JPS59156828U

JPS59156828U - Vehicle four-wheel drive system

Info

Publication number: JPS59156828U
Application number: JP5087283U
Authority: JP
Inventors: 伊藤　英夫
Original assignee: 日産自動車株式会社
Priority date: 1983-04-07
Filing date: 1983-04-07
Publication date: 1984-10-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は通常の４輪駆動装置を示す略図的平面図、第２
図は本考案４輪駆動装置の一実施例を示す第１図と同様
の略図的平面図、第３図は同装置の変形例を示すシステ
ム図、第４図は本考案装置の他の例を示す第１図と同様
の略図的平面図、第５図は４輪駆動車の加速時における
挙動説明図である。１・・・エンジン、２・・・変速機、３・・・プロペラ
シャフト、４・・・伝動歯車組、５・・・中央差動歯車
装置、６．６′・・・前輪、７．７′・・・後輪、８，
９・・・動力分配軸、１０・・・前輪用差動歯車装置、
１１・・・後輪用差動歯車装置、１９．１９’、２０．
２０’・・・ドッグクラッチ、２１．２１’・・・シフ
トフォーク、２２・・・ガイドロッド、２５．２５’・
・・ばね、２６・・・アクチュエータ、２７・・・デフ
ロック装置（動力分配軸直結手段）、２８・・・加速検
知回路（加速検知回路）、２９・・・アクセルペダル、
３６・ｉ・アクセルスイッチ（加速検知手段）、３９・
・・ブレーキスイッチ（制動検知手段）、４０・・・ブ
レーキペダル、４１．４１’・・・液圧シリンダ（制動
検知手段）、４２・・・ばね、４３・・・ブレーキマス
クシリンダ、４４・・・ブレーキ配管、４５・・・連絡
管。Fig. 1 is a schematic plan view showing a normal four-wheel drive device;
The figure is a schematic plan view similar to FIG. 1 showing an embodiment of the four-wheel drive device of the present invention, FIG. 3 is a system diagram showing a modified example of the device, and FIG. 4 is another example of the device of the present invention. FIG. 5 is a diagram illustrating the behavior of a four-wheel drive vehicle during acceleration. DESCRIPTION OF SYMBOLS 1... Engine, 2... Transmission, 3... Propeller shaft, 4... Transmission gear set, 5... Central differential gear device, 6.6'... Front wheel, 7.7 '...Rear wheel, 8,
9... Power distribution shaft, 10... Front wheel differential gear device,
11... Rear wheel differential gear device, 19.19', 20.
20'...Dog clutch, 21.21'...Shift fork, 22...Guide rod, 25.25'.
... Spring, 26 ... Actuator, 27 ... Differential lock device (power distribution shaft direct connection means), 28 ... Acceleration detection circuit (acceleration detection circuit), 29 ... Accelerator pedal,
36・i・accelerator switch (acceleration detection means), 39・
...Brake switch (braking detection means), 40...Brake pedal, 41.41'...Hydraulic cylinder (braking detection means), 42...Spring, 43...Brake mask cylinder, 44...・Brake piping, 45...Connection pipe.

Claims

[Scope of Claim for Utility Model Registration] 1. Changes in acceleration and braking of the vehicle in a four-wheel drive vehicle that can run by distributing engine output to the front two wheels and the rear two wheels as appropriate or constantly through respective power distribution shafts. A four-wheel drive system for a vehicle, comprising: means for detecting a change in acceleration or braking of the vehicle by a signal from the means, and means for directly connecting the two power distribution shafts to each other when the acceleration or braking of the vehicle changes by a predetermined amount or more. 2 The means for detecting changes in vehicle acceleration and motion
2. The four-wheel drive system for a vehicle according to claim 1, wherein the four-wheel drive system detects the speed of change in wheel motion.