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公开(公告)号：US20240383336A1
公开(公告)日：2024-11-21
申请号：US18665076
申请日：2024-05-15
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO , Akihiro TAKAHASHI , Haibo LIU
IPC: B60L3/00
Abstract: A vehicle control device includes a step drive over control section that performs a step drive over control for a vehicle to drive over a step, a protection control section that performs a protection control to protect a rotating electric machine that drives the vehicle by suppressing the rotating electric machine from overheating, a temperature acquisition section that acquires the temperature of the rotating electric machine, and an execution deferment section that defers an execution of the protection control until a predetermined period has elapsed if the temperature of the rotating electrical machine becomes equal to or higher than a first threshold value at which the protection control should be executed while the vehicle is performing the step drive over control.
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公开(公告)号：US20210394621A1
公开(公告)日：2021-12-23
申请号：US17464332
申请日：2021-09-01
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: An electric motor control device includes a target torque setting unit setting target torque for each of a right-side control circuit and a left-side control circuit, and a failure occurrence determination unit determining whether there is a failure occurrence in at least one of the two control circuits. The target torque setting unit sets, in response to there being a failure occurrence in a failure control circuit that is one of the two control circuits and there being a no failure occurrence in a normal control circuit that is the other of the two control circuits, fail-safe torque which is lower than a normal value of the target torque as the target torque for the failure control circuit, and sets failure-time target torque which is lower than the normal value of the target torque and being higher than the fail-safe torque as the target torque for the normal control circuit.
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公开(公告)号：US20200271224A1
公开(公告)日：2020-08-27
申请号：US16871372
申请日：2020-05-11
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A vehicle control device controls a vehicle control system, which includes a shift range switching system configured to switch a shift range by controlling a drive of a shift actuator, and an electric brake system configured to brake a vehicle by controlling a drive of a brake actuator. The vehicle control device includes a shift control unit and a brake control unit. The shift control unit controls a drive of the shift actuator. The brake control units control a drive of a brake actuator. When the start switch of the vehicle is turned off, the power of the brake control units is turned off after the shift range switching system completes switching to the P range.
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公开(公告)号：US20190195357A1
公开(公告)日：2019-06-27
申请号：US16292630
申请日：2019-03-05
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
CPC classification number: F16H61/32 , F16H59/105 , F16H2061/326 , H02P3/06 , H02P3/24 , H02P6/08 , H02P6/24
Abstract: A shift range switching control device for switching a shift range by controlling driving of a motor includes a feedback control section, a stationary phase energization control section, and a switching control section. The feedback control section performs a feedback control based on an actual angle of the motor, and a motor speed. The stationary phase energization control section performs a stationary phase energization control which energizes a stationary phase selected according to the actual angle. The switching control section switches the control state of the motor.
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公开(公告)号：US20130270471A1
公开(公告)日：2013-10-17
申请号：US13860943
申请日：2013-04-11
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
IPC: F16K31/06
CPC classification number: F16K31/0675 , F16H61/0251 , F16H61/04 , F16H61/66259 , F16H2061/0258
Abstract: A hydraulic pressure controller is used to control output pressure of a solenoid valve in an oil-hydraulic circuit of a transmission of a vehicle. The hydraulic pressure controller includes an operation value setting section and a correction section. The operation value setting section sets a duty cycle of an operation signal based on a target exciting current and an actual exciting current of the solenoid valve. The operation signal is inputted to a driver circuit for driving the solenoid valve. The correction section corrects the duty cycle, the target exciting current, or the actual exciting current by using a filter for eliminating or damping a resonant frequency component of a vibration model of the output pressure.
