公开(公告)号：US20180066549A1

公开(公告)日：2018-03-08

申请号：US15561594

申请日：2016-04-08

Applicant: DENSO CORPORATION

Inventor： Yoshifumi KISHIMOTO ,  Masatake SATO

IPC: F01L1/356 ,  B60R16/023 ,  H02P6/08 ,  H02P6/15 ,  H02P6/24

CPC classification number: F01L1/356 ,  B60R16/0232 ,  F01L1/344 ,  F01L2001/0537 ,  F01L2201/00 ,  F01L2250/02 ,  F01L2800/01 ,  F01L2810/03 ,  F01L2820/032 ,  F01L2820/041 ,  H02P6/08 ,  H02P6/153 ,  H02P6/157 ,  H02P6/24 ,  H02P2205/05

Abstract: A motor drive device for valve timing control of an internal combustion engine includes: a motor drive unit that controls a phase of a camshaft to drive a motor for controlling opening and closing operation of a valve; and a determination unit that determines whether a timing is to start up the motor or to normally drive the motor. The motor drive unit drives the motor with an advance angle when it is determined that the timing is to normally drive the motor by the determination unit, and the motor drive unit normally drives the motor without the advance angle when it is determined that the timing is to start up the motor.

公开(公告)号：US20160359434A1

公开(公告)日：2016-12-08

申请号：US15169907

申请日：2016-06-01

Applicant: DENSO CORPORATION

Inventor： Tatsuhiro NUMATA ,  Masatake SATO

IPC: H02P6/08 ,  F01L9/04 ,  F01L1/34 ,  H02P27/08 ,  H02P6/14

CPC classification number: H02P6/08 ,  F01L1/344 ,  F01L3/20 ,  F01L2001/0537 ,  F01L2013/103 ,  F01L2201/00 ,  F01L2250/02 ,  F01L2800/00 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042 ,  F02D2041/001 ,  F02D2041/2027 ,  H02P6/14 ,  H02P6/30 ,  H02P27/08

Abstract: A motor driver for driving a motor in a valve timing controller of an internal combustion engine, including an Electronic Driver Unit (EDU) that, upon receiving a target rotation cycle as the instructed rotation cycle, instructs a rotation controller to (i) calculate a duty value of a Pulse Width Modulation (PWM) signal for driving the motor based on an instructed rotation cycle and an actual rotation cycle and (ii) output a calculation result of the duty value to a motor drive unit, with the rotation controller outputting, to the motor drive unit, an instruction signal that rotates the motor forward along an actual rotation direction, when the calculation result takes a positive value as a duty ratio of the PWM signal, establishing an accurate motor rotation speed control together with an improved responsiveness.

Abstract translation: 一种用于在内燃机的气门正时控制器中驱动电动机的电动机驱动器，包括电子驱动单元（EDU），当接收到作为指示的旋转周期的目标旋转周期时，指示旋转控制器（i）计算 用于根据指示的旋转周期和实际旋转周期驱动电动机的脉宽调制（PWM）信号的占空比值，以及（ii）通过旋转控制器输出将占空比的计算结果输出到电动机驱动单元， 当计算结果以正值作为PWM信号的占空比时，将马达沿实际旋转方向向前旋转的指令信号，建立精确的马达转速控制以及改进的响应性。