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公开(公告)号：US20240239331A1
公开(公告)日：2024-07-18
申请号：US18599795
申请日：2024-03-08
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO , Haibo LIU , Keisuke KAWAI , Tatsuya TAKAGI , Sadahiro AKAMA , Harumi HORIHATA , Masaru KUBOTA , Youichi KUROYANAGI
IPC: B60W30/045 , B60W10/08 , B60W10/18 , B60W30/18 , B60W30/188
CPC classification number: B60W30/045 , B60W10/08 , B60W10/18 , B60W30/18036 , B60W30/18109 , B60W30/188 , B60W2510/20 , B60W2520/14 , B60W2520/28 , B60W2520/30 , B60W2710/083 , B60W2710/18 , B60W2710/20 , B60W2720/14 , B60W2720/28 , B60W2720/30
Abstract: A mobile object includes: a first braking/driving torque application unit that applies first braking/driving torque to a right driving wheel; a second braking/driving torque application unit that applies second braking/driving torque to a left driving wheel; a right driven wheel and a left driven wheel each of which is constituted of a caster wheel; and a control unit that controls the first braking/driving torque application unit and the second braking/driving torque application unit. Moreover, the control unit is configured to perform turning, advancing/reversing and braking of the mobile object by controlling the first braking/driving torque and the second braking/driving torque or by controlling rotational speed of the right driving wheel and rotational speed of the left driving wheel.
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公开(公告)号：US20240239208A1
公开(公告)日：2024-07-18
申请号：US18620236
申请日：2024-03-28
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO , Haibo LIU , Keisuke KAWAI , Tatsuya TAKAGI , Sadahiro AKAMA , Harumi HORIHATA , Masaru KUBOTA , Youichi KUROYANAGI
CPC classification number: B60L15/2036 , B60K1/02 , B60L2240/22 , B60L2240/461 , B60L2240/647
Abstract: This vehicle comprises a first dynamo-electric machine that imparts torque to a first drive wheel, a second dynamo-electric machine that applies torque to a second drive wheel, a rotation speed sensor that acquires a first rotation speed of the first drive wheel, a rotation speed sensor that acquires a second rotation speed of the second drive wheel, and a control device. The control device includes a basic setting unit that sets a basic rotation speed, a differential setting unit that sets a differential rotation speed, and an action control unit that controls the operation of the first dynamo-electric machine and the second dynamo-electric machine so that an average value of the first rotation speed and the second rotation speed becomes the basic rotation speed, and a difference between the first rotation speed and the second rotation speed reaches the differential rotation speed.
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公开(公告)号：US20210148420A1
公开(公告)日：2021-05-20
申请号：US17162651
申请日：2021-01-29
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
IPC: F16D48/08
Abstract: A first engagement member rotates integrally with a first shaft. A second engagement member rotates integrally with a second shaft. An electric clutch device drives the first engagement member with a pressing member that extends and contracts in response to drive of the clutch actuator. The drive control unit performs a position control to control the clutch actuator, such that a drive amount of the first engagement member becomes a target stroke amount, when the first engagement member and the second engagement member are separated from each other and performs a pressing force control to control the clutch actuator, such that the pressing force between the first engagement member and the second engagement member becomes a target pressing force, when the first engagement member and the second engagement member are engaged with each other.
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公开(公告)号：US20200271222A1
公开(公告)日：2020-08-27
申请号：US16871335
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 drive control unit, an abnormality monitoring unit, and a presence determination unit. The drive control unit controls a drive of a shift actuator. The abnormality monitoring unit monitors an abnormality of the shift range switching system. The presence determination unit determines whether the driver is in the driver's seat. When the abnormality of the range mismatch, which the actual shift range does not match the target shift range in a state where the driver is absent, the vehicle control device executes the fail safe process different from the fail safe process when the driver is present.
