CN112211997A - Gear shifting reminding control method and system for manual transmission gearbox of commercial vehicle - Google Patents
Gear shifting reminding control method and system for manual transmission gearbox of commercial vehicle Download PDFInfo
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- CN112211997A CN112211997A CN202011165256.XA CN202011165256A CN112211997A CN 112211997 A CN112211997 A CN 112211997A CN 202011165256 A CN202011165256 A CN 202011165256A CN 112211997 A CN112211997 A CN 112211997A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H59/24—Inputs being a function of torque or torque demand dependent on the throttle opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
- F16H2059/082—Range selector apparatus with different modes
- F16H2059/084—Economy mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H2059/366—Engine or motor speed
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a method and a system for controlling gear shifting reminding of a manual transmission gearbox of a commercial vehicle, which relate to the field of driving of commercial vehicles of automobiles, and the method comprises the steps of calculating and obtaining the corresponding relation among gears, engine rotating speed and accelerator pedal opening under the premise of low oil consumption based on vehicle working condition information; acquiring the current engine speed of a vehicle in the running process of the vehicle; obtaining a target gear and a target accelerator pedal opening degree based on the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree according to the obtained engine rotating speed; and performing gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, the current accelerator pedal opening and the target accelerator pedal opening. The invention guides a driver to control the engine within an economic rotating speed range by gear shifting reminding and accelerator adjusting reminding, thereby exerting the output effect of the engine to the maximum extent and achieving the aims of reducing oil consumption and improving the dynamic property of the vehicle.
Description
Technical Field
The invention relates to the field of driving of automobiles and commercial vehicles, in particular to a gear shifting reminding control method and system for a manual transmission gearbox of a commercial vehicle.
Background
The manual transmission gear box is a manual speed change device of an automobile, and is used for changing the rotating speed and the torque transmitted to a driving wheel by an engine in a manual control mode, so that the automobile obtains different traction force and speed under various working conditions of original starting, climbing, turning, accelerating and the like, and the engine works in a more favorable working condition range.
At present, commercial car driver group is more younger, because experience is not enough, often because of not knowing how to standardize when driving and shift and vexation, appear driving the in-process and hold the inaccurate problem to gear shifting opportunity to lead to the vehicle to appear the oil consumption on the high side, problem that power is not enough.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a shift reminding control method and a shift reminding control system for a manual transmission gearbox of a commercial vehicle.
In order to achieve the purpose, the invention provides a gear shifting reminding control method for a manual transmission gearbox of a commercial vehicle, which comprises the following steps:
on the basis of the vehicle working condition information, calculating to obtain the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening degree on the premise of low oil consumption;
acquiring the current engine speed of a vehicle in the running process of the vehicle;
obtaining a target gear and a target accelerator pedal opening degree based on the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree according to the obtained engine rotating speed;
and performing gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, the current accelerator pedal opening and the target accelerator pedal opening.
On the basis of the technical scheme, the vehicle working condition information comprises the speed ratio of each gear of the gearbox, the radius of a tire, the speed ratio of a drive axle and a universal characteristic curve.
On the basis of the technical scheme, the calculation is used for obtaining the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening degree on the premise of low oil consumption, and the method specifically comprises the following steps:
and calculating and storing the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening on the premise of low oil consumption according to the gear speed ratio of each gear of a gearbox of the vehicle, the tire radius, the drive axle speed ratio and the universal characteristic curve in a software simulation mode.
On the basis of the technical proposal, the device comprises a shell,
before carrying out shift reminding and/or throttle adjustment reminding, the method further comprises the following steps: if and only if the precondition is met, carrying out gear shifting reminding and/or throttle adjustment reminding, otherwise, not carrying out gear shifting reminding and/or throttle adjustment reminding;
the precondition is that the vehicle has a tendency to continue accelerating, the power of the vehicle is not reduced after the shift operation, and the engine speed is in a low fuel consumption region of the universal characteristic curve after the shift operation.
