CN112483295A - Starting control method and device and engineering machinery - Google Patents
Starting control method and device and engineering machinery Download PDFInfo
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- CN112483295A CN112483295A CN202011338783.6A CN202011338783A CN112483295A CN 112483295 A CN112483295 A CN 112483295A CN 202011338783 A CN202011338783 A CN 202011338783A CN 112483295 A CN112483295 A CN 112483295A
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- motor
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- pressure value
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
- F02N11/0811—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop using a timer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
- F02N2200/025—Engine oil pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
- F02N2200/041—Starter speed
Abstract
The embodiment of the invention provides a starting control method and device and engineering machinery, and relates to the technical field of engineering machinery. The starting control method comprises the steps of obtaining the real-time rotating speed and the fuel pressure value of the engine; judging whether the starting of a fuel execution valve of the engine is met and a starting instruction of the engine is received; and if the starting requirement of the fuel execution valve is met and the starting instruction of the engine is received, controlling the motor to start according to the real-time rotating speed and the fuel pressure value. In the embodiment of the invention, the motor is started by the opened fuel execution valve, the real-time rotating speed of the engine and the fuel pressure value, so that the damage of the motor caused by the fact that the engine cannot be normally started or the motor is still opened when the engine is normally started due to the fact that the fuel execution valve is not opened or the fuel pressure value and the real-time rotating speed are avoided when the motor is started, and the service life of the motor is prolonged.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a starting control method and device and engineering machinery.
Background
At present, the power source of the excavator is a diesel engine, the diesel engine is directly driven by a motor, and in the process of starting the diesel engine, the motor is started firstly and the diesel engine is driven by the motor to start. In the prior art, after the motor is started, the diesel engine can not be normally started frequently, so that the motor is damaged, and the service life of the motor is influenced.
Disclosure of Invention
The invention aims to provide a starting control method, a starting control device and engineering machinery, which can avoid damage to a motor and prolong the service life of the motor.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a start control method for controlling a motor to start, where the start control method includes:
acquiring the real-time rotating speed and the fuel pressure value of the engine;
judging whether the starting of a fuel execution valve of the engine is met and a starting instruction of the engine is received;
and if the starting requirement of the fuel oil execution valve is met and a starting instruction of the engine is received, controlling the motor to start according to the real-time rotating speed and the fuel oil pressure value.
In an optional embodiment of the present invention, the step of controlling the motor to start according to the real-time rotation speed and the fuel pressure value includes:
judging whether the real-time rotating speed is less than a preset rotating speed and the fuel pressure value is greater than or equal to the preset pressure value;
and if the real-time rotating speed is less than the preset rotating speed and the fuel pressure value is greater than or equal to the preset pressure value, controlling the motor to start.
In an optional embodiment of the present invention, the start control method further includes:
and if the real-time rotating speed is greater than or equal to the preset rotating speed, controlling the motor to be closed.
In an optional embodiment of the present invention, the start control method further includes:
starting timing when the starting instruction is received;
judging whether the timing time is greater than the preset time or not;
and if the timing time is greater than or equal to the preset time, controlling the motor to be closed.
In a second aspect, an embodiment of the present invention provides a start control device, configured to control a motor to start, where the start control device includes a controller, a start relay and a start unit, where the start unit and the start relay are electrically connected to the controller, and the start relay is configured to be connected in series with the motor;
the starting unit is used for responding to a starting instruction of the engine and sending the starting instruction to the controller;
the controller is used for acquiring the real-time rotating speed and the fuel pressure value of the engine, and controlling the starting relay to be electrified according to the real-time rotating speed and the fuel pressure value after the fuel execution valve of the engine is opened and the starting instruction is received so as to start the motor.
In an optional embodiment of the present invention, the starting relay includes a first body and a normally open contact, the first body is electrically connected to the controller, and the normally open contact is used for being connected in series with the motor;
and the controller is used for controlling the starting relay to be electrified according to the real-time rotating speed and the fuel pressure value after a fuel execution valve of the engine is opened and the starting instruction is received, so that the normally open contact is closed to start the motor.
In an optional embodiment of the present invention, the start control device further includes a start cut-off relay, the start cut-off relay includes a second body and a first normally closed contact, the second body is electrically connected to the controller, and the first normally closed contact is electrically connected to the start relay;
the controller is used for controlling the second body to be electrified when the real-time rotating speed is greater than or equal to a preset rotating speed, so that the first normally closed contact is disconnected, and the first body is powered off to close the motor.
