CN114620027A - Gear simulation method and device and vehicle - Google Patents

Gear simulation method and device and vehicle Download PDF

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Publication number
CN114620027A
CN114620027A CN202110267910.6A CN202110267910A CN114620027A CN 114620027 A CN114620027 A CN 114620027A CN 202110267910 A CN202110267910 A CN 202110267910A CN 114620027 A CN114620027 A CN 114620027A
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China
Prior art keywords
gear
vehicle
target
current
engine
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CN202110267910.6A
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Chinese (zh)
Inventor
刘志刚
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202110267910.6A priority Critical patent/CN114620027A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • B60W20/30Control strategies involving selection of transmission gear ratio
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • B60W20/20Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2520/00Input parameters relating to overall vehicle dynamics
    • B60W2520/10Longitudinal speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2540/00Input parameters relating to occupants
    • B60W2540/10Accelerator pedal position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2710/00Output or target parameters relating to a particular sub-units
    • B60W2710/06Combustion engines, Gas turbines
    • B60W2710/0644Engine speed

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The disclosure relates to a gear simulation method and device and a vehicle. The gear simulation method comprises the following steps: acquiring driving state parameters of a vehicle, wherein the driving state parameters comprise the current vehicle speed and the opening degree of an accelerator pedal; determining the current target gear of the vehicle according to the current vehicle speed and the opening degree of the accelerator pedal; and under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is a preset virtual gear, determining a target rotating speed corresponding to the virtual gear, and controlling an engine to adjust to the target rotating speed. Therefore, the virtual gear is arranged, the rotating speed of the engine is adjusted according to the virtual gear, the front and rear driving feeling is sharp, the driver can obtain the driving experience similar to that of a fuel vehicle, and the driving experience of the driver is improved.

Description

Gear simulation method and device and vehicle
Technical Field
The disclosure relates to the technical field of vehicles, in particular to a gear simulation method and device and a vehicle.
Background
The conventional hybrid transmission system is generally provided with a direct-drive mode in a high-speed section, namely, an engine is directly driven, and is provided with a series-drive mode in a low-speed section, namely, the engine is connected with a driving motor in series, a vehicle is driven by the motor, and the engine is only used for power generation.
When the motor is driven in series, the motor runs to generate power, the motor works in the optimal economic area, and the rotating speed of the motor is basically constant; when the vehicle accelerates to a high-speed section, the vehicle enters a direct drive mode, and compared with a series mode, the rotating speed of an engine is obviously improved; meanwhile, in the direct-drive mode, 2-gear drive is generally arranged in the prior art, and when gears are switched in the direct-drive mode, the change of the rotating speed of the engine is large.
Therefore, when the vehicle enters the direct drive mode from the series mode or the vehicle switches gears in the direct drive mode, the change of the rotating speed of the engine is large, so that the front and rear driving feeling is abrupt, and the driving experience feeling is poor.
Disclosure of Invention
The invention aims to provide a gear simulation method, a gear simulation device and a vehicle, so that a driver can easily adapt to the driving of a hybrid vehicle.
In order to achieve the above object, a first aspect of the present disclosure provides a gear simulation method, including:
acquiring driving state parameters of a vehicle, wherein the driving state parameters comprise the current vehicle speed and the opening degree of an accelerator pedal;
determining the current target gear of the vehicle according to the current vehicle speed and the opening degree of the accelerator pedal;
and under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is a preset virtual gear, determining a target rotating speed corresponding to the virtual gear, and controlling an engine to adjust to the target rotating speed.
Optionally, the driving state parameters further include a current driving mode of the vehicle, and the method further includes:
judging whether the current driving mode is a target driving mode;
and under the condition that the current driving mode is a target driving mode, executing the step of determining the current target gear of the vehicle according to the current vehicle speed and the opening degree of the accelerator pedal.