Abstract translation: 液压控制器用于控制车辆变速器的油压回路中的电磁阀的输出压力。 液压控制器包括操作值设定部和校正部。 操作值设定部根据目标励磁电流和电磁阀的实际励磁电流来设定运转信号的占空比。 操作信号被输入到用于驱动电磁阀的驱动电路。 校正部通过使用用于消除或阻尼输出压力的振动模型的谐振频率分量的滤波器来校正占空比，目标励磁电流或实际励磁电流。
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Patent Agency Ranking
公开(公告)号：US20240042869A1
公开(公告)日：2024-02-08
申请号：US18492104
申请日：2023-10-23
Applicant: DENSO CORPORATION
Inventor： Akihiro HARADA , Seiji NAKAYAMA , Shigeru KAMIO
CPC classification number: B60L15/20 , F16H63/3466 , F16H59/50 , F16H59/66 , F16H63/38 , F16H2059/663
Abstract: A vehicle control device includes an actuator drive control section that controls drive of an actuator, a main motor drive control section that controls drive of a main motor, and a stagnation determination section. The stagnation determination section determines a stagnation of the actuator based on a detected value of a sensor unit that detects a physical quantity that changes according to a drive state of the actuator. When performing a meshing surface pressure reduction control for reducing a meshing surface pressure generated at the meshing point between a parking gear and a parking lever by driving the main motor, the main motor drive control section decreases a main motor torque which is a torque of the main motor based on the detected value of the sensor unit.
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公开(公告)号：US20200347930A1
公开(公告)日：2020-11-05
申请号：US16930671
申请日：2020-07-16
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A motor angle calculation unit acquires from a motor rotation angle sensor a motor rotation angle signal corresponding to a rotational position of the motor, and calculates a motor angle based on the motor rotation angle signal. An output shaft signal acquisition unit acquires, from an output shaft sensor that detects a rotational position of an output shaft, an output shaft signal corresponding to the rotational position of an output shaft. An abnormality determination unit determines abnormality in the output shaft sensor. A target angle setting unit sets a target rotation angle corresponding to a target shift range. A drive control unit controls driving of the motor so that the motor angle becomes a target rotation angle. The target angle setting unit sets the target rotation angle to different values when the output shaft sensor is normal and when the output shaft sensor is abnormal.
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公开(公告)号：US20200271221A1
公开(公告)日：2020-08-27
申请号：US16867809
申请日：2020-05-06
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A shift range control device switches a shift range by controlling a drive of a motor, and includes an abnormality monitoring unit and a torque control command unit. The abnormality monitoring unit detects an abnormality occurrence of an intermediate range stop in which the output shaft to which the drive of the motor is transmitted stops in an intermediate range region. The intermediate range region is a range outside a range guarantee region that guarantees the function of each range. When an abnormality of the intermediate range stop occurs, the torque control command unit commands suppression of the torque applied to the automatic transmission.
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公开(公告)号：US20200080635A1
公开(公告)日：2020-03-12
申请号：US16682152
申请日：2019-11-13
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A shift range control device switches a shift range by controlling driving of a motor in a shift range switching system, in which a play exists between a motor shaft which is a rotation shaft of a motor and an output shaft to which the rotation of the motor is transmitted. A parameter calculation unit calculates a motor angle, a motor speed and a motor acceleration based on a motor rotation angle signal acquired from a motor rotation angle sensor which detects a rotation position of the motor. An idling check unit checks an end of idle rotation, in which the motor rotates within a range of the play, based on the motor speed and the motor acceleration. A target setting unit sets a motor angle target value related to drive control on the motor, by using an angle correction value which is a value corresponding to the motor angle at the end of the idle rotation. A drive control unit controls the driving of the motor such that the motor angle becomes the motor angle target value.
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公开(公告)号：US20190383387A1
公开(公告)日：2019-12-19
申请号：US16551919
申请日：2019-08-27
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: The present disclosure may provide a shift range control apparatus that controls on-off operations of switching elements in a driver circuit, drives a motor, and switches a shift range. The shift range control apparatus may be configured to determine an abnormality of a rotation angle sensor detecting a rotation angle of the motor, to control a drive of the motor using a detection value, and to execute a control which switches an energization phase every energization phase switching period without using the detection value of the rotation angle sensor in response to that the rotation angle sensor is abnormal.
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