On the basis of the technical scheme, gear shifting reminding and/or accelerator adjustment reminding are/is carried out through the vehicle instrument.
On the basis of the technical scheme, based on the current gear and the target gear, the current accelerator pedal opening and the target accelerator pedal opening, the gear shifting reminding and/or the accelerator adjustment reminding are/is specifically as follows:
when the current gear is inconsistent with the target gear, gear shifting reminding is carried out;
when the current gear is consistent with the target gear, no gear shifting reminding is performed;
when the opening degree of the current accelerator pedal is inconsistent with the target opening degree of the accelerator pedal, performing accelerator adjustment reminding;
and when the opening degree of the current accelerator pedal is consistent with the target opening degree of the accelerator pedal, no accelerator adjustment reminding is carried out.
On the basis of the technical proposal, the device comprises a shell,
and during the gear shifting reminding period, the current gear of the vehicle is obtained, and if the obtained current gear of the vehicle is consistent with the target gear, the gear shifting reminding is stopped.
On the basis of the technical proposal, the device comprises a shell,
and during the accelerator adjustment reminding period, acquiring the current accelerator pedal opening of the vehicle, and stopping the accelerator adjustment reminding if the acquired current accelerator pedal opening of the vehicle is consistent with the target accelerator pedal opening.
The invention provides a gear shifting reminding control system for a manual transmission gearbox of a commercial vehicle, which comprises:
the calculation module is used for calculating and obtaining the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening degree on the premise of low oil consumption based on the vehicle working condition information;
the acquisition module is used for acquiring the current engine speed of the vehicle in the running process of the vehicle;
the determining module is used for determining a target gear and a target accelerator pedal opening degree according to the acquired engine rotating speed and on the basis of the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree;
and the reminding module is used for carrying out gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, and the current accelerator pedal opening and the target accelerator pedal opening.
On the basis of the technical scheme, the vehicle working condition information comprises the speed ratio of each gear of the gearbox, the radius of a tire, the speed ratio of a drive axle and a universal characteristic curve.
Compared with the prior art, the invention has the advantages that: by formulating the corresponding relation among the gear, the engine speed and the accelerator pedal opening, the target gear and the target accelerator pedal opening are obtained based on the current engine speed, the engine is guided to control the engine within the range of the economic speed by gear shifting reminding and accelerator adjusting reminding under the premise of ensuring the power from the consideration of the fuel economy of the engine, the output effect of the engine is exerted to the maximum, the purposes of reducing the oil consumption and improving the vehicle dynamic property are achieved, and the driving behavior of the driver can be standardized by gear shifting reminding and accelerator adjusting reminding.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flowchart of a shift reminding control method for a manual transmission gearbox of a commercial vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a shift prompt and throttle adjustment prompt displayed on a meter in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a shift reminding control system of a manual transmission gearbox of a commercial vehicle in an embodiment of the invention.
Detailed Description
The embodiment of the invention provides a gear shifting reminding control method for a manual transmission gearbox of a commercial vehicle, which is used for guiding a driver to control an engine within an economic rotating speed range by gear shifting reminding and accelerator adjusting reminding under the premise of ensuring power from the consideration of fuel economy of the engine so as to achieve the purposes of reducing oil consumption and improving the vehicle power. The embodiment of the invention correspondingly provides a gear shifting reminding control system of the manual transmission gearbox of the commercial vehicle.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the shift reminding control method for the manual transmission gearbox of the commercial vehicle provided by the embodiment of the invention specifically comprises the following steps:
s1: and calculating to obtain the corresponding relation among the gears, the engine rotating speed and the opening degree of the accelerator pedal on the premise of low oil consumption based on the vehicle working condition information.