Optionally, the driving mode of the vehicle includes a series driving mode, and the preset virtual gear includes:
and the vehicle speed corresponding to the first virtual gear is less than or equal to the maximum vehicle speed corresponding to the series driving mode.
Optionally, when the first virtual gear is multiple, the target rotation speed corresponding to the first virtual gear increases as the first virtual gear increases.
Optionally, the method further comprises:
and controlling the vehicle to keep the series driving mode under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the first virtual gear.
Optionally, the driving mode of the vehicle includes a direct drive mode, the direct drive mode has at least two actual gears, and the virtual gear further includes:
and the second virtual gear is arranged between two adjacent actual gears, wherein the target rotating speed corresponding to the second virtual gear is between two adjacent engine rotating speeds corresponding to the actual gears.
Optionally, the method further comprises:
and adjusting the combustion supply parameter of the engine so that the load point of the engine is in an optimal range when the engine is adjusted to the target rotating speed.
Optionally, the driving mode of the vehicle comprises a series driving mode and a direct driving mode; the method also includes at least one of:
controlling a transmission of the vehicle to be switched to the target gear under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the actual gear of the vehicle;
and if the current driving mode of the vehicle is the series driving mode, controlling the vehicle to be switched to the direct driving mode under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the actual gear of the vehicle.
A second aspect of the present disclosure provides a gear simulation device, including:
the vehicle driving state control system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire driving state parameters of a vehicle, and the driving state parameters comprise the current vehicle speed and the opening degree of an accelerator pedal;
a gear determining module configured to determine a current target gear of the vehicle according to the current vehicle speed and the accelerator pedal opening;
and the rotating speed control module is configured to determine a target rotating speed corresponding to the virtual gear under the condition that the current gear of the vehicle is inconsistent with the target gear and the target gear is a preset virtual gear, and control the engine to adjust to the target rotating speed.
Optionally, the driving state parameters further include a current driving mode of the vehicle, and the apparatus further includes:
a driving mode determination module configured to determine whether the current driving mode is a target driving mode;
the gear determining module is further configured to determine a current target gear of the vehicle according to the current vehicle speed and the accelerator pedal opening degree under the condition that the current driving mode is a target driving mode.
Optionally, the apparatus further comprises:
a first gear control module configured to control the vehicle to maintain the series drive mode if a current gear of the vehicle is not consistent with the target gear and the target gear is the first virtual gear.
Optionally, the apparatus further comprises:
an engine optimization module configured to adjust a combustion supply parameter of the engine to bring a load point of the engine within an optimal interval if the engine is adjusted to the target speed.
Optionally, the driving mode of the vehicle comprises a series driving mode and a direct driving mode; the device further comprises:
a gear shifting module configured to control a transmission of the vehicle to shift to the target gear if a current gear of the vehicle is not consistent with the target gear and the target gear is an actual gear of the vehicle; and/or the presence of a gas in the gas,
and the second gear control module is configured to control the vehicle to be switched to the direct drive mode under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the actual gear of the vehicle if the current drive mode of the vehicle is the series drive mode.
A third aspect of the present disclosure provides a gear simulation apparatus, including:
a memory having a computer program stored thereon;
a processor, which computer program, when executed by the processor, implements the method provided by the first aspect of the disclosure.
A fourth aspect of the present disclosure provides a vehicle including the gear simulation device provided in the second aspect of the present disclosure, or the gear simulation device provided in the third aspect of the present disclosure.
According to the scheme, the virtual gear is arranged, the rotating speed of the engine is adjusted according to the virtual gear, the front and rear driving feeling is reduced, the driver can obtain driving experience similar to that of a fuel vehicle, and the driving experience of the driver is improved.
