CN112550293B - Vehicle control method and device - Google Patents

Vehicle control method and device Download PDF

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Publication number
CN112550293B
CN112550293B CN202110222619.7A CN202110222619A CN112550293B CN 112550293 B CN112550293 B CN 112550293B CN 202110222619 A CN202110222619 A CN 202110222619A CN 112550293 B CN112550293 B CN 112550293B
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neutral mode
state
state change
time interval
moment
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CN112550293A (en
Inventor
刘强
王洪志
曹永�
郭太民
杨磊
吴玉德
宗伟
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Shengrui Transmission Co Ltd
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Shengrui Transmission Co Ltd
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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
    • B60W30/20—Reducing vibrations in the driveline
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention relates to the technical field of vehicle control, and provides a vehicle control method and device. The method comprises the following steps: monitoring the state of a neutral mode under the conditions that a vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which the clutch is controlled to be in a separated state through software; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; the state change of the neutral mode comprises: entering a neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if so, controlling the vehicle to forbid entering the neutral mode within a preset time length. By adopting the method, the problem of aggravation of the wear of the clutch can be reduced, and the service life of the clutch is prolonged.

Description

Vehicle control method and device
Technical Field
The invention relates to the technical field of vehicle control, in particular to a vehicle control method and device.
Background
With the progress of society and the popularization of vehicles, people prefer a vehicle equipped with an automatic transmission, which has low manual gear shifting frequency and good comfort, when purchasing the vehicle. In a vehicle equipped with a hydraulic automatic transmission, power is transmitted between an engine and the automatic transmission through a torque converter, and power transmission occurs when the automatic transmission is engaged in a drive gear. In real life, when a driver steps on a brake pedal to stop for waiting due to red light or congestion, the automatic transmission is still in a driving gear, the rotating speed of a pump wheel is the rotating speed of an engine, the rotating speed of a turbine is 0, the hydraulic torque converter has the maximum torque conversion capacity, the turbine load of the hydraulic torque converter is large in the state, and the fuel economy of the whole vehicle is poor.
At present, some companies propose a control method of a neutral mode, a vehicle does not need to return to neutral manually in the parking waiting process, and software can realize automatic control of separation of a driving gear clutch and change from driving gear to neutral; the software logic is more intelligent, the frequency of manually operating the gear shifting lever is reduced, and the fuel economy and the comfort of the whole vehicle are improved to a certain extent. Such control methods are also referred to as "neutral control", "automatic neutral", "idle neutral", and the like. However, the method does not consider the situation that the driver frequently releases and steps on the brake pedal intentionally or unintentionally after stopping, particularly the situation that the driver meets a large congestion following road. The gear mode can be switched back and forth between an entering state and a quitting state when a driver frequently looses or steps on a brake pedal, and the starting impact jitter can be caused by frequent jump of the turbine rotating speed in the process, so that the comfort of the whole vehicle is influenced; meanwhile, the driving clutch is frequently separated and combined for control, so that the abrasion of the driving clutch is aggravated, and the service life of the clutch is influenced.
In the prior art, only an automatic transmission gear shifting control strategy is adopted, but a good solution is not provided for the problems of frequent entering and exiting of a neutral mode.
Disclosure of Invention
In order to solve the technical problems described above or at least partially solve the technical problems, the present application provides a vehicle control method, apparatus, computer device, and computer-readable storage medium.
In a first aspect, the present application provides a vehicle control method comprising:
monitoring the state of a neutral mode under the conditions that a vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met;
if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time;
judging whether the time interval is smaller than a threshold time interval;
if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times;
and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length.
Optionally, if the time interval is greater than or equal to the threshold time interval, clearing the state change times.
Optionally, if the number of state changes is greater than the threshold number, the number of state changes is cleared.
Optionally, if the number of state changes is greater than the threshold number, the state flag bit of the neutral mode is set to an activation disabled state.
Optionally, after the preset time length, the status flag bit of the neutral mode is set to an inactive state.
