公开(公告)号：US3898893A

公开(公告)日：1975-08-12

申请号：US40855973

申请日：1973-10-23

Applicant: AGENCY IND SCIENCE TECHN

Inventor： HASHIMOTO MASANAO ,  OHNUMA KIYOSHI

IPC: B60L15/20 ,  B60K20/00 ,  B60W10/08 ,  F16H59/68 ,  F16H61/04 ,  F16H61/06 ,  F16H61/08 ,  F16H63/50 ,  H02P7/282 ,  B60K41/08

CPC classification number: F16H63/502 ,  B60W10/08 ,  B60W10/115 ,  B60W30/19 ,  B60W2540/16 ,  B60W2710/021 ,  B60W2710/0644 ,  F16H61/0403 ,  F16H61/0437 ,  F16H61/061 ,  F16H2059/6807 ,  H02P7/2825 ,  Y02T10/7258 ,  Y10T74/19284 ,  Y10T477/33 ,  Y10T477/677 ,  Y10T477/679

Abstract: The automatic transmission for electric automobiles comprises an input shaft extending from a vehicle driving motor and an output shaft connected to the input shaft via planetary gearing provided with a clutch assembly for effecting gear changes. The speed change controlling device adapted in the transmission comprises a hydraulic circuit having a change-over valve designed to switch the oil passage by connection or disconnection of power to a solenoid valve to supply pressurized, operating oil to the clutch, an electric control circuit including a transistor for changing the field current of the vehicle driving motor, a comparison circuit for comparing the field current with a reference voltage, and the rotational frequency of the motor with that of the output shaft which may or may not be multiplied by the gear ratio, an oil pressure detector device for detecting oil pressure in the clutch, a circuit for generating a pulse for changing the normal condition of the transistor, and a logic element connected between the pulse generating circuit and the solenoid valve, whereby smooth speed changing operation is effected.

Abstract translation: 用于电动汽车的自动变速器包括从车辆驱动电动机延伸的输入轴和通过设置有用于实现变速的离合器组件的行星齿轮连接到输入轴的输出轴。 适用于变速器的变速控制装置包括具有转换阀的液压回路，其设计成通过连接或断开与电磁阀的动力来切换油路，以将加压的工作油提供给离合器;电控制回路，包括 用于改变车辆驱动电动机的励磁电流的晶体管，用于比较场电流与参考电压的比较电路，以及电动机与输出轴的转速的频率，该转速可以乘以齿轮比 用于检测离合器中的油压的油压检测装置，用于产生用于改变晶体管的正常状态的脉冲的电路和连接在脉冲发生电路和电磁阀之间的逻辑元件，由此平滑的变速操作是 影响。