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1. 发明专利

JP2004036715A Belt clamping force determination device, belt speed estimation device, belt slip ratio estimation device, and belt slip detection device 有权
公开(公告)号：JP2004036715A
公开(公告)日：2004-02-05
申请号：JP2002193037
申请日：2002-07-02
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , OSAWA MASATAKA , SUZUKI HIDEYUKI , IWATSUKI KUNIHIRO , HOSHIYA KAZUMI , OSHIUMI TAKAHIRO , NAKAWAKI YASUNORI
IPC分类号： F16H9/00 , F16H61/02
摘要： PROBLEM TO BE SOLVED: To suppress a fuel economy from lowering by determining the optimum belt clamping force. SOLUTION: A belt speed calculation circuit 26 calculates a belt speed by using, for a CVT torque transmission model, an engine torque, primary and secondary rotational speeds, primary and secondary applied diameters, and a tire rotating inertia torque. A belt slip ratio calculation circuit 28 calculates a belt slip ratio based on a belt speed and a sheave speed calculated by a sheave speed calculation circuit 27. A belt clamping force determination circuit 40 determines the belt clamping force by using the belt slip ratio and a belt μ max. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003021578A Detector for slide of friction gearing 有权
标题翻译：用于滑动齿轮的检测器
公开(公告)号：JP2003021578A
公开(公告)日：2003-01-24
申请号：JP2001208123
申请日：2001-07-09
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , OSAWA MASATAKA , NAKAWAKI YASUNORI , IWATSUKI KUNIHIRO
IPC分类号： G01P3/56 , F16H9/00 , F16H15/38 , G01M13/02
摘要： PROBLEM TO BE SOLVED: To prevent excessive slide in a part, in which friction is generated in a friction gearing used to transmit a driving force due to friction.
SOLUTION: Rotational speeds are detected by input and output rotational speed sensors (100, 102), and the contact radius of a transmission element is calculated on the basis of them (104). On the basis of the input and output speeds and on the basis of the contact radius, the transmission characteristic of the driving force of the friction gearing is calculated (106). On the basis of the characteristic, the stability of a system is determined, and when the system becomes unstable, the excessive slide is determined (108).
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了防止在用于传递由于摩擦引起的驱动力的摩擦传动装置中产生摩擦的部分中的过度滑动。解决方案：旋转速度由输入和输出转速传感器（100,102）检测，传动元件的接触半径根据它们计算（104）。基于输入和输出速度，并且基于接触半径，计算摩擦传动装置的驱动力的传动特性（106）。根据特征，确定系统的稳定性，当系统变得不稳定时，确定过度滑动（108）。