In the embodiment of the invention, the vehicle working condition information comprises the speed ratio of each gear of the gearbox, the radius of a tire, the speed ratio of a drive axle and a universal characteristic curve. Different vehicles have different operating characteristics, and for different vehicles, the optimal fuel-saving gear and the accelerator pedal opening corresponding to the rotating speed range may not be the same in a certain fixed rotating speed range, so that specific working condition information of the vehicle needs to be acquired in order to obtain the optimal corresponding relationship among the gear, the engine rotating speed and the accelerator pedal opening on the premise of fuel saving of the vehicle, and the corresponding relationship among the gear, the engine rotating speed and the accelerator pedal opening on the premise of low fuel consumption of the vehicle is obtained on the basis of the specific working condition information corresponding to the vehicle. Of course, the power is the key for the normal running of the vehicle, and the dynamic property of the vehicle is also ensured on the premise of ensuring low fuel consumption.
In the embodiment of the invention, the corresponding relation among the gear, the engine speed and the accelerator pedal opening under the premise of low oil consumption is obtained by calculation, and the corresponding relation specifically comprises the following steps:
and calculating and storing the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening on the premise of low oil consumption according to the gear speed ratio of each gear of a gearbox of the vehicle, the tire radius, the drive axle speed ratio and the universal characteristic curve in a software simulation mode.
Through simulation software, the economic rotating speed range of each gear of the vehicle is theoretically calculated on the software, the corresponding engine rotating speed after the gear is shifted up/down is calculated, and storage and recording are carried out, so that the corresponding relation between the opening degree of an accelerator pedal and the economic rotating speed and the corresponding relation between the gear and the economic rotating speed are finally obtained.
S2: and acquiring the current engine speed of the vehicle in the running process of the vehicle. On the premise of ensuring low oil consumption, the rotating speed of the engine corresponds to the optimal gear and the optimal opening degree of the accelerator pedal, so that the current real-time rotating speed of the engine of the vehicle is obtained in the running process of the vehicle, and the optimal gear and the optimal opening degree of the accelerator pedal corresponding to the real-time rotating speed are obtained.
S3: and obtaining a target gear and a target accelerator pedal opening degree based on the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree according to the obtained engine rotating speed.
In the embodiment of the invention, on the premise of ensuring the dynamic property and low oil consumption of the vehicle, an optimal corresponding relation exists among the gear, the engine rotating speed and the accelerator pedal opening, so that the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening is inquired based on the acquired engine rotating speed, the gear corresponding to the engine rotating speed and the accelerator pedal opening are obtained, the obtained gear is a target gear, and the obtained accelerator pedal opening is the target accelerator pedal opening.
S4: and performing gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, the current accelerator pedal opening and the target accelerator pedal opening. Namely, whether the current gear and the current accelerator pedal opening are consistent with the target gear and the target accelerator pedal opening or not is judged based on the current gear and the current accelerator pedal opening, and when the current gear and the current accelerator pedal opening are inconsistent with the target gear and the target accelerator pedal opening, gear shifting reminding and accelerator adjustment reminding are carried out.
In the embodiment of the invention, based on the current gear and the target gear, the current accelerator pedal opening and the target accelerator pedal opening, gear shifting reminding and/or accelerator adjustment reminding are/is carried out, and the method specifically comprises the following steps:
when the current gear is inconsistent with the target gear, gear shifting reminding is carried out;
when the current gear is consistent with the target gear, no gear shifting reminding is performed;
when the opening degree of the current accelerator pedal is inconsistent with the target opening degree of the accelerator pedal, performing accelerator adjustment reminding;
and when the opening degree of the current accelerator pedal is consistent with the target opening degree of the accelerator pedal, no accelerator adjustment reminding is carried out.
