CN203640905U - Induction circuit of ignition coil iron core of automobile - Google Patents
Induction circuit of ignition coil iron core of automobile Download PDFInfo
- Publication number
- CN203640905U CN203640905U CN201320826981.6U CN201320826981U CN203640905U CN 203640905 U CN203640905 U CN 203640905U CN 201320826981 U CN201320826981 U CN 201320826981U CN 203640905 U CN203640905 U CN 203640905U
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- transistor
- iron core
- ignition coil
- circuit
- resistor
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Abstract
The utility model relates to an induction circuit of an ignition coil iron core of an automobile. According to circuit connection, one end of an input resistor R1 is connected with the ignition coil iron core, the other end of the input resistor R1 is connected with one end of a stabilivolt D1 and one end of a current limiting resistor R2, the other end of the stabilivolt D1 is connected with a power supply, the other end of the current limiting resistor R2 is connected with the B electrode of a transistor Q1 and one end of a filter capacitor C1, the other end of the filter capacitor C1 is connected with the power supply, the E electrode of the transistor Q1 is connected with the power supply and one end of a protective resistor R3, the C electrode of the transistor Q1 is connected with the other end of the protective resistor R3 and one end of an output resistor R4, and the other end of the output resistor R4 is connected with an ECU of an engine. The induction circuit of the ignition coil iron core of the automobile has the advantages that the functions of a foreign chip-level circuit are achieved through some simple common circuits, the technical barriers of foreign manufacturers are effectively avoided, and production cost is greatly lowered.
Description
Technical field
The utility model relates to a kind of automobile ignition coil, particularly a kind of automobile ignition coil core sensor circuit.
Background technique
Iron core sensor circuit works the ignition coil iron core induced voltage effect that detects in ignition system, and this induced voltage depends on whether reliable ignition of spark coil spark plug.At present iron core sensor circuit abroad successful Application for many years, but because the kind of automobile is a lot, it is not identical that every kind of required spark coil of automobile detects index, each automobile iron core sensor circuit requires standard also different.So this Project Product kind is a lot, is unfavorable for integrated production, must design for different car types.
Summary of the invention
In view of the deficiency of prior art existence, the utility model provides a kind of automobile ignition coil core sensor circuit, this circuit is by some simple common circuit, realize the function that external chip degree circuit completes, the technological scheme of taking is, a kind of automobile ignition coil core sensor circuit, it is characterized in that: circuit is connected to a tip node fire coil iron core of input resistance R1, one end of another termination voltage-stabiliser tube D1 and one end of current-limiting resistance R2, another termination power of voltage-stabiliser tube D1, the B utmost point of another termination transistor Q1 of current-limiting resistance R2 and one end of filter capacitor C1, another termination power of filter capacitor C1, the E utmost point of transistor Q1 connects one end of power supply and protective resistance R3, the C utmost point of transistor Q1 connects one end of another termination output resistance R4 of protective resistance R3, the ECU of the other end sending and receiving motivation of output resistance R4.
The beneficial effects of the utility model are by some simple common circuit, have realized the function that external chip degree circuit completes, and have effectively got around the technology barriers of external producer, greatly reduce production costs.
Brief description of the drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of automobile ignition coil core sensor circuit, circuit is connected to a tip node fire coil iron core of input resistance R1, one end of another termination voltage-stabiliser tube D1 and one end of current-limiting resistance R2, another termination power of voltage-stabiliser tube D1, the B utmost point of another termination transistor Q1 of current-limiting resistance R2 and one end of filter capacitor C1, another termination power of filter capacitor C1, the E utmost point of transistor Q1 connects one end of power supply and protective resistance R3, the C utmost point of transistor Q1 connects one end of another termination output resistance R4 of protective resistance R3, the ECU of the other end sending and receiving motivation of output resistance R4.
In the utility model design, adopt transistor Q1, it is a kind of voltage-type control means, its needed driving current and driving power are very little, its input resistance is very large, and switching loss is little, can be directly and analog or digital function block join and must not add any additional interface circuit.Transistor Q1 is as switching device, and the saturation conduction of main research transistor Q1 and two states of cut-off in sensor circuit, make it open rising edge and turn-off all steeper of trailing edge.Transistor Q1 is the same with other power electronic devices, and its application-dependent is in circuit condition and switch environment.Therefore in the design process of product, the driving of transistor Q1 and protective circuit are difficult point and the emphasis of circuit design, are the key links of whole circuit.
The power supply of ignition coil iron core sensor circuit is generally car accumulator; its voltage functuation is larger; use suitable voltage-stabilizing device D1 and capacitance resistance ware C1; by too high voltage stabilization within the required range; effectively protection controller internal components has prevented the fluctuation of the igniting induced signal R4 of coil simultaneously.
In automobilism, induced voltage can be interfered unavoidably, and spike voltage is high; Utilize high power device R1, can effectively exclude the interference signal, prevent coil error detection, meanwhile, the output of ignition coil iron core sensor circuit R4 will be a complete signal waveform, and the ECU of motor can effectively detect iron core induced signal.
Claims (1)
1. an automobile ignition coil core sensor circuit, it is characterized in that: circuit is connected to a tip node fire coil iron core of input resistance R1, one end of another termination voltage-stabiliser tube D1 and one end of current-limiting resistance R2, another termination power of voltage-stabiliser tube D1, the B utmost point of another termination transistor Q1 of current-limiting resistance R2 and one end of filter capacitor C1, another termination power of filter capacitor C1, the E utmost point of transistor Q1 connects one end of power supply and protective resistance R3, the C utmost point of transistor Q1 connects one end of another termination output resistance R4 of protective resistance R3, the ECU of the other end sending and receiving motivation of output resistance R4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320826981.6U CN203640905U (en) | 2013-12-16 | 2013-12-16 | Induction circuit of ignition coil iron core of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320826981.6U CN203640905U (en) | 2013-12-16 | 2013-12-16 | Induction circuit of ignition coil iron core of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640905U true CN203640905U (en) | 2014-06-11 |
Family
ID=50872159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320826981.6U Expired - Fee Related CN203640905U (en) | 2013-12-16 | 2013-12-16 | Induction circuit of ignition coil iron core of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896509A (en) * | 2015-06-12 | 2015-09-09 | 胥丹 | Release flare ignition system |
-
2013
- 2013-12-16 CN CN201320826981.6U patent/CN203640905U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896509A (en) * | 2015-06-12 | 2015-09-09 | 胥丹 | Release flare ignition system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |