CN112061052A - Gear detection method and system - Google Patents
Gear detection method and system Download PDFInfo
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- CN112061052A CN112061052A CN201910497131.8A CN201910497131A CN112061052A CN 112061052 A CN112061052 A CN 112061052A CN 201910497131 A CN201910497131 A CN 201910497131A CN 112061052 A CN112061052 A CN 112061052A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a gear detection method and a system, wherein the gear detection method comprises the following steps: the method comprises the steps of collecting engine information, inputting tire parameter information, obtaining tire diameter parameters according to the tire parameter information, obtaining gear transmission ratios according to the tire diameter parameters, the tire parameter information and the engine information, and obtaining and outputting gear information according to the gear transmission ratios and the engine information. The gear detection method disclosed by the invention is simple in calculation, more accurate in gear judgment of driving test, low in misjudgment rate and capable of improving test efficiency and accuracy. The gear detection system comprises an engine information collector, a tire parameter information input device, a calculator and an output device, wherein the calculator comprises an embedded system gear detection mainboard chip, so that the hardware structure of the gear detection system is simple, the cost is low, and the structure is simple.
Description
Technical Field
The invention relates to the field of gear detection in motor vehicle driving school examinations, in particular to a gear detection method and a gear detection system.
Background
At present, in a three-road examination project of a driving examination subject of a motor vehicle, gear shifting operation is an important examination content on whether the driving technology of a student is qualified or not and whether a driving license can be obtained or not, so that the gear detection requirement on an examination vehicle is high, and unfairness of the student caused by errors is avoided.
In the prior art, the gear detection method is complex in calculation and hardware structure, the gear evaluation accuracy of the driving test is low, the misjudgment rate is high, and the test efficiency and accuracy are reduced, so that the improvement is urgently needed.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a gear detection method and system, which are used to solve the problems that the gear detection method in the prior art is complex in calculation, complex in hardware structure, low in gear evaluation accuracy of driving test, high in false positive rate, and low in test efficiency and accuracy.
In order to achieve the above and other related objects, the present invention provides a gear detection method, including:
collecting engine information;
inputting tire parameter information;
obtaining a tire diameter parameter according to the tire parameter information;
obtaining a gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information;
and obtaining and outputting gear information according to the gear transmission ratio and the engine information.
In an embodiment of the present invention, the engine information includes an engine speed signal, an engine speed per hour signal, and a clutch signal.
In an embodiment of the invention, the tire parameter information comprises tread width, aspect ratio, hub diameter, main transmission ratio.
In an embodiment of the present invention, the obtaining the tire diameter parameter according to the tire parameter information includes:
the formula of the tire diameter parameter is as follows: d ═ L × f × 2+ D × 25.4
Where D represents a tire diameter parameter, L represents a tread width, f represents a aspect ratio, and D represents a hub diameter.
In one embodiment of the present invention, the first and second electrodes are,
in an embodiment of the present invention, the obtaining the gear transmission ratio according to the tire diameter parameter, the tire parameter information, and the engine information includes:
the formula of the gear transmission ratio is as follows:
where S represents the gear ratio, r represents the engine speed signal, S represents the main ratio, and V represents the engine speed per hour signal.
In an embodiment of the present invention, the obtaining and outputting gear information according to the gear transmission ratio and the engine information includes:
obtaining gear information according to the gear transmission ratio and the clutch signal;
and outputting the gear information.
In order to achieve the above object, the present invention further provides a gear detection system, including:
the engine information collector is used for collecting engine information;
a tire parameter information input unit for inputting tire parameter information;
the calculator is used for obtaining a tire diameter parameter according to the tire parameter information, obtaining a gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information, and obtaining gear information according to the gear transmission ratio and the clutch signal;
and the output device is used for outputting the gear information.
In one embodiment of the invention, the engine information collector comprises an engine rotating speed signal collecting port, an engine speed signal collecting port and a clutch signal collecting port; the tire parameter information input device comprises a tread width input key, a flat ratio input key, a hub diameter input key and a main transmission ratio input key.
In an embodiment of the present invention, the calculator includes an embedded system gear detection motherboard chip.
In an embodiment of the invention, the output device includes a serial port.
