Low temperature starting fault rapid detecting device and method for engine
A technology for detecting device and engine speed, applied to engine components, machines/engines, mechanical equipment, etc., can solve the problems of high labor intensity, time-consuming, difficult disassembly and inspection, and achieve the effect of reducing labor intensity and improving efficiency.
Active Publication Date: 2016-03-09
HEBEI HUABEI DIESEL ENGINE
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Problems solved by technology
The low-temperature start-up auxiliary device is composed of solenoid valve, glow plug, controller, oil circuit, circuit, etc. Since the structure involves multiple components, plus the original starter motor, battery, engine, etc., the low-temperature start-up process is subject to multiple links. Any problem with any component will affect the normal start of the entire engine
When a problem occurs, it is very difficult to disassemble and check one by one, which is labor-intensive and time-consuming, and often has an unacceptable impact on emergency vehicles and equipment
Method used
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Embodiment Construction
[0023] Below in conjunction with embodiment the present invention is described in further detail:
[0024] Such as figure 1 As shown, the engine low-temperature starting fault rapid detection device includes a controller and a detection device, the detection device is connected to the controller to transmit the detection signal to the controller, and the W terminal of the generator is connected to the controller through a signal line to detect the generator speed signal There are 2K resistors and a diode in series on the signal line between the W terminal of the generator and the controller. The controller is connected to the positive and negative poles of the battery through connecting lines to detect the voltage signal of the battery. The controller is also equipped with a display for specific faults. display screen. The present invention detects the working status of the relevant components involved in the low-temperature start-up, compares the detection results, quickly j...
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The invention discloses a low temperature starting fault rapid detecting device and method for an engine, and belongs to the technical field of engine fault detection. The low temperature starting fault rapid detecting device for the engine comprises a controller and detection equipment connected with the controller; the detection equipment comprises a Hall sensor which is installed on a starting motor and allows an electric wire to penetrate, a temperature sensor in an air inlet pipe of the engine and a pressure sensor at an oil inlet of a high-pressure pump of the engine; and an electricity generator W terminal is connected to the controller through a signal line, and the controller is connected with the positive pole and the negative pole of a storage battery through connecting lines. The detecting method includes the steps that the controller receives and processes a detecting signal of the detection equipment, a rotating speed signal of an electricity generator and a voltage signal of the storage battery; and a detection procedure of the controller judges fault causes of a low temperature starting auxiliary device and displays the fault causes on a display screen. By means of the low temperature starting fault rapid detecting device and method, real-time detection on parameters in the starting process is carried out, determination of causes of low temperature starting faults and output display are rapidly achieved, an operator can rapidly position the faults, and the faults can be removed in time.
Description
technical field [0001] The invention relates to the technical field of engine fault detection, in particular to a rapid detection device and method for low-temperature starting faults of an engine. Background technique [0002] At present, in vehicles, the diesel engine is driven by the starter motor. After reaching the starting speed, the compression top dead center temperature in the cylinder rises to a temperature that can ignite the diesel, and the engine can start normally. For the low temperature environment, due to the low intake air temperature, the compression top dead center temperature is low, and the diesel cannot be ignited. For this reason, it is usually equipped with a low-temperature start-up auxiliary device to heat the intake air to increase the temperature of the top dead center and improve the start-up performance. The low-temperature start-up auxiliary device is composed of solenoid valve, glow plug, controller, oil circuit, circuit, etc. Since the stru...
Claims
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IPC IPC(8): F02B77/08
CPCF02B77/083
Inventor 勾志勇商海昆林宝德刘辉胡春萍
Owner HEBEI HUABEI DIESEL ENGINE