JPS59188730U

JPS59188730U - 4 wheel drive vehicle

Info

Publication number: JPS59188730U
Application number: JP8487683U
Authority: JP
Inventors: 邦彦鈴木
Original assignee: 日産自動車株式会社
Priority date: 1983-06-03
Filing date: 1983-06-03
Publication date: 1984-12-14

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図は操向車輪の操舵角が大きい場合の路面における
前車輪と後車輪とのそれぞれの回転半径の差異を示す車
両の平面図、第２図はこの考案に係る４輪駆動車の第１
実施例を示す骨組図、第３図は前後輪差動制御手段を示
す部分断面概略図、第４ａ図は第２図に示す第１実施例
の信号系統を示すブロック図、第４ｂ図はこの制御フロ
ーチャートを示す図、第５図は第２実施例に係る４輪駆
動車の骨組図、第６図は第５図に示す第２実施例の信号
系統を示すブロック図、第７図は第３実施例に係る４輪
駆動車の骨組図、第８図は第７図に示す第３実施例の信
号系統を示すブロック図である。１・・・車体、６・・・電流調整手段（操作手段）、７
・・・前後輪差動機構、７ａ・・・ディファレンシャル
ケース、７ｂ・・・ピニオンシャフト、７ｃ・・・ディ
ファレンシャルピニオン、７ｄ・・・サイドギヤ、１２
ａ。１２ｂ・・・前車輪回転数検出手段、（第１回転数検出
手段）、１４ａ・・・後ディファレンシャルケース回転
数検出手段（第２回転数検出手段）、１６ａ。１６ｂ・・・後車輪、１７ａ、１７ｂ・・・後車輪回軸
数検出手段（第２回転数検出手段）、２２ａ・・・前デ
ィファレンシャルケース回転数検出手段（第１回転数検
出手段）、２３・・・ソレノイド、２５ａ。２５ｂ・・・前車輪、２６・・・前後輪差動制御手段、
２７・・・前後輪差動制御バルブ、２９・・・油圧多板
クラッチ、３１・・・前後輪差動制御検出手段、３２・
・・表示手段、３３・・・制御手段、３４・・・前サイ
ドギヤ回転数検出手段（第１回転数検出手段）、３５・
・・後サイドギヤ回転数検出手段（第２回転数検出手段
）。Fig. 1 is a plan view of a vehicle showing the difference in the turning radius of the front wheels and rear wheels on a road surface when the steering angle of the steering wheel is large, and Fig. 2 is a plan view of a four-wheel drive vehicle according to this invention. 1
3 is a partial cross-sectional schematic diagram showing the front and rear wheel differential control means, FIG. 4a is a block diagram showing the signal system of the first embodiment shown in FIG. 2, and FIG. 4b is a schematic diagram showing the signal system of the first embodiment shown in FIG. A diagram showing a control flowchart, FIG. 5 is a frame diagram of a four-wheel drive vehicle according to a second embodiment, FIG. 6 is a block diagram showing a signal system of the second embodiment shown in FIG. 5, and FIG. FIG. 8 is a block diagram showing the signal system of the third embodiment shown in FIG. 7. DESCRIPTION OF SYMBOLS 1...Vehicle body, 6...Current adjustment means (operation means), 7
... Front and rear wheel differential mechanism, 7a ... Differential case, 7b ... Pinion shaft, 7c ... Differential pinion, 7d ... Side gear, 12
a. 12b... Front wheel rotation speed detection means (first rotation speed detection means), 14a... Rear differential case rotation speed detection means (second rotation speed detection means), 16a. 16b... Rear wheel, 17a, 17b... Rear wheel rotation speed detection means (second rotation speed detection means), 22a... Front differential case rotation speed detection means (first rotation speed detection means), 23 ...Solenoid, 25a. 25b...front wheel, 26...front and rear wheel differential control means,
27... Front and rear wheel differential control valve, 29... Hydraulic multi-plate clutch, 31... Front and rear wheel differential control detection means, 32.
... Display means, 33... Control means, 34... Front side gear rotation speed detection means (first rotation speed detection means), 35.
...Rear side gear rotation speed detection means (second rotation speed detection means).

Claims

[Scope of utility model registration request]

A front and rear wheel differential mechanism that is connected to the front wheels and the rear wheels and absorbs the difference in rotational speed between the front wheels and the rear wheels, and a front and rear wheel differential control means that can limit or prevent the differential function of the front and rear wheel differential mechanisms. and an operation means for selectively operating the front and rear wheel differential control means in the differential function activation direction and the differential function inhibition direction.
In a wheel drive vehicle, a first rotation speed detection means for detecting the rotation speed of the front wheel side of the front and rear wheel differential mechanism, and a second rotation speed detection means for detecting the rotation speed of the front and rear wheel differential mechanism and the rear wheel side. and,
Front and rear wheel differential control detection means for detecting whether or not the front and rear wheel differential control means operates in a differential function inhibiting direction, first rotation speed detection means, second rotation speed detection means, and front and rear wheel differential control detection means. When a signal is input from the controller and the difference in rotational speed between the front wheels and the rear wheels exceeds a predetermined value and the front and rear wheel differential control means is not operating in the direction of blocking the differential function, the operating means is set to the differential mode. - A four-wheel drive vehicle characterized by comprising means for displaying to the driver an instruction to operate in the direction of inhibiting the function.