公开(公告)号：US20230341048A1

公开(公告)日：2023-10-26

申请号：US18302373

申请日：2023-04-18

Applicant: DENSO CORPORATION

Inventor： Satoko TANEMURA ,  Seiji NAKAYAMA ,  Akihiro HARADA ,  Haruka MIYANO

IPC: F16H61/32 ,  F16H59/10

CPC classification number: F16H61/32 ,  F16H59/105 ,  F16H2061/326 ,  F16H2710/22

Abstract: A control device switches a shift range by driving a motor and moving a detent roller in a parking lock system including an electric actuator having the motor and a detent mechanism. A control unit of the control device includes a drive control part, a position determination part and a range determination part. The drive control part controls driving of the motor. When the detent roller is moved to a target valley portion corresponding to the target range, a position determination part determines that the detent roller has passed over a peak portion based on sensor information. The range determination part is configured to estimate that the detent roller has reached the range of the target range corresponding to the target range at a peak passing over determination timing when it is determined that the detent roller has passed over the peak portion.

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

IPC: B60L15/20 ,  F16H63/34 ,  F16H59/50 ,  F16H59/66 ,  F16H63/38

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.

公开(公告)号：US20240067142A1

公开(公告)日：2024-02-29

申请号：US18493427

申请日：2023-10-24

Applicant: DENSO CORPORATION

Inventor： Akihiro HARADA ,  Seiji NAKAYAMA ,  Shigeru KAMIO ,  Takuji NAKAMURA

IPC: B60T8/171 ,  B60T17/22

CPC classification number: B60T8/171 ,  B60T17/221 ,  B60T1/005 ,  B60T2201/10 ,  B60T2270/89

Abstract: A vehicle control device includes: an actuator drive controller configured to control a drive of an actuator; a main motor drive controller configured to control a drive of a main motor; and a stuck determiner. The stuck determiner determines a stuck of the actuator based on a detection value of a sensor unit that detects a physical quantity changed according to a drive state of the actuator. The main motor drive controller is configured to perform an engaging surface pressure reduction control for reducing an engaging surface pressure between a parking gear and a parking lever by driving the main motor, when the stuck determiner determines that the actuator is stuck in releasing a parking lock of the vehicle.

公开(公告)号：US20240059155A1

公开(公告)日：2024-02-22

申请号：US18493405

申请日：2023-10-24

Applicant: DENSO CORPORATION

Inventor： Akihiro HARADA ,  Shigeru KAMIO ,  Seiji NAKAYAMA

IPC: B60L15/20 ,  F16H63/34 ,  F16H59/52 ,  F16H59/70 ,  F16H59/66

CPC classification number: B60L15/20 ,  F16H63/3466 ,  F16H59/52 ,  F16H59/70 ,  F16H59/66 ,  F16H2059/663

Abstract: A vehicle control device controls a vehicle drive system including a main motor as a drive source of a vehicle, a parking lock mechanism, and an actuator. The vehicle control device includes an actuator drive control section that controls a drive of the actuator, a main motor drive control section that controls a drive of the main motor, and a range determination unit that determines whether or not a shift range is a parking range. When releasing the parking lock, if the parking range is not released within a parking range release determination time that is variable according to an operating environment, the main motor drive control section performs a meshing surface pressure reduction control for driving the main motor so as to reduce a meshing surface pressure between a parking gear and a parking lever.

公开(公告)号：US20240042849A1

公开(公告)日：2024-02-08

申请号：US18491412

申请日：2023-10-20

Applicant: DENSO CORPORATION

Inventor： Akihiro HARADA ,  Seiji NAKAYAMA ,  Shigeru KAMIO

IPC: B60K26/02

CPC classification number: B60K26/02

Abstract: A vehicle control device controls a vehicle drive system having a main motor serving as a source of drive power of a vehicle, a parking lock mechanism, and an actuator. The vehicle control device includes an actuator drive controller that controls drive of the actuator, and a main motor drive controller that controls drive of the main motor. When a parking lock of the vehicle cannot be released by the actuator due to an engaging surface pressure between a parking gear and a parking lever, the main motor drive controller performs an engaging surface pressure reduction control in which an engaging surface pressure is reduced by driving the main motor to cause an increase of a torque of the main motor by a set increase speed.