CN112208537A - Vehicle acceleration control method and system and vehicle - Google Patents

Vehicle acceleration control method and system and vehicle Download PDF

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Publication number
CN112208537A
CN112208537A CN202011118962.9A CN202011118962A CN112208537A CN 112208537 A CN112208537 A CN 112208537A CN 202011118962 A CN202011118962 A CN 202011118962A CN 112208537 A CN112208537 A CN 112208537A
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China
Prior art keywords
vehicle
signal
rotating speed
control unit
engine
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CN202011118962.9A
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Chinese (zh)
Inventor
邵晖
宋绍团
陶辉
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Guangxi Liugong Machinery Co Ltd
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Guangxi Liugong Machinery Co Ltd
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Priority to CN202011118962.9A priority Critical patent/CN112208537A/en
Publication of CN112208537A publication Critical patent/CN112208537A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

The embodiment of the invention discloses a vehicle acceleration control method, a vehicle acceleration control system and a vehicle. The vehicle acceleration control method is applied to a vehicle acceleration control system, the acceleration control system comprises a vehicle controller and an engine controller connected with the vehicle controller, and the method comprises the following steps: when the vehicle is in an idling state, the vehicle controller detects whether a preset type of load adjustment signal is received; if the vehicle control unit receives a preset type of load adjusting signal, the vehicle control unit outputs a rotating speed pre-adjusting signal to the engine controller; the engine controller responds to the rotating speed preset signal to increase the rotating speed of the vehicle to a preset rotating speed. According to the acceleration control method, the vehicle control unit outputs the rotating speed pre-adjusting signal after receiving the preset type of load adjusting signal, and controls the engine controller to pre-raise the rotating speed of the engine, so that the engine is controlled to act within the time of waiting for load adjustment, the rotating speed adjusting time of the engine is shortened, and the acceleration efficiency of the engine is improved.

Description

Vehicle acceleration control method and system and vehicle
Technical Field
The embodiment of the invention relates to a vehicle control technology, in particular to a vehicle acceleration control method, a vehicle acceleration control system and a vehicle.
Background
When the loader works, the engine speed is determined by an accelerator pedal signal, and if the accelerator pedal is not stepped on, the engine speed cannot be increased. In this case, when the worker operates the pilot handle or the shift operating handle, the engine speed is not increased but decreased due to the change in load. When the accelerator pedal is stepped again, the acceleration performance of the whole machine is influenced, even the whole machine is flamed out, and the working efficiency of the whole machine is influenced.
Disclosure of Invention
The embodiment of the invention provides a vehicle acceleration control method, a vehicle acceleration control system and a vehicle, and aims to improve the acceleration efficiency and experience of the whole vehicle.
In a first aspect, an embodiment of the present invention provides a vehicle acceleration control method, which is applied to a vehicle acceleration control system, where the vehicle acceleration control system includes a vehicle controller and an engine controller connected to the vehicle controller, and the method includes:
when the vehicle is in an idling state, the vehicle controller detects whether a preset type of load adjustment signal is received;
if the vehicle control unit receives the preset type of load adjusting signal, the vehicle control unit outputs a rotating speed pre-adjusting signal to the engine controller;
and the engine controller responds to the rotating speed presetting signal to increase the rotating speed of the vehicle to a preset rotating speed.
Optionally, the vehicle includes a shift operating handle, and the vehicle controller detects whether a preset type of load adjustment signal is received, including:
the vehicle control unit detects whether a preset type of reversing signal output by the speed change control handle is received or not;
correspondingly, if the vehicle control unit receives the preset type of load adjustment signal, the vehicle control unit outputs a rotation speed pre-adjustment signal to the engine controller, including:
and if the vehicle control unit receives the preset type of reversing signal, the vehicle control unit outputs a first rotating speed pre-adjusting signal to the engine controller.
Optionally, the preset type of reversing signal is a reversing signal for changing the vehicle from neutral to non-neutral.