Specifically, a current target gear of the vehicle is determined according to a current vehicle speed and a pedal accelerator opening, a target rotating speed corresponding to a virtual gear is determined under the condition that the current gear is inconsistent with the target gear and the target gear is the virtual gear, and the engine is controlled to be adjusted to the target rotating speed so as to simulate the gear. Therefore, the engine can run according to the corresponding relation between the speed close to the fuel vehicle and the rotating speed of the engine, the rotating speed of the engine can be changed stably by setting the virtual gear, the abrupt front and back driving feeling is reduced, and the driver can obtain the driving experience similar to that of the fuel vehicle.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of a gear simulation method provided by an exemplary embodiment of the present disclosure;
FIG. 2 is a flow chart of a gear simulation method provided by another exemplary embodiment of the present disclosure;
FIG. 3 is a schematic engine speed adjustment diagram illustrating a gear simulation method according to an exemplary embodiment of the present disclosure;
FIG. 4 is a flow chart of a gear simulation method provided by yet another exemplary embodiment of the present disclosure;
FIG. 5 is a flow chart of a gear simulation method provided by yet another exemplary embodiment of the present disclosure;
fig. 6 is a block diagram of a gear simulation apparatus according to an exemplary embodiment of the present disclosure.
Description of the reference numerals
1 a first virtual gear, 2 a second virtual gear, 3 a third virtual gear and 4 an actual gear.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
FIG. 1 is a flow chart of a gear simulation method provided by an exemplary embodiment of the present disclosure. Referring to fig. 1, a first aspect of the present disclosure provides a gear simulation method, which may include:
and step S11, acquiring driving state parameters of the vehicle, wherein the driving state parameters comprise the current vehicle speed and the opening degree of an accelerator pedal.
For example, a speed sensor may be provided on the vehicle, and the current speed of the vehicle may be obtained by the speed sensor.
Alternatively, the current vehicle speed of the vehicle can also be calculated through the positioning data of the vehicle.
Alternatively, it is also possible to obtain the positioning data of the vehicle through a mobile terminal on the vehicle and measure the current vehicle speed of the vehicle according to the positioning data.
Of course, the current vehicle speed may also be determined by the mobile terminal, and a signal containing the current vehicle speed may be sent to the vehicle to obtain the current vehicle speed of the vehicle.
For example, an accelerator pedal sensor may be further provided on the vehicle, and the accelerator pedal opening may be obtained by the accelerator pedal sensor.
And step S12, determining the current target gear of the vehicle according to the current vehicle speed and the opening degree of the accelerator pedal.
For example, the target gear may be determined by referring to the corresponding relationship between the gear and the vehicle speed and the opening degree of the accelerator pedal in the fuel vehicle, so that the target gear is arranged close to the gear of the fuel vehicle, and the driving feeling similar to that of the fuel vehicle can be obtained.
Alternatively, the corresponding relation between the target gear and the current vehicle speed and the opening degree of the accelerator pedal can be corrected by referring to the gear setting of the fuel vehicle according to the preference of the user so as to meet the requirement of the user.
For example, when the driving style of the user is relatively stable, the set number of the target gears can be reduced; when a user is used to switch gears according to the preference in the driving process, the set number of target gears can be increased properly, and the gear shifting experience is enhanced.
And step S13, determining a target rotating speed corresponding to the virtual gear under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is a preset virtual gear, and controlling the engine to adjust to the target rotating speed.
And under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is a preset virtual gear, determining the target rotating speed corresponding to the virtual gear, and controlling the engine to adjust to the target rotating speed. Therefore, the gear corresponding to the fuel vehicle can be simulated, the engine can operate according to the corresponding relation between the speed close to the fuel vehicle and the rotating speed of the engine, the rotating speed of the engine can be stably changed by setting the virtual gear, the abrupt front and back driving feeling can be reduced, a driver can obtain the driving experience similar to that of the fuel vehicle, and the driving experience of the driver can be improved.
Meanwhile, misjudgment of the driver on the vehicle state can be reduced, and the driver can adapt to driving of the hybrid vehicle quickly.
For example, the rotational speed of the engine can be adjusted by means of an electric machine.
