CN114263544B - Parking regeneration control method for engineering vehicle - Google Patents
Parking regeneration control method for engineering vehicle Download PDFInfo
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- CN114263544B CN114263544B CN202111629514.XA CN202111629514A CN114263544B CN 114263544 B CN114263544 B CN 114263544B CN 202111629514 A CN202111629514 A CN 202111629514A CN 114263544 B CN114263544 B CN 114263544B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
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Abstract
The invention relates to the field of engineering vehicles, and discloses an engineering vehicle parking regeneration control method, wherein when an engine is confirmed to need parking regeneration, a gear switch is switched to a first gear and the load of the engine is cut off, so that parking regeneration is accurately performed, and a large amount of harmful tail gas discharged before parking regeneration can be prevented from polluting the environment; and when the parking regeneration signal is received, adjusting the opening of the accelerator to be zero, and then controlling the engine to perform parking regeneration. The parking regeneration is usually not carried out immediately when the parking regeneration of the engine is confirmed, the accelerator opening degree of the gear switch in the first gear can be set according to actual requirements, the rotating speed of the engine before the parking regeneration meets the actual requirements, and the unlocking of the rotating speed of the engine and the idling rotating speed of the engine when the gear switch is set in the first gear is realized.
Description
Technical Field
The invention relates to the field of engineering vehicles, in particular to a parking regeneration control method for an engineering vehicle.
Background
In order to solve the problem of tail gas pollution discharged by engineering vehicles, a post-processor is arranged on an exhaust pipeline of an engine to carry out post-processing on tail gas of the engine so as to ensure that gas treated by the post-processor meets the relevant regulation requirements of tail gas discharge of the engine.
Soot will continuously accumulate in the aftertreatment device during the exhaust treatment in the aftertreatment device, and when the soot accumulated in the aftertreatment device reaches a certain level, the treatment efficiency of the aftertreatment device is greatly reduced. The soot accumulated in the after-treatment device needs to be cleaned by combustion to restore the working efficiency of the after-treatment device, and the process is called regeneration.
The regeneration of the postprocessor is divided into driving regeneration and parking regeneration, and the current parking regeneration control method comprises the following steps:
a gear switch is arranged on the engineering vehicle, and when the gear switch is in a first gear, the engine is in an idling condition without a valve request; when the engineering vehicle sends out prompt information that an engine needs to be parked and regenerated, if an operator wants to park and regenerate, the engineering vehicle is driven to a flat ground, a gear switch is adjusted to a first gear, and a load is cut off; and then presses the parking regeneration switch. When a pressing signal of a parking regeneration switch is received, whether an idling condition that an engine is in a non-accelerator request is met or not is judged, and no load is generated; and if so, controlling the engine to perform parking regeneration.
When the method is adopted for parking regeneration, the engine rotating speed when the gear switch is in the first gear and the idle rotating speed of the engine are locked, namely the engine does not have a throttle request when the gear switch is in the first gear.
Because the working conditions of the engineering vehicle are various in the actual working process, the requirements on the engine speed when the gear switch is in the first gear are different, and the engine cannot be flamed out when the gear switch is usually required to be in the first gear and the whole machine does any action, so that the engine speed when the gear switch is in the first gear cannot be too low, and particularly when the engineering vehicle works in a high-altitude area, the engine speed when the gear switch is in the first gear needs to be properly increased to avoid flameout of the engine. When the vehicle is waiting for rest, the rotating speed of the engine is expected to be reduced so as to reduce the oil consumption. And the engine rotating speed when the gear switch is in the first gear is locked with the idling rotating speed of the engine, so that the engine rotating speed when the gear switch is in the first gear cannot be set according to the requirement of the whole vehicle.
Disclosure of Invention
The invention aims to provide a parking regeneration control method for an engineering vehicle, which can set the engine speed when a gear switch is in the first gear according to the requirement of the whole vehicle and realize the unlocking of the engine speed and the idle speed when the gear switch is in the first gear.
