JPH0220786U

JPH0220786U -

Info

Publication number: JPH0220786U
Application number: JP9800688U
Authority: JP
Priority date: 1988-07-26
Filing date: 1988-07-26
Publication date: 1990-02-13

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を自動車エンジンの
制御に適用した例の概略構成を示すブロツク図、
第２図は同実施例におけるバツクアツプセンサの
配置状態を示す概略斜視図、第３図は同実施例に
おいてカムと永久磁石との位置関係を示す平面図
、第４図は同実施例におけるクランク角センサ及
びバツクアツプセンサの出力信号のタイミングチ
ヤート図である。符号の説明、１……クランク軸、３……クラン
ク角センサ、６……ＣＰＵユニツト、８……角度
演算手段、９……制御手段、２０……バツクアツ
プセンサ、２１……永久磁石、２２……コイル、
２５……カム（連結作動部材）、２６……プツシ
ユロツド（連結作動部材）。 FIG. 1 is a block diagram showing a schematic configuration of an example in which an embodiment of the present invention is applied to control of an automobile engine;
Fig. 2 is a schematic perspective view showing the arrangement of the backup sensor in the same embodiment, Fig. 3 is a plan view showing the positional relationship between the cam and the permanent magnet in the same embodiment, and Fig. 4 is a crankshaft in the same embodiment. FIG. 3 is a timing chart of output signals of an angle sensor and a backup sensor. Explanation of symbols: 1...Crankshaft, 3...Crank angle sensor, 6...CPU unit, 8...Angle calculation means, 9...Control means, 20...Backup sensor, 21...Permanent magnet, 22 ……coil,
25... cam (connection operating member), 26... push rod (connection operating member).

Claims

[Scope of utility model registration request]

a crank angle sensor that detects a rotation angle based on a pulse signal generated every predetermined rotation angle of the crankshaft; 1. A rotation angle detection device for a crankshaft, comprising a back-up sensor for detecting a rotation angle of the shaft.