Optionally, the vehicle includes a pilot operating handle, and the vehicle controller detects whether a preset type of load adjustment signal is received, including:
whether the vehicle control unit receives a pressure adjusting signal output by the pilot control handle or not;
correspondingly, if the vehicle control unit receives the preset type of load adjustment signal, the vehicle control unit outputs a rotation speed pre-adjustment signal to the engine controller, including:
and if the vehicle control unit receives the pressure adjusting signal, the vehicle control unit outputs a second rotating speed pre-adjusting signal to the engine controller.
Optionally, after the vehicle control unit detects whether a preset type of load adjustment signal is received, the method further includes:
if the vehicle control unit does not receive the preset type of load adjustment signal, the vehicle control unit does not output a control signal, and the engine controller controls the vehicle to keep running at the current rotating speed.
Optionally, the acceleration control system further comprises an accelerator pedal;
after the engine controller raises the rotation speed of the vehicle to a preset rotation speed in response to the rotation speed presetting signal, the method further comprises the following steps:
the engine controller responds to the travel signal of the accelerator pedal to increase the rotating speed of the vehicle to a target rotating speed.
Optionally, the preset rotation speed is determined by the engine controller in the process of determining the target rotation speed.
In a second aspect, the embodiment of the invention further provides a vehicle acceleration control system, which includes a vehicle controller and an engine controller;
the vehicle control unit is used for: when the vehicle is in an idle state, detecting whether a preset type of load adjustment signal is received; if the preset type of load adjusting signal is received, outputting a rotating speed presetting signal to the engine controller; wherein the preset type of load adjustment signal is a non-accelerator pedal signal;
the engine controller is configured to: and responding to the rotating speed presetting signal to increase the rotating speed of the vehicle to a preset rotating speed.
Optionally, the vehicle comprises a shift operating handle and a pilot operating handle;
the preset type load adjusting signal is a preset type reversing signal output by the variable speed control handle and/or a preset type load control signal output by the pilot control handle.
In a third aspect, the embodiment of the invention further provides a vehicle, which comprises the vehicle acceleration control system according to any embodiment of the invention.
According to the vehicle acceleration control method provided by the embodiment of the invention, when the vehicle is in an idling state, if the vehicle controller of the vehicle receives a preset type of load adjustment signal, the vehicle controller determines that the vehicle needs to accelerate, at the moment, the vehicle controller sends a rotating speed pre-adjustment signal to the engine controller, the engine controller pre-adjusts the output rotating speed of the engine, specifically, the idling rotating speed is increased to the preset rotating speed, and then the idling rotating speed is increased to the highest rotating speed on the basis of the preset rotating speed. In the acceleration control method in the embodiment, the vehicle control unit outputs the rotating speed preset signal after receiving the load adjustment signal of the preset type, and controls the engine controller to pre-raise the rotating speed of the engine, so that the engine is controlled to act within the time of waiting for the load adjustment, thereby shortening the rotating speed adjustment time of the engine and improving the acceleration efficiency of the engine. Meanwhile, in the embodiment, the rotating speed of the engine is pre-increased in the process of waiting for load adjustment, which is equivalent to increasing the output of the engine in advance, so that the condition that the rotating speed of the engine is reduced due to load increase and the condition that the engine is shut down possibly can be avoided in the process of load adjustment, and the acceleration efficiency of the vehicle is further improved.
Drawings
FIG. 1 is a flow chart of a vehicle acceleration control method according to an embodiment of the present invention;
FIG. 2 is a graph comparing acceleration times provided by embodiments of the present invention;
FIG. 3 is a flow chart of another method for controlling acceleration of a vehicle according to an embodiment of the present invention;
FIG. 4 is a flowchart of another vehicle acceleration control method according to an embodiment of the present invention;
fig. 5 is a block diagram of a vehicle acceleration control system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a flowchart of a vehicle acceleration control method according to an embodiment of the present invention. The acceleration control method can be applied to acceleration control of ordinary vehicles and heavy-duty vehicles. For example, according to the acceleration control method of the present embodiment, acceleration control can be performed on the excavator to improve the acceleration performance of the excavator. The acceleration control method is applied to a vehicle acceleration control system, and the acceleration control system comprises a vehicle control unit and an engine controller connected with the vehicle control unit. Referring to fig. 1, the acceleration control method includes the steps of:
s110, when the vehicle is in an idling state, the vehicle controller detects whether a preset type of load adjusting signal is received.