In an optional embodiment of the present invention, the start control device further includes a time relay, the time relay includes a third body and a second normally closed contact, the third body is electrically connected to the start unit, and the second normally closed contact is electrically connected to the start relay;
the third body is used for starting timing when the starting unit responds to the starting instruction;
the controller is used for controlling the third body to be electrified when the timing time is greater than or equal to the preset time, so that the second normally closed contact is disconnected, and the first body is powered off to close the motor.
In an optional embodiment of the present invention, the controller is configured to determine whether the real-time rotation speed is greater than a preset rotation speed, determine whether the fuel pressure value is greater than a preset pressure value, and control the motor to start when the real-time rotation speed is less than the preset rotation speed and the fuel pressure value is greater than or equal to the preset pressure value.
In a third aspect, an embodiment of the present invention provides a construction machine, where the construction machine includes an engine, a motor, and the start control device provided in the first aspect, where the engine is in transmission connection with the motor.
The embodiment of the invention has the following beneficial effects: the starting control method comprises the steps of obtaining the real-time rotating speed and the fuel pressure value of the engine; judging whether the starting of a fuel execution valve of the engine is met and a starting instruction of the engine is received; and if the starting requirement of the fuel execution valve is met and the starting instruction of the engine is received, controlling the motor to start according to the real-time rotating speed and the fuel pressure value.
In the embodiment of the invention, the motor is started by the opened fuel execution valve, the real-time rotating speed of the engine and the fuel pressure value, so that the damage of the motor caused by the fact that the engine cannot be normally started or the motor is still opened when the engine is normally started due to the fact that the fuel execution valve is not opened or the fuel pressure value and the real-time rotating speed are avoided when the motor is started, and the service life of the motor is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an electrical connection diagram of a start control device and a motor according to a first embodiment of the present invention.
Fig. 2 is a flowchart of steps S100 to S400 of a start control method according to a second embodiment of the present invention.
Fig. 3 is a flowchart of the substeps of step S400 and the flowchart of step S500 of the start control method according to the second embodiment of the present invention.
Fig. 4 is a flowchart of steps S600 to S800 of a start control method according to a second embodiment of the present invention.
Fig. 5 is a block diagram of a starting apparatus according to a second embodiment of the present invention.
Icon: 100-starting the control device; 110-a controller; 112-fuel pressure input; 114-rotational speed input; 116-pilot switch input; 118-an enable command input; 120-start relay; 122-a first body; 124-normally open contact; 130-a start-up unit; 140-start the cut-off relay; 142-a second body; 144-a first normally closed contact; 150-time relay; 152-a third body; 154-a second normally closed contact; 200-a motor; 300-starting means; 310-an acquisition module; 320-a first judgment module; 330-start module; 340-a receiving module; 350-a second judgment module; 360-closing the module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
First embodiment
Referring to fig. 1, the present embodiment provides a start control device 100, and the start control device 100 provided in the present embodiment can prevent the motor 200 from being damaged, thereby prolonging the service life of the motor 200.
The start control device 100 provided by this embodiment is applied to a construction machine (not shown), where the construction machine includes an engine (not shown), a motor 200 and the start control device 100 provided by this embodiment, the engine is in transmission connection with the motor 200, and the start control device 100 is electrically connected to the motor 200 and is used for starting the motor 200, so that the motor 200 can drag the engine to start and start work.
In the present embodiment, the start control device 100 includes a controller 110, a start relay 120 and a start unit 130, the start unit 130 and the start relay 120 are electrically connected to the controller 110, and the start relay 120 is used for being connected in series with the motor 200; the starting unit 130 is used for responding to a starting instruction of the engine and sending the starting instruction to the controller 110; the controller 110 is configured to obtain a real-time rotation speed and a fuel pressure value of the engine, and control the start relay 120 to be powered on according to the real-time rotation speed and the fuel pressure value after the fuel execution valve of the engine is opened and a start instruction is received, so as to start the motor 200.