Optionally, monitoring the state of the neutral mode includes: acquiring a status flag bit signal; if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status; and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
Optionally, the threshold time interval is greater than or equal to 1s and less than or equal to 3 s; the threshold number is greater than or equal to 4 and less than or equal to 8; the preset time length is greater than or equal to 10s and less than or equal to 60 s.
In a second aspect, the present application provides a vehicle control apparatus comprising:
the monitoring module is used for monitoring the state of the neutral mode under the conditions that the vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met;
the acquisition module is used for acquiring a time interval between a first moment and a second moment if the state of the neutral mode changes at the first moment; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time;
the processing module is used for judging whether the time interval is smaller than a threshold time interval or not; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times;
and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length.
Optionally, if the time interval is greater than or equal to the threshold time interval, clearing the state change times.
Optionally, if the number of state changes is greater than the threshold number, the number of state changes is cleared.
Optionally, if the number of state changes is greater than the threshold number, the state flag bit of the neutral mode is set to an activation disabled state.
Optionally, after the preset time length, the status flag bit of the neutral mode is set to an inactive state.
Optionally, monitoring the state of the neutral mode includes: acquiring a status flag bit signal; if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status; and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
Optionally, the threshold time interval is greater than or equal to 1s and less than or equal to 3 s; the threshold number is greater than or equal to 4 and less than or equal to 8; the preset time length is greater than or equal to 10s and less than or equal to 60 s.
In a third aspect, the present application provides a computer device comprising a memory storing a computer program and a processor implementing the steps of the method as provided in the first aspect of the application when the processor executes the computer program.
In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method as provided in the first aspect of the present application.
Compared with the prior art, the technical scheme provided by the application has the following advantages:
according to the vehicle control method, the state of a neutral mode is monitored under the conditions that a vehicle is started and parked and is in a driving gear; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length. When the state change times of the neutral mode are smaller than the threshold times, the state of the neutral mode is continuously monitored, and the vehicle can enter the neutral mode within the threshold times; when the state change times of the neutral mode is larger than the threshold times, the state flag bit of the neutral mode is set to be in an activation prohibition state, and the vehicle is prohibited from entering the neutral mode within a preset time length, so that the impact jitter of the whole vehicle caused by the rotating speed jump due to frequent entering and exiting of the neutral mode can be avoided; meanwhile, the problem of clutch abrasion aggravation caused by frequent separation and combination control of the driving clutch can be reduced, and the service life of the clutch is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic flow chart diagram illustrating steps of a vehicle control method according to one embodiment;
FIG. 2 is a timing diagram illustrating the status bit change of the neutral mode signal according to one embodiment;
FIG. 3 is a schematic configuration diagram of a vehicle control apparatus of a computer device in one embodiment;
FIG. 4 is a block diagram of a computer device in one embodiment.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, a solution of the present invention will be further described below. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein; it is to be understood that the embodiments described in this specification are only some embodiments of the invention, and not all embodiments.
In one embodiment, an embodiment of the invention provides a vehicle control method. As shown in fig. 1, the vehicle control method includes the steps of:
and S101, monitoring the state of the neutral mode when the vehicle is started and parked and is in the driving gear position.
And the neutral mode is a mode for controlling a clutch of the vehicle to be in a separation state through software when a preset condition is met.
As an optional implementation manner of the embodiment of the present invention, the monitoring the state of the neutral mode includes:
acquiring a status flag bit signal;
if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status;
and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
Specifically, the automobile does not need to return to the neutral gear manually in the parking waiting process, and the software can realize the automatic control of the separation of the driving gear clutch and change the driving gear into the neutral gear; before monitoring the status of the neutral mode, a neutral mode status flag signal is first obtained, which is a value that may be a logic "0" level signal or a logic "1" level signal. The neutral mode status flag signal is used as an input signal, the entry into the neutral mode status flag signal is prohibited as an output signal, and the output signal simultaneously counteracts the judgment of the neutral mode status flag.
If the state of the neutral mode is changed at the first time, the following step S102 is performed. Wherein the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode.
S102, acquiring a time interval between the first time and the second time.
And the second moment is the moment when the state of the neutral mode changes last time.
