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Self-inspection method and system for engine electronic injection executer

An actuator and engine technology, applied in the direction of engine control, machine/engine, electrical control, etc., can solve problems such as affecting driving safety, inability to identify it, reducing power and economy, and achieving the effect of ensuring safety.

Inactive Publication Date: 2016-12-14
CHONGQING LONCIN MOTOR
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Problems solved by technology

[0002] The electronic fuel injection system, also known as the electronic fuel injection system, is a new type of fuel supply system that replaces the carburetor of the gasoline engine. Therefore, the reliability of the electronic fuel injection system greatly affects the power, fuel economy and emission level of the vehicle. In order to ensure the reliable operation of the electronic fuel system, the existing motor vehicles usually The sensors of the electronic fuel injection system will be self-tested, that is, the intake pressure sensor, intake air temperature sensor, oxygen sensor and throttle position sensor in the electronic fuel injection system will be self-tested, and the actuators will not be self-tested. Therefore, when the actuator of the EFI system fails, the existing vehicle self-inspection system cannot recognize it, causing the engine to fail to work normally, greatly reducing its power and economy, and even affecting driving safety

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  • Self-inspection method and system for engine electronic injection executer
  • Self-inspection method and system for engine electronic injection executer

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Embodiment Construction

[0018] figure 1 It is a logic control diagram of the self-checking method of the engine electronic fuel injection actuator of the present invention; as shown in the figure: the self-checking method of the engine electronic fuel injection actuator of the present embodiment comprises the following steps: a. Send a self-test signal; b. judge whether there is a fault in the actuator according to the feedback signal of the actuator; c. display the detection result, through the self-check module in the existing electronic controller (ECU) of the engine in the present embodiment Send a self-test signal to the actuator and judge whether the actuator has a fault according to the feedback signal, and display the judgment result on a display such as an instrument panel. The self-test system of this embodiment can quickly and effectively identify the fault of the actuator of the EFI system , and display the cause of the failure to ensure that the user can grasp the working status of the v...

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Abstract

The invention discloses a self-inspection method and system for an engine electronic injection executer. The method comprises the following steps that a, a self-inspection signal is sent to the executer of an engine electronic fuel injection system; b, whether a fault exists in the executer or not is judged according to a feedback signal of the executer; and c, a detection result is displayed. The system comprises the engine electronic injection executer, a self-inspection controller and a display module. By means of the method and system, the fault of the electronic injection system executer can be rapidly and effectively recognized, the fault reason is displayed, it is ensured that a user masters the work state of the electronic injection system of a whole vehicle immediately, and the traveling safety is guaranteed.

Description

technical field [0001] The invention relates to a self-inspection method of an electronic injection system, in particular to a self-inspection method and system for an engine electronic injection actuator. Background technique [0002] The electronic fuel injection system, also known as the electronic fuel injection system, is a new type of fuel supply system that replaces the carburetor of the gasoline engine. Therefore, the reliability of the electronic fuel injection system greatly affects the power, fuel economy and emission level of the vehicle. In order to ensure the reliable operation of the electronic fuel system, the existing motor vehicles usually The sensors of the electronic fuel injection system will be self-tested, that is, the intake pressure sensor, intake air temperature sensor, oxygen sensor and throttle position sensor in the electronic fuel injection system will be self-tested, and the actuators will not be self-tested. Therefore, when the actuator of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22
CPCF02D41/221F02D2041/224F02D2041/228
Inventor 李刚李庆峰张汉李先文唐程
Owner CHONGQING LONCIN MOTOR
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