In order to achieve the purpose, the invention adopts the following technical scheme:
the engineering vehicle comprises an electronic control engine and a gear switch for adjusting the opening degree of an accelerator, wherein the gear switch is provided with a plurality of gears, the opening degrees of the accelerator corresponding to different gears are different, and the opening degrees of the accelerator correspond to the rotating speed of the electronic control engine one by one;
the parking regeneration method of the post processor of the engineering vehicle comprises the following steps:
when the engine is confirmed to need parking regeneration, the gear switch is switched to the first gear, and the load of the engine is cut off;
acquiring a parking regeneration signal, and adjusting the opening of an accelerator to be zero when the parking regeneration signal is received;
and controlling the engine to perform parking regeneration.
When the parking regeneration of the engine is confirmed to be needed, the gear switch is switched to the first gear and the load of the engine is cut off, so that the parking regeneration is accurately performed, and the gear switch is switched to the first gear, so that the pollution to the environment caused by a large amount of harmful tail gas discharged before the parking regeneration can be avoided; and when the parking regeneration signal is received, adjusting the opening of the accelerator to be zero, and then controlling the engine to perform parking regeneration. The parking regeneration is usually not carried out immediately when the parking regeneration of the engine is confirmed, the accelerator opening degree of the gear switch in the first gear can be set according to actual requirements, the rotating speed of the engine cannot meet the actual requirements before the parking regeneration, and the unlocking of the rotating speed of the engine and the idle rotating speed of the engine when the gear switch is set in the first gear is realized.
The parking regeneration control method for the engineering vehicle is an optional technical scheme, when the condition that the engine needs to be parked and regenerated is confirmed, the prompting information that the engine needs to be parked and regenerated is sent, and an operator can conveniently park and regenerate according to the prompting information.
As an optional technical solution of the above-mentioned parking regeneration control method for the engineering vehicle, the engineering vehicle includes a parking regeneration switch, and the parking regeneration signal is a pressing signal of the parking regeneration switch.
As an optional technical scheme of the parking regeneration control method for the engineering vehicle, after the prompt message that the parking regeneration of the engine is required is sent, whether the gear switch is in the first gear is judged;
if the gear switch is not in the first gear, a prompt message for prompting an operator to adjust the gear switch to the first gear is sent.
As an optional technical solution of the above method for controlling parking regeneration of a construction vehicle, after a prompt message that the engine needs to be parked and regenerated is sent, whether the engine load is cut off is judged;
if the engine load is not cut off, a prompt message is sent to prompt the operator to cut off the engine load.
If the operator receives the prompt information that the engine needs to be parked and regenerated, the arrangement is adopted, so that the operator can prepare for parking and regeneration step by step according to the prompt information.
As an optional solution of the above method for controlling parking regeneration of the work vehicle, the method for controlling parking regeneration of the engine includes:
judging whether the opening degree of the accelerator is zero and the load of the engine is cut off;
and if the accelerator opening is zero and the engine load is cut off, controlling the engine to perform parking regeneration.
With the arrangement, the safety of the parking regeneration can be improved, and the accelerator opening is zero and the engine load is cut off before the parking regeneration is carried out.
As an optional technical solution of the above-mentioned method for controlling the parking regeneration of the engineering vehicle, after the information for prompting the engine to need the parking regeneration is sent, if the signal for the parking regeneration is not received within the specified time, the information for prompting the engine to need the parking regeneration is sent again.
By adopting the arrangement, the situation that an operator forgets to park and regenerate the engineering vehicle can be avoided.
As an optional technical solution of the above-mentioned parking regeneration control method for the engineering vehicle, after the prompt message that the parking regeneration of the engine is required is sent, if the parking regeneration signal is not received within the specified time, the accelerator opening is forcibly adjusted to the accelerator opening corresponding to the first gear.
When the parking regeneration is carried out on the engine but the parking regeneration is not carried out on the engineering vehicle by an operator, the opening degree of the accelerator is forcibly adjusted to the opening degree of the accelerator corresponding to the first gear, so that the air pollution caused by the reduction of the processing capacity of the postprocessor due to the large amount of exhaust gas discharged when the operator continues to drive the vehicle at a high gear can be avoided.
As an optional technical solution of the above-mentioned parking regeneration control method for the engineering vehicle, the prompting message that the accelerator opening is to be forcibly adjusted to the accelerator opening corresponding to the first gear is sent while the accelerator opening is forcibly adjusted to the accelerator opening corresponding to the first gear.