For example, as shown in fig. 2, the state of the neutral mode after the engine is started is changed at the first time t2, and the time interval Δ t = t 2-t 1 between the first time and the second time. The second time is time t1 at which the state of the neutral mode was changed last time. Similarly, the time interval may also be Δ t = t 3-t 2, Δ t = t 4-t 3, Δ t = t 5-t 4, and so on.
S103, judging whether the time interval is smaller than a threshold time interval.
Specifically, the software sets a time interval determination condition: whether the time interval delta t is smaller than the threshold time interval X seconds or not, wherein the suggested value range of X is as follows: x is more than or equal to 1 and less than or equal to 3.
In step S103, if the time interval is equal to or greater than the threshold time interval, the following step S104 is performed.
And S104, clearing the state change times.
Specifically, if the time interval is greater than or equal to the threshold time interval, it indicates that the condition for entering the neutral mode is not satisfied, the state change times need to be cleared, until the next time the preset condition is satisfied, the clutch of the vehicle is controlled to be in the mode of the disengaged state by software, and then the counting is performed again.
In the step S103, if the time interval is smaller than the threshold time interval, S105 to S107 are executed.
And S105, adding one to the state change times.
Wherein, the initial value of the state change times is assigned to 0. The counting of the number of state changes may be done using a counter.
And S106, judging whether the state change times are larger than threshold times.
Specifically, the threshold frequency is recorded as Y, and the suggested value range of Y is: y is more than or equal to 4 and less than or equal to 8.
If the number of state changes is greater than the threshold number, the following step S107 is performed.
And S107, controlling the vehicle to be prohibited from entering a neutral mode within a preset time length.
As an optional implementation manner of the embodiment of the present invention, after the preset time period, the status flag bit of the neutral mode is set to an inactive state.
Specifically, the neutral mode is prohibited to enter within the time length set by the software, after the time length set by the software is passed, the state flag bit of the neutral mode is set to be in an inactive state, and the vehicle can enter the neutral mode again.
As an optional implementation manner of the embodiment of the present invention, if the number of state changes is greater than the threshold number, the following step S104 is executed.
And S104, clearing the state change times.
Specifically, if the state change times is greater than the threshold times, it indicates that the threshold times has been reached, the neutral mode cannot be entered again, a loop of adding one to the state change times needs to exit, and the state change times is cleared.
As an optional implementation manner of the embodiment of the present invention, if the number of state changes is greater than the threshold number, the state flag bit of the neutral mode is set to an activation disabled state.
Specifically, if the number of state changes is greater than the threshold number, then the condition for activating the inhibit entry into neutral mode has been satisfied. The preset time length is recorded as Zs (seconds, time unit), and the suggested value range of Z is as follows: z is more than or equal to 10 and less than or equal to 60.
As an optional implementation manner of the embodiment of the present invention, monitoring the state of the neutral mode includes: acquiring a status flag bit signal; if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status; and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
Specifically, before monitoring the state of the neutral mode, a signal of a neutral mode state flag bit is acquired, and then different conditions of the change of the state of the neutral mode are judged according to the rising edge or the falling edge of the signal; the falling edge of the signal indicates the exit from neutral mode.
By applying the embodiment of the application, the state of the neutral mode is monitored under the conditions that the vehicle is started and parked and is in the driving gear; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length. When the state change times of the neutral mode are smaller than the threshold times, the state of the neutral mode is continuously monitored, and the vehicle can enter the neutral mode within the threshold times; when the state change times of the neutral mode is larger than the threshold times, the state flag bit of the neutral mode is set to be in an activation prohibition state, and the vehicle is prohibited from entering the neutral mode within a preset time length, so that the impact jitter of the whole vehicle caused by the rotating speed jump due to frequent entering and exiting of the neutral mode can be avoided; meanwhile, the problem of clutch abrasion aggravation caused by frequent separation and combination control of the driving clutch can be reduced, and the service life of the clutch is prolonged.
