DOUBLE DISCONNECT TRANSMISSION REVERSER WITH DISCONNECT SYNCHRONIZER

    公开(公告)号:US20170241545A1

    公开(公告)日:2017-08-24

    申请号:US15496474

    申请日:2017-04-25

    申请人: Deere & Company

    IPC分类号: F16H63/30 F16H61/04

    CPC分类号: F16H61/0403 F16H3/14

    摘要: A transmission reverser for reversing a direction of an output gear carried by an output shaft includes a reverse shaft, a reverse clutch mounted about the reverse shaft and having engaged and disengaged conditions, and a reverse disconnect synchronizer mounted about the reverse shaft and having engaged and disengaged conditions. When the reverse clutch and the reverse disconnect synchronizer are in the engaged conditions, the reverse shaft rotates the output gear in a reverse direction of rotation opposite a direction of rotation of the output shaft. When the reverse disconnect synchronizer is in the disengaged condition, the reverse clutch is disconnected from the output gear.

    METHOD OF CONTROLLING TRANSMISSION OF ELECTRIC VEHICLE

    公开(公告)号:US20170152939A1

    公开(公告)日:2017-06-01

    申请号:US15088261

    申请日:2016-04-01

    发明人: Jong Yun PARK

    IPC分类号: F16H61/04 F16H63/24

    摘要: A method of controlling a transmission of an electric vehicle of the present disclosure includes: applying a driving force to an actuator of a synchronizer by means of a controller such that the synchronizer is disengaged from a current gear stage, when a power-on shifting instruction to shift from the current gear stage to a desired gear stage is given; engaging a servo-clutch by means of the controller such that torque is transmitted from an input shaft to an output shaft through a servo-gear unit, after the applying of a driving force; and disengaging the synchronizer from the current gear stage using a driving force of the actuator, when torque of the current gear stage is switched to the servo-gear unit, after the engaging of the servo-clutch.