As described above, the gear detection method and system of the present invention have the following beneficial effects:
the gear detection method comprises the steps of collecting engine information, inputting tire parameter information, obtaining tire diameter parameters according to the tire parameter information, obtaining gear transmission ratios according to the tire diameter parameters, the tire parameter information and the engine information, and obtaining and outputting gear information according to the gear transmission ratios and the engine information. The gear detection method disclosed by the invention is simple in calculation, more accurate in gear judgment of driving test, low in misjudgment rate and capable of improving test efficiency and accuracy.
The gear detection system comprises an engine information collector, a tire parameter information input device, a calculator and an output device, wherein the calculator comprises an embedded system gear detection mainboard chip, so that the hardware structure of the gear detection system is simple, the cost is low, and the structure is simple.
Drawings
Fig. 1 is a flowchart illustrating a method for detecting a gear according to an embodiment of the present disclosure;
FIG. 2 is a flowchart illustrating a method for detecting a gear according to the gear ratio and engine information to obtain and output gear information;
fig. 3 is a block diagram of a gear detection system according to an embodiment of the present disclosure;
fig. 4 is a block diagram of an engine information collector of a gear detection system according to an embodiment of the present disclosure;
fig. 5 is a block diagram of a tire parameter information input unit of a gear detection system according to an embodiment of the present disclosure.
Description of the element reference numerals
10 engine information collector
20 tyre parameter information input device
30 calculator
40 output device
11 engine speed signal acquisition port
12 speed signal acquisition port of engine
13 on-off signal acquisition port
21 Tread width input key
22 aspect ratio input key
23 wheel hub diameter input key
24 Main Transmission ratio input Key
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, fig. 1 is a working flow chart of a gear detection method according to an embodiment of the present application, and the gear detection method includes:
and S1, collecting engine information.
And S2, inputting tire parameter information.
And S3, obtaining the tire diameter parameter according to the tire parameter information.
And S4, obtaining the gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information.
And S5, obtaining and outputting gear information according to the gear transmission ratio and the engine information.
Specifically, the engine information includes, but is not limited to, an engine speed signal, an engine speed per hour signal, and a clutch signal.
The unit of the engine speed signal can be rpm; the unit of the engine speed per hour signal can be km/h.
The clutch signal is as follows: when the clutch is stepped, the clutch signal is output, and the clutch signal can be acquired; when the clutch is not stepped, the clutch signal cannot be acquired without outputting the clutch signal.
Specifically, the tire parameter information comprises tread width, aspect ratio, hub diameter and main transmission ratio.
Wherein the tread width is a width of a contact surface between the tire and the solid.
The flat ratio is a data index of the tire, and means the percentage of the cross section height of the tire to the maximum width of the cross section.
The diameter of the hub is the diameter of a cylindrical metal part which is arranged on a shaft at the center and used for supporting the tire by the inner contour of the tire, and the unit can be mm.
The main transmission ratio is the speed ratio.
Specifically, the obtaining of the tire diameter parameter according to the tire parameter information includes:
the formula of the tire diameter parameter is as follows: d ═ L × f × 2+ D × 25.4
Where D represents a tire diameter parameter, L represents a tread width, f represents a aspect ratio, and D represents a hub diameter.
Specifically, the tire diameter parameter is calculated by a formula, and the tire diameter parameter is calculated by the formula of the tire diameter parameter because the diameters of tires of different models are different and some diameters of the tires cannot be measured.
The obtaining of the gear transmission ratio according to the tire diameter parameter, the tire parameter information, and the engine information includes:
the formula of the gear transmission ratio is as follows:
where S represents the gear ratio, r represents the engine speed signal, S represents the main ratio, and V represents the engine speed per hour signal.
Specifically, the parameters of the engine speed signal r, the engine speed per hour signal V and the clutch signal are acquired by sensors.
Specifically, parameters of the tread width L, the aspect ratio f, the hub diameter d and the main transmission ratio S are obtained through input of an input key.
Specifically, referring to fig. 2, fig. 2 is a working flow chart of a gear detection method according to the gear transmission ratio and engine information to obtain and output gear information according to the gear transmission ratio and the engine information provided in the embodiment of the present application, where the obtaining and outputting gear information according to the gear transmission ratio and the engine information includes:
and S51, obtaining gear information according to the gear transmission ratio and the clutch signal.
And S52, outputting the gear information.
Specifically, in step S51, gear information is obtained according to the clutch signal acquired by the sensor, that is, whether there is a clutch signal output, and by combining the gear transmission ratio.
