CN117628178A - Vehicle gear adjusting method and device, electronic equipment and storage medium - Google Patents
Vehicle gear adjusting method and device, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a vehicle gear adjusting method, a device, electronic equipment and a storage medium. The method comprises the following steps: acquiring the engine speed of the current vehicle at the current moment and the running resistance of the current vehicle in a preset time period including the current moment; inquiring the corresponding downshift rotating speed according to the running resistance at the current moment; when the engine speed is lower than the downshift speed, detecting the change mode of the running resistance in a preset time period according to the running resistance in the preset time period including the current moment; determining the downshift degree of the current vehicle according to the change mode of the running resistance in a preset time period; according to the degree of the downshift, the gear of the current vehicle is downshifted to increase the engine speed. The technical scheme of the embodiment of the invention improves the accuracy of adjusting the gear of the vehicle.
Description
Technical Field
The present invention relates to the field of vehicle control technologies, and in particular, to a vehicle gear adjustment method, a device, an electronic apparatus, and a storage medium.
Background
The automatic transmission replaces the brain of a person through the electronic control device, replaces the hands and feet of the person through the actuator arranged on the transmission, has the advantages of simple structure, simple control and low cost, and simultaneously can reduce the labor intensity of a driver.
The gear adjusting method in the prior art is based on two parameters of an accelerator pedal and a vehicle speed, and adjusts the gear of the vehicle. However, when a complex road condition is encountered, it is difficult to ensure the accuracy of gear adjustment.
Disclosure of Invention
The invention provides a vehicle gear adjusting method, a device, electronic equipment and a storage medium, which improve the accuracy of vehicle gear adjustment.
According to an aspect of the present invention, there is provided a vehicle gear adjustment method, the method including:
acquiring the engine speed of the current vehicle at the current moment and the running resistance of the current vehicle in a preset time period including the current moment;
inquiring the corresponding downshift rotating speed according to the running resistance at the current moment;
when the engine speed is lower than the downshift speed, detecting the change mode of the running resistance in a preset time period according to the running resistance in the preset time period including the current moment;
determining the downshift degree of the current vehicle according to the change mode of the running resistance in a preset time period;
according to the degree of the downshift, the gear of the current vehicle is downshifted to increase the engine speed.
According to another aspect of the present invention, there is provided a vehicle gear position adjusting device including:
The running resistance acquisition module is used for acquiring the running resistance of the current vehicle in a preset time period including the current moment and the engine speed at the current moment;
the downshift rotation speed inquiry module is used for inquiring the corresponding downshift rotation speed according to the running resistance at the current moment;
the change mode detection module is used for detecting the change mode of the running resistance in a preset time period according to the running resistance in the preset time period including the current moment when the engine speed is lower than the downshift speed;
the downshift degree determining module is used for determining the downshift degree of the current vehicle according to the change mode of the running resistance in the preset time period;
and the vehicle gear adjusting module is used for performing gear down-shifting adjustment on the gear of the current vehicle according to the gear down-shifting degree so as to improve the rotating speed of the engine.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the vehicle gear adjustment method according to any one of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to execute the vehicle gear adjustment method according to any one of the embodiments of the present invention.
According to the technical scheme, the engine speed of the current vehicle at the current moment and the running resistance in the preset time period including the current moment are obtained; inquiring the corresponding downshift rotating speed according to the running resistance at the current moment; when the engine speed is lower than the downshift speed, detecting the change mode of the running resistance in a preset time period according to the running resistance in the preset time period including the current moment; determining the downshift degree of the current vehicle according to the change mode of the running resistance in a preset time period; according to the gear-down degree, the gear of the current vehicle is adjusted in a gear-down manner so as to improve the rotation speed of the engine, solve the problem that the accuracy of the gear adjustment is difficult to ensure when the prior art encounters complex road conditions, and improve the accuracy of the gear adjustment of the vehicle.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a vehicle gear adjustment method according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a vehicle gear adjustment method according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a vehicle gear adjustment method according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of gear adjustment corresponding to different running resistances according to a second embodiment of the present invention;
fig. 5 is a schematic structural view of a vehicular shift position adjusting device according to a third embodiment of the invention;
fig. 6 is a schematic structural view of an electronic device implementing a vehicle gear adjusting method according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a flowchart of a vehicle gear adjusting method according to an embodiment of the present invention. The embodiment of the invention can be suitable for the condition of adjusting the gear of the vehicle, the method can be executed by a vehicle gear adjusting device which can be realized in the form of hardware and/or software, and the vehicle gear adjusting device can be configured in electronic equipment carrying the vehicle gear adjusting function.
