Patents by Inventor Jumpei Kakehi
Jumpei Kakehi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11613187Abstract: A vehicle control device includes at least one ECU configured to: when charging the first battery from the power generation device is possible and a restriction on operation of the power generation device is predicted during traveling, control the power generation unit such that the first battery is charged from the power generation device and control the power generation unit such that the second battery is charged in a case where an SOC of the first battery is equal to or higher than a threshold; and when the charging is not possible, the SOC of the first battery is equal to or lower than a threshold and an SOC of the second battery is equal to or higher than a threshold and the restriction is predicted during traveling, control the power generation unit such that the first battery is charged from the second battery.Type: GrantFiled: November 13, 2020Date of Patent: March 28, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanori Shinohara, Jumpei Kakehi, Miki Sugita, Koji Ito
-
Publication number: 20210162883Abstract: A vehicle control device includes at least one ECU configured to: when charging the first battery from the power generation device is possible and a restriction on operation of the power generation device is predicted during traveling, control the power generation unit such that the first battery is charged from the power generation device and control the power generation unit such that the second battery is charged in a case where an SOC of the first battery is equal to or higher than a threshold; and when the charging is not possible, the SOC of the first battery is equal to or lower than a threshold and an SOC of the second battery is equal to or higher than a threshold and the restriction is predicted during traveling, control the power generation unit such that the first battery is charged from the second battery.Type: ApplicationFiled: November 13, 2020Publication date: June 3, 2021Inventors: Masanori SHINOHARA, Jumpei KAKEHI, Miki SUGITA, Koji ITO
-
Patent number: 9810168Abstract: A control apparatus for a vehicle includes: an inter-vehicle distance control unit that performs an inter-vehicle distance control with respect to a preceding vehicle; an engine stop-start unit that stops the engine when an engine stop condition is satisfied and starts the engine when an engine start condition is satisfied; a vehicle stop state maintenance unit that maintains a braking force for stopping the vehicle; the engine stop-start unit stops the engine, by activation of the vehicle stop state maintenance unit in the case where the vehicle is stopped by the inter-vehicle distance control unit; and an engine operation control unit that, in the case where the inter-vehicle distance control unit is set to be active in the vehicle stop state, maintains the operation state of the engine before the inter-vehicle distance control unit is set to be active.Type: GrantFiled: November 20, 2014Date of Patent: November 7, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirokazu Kato, Jumpei Kakehi
-
Patent number: 9598059Abstract: A controller for a vehicle includes: an engine controller that outputs a stop request to stop an engine when a stop condition is satisfied, and that outputs a start request to start the engine or resume the engine from a stop preparation state when a start condition is satisfied; a brake controller that, at least in a period between the outputs of the requests by the engine controlling part, automatically generates a braking force for keeping parking regardless of a driver's brake operation and that in a case where an accelerator operation amount is smaller than a predetermined ratio, when the start request has been output and the engine is being resumed from the stop preparation state to a normal rotation state, the brake controller reduces a brake pressure to a first predetermined pressure in a shorter time than when the engine is being started from a stopped state.Type: GrantFiled: November 10, 2014Date of Patent: March 21, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirokazu Kato, Hiroaki Seguchi, Jumpei Kakehi
-
Patent number: 9527492Abstract: A negative pressure sensor abnormality detection apparatus includes a negative pressure sensor that outputs a signal corresponding to a negative pressure that a negative pressure pump generates, the negative pressure assisting a vehicle driver's brake operation; a negative pressure detection part that detects the negative pressure based on the signal that is output by the negative pressure sensor; a number-of-rotations counting part that counts the number of rotations of the negative pressure pump; and an abnormality determination part that determines that the negative pressure sensor is in an abnormal condition if, under a condition where a change in the driver's brake operation falls within a predetermined range, a change in the negative pressure detected by the negative pressure detection part along with an increase in the number of rotations counted by the number-of-rotations counting part is out of a predetermined range.Type: GrantFiled: November 19, 2015Date of Patent: December 27, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jumpei Kakehi, Kouki Moriya
-