In step S52, the shift position information is output, and the output shift position information may be transmitted to the industrial personal computer.
Referring to fig. 3, fig. 3 is a block diagram of a gear detecting system according to an embodiment of the present invention, which is similar to the principle of the embodiment of the method, and the present invention provides a gear detecting system including an engine information collector 10, a tire parameter information input device 20, a calculator 30, and an output device 40, wherein,
an engine information collector 10 for collecting engine information;
a tire parameter information input unit 20 for inputting tire parameter information;
the calculator 30 is used for obtaining the tire diameter parameter according to the tire parameter information, obtaining the gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information, and obtaining the gear information according to the gear transmission ratio and the clutch signal;
and an output device 40 for outputting the gear information.
Specifically, the engine information collector 10 and the tire parameter information input device 20 are electrically connected to the calculator 30, and the calculator 30 is electrically connected to the output device 40.
The output device 40 can be electrically connected with an industrial personal computer.
Referring to fig. 4, fig. 4 is a block diagram of a gear detecting system according to an embodiment of the present disclosure, in which the engine information collector 10 includes an engine speed signal collecting port 11, an engine speed signal collecting port 12, and a clutch signal collecting port 13.
Specifically, the engine speed signal acquisition port 11, the engine speed signal acquisition port 12, and the clutch signal acquisition port 13 are electrically connected to the calculator 30.
Specifically, the engine speed signal acquisition port 11, the engine speed signal acquisition port 12 and the clutch signal acquisition port 13 are connected with sensors, and the sensors acquire an engine speed signal, an engine speed signal and a clutch signal and respectively send the engine speed signal, the engine speed signal and the clutch signal to the engine speed signal acquisition port 11, the engine speed signal acquisition port 12 and the clutch signal acquisition port 13.
Referring to fig. 5, fig. 5 is a block diagram of a tire parameter information input device of a gear detecting system according to an embodiment of the present disclosure, where the tire parameter information input device 20 includes a tread width input button 21, a aspect ratio input button 22, a hub diameter input button 23, and a main transmission ratio input button 24.
Specifically, the tread width input button 21, the aspect ratio input button 22, the hub diameter input button 23, and the main transmission ratio input button 24 are electrically connected to the calculator 30.
Specifically, the corresponding parameter information of the tread width, the flat ratio, the hub diameter and the main transmission ratio is respectively input through the tread width input key 21, the flat ratio input key 22, the hub diameter input key 23 and the main transmission ratio input key 24.
Specifically, the calculator 30 includes an embedded system gear detection motherboard chip.
The model of the embedded system gear detection main board chip is STM32F103VB, wherein tire diameter parameters, gear transmission ratio and gear information are calculated in the STM32F103VB chip.
Specifically, the output device 40 includes a serial port.
The output device 40 may be an RS232 serial port.
Specifically, referring to fig. 1 to 5, the working process of a gear detecting system is as follows:
the gear detection system respectively collects an engine rotating speed signal, an engine speed signal and a clutch signal through a sensor, respectively sends the engine rotating speed signal, the engine speed signal and the clutch signal to an engine rotating speed signal collecting port 11, an engine speed signal collecting port 12 and a clutch signal collecting port 13, respectively inputs the tread width, the flat ratio, the hub diameter and the main transmission ratio through a tread width input key 21, a flat ratio input key 22, a hub diameter input key 23 and a main transmission ratio input key 24, the STM32F103VB chip obtains a tire diameter parameter D according to the tread width L, the flat ratio F and the hub diameter D, the STM32F103VB chip obtains a gear transmission ratio S according to an engine rotating speed signal r, a main transmission ratio S, an engine speed signal V and the tire diameter parameter D, and the STM32F103VB chip finally obtains the gear transmission ratio S and the engine information, namely the clutch signal, and obtaining gear information, and outputting the gear information through an RS232 serial port.
In summary, the gear detection method of the present invention includes acquiring engine information, inputting tire parameter information, obtaining a tire diameter parameter according to the tire parameter information, obtaining a gear transmission ratio according to the tire diameter parameter, the tire parameter information, and the engine information, and obtaining and outputting gear information according to the gear transmission ratio and the engine information. The gear detection method disclosed by the invention is simple in calculation, more accurate in gear judgment of driving test, low in misjudgment rate and capable of improving test efficiency and accuracy.