Referring to the vehicle gear adjustment method shown in fig. 1, the method includes:
s110, acquiring the engine speed of the current vehicle at the current moment and the running resistance of the current vehicle in a preset time period including the current moment.
The preset time period may be a preset time range including the current time. The preset time period can be set and adjusted according to experience of a technician. The preset time period may be, for example, 5 minutes. The running resistance may be the resistance of the current vehicle during running. In the running process of the current vehicle, due to the influence of environmental factors, the running resistance of the current vehicle is continuously changed, and accordingly, the gear of the current vehicle needs to be adjusted, so that the adaptability of the gear of the current vehicle to the environment is higher.
In an alternative embodiment of the invention, the current vehicle is a commercial vehicle with a mechanical automatic transmission.
Compared with a household vehicle, the commercial vehicle has more gears and has higher accuracy requirement on gear switching in the driving process. The commercial vehicle with the mechanical automatic transmission can be understood that the electronic control device is used for replacing the brain of a person, and the actuator arranged on the transmission is used for replacing the hands and feet of the person, so that the commercial vehicle has the advantages of simple structure, simple control and low cost, and simultaneously, the labor intensity of a driver can be reduced.
According to the scheme, the current vehicle is embodied into the commercial vehicle with the mechanical automatic transmission, the vehicle gear adjustment of the commercial vehicle with the mechanical automatic transmission is realized, the accuracy of the gear adjustment of the commercial vehicle with the mechanical automatic transmission is improved, and the applicability of the vehicle gear adjustment is improved.
Specifically, there may be an automatic transmission controller of the present vehicle that acquires a transmitter rotation speed at the present time and a running resistance in a preset period of time including the present time.
In an alternative embodiment of the present invention, obtaining the running resistance of the current vehicle includes: acquiring the weight of the whole vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed of the current vehicle; calculating the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance of the current vehicle according to the weight of the whole vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed; and summing the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance to obtain the running resistance of the current vehicle.
The overall vehicle weight may be used to characterize the weight of the current vehicle. The rolling resistance coefficient may be used to characterize the effect of the tire rolling resistance of the current vehicle. The air resistance coefficient may be used to characterize the effect of air resistance of the current vehicle during travel. The road grade may be used to characterize the grade condition of the road on which the current vehicle is traveling. The windward area can be used to characterize the impact of wind resistance during current vehicle travel. The conversion coefficient of the whole vehicle rotation weight can be used for representing the influence of acceleration resistance in the current vehicle running process. The current vehicle speed may be a running speed of the current vehicle. The rolling resistance may be the rolling resistance of the tire of the current vehicle during running. The air resistance may be the resistance of the current vehicle to air during travel of the current vehicle. The ramp resistance may be the resistance of the ramp on which the current vehicle is traveling to the current vehicle. The acceleration resistance may be resistance of the current vehicle to the current vehicle in acceleration running.
Specifically, the whole vehicle weight, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the whole vehicle rotation weight conversion coefficient and the current vehicle speed of the current vehicle can be obtained through the automatic transmission controller of the current vehicle. The rolling resistance, the air resistance, the ramp resistance and the acceleration resistance of the current vehicle can be calculated according to the weight of the whole vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed. The rolling resistance, air resistance, ramp resistance and acceleration resistance may be summed to obtain the current running resistance of the vehicle.
In an alternative embodiment of the present invention, calculating the rolling resistance, the air resistance, the ramp resistance, and the acceleration resistance of the current vehicle according to the vehicle weight, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the frontal area, the vehicle rotational weight conversion coefficient, and the current vehicle speed includes: calculating the rolling resistance of the current vehicle according to the weight of the whole vehicle and the rolling resistance coefficient; calculating the air resistance of the current vehicle according to the air resistance coefficient, the windward area and the current vehicle speed; according to the weight of the whole vehicle and the road gradient, calculating the current ramp resistance of the vehicle; and calculating the acceleration resistance of the current vehicle according to the weight of the whole vehicle, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed.
Specifically, the rolling resistance of the current vehicle can be calculated according to the weight of the whole vehicle and the rolling resistance coefficient. The air resistance of the current vehicle can be calculated according to the air resistance coefficient, the windward area and the current vehicle speed. The current vehicle ramp resistance can be calculated according to the weight of the whole vehicle and the road gradient. The acceleration resistance of the current vehicle can be calculated according to the weight of the whole vehicle, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed.
For example, the rolling resistance of the current vehicle may be calculated using the following formula:
F f ＝m*g*f；
Wherein F is f Rolling resistance of the current vehicle; m is the weight of the whole vehicle; g is gravity acceleration; f is the rolling resistance coefficient.
The air resistance of the current vehicle can be calculated using the following formula:
Fw＝(C D *A*u 2 )/21.15；
wherein F is w Air resistance for the current vehicle; c (C) D Is the air resistance coefficient; a is the windward area; u is the current vehicle speed.
The ramp resistance of the current vehicle may be calculated using the following formula:
F i ＝m*g*i；
wherein F is i The ramp resistance for the current vehicle; m is the weight of the whole vehicle; g is gravity acceleration; i is road grade.
The acceleration resistance of the current vehicle may be calculated using the following formula:
Fj＝k*m*(du/dt)；
wherein F is j Acceleration resistance for the current vehicle; k is the conversion coefficient of the rotation weight of the whole vehicle; m is the weight of the whole vehicle; u is the current vehicle speed.
According to the scheme, the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance are directly calculated, so that the determination process of the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance is further simplified, and the efficiency of adjusting the gear of the vehicle is further improved.
For example, the following formula may be used to calculate the running resistance of the current vehicle:
F＝Ff+Fw+Fi+Fj；
wherein F is f Rolling resistance of the current vehicle; f (F) w Air resistance for the current vehicle; f (F) i The ramp resistance for the current vehicle; f (F) j Is the acceleration resistance of the current vehicle.
According to the scheme, rolling resistance, air resistance, ramp resistance and acceleration resistance are introduced, typical resistance in the running process of the current vehicle is considered, the running resistance of the current vehicle is calculated by summing the typical resistance, the calculation process of the running resistance is simplified, and the efficiency of adjusting the gear of the vehicle is further improved.
S120, inquiring the corresponding downshift rotating speed according to the running resistance at the current moment.
The downshift rotational speed may be a minimum value of the engine rotational speed at the running resistance. The downshift rotational speed corresponds to the running resistance one by one. The correspondence between the downshift rotational speed and the running resistance can be set and adjusted by the technician based on the test analysis. The correspondence between the downshift rotational speed and the running resistance may be stored in the database in advance.
Specifically, the corresponding downshift rotational speed may be queried in the database according to the running resistance at the current time.
And S130, when the engine speed is lower than the downshift speed, detecting the change mode of the running resistance in the preset time period according to the running resistance in the preset time period including the current moment.
The engine speed is lower than the downshift speed, and it is understood that a downshift is required to increase the engine speed. The manner of change of the running resistance in the preset time period can be used for representing the influence of the environmental factors of the current vehicle on the current vehicle. The manner of changing the running resistance in the preset period of time may include a large-to-small change or a small-to-large change, or the like.
Specifically, when the engine speed is detected to be lower than the downshift speed, the manner of detecting the change in the running resistance in the preset time period may be from small to large or from large to small according to the running resistance in the preset time period including the current time.
And S140, determining the downshift degree of the current vehicle according to the change mode of the running resistance in the preset time period.
The degree of the downshift may be a downshift adjustment value for the current vehicle. By way of example, the degree of downshifting is first gear, and it is understood that the current vehicle is downshifted by first gear based on the current gear. The running resistance has a correspondence between the manner of change in the preset time period and the degree of downshift. The correspondence between the manner of change in the running resistance in the preset period of time and the degree of downshift may be stored in the database in advance. The driving resistance varies in different modes within a preset time period, and the corresponding downshift degree also varies, so that the downshift degree is flexibly adjusted.
Specifically, the corresponding downshift degree can be queried in the database according to the change mode of the running resistance in the preset time period, and the downshift degree of the current vehicle can be determined.
In an alternative embodiment of the present invention, determining the degree of downshifting of the current vehicle according to the manner in which the running resistance varies within the preset time period further includes: when the running resistance changes from large to small in a preset time period, determining that the downshift degree of the current vehicle is a first gear.