To different regions, can set up the accelerator opening when keeping off the position switch and being in one according to the altitude, the regional of altitude can suitably increase the accelerator opening when keeping off the position switch and being in one to avoid the regional engine speed of high altitude to hang down and cause the engine to stall excessively. And for the region with lower altitude, the accelerator opening degree of the gear switch in the first gear can be properly reduced, and the oil consumption of the engine during the rest of the vehicle can be reduced.
As an optional technical scheme of the parking regeneration control method for the engineering vehicle, after parking regeneration is completed, the accelerator opening is adjusted to the accelerator opening when the gear switch is in the first gear, so that the rotating speed of the engine meets the actual requirement.
The invention has the beneficial effects that: according to the engineering vehicle post-processor parking regeneration method and the engineering vehicle, when the parking regeneration of the engine is confirmed, the gear switch is switched to the first gear and the load of the engine is cut off, so that the parking regeneration is accurately carried out; the gear switch is switched to the first gear, so that the pollution to the environment caused by a large amount of harmful tail gas discharged before parking regeneration can be avoided; and when the parking regeneration signal is received, adjusting the opening of the accelerator to be zero, and then controlling the engine to perform parking regeneration.
The parking regeneration can not be immediately performed when the condition that the engine needs to be parked and regenerated is confirmed, the accelerator opening degree when the gear switch is in the first gear can be set according to actual requirements, the rotating speed of the engine cannot meet the actual requirements before the parking regeneration, and the unlocking of the rotating speed of the engine and the idling rotating speed of the engine when the gear switch is in the first gear is realized.
To different regions, can set up the accelerator opening when keeping off the position switch and being in one according to the altitude, the regional of altitude can suitably increase the accelerator opening when keeping off the position switch and being in one to avoid the regional engine speed of high altitude to hang down and cause the engine to stall excessively. And for the region with lower altitude, the accelerator opening degree of the gear switch in the first gear can be properly reduced, and the oil consumption of the engine during the rest of waiting for the vehicle is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a main flow chart of a parking regeneration method of an aftertreatment device of an engineering vehicle, which is provided by the embodiment of the invention;
fig. 2 is a detailed flowchart of a parking regeneration method for an aftertreatment device of a working vehicle according to an embodiment of the invention.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
The embodiment provides a parking regeneration control method for a construction vehicle, wherein the construction vehicle can be an excavator, a bulldozer and the like, and the excavator is taken as an example in the embodiment.
The exhaust pipeline of the engine of the engineering vehicle is provided with the post processor which is used for carrying out post processing on tail gas in the exhaust pipeline of the engine, harmful gas in the tail gas is removed by the post processor, the tail gas processed by the post processor can be directly discharged into the atmosphere, and the requirements of relevant tail gas discharge regulations are met.
The post-processor performs post-processing by gradually accumulating the amount of smoke and dust in the post-processor, resulting in gradually decreasing the post-processing efficiency of the post-processor, and thus monitors the accumulated amount of smoke and dust in the post-processor in real time, and performs regeneration such as parking regeneration and parking regeneration when the accumulated amount of smoke and dust reaches a target accumulated amount.
The smoke and dust amount in the post-processor is not easy to measure, but the pressure difference between the inlet and the outlet of the post-processor is gradually increased along with the gradual accumulation of the smoke and dust amount in the post-processor, so that the pressure difference between the inlet and the outlet of the post-processor can be detected by the pressure sensor, and when the pressure difference between the inlet and the outlet of the post-processor reaches the target pressure difference, the requirement of regeneration treatment on the engine is confirmed.
It should be noted that what kind of situation is that parking regeneration is performed and what kind of situation is that driving regeneration is performed is a prior art in the field, and a detailed description thereof is omitted. The present embodiment mainly describes the control method of the parking regeneration in detail.
The engineering vehicle comprises an electronic control engine and a gear switch for adjusting the opening degree of an accelerator, wherein the gear switch is provided with a plurality of gears, the corresponding accelerator opening degrees of different gears are different, and the accelerator opening degrees correspond to the rotating speed of the electronic control engine one by one.
As shown in fig. 1, the method for parking and regenerating the post-processor of the engineering vehicle comprises the following steps:
s1, when the engine needs to be parked and regenerated, the gear switch is switched to the first gear, and the load of the engine is cut off.
