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1. 发明公开

EP3260742A4 CONTROL DEVICE FOR CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
公开(公告)号：EP3260742A4
公开(公告)日：2018-03-14
申请号：EP15882743
申请日：2015-12-16
申请人： JATCO LTD
发明人： SUWABE TOMOYUKI , TSUKAMOTO SHIN , ISHIKAWA YOUHEI
IPC分类号： F16H61/16 , F16H61/662
CPC分类号： F16H61/16 , F16H61/66259
摘要： Control device for continuously variable transmission (4) with auxiliary transmission having variator (20); hydraulic pressure control circuit (11) having primary pressure solenoid (11b); and transmission ratio controller (12) controlling the transmission ratio of variator (20) by feedback control. The transmission ratio controller (12) has a high limiter control unit ( Fig. 5 ) that, when receiving a high transmission ratio limiting request, performs a high limiter control that limits the transmission ratio to a High limit line. The transmission ratio controller (12) also has a primary pressure lower limit regulation control unit ( Fig. 4 ) that, when operation of the high limiter control is started during a time period when the transmission ratio is present at a High transmission ratio side with respect to the high limit transmission ratio, regulates a decrease of a primary command pressure to the primary pressure solenoid up to a High limiter-operated final target primary lower limit pressure.

2. 发明公开

EP3273111A4 CONTROL DEVICE FOR CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
公开(公告)号：EP3273111A4
公开(公告)日：2018-05-02
申请号：EP16768163
申请日：2016-02-03
申请人： JATCO LTD , NISSAN MOTOR
发明人： ABE KOSUKE , TSUKAMOTO SHIN , TAKAHASHI SEIICHIRO , TANAKA HIROYASU
IPC分类号： F16H61/662
CPC分类号： F16H61/66272 , B60W2520/28 , F16H59/40 , F16H59/42 , F16H59/66 , F16H2061/66277
摘要： A control device for a continuously variable transmission has a first rotation speed sensor detecting a rotation speed of a driving wheel; a second rotation speed sensor detecting a rotation speed of a driven wheel; a wheel speed difference detection unit configured to detect a wheel speed difference between the driving wheel and the driven wheel from a detection value of the first rotation speed sensor and a detection value of the second rotation speed sensor; a bad road judgment unit configured to, when the wheel speed difference is equal to or greater than a first predetermined value, judge that a road on which a vehicle is travelling is a bad road; a first belt clamping force increase unit configured to, in a case where the road is judged to be the bad road, increase a belt clamping force when clamping a belt of the continuously variable transmission by pressure-controlled pulleys as compared with a case where the road is not judged to be the bad road; a vibration detection unit configured to detect a vehicle speed vibration value indicating a vibration of a vehicle speed on the basis of at least one of the detection values of the first rotation speed sensor and the second rotation speed sensor; and a second belt clamping force increase unit configured to, in a case where the road is not judged to be the bad road, when the wheel speed difference is equal to or greater than a second predetermined value that is smaller than the first predetermined value, or when the vehicle speed vibration value is equal to or greater than a third predetermined value, increase the belt clamping force as compared with a case where the wheel speed difference is less than the second predetermined value and a case where the vehicle speed vibration value is less than the third predetermined value. It is therefore possible to suppress belt slip regardless of a road condition.

3. 发明公开

EP3196513A4 CONTROLLER FOR CONTINUOUSLY VARIABLE TRANSMISSION 审中-公开
标题翻译： STEUERGERÄTFÜREIN STUFENLOSES GETRIEBE
公开(公告)号：EP3196513A4
公开(公告)日：2017-08-16
申请号：EP15828259
申请日：2015-06-24
申请人： JATCO LTD , NISSAN MOTOR
发明人： ABE KOSUKE , SUWABE TOMOYUKI , TSUKAMOTO SHIN
IPC分类号： F16H61/662 , F16H59/40 , F16H61/12
CPC分类号： F16H61/66272 , F16H59/40 , F16H59/42 , F16H59/46 , F16H59/48 , F16H61/12 , F16H2059/405 , F16H2061/1284 , F16H2061/66277
摘要： A control for a continuously variable transmission includes a wheel speed sensor (21F) arranged to sense a rotation speed of a driving wheel, a wheel speed sensor arranged to a rotation speed of a driven wheel, and a transmission controller (12). The transmission controller (12) is configured to judge a traveling road is a rough road (S1) when a wheel speed difference between the driving wheel and the driven wheel is equal to or greater than an entering judgment threshold value, and to increase a clamping force of the continuously variable transmission (1). The transmission controller (12) is configured to sense a vibration of a vehicle speed based on the detection value of the wheel speed sensor (21R), and to decrease the increased clamping force when the wheel speed difference is equal to or smaller than a release judgment threshold value (S3), and when the sensed vibration is equal to or smaller than a predetermined vibration value (S5).
摘要翻译：无级变速器的控制装置具有检测驱动轮的转速的车轮速度传感器（21F），配置于从动轮的转速的车轮速度传感器以及变速器控制器（12）。变速器控制器（12）被配置为当驱动轮和从动轮之间的车轮速度差等于或大于进入判断阈值时，判断行驶道路是不平整道路（S1），并且增加夹紧无级变速器（1）的力。变速器控制器（12）被配置为基于车轮速度传感器（21R）的检测值来感测车辆速度的振动，并且当车轮速度差等于或小于释放量时，减小增加的夹紧力判断阈值（S3），并且当感测到的振动等于或小于预定振动值时（S5）。

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