requested system power, calculating requested engine power when an engine activation request has been issued, setting an operating point on a predetermined operating line, setting an upper limit value of magnitude of an amount of lowering in engine rotation speed to a first value when a vehicle is in a sport running state and when the previous operating point is within a forced induction range, setting the upper limit value to a second value when the vehicle is not in the sport running state or when the previous operating point is not within the forced induction range, correcting the operating point, and outputting an engine operation state command, a first MG torque command, and a second MG torque command.
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公开(公告)号：US20200298854A1
公开(公告)日：2020-09-24
申请号：US16809672
申请日：2020-03-05
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
IPC分类号： B60W30/188 , B60W20/10 , B60W10/06 , B60W10/08
摘要： An HV-ECU performs processing including calculating estimated engine torque based on a previous value of a time constant, setting as the time constant, a first value corresponding to a forced induction range when engine torque is determined as being in the forced induction range, setting as the time constant, a second value corresponding to a non-forced induction range when engine torque is determined as not being in the forced induction range, calculating a feedforward term Tgff, calculating a feedback term Tgfb, calculating a torque command value for a first MG, and outputting a first MG torque command.
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公开(公告)号：US09963139B2
公开(公告)日：2018-05-08
申请号：US14963882
申请日：2015-12-09
发明人： Tetsuo Hori , Shunsuke Oyama
CPC分类号： B60W20/10 , B60K6/365 , B60K6/445 , B60L11/1803 , B60W2520/10 , B60W2710/083 , B60Y2200/92 , F16H3/728 , F16H2200/2005 , F16H2200/2007 , F16H2200/2033 , F16H2200/2035 , F16H2200/2043 , Y02T10/6239 , Y02T10/7258 , Y10S903/906
摘要： A first electric motor generates torque in the case where a vehicle speed becomes lower than a specified threshold in a travel state where a second electric motor is exclusively used as a drive source among an engine, the first electric motor, and the second electric motor and during a speed reducing travel.
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公开(公告)号：US11514730B2
公开(公告)日：2022-11-29
申请号：US16797694
申请日：2020-02-21
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
IPC分类号： F02D41/00 , G07C5/08 , B60K6/26 , B60K6/365 , F02B37/18 , B60W20/10 , B60W10/06 , F02D41/22 , B60W10/08
摘要： In a hybrid vehicle, each of an engine and an MG1 is mechanically coupled to a drive wheel with a planetary gear being interposed. The planetary gear and an MG2 are configured such that motive power output from the planetary gear and motive power output from the MG2 are transmitted to the drive wheel as being combined. A controller makes WGV diagnosis for diagnosing whether or not a waste gate valve is normally controllable by issuing an instruction to a WGV actuator while the controller stops combustion in the engine and controls the MG1 and the MG2 in coordination to perform motoring of the engine during traveling of the hybrid vehicle.
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公开(公告)号：US11052901B2
公开(公告)日：2021-07-06
申请号：US16786214
申请日：2020-02-10
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
摘要： A hybrid vehicle includes an engine, a first MG, a second MG, a planetary gear mechanism, and an HV-ECU. The engine includes a supercharger and a purge device. The purge device introduces fuel vapor into an intake passage of the engine. Upon request for fuel purge, when an operating point of the engine is included in an area A, the HV-ECU controls the engine and the first MG to move the operating point to outside of the area A.
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公开(公告)号：US10189467B2
公开(公告)日：2019-01-29
申请号：US15160534
申请日：2016-05-20
发明人： Shunsuke Oyama
摘要： A control apparatus of a hybrid vehicle has an abnormal sound generation condition determination unit that determines whether or not a drive state of the hybrid vehicle satisfies an abnormal sound generation condition of a gear train, and a pressing processor that executes a pressing process to apply a pressing torque to suppress generation of abnormal sound from a first rotary electric machine to the gear train of a transmission mechanism when the abnormal sound generation condition is satisfied and to not apply the pressing torque when the abnormal sound generation condition is not satisfied. A pressing torque setting unit sets a pressing torque to be applied by the first rotary electric machine to a torque in a direction to suppress an engine cam torque that may rotate an engine output shaft during a period in which the engine is stopped.
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公开(公告)号：US11554769B2
公开(公告)日：2023-01-17
申请号：US16828278
申请日：2020-03-24
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
摘要： A vehicle includes an engine, a first MG, a planetary gear mechanism, a battery that stores power generated by the first MG and supplies the stored power to the first MG, and an HV-ECU that controls the engine and the first MG. The engine includes a turbo. A boost line is determined on a map representing a relationship between the rotation speed of the engine and torque generated by the engine, and the turbo boosts suctioned air when torque generated by the engine, as indicated by an operating point on the map, exceeds the boost line. The HV-ECU controls the engine and the first MG so that when the allowable value Wout of power output from the battery is small, the operating point exceeds the boost line at a higher rotation speed than when the allowable value Wout is large.
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公开(公告)号：US11247664B2
公开(公告)日：2022-02-15
申请号：US16819928
申请日：2020-03-16
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
摘要： An HV-ECU performs processing including controlling an engine to be in a non-forced induction operation state when an engine has been on and when an engine stop request has been issued, performing processing for stopping the engine when a predetermined first period has elapsed, restricting forced induction and output when the engine stop request has not been issued and when a current time point is immediately after start of the engine, canceling restriction when a predetermined second period has elapsed, and controlling the engine with a position on a higher rotation speed side than a current operating point along an equal power line being set as an operating point when the current time point is not immediately after start of the engine and when a negative pressure is insufficient.
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公开(公告)号：US11186270B2
公开(公告)日：2021-11-30
申请号：US16829122
申请日：2020-03-25
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
摘要： A vehicle includes an engine including a forced induction device, a knock sensor and a crank angle sensor that detect an occurrence of LSPI, a battery that supplies electric power to a second motor generator, and an ECU. When an occurrence of the LSPI is detected, the ECU restricts a maximum torque, which can be output by the engine with the forced induction device, more than when an occurrence of the LSPI is not detected to prevent an engine operating point from being included in an LSPI area, and when an output of the engine becomes insufficient along with the restriction on the maximum torque, the engine compensates for an amount of the insufficient output with electric power supplied from the battery.
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公开(公告)号：US20200325839A1
公开(公告)日：2020-10-15
申请号：US16842137
申请日：2020-04-07
发明人： Koichi Yonezawa , Satoshi Yoshizaki , Osamu Maeda , Daigo Ando , Yoshikazu Asami , Kenji Itagaki , Shunsuke Oyama , Koichiro Muta
摘要： When it is determined that control of warm-up of a catalyst is necessary at the time of start of an engine, an ECU starts warm-up control. Initially, the ECU performs first processing for a first set time period. In the first processing, the ECU sets the engine to an idle state and fully opens a waste gate valve. When the first set time period has elapsed since the first processing was started, the ECU performs second processing. In the second processing, the ECU sets the engine to a prescribed rotation speed and fully closes the waste gate valve. When a second set time period has elapsed since the second processing was started, the ECU quits the second processing and quits warm-up control.
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