公开(公告)号：US20180372218A1

公开(公告)日：2018-12-27

申请号：US15815052

申请日：2017-11-16

申请人： Hyundai Motor Company ,  KIA Motors Corporation

发明人： Chan Hee WON ,  Hyung Hee LEE ,  Woo Il CHANG ,  Jun Sung PARK ,  Ho Young KIM

IPC分类号： F16H61/66 ,  F16H9/16 ,  F16H61/462 ,  F16H61/427

CPC分类号： F16H61/66 ,  F16H9/16 ,  F16H59/0204 ,  F16H59/06 ,  F16H61/427 ,  F16H61/462 ,  F16H61/662 ,  F16H61/66236 ,  F16H2059/366 ,  F16H2059/425 ,  F16H2061/6603 ,  F16H2061/6615 ,  F16H2061/6616 ,  F16H2061/6617

摘要： A method for controlling a gear ratio of a continuously variable transmission vehicle includes: a step of detecting a position of a shift lever by a controller; a step of checking, by the controller, a gear ratio variation based on a difference between a desired stage gear ratio and a current gear ratio in a continuously variable transmission when the shift lever is detected to be positioned in a manual range; a step of calculating, by the controller, a gear ratio correction value based on a rate of change of engine RPM when the gear ratio variation is checked as being other than zero after the step of checking the gear ratio variation; and a step of correcting, by the controller, the gear ratio variation in response to the calculated gear ratio correction value after the calculation step.

公开(公告)号：US20180273038A1

公开(公告)日：2018-09-27

申请号：US15796347

申请日：2017-10-27

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： Woo Il CHANG ,  Joon Bae KIM ,  Chan Hee WON

IPC分类号： B60W30/188 ,  B60W10/06 ,  B60W10/107 ,  B60W50/00

CPC分类号： B60W30/1882 ,  B60W10/06 ,  B60W10/107 ,  B60W50/00 ,  B60W2050/0026 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2710/0644 ,  B60W2710/0666 ,  B60W2710/1005 ,  F16H61/0213 ,  F16H2061/0012 ,  F16H2063/504

摘要： Disclosed is an integrated control method for an engine and a transmission, which is capable of integrally controlling the engine and the transmission, based on a control correlation between the engine and the transmission. This method determines a target engine operating point reflecting a driving state of a vehicle and a driver's intention to accelerate, in an integrated control map having an engine control area and a transmission control area. The method calculates a target shift ratio based on the target engine operating point, thus being capable of significantly saving a man-hour required to set a map as compared to a conventional control method in which an engine torque map and a shift pattern map are individually set, and improving fuel efficiency.