JPS63200736U

JPS63200736U -

Info

Publication number: JPS63200736U
Application number: JP9170887U
Authority: JP
Priority date: 1987-06-15
Filing date: 1987-06-15
Publication date: 1988-12-23

Description

[Brief explanation of drawings]

第１図はこの考案の第１実施例を示す概略構成
図、第２図は第１図のトルク検出面及びセンサ部
の一部切除した拡大図、第３図は第１図の測定部
の構成を示すブロツク図、第４図は第１実施例に
おける回転軸方向の磁束の経路を示す説明図、第
５図は第１実施例における第１、第２のトルク検
出面の変形作用を示すため、第１、第２のトルク
検出面をそれぞれ平板状に展開したときの説明図
、第６図は第１実施例におけるトルク対出力電圧
の関係を示すグラフ、第７図はこの考案に適用し
得る車両におけるトランスフアーの装着位置を示
すためのスケルトン図、第８図はこの考案の第２
実施例を示す概略構成図、第９図はこの考案の第
３実施例を示す概略構成図である。図中、２ａ，２ｂは前輪、４ａ，４ｂは後輪、
１１はセンターデフ（差動装置）、１４はトラン
スフアー、１５Ａはトルク伝達部してのフランジ
、２４はトルク伝達部としての入力シヤフト、２
６はトルク伝達部としての出力シヤフト、５０は
車両用トルク検出装置、５０Ａ，５０Ｂは第１、
第２のトルク検出面（トルク検出面）、５０Ｃは
センサ部、５０Ｄは測定部、５１Ａ，５１Ｂは第
１、第２のグルーブ列（グルーブ列）、５４Ａ，
５４Ｂは第１、第２のコイル（コイル）、ａ，ａ
，ｂ，ｂはグルーブである。 Fig. 1 is a schematic configuration diagram showing the first embodiment of this invention, Fig. 2 is an enlarged partially cutaway view of the torque detection surface and sensor section of Fig. 1, and Fig. 3 is an enlarged view of the measuring section of Fig. 1. A block diagram showing the configuration, FIG. 4 is an explanatory diagram showing the path of magnetic flux in the direction of the rotating shaft in the first embodiment, and FIG. 5 shows the deformation effect of the first and second torque detection surfaces in the first embodiment. Therefore, FIG. 6 is a graph showing the relationship between torque and output voltage in the first embodiment, and FIG. 7 is an explanatory diagram when the first and second torque detection surfaces are each developed into a flat plate shape. Figure 8 is a skeleton diagram showing the mounting position of the transfer in a possible vehicle.
FIG. 9 is a schematic diagram showing a third embodiment of this invention. In the figure, 2a and 2b are front wheels, 4a and 4b are rear wheels,
11 is a center differential (differential device), 14 is a transfer, 15A is a flange as a torque transmission section, 24 is an input shaft as a torque transmission section, 2
6 is an output shaft as a torque transmission unit, 50 is a vehicle torque detection device, 50A, 50B are first,
2nd torque detection surface (torque detection surface), 50C is a sensor section, 50D is a measurement section, 51A, 51B are first and second groove rows (groove rows), 54A,
54B are first and second coils (coils), a, a
, b, b are grooves.

Claims

[Claims for Utility Model Registration] A transfer device having a torque transmission section for increasing the rotational speed of input driving force divided by a differential device and transmitting this driving force to the front wheel side or the rear wheel side. In contrast, in a vehicle torque detection device that detects the torque of the torque transmission part using a magnetostrictive effect, the torque transmission part has a cylindrical surface centered on the rotation axis of the torque transmission part or a surface perpendicular to the rotation axis. A circumferential torque detection surface having shape magnetic anisotropy is provided on the cylindrical surface or the side surface, and a magnetic circuit is formed between the torque detection surface and the torque detection surface at a position close to and opposite to the torque detection surface. 1. A torque detection device for a vehicle, characterized in that a sensor portion having a coil capable of forming a coil is fixedly disposed.