3. 发明专利

JP2006002795A Belt slip predicting device 审中-公开
标题翻译：皮带SLIP预测装置
公开(公告)号：JP2006002795A
公开(公告)日：2006-01-05
申请号：JP2004176757
申请日：2004-06-15
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , SUZUKI HIDEYUKI , OSAWA MASATAKA , IWATSUKI KUNIHIRO , OSHIUMI TAKAHIRO
IPC分类号： F16H9/00 , G01M13/02 , G01N19/02
摘要： PROBLEM TO BE SOLVED: To predict a belt slip early with the actual belt friction characteristic of CVT taken into consideration.
SOLUTION: A μ-gradient calculating circuit 32 determines the belt μ-gradients k
1 and k
2 on the basis of the engine torque, primary rotational angular velocity ω
1 , secondary rotational angular velocity ω
2 , belt winding diameters R
1 and R
2 , primary rotational angular acceleration, secondary rotational angular acceleration, primary belt pinching force F
1 , and the secondary belt pinching force F
2 . A belt slip predicting circuit 33 compares the absolutes of the belt μ-gradients k
1 and k
2 with the threshold produced by a threshold producing circuit 29 and predicts a belt slip when the absolute of either belt μ-gradient has become the threshold or thereunder.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：考虑到CVT的实际皮带摩擦特性，提前预测皮带滑移。解决方案：μ梯度计算电路32基于发动机扭矩，初级旋转角速度ω确定皮带μ梯度k 1 和k 2 次级旋转角速度ω 2 ，皮带卷绕直径R 1 和R 2 ，初级旋转角加速度，次级旋转角加速度，初级带夹紧力F 1 和次级带夹紧力F 2 。皮带滑移预测电路33将皮带μ梯度k 1 和k 2 的绝对值与阈值产生电路29产生的阈值进行比较，并预测皮带滑移任何皮带μ梯度的绝对值已经成为阈值或者以下。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005249061A Controller of belt continuously variable transmission 审中-公开
标题翻译：皮带控制器连续可变传动
公开(公告)号：JP2005249061A
公开(公告)日：2005-09-15
申请号：JP2004059751
申请日：2004-03-03
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , OSAWA MASATAKA , SUZUKI HIDEYUKI , IWATSUKI KUNIHIRO , OSHIUMI TAKAHIRO
IPC分类号： F16H9/00 , F16H61/02 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To effectively enable the detection of critical clamping force.
SOLUTION: In a controller of a belt continuously variable transmission, when a stationary driving condition is detected in a stationary driving condition detecting circuit 10, then, the safety factor is reduced with a constant inclination by the clamping pressure safety factor determining circuit 24, and a secondary hydraulic target value determining circuit 26 determines the target value, based on the safety factor. The secondary hydraulic pressure is controlled to the target value with the secondary hydraulic circuit 28. When a μ ratio calculating circuit 16 calculates a μ ratio which is a ratio of friction coefficient of a primary pulley and a secondary pulley, and the μ ratio change extracted with a μ ratio change extraction circuit 18 exceeds a threshold, the critical clamping pressure of the secondary pulley can be detected with the critical clamping pressure detecting circuit 20.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：有效地实现临界夹紧力的检测。解决方案：在带式无级变速器的控制器中，当在静止驾驶状态检测电路10中检测到静止驾驶状态时，安全系数由夹紧压力安全系数确定电路以恒定的倾斜度减小 24，二级液压目标值确定电路26基于安全系数确定目标值。次级液压回路28将次级液压控制到目标值。当μ比计算电路16计算作为初级带轮和次级带轮的摩擦系数的比率的μ比，并且提取μ比变化时的μ比利用μ比变化提取电路18超过阈值，可以用临界夹紧压力检测电路20检测次级带轮的临界夹紧压力。（C）2005，JPO＆NCIPI