Publication number: 20160273468Abstract: A control apparatus for a vehicle includes: an inter-vehicle distance control unit that performs an inter-vehicle distance control with respect to a preceding vehicle; an engine stop-start unit that stops the engine when an engine stop condition is satisfied and starts the engine when an engine start condition is satisfied; a vehicle stop state maintenance unit that maintains a braking force for stopping the vehicle; the engine stop-start unit stops the engine, by activation of the vehicle stop state maintenance unit in the case where the vehicle is stopped by the inter-vehicle distance control unit; and an engine operation control unit that, in the case where the inter-vehicle distance control unit is set to be active in the vehicle stop state, maintains the operation state of the engine before the inter-vehicle distance control unit is set to be active.Type: ApplicationFiled: November 20, 2014Publication date: September 22, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirokazu KATO, Jumpei KAKEHI
-
Publication number: 20160257287Abstract: A controller for a vehicle includes: an engine controller that outputs a stop request to stop an engine when a stop condition is satisfied, and that outputs a start request to start the engine or resume the engine from a stop preparation state when a start condition is satisfied; a brake controller that, at least in a period between the outputs of the requests by the engine controlling part, automatically generates a braking force for keeping parking regardless of a driver's brake operation and that in a case where an accelerator operation amount is smaller than a predetermined ratio, when the start request has been output and the engine is being—resumed from the stop preparation state to a normal rotation state, the brake controller reduces a brake pressure to a first predetermined pressure in a shorter time than when the engine is being started from a stopped state.Type: ApplicationFiled: November 10, 2014Publication date: September 8, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirokazu KATO, Hiroaki SEGUCHI, Jumpei KAKEHI
-
Publication number: 20160185333Abstract: A negative pressure sensor abnormality detection apparatus includes a negative pressure sensor that outputs a signal corresponding to a negative pressure that a negative pressure pump generates, the negative pressure assisting a vehicle driver's brake operation; a negative pressure detection part that detects the negative pressure based on the signal that is output by the negative pressure sensor; a number-of-rotations counting part that counts the number of rotations of the negative pressure pump; and an abnormality determination part that determines that the negative pressure sensor is in an abnormal condition if, under a condition where a change in the driver's brake operation falls within a predetermined range, a change in the negative pressure detected by the negative pressure detection part along with an increase in the number of rotations counted by the number-of-rotations counting part is out of a predetermined range.Type: ApplicationFiled: November 19, 2015Publication date: June 30, 2016Inventors: Jumpei KAKEHI, Kouki MORIYA
-
Patent number: 9359989Abstract: A vehicle includes a starter used for starting an engine and including an actuator performing an engagement operation with a pinion gear and a motor rotating the pinion gear that are separately controllable. When starting the engine by the user's key operation, a start request signal caused by the key operation is delayed in a delay circuit to output a control signal for driving the motor. When restarting an engine after the engine is automatically stopped, a malfunction detection unit detects a malfunction in the delay circuit based on a control signal for driving the actuator and the control signal for driving the motor.Type: GrantFiled: March 15, 2011Date of Patent: June 7, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 9109567Abstract: A starter includes a pinion gear, an actuator for moving the pinion gear to a position where the pinion gear is engaged with a ring gear in a driven state, and a motor for rotating the pinion gear. An ECU includes a rotation mode in which the motor is driven before the actuator is driven and an engagement mode in which the actuator is driven before the motor is driven. In the engagement mode, the actuator is driven after lapse of a predetermined first time period since a decision to start an engine was made, and the motor is driven after lapse of a second time period longer than the first time period since the decision to start the engine was made. In the rotation mode, the motor is driven after lapse of the second time period since a decision to start the engine was made.Type: GrantFiled: July 16, 2010Date of Patent: August 18, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 8714037Abstract: A device for starting an engine includes a starter for starting the engine and an ECU. The starter includes a pinion gear for engagement with a ring gear for cranking the engine, an actuator structured to engage the pinion gear with a ring gear, and a motor for rotating the pinion gear. The actuator and the motor can individually be controlled. The ECU has a rotation mode for driving the motor prior to drive of the actuator and an engagement mode for causing the actuator to engage the pinion gear and the ring gear with each other prior to drive of the motor. When a request to start the engine is made, the ECU switches selection between the rotation mode and the engagement mode based on a rotation speed of the engine and a reduction rate in rotation speed of the engine.Type: GrantFiled: July 16, 2010Date of Patent: May 6, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 8706387Abstract: When a predetermined stop condition is satisfied, an engine is stopped. When a predetermined start condition is