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A startup control method, device and construction machinery
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A controller and engine technology, applied in mechanical equipment, engine components, engine starting, etc., can solve the problems of motor damage, affecting the service life of the motor, and the failure of the diesel engine to start normally, and achieve the effect of improving the service life.
Active Publication Date: 2022-07-19
SANY HEAVY MACHINERY
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Problems solved by technology
In the current existing technology, it often happens that the diesel engine cannot start normally after the motor is started, resulting in damage to the motor and affecting the service life of the motor
Method used
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no. 1 example
[0046] see figure 1 , this embodiment provides a starting control device 100 , the starting control device 100 provided by this embodiment can avoid causing damage to the motor 200 , thereby improving the service life of the motor 200 .
[0047] The start-up control device 100 provided in this embodiment is applied to construction machinery (not shown in the figure), wherein the construction machine includes an engine (not shown in the figure), a motor 200 and the start-up control device 100 provided in this embodiment, and the engine and the motor 200 are drive-connected , the starting control device 100 is electrically connected to the motor 200 for starting the motor 200, so that the motor 200 can drive the engine to start and start working.
[0048]In this embodiment, the starting control device 100 includes a controller 110, a starting relay 120, and a starting unit 130. The starting unit 130 and the starting relay 120 are electrically connected to the controller 110, and...
no. 2 example
[0069] see figure 2 , this embodiment provides a startup control method, which can avoid damage to the motor 200 , thereby increasing the service life of the motor 200 .
[0070] The startup control method provided in this embodiment has the same working process and working principle as the startup control device 100 provided in the first embodiment. For the parts not mentioned in this embodiment, reference may be made to the first embodiment.
[0071] The specific steps of the startup control method are as follows:
[0072] In step S100, the real-time rotational speed and fuel pressure value of the engine are acquired.
[0073] In this embodiment, the real-time rotational speed represents the rotational speed of the engine in the current state, and the fuel pressure value represents the current real-time pressure value of diesel in the engine.
[0074] Step S200, it is determined whether the fuel execution valve of the engine is opened.
[0075] In this embodiment, when t...
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Abstract
Embodiments of the present invention provide a startup control method, device, and construction machinery, which relate to the technical field of construction machinery. The startup control method includes obtaining the real-time speed and fuel pressure value of the engine; judging whether the fuel actuator valve of the engine is opened and a startup command of the engine is received; The fuel pressure value controls the start of the motor. In the embodiment of the present invention, starting the motor through the open fuel actuator valve, the real-time speed of the engine and the fuel pressure value can avoid the failure of the engine due to the failure of the fuel actuator valve or the fuel pressure value and the real-time speed when the motor is started. The motor is still turned on when it is normally started or has been started normally, causing damage to the motor, thereby increasing the service life of the motor.
Description
technical field [0001] The present invention relates to the technical field of construction machinery, and in particular, to a start-up control method, device and construction machinery. Background technique [0002] At present, the power source of the excavator is a diesel engine, and the diesel engine is directly driven by the motor. In the process of starting the diesel engine, the motor is first turned on to drive the diesel engine to start. In the current prior art, it often happens that after the motor is started, the diesel engine cannot be started normally, thereby causing damage to the motor and affecting the service life of the motor. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a starting control method, device and construction machinery, which can avoid damage to the motor and improve the service life of the motor. [0004] Embodiments of the present invention can be implemented as follows: [0005] In a first aspect, a...
Claims
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Application Information
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