The driving resistance varies from large to small within the preset time period, and it is understood that the driving resistance of the current vehicle is gradually decreasing, that is, the current vehicle is in the driving resistance transition stage. In this case, the running resistance has a smaller and smaller influence on the current vehicle, and the degree of the downshift of the current vehicle can be directly determined as first gear.
Specifically, when the running resistance changes from large to small in the preset time period, it is possible to directly determine that the degree of downshifting of the current vehicle is first gear.
According to the scheme, when the running resistance is changed from large to small in the preset time period, the downshift degree of the current vehicle can be directly determined to be first gear, the determination process of the downshift degree of the current vehicle is simplified, and the efficiency of adjusting the gear of the vehicle is improved.
And S150, performing downshift adjustment on the gear of the current vehicle according to the downshift degree so as to increase the engine speed.
Specifically, a difference between the gear of the current vehicle and the downshift degree may be calculated according to the downshift degree, and the gear of the current vehicle may be adjusted to the difference to increase the engine speed.
According to the technical scheme, the engine rotating speed of the current vehicle at the current moment and the running resistance in the preset time period including the current moment are obtained, the corresponding downshift rotating speed is inquired according to the running resistance at the current moment, when the engine rotating speed is lower than the downshift rotating speed, the change mode of the running resistance in the preset time period is detected according to the running resistance in the preset time period including the current moment, the downshift degree of the current vehicle is determined according to the change mode of the running resistance in the preset time period, downshift adjustment is performed on the gear of the current vehicle according to the downshift degree so as to improve the engine rotating speed, the gear of the vehicle can be flexibly adjusted according to the change mode of the running resistance in the preset time period, and the influence of environmental factors such as road conditions on the adjustment of the gear of the vehicle is considered, so that the accuracy of the gear adjustment of the vehicle is improved.
Example two
Fig. 2 is a flowchart of a vehicle gear adjusting method according to a second embodiment of the present invention. Based on the embodiment, the embodiment of the invention determines the downshift degree of the current vehicle according to the change mode of the running resistance in the preset time period, namely determines the downshift degree of the current vehicle according to the running resistance at the current moment when the running resistance changes from small to large in the preset time period, introduces the numerical value of the running resistance, further judges the downshift degree of the current vehicle, and further improves the accuracy of adjusting the gear of the vehicle. In the embodiments of the present invention, the descriptions of other embodiments may be referred to in the portions not described in detail.
Referring to fig. 2, the vehicle gear adjustment method includes:
s210, acquiring the engine speed of the current vehicle at the current moment and the running resistance of the current vehicle in a preset time period including the current moment.
S220, inquiring the corresponding downshift rotating speed according to the running resistance at the current moment.
And S230, when the engine speed is lower than the downshift speed, detecting the change mode of the running resistance in the preset time period according to the running resistance in the preset time period including the current moment.
S240, when the running resistance changes from small to large in a preset time period, determining the downshift degree of the current vehicle according to the running resistance at the current moment.
The running resistance varies from small to large within the preset time period, and it is understood that the running resistance of the current vehicle is gradually increased, that is, the current vehicle may be in an uphill condition. Under the working condition, the larger the running resistance is, the larger the downshift degree of the current vehicle is, so as to improve the adaptability of the current vehicle and the environmental road condition. The running resistance of different values and the corresponding downshift degree are different. There is a correspondence between the running resistance and the degree of downshifting. The correspondence between the running resistance and the degree of downshifting may be stored in the database in advance.
Specifically, when the running resistance changes from small to large in the preset time period, the corresponding downshift degree can be queried in the database according to the running resistance at the current moment, and the downshift degree is determined as the downshift degree of the current vehicle.
In an alternative embodiment of the present invention, determining the degree of downshift of the current vehicle according to the magnitude of the running resistance at the current time includes: when the running resistance at the current moment is larger than a preset resistance threshold value, determining that the downshift degree of the current vehicle is a second gear; and when the running resistance at the current moment is smaller than or equal to a preset resistance threshold value, determining the downshift degree of the current vehicle as a first gear.
The preset resistance threshold may be a limit value of a preset running resistance. The preset resistance threshold may be set and adjusted according to the experience of the skilled person. For example, the preset resistance threshold may be 40000N. The degree of the downshift is a second gear, which is understood to be a downshift based on the current gear. The degree of the downshift is a first gear, which is understood to be a first gear lower than the current gear.