satisfied, a motor in a starter is driven and the engine is started. When a voltage of a battery for supplying electric power to the motor becomes lower than a threshold value while the motor is driven, stoppage of the engine is thereafter restricted. The threshold value increases as an engine rotation speed at the time when the motor is driven increases.Type: GrantFiled: February 18, 2011Date of Patent: April 22, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 8695553Abstract: A starter can independently drive an actuator for moving a pinion gear to a position where the pinion gear is engaged with a ring gear and a motor for rotating the pinion gear. When synchronization between the ring gear and the pinion gear is restricted, a rotation mode in which the pinion gear is rotated before the actuator is driven is restricted.Type: GrantFiled: March 25, 2011Date of Patent: April 15, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 8631778Abstract: A starter includes a pinion gear that can be engaged with a ring gear provided around an outer circumference of a flywheel or a drive plate of an engine, an actuator for moving the pinion gear to a position of engagement with the ring gear in a driven state, a helical spline for rotating the pinion gear in a reverse direction while the pinion gear moves toward the ring gear, and a motor for rotating the pinion gear. The actuator and the motor are individually controlled. After the actuator was driven and before the motor is driven, drive of the actuator is stopped.Type: GrantFiled: July 16, 2010Date of Patent: January 21, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Publication number: 20140001768Abstract: A vehicle includes a starter used for starting an engine and including an actuator performing an engagement operation with a pinion gear and a motor rotating the pinion gear that are separately controllable. When starting the engine by the user's key operation, a start request signal caused by the key operation is delayed in a delay circuit to output a control signal for driving the motor. When restarting an engine after the engine is automatically stopped, a malfunction detection unit detects a malfunction in the delay circuit based on a control signal for driving the actuator and the control signal for driving the motor.Type: ApplicationFiled: March 15, 2011Publication date: January 2, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Publication number: 20140000541Abstract: A starter can independently drive an actuator for moving a pinion gear to a position where the pinion gear is engaged with a ring gear and a motor for rotating the pinion gear. When synchronization between the ring gear and the pinion gear is restricted, a rotation mode in which the pinion gear is rotated before the actuator is driven is restricted.Type: ApplicationFiled: March 25, 2011Publication date: January 2, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 8573174Abstract: An ECU executes a program including the steps of carrying out fluctuation suppression control in a case where a request to start an engine has been made, a rotation mode has been selected, and a motor is being driven and canceling fluctuation suppression control in a case where a full drive mode has been selected and engagement between a pinion gear and a ring gear has been completed.Type: GrantFiled: July 16, 2010Date of Patent: November 5, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Patent number: 8554453Abstract: A starter includes a pinion gear that can be engaged with a ring gear coupled to a crankshaft of an engine, an actuator to move the pinion gear to a position where the pinion gear is engaged with the ring gear in a driven state, and a motor to rotate the pinion gear. When the engine is started in response to a driver's start intention, any mode of an engagement mode in which the actuator causes the pinion gear to engage with the ring gear before the motor is driven and a rotation mode in which the motor is driven before the actuator is driven is selected. When the engine is started not in response to a driver's start intention, the engagement mode is selected.Type: GrantFiled: April 8, 2011Date of Patent: October 8, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Publication number: 20130175810Abstract: An ECU executes a program including the steps of selecting a rotation mode in a case where a request to start an engine has been made and an engine rotation speed is equal to or lower than ?2 and greater than ?1, selecting a full drive mode, stopping a motor and an actuator in a case where engagement between a pinion gear of a starter and a ring gear of the engine is defective, and selecting an engagement mode in a case where a motor rotation speed Nm is equal to or lower than A and an engine rotation speed Ne is equal to or lower than.Type: ApplicationFiled: July 22, 2010Publication date: July 11, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim
-
Publication number: 20130158842Abstract: When a predetermined stop condition is satisfied, an engine is stopped. When a predetermined start condition is satisfied, a motor in a starter is driven and the engine is started. When a voltage of a battery for supplying electric power to the motor becomes lower than a threshold value while the motor is driven, stoppage of the engine is thereafter restricted. The threshold value increases as an engine rotation speed at the time when the motor is driven increases.Type: ApplicationFiled: February 18, 2011Publication date: June 20, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouki Moriya, Jumpei Kakehi, Hasrul Sany Bin Hashim