Namely, if the current gear is inconsistent with the target gear, gear shifting reminding is carried out; if the current accelerator pedal opening degree is inconsistent with the target accelerator pedal opening degree, performing accelerator adjustment reminding; if the current gear is not consistent with the target gear and the current accelerator pedal opening is not consistent with the target accelerator pedal opening, simultaneously carrying out gear shifting reminding and accelerator adjustment reminding; if the current gear is not consistent with the target gear and the current accelerator pedal opening is consistent with the target accelerator pedal opening, only performing gear shifting reminding; and if the current gear is consistent with the target gear and the current accelerator pedal opening is inconsistent with the target accelerator pedal opening, only performing accelerator adjustment reminding. When reminding is carried out, whether a current gear is consistent with a target gear is judged, if not, gear shifting reminding is carried out, whether the current accelerator pedal opening is consistent with the target accelerator pedal opening is judged, and if not, accelerator adjustment reminding is carried out.
In the embodiment of the invention, gear shifting reminding and/or accelerator adjustment reminding are/is carried out through a vehicle instrument. Before carrying out shift reminding and/or throttle adjustment reminding, the method further comprises the following steps: if and only if the precondition is met, carrying out gear shifting reminding and/or throttle adjustment reminding, otherwise, not carrying out gear shifting reminding and/or throttle adjustment reminding; the precondition is that the vehicle has a tendency to continue to accelerate, the power of the vehicle does not decrease after the shift operation, and the engine speed is in a low fuel consumption region of the universal characteristic curve after the shift operation. When the precondition is satisfied, an ECU (Electronic Control Unit) sends a message containing a target gear and a target accelerator pedal opening degree to the instrument so as to perform gear shifting reminding and accelerator adjustment reminding on the instrument.
It should be noted that, during the shift reminding period, the current gear of the vehicle is acquired, and if the acquired current gear of the vehicle is consistent with the target gear, the shift reminding is stopped. And during the accelerator adjustment reminding period, acquiring the current accelerator pedal opening of the vehicle, and stopping the accelerator adjustment reminding if the acquired current accelerator pedal opening of the vehicle is consistent with the target accelerator pedal opening.
For the specific form of the shift reminder and the throttle adjustment reminder on the meter, see fig. 2. The gear is displayed in a digital mode, when the gear shifting reminding is triggered, the current gear is displayed in a large number mode, the target gear is displayed in a small number mode, the number size corresponding to the current gear is larger than the number size corresponding to the target gear, the number corresponding to the target gear is located above the number corresponding to the current gear, if the gear shifting reminding is conducted, namely when the target gear is larger than the current gear, a rising arrow is displayed between the current gear and the target gear, and if the target gear is smaller than the current gear, a falling arrow is displayed between the current gear and the target gear. In the gear shifting reminding process, numbers corresponding to the current gear and the target gear and an arrow between the current gear and the target gear flicker to remind a driver of corresponding gear shifting operation, and after the driver switches the gears according to reminding, a gear reminding interface disappears to finish reminding. For example, if the current gear is gear 5 and the target gear is gear 6, the number corresponding to the current gear is 5, the number corresponding to the target gear is 6, and the number 5 is greater than the number 6, and a rising arrow is displayed between the number 5 and the number 6.
When the accelerator adjustment reminding is triggered, displaying the current accelerator pedal opening in the center of the instrument in a form of a histogram, marking the target accelerator pedal opening in the histogram in a form of a transverse line, when a driver needs to be reminded of adding an accelerator, enabling the transverse line corresponding to the target accelerator pedal opening to be higher than the column corresponding to the current accelerator pedal opening, and displaying an upward arrow to remind the driver of adding the current accelerator to the target accelerator; when the driver needs to be reminded of reducing the accelerator, a cross line corresponding to the target accelerator pedal opening is lower than a column corresponding to the current accelerator pedal opening, a downward arrow appears to remind the driver of reducing the current accelerator to the target accelerator, and when the current accelerator pedal opening is equal to the target accelerator pedal opening, the cross line corresponding to the arrow and the target accelerator pedal opening disappears, and reminding is finished. For example, if the current accelerator pedal opening is 40% and the target accelerator pedal opening is 60%, the current accelerator pedal opening is displayed in the form of a bar graph, and the numeral 40% is displayed next to the bar graph, and a horizontal line corresponding to the target accelerator pedal opening is displayed on the bar graph, and the horizontal line is higher than the bar graph, and the numeral 60% is displayed next to the horizontal line, and an ascending arrow is displayed between the numerals 40% and 60%.