FIG. 2 is a flow chart of a gear simulation method provided by another exemplary embodiment of the present disclosure. Referring to fig. 2, the driving state parameters further include a current driving mode of the vehicle, and the method may further include:
step S14, after the driving state parameters of the vehicle are acquired, whether the current driving mode is the target driving mode or not is judged, and a first judgment result is generated;
if the first determination result is yes, that is, if the current driving mode is the target driving mode, step S12 is executed, that is, the current target gear of the vehicle is determined according to the current vehicle speed and the accelerator pedal opening.
Therefore, the virtual gear setting is only used in the specific driving mode, the virtual gear can be started according to the requirements of the user, the user requirements can be met, unnecessary oil consumption can be reduced, and the economical efficiency is improved.
For example, the driving mode of the vehicle may include a sport mode and an economy mode, and the target driving mode may be the sport mode.
Under the condition that the first judgment result is yes, the current driving mode is the motion mode, and a driver needs to provide strong power for the vehicle, so that the driving experience is improved. At the moment, the virtual gear is started, so that strong power is provided, and meanwhile, the sensory requirements of the driver can be met, so that the driving experience of the driver is further improved; and meanwhile, even if the driver has the driving habit of the fuel vehicle, the driver can also adapt to the operation of the vehicle quickly.
Under the condition that the first judgment result is negative, the current driving mode is an economy mode, at the moment, the virtual gear is not started, and the rotating speed of the engine can be controlled through an optimal oil consumption principle, so that the energy consumption of the vehicle is reduced, and the economy is improved.
For example, the driving mode of the vehicle may include a series driving mode, and the preset virtual gear may include:
and the vehicle speed corresponding to the first virtual gear is less than or equal to the maximum vehicle speed corresponding to the series driving mode.
In the series driving mode, the engine supplies power to the motor, and the vehicle is driven by the motor. Under the guidance of the principle of optimal oil consumption, the engine runs in a state of nearly constant rotating speed, so that power can be supplied to the motor, and unnecessary oil consumption of the engine can be reduced.
The vehicle speed corresponding to the first virtual gear is smaller than or equal to the maximum vehicle speed corresponding to the series driving mode, namely, the engine rotating speed of the fuel vehicle is simulated through the target rotating speed corresponding to the first virtual gear in the series driving mode. Like this, provide power for the vehicle through the motor, simulate the sense organ of burning oil vehicle through improving engine speed simultaneously and experience to realize the simulation of burning oil vehicle driving experience.
Meanwhile, due to the real-time assistance of the motor, the vehicle can easily obtain larger acceleration in the starting stage, so that the acceleration experience of the vehicle can be better than that of a fuel vehicle, and the requirement of a driver on the performance of the vehicle is met.
For example, when the first virtual gear is multiple, the target rotation speed corresponding to the first virtual gear increases as the first virtual gear increases.
In the scheme, a plurality of first virtual gears are set, and meanwhile the target rotating speed corresponding to the first virtual gears is increased along with the increase of the first virtual gears. In this way, in series drive mode, a gradient setting of the first virtual gear is achieved. In the vehicle acceleration process, a driver can obtain the experience of gear shifting through the improvement of the rotating speed of the engine, so that the driving experience of the driver is closer to that of a fuel vehicle.
Exemplarily, the driving mode of the vehicle includes a direct drive mode, the direct drive mode may have at least two actual gears, and the virtual gear may further include:
and the second virtual gear is arranged between the two adjacent actual gears, wherein the target rotating speed corresponding to the second virtual gear is between the rotating speeds of the engines corresponding to the two adjacent actual gears.
Under the direct-drive mode, the engine directly provides power, and the actual gear is switched through the gearbox.
In the scheme, a second virtual gear is arranged between two adjacent actual gears, and the target rotating speed of the second virtual gear is between the rotating speeds of the engines corresponding to the two adjacent actual gears. Therefore, the rotating speed difference of the engine between the adjacent gears is reduced, the abrupt feeling caused by large change of the rotating speed of the engine can be reduced, and the driving experience is improved.
