JPS62152080U

JPS62152080U -

Info

Publication number: JPS62152080U
Application number: JP4100986U
Authority: JP
Priority date: 1986-03-19
Filing date: 1986-03-19
Publication date: 1987-09-26

Description

[Brief explanation of the drawing]

第１図はこの考案の機関用クランク角度検出装
置の一実施例を示す回路図、第２図は同上機関用
クランク角度検出装置の動作波形図、第３図およ
び第４図はそれぞれこの考案の機関用クランク角
度検出装置の他の実施例の回路図、第５図は従来
の機関用クランク角度検出装置のブロツク図、第
６図は第５図の機関用クランク角度検出装置にお
ける角度信号発生回路の回路図、第７図は第６図
の角度信号発生回路の動作波形図である。１……ロータ、１ａ……凸部、２……磁気ピツ
クアツプ、２ａ……ステータ、２ｂ……永久磁石
、２ｃ……ピツクアツプコイル、３……角度信号
発生回路、７……比較器、８……非反転増幅器、
１０，１４ａ，１４ｂ……反転増幅器、９，１１
……微分回路、１２……ＯＲゲート、１３……Ａ
ＮＤゲート。なお、図中同一符号は同一または相
当部分を示す。 Fig. 1 is a circuit diagram showing an embodiment of the engine crank angle detection device of this invention, Fig. 2 is an operation waveform diagram of the same engine crank angle detection device, and Figs. 3 and 4 are respectively of this invention. A circuit diagram of another embodiment of the engine crank angle detection device, FIG. 5 is a block diagram of a conventional engine crank angle detection device, and FIG. 6 is an angle signal generation circuit in the engine crank angle detection device of FIG. FIG. 7 is an operating waveform diagram of the angle signal generating circuit of FIG. 6. DESCRIPTION OF SYMBOLS 1... Rotor, 1a... Convex part, 2... Magnetic pick-up, 2a... Stator, 2b... Permanent magnet, 2c... Pick-up coil, 3... Angle signal generation circuit, 7... Comparator, 8... …non-inverting amplifier,
10, 14a, 14b...inverting amplifier, 9, 11
... Differential circuit, 12 ... OR gate, 13 ... A
ND gate. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

a magnetic pickup that detects a convex portion of a rotor rotating in synchronization with the engine and generates an alternating current signal; a first means that generates a first pulse signal based on an output signal of the magnetic pickup; a second means for generating a second pulse signal that is inverted with respect to the pulse signal; and a convex portion of the rotor based on each rising edge or each falling edge of the first and second pulse signals. An engine crank angle detection device comprising angle signal output means for outputting two angle signals corresponding to each of the angle signals.