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：US07859213B2

公开(公告)日：2010-12-28

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： H02H7/00

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：US07759891B2

公开(公告)日：2010-07-20

申请号：US11882378

申请日：2007-08-01

申请人： Akira Serizawa ,  Byungeok Seo

发明人： Akira Serizawa ,  Byungeok Seo

IPC分类号： H02H7/08 ,  H02H5/04

CPC分类号： H02H7/0833 ,  H02H5/044 ,  Y10S388/934

摘要： The present invention provides an apparatus and a method for accurately detecting abnormal conditions of a motor. A ΔTc/Tj detector detects a difference (ΔTc) between an environment temperature and a temperature of a field-effect transistor (FET) which turns on and off electric power supplied to a DC motor. A diagnosis control unit detects abnormal conditions such as a motor lock and a short circuit of the DC motor based upon the obtained difference. When the motor lock has been detected, the diagnosis control unit controls a pulse width modulation (PWM) control unit and a PWM oscillator (PWMOSC) and makes a frequency and duty cycle of a PWM signal lower. When the short circuit has been detected, the diagnosis control unit controls a gate driver and turns off the FET.

摘要翻译： 本发明提供一种用于精确检测电动机的异常状况的装置和方法。 A＆Dgr; Tc / Tj检测器检测环境温度和导通和断开向DC电动机供电的场效应晶体管（FET）的温度之间的差（＆Dgr; Tc）。 诊断控制单元基于获得的差异来检测诸如电动机锁定和DC电动机的短路的异常情况。 当检测到电动机锁定时，诊断控制单元控制脉宽调制（PWM）控制单元和PWM振荡器（PWMOSC），并使PWM信号的频率和占空比降低。 当检测到短路时，诊断控制单元控制栅极驱动器并关断FET。

公开(公告)号：US20080055799A1

公开(公告)日：2008-03-06

申请号：US11882378

申请日：2007-08-01

申请人： Akira Serizawa ,  Byungeok Seo

发明人： Akira Serizawa ,  Byungeok Seo

IPC分类号： H02H5/04

CPC分类号： H02H7/0833 ,  H02H5/044 ,  Y10S388/934

摘要： The present invention provides an apparatus and a method for accurately detecting abnormal conditions of a motor. A ΔTc/Tj detector detects a difference (ΔTc) between an environment temperature and a temperature of a field-effect transistor (FET) which turns on and off electric power supplied to a DC motor. A diagnosis control unit detects abnormal conditions such as a motor lock and a short circuit of the DC motor based upon the obtained difference. When the motor lock has been detected, the diagnosis control unit controls a pulse width modulation (PWM) control unit and a PWM oscillator (PWMOSC) and makes a frequency and duty cycle of a PWM signal lower. When the short circuit has been detected, the diagnosis control unit controls a gate driver and turns off the FET.

摘要翻译： 本发明提供一种用于精确检测电动机的异常状况的装置和方法。 DeltaTc / Tj检测器检测环境温度和导通和断开向DC电动机供电的场效应晶体管（FET）的温度之间的差（DeltaTc）。 诊断控制单元基于获得的差异来检测诸如电动机锁定和DC电动机的短路的异常情况。 当检测到电动机锁定时，诊断控制单元控制脉宽调制（PWM）控制单元和PWM振荡器（PWMOSC），并使PWM信号的频率和占空比降低。 当检测到短路时，诊断控制单元控制栅极驱动器并关断FET。