An electric assist drive system for a bicycle, comprising a pedal crankshaft (7) operated by a rider, an epicyclic gear mechanism (30) arranged to determine a transmission ratio between the pedal crankshaft and an output shaft (25) for transmitting rotation to a rear wheel of the bicycle, an assist motor (M2) and a control motor (M1). The epicyclic gear comprises a ring gear (13), a sun gear (10) fixed for rotation with the output shaft (25), a planet gear (9) between the sun gear (10) and the ring gear (13), and a planet carrier (6) fixed for rotation with the pedal crankshaft (7) and supporting the planet gear (9). The booster motor (M2) has a rotor (4) drivingly connected to the sun gear (10) to drive the output shaft (25). A control motor (M1) is drivingly connected to the ring gear (13) to control the transmission ratio between the output shaft (25) and the pedal crankshaft (7).
一种用于自行车的电动辅助驱动系统,包括踏板曲轴(7)、周转齿轮机构(30)、助力马达(M2)以及控制马达(M1),踏板曲轴(7)由骑者操作,周转齿轮机构(30)布置为确定踏板曲轴与输出轴(25)之间的传动比,输出轴(25)用于将旋转传递到自行车的后轮。周转齿轮包括环形齿轮(13)、太阳齿轮(10)、行星齿轮(9)、以及行星架(6),太阳齿轮(10)被固定以与输出轴(25)一起旋转,行星齿轮(9)在太阳齿轮(10)与环形齿轮(13)之间,行星架(6)固定以与踏板曲轴(7)一起旋转并支撑行星齿轮(9)。助力马达(M2)具有转子(4),其受驱动地连接到太阳齿轮(10)以驱动输出轴(25)。控制马达(M1)驱动地连接到环形齿轮(13),以控制输出轴(25)与踏板曲轴(7)之间的传动比。
Power distribution hybrid powertrain for electric bicycle
用于电动自行车的动力分配混合动力传动系统
07.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |