CN219317086U - Cold start device for diesel engine - Google Patents
Cold start device for diesel engine Download PDFInfo
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- CN219317086U CN219317086U CN202223165766.4U CN202223165766U CN219317086U CN 219317086 U CN219317086 U CN 219317086U CN 202223165766 U CN202223165766 U CN 202223165766U CN 219317086 U CN219317086 U CN 219317086U
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Abstract
The embodiment of the application discloses a cold start device of a diesel engine, which is used for improving the starting capability of the engine in an abnormal environment state. The device of the embodiment of the application comprises: a delay power generation system, a common rail heating system; the common rail heating system is arranged in the engine, and the delay power generation system is connected with the generator; the engine is connected with the generator, and the generator is connected to the traction motor through the delay power generation system; the common rail heating system comprises a common rail pipe and an induction module; the induction module comprises an induction coil and an induction driver, one end of the induction driver is connected with the engine controller, the other end of the induction driver is connected with the induction coil, and the induction coil is wound outside the common rail pipe; the delay power generation system comprises a delay power generation chip and a delay device, wherein one end of the delay power generation chip is connected with the generator, and the other end of the delay power generation chip is connected with the traction motor; the delay power generation chip is used for setting a threshold value of the power generation voltage.
Description
Technical Field
The embodiment of the application relates to the field of engines, in particular to a cold start device of a diesel engine.
Background
The DPF is a diesel particulate filter, is a device installed in an exhaust system of a diesel vehicle and used for filtering to reduce particulate matters in exhaust, and is one of the most effective and direct methods for purifying diesel particulate matters.
In the prior art, DPFs have been commercially applied to commercial diesel engines, and the carbon content of the DPFs must be regenerated (accumulated carbon is burned out by oxygen in exhaust gas) to a certain extent, otherwise, the problems of blocking and burning of the DPFs caused by too high carbon content of the DPFs easily occur. With the stricter emission regulations, the emission pollutants in the starting process are gradually brought into the monitoring range, the engine is difficult to start in extremely cold environment, the fuel combustion efficiency is extremely low, the insufficient combustion of diesel oil causes a large amount of toxic emission pollutants such as HC, and otherwise, soot causes rapid full carbon and even overload of DPF.
Disclosure of Invention
The application provides a cold start device of a diesel engine, which is used for improving the starting capability of the engine under the abnormal environment state.
The first aspect of the present application provides a cold start device for a diesel engine, comprising:
a delay power generation system, a common rail heating system;
the common rail heating system is arranged in the engine, and the delay power generation system is connected with the generator;
the engine is connected with the generator, the generator is connected to a traction motor through the delay power generation system, and the traction motor is used for outputting kinetic energy to load equipment;
the common rail heating system comprises a common rail pipe and an induction module;
the induction module comprises an induction coil and an induction driver, one end of the induction driver is connected with the engine controller, the other end of the induction driver is connected with the induction coil, and the induction coil is wound outside the common rail pipe;
the delay power generation system comprises a delay power generation chip and a delay device, wherein one end of the delay power generation chip is connected with a generator, and the other end of the delay power generation chip is connected with the traction motor;
the delay power generation chip is used for setting a threshold value of power generation voltage, and the delay device is used for delaying the generator to output kinetic energy to the load equipment.
Optionally, the delay power generation system is provided with a housing matched with the delay power generation chip, and the housing is used for protecting the delay power generation chip.
Optionally, the delay power generation chip is provided with a conduction switch, the conduction switch is used for connecting the delay device and the generator, and the conduction switch is used for controlling the delay device.
Optionally, a memory is built in the delay power generation chip, and the memory is used for storing a voltage value required by the generator to activate the delay.
Optionally, the common rail heating system further includes:
the relay is used for controlling the induction module, and the power supply is used for supplying energy to the induction module.
Optionally, the power supply is a direct current power supply.
Optionally, a temperature sensor is disposed on the common rail pipe, and the temperature sensor is connected with the engine controller.
Optionally, the positive pole of the generator is connected with the traction motor through the delay power generation system, and the negative pole of the generator is directly connected with the traction motor.
Optionally, one end of the relay connected with the engine controller is a control end, and one end of the relay connected with the induction driver and the power supply is a working end.
Optionally, the relay has at least three positive pole output, connects respectively power, induction driver with engine controller, the negative pole output of relay is connected the engine controller.
According to the technical scheme, the temperature of the common rail pipe is increased through the common rail heating system, so that the temperature of diesel oil in the common rail pipe is increased, diesel oil sprayed out of the common rail pipe can be atomized better, the combustion efficiency of the diesel oil is improved when an engine is started in a cold environment, after the engine is started, the generator outputs kinetic energy to a traction motor, but the generator can generate resistance when generating electricity, under abnormal environment, the engine cannot provide a condition of driving the generator to supply electricity to the traction motor when entering a starting state, in order to avoid the condition, an engine controller can calculate the rotating speed of the generator according to the rotating speed of the engine through a delay power generation chip, and the voltage which can be generated by the generator under the rotating speed is determined through the relation between the rotating speed of the generator and the power generation voltage, only when the voltage meets the condition, the generator can activate a delay, the delay acts to stabilize the power generation voltage of the generator, and the generator can generate electricity to the traction motor after the timing of the delay is finished.
Drawings
FIG. 1 is a schematic view of an embodiment of a cold start apparatus for a diesel engine according to the present application;
FIG. 2 is a schematic diagram of one embodiment of a common rail heating system in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram of an embodiment of a delayed power generation system according to an embodiment of the present application.
Detailed Description
The application provides a cold start device of a diesel engine, which is used for improving the starting capability of the engine under the abnormal environment state.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely used to illustrate the relative positional relationships between the components or portions, and do not particularly limit the specific mounting orientations of the components or portions.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the structures, proportions, sizes, etc. shown in the drawings herein are shown and described in detail for purposes of illustration only, and are not intended to limit the scope of the utility model, which is defined in the claims, unless otherwise indicated, and which are otherwise used by those skilled in the art to which the utility model pertains.
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1 to 3, an embodiment of a device for cold start of a diesel engine is provided, including:
a delay power generation system 1 and a common rail heating system 2;
the common rail heating system 2 is arranged in the engine 3, and the delay power generation system 1 is connected with the generator 4;
the engine 3 is connected with the generator 4, the generator 4 is connected to a traction motor 5 through the delay power generation system 1, and the traction motor 5 is used for outputting kinetic energy to a load device;
the common rail heating system 2 comprises a common rail pipe 21 and an induction module 22;
the induction module 22 comprises an induction coil 221 and an induction driver 222, one end of the induction driver 222 is connected with the engine controller 31, the other end of the induction driver is connected with the induction coil 221, and the induction coil 221 is wound outside the common rail pipe 21;
the delay power generation system 1 comprises a delay power generation chip 11 and a delay device 12, wherein one end of the delay power generation chip 11 is connected with the power generator 4, and the other end of the delay power generation chip is connected with the traction motor 5;
the delay power generation chip 11 is used for setting a threshold value of a power generation voltage, and the delay device 12 is used for delaying the power generator to output kinetic energy to the load equipment.
Specifically, the common rail heating system 2 is used for heating the common rail pipe 21 in the engine 3, the delay power generation system 1 is used for delaying the power supply of the power generator 4 to the traction motor 5, the common rail heating system 2 is arranged around the common rail pipe 21 in the engine 3, the induction coil 221 in the induction module 22 of the common rail heating system 2 is wound on the common rail pipe 21, when the induction driver 222 drives the induction coil 221, the induction coil 221 can generate heat, so that the common rail pipe 21 is heated, diesel oil in the common rail pipe is heated, and the purpose of atomizing the diesel oil in a low-temperature environment is achieved.
After the engine 3 is started, the engine 3 needs to supply energy to the generator 4 so that the generator 4 is started, the generator 4 generates power to generate resistance, the power generation voltage of the generator 4 and the rotating speed of the generator 4 form a linear relation, and the rotating speed of the generator 4 can be converted to the rotating speed of the engine 3 through a speed ratio, so that different power generation rotating speeds can be indirectly set by setting different trigger voltages.
In the starting process, when the rotation speed of the engine 3 is higher than a certain value, the voltage of the generator 4 is higher than a set threshold value, which indicates that the engine 3 has the starting capability, and at this time, the generator 4 meets the condition of external power generation, namely the condition of driving the traction motor 5, but in order to ensure the successful starting of the engine 4 and the idling stability after the successful starting, the generator 4 needs to output electric power to the outside after a certain time delay (the time can be set by a program) by delaying the delay of the power generation system 1, and the hardware and the control strategy are implemented, so that the starting process resistance can be reduced.
The generator 4 is connected with the traction motor 5 through the delay power generation system 1 (can also be directly connected with a driving device), after the engine controller 31 determines that the power generation voltage of the generator 4 meets the external power generation condition, the generator 4 starts the delay power generation system 1 to delay, and after the delay is finished, the delay power generation system 1 turns on a line for supplying energy to the traction motor 5 by the generator 4.
In this embodiment of the present application, the delay power generation system 1 is provided with a housing 13 matched with the delay power generation chip 11, the housing 13 is used for protecting the delay power generation chip 11, the delay power generation system 1 needs to be connected between the generator 4 and the traction motor 5, and the voltage of the working environment thereof becomes unstable due to the power of the two, so that the working environment of the delay power generation system 1 needs to be optimized through the housing 13 in order to avoid that the delay power generation system 1 is out of function in the severe working environment, the positive electrode of the generator 4 is connected with the traction motor 5 through the delay power generation system 1, and the negative electrode of the generator 4 is directly connected with the traction motor 5.
In this embodiment, the delay power generation chip 11 is provided with a conducting switch 14, the conducting switch 14 is used for connecting the delay 12 and the generator 4, the conducting switch 14 is used for controlling the delay 12, and the conducting switch 14 is disposed between the delay and the generator and controlled by the delay power generation chip 1.
In this embodiment of the present application, the memory 15 is disposed in the delay power generation chip 11, the memory 15 is configured to store a voltage value that the power generator 4 needs to reach when activating the retarder 12, and the memory 15 is disposed in the delay power generation chip 11, so that the delay power generation chip 11 itself can store data, thereby achieving the purpose of storing a preset voltage, the preset voltage is used for comparing with a current power generation voltage of the power generator 4, and when the current power generation voltage of the power generator 4 is greater than the preset voltage, the delay power generation chip 11 controls the on switch 14 to be turned on, thereby triggering the retarder 12.
In the embodiment of the present application, the common rail heating system 2 further includes a relay 23 and a power supply 24, wherein the relay 23 is used for controlling the sensing module 22, and the power supply 24 is used for supplying power to the sensing module 22. Specifically, the relay 23 and the power supply 24 are respectively used for protecting the working state of the common rail heating system 2 and protecting the power supply 24, the power supply 24 is a direct current power supply, after the power supply 24 supplies power to the induction module 22, the induction module 22 can control the induction coil 221 to heat the common rail pipe 21 through the induction driver 222, and in practical situations, an insulating layer is further arranged between the common rail pipe 21 and the induction coil 221 and used for ensuring that the temperature of the common rail pipe 21 cannot be lost rapidly. Specifically, the one end that the relay is connected engine control ware is the control end, the relay is connected induction driver with the one end of power is the work end, the relay has at least three positive pole output, connect respectively the power induction driver with engine control ware, the negative pole output of relay is connected engine control ware.
In this embodiment, the common rail pipe 21 is provided with a temperature sensor 211, the temperature sensor 211 is connected to the engine controller 31, and the temperature sensor 211 is mainly used for transmitting temperature data of the common rail pipe 21 to the engine controller 31, so that the engine controller 31 can perform corresponding logic operation according to the temperature of the common rail pipe.