For example, as shown in fig. 2, the present embodiment uses the timing chart of the neutral mode signal status bit change process as an example to assist understanding of the neutral mode by using the turbine speed change. When the vehicle is stopped and waits, a neutral gear mode is activated, the rotating speed of a turbine is increased to an idle speed value from 0rpm (the rotating speed of a mechanical rotor), and the idle speed value is approximately equal to the rotating speed value of a pump wheel; when the neutral mode is exited, the turbine speed is reduced from the idle speed value to 0 rpm. The rotating speed of the pump wheel is the speed of the engine, the rotating speed of the turbine wheel is the speed of the input shaft of the gearbox, the speed of the pump wheel is larger than that of the turbine wheel, and the larger the rotating speed difference is, the larger the torque of the turbine shaft is. The turbine speed is related to the vehicle speed, and when the vehicle speed is higher, the turbine speed is higher. The software sets a threshold time interval =2s, a threshold number of times =6, and a preset time length =30 s.
Assuming that the driving range is engaged for parking at 1min (minute) after the engine is started, the neutral mode is activated at time t1, the neutral mode state flag is changed, and the time when the neutral mode state flag is changed is recorded as t 1.
At time t2, the neutral mode status flag changes, Δ t = t 2-t 1 is less than or equal to 2s, and the number of status changes is added by 1 and is recorded as 1. And (4) judging the numerical value of the state change times, wherein 1 is less than 6, and setting the neutral mode state flag bit to be in an exit state.
At time t3, the neutral mode is activated again, the status flag bit of the neutral mode changes, Δ t = t 3-t 2 is less than or equal to 2s, and the number of status changes is added by 1 and is recorded as 2. And (5) judging the numerical value of the state change times, wherein 2 is less than 6, and setting the neutral mode state flag bit as an entering state.
And at the time t4, entering a neutral mode exit, changing the status flag bit of the neutral mode, recording the change time t4, keeping the Δ t = t 4-t 3 less than or equal to 2s, adding 1 to the status change times, and recording as 3. And (4) judging the numerical value of the state change times, wherein 3 is less than 6, and setting the neutral mode state flag bit to be in an exit state.
And at the time t5, the neutral mode is activated for the third time, the status flag bit of the neutral mode is changed, Δ t = t 5-t 4 is less than or equal to 2s, and the number of the status changes is added by 1 and is recorded as 4. And (4) judging the numerical value of the state change times, wherein 4 is less than 6, and setting the neutral mode state flag bit as an entering state.
And at the time t6, the neutral mode is exited for the third time, the status flag bit of the neutral mode is changed, Δ t = t 6-t 5 is less than or equal to 2s, and the number of the status changes is added by 1 and is recorded as 5. And (5) judging the numerical value of the state change times, wherein 5 is less than 6, and setting the neutral mode state flag bit to be in an exit state.
And at the time t7, the neutral mode is activated for the fourth time, the status flag bit of the neutral mode is changed, Δ t = t 7-t 6 is less than or equal to 2s, and the number of the status changes is added by 1 and is recorded as 6. And (3) judging the numerical value of the state change times, wherein 6=6, setting the neutral mode state flag bit to be in an activation prohibition state, prohibiting entering the neutral mode because the state change times reach the upper limit of the set threshold times, returning the state flag of the neutral mode to the non-activation state, and resetting the state change times to 0.
After 30s, the status flag bit for prohibiting entry into the neutral mode is set to the inactive state.
At time t8, the neutral mode is activated for the fifth time, the neutral mode status flag changes, Δ t = t 8-t 7 > 2s, and the number of status changes is reset and is recorded as 0. And (4) judging the state change times, wherein 0 is less than 6, setting the neutral mode state flag bit to be in an activation forbidden state, forbidding to enter the neutral mode, setting the state flag of the neutral mode to be in an entering state, and resetting the state change times to be 0.
And at the time t9, the neutral mode is exited for the fifth time, the status flag bit of the neutral mode is changed, Δ t = t 9-t 8 is less than or equal to 2s, and the number of state changes is added by 1 and is recorded as 1. And (4) judging the numerical value of the state change times, wherein 1 is less than 6, and setting the neutral mode state flag bit to be in an exit state.