Wherein the predetermined type of load adjustment signal is a load increase signal for the vehicle, the predetermined type of load adjustment signal indicating that the vehicle engine requires an increased rotational speed output to match the increased load demand.
It is noted that the preset type of load adjustment signal in this embodiment is different from the accelerator pedal signal. In an embodiment, the preset type of load adjustment signal comprises a shift signal and a pressure adjustment signal of the vehicle. That is, when the vehicle is a normal vehicle, the preset type of load adjustment signal is a shift signal of the vehicle, for example, a shift signal for shifting from neutral to forward; when the vehicle is a heavy-duty vehicle, the preset type of load adjustment signal is a gear shift signal of the heavy-duty vehicle or a pressure adjustment signal of a hydraulic system. For example, when the vehicle is an excavator, the pressure adjustment signal may be a turning pressure adjustment signal of the excavator, an arm excavation pressure adjustment signal, or the like.
And S120, if the vehicle control unit receives the preset type of load adjusting signal, the vehicle control unit outputs a rotating speed pre-adjusting signal to the engine controller.
The rotating speed pre-adjusting signal is used for indicating an engine controller to pre-adjust the rotating speed of the engine, namely, the rotating speed of the engine is increased to an intermediate rotating speed, and then subsequent rotating speed increasing is carried out on the basis of the intermediate rotating speed.
In the prior art, when a vehicle is in an idling state, the vehicle controller does not participate in pre-acceleration rotation speed control, the rotation speed of an engine is only related to an accelerator signal, and the vehicle controller does not participate in control, so that a pre-acceleration process does not exist in the prior art.
In this embodiment, after receiving the preset type of load adjustment signal, the vehicle control unit instructs the engine controller to increase the output rotation speed of the engine from the idle rotation speed to an intermediate rotation speed by outputting the rotation speed pre-adjustment signal, so as to achieve the pre-acceleration of the engine.
And S130, the engine controller responds to the rotating speed preset signal to increase the rotating speed of the vehicle to a preset rotating speed.
After receiving the rotating speed presetting signal, the engine controller raises the rotating speed of the engine to a preset rotating speed on the basis of the current idle rotating speed, and the engine is subjected to speed presetting in the process that the whole vehicle controller waits for load adjustment. The engine controller further increases the output rotation speed of the engine to the maximum rotation speed on the basis of the preset rotation speed. Obviously, by pre-accelerating the engine, the accelerating time required for accelerating from the preset rotating speed to the maximum rotating speed is inevitably shorter than the accelerating time required for directly accelerating from the idle rotating speed to the maximum rotating speed, so that compared with the prior art, the accelerating control method can accelerate the engine to the rotating speed required by the whole engine within the same unit time, shorten the time for accelerating the engine to the maximum rotating speed, improve the accelerating efficiency of the vehicle, and enable the whole engine to obtain better use performance.
Meanwhile, in the prior art, the rotating speed of the engine is determined by an accelerator pedal signal, and when the load is adjusted, if the accelerator pedal is not stepped on, the rotating speed of the engine cannot be increased, but can be decreased along with the increase of the load, so that when a vehicle driver steps on the accelerator pedal, the rotating speed of the engine can be increased from a lower rotating speed, and the rotating speed adjusting time of the engine is obviously further increased. In the embodiment, the rotating speed of the engine is pre-increased through the vehicle control unit, so that the increased load can be matched with the increased rotating speed, the rotating speed reduction can not occur, and the rotating speed increasing time of the engine is further shortened.