Meanwhile, the problem that gears are too few due to vehicle type limitation can be solved, and the requirement of a user for driving in multiple gears is met. Therefore, the improved automobile has lower improvement cost and is convenient to rapidly popularize on mass-produced vehicles.
For example, the difference between the engine speeds corresponding to two adjacent actual gears is 1200r/min, and when the two actual gears are switched, the change of the engine speed difference is obvious, and a driver feels abrupt.
At the moment, a second virtual gear can be additionally arranged between the two actual gears, and the difference between the second virtual gear and the two adjacent actual gears can be 600 r/min. So, can reduce the perception that the driver changes the engine speed, keep off the position and switch more smoothly, promote driver's driving and experience.
For example, when the engine speeds of two adjacent actual gears are too different, or the user has a high demand for the number of gears, two or more second virtual gears may be set between the two adjacent actual gears. Therefore, the method can reduce the abrupt feeling caused by large change of the rotating speed of the engine in the gear switching process, and can meet the requirement of multi-gear driving of a driver.
It should also be noted that by setting the first virtual gear, when the vehicle is switched from the series drive mode to the direct drive mode, the change of the engine speed can be reduced, which facilitates smooth transition.
FIG. 3 is a schematic diagram illustrating engine speed adjustment of a gear simulation method according to an exemplary embodiment of the present disclosure.
Referring to fig. 3, in fig. 3, the horizontal axis represents the current vehicle speed of the vehicle, and the vertical axis represents the engine speed of the vehicle. Wherein the solid line in fig. 3 is the corresponding relationship between the engine speed and the vehicle speed of the vehicle in the economy mode, and the broken line in fig. 3 is the virtual gear.
Referring to fig. 3, when the driving mode of the vehicle is the economy mode, and when the vehicle starts, the battery directly supplies power to the motor when the amount of electricity in the battery is large, and the engine speed is 0 at this time. Until the amount of electricity in the battery is below a threshold, the engine is started and powers the motor.
When the speed of the vehicle is larger than alpha Km/h, the vehicle enters a high-speed section from a low-speed section, and the driving mode is switched from a series driving mode to a direct driving mode.
Illustratively, α may be 40.
In the direct drive mode, the engine directly provides power for the vehicle, and in the direct drive mode, two actual gears 4 can be provided, and the engine speed corresponding to the actual gears 4 is increased along with the increase of the gears.
Therefore, in the economic mode, when the vehicle runs at a low-speed section, the power is provided by the motor, so that the oil consumption of the vehicle is reduced, and the economic efficiency is improved; meanwhile, after the vehicle enters the height section, the engine provides power for the vehicle, so that the power of the vehicle meets the driving requirement.
The virtual gear may be enabled when the driving mode of the vehicle is a sport mode.
For example, the virtual gears may include a first virtual gear 1, a second virtual gear 2, and a third virtual gear 3.
The definitions of the first virtual gear 1 and the second virtual gear 2 are not described in detail.
The target speed for the third virtual gear 3 is higher than the engine speed for the highest actual gear 4.
Referring to fig. 3, a dotted line in an interval where the current vehicle speed is 0- α Km/h is a target rotation speed corresponding to the first virtual gear 1. In the interval that the current vehicle speed is greater than alpha Km/h, the dotted line corresponding to the larger vehicle speed is the target rotating speed corresponding to the third virtual gear 3, and the dotted line corresponding to the smaller vehicle speed is the target rotating speed corresponding to the second virtual gear 2.
In this example, the first virtual gear 1 may be set to three, and the target rotation speeds corresponding to the three first virtual gears 1 gradually increase as the first virtual gear 1 increases.
