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    • 2. 发明授权
    • Catalyst degradation diagnosing apparatus for air fuel ratio control
system
    • 用于空气燃料比率控制系统的催化降解诊断装置
    • US5119628A
    • 1992-06-09
    • US719703
    • 1991-06-27
    • Hideki UemaKohei MitsuhashiMasaaki UchidaYuki Nakajima
    • Hideki UemaKohei MitsuhashiMasaaki UchidaYuki Nakajima
    • F02D41/14F01N11/00F02D41/22F02D45/00
    • F01N11/007F01N2550/02F01N2900/0421Y02T10/47
    • To reliably diagnose catalyst degradation in an air fuel ratio control system without being subjected to the influence of engine operating conditions, a front O.sub.2 sensor output VFO and a rear O.sub.2 sensor output VRO are detected on both the upstream and downstream sides of catalytic converter; air fuel ratio feedback correction coefficients .alpha. are determined on the basis of basic feedback control constants P.sub.R,L or i.sub.R,L and correction values PHOS according to rich and lean air fuel ratio conditions; periods T and amplitudes .alpha..sub.R -.alpha..sub.L of the air fuel ratio feedback correction coefficient .alpha. are measured; a rich discriminating catalyst diagnosing slice level RSLH2 is set higher than a rich discriminating air fuel ratio feedback controlling slice level RSH1 and a lean discriminating catalyst diagnosing slice level RSLL2 is set lower than a lean discriminating air fuel ratio feedback controlling slice level RSLL1 in such a way that RSLH2 increases and RSLL2 decreases with increasing product of the period and amplitude of .alpha.; the number j.sub.F of times when the front sensor output VFO changes across a stoichiometric mixture ratio SL.sub.F is connected; the number j.sub.R of times when the rear sensor output VRO changes across the slice levels RSLH2 and RSLL2 is counted; and the catalyst is determined to be degraded if j.sub.R /j.sub.F .gtoreq.k, where k
    • 为了可靠地诊断空燃比控制系统中的催化剂劣化而不受发动机运行条件的影响,在催化转化器的上游侧和下游侧检测前O2传感器输出VFO和后O2传感器输出VRO; 基于富空燃比条件,基于基本反馈控制常数PR,L或iR,L和校正值PHOS来确定空燃比反馈校正系数α; 测量空燃比反馈校正系数α的周期T和幅度αR-αL; 诊断限幅电平RSLH2的丰富鉴别催化剂被设定为高于富识别空燃比反馈控制限幅电平RSH1,并且贫鉴别催化剂诊断限幅电平RSLL2设定为低于贫气识别用空燃比反馈控制限幅电平RSLL1 RSLH2增加的方式和RSLL2随着α的周期和幅度的乘积的增加而减小; 连接前传感器输出VFO在化学计量混合比SLF上变化的次数jF; 对后传感器输出VRO在切片电平RSLH2和RSLL2之间变化的次数jR进行计数; 如果jR / jF> / = k,则确定催化剂降解,其中k <1。
    • 6. 发明授权
    • Control apparatus and method for automatic transmission
    • 自动变速箱控制装置及方法
    • US07666113B2
    • 2010-02-23
    • US11772988
    • 2007-07-03
    • Tomoaki HonmaMasaaki UchidaShusaku KatakuraYoshinobu KawamotoSadamu Fujiwara
    • Tomoaki HonmaMasaaki UchidaShusaku KatakuraYoshinobu KawamotoSadamu Fujiwara
    • F16H31/00
    • F16H61/061F16H61/686F16H2061/0496
    • A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve higher and lower speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity. The automatic transmission realizes a down-shift by changeover between first and second frictional engagement elements based on the individual torque capacity during a vehicle power-off travel.