Specifically, the running resistance at the current time and the preset resistance threshold may be compared, and if the running resistance at the current time is greater than the preset resistance threshold, it is determined that the downshift degree of the current vehicle is the second gear. And if the running resistance at the current moment is smaller than or equal to a preset resistance threshold value, determining that the downshift degree of the current vehicle is a first gear.
The scheme introduces the preset resistance threshold, simplifies the process of determining the current vehicle downshift degree, and improves the efficiency of vehicle gear adjustment.
S250, according to the downshift degree, performing downshift adjustment on the gear of the current vehicle so as to increase the engine speed.
According to the technical scheme, the engine rotating speed of the current vehicle at the current moment and the running resistance in the preset time period including the current moment are obtained, the corresponding downshift rotating speed is inquired according to the running resistance at the current moment, when the engine rotating speed is lower than the downshift rotating speed, the change mode of the running resistance in the preset time period is detected according to the running resistance in the preset time period including the current moment, when the running resistance is changed from small to large in the preset time period, the downshift degree of the current vehicle is determined according to the running resistance at the current moment, the downshift adjustment is carried out on the gear of the current vehicle according to the downshift degree, so that the engine rotating speed is improved, when the running resistance is changed from small to large, the downshift degree of the current vehicle is further judged, and the accuracy of the gear adjustment of the current vehicle is further improved.
FIG. 3 is a flow chart of a vehicle gear adjustment method. Based on the above embodiment, fig. 3 is a preferred embodiment of the present invention.
Referring to fig. 3, the vehicle gear adjustment method includes:
s310, acquiring vehicle information through an automatic transmission controller.
Specifically, the weight m, the rolling resistance coefficient f and the air resistance coefficient C of the whole vehicle can be obtained through an automatic transmission controller D Vehicle information such as road gradient i, windward area A, conversion coefficient k of the whole vehicle rotation weight, current vehicle speed u and the like.
S320, calculating rolling resistance F f Air resistance F w Resistance F of ramp i Resistance to acceleration F j And calculates the running resistance F.
For example, the rolling resistance of the current vehicle may be calculated using the following formula:
F f ＝m*g*f；
wherein F is f Rolling resistance of the current vehicle; m is the weight of the whole vehicle; g is gravity acceleration; f is the rolling resistance coefficient.
The air resistance of the current vehicle can be calculated using the following formula:
Fw＝(C D *A*u 2 )/21.15；
wherein F is w Air resistance for the current vehicle; c (C) D Is the air resistance coefficient; a is the windward area; u is the current vehicle speed.
The ramp resistance of the current vehicle may be calculated using the following formula:
F i ＝m*g*i；
wherein F is i The ramp resistance for the current vehicle; m is the weight of the whole vehicle; g is gravity acceleration; i is road grade.
The acceleration resistance of the current vehicle may be calculated using the following formula:
Fj＝k*m*(du/dt)；
wherein F is j Acceleration resistance for the current vehicle; m is the weight of the whole vehicle; k is the conversion coefficient of the rotation weight of the whole vehicle; u is the current vehicle speed.
The running resistance of the current vehicle may be calculated using the following formula:
F＝Ff+Fw+Fi+Fj；
wherein F is f Rolling resistance of the current vehicle; f (F) w Air resistance for the current vehicle; f (F) i The ramp resistance for the current vehicle; f (F) j Is the acceleration resistance of the current vehicle.
S330, in a normal driving stage, the driving resistance F is detected to be smaller than or equal to 20000N, and when the engine speed is lower than the downshift speed, the downshift degree of the current vehicle is determined to be first gear.
In the normal running phase, it is understood that when the running resistance F is 20000N or less is detected. At this time, the current vehicle may be in a flat slope condition or a downhill slope condition.
Specifically, in the normal driving stage, when the driving resistance is detected to be less than or equal to 20000N, and when the engine speed is lower than the downshift speed, the downshift degree of the current vehicle can be determined as a first gear, the gearbox is controlled to be in a normal downshift, and the engine speed is increased.
S340, detecting that the running resistance is larger than 20000N in the stage of small running resistance, and determining that the downshift degree of the current vehicle is first gear when the engine speed is lower than the downshift speed.
The small running resistance phase is understood to be when the running resistance F is detected to be greater than 20000N. At this time, the current vehicle may be in an uphill condition, but the road gradient is small.
