公开(公告)号：US10533639B2

公开(公告)日：2020-01-14

申请号：US15576719

申请日：2016-04-22

Applicant: Jing-Jin Electric Technologies Co., Ltd.

Inventor： Ping Yu ,  Ting Wang

IPC: F16H3/24 ,  F16H3/12 ,  F16H3/32 ,  F16H57/023 ,  F16H61/28 ,  F16H63/32

Abstract: An automatic transmission comprises a double-contrate-tooth combined fluted disc (120) and a two stage transmission ordinary gear train. The gear shifting mechanism of the transmission is the double-contrate-tooth combined fluted disc (120), which has double contrate teeth, namely, left contrate teeth and right contrate teeth. By the axial moving of the double-contrate-tooth combined fluted disc (120) on the transmission output shaft, its left contrate teeth and right contrate teeth respectively engage with the contrate teeth of the first gear and the second gear reduction gears, to realize the second shift position and the first shift position, and when it engages with neither of them, the transmission is in the neutral shift position. The left contrate teeth and the right contrate teeth are individually independent or integrally assembled structures. Compared with the traditional AMT, the transmission does not need a synchronizer; therefore, the structure is simple, the reliability is increased, the gear shift duration is shortened, the shifting shock is relatively small, the manufacturing cost is low, and it is easy to realize industrialization. The transmission has simple arrangement of gears, short axial dimension, small weight, and occupies small room, and meets the development trend of light weighting and fuel saving.

公开(公告)号：US20190322166A1

公开(公告)日：2019-10-24

申请号：US16349723

申请日：2017-01-20

Applicant: Jing-Jin Electric Technologies Co., Ltd.

Inventor： Ping Yu ,  Zifu Wang

IPC: B60K7/00 ,  B60K1/02 ,  B60K17/04

Abstract: The disclosure discloses a coaxial propulsion system with multiple electric motors, comprising a housing, two or more electric motors being provided in the housing, wherein the electric motors share one common shaft. Electric motor is a permanent-magnet synchronous motor, an asynchronous motor or a switched reluctance motor, and of different efficiency maps. The disclosure can improve the power density and system efficiency of propulsion system while maintaining high performance output, to enhance the integration level, and reduce size, weight and cost.