Study on the measurement of dynamic characteristics for automotive electronic fuel injector
Citations
16 citations
5 citations
Cites background from "Study on the measurement of dynamic..."
...Construction of an electronic fuel injector [4]: 1 – Iron core, 2 – electromagnetic coil, 3 – armature, 4 – needle valve, 5 – yoke of magnet, 6 – electrical connection, 7 – filter...
[...]
...The interval A is injector inaction, B refers to moving the injector core, C is the injection action with the current increasing, D is injector in operation, E refers to overvoltage caused by the inductance of the injector (moving core injector to initial position), F is fading overvoltage and G is injector inaction [3, 4]....
[...]
2 citations
1 citations
Cites background from "Study on the measurement of dynamic..."
...In practice, two solutions differing in the number of ignition coils are used [2]....
[...]
1 citations
Cites methods from "Study on the measurement of dynamic..."
...Based on the analysis of heat losses using thermovision, it is also possible to confirm and thus increase the reliability of fault detection and its degree in the ignition system [5], [12]....
[...]
References
16 citations
"Study on the measurement of dynamic..." refers background in this paper
...1 , relevant inaccuracy will not exceed 5μs operational amplifier response time delay will not exceed 5μs normally system 12MHz crystal oscillator frequency, K51 single chip microcomputer delayed action T1 resolution is 1μs [5] software dealing makes it inaccuracy through software compensation to make it not beyond single chip microcomputer one machine cycle which is 1μs, therefore, possibly to make maximum inaccuracy is s tdk μ δ 12 1 1 5 5 = + + + = 14 s tdb μ δ 7 1 1 5 = + + = 15 When injector power supply voltage is 12V, result is as shown dk t =1....
[...]
...injector needle valve opening/closing finishing moment detection circuit Measurement system uses K51/S simulator as controller([5]), injector driving circuit and single chip microcomputer P1....
[...]
3 citations
"Study on the measurement of dynamic..." refers background in this paper
...But in needle valve opening and closing motion course, injector flow shows obvious nonlinear characteristics([2])....
[...]