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    • 3. 发明授权
    • Control system for linear solenoid valve
    • 线性电磁阀控制系统
    • US5790364A
    • 1998-08-04
    • US648718
    • 1996-05-16
    • Kazuhiro MikamiKenji SuzukiMuneo KusafukaMasayuki SugiuraHiroshi Tsutsui
    • Kazuhiro MikamiKenji SuzukiMuneo KusafukaMasayuki SugiuraHiroshi Tsutsui
    • F15B13/044F16K31/06G05D16/20H01H47/32H01H47/02
    • H01H47/325G05D16/2013
    • The control system for a linear solenoid valve controls output of an oil pressure according to a current value to be fed to the linear solenoid which operates the linear solenoid valve. A solenoid current monitor detects the current value fed to the linear solenoid and an IG voltage monitor detects the voltage level of the battery. A linear solenoid current value setting unit sets a target current value according to a target oil pressure level and a duty ratio setting unit sets a duty ratio for applying the battery voltage to the linear solenoid on the basis of signals coming from the current monitor, the voltage monitor and the current value setting unit. A solenoid driver applies the battery voltage to the linear solenoid for a predetermined period in accordance with the duty ratio set by the duty ratio setting unit. The duty ratio setting unit, in turn, includes: a feedback correction unit for feedback correction of the duty ratio, in accordance with the difference between the current value detected by the monitor and the target current value set by the current value setting unit, so that the current value fed to the linear solenoid approaches the target current value; and a voltage correction unit for further correcting the duty ratio, as previously corrected by the feedback correction unit, on the basis of the voltage level of the battery, as detected by the voltage monitor.
    • 用于线性电磁阀的控制系统根据当前值来控制油压的输出,以将其输送到操作线性电磁阀的线性螺线管。 电磁线圈电流监测器检测馈送到线性电磁线圈的电流值,IG电压监视器检测电池的电压电平。 线性电磁线圈电流值设定单元根据目标油压水平设定目标电流值,占空比设定单元基于来自电流监视器的信号,设定将电池电压施加到线性电磁阀的占空比, 电压监视器和当前值设置单元。 螺线管驱动器根据由占空比设定单元设定的占空比将电池电压施加到线性螺线管一段规定时间。 负载比设定单元又包括:反馈校正单元,用于根据由监视器检测的电流值与由当前值设定单元设定的目标电流值之间的差异,对占空比进行反馈校正,因此, 馈送到线性电磁阀的电流值接近目标电流值; 以及电压校正单元,用于如先前由反馈校正单元校正的,根据电压监视器检测到的电池电压水平进一步校正占空比。
    • 7. 发明授权
    • Method of and apparatus for controlling motor vehicle during speed
change operation
    • 变速运转时机动车辆控制方法及装置
    • US4933851A
    • 1990-06-12
    • US207721
    • 1988-06-16
    • Yasunobu ItoKenji Suzuki
    • Yasunobu ItoKenji Suzuki
    • B60W10/04B60W10/06B60W10/10B60W10/11F16H59/46F16H61/04F16H61/10F16H63/40F16H63/50
    • B60W30/18B60W10/04B60W10/11B60W30/1819B60W2510/1005F16H37/042F16H59/46F16H63/502Y10T477/67Y10T477/677
    • In engine torque control in a motor vehicle having an engine and a stepping type of transmission, input and output speeds of the transmission are constantly detected by sensors disposed in input and output portions of the transmission, thereby obtaining a gear ratio (measured value) of the transmission. If the ratio of the difference between this gear ratio and a predetermined gear ratio before the gearshift (theoretical value) to the latter gear ratio before the gearshift exceeds a predetermined value, the start of gearshift is decided. If the ratio of the difference between the gear ratio of the transmission (measured value) and a predetermined gear ratio after the gearshift (theoretical value) to the latter gear ratio after the gearshift becomes smaller than a predetermined value, the end of gearshift is decided. A set level by which the torque of the engine should be reduced during the period between the start and end of the gearshift is determined by reading reduction data previously set with respect to the throttle opening and the type of gearshift. The torque output from the engine is reduced on the basis of the reduction data by controlling the ignition timing retardation angle or the fuel injection rate.
    • 在具有发动机和步进式变速器的机动车辆的发动机转矩控制中,通过设置在变速器的输入和输出部分的传感器不断地检测变速器的输入和输出速度,从而获得变速器的传动比(测量值) 传输。 如果变速前的变速比与变速前的预定齿轮比(理论值)与后齿轮比之间的差的比率超过规定值,则判定变速开始。 如果变速器的变速比(测量值)与变速后的预定齿轮比(理论值)与变速后的后齿轮比之间的差的比率变得小于预定值,则确定变速结束 。 在换挡开始和结束之间的期间,发动机扭矩应减小的设定水平是通过读取先前关于节气门开度设定的减速数据和换档类型来确定的。 基于减少数据,通过控制点火正时延迟角度或燃料喷射速度来减小发动机的扭矩输出。