And at the time t10, the neutral mode is activated for the sixth time, the status flag bit of the neutral mode is changed, Δ t = t 10-t 9 is less than or equal to 2s, and the number of the status changes is added by 1 and is recorded as 2. And (4) judging the numerical value of the state change times, wherein 2 is less than 6, and setting the state flag of the neutral mode as an entering state.
And at the time t11, the neutral mode is exited for the sixth time, the status flag bit of the neutral mode is changed, Δ t = t 11-t 10 is less than or equal to 2s, and the number of state changes is added by 1 and is recorded as 3. And (4) judging the numerical value of the state change times, wherein 3 is less than 6, and setting the neutral mode state flag bit to be in an exit state.
At time t12, the neutral mode is activated for the seventh time, the neutral mode status flag changes, Δ t = t 12-t 11 > 2s, and the number of status changes is reset and is recorded as 0. And (4) judging the numerical value of the state change times, wherein 0 is less than 6, and setting the state flag which prohibits entering the neutral mode to be in an inactivated state. In the subsequent steps, under the condition that the preset conditions are met, the change of the neutral mode can be judged according to the conditions and is consistent with the steps, so that the repeated description is omitted.
In one embodiment, there is provided a vehicle control apparatus, as shown in fig. 3, the vehicle control apparatus 300 including:
the monitoring module 3010 is configured to monitor a state of the neutral mode when the vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met;
an obtaining module 3020, configured to obtain a time interval between a first time and a second time if a state of the neutral mode changes at the first time; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time;
a processing module 3030, configured to determine whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length.
Optionally, if the time interval is greater than or equal to the threshold time interval, clearing the state change times.
Optionally, if the number of state changes is greater than the threshold number, the number of state changes is cleared.
Optionally, if the number of state changes is greater than the threshold number, the state flag bit of the neutral mode is set to an activation disabled state.
Optionally, after the preset time length, the status flag bit of the neutral mode is set to an inactive state.
Optionally, monitoring the state of the neutral mode includes: acquiring a status flag bit signal; if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status; and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
Optionally, the threshold time interval is greater than or equal to 1s and less than or equal to 3 s; the threshold number is greater than or equal to 4 and less than or equal to 8; the preset time length is greater than or equal to 10s and less than or equal to 60 s.
By applying the embodiment of the application, the state of the neutral mode is monitored under the conditions that the vehicle is started and parked and is in the driving gear; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length. When the state change times of the neutral mode are smaller than the threshold times, the state of the neutral mode is continuously monitored, and the vehicle can enter the neutral mode within the threshold times; when the state change times of the neutral mode is larger than the threshold times, the state flag bit of the neutral mode is set to be in an activation prohibition state, and the vehicle is prohibited from entering the neutral mode within a preset time length, so that the impact jitter of the whole vehicle caused by the rotating speed jump due to frequent entering and exiting of the neutral mode can be avoided; meanwhile, the problem of clutch abrasion aggravation caused by frequent separation and combination control of the driving clutch can be reduced, and the service life of the clutch is prolonged.
For specific limitations of the vehicle control device, reference may be made to the above limitations of the vehicle control method, which are not described herein again. The respective modules in the vehicle control apparatus described above may be realized in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in the processor in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, and the computer device may be a vehicle-mounted computer, and the internal structure diagram of the computer device may be as shown in fig. 4. The computer device comprises a processor, a memory, a communication interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The computer program is executed by a processor to implement a vehicle control method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 4 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, the vehicle control apparatus provided herein may be implemented in the form of a computer, and the computer program may be run on a computer device as shown in fig. 4. The memory of the computer device may store therein various program modules constituting the vehicle control apparatus of the computer device, such as the monitoring module, the acquisition module, and the processing module shown in fig. 3. The computer program constituted by the respective program modules causes the processor to execute the steps in the vehicle control method of the computer device of the respective embodiments of the present application described in the present specification.
In one embodiment, there is provided a computer device comprising a memory storing a computer program and a processor implementing the following steps when the processor executes the computer program: monitoring the state of a neutral mode under the conditions that a vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the time interval is greater than or equal to the threshold time interval, clearing the state change times.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the state change times are larger than the threshold value times, clearing the state change times.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the state change times are larger than the threshold value times, setting the state flag bit of the neutral mode to be in an activation prohibition state.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and after the preset time length, setting the status flag bit of the neutral mode to be in an inactive state.