According to the invention, through reasonable calibration and theoretical calculation, the vehicle rotating speed is controlled in an economic region, the power performance is ensured, the fuel consumption can be reduced, the problem that most drivers are not good in gear shifting opportunity control is solved, the gear shifting mode obtained by experience is improved, good driving habits are convenient to cultivate, the whole vehicle working condition is managed through the ECU, the transportation quality is improved, and the transportation efficiency is improved.
According to the gear shifting reminding control method for the manual transmission gearbox of the commercial vehicle, disclosed by the embodiment of the invention, by establishing the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening, the target gear and the target accelerator pedal opening are obtained based on the current engine rotating speed, and considering the fuel economy of the engine, on the premise of ensuring the power, the driver is guided to control the engine within the economic rotating speed range through the gear shifting reminding and the accelerator adjustment reminding, the output effect of the engine is exerted to the maximum, the purposes of reducing the oil consumption and improving the vehicle power are achieved, and the driving behavior of the driver can be further standardized through the gear shifting reminding and the accelerator adjustment reminding.
Referring to fig. 3, the gear shifting reminding control system for the manual transmission gearbox of the commercial vehicle, provided by the embodiment of the invention, comprises a calculating module, an obtaining module, a determining module and a reminding module.
The calculation module is used for calculating and obtaining the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening degree on the premise of low oil consumption based on the vehicle working condition information; the acquisition module is used for acquiring the current engine speed of the vehicle in the running process of the vehicle; the determining module is used for determining a target gear and a target accelerator pedal opening degree according to the acquired engine rotating speed and on the basis of the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree; the reminding module is used for carrying out gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, and the current accelerator pedal opening and the target accelerator pedal opening. The vehicle working condition information comprises the speed ratio of each gear of the gearbox, the radius of a tire, the speed ratio of a drive axle and a universal characteristic curve.
The gear shifting reminding control system of the manual transmission gearbox of the commercial vehicle, provided by the embodiment of the invention, has the advantages that the gear shifting reminding and the accelerator adjusting reminding are used for guiding a driver to control the engine within an economic rotating speed range on the premise of ensuring the power from the consideration of the fuel economy of the engine, so that the aims of reducing the oil consumption and improving the vehicle power are fulfilled.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Claims (10)
1. A gear shifting reminding control method for a manual transmission gearbox of a commercial vehicle is characterized by comprising the following steps:
on the basis of the vehicle working condition information, calculating to obtain the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening degree on the premise of low oil consumption;
acquiring the current engine speed of a vehicle in the running process of the vehicle;
obtaining a target gear and a target accelerator pedal opening degree based on the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree according to the obtained engine rotating speed;
and performing gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, the current accelerator pedal opening and the target accelerator pedal opening.
2. The shifting reminding control method for the manual transmission gearbox of the commercial vehicle as claimed in claim 1, characterized in that: the vehicle working condition information comprises the speed ratio of each gear of the gearbox, the radius of a tire, the speed ratio of a drive axle and a universal characteristic curve.
3. The method for shift reminding control of a manual transmission gearbox of a commercial vehicle according to claim 2, wherein the corresponding relationship among the gears, the engine speed and the accelerator pedal opening under the premise of low oil consumption is obtained by calculation, and specifically comprises the following steps:
and calculating and storing the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening on the premise of low oil consumption according to the gear speed ratio of each gear of a gearbox of the vehicle, the tire radius, the drive axle speed ratio and the universal characteristic curve in a software simulation mode.