In this embodiment, when the fuel execution valve of the engine is opened, it indicates that diesel oil enters into the engine, and after the controller 110 receives a start instruction, the start relay 120 is controlled to be powered on according to the real-time speed and the fuel pressure value of the engine, so as to control the motor 200 to start. In this embodiment, starting the motor 200 by the opened fuel execution valve, the real-time rotation speed of the engine and the fuel pressure value together can avoid the damage of the motor 200 caused by the fact that the engine cannot be normally started or the motor 200 is still opened when the engine is normally started due to the fact that the fuel execution valve is not opened or the fuel pressure value and the real-time rotation speed cause when the motor 200 is started, thereby prolonging the service life of the motor 200.
In this embodiment, the starting unit 130 may be a key switch or a button panel. When the starting unit 130 is a key switch, it is indicated to respond to a starting instruction when the operator inserts a key and hits START. Similarly, when the activation unit 130 is a button panel, when the operator presses the button panel, it indicates a response to the activation instruction.
In this embodiment, when the engine cannot be normally started due to the fact that the fuel execution valve is not opened or the fuel pressure value and the real-time rotating speed are caused, the battery is also fatally damaged if the engine is not started for multiple times within a short time, and the service life of the battery can be prolonged by starting the motor 200 in the manner provided by this embodiment.
When the motor 200 is started when the fuel execution valve is not opened, the fuel pressure in the engine cannot be built up, no oil exists in the engine, and the starting is always empty when the starting is unsuccessful.
In this embodiment, the controller 110 has a fuel pressure input 112, a speed input 114, a pilot switch input 116, and an activation command input 118, the fuel pressure input 112 being configured to receive a fuel pressure value. The speed input 114 is for receiving the real-time speed of the engine. The enable command input 118 is configured to receive an enable command. The pilot switch input 116 is used to determine the opening command for the hydraulic pilot valve.
In this embodiment, the controller 110 is configured to determine whether the real-time rotation speed is greater than a preset rotation speed, determine whether the fuel pressure value is greater than a preset pressure value, and control the motor 200 to start when the real-time rotation speed is less than the preset rotation speed and the fuel pressure value is greater than or equal to the preset pressure value.
In this embodiment, when the fuel pressure value is greater than the preset pressure value, it indicates that the fuel pressure value of the current engine reaches a pressure value at which work can be started. If the fuel pressure value is lower and cannot reach the engine starting fuel supply pressure value, when the motor 200 drags the engine to start, the engine cannot be started normally due to the fact that the fuel pressure value is insufficient.
The preset pressure value can be understood as the pressure value required when the engine is normally started, it is easy to understand that the fuel pressure values required by the starting of the engines of different models are different, and the value of the preset pressure value can be determined according to the engines of different models.
When the real-time rotating speed is less than the preset rotating speed, it indicates that the engine is not completely started currently, and at this time, the engine may be dragged to start through the motor 200. The preset rotation speed may be understood as the lowest rotation speed at which the engine normally operates. Similarly, it is easily understood that the rated rotating speeds of the engines of different models in normal operation are different, and the preset rotating speed can be specifically determined according to the engines of different models.
In the embodiment, the start relay 120 includes a first body 122 and a normally open contact 124, the first body 122 is electrically connected to the controller 110, and the normally open contact 124 is used for connecting in series with the motor 200; the controller 110 is configured to control the first body 122 to be powered according to the real-time rotation speed and the fuel pressure value after the fuel execution valve of the engine is opened and a start instruction is received, so that the normally open contact 124 is closed to start the motor 200, thereby driving the engine to operate normally.
In this embodiment, when the fuel execution valve of the engine is opened and a start instruction is received, the controller 110 powers the first body 122 according to the real-time rotation speed and the fuel pressure value, the first body 122 is powered on and then is closed at the normally open contact 124, and the motor 200 is powered on and started.
In this embodiment, the start control device 100 further includes a start cut-off relay 140, the start cut-off relay 140 includes a second body 142 and a first normally closed contact 144, the second body 142 is electrically connected to the controller 110, and the first normally closed contact 144 is electrically connected to the start relay 120; the controller 110 is configured to control the second body 142 to be powered on when the real-time rotation speed is greater than or equal to the preset rotation speed, so that the first normally closed contact 144 is opened, and the first body 122 is powered off to turn off the motor 200, thereby preventing the engine from starting up again.
In this embodiment, when the real-time rotation speed of the engine is greater than or equal to the preset rotation speed, it indicates that the engine has been started, and at this time, the motor 200 needs to be turned off in time, otherwise the engine runs at a high speed and drives the motor 200 to rotate at a high speed, which easily burns out the motor 200. The motor 200 is turned off after the engine is completely started, so that the motor 200 can be protected from being damaged, and the motor 200 can be timely separated from the engine after the engine runs normally.
In this embodiment, when the real-time rotation speed is greater than or equal to the preset rotation speed, the controller 110 controls the second body 142 to be powered on to open the first normally closed contact 144, so as to turn off the motor 200.
In this embodiment, the start control device 100 further includes a time relay 150, the time relay 150 includes a third body 152 and a second normally closed contact 154, the third body 152 is electrically connected to the start unit 130, and the second normally closed contact 154 is electrically connected to the start relay 120; the third body 152 is used for starting timing when the starting unit 130 responds to the starting instruction; the controller 110 is configured to control the third body 152 to be powered on when the counted time is greater than or equal to the preset time, so that the second normally-closed contact 154 is opened, and the first body 122 is powered off to turn off the motor 200.
In this embodiment, the preset time is generally set as the time taken by the engine from start to normal operation, the time relay 150 starts to count the time after receiving the start command, and the engine is normally started when the counted time is greater than or equal to the preset time, and the motor 200 may be turned off.
If the engine cannot be normally started after the starting instruction is received and the fuel execution valve is opened, the fuel pressure value is greater than the preset pressure value, and the real-time rotating speed is less than the preset rotating speed, an operator may start the engine for multiple times at the moment, which may cause damage to the motor 200. When the timing time reaches the preset time, the motor 200 is automatically turned off, so that the damage caused by long-time idling of the motor 200 can be avoided, and secondary protection is performed on the motor 200.
In this embodiment, the first normally closed contact 144 is in series with the second normally closed contact 154. The starting cut-off relay 140 and the time relay 150 play a double protection role for the motor 200, and when one of the two meets the condition, the motor 200 can be powered off and stop working.
In summary, in the start control device 100 provided in this embodiment, when the fuel actuator of the engine is opened, it indicates that diesel oil enters into the engine, and after the controller 110 receives the start instruction, the start relay 120 is controlled to be powered on according to the real-time rotation speed and the fuel pressure value of the engine, so as to control the motor 200 to start. In this embodiment, starting the motor 200 by the opened fuel execution valve, the real-time rotation speed of the engine and the fuel pressure value together can avoid the damage of the motor 200 caused by the fact that the engine cannot be normally started or the motor 200 is still opened when the engine is normally started due to the fact that the fuel execution valve is not opened or the fuel pressure value and the real-time rotation speed cause when the motor 200 is started, thereby prolonging the service life of the motor 200.
Second embodiment
Referring to fig. 2, the present embodiment provides a start control method, which can prevent the motor 200 from being damaged, thereby prolonging the service life of the motor 200.
The operation process and the operation principle of the start control method provided in this embodiment are the same as those of the start control device 100 provided in the first embodiment, and reference may be made to the first embodiment for those points not mentioned in this embodiment.
The starting control method comprises the following specific steps:
and step S100, acquiring the real-time rotating speed and the fuel pressure value of the engine.
In the embodiment, the real-time rotating speed represents the rotating speed of the engine in the current state, and the fuel pressure value represents the current real-time pressure value of diesel oil in the engine.
And step S200, judging whether a fuel execution valve of the engine is opened or not.
In the embodiment, when the fuel execution valve of the engine is opened, diesel oil enters the engine, and the engine is started by normal work in the process of starting the engine.
Step S300, determining whether an engine start command is received.
In this embodiment, the start command may be a key switch command or a button command.
And step S400, if the fuel execution valve is opened and a starting instruction of the engine is received, controlling the motor 200 to start according to the real-time rotating speed and the fuel pressure value.
In this embodiment, starting the motor 200 by the opened fuel execution valve, the real-time rotation speed of the engine and the fuel pressure value together can avoid the damage of the motor 200 caused by the fact that the engine cannot be normally started or the motor 200 is still opened when the engine is normally started due to the fact that the fuel execution valve is not opened or the fuel pressure value and the real-time rotation speed cause when the motor 200 is started, thereby prolonging the service life of the motor 200.
Referring to fig. 3, step S400 may include step S410, step S420 and step S430.
Step S410, judging whether the real-time rotating speed is less than a preset rotating speed.
And when the fuel pressure value is larger than the preset pressure value, the fuel pressure value of the current engine reaches a pressure value capable of starting to do work.
And step S420, judging whether the fuel pressure value is greater than or equal to a preset pressure value.
The preset pressure value can be understood as the pressure value required by the normal starting of the engine, and it is easy to understand that the pressure values required by the starting of the engines of different models are different, and the value of the preset pressure value can be determined according to the engines of different models.
In step S430, if the real-time rotation speed is less than the preset rotation speed and the fuel pressure value is greater than or equal to the preset pressure value, the motor 200 is controlled to start.
When the real-time rotating speed is less than the preset rotating speed, it indicates that the engine is not completely started currently, and at this time, the engine may be dragged to start through the motor 200.
In step S500, if the real-time rotation speed is greater than or equal to the preset rotation speed, the motor 200 is controlled to be turned off.
When the real-time rotating speed of the engine is greater than or equal to the preset rotating speed, the engine is started, the motor 200 needs to be disconnected in time, otherwise the engine runs at a high speed and drives the motor 200 to rotate at a high speed, and the motor 200 is easily burnt out.
Referring to fig. 4, in step S600, a timer is started when a start command is received.
Step S700, determining whether the timing time is greater than a preset time.
In general, the preset time is set to a time taken for the engine to operate normally from the start, and the time relay 150 starts to count time when the start instruction is received.
In step S800, if the timing time is greater than or equal to the preset time, the motor 200 is controlled to be turned off.
The motor 200 may be turned off when the engine has been normally started in a normal state when the counted time is greater than or equal to the preset time. If the engine cannot be normally started after the starting instruction is received and the fuel execution valve is opened, the fuel pressure value is greater than the preset pressure value, and the real-time rotating speed is less than the preset rotating speed, an operator may start the engine for multiple times at the moment, which may cause damage to the motor 200. When the timing time reaches the preset time, the motor 200 is automatically turned off, so that the damage caused by long-time idling of the motor 200 can be avoided, and secondary protection is performed on the motor 200.
Referring to fig. 5, the present embodiment further provides a starting apparatus 300, and the starting apparatus 300 of the present embodiment includes:
the obtaining module 310 is configured to obtain a real-time rotation speed and a fuel pressure value of the engine.
Step S100 of the start control method provided in this embodiment may be executed by the obtaining module 310.
The first determining module 320 is configured to determine whether the fuel execution valve of the engine is opened and a start instruction of the engine is received by the obtaining module 310.
Steps S200 and S300 of the start control method according to this embodiment can be executed by the first determining module 320.
The starting module 330 is configured to control the motor 200 to start according to the real-time rotation speed and the fuel pressure value if the fuel execution valve is opened and a starting instruction of the engine is received.
Step S400 and its sub-steps of the start control method provided by this embodiment may be executed by the start module 330.
The receiving module 340 is configured to start timing when a start instruction is received.
Step S600 of the start control method provided in this embodiment may be executed by the receiving module 340.
And a second determining module 350, configured to determine whether the timing time is greater than a preset time.
Step S600 of the start control method provided in this embodiment may be executed by the second determining module 350.
The shutdown module 360 is configured to control the motor 200 to shut down if the counted time is greater than or equal to a preset time.
Steps S400 and S800 of the start-up control method provided in this embodiment may be executed by the shutdown module 360.
The start control method and the start device 300 provided in this embodiment are mainly applied to engineering machinery, and the engineering machinery may be an excavator, a crane, a shovel, a compactor, and the like. The engineering machine includes a body, a memory, a processor, a peripheral interface, and a starting device 300, and the memory and the processor are both mounted on the body.
The memory and processor elements are electrically connected to each other, directly or indirectly, to enable data transfer or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The startup device 300 includes at least one software functional module that may be stored in a memory in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the server. The processor is used for executing executable modules stored in the memory, such as software functional modules and computer programs included in the starting device 300.
The Memory may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory is used for storing programs and voice data, and the processor executes the programs after receiving the execution instructions.
The processor may be an integrated circuit chip having signal processing capabilities. The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The processor couples various input/output devices to the processor as well as to the memory. In some embodiments, the processor and memory may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.