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公开(公告)号：US20200208741A1
公开(公告)日：2020-07-02
申请号：US16811170
申请日：2020-03-06
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: An angle calculation unit calculates a motor angle based on a motor rotation angle signal acquired from a motor rotation angle sensor that detects a rotational position of a motor. An acceleration variation calculation unit calculates an acceleration variation parameter related to an amount of variation in motor acceleration, based on the motor angle. An idle running determination unit determines the end of an idle running state in which the motor is rotating within the range of play, based on the acceleration variation parameter. A target setting unit sets a target motor angle by adopting an angle correction value that is a value corresponding to the motor angle at the end of the idle running state. A drive control unit controls the drive of the motor such that the motor angle becomes the target motor angle.
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Patent Agency Ranking
公开(公告)号：US20190381976A1
公开(公告)日：2019-12-19
申请号：US16556402
申请日：2019-08-30
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A parking brake control device is a control device for a vehicle used in a vehicle on which a shift by wire system and an electric parking brake system are mounted. A function of automatically operating an electric parking brake without an operation of the driver of the vehicle is referred to as an EPB automatic operation function, and a request by the driver for disabling the EPB automatic operation function is referred to as a disabling request. The parking brake control device includes a disabling determination part configured to determine a presence or absence of the disabling request, a vehicle stop determination part configured to determine whether the vehicle is stopped, a slope determination part configured to determine whether the vehicle is located on a slope, and an EPB automatic operation part. The EPB automatic operation part operates the electric parking brake when the vehicle is stopped on the slope even if the disabling request is made.
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公开(公告)号：US20190264805A1
公开(公告)日：2019-08-29
申请号：US16407444
申请日：2019-05-09
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A shift range control device includes an angle calculation unit, a target angle setting unit, a learning unit and a drive control unit. The learning unit learns a correction value to be used in calculating a motor angle target value based on a motor angle and an output shaft signal. The learning unit learns the correction value based on at least a first change point value, which is the motor angle at a timing at which the output shaft signal changes when a rotation member rotates in a first direction from a state in which an engagement member is in the center of valley section, and/or a second change point value, which is the motor angle at a timing at which the output shaft signal changes when the rotation member rotates in a second direction from a state in which the engagement member is in the center of the valley section.
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公开(公告)号：US20190190411A1
公开(公告)日：2019-06-20
申请号：US16322981
申请日：2017-09-07
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A shift range control device, mounted on a vehicle for switching a shift range by controlling a driving operation of a motor, includes: feedback controller; a feedback value setting unit; a current sensor; and a current correction unit. The feedback controller performs a feedback control based on an actual angle of the motor and a motor speed as a rotational speed of the motor. The feedback value setting unit sets a feedback value of the motor speed to advance a phase of the motor speed, based on the motor speed. The current sensor detects a motor current which flows through the motor. The current correction unit estimates a temperature of the motor based on the motor current, and corrects a target motor speed which is a target speed of the motor determined based on a request shift range.
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公开(公告)号：US20190131897A1
公开(公告)日：2019-05-02
申请号：US16096054
申请日：2017-03-06
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A shift range control apparatus switching a shift range by controlling a drive of a motor, the shift range control apparatus includes: an idle running determiner that is configured to determine whether a rotation state of the motor is an idle running state in which the motor rotates within a range of play existing between a motor shaft being a rotation shaft of the motor and an output shaft to which a rotation of the motor is transmitted; and a current limiter that is configured to limit a current of the motor when it is determined that the rotation state of the motor is the idle running state.
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公开(公告)号：US20190097554A1
公开(公告)日：2019-03-28
申请号：US16202428
申请日：2018-11-28
Applicant: DENSO CORPORATION
Inventor： Shigeru KAMIO
Abstract: A shift range control apparatus includes: an idling determination portion that determines, based on a motor angle and an output shaft angle, an end of an idling state in which a motor is rotating within a range of a play, the motor angle being a value based on a detected value of a motor rotation angle sensor that detects the rotation of the motor, the output shaft angle being a value based on a detected value of an output shaft sensor that detects rotation of the output shaft; and a target value setting portion that sets a motor angle target value for drive control of the motor using a corrected angle value that is a value corresponding to the motor angle at an end of an idling.
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