The gear detection system comprises an engine information collector 10, a tire parameter information input device 20, a calculator 30 and an output device 40, wherein the calculator 30 comprises an embedded system gear detection mainboard chip, so that the hardware structure of the gear detection system is simple, the cost is low, and the structure is simple.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A gear detection method is characterized by comprising the following steps:
collecting engine information;
inputting tire parameter information;
obtaining a tire diameter parameter according to the tire parameter information;
obtaining a gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information;
and obtaining and outputting gear information according to the gear transmission ratio and the engine information.
2. The gear detection method according to claim 1, characterized in that: the engine information comprises an engine rotating speed signal, an engine speed per hour signal and a clutch signal.
3. The gear detection method according to claim 2, characterized in that: the tire parameter information comprises tread width, aspect ratio, hub diameter, and main drive ratio.
4. The gear detection method according to claim 3, wherein the obtaining of the tire diameter parameter according to the tire parameter information comprises:
the formula of the tire diameter parameter is as follows: d ═ L × f × 2+ D × 25.4
Where D represents a tire diameter parameter, L represents a tread width, f represents a aspect ratio, and D represents a hub diameter.
5. The gear detection method according to claim 4, wherein the obtaining of the gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information comprises:
the formula of the gear transmission ratio is as follows:
where S represents the gear ratio, r represents the engine speed signal, S represents the main ratio, and V represents the engine speed per hour signal.
6. The gear detection method according to claim 5, wherein the obtaining and outputting gear information based on the gear transmission ratio and engine information comprises:
obtaining gear information according to the gear transmission ratio and the clutch signal;
and outputting the gear information.
7. A gear detection system is characterized in that: the gear detection system comprises an engine information collector, a tire parameter information input device, a calculator and an output device, wherein,
the engine information collector is used for collecting engine information;
a tire parameter information input unit for inputting tire parameter information;
the calculator is used for obtaining a tire diameter parameter according to the tire parameter information, obtaining a gear transmission ratio according to the tire diameter parameter, the tire parameter information and the engine information, and obtaining gear information according to the gear transmission ratio and the clutch signal;
and the output device is used for outputting the gear information.
8. The gear detection system according to claim 7, wherein: the engine information collector comprises an engine rotating speed signal collecting port, an engine speed signal collecting port and a clutch signal collecting port; the tire parameter information input device comprises a tread width input key, a flat ratio input key, a hub diameter input key and a main transmission ratio input key.
9. The gear detection system according to claim 8, wherein: the calculator comprises an embedded system gear detection main board chip.
10. The gear detection system according to claim 9, wherein: the output device comprises a serial port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910497131.8A CN112061052A (en) | 2019-06-10 | 2019-06-10 | Gear detection method and system |
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|---|---|---|---|
| CN201910497131.8A CN112061052A (en) | 2019-06-10 | 2019-06-10 | Gear detection method and system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870279A (en) * | 2010-03-10 | 2010-10-27 | 重庆长安汽车股份有限公司 | Method for gear information display and gear shift prompt of hybrid electric vehicle |
| CN103213544A (en) * | 2012-01-20 | 2013-07-24 | 厦门金龙联合汽车工业有限公司 | Determination system and method of economic driving gear of engine driven vehicle |
| CN106704573A (en) * | 2016-12-13 | 2017-05-24 | 北京汇通天下物联科技有限公司 | Vehicle state judging method, device and system based on vehicle gear |
| CN109372643A (en) * | 2018-12-05 | 2019-02-22 | 东风柳州汽车有限公司 | The modification method of engine flywheel end torque under vehicle climbing mode |
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2019
- 2019-06-10 CN CN201910497131.8A patent/CN112061052A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870279A (en) * | 2010-03-10 | 2010-10-27 | 重庆长安汽车股份有限公司 | Method for gear information display and gear shift prompt of hybrid electric vehicle |
| CN103213544A (en) * | 2012-01-20 | 2013-07-24 | 厦门金龙联合汽车工业有限公司 | Determination system and method of economic driving gear of engine driven vehicle |
| CN106704573A (en) * | 2016-12-13 | 2017-05-24 | 北京汇通天下物联科技有限公司 | Vehicle state judging method, device and system based on vehicle gear |
| CN109372643A (en) * | 2018-12-05 | 2019-02-22 | 东风柳州汽车有限公司 | The modification method of engine flywheel end torque under vehicle climbing mode |
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Application publication date: 20201211 |