In the working process of the engineering vehicle, whether the engine needs to be parked and regenerated is always judged, and if the fact that the engine needs to be parked and regenerated is confirmed, the whole vehicle controller sends out prompt information that the engine needs to be parked and regenerated. In this embodiment, the parking regeneration indicator light is provided on the work vehicle, and when it is determined that the parking regeneration of the work vehicle is required, the parking regeneration indicator light is turned on or starts to blink. In other embodiments, a sound player may be further disposed on the engineering vehicle, and when the pressure difference between the inlet and the outlet of the post-processor reaches a target pressure difference, the sound player operates to play the voice message that the engine needs to be parked and regenerated. In the construction vehicle provided with the display, text, image information, and the like indicating that "the engine needs to be parked and regenerated" may be displayed on the display.
When the parking regeneration of the engine is confirmed, the engineering vehicle may be in the working process, the engineering vehicle needs to be driven to the flat ground, and in the process of driving the engineering vehicle to the flat ground, if the gear switch is not in the first gear, the engineering vehicle can be caused to discharge a large amount of tail gas seriously polluting air, so that when the parking regeneration of the engine is confirmed, the gear switch is firstly switched to the first gear.
In the running process of the gear switch in the first gear, if the engine runs with load, the flameout probability of the engine is very easy to increase, and therefore after the gear switch is switched to the first gear, the load of the engine needs to be cut off. After it is confirmed that the engine needs to be parked and regenerated, the engine load may be cut off and the shift switch may be switched to the first shift position.
After the fact that the engine needs to be parked and regenerated is confirmed, the vehicle control unit sends out prompt information that the engine needs to be parked and regenerated. The prompt information may be voice information played by a voice player, light information of a lighted or blinking prompt lamp, text or image information displayed by a display, and the like, and is not limited specifically herein.
After the vehicle control unit sends out prompt information that the engine needs to be parked and regenerated, the vehicle control unit judges whether the gear switch is in the first gear, and if the gear switch is not in the first gear, the vehicle control unit sends out prompt information for prompting an operator to adjust the gear switch to the first gear.
Specifically, if the operator confirms that the parking regeneration is to be performed on the engine, the engineering vehicle is driven to the flat ground for the parking regeneration. When an operator receives prompt information which is sent by the vehicle control unit and prompts the operator to adjust the gear switch to the first gear, the operator can switch the gear switch to the first gear. When an operator switches the gear switch to a first gear, a vehicle control unit in communication with the gear switch receives a signal that the gear switch is in the first gear, and after receiving the signal that the gear switch is in the first gear, the vehicle control unit sends a signal for adjusting the accelerator opening to the accelerator opening corresponding to the first gear to an engine controller, and the engine controller controls the accelerator opening to be adjusted to the accelerator opening corresponding to the first gear.
After the vehicle control unit sends out prompt information that the engine needs to be parked and regenerated, whether the engine load is cut off or not is judged, and if the fact that the engine load is not cut off is confirmed, the vehicle control unit sends out prompt information for prompting an operator to cut off the engine load. The prompt message for prompting the operator to turn off the engine load may be a voice message played by a voice player, a light message for lighting or blinking a prompt lamp, a text or image message displayed by a display, and the like, and is not particularly limited herein.
It should be noted that the vehicle control unit may send a prompt message for performing the parking regeneration step, such as prompting an operator to first shift the gear switch, then switch off the load, and then press the parking regeneration switch.
The engineering vehicle is provided with a pilot handle which is used for controlling working components on the engineering vehicle such as main control valves of various oil cylinders to switch states, when the pilot handle is positioned at the middle position, the main control valve is positioned at the middle position, and various working components stop working. When an operator receives prompt information which is sent by the vehicle control unit and prompts the operator to cut off the engine load, if the operator confirms that the parking regeneration is required, the pilot handle is switched to the middle position.
And S2, acquiring a parking regeneration signal, and adjusting the opening of the accelerator to be zero when the parking regeneration signal is received.
And a parking regeneration switch is arranged on the engineering vehicle and is communicated with a vehicle control unit of the engineering vehicle. The parking regeneration signal is a pressing signal of a parking regeneration switch. After the operator confirms that the engineering vehicle is to be subjected to parking regeneration, the operator presses a parking regeneration switch to perform parking regeneration after the engineering vehicle runs to the flat ground.
