Detecting method of oil injector detecting control circuit
A detection control and detection method technology, applied in the direction of machine/structural component testing, instruments, measuring devices, etc., can solve problems such as limited detection means, expensive and limited detection equipment, and achieve satisfactory measurement accuracy, simple structure, and low cost Effect
Inactive Publication Date: 2012-02-08
力帆科技(集团)股份有限公司
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Therefore, the detection of the fuel injector is very important. Before the fuel injector is installed on the motorcycle, the performance of the fuel injector needs to be tested. The detection work mainly includes static flow detection and dynamic flow detection, but the existing technical conditions are limited, only First, use a multimeter or an ohmmeter to detect the fuel injector to obtain its equivalent resistance value; second, connect the power to the fuel injector, and manually use a stopwatch to read the specified time to obtain the fuel injection volume of the fuel injector within the specified time , so as to obtain the static flow detection data of the injector, the dynamic flow detection data cannot be obtained at all, and the professional detection equipment is very expensive
[0003] The disadvantage of the existing technology is that the current detection methods are very limited, limited to resistance detection and manual static flow detection, the detection accuracy is extremely unreliable, and dynamic flow detection cannot be performed.
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[0070] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0071] Such as figure 1 As shown, a fuel injector detection control circuit includes a main control chip U1, the output terminal of the main control chip U1 is connected to the gate of the switch tube U2, the source of the switch tube U2 is grounded, and the drain is connected to the fuel injection The control terminal of the injector, the power supply terminal of the injector is connected to the power supply of the injector;
[0072] The main control chip U1 is also provided with a first control terminal AN0, a second control terminal AN1 and a third control terminal AN2;
[0073] The first control terminal AN0 is connected in series with the first switch S1 and then grounded, and the first control terminal AN0 is connected in series with the second resistor R2 and then connected to the positive power supply;
[0074] The second control terminal AN1 is con...
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The invention discloses a detecting method of an oil injector detecting control circuit, wherein the oil injector detecting control circuit comprises a main control chip; the output end of the main control chip is connected with a grid electrode of a switch pipe; a source electrode of the switch pipe is grounded; a drain electrode is connected with the control end of the oil injector; the power supply end of the oil injector is connected with an oil injector power supply; the main control chip is further provided with a first control end, a second control end and a third control end; and the main control chip is further provided with a first, a second, a third and a fourth display ends. The detecting method of an oil injector detecting control circuit is not only able to accomplish accurate test of the static flow and the dynamic flow, but also can set the oil injection period, oil injection pulse width and oil injection times. The invention is simple in structure, and is a simple method for analyzing dynamic and static features of oil injector with simple cost; and the measuring precision also can meet the need.
Description
technical field [0001] The invention belongs to the technical field of motor vehicle fuel injector detection, and in particular relates to a detection method of a fuel injector detection control circuit. Background technique [0002] The fuel injector is a precision component and a key component of the vehicle's EFI system. It is a core component for accurately measuring the amount of fuel and forming a fuel spray. Therefore, the detection of the fuel injector is very important. Before the fuel injector is installed on the motorcycle, the performance of the fuel injector needs to be tested. The detection work mainly includes static flow detection and dynamic flow detection, but the existing technical conditions are limited, only First, use a multimeter or an ohmmeter to detect the fuel injector to obtain its equivalent resistance value; second, connect the power to the fuel injector, and manually use a stopwatch to read the specified time to obtain the fuel injection volume ...
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IPC IPC(8): F02M65/00
Inventor 周向东马文选
Owner 力帆科技(集团)股份有限公司