    • 一种自动变速器的控制装置,具有分别实现上下档位的第一和第二摩擦接合元件,包括设定摩擦接合元件的输入和输出侧之间的转速差的目标值确定部,总转矩容量 计算总转矩容量的计算部分,设定总转矩容量与第一和第二摩擦接合元件的分配比率的分配比率确定部分,计算分别需要的第一和第二摩擦接合的各个转矩容量的单个扭矩能力计算部分 元件和接合控制部分,其根据各个扭矩能力控制第一和第二摩擦接合元件的接合状态。 基于车辆断电行驶期间的各个扭矩容量,自动变速器通过第一和第二摩擦接合元件之间的转换而实现向下换档。
    • 8. 发明授权
    • Clutch control apparatus and method
    • 离合器控制装置及方法
    • US07356400B2
    • 2008-04-08
    • US11362206
    • 2006-02-27
    • Tomoaki HonmaMasaaki UchidaShusaku KatakuraYoshinobu Kawamoto
    • Tomoaki HonmaMasaaki UchidaShusaku KatakuraYoshinobu Kawamoto
    • G06F19/00
    • F16D48/06F16D2500/1026F16D2500/30406F16D2500/50224F16D2500/70426F16D2500/7044Y10T477/6203Y10T477/638Y10T477/753Y10T477/755
    • A clutch control apparatus for a power transmission system including an input rotating member and an output rotating member. The clutch control apparatus includes a friction clutch, and a control unit. The control unit sets a first desired clutch torque setting in accordance with a clutch slip indicator; sets a second desired clutch torque setting to an amount of torque input from the input rotating member to the friction clutch; controls the clutch torque to be the first desired clutch torque setting during a starting stage of the friction clutch; controls the clutch torque to be the second desired clutch torque setting during a steady-state stage of the friction clutch; and controls the clutch torque to gradually change from the first desired clutch torque setting to the second desired clutch torque setting during a transition stage between the starting stage and the steady-state stage.
    • 一种用于动力传动系统的离合器控制装置,包括输入旋转构件和输出旋转构件。 离合器控制装置包括摩擦离合器和控制单元。 控制单元根据离合器滑动指示器设定第一期望的离合器扭矩设定值; 将第二期望离合器转矩设定值设定为从输入转动件输入到摩擦离合器的转矩量; 在摩擦离合器的起动阶段将离合器扭矩控制为第一期望的离合器扭矩设定; 在摩擦离合器的稳态阶段将离合器扭矩控制为第二期望的离合器扭矩设定; 并且在起动阶段和稳态阶段之间的转变阶段期间控制离合器扭矩从第一期望离合器转矩设定逐渐变化到第二期望离合器转矩设定。
    • 9. 发明申请
    • CONTROL APPARATUS AND METHOD FOR AUTOMATIC TRANSMISSION
    • 自动变速器的控制装置和方法
    • US20080020897A1
    • 2008-01-24
    • US11772963
    • 2007-07-03
    • Tomoaki HONMAMasaaki UchidaShusaku KatakuraYoshinobu KawamotoSadamu Fujiwara
    • Tomoaki HONMAMasaaki UchidaShusaku KatakuraYoshinobu KawamotoSadamu Fujiwara
    • F16H61/06
    • F16H61/061F16H61/686F16H2061/0492Y10T477/6936Y10T477/69363Y10T477/6937Y10T477/693762Y10T477/6939
    • A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve lower and higher speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity. The automatic transmission realizes an up-shift by changeover between first and second frictional engagement elements based on the individual torque capacity during a vehicle power-on travel.
    • 一种自动变速器的控制装置,具有分别实现低速档和高速档位的第一和第二摩擦接合元件,包括设定摩擦接合元件的输入和输出侧之间的转速差的目标值确定部分,总转矩容量 计算总转矩容量的计算部分,设定总转矩容量与第一和第二摩擦接合元件的分配比率的分配比率确定部分,计算分别需要的第一和第二摩擦接合的各个转矩容量的单个扭矩能力计算部分 元件和接合控制部分,其根据各个扭矩能力控制第一和第二摩擦接合元件的接合状态。 基于车辆上电行驶期间的各个扭矩容量,自动变速器通过第一和第二摩擦接合元件之间的切换实现上移。