4. The shifting reminding control method for the manual transmission gearbox of the commercial vehicle as claimed in claim 1, characterized in that:
before carrying out shift reminding and/or throttle adjustment reminding, the method further comprises the following steps: if and only if the precondition is met, carrying out gear shifting reminding and/or throttle adjustment reminding, otherwise, not carrying out gear shifting reminding and/or throttle adjustment reminding;
the precondition is that the vehicle has a tendency to continue accelerating, the power of the vehicle is not reduced after the shift operation, and the engine speed is in a low fuel consumption region of the universal characteristic curve after the shift operation.
5. The shifting reminding control method for the manual transmission gearbox of the commercial vehicle as claimed in claim 1, characterized in that: and carrying out gear shifting reminding and/or throttle adjustment reminding through a vehicle instrument.
6. The shift reminding control method for the manual transmission gearbox of the commercial vehicle according to claim 1, wherein the shift reminding and/or the throttle adjustment reminding are performed based on the current gear and the target gear, the current throttle pedal opening and the target throttle pedal opening, and specifically:
when the current gear is inconsistent with the target gear, gear shifting reminding is carried out;
when the current gear is consistent with the target gear, no gear shifting reminding is performed;
when the opening degree of the current accelerator pedal is inconsistent with the target opening degree of the accelerator pedal, performing accelerator adjustment reminding;
and when the opening degree of the current accelerator pedal is consistent with the target opening degree of the accelerator pedal, no accelerator adjustment reminding is carried out.
7. The shifting reminding control method for the manual transmission gearbox of the commercial vehicle as claimed in claim 6, characterized in that:
and during the gear shifting reminding period, the current gear of the vehicle is obtained, and if the obtained current gear of the vehicle is consistent with the target gear, the gear shifting reminding is stopped.
8. The shifting reminding control method for the manual transmission gearbox of the commercial vehicle as claimed in claim 6, characterized in that:
and during the accelerator adjustment reminding period, acquiring the current accelerator pedal opening of the vehicle, and stopping the accelerator adjustment reminding if the acquired current accelerator pedal opening of the vehicle is consistent with the target accelerator pedal opening.
9. The utility model provides a commercial car manual gear gearbox warning control system that shifts which characterized in that includes:
the calculation module is used for calculating and obtaining the corresponding relation among the gears, the engine rotating speed and the accelerator pedal opening degree on the premise of low oil consumption based on the vehicle working condition information;
the acquisition module is used for acquiring the current engine speed of the vehicle in the running process of the vehicle;
the determining module is used for determining a target gear and a target accelerator pedal opening degree according to the acquired engine rotating speed and on the basis of the corresponding relation among the gear, the engine rotating speed and the accelerator pedal opening degree;
and the reminding module is used for carrying out gear shifting reminding and/or accelerator adjustment reminding based on the current gear and the target gear, and the current accelerator pedal opening and the target accelerator pedal opening.
10. The shift reminding control system for the manual transmission gearbox of the commercial vehicle as claimed in claim 9, characterized in that: the vehicle working condition information comprises the speed ratio of each gear of the gearbox, the radius of a tire, the speed ratio of a drive axle and a universal characteristic curve.
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| CN202011165256.XA CN112211997B (en) | 2020-10-27 | 2020-10-27 | Gear shifting reminding control method and system for manual transmission gearbox of commercial vehicle |
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| CN113007336A (en) * | 2021-02-18 | 2021-06-22 | 湖南行必达网联科技有限公司 | Automatic transmission downshift control method and device and working machine |
| CN113090754A (en) * | 2021-03-31 | 2021-07-09 | 潍柴动力股份有限公司 | Intelligent gear shifting prompting method and device for vehicle |
| CN113339494A (en) * | 2021-06-24 | 2021-09-03 | 上汽通用汽车有限公司 | Vehicle comfort prompting method and device and storage medium |
| CN114623230A (en) * | 2022-03-21 | 2022-06-14 | 潍柴动力股份有限公司 | Vehicle gear adjusting method, device and system and storage medium |
| CN114704637A (en) * | 2022-03-17 | 2022-07-05 | 潍柴动力股份有限公司 | Control method and device for AMT gearbox, storage medium and electronic equipment |
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