Specifically, in the small running resistance stage, it is detected that the running resistance is greater than 20000N, and when the engine speed is lower than the downshift speed, it is determined that the downshift degree of the current vehicle is a first gear, the gearbox is controlled to normally downshift by the first gear, and the engine speed is increased.
S350, detecting that the running resistance is larger than 40000N in a large running resistance stage, and determining that the downshift degree of the current vehicle is second gear when the engine speed is lower than the downshift speed.
The large running resistance phase is understood to be when the running resistance F is detected to be greater than 40000N. At this time, the current vehicle may be in an uphill condition, and the road gradient is large.
Specifically, in the large running resistance stage, the running resistance is detected to be greater than 40000N, and when the engine speed is lower than the downshift speed, the downshift degree of the current vehicle is determined to be the second gear, the gearbox is controlled to normally downshift the second gear, and the engine speed and the vehicle dynamics are improved.
S360, detecting that the running resistance is changed from large to small in a running resistance transition stage, and determining that the downshift degree of the current vehicle is first gear when the engine speed is lower than the downshift speed.
The driving resistance transition stage is understood to be when the driving resistance F is detected as decreasing stepwise from large.
Specifically, in the running resistance transition stage, the running resistance is detected to be changed from large to small, and when the engine speed is lower than the downshift speed, the downshift degree of the current vehicle is determined to be first gear, the gearbox is controlled to downshift by first gear, and the engine speed is increased.
Fig. 4 is a schematic diagram of gear adjustment corresponding to different running resistances. As shown in fig. 4, the vehicle travel may be divided into a normal travel phase, a low-resistance travel phase, a high-resistance travel phase, and a resistance transition phase according to different preset resistance thresholds. The correspondence between the running resistance and the shift rotational speed can be seen in fig. 4. The downshift rotational speed at the normal running stage and the low resistance stage is greater than the downshift rotational speed at the high resistance stage and the resistance transition stage. When the engine speed is lower than the downshift speed, the degree of downshift of the current vehicle is also different at different running resistances. The downshifting degree of the normal driving stage, the small resistance stage and the resistance transition stage is 1 grade; the degree of downshift in the high-resistance phase is 2.
The scheme can dynamically adapt to road conditions, improves the trafficability of vehicles, reduces gear shifting circulation and improves the gear shifting accuracy.
Example III
Fig. 5 is a schematic structural diagram of a gear adjusting device for a vehicle according to a third embodiment of the present invention. The embodiment of the invention is applicable to the condition of adjusting the gear of the vehicle, the device can execute the method for adjusting the gear of the vehicle, the device can be realized in the form of hardware and/or software, and the device can be configured in electronic equipment for bearing the gear adjusting function of the vehicle.
Referring to fig. 5, a vehicle gear position adjusting device includes: a running resistance acquisition module 510, a downshift rotational speed inquiry module 520, a change pattern detection module 530, a downshift degree determination module 540, and a vehicle gear adjustment module 550. The running resistance obtaining module 510 is configured to obtain an engine speed of the current vehicle at a current time and a running resistance in a preset time period including the current time; the downshift rotation speed inquiry module 520 is configured to inquire a corresponding downshift rotation speed according to the running resistance at the current moment; a change mode detection module 530, configured to detect a change mode of the running resistance in a preset time period according to the running resistance in the preset time period including the current time when the engine speed is lower than the downshift speed; a downshift degree determining module 540, configured to determine a downshift degree of the current vehicle according to a change manner of the running resistance in a preset time period; the vehicle gear adjusting module 550 is configured to perform a downshift adjustment on a gear of the current vehicle according to the downshift degree so as to increase the engine speed.
According to the technical scheme, the engine rotating speed of the current vehicle at the current moment and the running resistance in the preset time period including the current moment are obtained, the corresponding downshift rotating speed is inquired according to the running resistance at the current moment, when the engine rotating speed is lower than the downshift rotating speed, the change mode of the running resistance in the preset time period is detected according to the running resistance in the preset time period including the current moment, the downshift degree of the current vehicle is determined according to the change mode of the running resistance in the preset time period, downshift adjustment is performed on the gear of the current vehicle according to the downshift degree so as to improve the engine rotating speed, the gear of the vehicle can be flexibly adjusted according to the change mode of the running resistance in the preset time period, and the influence of environmental factors such as road conditions on the adjustment of the gear of the vehicle is considered, so that the accuracy of the gear adjustment of the vehicle is improved.