Illustratively, fig. 2 is a graph comparing acceleration times provided by the embodiment of the present invention. The first curve in the figure is an acceleration response curve under the acceleration control method using the embodiment of the invention, and the second curve is an accelerator response curve of the engine under the existing acceleration control method. The first curve shows that when the idling speed is 750rpm, the engine is pre-accelerated to raise the speed of the engine to 1000rpm in advance, and further when the accelerator pedal is stepped on, the engine speed is raised from 1000rpm to the highest speed, and the time spent on raising the speed of the engine to the highest speed is t 2; the second curve shows that when the accelerator pedal is stepped on, the engine speed is directly increased from the idle speed to the maximum speed, and the elapsed time is t 1. Obviously, the time for accelerating to the maximum rotation speed is shortened by t1-t2 in the first curve compared with the second curve, and therefore the acceleration efficiency of the engine is improved by pre-adjusting the rotation speed of the engine.
In the present embodiment, when the engine controller performs the pre-speed-up of the engine, the speed-up time required for the engine speed to be increased from the idle speed to the preset speed is determined by the engine characteristics. And the preset rotating speed is determined by the performance of the whole machine.
Optionally, the corresponding relationship between the engine load condition and the preset rotation speed may be preconfigured in the vehicle controller, that is, different grades are divided for the load condition, and a preset rotation speed value is matched for each grade, so that the vehicle controller may determine the preset rotation speed value corresponding to the current load condition based on the mapping relationship.
The principle of the vehicle acceleration control method is as follows: the vehicle controller of the vehicle determines that the vehicle needs to be accelerated after receiving a preset type load adjusting signal of the vehicle, sends a rotating speed presetting signal to the engine controller at the moment, and the engine controller carries out pre-acceleration on the engine based on the rotating speed presetting signal, so that the acceleration response time of the vehicle is shortened, and the acceleration efficiency of the vehicle is improved.
According to the vehicle acceleration control method provided by the embodiment of the invention, when the vehicle is in an idling state, if the vehicle controller of the vehicle receives a preset type of load adjustment signal, the vehicle controller determines that the vehicle needs to accelerate, at the moment, the vehicle controller sends a rotating speed pre-adjustment signal to the engine controller, the engine controller pre-adjusts the output rotating speed of the engine, specifically, the idling rotating speed is increased to the preset rotating speed, and then the idling rotating speed is increased to the highest rotating speed on the basis of the preset rotating speed. In the acceleration control method in the embodiment, the vehicle control unit outputs the rotating speed preset signal after receiving the load adjustment signal of the preset type, and controls the engine controller to pre-raise the rotating speed of the engine, so that the engine is controlled to act within the time of waiting for the load adjustment, thereby shortening the rotating speed adjustment time of the engine and improving the acceleration efficiency of the engine. Meanwhile, in the embodiment, the rotating speed of the engine is pre-increased in the process of waiting for load adjustment, which is equivalent to increasing the output of the engine in advance, so that the condition that the rotating speed of the engine is reduced due to load increase and the condition that the engine is shut down possibly can be avoided in the process of load adjustment, and the acceleration efficiency and the use experience of the vehicle are further improved.
Optionally, on the basis of the above technical solution, after the engine controller responds to the rotation speed preset signal to increase the rotation speed of the vehicle to the preset rotation speed, the acceleration control method further includes:
the engine controller raises the rotation speed of the vehicle to a target rotation speed in response to a stroke signal of an accelerator pedal.
The different degrees of stepping of the accelerator pedal output different travel signals, which reflect the rotational speed demand of the vehicle driver for the vehicle. The engine controller raises the engine speed to a target speed according to the stroke signal of the accelerator pedal.
Optionally, fig. 3 is a flowchart of another vehicle acceleration control method according to an embodiment of the present invention. The present embodiment is optimized based on the above embodiments, and referring to fig. 3, the acceleration control method specifically includes the following steps:
s310, when the vehicle is in an idling state, the vehicle controller detects whether a preset type of reversing signal output by the speed change control handle or a pressure adjusting signal output by the pilot control handle is received.
If the vehicle control unit receives a preset type of reversing signal output by the speed change control handle or a pressure adjusting signal output by the pilot control handle, executing step S320; otherwise, if the vehicle control unit does not receive the preset type of reversing signal output by the shift control handle or the pressure adjusting signal output by the pilot control handle, step S340 is executed.
When the vehicle is in an idling state, if the speed change control handle has a reversing signal output, which indicates that the load of the vehicle is increased, the vehicle needs to increase the output rotating speed to match the current load.
