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    • 1. 发明专利
    • Continuously variable transmission
    • 连续可变传输
    • JP2012141066A
    • 2012-07-26
    • JP2012099479
    • 2012-04-25
    • Jatco LtdNissan Motor Co Ltdジヤトコ株式会社日産自動車株式会社
    • JOZAKI TATEKISUZUKI HIDEAKINONOMURA RYOSUKEINOUE MAMIKOTAKAHASHI SEIICHIROOCHIAI TATSUOKOGA MASAHITOUCHIDA MASAAKIMONNO RYOJI
    • F16H61/00F16H61/662
    • PROBLEM TO BE SOLVED: To improve starting performance at the next starting by bringing the speed change ratio of a variator near the lowest speed change ratio as much as possible during rapid deceleration.SOLUTION: A continuously variable transmission 4 includes a variator 20 for continuously changing the speed change ratio; and a sub transmission mechanism 30 disposed in series with the variator 20 and including a first speed change position as an advance speed change position and a second speed change position having a speed change ratio smaller than that of the first speed change position. When changing the speed change position of the sub transmission mechanism 30, a transmission controller 12 performs coordinated speed change for causing the variator 20 to perform the speed change in a direction reverse to the speed change direction of the sub transmission mechanism 30 while causing the sub transmission mechanism 30 to perform the speed change. During rapid deceleration while the sub transmission mechanism 30 selects the second speed change position, the coordinated speed change is not performed and the variator 20 is down-shifted while down-shifting the sub transmission mechanism 30 from the second speed change position to the first speed change position.
    • 要解决的问题:通过在快速减速期间尽可能多地使变速器的变速比接近最低变速比来提高下一次起动时的起动性能。 解决方案:无级变速器4包括用于连续改变变速比的变速器20; 以及副变速机构30,其与变速器20串联设置,并且包括作为前进变速位置的第一变速位置和具有小于第一变速位置的变速比的变速比的第二变速位置。 在变更副变速机构30的变速位置时,变速器控制器12进行协同变速,使变速器20在与副变速机构30的变速方向相反的方向上进行变速, 传动机构30进行变速。 在副变速机构30选择第二变速档位时,在副变速机构30选择第二变速位置时,不进行协调变速,并且将副变速机构30从第二变速位置向下移动到第一速度时,变换器20下变频 改变位置 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Control apparatus for automatic transmission
    • 自动变速器控制装置
    • JP2010209946A
    • 2010-09-24
    • JP2009054026
    • 2009-03-06
    • Jatco LtdNissan Motor Co Ltdジヤトコ株式会社日産自動車株式会社
    • TAKAHASHI SEIICHIROOCHIAI TATSUOUCHIDA MASAAKIKOGA MASAHITOMONNO RYOJIJOZAKI TATEKISUZUKI HIDEAKINONOMURA RYOSUKEINOUE MAMIKO
    • F16H61/04F16H37/02F16H59/14F16H59/42F16H59/68F16H61/662F16H61/686
    • F16H37/022F16H59/14F16H61/0437F16H61/66259F16H2037/023F16H2059/144F16H2061/661F16H2306/30Y10T477/6217Y10T477/6425Y10T477/688Y10T477/693
    • PROBLEM TO BE SOLVED: To prevent a shift shock caused by change to a gear ratio different from a target gear ratio when an ON/OFF state of a power is switched during shift control to a target engine speed by shifting a stepped transmission mechanism between an engagement side and a disengagement side. SOLUTION: This control apparatus for the automatic transmission includes a sub transmission mechanism AT having a high clutch H/C and a low brake L/B and deciding a desired shift stage by combining engagement and disengagement of the clutch H/C and the brake L/B, a power ON/OFF state determining means for determining the ON/OFF state of the power for driving the transmission mechanism AT, and a continuously variable transmission mechanism CVT for controlling transmission so as to achieve the target speed ratio in corporation with shift control of the transmission mechanism AT. When the power ON/OFF state is switched from OFF to ON in an inertia phase during power OFF up-shift of the transmission mechanism AT, the brake L/B on the disengagement side is rapidly disengaged, and the clutch H/C is rapidly engaged so that the change of input torque of the transmission mechanism AT is suppressed by the clutch H/C on the engagement side. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了防止当通过转换阶梯式变速器在变速控制期间将动力的接通/断开状态切换到目标发动机转速时,改变为与目标齿轮比不同的齿轮比所引起的换档冲击 接合侧和脱离侧之间的机构。 解决方案:用于自动变速器的这种控制装置包括具有高离合器H / C和低制动器L / B的副传动机构AT,并且通过将离合器H / C的接合和分离与 制动器L / B,用于确定用于驱动变速机构AT的动力的开/关状态的动力ON / OFF状态确定装置,以及用于控制变速器的无级变速器传动机构CVT,以实现目标速度比 公司与传动机构AT的变速控制。 当在变速机构AT的动力OFF升档期间,在惯性阶段中将电源ON / OFF状态从OFF切换为ON时,分离侧的制动器L / B迅速脱离,离合器H / C迅速 从而通过接合侧的离合器H / C来抑制变速机构AT的输入转矩的变化。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Shift control device of belt type continuously variable transmission
    • 带式连续可变变速器的变速控制装置
    • JP2007211855A
    • 2007-08-23
    • JP2006031083
    • 2006-02-08
    • Jatco Ltdジヤトコ株式会社
    • KIMURA MASANORIOCHIAI TATSUO
