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    • 2. 发明申请
    • CONTROL DEVICE AND CONTROL METHOD
    • 控制装置和控制方法
    • US20080315815A1
    • 2008-12-25
    • US12120317
    • 2008-05-14
    • Akira SERIZAWAByungeok SEOHiroo YABE
    • Akira SERIZAWAByungeok SEOHiroo YABE
    • H02P31/00
    • F01P7/08F01P2005/046F01P2031/24H02P29/0241
    • 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.
    • 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。
    • 4. 发明授权
    • Wiper controller with fault detector device
    • 雨刮器带故障检测装置
    • US06624604B2
    • 2003-09-23
    • US09987315
    • 2001-11-14
    • Akihiko TorikoshiAkira SerizawaYuichi Nakazawa
    • Akihiko TorikoshiAkira SerizawaYuichi Nakazawa
    • H02P700
    • B60S1/08Y10S318/02
    • A wiper control device in which an abnormal condition of a FET is detected by distinguishing an action of an overheat-cutting protective function normally difficult to be detected with measuring the drain voltage of the FET and by which the control of the pertinent FET is restrained upon the detection of abnormality so as to prevent a short circuit in the wiper control device from occurring. When an FETB (Qb) is set on, whether or not a drain voltage Vd is lower than Vpe ({fraction (l/2)}VG) is judged (step S5), and if lower, it is judged that the drain and ground is short-circuited, that is, an overheat-cutting protective function is acted, and “1” is added to the number of times of short circuit detection Perror (step S7). It is judged whether or not the added value of the number of times of short circuit detection Perror reaches a reference value (step S11). If the reference value is reached, it is judged that the drain and ground is actually short-circuited, that is, an overheat-cutting protective function is acted, and each action of a FETA (Qa) and FETB (Qb) is halted (step S13).
    • 一种雨刮器控制装置,其中通过区分通常难以检测的过热切割保护功能的动作来检测FET的异常状况,并且通过测量FET的漏极电压并且限制相关FET的控制 检测异常,以防止雨刷控制装置中的短路发生。 当FETB(Qb)置为ON时,漏极电压Vd是否低于Vpe({分数(1 / 2VG))(步骤S5),如果较低,则判断漏极和接地短 即,进行过热切断保护功能,并将“1”加到短路检测Perror的次数(步骤S7),判断次数的相加值 短路检测Perror达到参考值(步骤S11),如果达到参考值,则判断为漏极和接地实际上短路,即,过热保护功能被动作,并且每个动作 的FETA(Qa)和FETB(Qb)停止(步骤S13)。
    • 5. 发明授权
    • Combustion chamber
    • 燃烧室
    • US5775288A
    • 1998-07-07
    • US698387
    • 1996-08-15
    • Yuichi SuzukiAkira Serizawa
    • Yuichi SuzukiAkira Serizawa
    • F02B23/10F02B31/08F02B75/12F02D13/02F02F1/10F02F1/24F02F1/42F02F3/26F02M69/04
    • F02D13/0226F02B23/104F02B31/085F02D13/0234F02F1/108F02F1/4214F02F3/26F02M69/045F02B2023/106F02B2023/108F02B2075/125F02B2275/18F02B2275/48F02D2041/389F02F2001/245Y02T10/123Y02T10/125Y02T10/146Y02T10/18
    • An internal combustion engine having a direct cylinder injection and including a variable valve timing mechanism for at least changing the time of closing of the intake valve. The fuel injection timing and intake valve closing timing are controlled so that under low and mid-range engine speeds, but high loads, the intake valve is closed before the piston reaches bottom dead center position on its intake stroke so as to reduce the effective compression ratio. Fuel injection timing is begun before the piston has reached its bottom dead center position during the intake stroke under high-speed, high-load conditions and is not initiated until after the piston has reached its bottom dead center position and begun its compression stroke under other engine running conditions. The engine is provided with an injector location and piston with a bowl in its head that improves fuel stratification under at least some running conditions so as to permit lean burn operation. The intake valves are offset to one side of a plane containing the axis of the cylinder bore, and the fuel injector is disposed between a pair of intake ports and below them so as to direct its injection axis toward the exhaust side and toward the recess in the head of the piston. A projection on the cylinder head surface prevents direct impingement of the fuel on the spark plug and also directs some of the injected fuel toward the exhaust valves to improve vaporization and exhaust valve cooling.
    • 一种具有直接气缸喷射并且包括用于至少改变进气门的关闭时间的可变气门正时机构的内燃机。 控制燃料喷射正时和进气门关闭正时,使得在低和中档发动机转速但高负载下,进气门在活塞到达进气行程的下死点位置之前关闭,以便降低有效压缩 比。 在高速,高负荷条件下,在进气冲程中活塞达到下死点位置之前,燃油喷射正时开始,直到活塞达到下死点位置为止,并在其他压力下开始压缩冲程 发动机运行条件。 发动机设置有喷射器位置和活塞,其顶部具有碗,其在至少一些运行条件下改善燃料分层,以允许稀薄燃烧操作。 进气门偏移到包含气缸孔的轴线的平面的一侧,并且燃料喷射器设置在一对进气口和下方之间,以便将其喷射轴线引向排气侧并朝向凹部 活塞的头部。 气缸盖表面上的突起防止燃料直接撞击到火花塞上,并且还将一些喷射的燃料引导到排气门以改善汽化和排气阀的冷却。
    • 6. 发明授权
    • Control device and control method
    • 控制装置及控制方法
    • US07859213B2
    • 2010-12-28
    • US12120317
    • 2008-05-14
    • Akira SerizawaByungeok SeoHiroo Yabe
    • Akira SerizawaByungeok SeoHiroo Yabe
    • H02H7/00
    • F01P7/08F01P2005/046F01P2031/24H02P29/0241
    • 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.
    • 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。
    • 7. 发明授权
    • Apparatus and method for detecting abnormal conditions of a motor
    • 用于检测电机异常情况的装置和方法
    • US07759891B2
    • 2010-07-20
    • US11882378
    • 2007-08-01
    • Akira SerizawaByungeok Seo
    • Akira SerizawaByungeok Seo
    • H02H7/08H02H5/04
    • H02H7/0833H02H5/044Y10S388/934
    • 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.
    • 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。
    • 8. 发明申请
    • Apparatus and method for detecting abnormal conditions of a motor
    • 用于检测电机异常情况的装置和方法
    • US20080055799A1
    • 2008-03-06
    • US11882378
    • 2007-08-01
    • Akira SerizawaByungeok Seo
    • Akira SerizawaByungeok Seo
    • H02H5/04
    • H02H7/0833H02H5/044Y10S388/934
    • 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.
    • 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。