When the vehicle is started, the engine is synchronously started, and the initial rotating speed of the engine is 1000 r/min. Before the current speed reaches alpha Km/h (namely when the vehicle is positioned in a low-speed section), the target gear is gradually switched among the three first virtual gears 1 along with the increase of the current speed until the speed is greater than alpha Km/h (namely the vehicle enters a high-speed section), and at the moment, the driving mode of the vehicle is switched to a direct-drive mode.
When the direct-drive mode is just switched to, the vehicle is switched to the smaller actual gear 4, when the current vehicle speed continues to increase, the target gear is switched to the second virtual gear 2, the engine speed is adjusted to the target speed corresponding to the second virtual gear 2, and the gearbox does not perform gear shifting operation.
In case the current vehicle speed is further increased, the target gear is switched from the second virtual gear 2 to the larger actual gear 4 and the gearbox performs a gear shift operation to switch to the larger actual gear 4.
When the vehicle speed is further increased, the target gear is switched to the third virtual gear 3, at the moment, the gear shifting operation is not carried out on the gearbox, only the rotating speed of the engine is adjusted, gear shifting is simulated, and the multi-gear driving requirement of a driver is met.
FIG. 4 is a flow chart of a gear simulation method provided by yet another exemplary embodiment of the present disclosure.
Referring to FIG. 4, the drive modes of the vehicle may include, for example, a series drive mode and a direct drive mode; the method can comprise the following steps:
and step S15, judging whether the current gear is the same as the target gear, and generating a second judgment result.
In a case where the second determination result is yes, the contents of step S11 through step S12 are re-executed.
If the second determination result is no, step S16 is executed to determine whether the target shift position is the virtual shift position, and a third determination result is generated.
If the third determination result is yes, step S13 is executed.
In the case that the third determination result is no, and the target gear is the actual gear of the vehicle, step S17 is executed to control the transmission of the vehicle to switch to the target gear to complete the actual gear shifting operation of the vehicle.
Therefore, the rotating speed of the engine can be adjusted under the condition that the target gear is the virtual gear, and gear shifting experience is simulated; and the gear shifting operation can be executed when the vehicle needs to actually shift gears, so that the driving requirement of the vehicle is met.
FIG. 5 is a flow chart of a gear simulation method provided by yet another exemplary embodiment of the present disclosure.
Referring to fig. 5, the method may include:
if the current gear is not consistent with the target gear, step S161 is executed to determine whether the target gear is the first virtual gear, and a fourth determination result is generated.
If the fourth determination result is yes, step S18 is executed to determine whether the current driving mode is the series driving mode, and a fifth determination result is generated.
If the fifth judgment result is yes, executing step S131, controlling the vehicle to maintain the series driving mode, determining a target rotation speed corresponding to the first virtual gear, and controlling the engine to adjust to the target rotation speed;
if the fifth judgment result is negative, the current driving mode of the vehicle is the direct drive mode, step S132 is executed, the vehicle is controlled to switch to the series driving mode, the target rotation speed corresponding to the first virtual gear is determined, and the engine is controlled to adjust to the target rotation speed, so as to adapt to a scene that the vehicle decelerates from a high speed section to a low speed section.
If the fourth determination result is negative, executing step S162, determining whether the target gear is the second virtual gear, and generating a sixth determination result;
and if the sixth judgment result is yes, the target gear is the second virtual gear, and the second virtual gear is arranged between two adjacent actual gears, so that the vehicle is in the direct-drive mode, and the driving mode of the vehicle does not need to be judged and adjusted.
Therefore, step S133 is executed to control the vehicle to maintain the direct drive mode, determine the target rotation speed corresponding to the second virtual gear, and control the engine to adjust to the target rotation speed.
And if the sixth judgment result is negative, the target gear is the actual gear at the moment. Step S163 is executed to determine whether the current driving mode is the series driving mode, and a seventh determination result is generated.