5. 发明专利

JP2005003065A Belt slippage predicting device and belt clamping force control device 有权
标题翻译：皮带滑动预测装置和皮带夹紧力控制装置
公开(公告)号：JP2005003065A
公开(公告)日：2005-01-06
申请号：JP2003166079
申请日：2003-06-11
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , SUZUKI HIDEYUKI , OSAWA MASATAKA , IWATSUKI KUNIHIRO , OSHIUMI TAKAHIRO
IPC分类号： F16H9/00 , F16H61/12 , F16H61/66 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To predict the slippage of a belt for a continuously variable transmission before actually slipped while suppressing a cost increase.
SOLUTION: A band pass filter 25 extracts the band of a peak frequency fc from sheave pressure Pc2. A threshold value comparison circuit 26 detects a macroslip sign when the filtered sheave pressure Pc2 exceeds a threshold value and predicts the slippage of the belt. A clamping force control circuit 27 controls a pressure control valve 14 so that the filtered sheave pressure Pc2 is kept nearly at the threshold value. As a result, the belt μ for the CVT is held nearly at the maximum value.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了预测实际滑动之前的无级变速器传动带的滑动，同时抑制成本增加。解决方案：带通滤波器25从滑轮压力Pc2提取峰值频率fc的频带。阈值比较电路26当经过滤波的滑轮压力Pc2超过阈值时检测宏迹信号，并预测带的滑动。夹紧力控制电路27控制压力控制阀14，使得经过滤波的滑轮压力Pc2几乎保持在阈值。结果，CVT的皮带μμ几乎保持在最大值。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004353703A Belt clamping pressure setting device 有权
公开(公告)号：JP2004353703A
公开(公告)日：2004-12-16
申请号：JP2003149451
申请日：2003-05-27
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , SUZUKI HIDEYUKI , OSAWA MASATAKA , IWATSUKI KUNIHIRO
IPC分类号： F16H9/00 , F16H61/02 , F16H61/662
CPC分类号： F16H61/66272 , F16H59/14 , F16H59/40 , F16H59/42 , F16H2061/66277
摘要： PROBLEM TO BE SOLVED: To prevent the belt slippage of CVT while inhibiting the impairing of the fuel economy without affected by the variation of torque. SOLUTION: A reference clamping pressure operating circuit 25 operates a reference clamping pressure Fc_b based on the input torque Tin detected by an input torque detecting circuit 23, a reduction ratio γ operated by a reduction ratio operating circuit 24, and a specific parameter. A torque variation correction clamping pressure operating circuit 26 determines a torque variation amplitude ratio T_Rlim corresponding to the input rotating frequency and the reduction ratio γ in reference to a torque variation amplitude ratio table, and operates the variation torque ΔT based on the torque variation amplitude ratio T_Rlim. When the varied torque ΔT>0, the correction clamping pressure ΔFc is operated, and when the varied torque ΔT≤0, the correction clamping pressure ΔFc=0. A necessary clamping force operating circuit 27 operates the necessary belt clamping pressure Fc based on the reference clamping pressure Fc_b and the correction clamping pressure ΔFc. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2003049934A Pulley thrust control device of belt-type continuously variable transmission 审中-公开
标题翻译：皮带式连续可变变速器的PULLEY THRUST CONTROL DEVICE
公开(公告)号：JP2003049934A
公开(公告)日：2003-02-21
申请号：JP2001236623
申请日：2001-08-03
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： IWATSUKI KUNIHIRO , NAKAWAKI YASUNORI , NISHIZAWA HIROYUKI , YAMAGUCHI HIROYUKI , SUZUKI HIDEYUKI , OSAWA MASATAKA
IPC分类号： F16H9/00 , F16H37/02 , F16H61/02
摘要： PROBLEM TO BE SOLVED: To correctly determine the ratio of the thrust in each pulley clasping a belt without causing slipping of the belt.
SOLUTION: In a pulley thrust control device, the belt is wound around a drive pulley and a driven pulley, and the thrust of the drive pulley for clasping the belt or the thrust of the driven pulley for clasping the belt can be controlled. The pulley thrust control device comprises a motion state determining means (Steps S7-S11), a thrust reducing means (Step S13), and a thrust ratio determining means (Step S14). The motion state determining means determines the situation in which the torque or the transmission gear ratio acting on the belt- type non-stage transmission hardly varies. The thrust reducing means reduces the thrust when the motion state determining means determine the situation in which the torque or the transmission gear ratio hardly varies. The thrust ratio determining means determines the value of the ratio of the thrust of the drive pulley to that of the driven pulley by reducing the thrust.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：正确地确定在不引起皮带滑动的情况下夹紧皮带的每个滑轮中的推力比。解决方案：在滑轮推力控制装置中，皮带卷绕在驱动皮带轮和从动皮带轮上，用于夹紧皮带的驱动皮带轮的推力或用于夹紧皮带的从动皮带轮的推力。滑轮推力控制装置包括运动状态确定装置（步骤S7-S11），推力减小装置（步骤S13）和推力比确定装置（步骤S14）。运动状态确定装置确定作用在皮带式非平台传动装置上的转矩或变速比几乎不变化的情况。当运动状态确定装置确定转矩或变速比几乎不变化的情况时，推力减小装置减小推力。推力比确定装置通过减小推力来确定驱动滑轮的推力与从动滑轮的推力的比值。

8. 发明专利

JP2003065428A Pulley thrust controller for belt type continuously variable transmission 审中-公开
标题翻译：用于皮带类型连续可变传动的PULLEY控制器
公开(公告)号：JP2003065428A
公开(公告)日：2003-03-05
申请号：JP2002056101
申请日：2002-03-01
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： NISHIZAWA HIROYUKI , YAMAGUCHI HIROYUKI , SUZUKI HIDEYUKI , HANEDA MASATOSHI , TARUYA ICHIRO , OSAWA MASATAKA , NAGASAWA YUJI , IWATSUKI KUNIHIRO , NAKAWAKI YASUNORI , HOSHIYA KAZUMI , OSHIUMI TAKAHIRO
IPC分类号： F16H9/00 , F16H61/02 , F16H61/662
CPC分类号： F16H61/66254 , F16H61/66272
摘要： PROBLEM TO BE SOLVED: To control a pulley thrust for a proper value.
SOLUTION: From a drive pulley thrust in a drive pulley thrust calculating means 44 and a driven pulley thrust in a driven pulley thrust calculating means 48, a thrust ratio is derived using a thrust ratio calculating means 50. A thrust ratio variation state identifying means 52 detects the peak of the thrust ratio variation with respect to the driven pulley thrust variation from the thrust ratio and the driven pulley thrust. The driven pulley thrust is then kept at the peak of the thrust ratio.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：控制滑轮推力达到适当的值。解决方案：从驱动滑轮推力计算装置44中的驱动滑轮推力和从动皮带轮推力计算装置48中的从动皮带轮推力，使用推力比计算装置50推导推力比。推力比变化状态识别装置52 从推力比和从动皮带轮推力检测相对于从动皮带轮推力变化的推力比变化的峰值。然后从动皮带轮推力保持在推力比的峰值。