    • F16H61/00F16H59/24F16H59/40F16H59/42F16H59/72F16H61/682
    • F16H61/66259Y10T477/624Y10T477/6242
    • PROBLEM TO BE SOLVED: To improve shift responsiveness while limiting a driving frequency for preventing the loss of synchronism of a step motor. SOLUTION: This shift control device of the belt type continuously variable transmission has a pulley rotating speed detecting means for detecting a rotating speed of a primary pulley or a secondary pulley, and a shift control part 32 controlling hydraulic pressure for determining the gear ratio of the continuously variable transmission 10 by operating the step motor 40. A driving speed of the step motor 40 is limited with two or more of the temperature of a hydraulic fluid of the shift control part 32, the gear ratio of the continuously variable transmission 10 and the rotating speed detected by the pulley rotating speed detecting means, as a parameter. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提高换档响应性,同时限制驱动频率以防止步进电机的同步失去。 解决方案:带式无级变速器的变速控制装置具有用于检测主带轮或次级带轮的转速的带轮转速检测装置和控制用于确定齿轮的液压的变速控制部32 通过操作步进电动机40,无级变速器10的比例。步进电动机40的驱动速度受到变速控制部32的液压油的温度,无级变速器的变速比的两个以上的限制 10和由皮带轮转速检测装置检测的转速作为参数。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Control device for v-belt type continuously variable transmission
    • 用于V型皮带连续可变传动的控制装置
    • JP2005106186A
    • 2005-04-21
    • JP2003340689
    • 2003-09-30
    • Jatco Ltdジヤトコ株式会社
    • KIMURA MASANORIOCHIAI TATSUOYONEDA KENJIJOZAKI TATEKICHIBAHARA TAKESHISHIOMI ATSUSHI
    • F16H9/00F16H59/72F16H61/02F16H61/662
    • F16H61/66254F16H59/72Y10T477/619Y10T477/6242
    • PROBLEM TO BE SOLVED: To provide a continuously variable transmission capable of improving start acceleration performance. SOLUTION: In a V-belt type continuously variable transmission controlling a primary pulley and a secondary pulley to maintain a target speed gear ratio, temperature of a V-belt 12 is estimated (20) based on relation between gear ratio and rotation speed of the primary pulley 10, it is determined whether the target gear ratio is a gear ratio making temperature of the V-belt exceed a first limit temperature, detected rotation speed of the primary pullet is compared with first predetermined rotation speed raising temperature of the V-belt to the first limit temperature of the V-belt (S2), time during which the detected rotation speed exceeds the predetermined rotation speed (S3), and the target gear ratio is switched to a predetermined gear ratio in high side (S5) when the measurement time exceeds the first predetermined time (S4). COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供能够提高起动加速性能的无级变速器。 解决方案:在控制初级皮带轮和次级皮带轮以维持目标速度齿轮比的V型皮带型无级变速器中,基于传动比和旋转之间的关系来估计V形皮带12的温度(20) 初级带轮10的速度,判定目标齿轮比是否为V形带的齿轮比制作温度超过第一极限温度,将初级母盘的检测转速与第一预定转速提高温度进行比较 V形带到V带的第一极限温度(S2),检测到的转速超过预定转速(S3)的时间,目标齿轮比在高侧切换到预定的齿轮比(S5 )当测量时间超过第一预定时间时(S4)。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Control device of automatic transmission
    • 自动变速器控制装置
    • JP2004108276A
    • 2004-04-08
    • JP2002273009
    • 2002-09-19
    • Jatco Ltdジヤトコ株式会社
    • KANG JIHOONKAWAMURA YASUTAKAOCHIAI TATSUOOKAHARA HIROBUMI
    • B60W10/04B60W10/06B60W10/10B60W10/101F02D29/00F02D45/00F16H59/06F16H59/14F16H59/46F16H59/72F16H61/00F16H61/02F16H61/662F16H63/50B60K41/00B60K41/12
    • F16H61/66259F16H35/10
    • PROBLEM TO BE SOLVED: To improve the operability of an automatic transmission at extremely low temperatures where an oil amount is hard to be secured. SOLUTION: This control device of an automatic transmission comprises an actual gear shift ratio detection means S4 detecting the actual gear shift ratio of the automatic transmission, a hydraulic pressure detection means S5 detecting a hydraulic pressure from a hydraulic pressure supply means, a torque capacity calculation means S6 calculating a torque transmittable by the automatic transmission based on the actual gear shift ratio and hydraulic pressure, an input torque calculation means S8 calculating the input torque of the automatic transmission, and a torque down amount calculation means S9 calculating the reduced amount of engine output torque from a difference between the input torque and the transmittable torque. The engine output torque is reduced according to the reduced amount of the engine output torque. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了提高难以确保油量的极低温度下的自动变速器的可操作性。 解决方案:该自动变速器的控制装置包括检测自动变速器的实际变速比的实际变速比检测装置S4,检测来自液压供给装置的液压的液压检测装置S5, 扭矩容量计算单元S6,根据实际变速比和液压计算自动变速器传递的转矩;计算自动变速器的输入转矩的输入转矩运算单元S8;计算减速机构的转矩下降量运算单元S9; 从输入转矩和可传递扭矩之差的发动机输出扭矩量。 发动机输出扭矩根据发动机输出转矩的减少量而减小。 版权所有(C)2004,JPO