If the seventh determination result is yes, the driving mode of the vehicle is the series driving mode at this time, step S171 is executed to control the vehicle to switch to the direct drive mode, and control the transmission of the vehicle to switch to the target gear, so as to adapt to a scenario that the vehicle accelerates from a low speed range to a high speed range.
If the seventh determination result is negative, the driving mode of the vehicle is the direct drive mode, and step S172 is executed to control the vehicle to maintain the direct drive mode and control the transmission of the vehicle to switch to the target gear.
It is to be understood that, referring to fig. 3, in the case where the third virtual gear is set, a step of determining whether the target gear is the third virtual gear may be added between step S161 and step S162 in fig. 5, or between step S162 and step S163 in fig. 5. If the judgment result is yes, the engine is controlled to adjust to the target rotating speed corresponding to the third virtual gear, and if the judgment result is no, the next step is continuously executed.
It should be noted that, although step S161 is executed before step S162 in fig. 5, it is understood that step S162 may also be executed before step S161, and the technical effect of the above technical solution can also be achieved, and will not be described herein again.
Exemplarily, referring to fig. 5, the method may further include: in step S19, after the engine is controlled to be adjusted to the target rotation speed, the combustion supply parameter of the engine is adjusted so that the load point of the engine is in the optimum range.
When the engine is a gasoline engine, the combustion supply parameter of the engine is adjusted, and the throttle valve of the engine can be adjusted.
When the engine is a diesel engine, adjusting the combustion supply parameters of the engine can be adjusting the fuel injection quantity of the engine.
Therefore, by adjusting the load point of the engine to be in the optimal interval, the efficiency can be improved, and unnecessary energy consumption can be reduced.
Fig. 6 is a block diagram of a gear simulation apparatus according to an exemplary embodiment of the present disclosure. Referring to fig. 6, a second aspect of the present disclosure provides a gear simulation apparatus 600, including:
the system comprises an acquisition module 601, a control module and a display module, wherein the acquisition module is configured to acquire driving state parameters of a vehicle, and the driving state parameters comprise a current vehicle speed and an accelerator pedal opening;
a gear determination module 602 configured to determine a current target gear of the vehicle according to a current vehicle speed and an accelerator pedal opening;
and the rotating speed control module 603 is configured to determine a target rotating speed corresponding to the virtual gear and control the engine to adjust to the target rotating speed when the current gear of the vehicle is not consistent with the target gear and the target gear is a preset virtual gear.
Therefore, the virtual gear is arranged, the rotating speed of the engine is adjusted according to the virtual gear, the front and rear driving feeling is sharp, the driver obtains driving experience similar to that of a fuel vehicle, and the driving experience of the driver is improved.
Optionally, the driving state parameters further include a current driving mode of the vehicle, and the apparatus may further include:
a driving mode determination module configured to determine whether a current driving mode is a target driving mode;
the gear determining module is further configured to determine a current target gear of the vehicle according to the current vehicle speed and the accelerator pedal opening degree under the condition that the current driving mode is the target driving mode.
Optionally, the apparatus may further comprise:
the first gear control module is configured to control the vehicle to maintain the series driving mode when the current gear of the vehicle is not consistent with the target gear and the target gear is the first virtual gear.
Optionally, the apparatus may further comprise:
and the engine optimization module is configured to adjust the combustion supply parameters of the engine under the condition that the engine is adjusted to the target rotating speed so as to enable the load point of the engine to be in the optimal interval.
Optionally, the driving mode of the vehicle comprises a series driving mode and a direct driving mode; the apparatus may further comprise:
the gear switching module is configured to control a transmission of the vehicle to switch to a target gear under the condition that a current gear of the vehicle is inconsistent with the target gear and the target gear is an actual gear of the vehicle; and/or the presence of a gas in the gas,
and the second gear control module is configured to control the vehicle to be switched to the direct drive mode under the conditions that the current gear of the vehicle is not consistent with the target gear and the target gear is the actual gear of the vehicle if the current drive mode of the vehicle is the series drive mode.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
A third aspect of the present disclosure provides a gear simulation apparatus, including:
a memory having a computer program stored thereon;
a processor, the computer program when executed by the processor implementing the method provided by the first aspect of the disclosure.
