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Gas flow sensor with integrated control and its integrated controlling method

A gas flow and integrated control technology, applied in electrical control, engine control, fuel injection control, etc., can solve problems such as unreasonable signal processing, unstable system operation, measurement errors, etc., to achieve accurate control of fuel injection volume, system The effect of stable operation and high measurement accuracy

Inactive Publication Date: 2007-09-05
宁波太平洋电控系统有限公司
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Problems solved by technology

[0007] Another purpose of the present invention is to solve the technical problems of unreasonable signal processing in the prior art, which may easily cause measurement errors, and the system operation is not stable enough; it provides a reasonable signal processing process, high measurement accuracy, and stable system operation. Gas flow sensor for integrated control and integrated control method thereof

Method used

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  • Gas flow sensor with integrated control and its integrated controlling method
  • Gas flow sensor with integrated control and its integrated controlling method
  • Gas flow sensor with integrated control and its integrated controlling method

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Embodiment

[0022] As shown in FIG. 1 and FIG. 2 , the integrated control gas flow sensor includes a flow sensor head 1 , a temperature sensor head 3 and a humidity sensor head 4 connected to a single chip microcomputer 2 . The aforementioned flow sensor head 1 , temperature sensor head 3 and humidity sensor head 4 are all connected to the flow conversion processing unit 5 of the single-chip microcomputer. The flow conversion processing unit 5 is connected to the flow voltage conversion unit 6 . The flow sensing head 1 , the temperature sensing head 3 and the humidity sensing head 4 are respectively connected with a flow operational amplifier 71 , a temperature operational amplifier 72 and a humidity operational amplifier 73 . The flow operational amplifier 71 , temperature operational amplifier 72 and humidity operational amplifier 73 are connected to the A / D conversion unit 8 , and the A / D conversion unit 8 is connected to the flow conversion processing unit 5 . A storage unit 9 for st...

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Abstract

A method for integrated-controlling gas flow rate includes separately utilizing flow rate sensing head, temperature sensing head and humidity sensing head to detect out gas flow rate value, temperature value and humidity value of flow rate transducer under operation state of said transducer; inputting said values into monolithic computer and generating relevant voltage value after said values are processed by said computer. The transducer used fro realizing said method is also disclosed.

Description

technical field [0001] The invention relates to the field of gas measurement, in particular to an integrated control gas flow sensor and an integrated control method thereof. Background technique [0002] The air flow sensor is an important component in the electronic fuel injection system of the automobile engine, and its performance is an important factor affecting engine performance such as engine power, fuel consumption, and exhaust emissions. In order to obtain the best concentration of mixed gas under various operating conditions, the electronically controlled gasoline injection engine must accurately measure the amount of air sucked into the engine at each moment, which is used as the main basis for the ECU to calculate (control) the fuel injection quantity . The central controller (ECU) of the EFI system controls the corresponding fuel injection according to the signal sent by the air flow sensor to ensure the "air-fuel ratio" under various working conditions. If t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/68F02D41/18
Inventor 黄金火黄涛黄浩
Owner 宁波太平洋电控系统有限公司
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