In one embodiment, the processor, when executing the computer program, further performs the steps of: monitoring a state of the neutral mode, comprising: acquiring a status flag bit signal; if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status; and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
In one embodiment, the processor, when executing the computer program, further performs the steps of: the threshold time interval is greater than or equal to 1s and less than or equal to 3 s; the threshold number is greater than or equal to 4 and less than or equal to 8; the preset time length is greater than or equal to 10s and less than or equal to 60 s.
By applying the embodiment of the application, the state of the neutral mode is monitored under the conditions that the vehicle is started and parked and is in the driving gear; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length. When the state change times of the neutral mode are smaller than the threshold times, the state of the neutral mode is continuously monitored, and the vehicle can enter the neutral mode within the threshold times; when the state change times of the neutral mode is larger than the threshold times, the state flag bit of the neutral mode is set to be in an activation prohibition state, and the vehicle is prohibited from entering the neutral mode within a preset time length, so that the impact jitter of the whole vehicle caused by the rotating speed jump due to frequent entering and exiting of the neutral mode can be avoided; meanwhile, the problem of clutch abrasion aggravation caused by frequent separation and combination control of the driving clutch can be reduced, and the service life of the clutch is prolonged.
In one embodiment, a computer-readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, performs the steps of: monitoring the state of a neutral mode under the conditions that a vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the time interval is greater than or equal to the threshold time interval, clearing the state change times.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the state change times are larger than the threshold value times, clearing the state change times.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the state change times are larger than the threshold value times, setting the state flag bit of the neutral mode to be in an activation prohibition state.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and after the preset time length, setting the status flag bit of the neutral mode to be in an inactive state.
In one embodiment, the processor, when executing the computer program, further performs the steps of: monitoring a state of the neutral mode, comprising: acquiring a status flag bit signal; if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status; and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
In one embodiment, the processor, when executing the computer program, further performs the steps of: the threshold time interval is greater than or equal to 1s and less than or equal to 3 s; the threshold number is greater than or equal to 4 and less than or equal to 8; the preset time length is greater than or equal to 10s and less than or equal to 60 s.
By applying the embodiment of the application, the state of the neutral mode is monitored under the conditions that the vehicle is started and parked and is in the driving gear; if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; judging whether the time interval is smaller than a threshold time interval; if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times; and if the state change times are larger than the threshold value times, controlling the vehicle to forbid entering a neutral mode within a preset time length. When the state change times of the neutral mode are smaller than the threshold times, the state of the neutral mode is continuously monitored, and the vehicle can enter the neutral mode within the threshold times; when the state change times of the neutral mode is larger than the threshold times, the state flag bit of the neutral mode is set to be in an activation prohibition state, and the vehicle is prohibited from entering the neutral mode within a preset time length, so that the impact jitter of the whole vehicle caused by the rotating speed jump due to frequent entering and exiting of the neutral mode can be avoided; meanwhile, the problem of clutch abrasion aggravation caused by frequent separation and combination control of the driving clutch can be reduced, and the service life of the clutch is prolonged.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied in the medium.
The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer readable media include both permanent and non-permanent, removable and non-removable storage media. Storage media may implement information storage by any method or technology, and the information may be computer-readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transmyedia) such as modulated data signals and carrier waves.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A vehicle control method characterized by comprising:
monitoring the state of a neutral mode under the conditions that a vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met;
if the state of the neutral mode changes at a first moment, acquiring a time interval between the first moment and a second moment; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time;
judging whether the time interval is smaller than a threshold time interval;
if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times;
if the time interval is greater than or equal to the threshold time interval, clearing the state change times;
and if the state change times are larger than the threshold value times, clearing the state change times, and controlling the vehicle to forbid entering a neutral mode within a preset time length.
2. The control method according to claim 1, characterized in that the method further comprises:
and if the state change times are larger than the threshold value times, setting the state flag bit of the neutral mode to be in an activation prohibition state.