A fourth aspect of the present disclosure provides a vehicle including the gear simulation device provided in the second aspect of the present disclosure, or the gear simulation device provided in the third aspect of the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A gear simulation method, comprising:
acquiring driving state parameters of a vehicle, wherein the driving state parameters comprise the current vehicle speed and the opening degree of an accelerator pedal;
determining the current target gear of the vehicle according to the current vehicle speed and the opening degree of the accelerator pedal;
and under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is a preset virtual gear, determining a target rotating speed corresponding to the virtual gear, and controlling an engine to adjust to the target rotating speed.
2. The method of claim 1, wherein the driving state parameters further include a current driving mode of the vehicle, the method further comprising:
judging whether the current driving mode is a target driving mode;
and under the condition that the current driving mode is a target driving mode, executing the step of determining the current target gear of the vehicle according to the current vehicle speed and the opening degree of the accelerator pedal.
3. The method of claim 1, wherein the drive mode of the vehicle comprises a series drive mode, and the preset virtual gear comprises:
and the vehicle speed corresponding to the first virtual gear is less than or equal to the maximum vehicle speed corresponding to the series driving mode.
4. The method of claim 3, further comprising:
and controlling the vehicle to keep the series driving mode under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the first virtual gear.
5. The method of claim 1, wherein the drive mode of the vehicle comprises a direct drive mode having at least two actual gears, the virtual gears further comprising:
and the second virtual gear is arranged between two adjacent actual gears, wherein the target rotating speed corresponding to the second virtual gear is between two adjacent engine rotating speeds corresponding to the actual gears.
6. The method of any one of claims 1 to 5, further comprising:
and adjusting the combustion supply parameter of the engine so that the load point of the engine is in an optimal range when the engine is adjusted to the target rotating speed.
7. The method of any one of claims 1 to 5, wherein the drive modes of the vehicle include a series drive mode and a direct drive mode; the method also includes at least one of:
controlling a transmission of the vehicle to be switched to the target gear under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the actual gear of the vehicle;
and if the current driving mode of the vehicle is the series driving mode, controlling the vehicle to be switched to the direct driving mode under the condition that the current gear of the vehicle is not consistent with the target gear and the target gear is the actual gear of the vehicle.
8. A gear simulation device, comprising:
the vehicle driving state control system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire driving state parameters of a vehicle, and the driving state parameters comprise the current vehicle speed and the opening degree of an accelerator pedal;
a gear determining module configured to determine a current target gear of the vehicle according to the current vehicle speed and the accelerator pedal opening;
and the rotating speed control module is configured to determine a target rotating speed corresponding to the virtual gear under the condition that the current gear of the vehicle is inconsistent with the target gear and the target gear is a preset virtual gear, and control the engine to adjust to the target rotating speed.
9. A gear simulation device, comprising:
a memory having a computer program stored thereon;
a processor, which computer program, when executed by the processor, implements the method of any one of claims 1 to 7.
10. A vehicle comprising an apparatus as claimed in claim 8, or an apparatus as claimed in claim 9.
CN202110267910.6A 2021-03-11 2021-03-11 Gear simulation method and device and vehicle Pending CN114620027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110267910.6A CN114620027A (en) 2021-03-11 2021-03-11 Gear simulation method and device and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110267910.6A CN114620027A (en) 2021-03-11 2021-03-11 Gear simulation method and device and vehicle

Publications (1)

Publication Number Publication Date
CN114620027A true CN114620027A (en) 2022-06-14

Family

ID=81896685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110267910.6A Pending CN114620027A (en) 2021-03-11 2021-03-11 Gear simulation method and device and vehicle

Country Status (1)

Country Link
CN (1) CN114620027A (en)

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