9. 发明专利

JP2007224992A Control device for belt type continuously variable transmission 审中-公开
标题翻译：用于带式连续可变传动的控制装置
公开(公告)号：JP2007224992A
公开(公告)日：2007-09-06
申请号：JP2006045649
申请日：2006-02-22
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , IWATSUKI KUNIHIRO
IPC分类号： F16H9/18
摘要： PROBLEM TO BE SOLVED: To provide a control device for a belt type continuously variable transmission, capable of stably preventing the slippage of a belt.
SOLUTION: A primary clamping pressure lower limit value computing circuit 59 sets a primary clamping pressure lower limit value Pdp for preventing the slippage of the belt due to a lack of primary pressure Pp in accordance with a maximum friction coefficient μp between a primary pulley and an endless belt. A secondary clamping pressure lower limit value computing circuit 60 sets a secondary clamping pressure lower limit value Pds for preventing the slippage of the belt due to a lack of secondary pressure Ps in accordance with a maximum friction coefficient μp between a secondary pulley and the endless belt. Then, the primary pressure Pp and the secondary pressure Ps are controlled to be not smaller than the primary clamping pressure lower limit value Pdp and the secondary clamping pressure lower limit value Pds, respectively.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够稳定地防止带的滑动的带式无级变速器的控制装置。解决方案：初级夹紧压力下限值计算电路59设定初级夹紧压力下限值Pdp，以防止由于初级压力Pp的缺乏导致的皮带的滑动，这是由于主压力下限值滑轮和环形皮带。次级夹紧压力下限值计算电路60设定二次夹紧压力下限值Pds，以防止由于次级带轮和环形带之间的最大摩擦系数μp而导致的由于缺乏二次压力Ps而引起的带的滑动。然后，一次压力Pp和次级压力Ps分别被控制为不小于初级夹紧压力下限值Pdp和二次夹紧压力下限值Pds。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2005090532A Belt slipping predicting device 有权
标题翻译：皮带拖车预测装置
公开(公告)号：JP2005090532A
公开(公告)日：2005-04-07
申请号：JP2003320835
申请日：2003-09-12
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YAMAGUCHI HIROYUKI , NISHIZAWA HIROYUKI , SUZUKI HIDEYUKI , OSAWA MASATAKA , IWATSUKI KUNIHIRO , OSHIUMI TAKAHIRO
IPC分类号： F16H9/00 , F16H61/02 , F16H61/662
摘要： PROBLEM TO BE SOLVED: To predict belt slipping with high precision under consideration of actual belt friction characteristics of CVT.
SOLUTION: A μ gradient determining circuit 30 simultaneously determines a primary belt μ gradient k1, and secondary belt μ gradient k2 based on primary rotation speed ω1, secondary rotation speed ω2, belt winding diameter R1 and R2, primary rotation angular acceleration, secondary rotation angular acceleration, primary belt holding pressure F1, and secondary belt holding pressure F2. A belt slipping predicting circuit 31 compares the absolute value of the belt μ gradient k1 and the absolute value of the belt μ gradient k2 respectively with a threshold generated by a threshold value generating circuit 28, and predicts belt slipping when either of the absolute values of the belt μ gradient becomes a threshold value or less.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：考虑到CVT的实际皮带摩擦特性，以高精度预测皮带打滑。解决方案：μ梯度确定电路30同时确定主带μ梯度k1，并且基于初级转速ω1，次级转速ω2，带卷绕直径R1和R2的次级带μ梯度k2，初级旋转角加速度，二次旋转角加速度，一次皮带保持压力F1和二次皮带保持压力F2。皮带滑动预测电路31将带μ梯度k1的绝对值和带μ梯度k2的绝对值分别与由阈值生成电路28生成的阈值进行比较，并且当绝对值为带μ梯度变为阈值以下。版权所有（C）2005，JPO＆NCIPI

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