Optionally, the preset type of reversing signal is a reversing signal for changing the vehicle from neutral to non-neutral. It is apparent that the load on the engine starts to increase when the vehicle is switched from neutral to a non-neutral signal.
Or if the pilot control handle has a pressure adjusting signal output when the vehicle is a heavy-duty vehicle, the load of the heavy-duty vehicle is increased, and therefore the rotating speed needs to be increased to match the current pressure demand. For example, when the excavator's electrically proportional pilot handle outputs an arm dig signal, the excavator's load increases, at which time the engine needs to increase in speed to match the current load demand.
The pilot operating handle in this embodiment is used to control a hydraulic distribution valve of the vehicle. It may be liquid-controlled, electrically-controlled, etc. For example, in one particular embodiment, the pilot operating handle is an electrically proportional pilot operating handle, i.e., by electrically proportional controlling a hydraulic distribution valve. Of course, the present embodiment is not limited to the form in which the pilot operating handle is presented.
S320, if the vehicle control unit receives a preset type of reversing signal, the vehicle control unit outputs a first rotating speed pre-adjusting signal to the engine controller; or if the vehicle control unit receives the pressure adjusting signal, the vehicle control unit outputs a second rotating speed pre-adjusting signal to the engine controller.
As analyzed above, a preset type of reversing signal output by the shift operating lever (e.g., the shift operating lever changing from N-range to F-range or R-range) indicates an increase in the load on the vehicle and a need for an increase in the output speed of the vehicle. At the moment, the vehicle control unit outputs a first rotating speed pre-adjusting signal to instruct the engine controller to pre-adjust the rotating speed of the engine.
Similarly, the pressure adjustment signal output by the pilot joystick (e.g., a 50% change in the electrical proportional PWM signal of the pilot joystick) indicates an increase in the load on the vehicle, and the vehicle's engine requires an increased speed output to match the load demand, at which time the vehicle control unit outputs a second speed preset signal to instruct the engine controller to advance the engine speed.
And S330, the engine controller responds to the first rotating speed preset signal or the second rotating speed preset signal to increase the rotating speed of the vehicle to a preset rotating speed.
After receiving the first rotating speed preset signal or the second rotating speed preset signal, the engine controller controls the engine to increase the rotating speed to an intermediate rotating speed (namely the preset rotating speed) so as to pre-adjust the rotating speed of the engine in advance, and responds to the accelerator pedal signal to directly increase the rotating speed of the engine from the preset rotating speed to the target rotating speed, so that the time for increasing the rotating speed of the engine from the idle rotating speed to the target rotating speed is reduced, and the acceleration efficiency of the engine is improved.
And S340, if the vehicle controller does not receive the preset type of load adjustment signal, the vehicle controller does not output a control signal, and the engine controller controls the vehicle to keep the current rotating speed to operate.
The vehicle controller does not receive a reversing signal of the speed changing control handle or a pressure adjusting signal of the pilot handle, the vehicle is still in an idling state at present, and at the moment, the engine controller controls the engine to keep the current idling speed to continue running.
And S350, the engine controller responds to the stroke signal of the accelerator pedal to increase the rotating speed of the vehicle to the target rotating speed.
The accelerator pedal outputs different travel signals according to the degree of treading, and the travel signals reflect the rotating speed requirement of a vehicle driver for the vehicle. The engine controller raises the engine speed to a target speed according to the stroke signal of the accelerator pedal.
In the vehicle acceleration control method, when a speed change control handle or a pilot control handle of a vehicle has an action signal, a vehicle controller outputs a rotating speed preset signal to an engine controller, and the engine controller controls an engine to be increased from an idle rotating speed to a preset rotating speed to prepare for vehicle acceleration. After the operator steps on the accelerator pedal, the vehicle control unit further outputs a rotating speed control signal to the engine controller, and the engine controller controls the engine to increase the output rotating speed to a target rotating speed on the basis of the preset rotating speed so as to be matched with the rotating speed control signal. According to the embodiment, the rotating speed of the engine is adjusted in advance through the vehicle control unit, so that the rotating speed response time of the engine is shortened, and the acceleration efficiency of the engine is improved. Simultaneously, compare in prior art, because carried out the pre-adjustment to engine speed in this embodiment to operating personnel is before trampling accelerator pedal, and the rotational speed of engine can not reduce because of the load increases, therefore has further promoted the acceleration performance of whole car and has used the experience sense with whole car.
