JPS6163058U

JPS6163058U -

Info

Publication number: JPS6163058U
Application number: JP14876984U
Authority: JP
Priority date: 1984-10-01
Filing date: 1984-10-01
Publication date: 1986-04-28

Description

[Brief explanation of drawings]

第１図は本考案に係る変速機を備えた電気自動
車用動力伝達装置の一例を示す断面図、第２図は
同変速機における油圧制御装置の概略構成図、第
３図は電動モータの回転数とアクセルペダルの踏
込み量との関係を示すグラフ、第４図はソレノイ
ドバルブの通電を制御する電気制御回路図である
。符号の説明、１０…電動モータ、１２…回転軸
、１６…インプツトシヤフト、２２…オイルポン
プ、２４…アウトプツトシヤフト、２６…サンギ
ヤ、２８…キヤリア、３０…リングギヤ、３２…
プラネタリギヤ、Ｃ…プラネタリギヤユニツト、
３４…コーンクラツチ、３６…ワンウエイクラツ
チ、４０…ピストン、４２…スプリング、４４…
アウタレース、５０…レギユレータバルブ、５１
…シフトバルブ、５４…第１ソレノイドバルブ、
６０…パイロツトバルブ、６２…第２ソレノイド
バルブ、７０…回転体、７１…回転センサ、７２
…Ｆ−Ｖコンバータ、７３…変速可能回転数設定
器、７４…コンパレータ、７５…関数発生器、７
６…アクセルポジシヨンセンサ、７７…コンパレ
ータ、７８…アンド回路、７９…増幅器、８０〜
８３…トランジスタ。 Fig. 1 is a sectional view showing an example of a power transmission device for an electric vehicle equipped with a transmission according to the present invention, Fig. 2 is a schematic configuration diagram of a hydraulic control device in the transmission, and Fig. 3 is a rotation of an electric motor. FIG. 4 is a graph showing the relationship between the number of accelerator pedals and the amount of depression of the accelerator pedal, and FIG. 4 is an electrical control circuit diagram for controlling the energization of the solenoid valve. Explanation of symbols, 10...Electric motor, 12...Rotating shaft, 16...Input shaft, 22...Oil pump, 24...Output shaft, 26...Sun gear, 28...Carrier, 30...Ring gear, 32...
Planetary gear, C...planetary gear unit,
34... Cone clutch, 36... One-way clutch, 40... Piston, 42... Spring, 44...
Outer race, 50...Regulator valve, 51
...Shift valve, 54...First solenoid valve,
60...Pilot valve, 62...Second solenoid valve, 70...Rotating body, 71...Rotation sensor, 72
...F-V converter, 73... Variable speed setting device, 74... Comparator, 75... Function generator, 7
6...Accelerator position sensor, 77...Comparator, 78...AND circuit, 79...Amplifier, 80~
83...Transistor.

Claims

[Scope of utility model registration request]

An input shaft connected to the rotating shaft of the electric motor so as to be able to transmit power, an output shaft connected coaxially and relatively rotatably to the input shaft, a ring gear integrally provided with the output shaft, and the input shaft. a planetary gear unit comprising a sun gear rotatably provided on the input shaft and a carrier rotatably supporting a planetary gear that is integrally provided with the input shaft and meshes with the ring gear and the sun gear;
The planetary gear unit is spline-coupled to the sun gear so as to be movable in the axial direction, and selectively moved to a low position where it engages with the fixed member and a high position where it engages with the ring gear, thereby selecting the planetary gear unit to the low gear side and the high gear side, respectively. a cone clutch that is assembled to said sun gear and acts on said sun gear when said cone clutch is engaged with a fixed member and while said cone clutch is moving to engage said ring gear; A one-way clutch receives the force, and a hydraulic control device automatically switches the position of the cone clutch to a low position or a high position depending on the vehicle speed and accelerator position of the vehicle, and the cone clutch is spring-biased to fix the cone clutch. the cone clutch is configured to move against the spring and engage the ring gear due to a line pressure equal to or higher than a set value applied from the hydraulic control device, and the cone clutch is configured to engage the ring gear. A pilot valve is installed in the hydraulic conduit between the regulator valve and the shift valve that constitutes the system, which applies the line pressure as pilot pressure to the regulator valve, and which also connects the pilot pressure on and off according to the vehicle speed and the accelerator position. An automatic transmission for an electric vehicle, wherein the line pressure obtained by operating the regulator valve is increased to a set value or higher when the vehicle speed and the accelerator position reach a predetermined relationship.