In an alternative embodiment of the present invention, the downshift degree determination module 540 includes: a first downshift degree determining unit configured to determine a downshift degree of the current vehicle according to a magnitude of the running resistance at the current time when the running resistance changes from small to large in a preset time period.
In an alternative embodiment of the present invention, the first downshift degree determination unit includes: a first downshift degree determination subunit configured to determine that a downshift degree of the current vehicle is a second gear when a running resistance at the current time is greater than a preset resistance threshold; and the second downshift degree determining subunit is used for determining that the downshift degree of the current vehicle is a first gear when the running resistance at the current moment is smaller than or equal to a preset resistance threshold value.
In an alternative embodiment of the present invention, the downshift degree determination module 540 further includes: and a second downshift degree determining unit configured to determine that the current downshift degree of the vehicle is a first gear when the running resistance changes from large to small within a preset period of time.
In an alternative embodiment of the present invention, the driving resistance acquisition module 510 includes: the whole vehicle weight acquisition unit is used for acquiring the whole vehicle weight, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the whole vehicle rotating weight conversion coefficient and the current vehicle speed of the current vehicle; the typical resistance calculation unit is used for calculating the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance of the current vehicle according to the weight of the whole vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed; and the running resistance calculation unit is used for summing the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance to obtain the running resistance of the current vehicle.
In an alternative embodiment of the present invention, a typical resistance calculation unit includes: the rolling resistance calculation subunit is used for calculating the rolling resistance of the current vehicle according to the weight of the whole vehicle and the rolling resistance coefficient; the air resistance calculation subunit is used for calculating the air resistance of the current vehicle according to the air resistance coefficient, the windward area and the current vehicle speed; the ramp resistance calculation subunit is used for calculating the ramp resistance of the current vehicle according to the weight of the whole vehicle and the road gradient; and the acceleration resistance calculating subunit is used for calculating the acceleration resistance of the current vehicle according to the weight of the whole vehicle, the conversion coefficient of the rotation weight of the whole vehicle and the current vehicle speed.
In an alternative embodiment of the invention, the current vehicle is a commercial vehicle with a mechanical automatic transmission.
The vehicle gear adjusting device provided by the embodiment of the invention can execute the vehicle gear adjusting method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the executing method.
In the technical scheme of the embodiment of the invention, the related engine speed of the current vehicle at the current moment, the running resistance in the preset time period including the current moment, the whole vehicle weight of the current vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the whole vehicle rotating weight conversion coefficient, the current vehicle speed and the like are acquired, stored and applied and the like, all meet the regulations of related laws and regulations, and the public welcome is not violated.
Example IV
Fig. 6 shows a schematic diagram of an electronic device 600 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 6, the electronic device 600 includes at least one processor 601, and a memory, such as a Read Only Memory (ROM) 602, a Random Access Memory (RAM) 603, etc., communicatively connected to the at least one processor 601, in which the memory stores a computer program executable by the at least one processor, and the processor 601 may perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM) 602 or the computer program loaded from the storage unit 608 into the Random Access Memory (RAM) 603. In the RAM603, various programs and data required for the operation of the electronic device 600 can also be stored. The processor 601, the ROM 602, and the RAM603 are connected to each other through a bus 604. An input/output (I/O) interface 605 is also connected to bus 604.
A number of components in the electronic device 600 are connected to the I/O interface 605, including: an input unit 606 such as a keyboard, mouse, etc.; an output unit 607 such as various types of displays, speakers, and the like; a storage unit 608, such as a magnetic disk, optical disk, or the like; and a communication unit 609 such as a network card, modem, wireless communication transceiver, etc. The communication unit 609 allows the electronic device 600 to exchange information/data with other devices through a computer network, such as the internet, and/or various telecommunication networks.
The processor 601 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 601 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 601 performs the various methods and processes described above, such as a vehicle gear adjustment method.