Optionally, fig. 4 is a flowchart of another vehicle acceleration control method according to an embodiment of the present invention. On the basis of the above embodiment, the acceleration control method specifically includes the steps of:
and S410, starting.
And S420, judging whether a reversing signal that the speed changing control handle is changed from the neutral gear to the non-neutral gear or an electric proportional pilot handle action signal is received by the vehicle control unit.
If the reversing signal is received or the action signal of the electrical proportion pilot handle is received, executing a step S430; otherwise, step S450 is performed.
S430, the vehicle controller sends an ISC function activation signal to an ECU (Electronic Control Unit, i.e. the engine controller in this embodiment).
And S440, increasing the engine speed to a preset speed by the ECU.
After the ECU increases the engine speed to the preset speed, step S460 is performed.
S450, the ECU keeps the current rotating speed of the engine.
And S460, ending.
In the embodiment, when the vehicle control unit receives a reversing signal that the speed change control handle is changed from the neutral gear to the non-neutral gear or receives an action signal of the electric proportional pilot handle, the vehicle control unit sends an engine rotating speed response signal to the ECU, and the ECU performs pre-adjustment on the rotating speed of the engine, so that the acceleration response time of the engine is shortened, and the acceleration efficiency of the engine is improved.
Optionally, an embodiment of the present invention further provides a vehicle acceleration control system, fig. 5 is a structural block diagram of the vehicle acceleration control system provided in the embodiment of the present invention, and referring to fig. 5, the vehicle includes a shift operating handle 20 and a pilot operating handle 10; the vehicle acceleration control system 50 includes at least a vehicle controller 510 and an engine controller 520; wherein the content of the first and second substances,
the vehicle control unit 510 is configured to: when the vehicle is in an idle state, detecting whether a preset type of load adjustment signal is received; if a preset type of load adjustment signal is received, a rotational speed preset signal is output to the engine controller 520; wherein the preset type of load adjustment signal is a non-accelerator pedal signal;
the engine controller 520 is configured to: and raising the rotating speed of the vehicle to a preset rotating speed in response to the rotating speed presetting signal.
Optionally, on the basis of the foregoing technical solution, the vehicle control unit 510 is specifically configured to: detecting whether a preset type of reversing signal output by the shift operating handle 20 is received; and, if a preset type of commutation signal is received, outputting a first speed preset signal to the engine controller 520.
Optionally, on the basis of the above technical solution, the preset type of the reversing signal is a reversing signal for changing the vehicle from neutral to non-neutral.
Optionally, on the basis of the foregoing technical solution, the vehicle control unit 510 is further specifically configured to: whether a pressure adjustment signal output by the pilot operating handle 10 is received; and outputting a second rotational speed preset signal to the engine controller 520 if the pressure adjusting signal is received.
Optionally, on the basis of the above technical solution, the preset type of load adjustment signal is a preset type of commutation signal output by the shift operating handle 20 and/or a preset type of load control signal output by the pilot operating handle 10.
Optionally, on the basis of the foregoing technical solution, the vehicle control unit 510 is further specifically configured to:
if the preset type of load adjustment signal is not received, the control signal is not output;
accordingly, engine controller 520 is also configured to: and controlling the vehicle to keep running at the current rotating speed.
Optionally, on the basis of the above technical solution, the acceleration control system further includes an accelerator pedal;
vehicle controller 510 is also specifically configured to: outputs a speed control signal to the engine controller 520 in response to a stroke signal of the accelerator pedal;
accordingly, engine controller 520 is also configured to: the rotational speed of the vehicle is raised to a target rotational speed in response to the rotational speed control signal.
Optionally, on the basis of the above technical solution, the preset rotation speed is determined by the engine controller 520 in the process of determining the target rotation speed.
