公开(公告)号：US20080315815A1

公开(公告)日：2008-12-25

申请号：US12120317

申请日：2008-05-14

申请人： Akira SERIZAWA ,  Byungeok SEO ,  Hiroo YABE

发明人： Akira SERIZAWA ,  Byungeok SEO ,  Hiroo YABE

IPC分类号： H02P31/00

CPC分类号： F01P7/08 ,  F01P2005/046 ,  F01P2031/24 ,  H02P29/0241

摘要： A control device for controlling a recovery from a locking of a motor includes: a switching unit which supplies a motor current from a current supplying unit to the motor; and a driving control unit which supplies a PWM control signal to the switching unit to control a driving of the switching unit. The driving control unit supplies the PWM control signal with a low duty ratio lower than a regular duty ratio to the switching unit when the locking of the motor is detected depending on a variation in temperature of the switching unit. The driving control unit supplies the PWM control signal with the regular duty ratio to the switching unit when a cancel of the locking of the motor is detected depending on a variation in inter-terminal voltage of the motor.

摘要翻译： 用于控制从电动机的锁定恢复的控制装置包括：切换单元，其将来自电流供应单元的电动机电流提供给电动机; 以及驱动控制单元，其向切换单元提供PWM控制信号以控制切换单元的驱动。 当根据切换单元的温度变化检测到电动机的锁定时，驱动控制单元向切换单元提供低于正常占空比的低占空比的PWM控制信号。 当根据电动机的端子间电压的变化来检测取消电动机的锁定时，驱动控制单元向开关单元提供具有规则占空比的PWM控制信号。

公开(公告)号：US20090224714A1

公开(公告)日：2009-09-10

申请号：US12398542

申请日：2009-03-05

申请人： Akira SERIZAWA ,  Hiroo Yabe ,  Sadafumi Ikeda ,  Kouji Manabe ,  Akira Teranishi ,  Hironobu Takahashi

发明人： Akira SERIZAWA ,  Hiroo Yabe ,  Sadafumi Ikeda ,  Kouji Manabe ,  Akira Teranishi ,  Hironobu Takahashi

IPC分类号： H02P7/00 ,  F02M57/02

CPC分类号： F02D41/221 ,  F02D41/3082 ,  F02D2041/2027 ,  F02D2041/2058 ,  F02D2041/226 ,  H02P7/29 ,  H02P29/032 ,  Y10T307/352 ,  Y10T307/544 ,  Y10T307/549

摘要： A control apparatus for controlling a fuel pump includes: an electronic switch provided in a circuit for connecting a power supply to a motor for driving the fuel pump; a current detector which detects a current which flows through the motor; and a controller which controls the electronic switch in a first PWM mode of a first frequency and a first duty ratio in a normal operation; and change a PWM mode to control the electronic switch in a second PWM mode of a second frequency lower than the first frequency and a second duty ratio lower than the first duty ratio when the current flowing through the motor exceeds a threshold current value in the normal operation.

摘要翻译： 一种用于控制燃料泵的控制装置，包括：电子开关，设置在用于将电源连接到用于驱动燃料泵的电动机的电路中; 电流检测器，其检测流过马达的电流; 以及控制器，其在正常操作中以第一频率和第一占空比的第一PWM模式控制所述电子开关; 并且当流过电动机的电流超过正常情况下的阈值电流值时，改变PWM模式以控制低于第一频率的第二频率的第二PWM模式的电子开关和低于第一占空比的第二占空比 操作。