The peripheral interface couples various input/output devices to the processor as well as to the memory. In some embodiments, the peripheral interface, the processor, and the memory may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A start-up control method for controlling a motor (200) to start up, characterized by comprising:
acquiring the real-time rotating speed and the fuel pressure value of the engine;
judging whether the starting of a fuel execution valve of the engine is met and a starting instruction of the engine is received;
and if the starting requirement of the fuel oil execution valve is met and a starting instruction of the engine is received, controlling the motor (200) to start according to the real-time rotating speed and the fuel oil pressure value.
2. The start-up control method according to claim 1, wherein the step of controlling the start-up of the motor (200) according to the real-time rotation speed and the fuel pressure value comprises:
judging whether the real-time rotating speed is less than a preset rotating speed and the fuel pressure value is greater than or equal to a preset pressure value;
and if the real-time rotating speed is less than the preset rotating speed and the fuel pressure value is greater than or equal to the preset pressure value, controlling the motor (200) to start.
3. The startup control method according to claim 2, characterized in that the startup control method further includes:
and if the real-time rotating speed is greater than or equal to the preset rotating speed, controlling the motor (200) to be closed.
4. The startup control method according to claim 1, characterized in that the startup control method further includes:
starting timing when the starting instruction is received;
judging whether the timing time is greater than the preset time or not;
and if the timing time is greater than or equal to the preset time, controlling the motor (200) to be closed.
5. A starting control device for controlling the starting of a motor (200), characterized in that the starting control device (100) comprises a controller (110), a starting relay (120) and a starting unit (130), the starting unit (130) and the starting relay (120) are electrically connected with the controller (110), and the starting relay (120) is used for being connected with the motor (200) in series;
the starting unit (130) is used for responding to a starting instruction of an engine and sending the starting instruction to the controller (110);
the controller (110) is used for acquiring the real-time rotating speed and the fuel pressure value of the engine, and after the fuel execution valve of the engine is opened and the starting instruction is received, the starting relay (120) is controlled to be electrified according to the real-time rotating speed and the fuel pressure value so as to start the motor (200).
6. The start control device according to claim 5, characterized in that the start relay (120) comprises a first body (122) and a normally open contact (124), the first body (122) being electrically connected with the controller (110), the normally open contact (124) being used for being connected in series with the motor (200);
the controller (110) is used for controlling the starting relay (120) to be electrified according to the real-time rotating speed and the fuel pressure value after a fuel execution valve of the engine is opened and the starting instruction is received, so that the normally open contact (124) is closed, and the motor (200) is started.
7. The start-up control device of claim 6, characterized in that the start-up control device (100) further comprises a start-up cut-off relay (140), the start-up cut-off relay (140) comprising a second body (142) and a first normally closed contact (144), the second body (142) being electrically connected with the controller (110), the first normally closed contact (144) being electrically connected with the start-up relay (120);
the controller (110) is used for controlling the second body (142) to be electrified when the real-time rotating speed is greater than or equal to a preset rotating speed, so that the first normally closed contact (144) is disconnected, and the first body (122) is powered off to turn off the motor (200).
8. The start control device according to claim 6, characterized in that the start control device (100) further comprises a time relay (150), the time relay (150) comprising a third body (152) and a second normally closed contact (154), the third body (152) being electrically connected with the start unit (130), the second normally closed contact (154) being electrically connected with the start relay (120);
the third body (152) is used for starting timing when the starting unit (130) responds to the starting instruction;
the controller (110) is used for controlling the third body (152) to be electrified when the timing time is greater than or equal to the preset time, so that the second normally closed contact (154) is opened, and the first body (122) is powered off to turn off the motor (200).
9. The start control device according to claim 5, wherein the controller (110) is configured to determine whether the real-time rotation speed is greater than a preset rotation speed, determine whether the fuel pressure value is greater than a preset pressure value, and control the motor (200) to start when the real-time rotation speed is less than the preset rotation speed and the fuel pressure value is greater than or equal to the preset pressure value.
10. A working machine, comprising an engine, a motor (200) and a start control device (100) according to any of claims 5-9, said engine being in driving connection with said motor (200).
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Cited By (1)
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| CN114183257A (en) * | 2021-12-21 | 2022-03-15 | 上海中联重科桩工机械有限公司 | Engine control device and engine control method |
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