Before parking regeneration, the engineering vehicle needs to be adjusted to an idling working condition, namely, the accelerator opening is adjusted to zero, so that after the parking regeneration switch is pressed by an operator, the whole vehicle controller receives a pressing signal of the parking regeneration switch, sends a signal for adjusting the accelerator opening to zero to the engine controller, and controls the accelerator opening to be adjusted to zero by the engine controller.
And S3, controlling the engine to perform parking regeneration.
How to perform parking regeneration in particular is a conventional technique in the art and is not described in detail here.
When the vehicle control unit receives a pressing signal of the parking regeneration switch, the vehicle control unit sends a signal for adjusting the opening degree of the accelerator to zero to the engine controller and simultaneously sends a parking regeneration request signal to the engine controller. After receiving the signal for adjusting the accelerator opening to zero, the engine controller adjusts the accelerator opening to zero for a very short time, so that after receiving the parking regeneration request signal for a preset time, the engine controller judges whether the accelerator opening is zero and the engine load is cut off, and if the accelerator opening is zero and the engine load is cut off, the engine is controlled to perform parking regeneration; if the engine speed does not meet the requirement, the prompting information that the engine needs to be parked and regenerated needs to be sent again.
The preset time is a known value and can be determined according to repeated experiments.
After the parking switch is pressed, if the accelerator opening is not zero and the engine load is cut off, the accelerator opening is adjusted to the accelerator opening corresponding to the first gear in order to make the engine speed meet the actual requirement when the prompt message that the engine needs to be parked and regenerated is issued again.
According to the parking regeneration method of the post processor of the engineering vehicle, when the situation that the parking regeneration of the engine is needed is confirmed, the gear switch is switched to the first gear, the load of the engine is cut off, and accurate parking regeneration is achieved; the gear switch is switched to the first gear, so that the environment pollution caused by a large amount of harmful tail gas discharged before parking regeneration can be avoided; and when the parking regeneration signal is received, adjusting the opening of the accelerator to be zero, and then controlling the engine to perform parking regeneration.
The parking regeneration is usually not carried out immediately when the parking regeneration of the engine is confirmed, the accelerator opening degree of the gear switch in the first gear can be set according to actual requirements, the rotating speed of the engine cannot meet the actual requirements before the parking regeneration, and the unlocking of the rotating speed of the engine and the idle rotating speed of the engine when the gear switch is set in the first gear is realized.
Specifically, to different regions, can set up the throttle opening when keeping off the position switch and being in one according to height above sea level, the high-altitude region can suitably increase the throttle opening when keeping off the position switch and being in one to avoid the regional engine speed of high altitude to hang down excessively and cause the engine to put out a fire. And for the region with lower altitude, the accelerator opening degree of the gear switch in the first gear can be properly reduced, and the oil consumption of the engine during the rest of waiting for the vehicle can be reduced.
Further, after parking regeneration is completed, the accelerator opening is adjusted to the accelerator opening when the gear switch is in the first gear, so that the rotating speed of the engine meets the actual requirement.
Further, after the prompt message that the engine needs to be parked and regenerated is sent, if the parking regeneration signal is not received within the specified time, the prompt message that the engine needs to be parked and regenerated is sent again, so that the condition that the exhaust gas emitted by the engine pollutes the atmosphere due to the fact that the operator does not park and regenerate is avoided.
Further, after the prompt message that the engine needs to be parked and regenerated is sent, if the parking regeneration signal is not received within the specified time, the accelerator opening is forcibly adjusted to the accelerator opening corresponding to the first gear, so that the engineering vehicle is prevented from continuously running in the gear with the gear switch higher than the first gear, and the exhaust emission is reduced.
Further, in order to avoid the influence of the sudden change of the accelerator opening degree on the safety of the vehicle, the prompt message that the accelerator opening degree is forcibly adjusted to the accelerator opening degree corresponding to the first gear is sent out while the accelerator opening degree is forcibly adjusted to the accelerator opening degree corresponding to the first gear.
