Single planet-row two-shift automatic transmission for electric automobile
专利类型：发明专利
语 言：中文
申 请 号：CN201510369265.3
申 请 日：20150630
申 请 人：重庆大学
申请人地址：400044 重庆市沙坪坝区沙坪坝正街174号
公 开 日：20170818
公 开 号：CN104930140B
代 理 人：赵荣之
代理机构：北京同恒源知识产权代理有限公司 11275
摘 要：Abstract：The invention discloses a single planet-row two-shift automatic transmission for an electric automobile. The automatic transmission comprises a casing. The casing is internally provided with a driving gear connected to a driving motor, a driven gear engaged with the driving gear, and an intermediate shaft fixedly connected to the driven gear. The intermediate shaft is provided with a planetary gear mechanism. The planetary gear mechanism comprises a sun gear fixedly connected to the intermediate shaft, a planetary gear engaged with the sun gear, a planetary gear holder, and a gear ring engaged with the planetary gear. The planetary gear holder is provided with an output shaft, and a clutch is arranged between the output shaft and the sun gear or the intermediate shaft. The casing is also provided with a brake used for braking the tooth ring. According to the invention, the electromagnetic brake and the electromagnetic clutch are employed in the single planet-row two-shift automatic transmission, so that demands on the performance of the driving motor are reduced, the operation efficiency of the motor is improved, and the driving range of the electric automobile is increased.
主 权 项：一种电动汽车用单行星排两挡自动变速器，包括箱体，其特征在于：所述箱体内设置有与驱动电机相连的主动齿轮、与主动齿轮啮合的从动齿轮以及与从动齿轮固连的中间轴，所述中间轴上还设置有行星齿轮机构，所述行星齿轮机构包括固连在中间轴上的太阳轮、与太阳轮啮合的行星轮，行星轮保持架以及与行星轮啮合的齿圈，所述行星轮保持架上设置有输出轴，所述输出轴与太阳轮或中间轴之间设置有离合器，所述箱体上还设置有用于制动齿圈的制动器。
关 键 词：
法律状态：生效
IPC专利分类号：F16H3/44; F16H57/023