3. The control method according to claim 2, characterized in that the method further comprises:
and after the preset time length, setting the status flag bit of the neutral mode to be in an inactive state.
4. The control method of claim 1, wherein monitoring the status of the neutral mode comprises:
acquiring a status flag bit signal;
if the status flag bit is an activation signal, determining that the status of the neutral mode is an entering status;
and if the status flag bit is an inactive signal, determining that the status of the neutral mode is an exit status.
5. The control method according to claim 1, characterized in that the method further comprises:
the threshold time interval is greater than or equal to 1s and less than or equal to 3 s;
the threshold number is greater than or equal to 4 and less than or equal to 8;
the preset time length is greater than or equal to 10s and less than or equal to 60 s.
6. A vehicle control apparatus characterized by comprising:
the monitoring module is used for monitoring the state of the neutral mode under the conditions that the vehicle is started and parked and is in a driving gear; the neutral mode is a mode in which a clutch of the vehicle is controlled to be in a separation state through software when a preset condition is met;
the acquisition module is used for acquiring a time interval between a first moment and a second moment if the state of the neutral mode changes at the first moment; the state change of the neutral mode comprises: entering the neutral mode and exiting the neutral mode; the second moment is the moment when the state of the neutral mode changes last time;
the processing module is used for judging whether the time interval is smaller than a threshold time interval or not;
if so, adding one to the state change times, and judging whether the state change times are greater than the threshold times;
if the time interval is greater than or equal to the threshold time interval, clearing the state change times;
and if the state change times are larger than the threshold value times, clearing the state change times, and controlling the vehicle to forbid entering a neutral mode within a preset time length.
7. A computer arrangement comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, carries out the steps of the vehicle control method according to any one of claims 1 to 5.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the vehicle control method according to any one of claims 1 to 5.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101327791A (en) * 2007-06-11 2008-12-24 大同工业株式会社 Engine stall prevention system for industrial vehicles and method of controlling the same
CN102390376A (en) * 2011-10-11 2012-03-28 广州汽车集团股份有限公司 Intelligent starting and stopping system of engine and intelligent starting and stopping method for automobile
DE102014200087A1 (en) * 2014-01-08 2015-07-09 Robert Bosch Gmbh Method for operating a motor vehicle with manual transmission
CN105909395A (en) * 2015-02-20 2016-08-31 福特全球技术公司 A method of controlling the stopping and starting of an engine
CN106143491A (en) * 2015-04-03 2016-11-23 上海通用汽车有限公司 Auto control system in vehicles and method
CN106164848A (en) * 2014-04-11 2016-11-23 艾里逊变速箱公司 With automatic transmission with the use of automatic neutral and automatically gear answering system and method
CN107472249A (en) * 2016-06-08 2017-12-15 福特全球技术公司 Vehicle and startup/method of shutting down for vehicle motor
CN108501952A (en) * 2017-02-17 2018-09-07 福特全球技术公司 For changing the system and method for start and stop event

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101327791A (en) * 2007-06-11 2008-12-24 大同工业株式会社 Engine stall prevention system for industrial vehicles and method of controlling the same
CN102390376A (en) * 2011-10-11 2012-03-28 广州汽车集团股份有限公司 Intelligent starting and stopping system of engine and intelligent starting and stopping method for automobile
DE102014200087A1 (en) * 2014-01-08 2015-07-09 Robert Bosch Gmbh Method for operating a motor vehicle with manual transmission
CN106164848A (en) * 2014-04-11 2016-11-23 艾里逊变速箱公司 With automatic transmission with the use of automatic neutral and automatically gear answering system and method
CN105909395A (en) * 2015-02-20 2016-08-31 福特全球技术公司 A method of controlling the stopping and starting of an engine
CN106143491A (en) * 2015-04-03 2016-11-23 上海通用汽车有限公司 Auto control system in vehicles and method
CN107472249A (en) * 2016-06-08 2017-12-15 福特全球技术公司 Vehicle and startup/method of shutting down for vehicle motor
CN108501952A (en) * 2017-02-17 2018-09-07 福特全球技术公司 For changing the system and method for start and stop event

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