As shown in fig. 2, the specific process of the parking regeneration of the post-processor of the engineering vehicle provided by the embodiment is as follows:
when the vehicle control unit confirms that parking regeneration is needed, the vehicle control unit sends out prompt information that the engine needs to be parked and regenerated; if an operator wants to park and regenerate the engineering vehicle, the engineering vehicle is driven to a flat ground, the gear switch is adjusted to the first gear, and the load of the engine is cut off; an operator presses a parking regeneration switch; the vehicle control unit sends a signal for adjusting the accelerator opening to zero and a parking regeneration request signal to an engine controller, the engine controller adjusts the accelerator opening to zero, the engine controller controls the engine to perform parking regeneration when determining that the accelerator opening is zero and the engine load is cut off, and when the parking regeneration is finished, the vehicle control unit sends a signal for adjusting the accelerator opening to an accelerator opening corresponding to a first gear to the engine controller, and the engine controller adjusts the accelerator opening to an accelerator opening corresponding to the first gear.
If the operator does not perform parking regeneration on the engineering vehicle, the vehicle control unit sends a signal for forcibly adjusting the accelerator opening to the accelerator opening corresponding to the first gear to the engine controller after the time is set, and simultaneously sends prompt information that the engine needs to perform parking regeneration again; and the engine controller forcibly adjusts the accelerator opening to the accelerator opening corresponding to the first gear when receiving the signal of the vehicle control unit.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. The engineering vehicle comprises an electronic control engine and a gear switch for adjusting the opening degree of a throttle valve, wherein the gear switch is provided with a plurality of gears, the throttle valve corresponding to different gears is different, and the throttle valve corresponds to the rotating speed of the electronic control engine one by one; the parking regeneration method of the post processor of the engineering vehicle is characterized by comprising the following steps:
when the engine is confirmed to need parking regeneration, the gear switch is switched to the first gear, and the load of the engine is cut off;
acquiring a parking regeneration signal, and adjusting the opening of an accelerator to zero when the parking regeneration signal is received;
and controlling the engine to perform parking regeneration.
2. The method for controlling parking regeneration of a construction vehicle according to claim 1, wherein when it is confirmed that the engine needs to be subjected to parking regeneration, a message for prompting that the engine needs to be subjected to parking regeneration is issued.
3. The method for controlling parking regeneration of a work vehicle according to claim 2, characterized in that the work vehicle comprises a parking regeneration switch, and the parking regeneration signal is a pressing signal of the parking regeneration switch.
4. The method for controlling parking regeneration of the engineering vehicle as claimed in claim 2, wherein after the prompt message that the parking regeneration of the engine is required is sent, whether the gear switch is in the first gear is judged;
and if the gear switch is not in the first gear, sending out prompt information for prompting an operator to adjust the gear switch to the first gear.
5. The method for controlling parking regeneration of a construction vehicle according to claim 2, wherein after a prompt message that parking regeneration of the engine is required is issued, it is determined whether the engine load is cut off;
if the engine load is not cut off, a prompt message is sent to prompt the operator to cut off the engine load.
6. The method for controlling parking regeneration of a work vehicle according to claim 2, wherein the controlling the engine to perform parking regeneration includes:
judging whether the opening degree of the accelerator is zero and the load of the engine is cut off;
and if the accelerator opening is zero and the engine load is cut off, controlling the engine to perform parking regeneration.
7. The method according to claim 2, wherein after the information for prompting the necessity of parking regeneration of the engine is issued, if the parking regeneration signal is not received within a predetermined time, the information for prompting the necessity of parking regeneration of the engine is issued again.
8. The method for controlling parking regeneration of a construction vehicle according to claim 2, wherein after the prompt message that the parking regeneration of the engine is required is issued, if the parking regeneration signal is not received within a specified time, the accelerator opening is forcibly adjusted to the accelerator opening corresponding to the first gear.
9. The method according to claim 8, wherein the information that the accelerator opening is forcibly adjusted to the accelerator opening corresponding to the first gear is provided at the same time as the accelerator opening is forcibly adjusted to the accelerator opening corresponding to the first gear.
10. The work vehicle parking regeneration control method according to any one of claims 1 to 9, characterized in that after completion of parking regeneration, the accelerator opening is adjusted to the accelerator opening at the time when the shift switch is in the first gear.
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