The vehicle acceleration control system provided by the embodiment has the beneficial effects of any vehicle acceleration control method embodiment.
Optionally, the embodiment of the present invention further provides a vehicle including the vehicle acceleration control system provided in any embodiment of the present invention. Therefore, the present embodiment also has the advantageous effects described in any of the above embodiments.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A vehicle acceleration control method is applied to a vehicle acceleration control system, the acceleration control system comprises a vehicle controller and an engine controller connected with the vehicle controller, and the method is characterized by comprising the following steps:
when the vehicle is in an idling state, the vehicle controller detects whether a preset type of load adjustment signal is received;
if the vehicle control unit receives the preset type of load adjusting signal, the vehicle control unit outputs a rotating speed pre-adjusting signal to the engine controller;
and the engine controller responds to the rotating speed presetting signal to increase the rotating speed of the vehicle to a preset rotating speed.
2. The vehicle acceleration control method according to claim 1, wherein the vehicle includes a shift lever, and the vehicle control unit detects whether a preset type of load adjustment signal is received, including:
the vehicle control unit detects whether a preset type of reversing signal output by the speed change control handle is received or not;
correspondingly, if the vehicle control unit receives the preset type of load adjustment signal, the vehicle control unit outputs a rotation speed pre-adjustment signal to the engine controller, including:
and if the vehicle control unit receives the preset type of reversing signal, the vehicle control unit outputs a first rotating speed pre-adjusting signal to the engine controller.
3. The vehicle acceleration control method according to claim 2, characterized in that the preset type of the reversing signal is a reversing signal in which the vehicle changes from neutral to non-neutral.
4. The vehicle acceleration control method according to claim 1, wherein the vehicle includes a pilot handle, and the vehicle controller detects whether a preset type of load adjustment signal is received, including:
whether the vehicle control unit receives a pressure adjusting signal output by the pilot control handle or not;
correspondingly, if the vehicle control unit receives the preset type of load adjustment signal, the vehicle control unit outputs a rotation speed pre-adjustment signal to the engine controller, including:
and if the vehicle control unit receives the pressure adjusting signal, the vehicle control unit outputs a second rotating speed pre-adjusting signal to the engine controller.
5. The vehicle acceleration control method according to any one of claims 1 to 4, characterized in that, after the vehicle control unit detects whether a preset type of load adjustment signal is received, the method further includes:
if the vehicle control unit does not receive the preset type of load adjustment signal, the vehicle control unit does not output a control signal, and the engine controller controls the vehicle to keep running at the current rotating speed.
6. The vehicle acceleration control method according to any one of claims 1 to 4, characterized in that the acceleration control system further includes an accelerator pedal;
after the engine controller raises the rotation speed of the vehicle to a preset rotation speed in response to the rotation speed presetting signal, the method further comprises the following steps:
the engine controller responds to the travel signal of the accelerator pedal to increase the rotating speed of the vehicle to a target rotating speed.
7. The vehicle acceleration control method according to claim 6, characterized in that the preset rotation speed is determined by the engine controller in the process of determining the target rotation speed.
8. A vehicle acceleration control system is characterized by comprising a vehicle controller and an engine controller;
the vehicle control unit is used for: when the vehicle is in an idle state, detecting whether a preset type of load adjustment signal is received; if the preset type of load adjusting signal is received, outputting a rotating speed presetting signal to the engine controller; wherein the preset type of load adjustment signal is a non-accelerator pedal signal;
the engine controller is configured to: and responding to the rotating speed presetting signal to increase the rotating speed of the vehicle to a preset rotating speed.
9. The vehicle acceleration control system of claim 8, characterized in that the vehicle includes a shift operating handle and a pilot operating handle;
the preset type load adjusting signal is a preset type reversing signal output by the variable speed control handle and/or a preset type load control signal output by the pilot control handle.
10. A vehicle characterized by comprising the vehicle acceleration control system according to claim 8 or 9.
CN202011118962.9A 2020-10-19 2020-10-19 Vehicle acceleration control method and system and vehicle Pending CN112208537A (en)

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