In some embodiments, the vehicle gear adjustment method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 608. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 600 via the ROM 602 and/or the communication unit 609. When the computer program is loaded into RAM 603 and executed by processor 601, one or more steps of the vehicle gear adjustment method described above may be performed. Alternatively, in other embodiments, processor 601 may be configured to perform the vehicle gear adjustment method in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above can be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS (Virtual Private Server ) service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A vehicle gear adjustment method, characterized in that the method comprises:
acquiring the engine speed of the current vehicle at the current moment and the running resistance of the current vehicle in a preset time period including the current moment;
inquiring the corresponding downshift rotating speed according to the running resistance at the current moment;
detecting a change mode of the running resistance in a preset time period according to the running resistance in the preset time period including the current moment when the engine speed is lower than the downshift speed;
Determining the downshift degree of the current vehicle according to the change mode of the running resistance in the preset time period;
and according to the downshift degree, performing downshift adjustment on the gear of the current vehicle so as to increase the engine speed.
2. The method according to claim 1, wherein the determining the degree of downshifting of the current vehicle according to the manner in which the running resistance varies within the preset time period includes:
and when the running resistance changes from small to large in the preset time period, determining the downshift degree of the current vehicle according to the running resistance at the current moment.
3. The method according to claim 2, wherein the determining the degree of downshifting of the current vehicle according to the magnitude of the running resistance at the current time includes:
when the running resistance at the current moment is larger than a preset resistance threshold value, determining that the downshift degree of the current vehicle is a second gear;
and when the running resistance at the current moment is smaller than or equal to a preset resistance threshold value, determining the downshift degree of the current vehicle as a first gear.
4. The method according to claim 1, wherein the determining the degree of downshift of the current vehicle according to the manner in which the running resistance varies within the preset time period, further includes:
And determining that the downshift degree of the current vehicle is a first gear when the running resistance changes from large to small within the preset time period.
5. The method according to claim 1, wherein the acquiring the running resistance of the current vehicle includes:
acquiring the weight of the whole vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed of the current vehicle;
calculating the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance of the current vehicle according to the weight of the whole vehicle, the rolling resistance coefficient, the air resistance coefficient, the road gradient, the windward area, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed;
and summing the rolling resistance, the air resistance, the ramp resistance and the acceleration resistance to obtain the running resistance of the current vehicle.
6. The method of claim 5, wherein the calculating the rolling, air, ramp, and acceleration resistances of the current vehicle based on the vehicle weight, the rolling resistance coefficient, the air resistance coefficient, the road grade, the frontal area, the vehicle rotational weight conversion coefficient, and the current vehicle speed comprises:
Calculating the rolling resistance of the current vehicle according to the weight of the whole vehicle and the rolling resistance coefficient;
calculating the air resistance of the current vehicle according to the air resistance coefficient, the windward area and the current vehicle speed;
calculating the ramp resistance of the current vehicle according to the weight of the whole vehicle and the road gradient;
and calculating the acceleration resistance of the current vehicle according to the weight of the whole vehicle, the conversion coefficient of the rotating weight of the whole vehicle and the current vehicle speed.
7. The method of claim 1, wherein the current vehicle is a commercial vehicle with a mechanical automatic transmission.
8. A vehicle gear adjustment device, characterized in that the device comprises:
the running resistance acquisition module is used for acquiring the running resistance of the current vehicle in a preset time period including the current moment and the engine speed at the current moment;
the downshift rotation speed inquiry module is used for inquiring the corresponding downshift rotation speed according to the running resistance at the current moment;
the change mode detection module is used for detecting the change mode of the running resistance in the preset time period according to the running resistance in the preset time period including the current moment when the engine rotating speed is lower than the downshift rotating speed;
A downshift degree determining module, configured to determine a downshift degree of the current vehicle according to a manner of change of the running resistance in the preset time period;
and the vehicle gear adjusting module is used for carrying out gear down adjustment on the gear of the current vehicle according to the gear down degree so as to improve the engine rotating speed.
9. An electronic device, the electronic device comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the vehicle gear adjustment method of any one of claims 1-7.
10. A computer readable storage medium storing computer instructions for causing a processor to implement the vehicle gear adjustment method of any one of claims 1-7 when executed.
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| CN202311746151.7A CN117628178A (en) | 2023-12-18 | 2023-12-18 | Vehicle gear adjusting method and device, electronic equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311746151.7A CN117628178A (en) | 2023-12-18 | 2023-12-18 | Vehicle gear adjusting method and device, electronic equipment and storage medium |
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| CN202311746151.7A Pending CN117628178A (en) | 2023-12-18 | 2023-12-18 | Vehicle gear adjusting method and device, electronic equipment and storage medium |
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