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    • 2. 发明授权
    • Hydraulic control device for an automatic transmission
    • 液压控制装置用于自动变速器
    • US5038638A
    • 1991-08-13
    • US300405
    • 1989-01-23
    • Youichi HayakawaYoshinari KuwayamaYoshihiro Yamada
    • Youichi HayakawaYoshinari KuwayamaYoshihiro Yamada
    • F16H3/66F16H61/02F16H61/08F16H61/10
    • F16H61/0206Y10T477/693635Y10T477/69387
    • A sequence valve for the first brake (B.sub.1) is installed, and the forward four speed modes are attained by two solenoid valves. At in the second speed mode of D range, hydraulic pressure is applied to the second brake hydraulic servo to restrain certain rotating element through the one-way clutch. After the application to the second brake hydraulic servo is completed, then the hydraulic pressure is applied to the sequence valve for the first brake, and through the sequence valve, the hydraulic pressure is applied to the first brake hydraulic servo. Accordingly, when up shifting from the first speed mode to the second speed mode, the shifting is conducted smoothly by the engagement of the second brake, after that the first brake is engaged. When up shifting from the third speed mode to the fourth speed mode, the first brake hydraulic servo is swiftly drained by the 3-4 shift valve. Consequently, the second clutch is engaged under the operation of the one-way clutch operated by the engagement of the second brake.
    • 安装第一制动器(B1)的顺序阀,通过两个电磁阀实现前进四速模式。 在D档的二速模式下,液压被施加到第二制动液压伺服机构,以通过单向离合器来限制某些旋转元件。 在第二制动液压伺服系统的应用完成之后,液压被施加到第一制动器的顺序阀,并且通过顺序阀将液压施加到第一制动液压伺服系统。 因此,当从第一速度模式向第二速度模式上升时,通过第二制动器的接合,第一制动器接合之后,平滑地进行换档。 当从第三速度模式向第四速度模式转换时,第三制动液压伺服系统通过3-4换档阀快速排出。 因此,第二离合器在由第二制动器的接合操作的单向离合器的操作下接合。
    • 3. 发明授权
    • Fail-safe hydraulic control valves in an automatic transmission
    • 自动变速器中的故障安全液压控制阀
    • US4995285A
    • 1991-02-26
    • US293253
    • 1989-01-04
    • Youichi HayakawaYoshinari KuwayamaYoshihiro Yamada
    • Youichi HayakawaYoshinari KuwayamaYoshihiro Yamada
    • F16H3/66F16H61/00F16H61/28F16H61/686
    • F16H61/12F16H2061/1232F16H2061/1268F16H2200/0043F16H2306/00F16H37/042F16H61/686Y10S477/906Y10T477/6934
    • The first and second emergency control valves are a back up device in case all solenoid valves are in failure (non electrified). When the first and second solenoid valves are all off due to wire disconnection and the like in case the manual valve is at the 3 range, a 1-2 shift valve is constrained by the first emergency control valve, so that the hydraulic control device becomes the third speed mode. In case t#e manual shift lever is at the 2 range and a 2-3 shift valve, the 2-3 shift valve are constrained by the first and the second emergency control valves, so that the hydraulic control device becomes the second speed mode. In case the manual shift lever is at the 1 range, the first emergency control valve is constrained, and the 2-3 shift valve is constrained by the second emergency control valve, so that the hydraulic control device becomes the first speed mode. When the manual valve is at the D range, the fourth speed mode is attained in case the first and second solenoid valves are all off.
    • 第一和第二应急控制阀是备用装置,以防所有电磁阀故障(非电气化)。 当第一和第二电磁阀在手动阀处于3档的情况下由于断线等而全部关闭时,1-2变速阀由第一应急控制阀约束,使得液压控制装置变为 第三速模式。 如果t-e手动变速杆处于2档位置和2-3档换档阀,则2-3换档阀由第一和第二应急控制阀约束,使得液压控制装置成为第二速度模式。 在手动变速杆处于1档的情况下,第一紧急控制阀被限制,并且2-3换档阀被第二应急控制阀约束,使得液压控制装置成为第一速度模式。 当手动阀处于D档时,在第一和第二电磁阀全部关闭的情况下,达到第四速度模式。