According to the technical scheme, the temperature of the common rail pipe is increased through the common rail heating system, so that the temperature of diesel oil in the common rail pipe is increased, diesel oil sprayed out of the common rail pipe can be atomized better, the combustion efficiency of the diesel oil is improved when an engine is started in a cold environment, after the engine is started, the generator outputs kinetic energy to a traction motor, but the generator can generate resistance when generating electricity, under abnormal environment, the engine cannot provide a condition of driving the generator to supply electricity to the traction motor when entering a starting state, in order to avoid the condition, an engine controller can calculate the rotating speed of the generator according to the rotating speed of the engine through a delay power generation chip, and the voltage which can be generated by the generator under the rotating speed is determined through the relation between the rotating speed of the generator and the power generation voltage, only when the voltage meets the condition, the generator can activate a delay, the delay acts to stabilize the power generation voltage of the generator, and the generator can generate electricity to the traction motor after the timing of the delay is finished.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM, random access memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Claims (10)
1. A cold start apparatus for a diesel engine, comprising:
a delay power generation system, a common rail heating system;
the common rail heating system is arranged in the engine, and the delay power generation system is connected with the generator;
the engine is connected with the generator, the generator is connected to a traction motor through the delay power generation system, and the traction motor is used for outputting kinetic energy to load equipment;
the common rail heating system comprises a common rail pipe and an induction module;
the induction module comprises an induction coil and an induction driver, one end of the induction driver is connected with an engine controller, the other end of the induction driver is connected with the induction coil, the induction coil is wound outside the common rail pipe, an insulating layer is arranged between the induction coil and the common rail pipe, and the insulating layer is used for stabilizing the temperature of the common rail pipe;
the delay power generation system comprises a delay power generation chip and a delay device, wherein one end of the delay power generation chip is connected with a generator, and the other end of the delay power generation chip is connected with the traction motor;
the delay power generation chip is used for setting a threshold value of power generation voltage, and the delay device is used for delaying the generator to output kinetic energy to the load equipment.
2. The apparatus of claim 1, wherein the delay power generation system is provided with a housing mated with the delay power generation chip, the housing for protecting the delay power generation chip.
3. The apparatus of claim 1, wherein the delay power generation chip is provided with a turn-on switch for connecting the delay with the generator, the turn-on switch for controlling the delay.
4. The apparatus of claim 1, wherein the delay power generation chip has a memory built in for storing a voltage value that the generator needs to reach to activate the delay.
5. The apparatus of any one of claims 1 to 4, wherein the common rail heating system further comprises:
the relay is used for controlling the induction module, and the power supply is used for supplying energy to the induction module.
6. The apparatus of claim 5, wherein the power source is a direct current power source.
7. The apparatus according to any one of claims 1 to 4, characterized in that a temperature sensor is provided on the common rail pipe, the temperature sensor being connected to the engine controller.
8. The apparatus of any one of claims 1 to 4, wherein a positive pole of the generator is connected to the traction motor through the delayed power generation system, and a negative pole of the generator is directly connected to the traction motor.
9. The apparatus of claim 5, wherein an end of the relay connected to the engine controller is a control end, and an end of the relay connected to the induction driver and the power supply is a working end.
10. The apparatus of claim 5, wherein the relay has at least three positive outputs connected to the power source, the induction drive and the engine controller, respectively, and a negative output of the relay is connected to the engine controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223165766.4U CN219317086U (en) | 2022-11-28 | 2022-11-28 | Cold start device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223165766.4U CN219317086U (en) | 2022-11-28 | 2022-11-28 | Cold start device for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317086U true CN219317086U (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223165766.4U Active CN219317086U (en) | 2022-11-28 | 2022-11-28 | Cold start device for diesel engine |
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|---|---|
| CN (1) | CN219317086U (en) |
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- 2022-11-28 CN CN202223165766.4U patent/CN219317086U/en active Active
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