CN207093737U - Commercial car TR instruction device - Google Patents
Commercial car TR instruction device Download PDFInfo
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- CN207093737U CN207093737U CN201621329344.8U CN201621329344U CN207093737U CN 207093737 U CN207093737 U CN 207093737U CN 201621329344 U CN201621329344 U CN 201621329344U CN 207093737 U CN207093737 U CN 207093737U
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Abstract
The utility model discloses a kind of commercial car TR instruction device, including engine speed sensor, output shaft of gear-box speed probe, control stick front and back position sensor, gear display controller and multifunction instrument or external LED display, gear display controller synthesis rotating ratio, control stick gear position, clutch switch, neutral position switch, the signal progress gear logic judgment of reverse gear switch and stick position, judge the range state of current vehicle.The utility model passes through engine speed and the relative ratio of rotating speed of transmission shaft, calculating analysis is carried out with the gear coefficient set in advance, gear information can be accurately obtained, the structure of gearbox is not made any changes, the gear display controller and corresponding line and lever location sensitive switch and LED display provided by increasing the invention, it is possible to allow the vehicle of any a gearbox to be provided with the ability that repacking shows detailed gear.
Description
Technical field
A kind of commercial car TR instruction device is the utility model is related to, belongs to automobile gear level instruction device technology neck
Domain.
Background technology
At present, the gear of the most heavy truck of in the market has reached 16 grades, either AMT gearboxes or conventional transmission
Case, instrument generally only show tri- kinds of drive shift D, neutral N, reverse gear R gear informations, and display content is single, and gear value embodies endless
It is whole.Gear signal is provided by the gear selection position sensor in upper cover of speed changing box although also having, multiple sensors must be assembled, into
This height and reliability is low.
To allow, automobile gear level information is more directly perceived, more accurately supplies driver with reference to, it is necessary to by vehicle travel process
All gear informations show, the method for traditional increase gear position sensor, not only result in the complexity of gearbox designs, and
And obtained gear information often fails because of sensor fault.
The content of the invention
In view of the above-mentioned problems of the prior art, the utility model provides a kind of commercial car TR instruction dress
Put, by engine speed and the relative ratio of rotating speed of transmission shaft, calculating analysis is carried out with the gear coefficient set in advance, can
To be accurately obtained gear information, the structure of gearbox is not made any changes, the gear provided by increasing the invention is shown
Controller and corresponding line and lever location sensitive switch and LED display (or increase instrument CAN message content and aobvious
Show symbol), it is possible to allow the vehicle for equipping any a gearbox to be provided with the ability that repacking shows detailed gear.
To achieve these goals, a kind of commercial car TR instruction device that the utility model uses, including peace
For gathering the engine speed sensor of engine speed, at gearbox for gathering gearbox at transmitter
Before exporting the output shaft of gear-box speed probe of rotating speed, the control stick at control stick for gathering stick position
Position sensor, gear display controller and multifunction instrument or external LED display afterwards, the engine speed sensing
Device, output shaft of gear-box speed probe, control stick front and back position sensor will collect engine speed S1, gearbox respectively
Output rotating speed S2, control stick gear positional information S3 are sent to gear display controller；Gear display controller connects power supply,
And receive neutral position switch signal N, switching signal of reversing gear R, clutch switch signal S4；Gear display controller is to engine speed
S1 and output shaft of gear-box rotating speed S2 processing, obtain rotating ratio X1=S1/S2；Gear display controller integrates rotating ratio
X1, control stick gear positional information S3, clutch switch signal S4, neutral position switch signal N, switching signal of reversing gear R, control stick position
Put switch KD, stick position switch KR carries out gear logic judgment, judge the range state of current vehicle, and by rotating ratio X1
Contrasted with data storage, draw gear signal X2；Gear display controller by gear signal X2 by multifunction instrument or
The external LED display of person is shown, is referred to for driver.
The gear logic judgment of above-mentioned gear display controller is as follows：
1) when have neutral position switch signal N, without reverse gear switch signal R, without stick position switching signal KD, KR, then judge
For neutral N-state, outgoing message simultaneously shows N shelves；
2) there is neutral position switch signal N, have reverse gear switch signal R, outgoing message simultaneously shows R shelves；
3) without neutral position switch signal N, without reverse gear switch signal R, have stick position switching signal KD and KR, then be judged as
Driving gear D, driving speed of going forward side by side and engine speed contrast, determine whether ratio is constant, if non-constant, outgoing message is simultaneously shown
D shelves, if Ratio invariableness, into specific gear calculation process；
4) without neutral position switch signal N, without reverse gear switch signal R, without stick position switching signal KD and KR, then it is judged as
Driving gear D, driving speed of going forward side by side and engine speed contrast, determine whether ratio is constant, if non-constant, outgoing message is simultaneously shown
D shelves, if Ratio invariableness, into specific gear calculation process；
5) OFF signal N is stopped without neutral, OFF signal R is stopped without reverse gear, having stick position switching signal KD without KR, or
Have KR without stick position switching signal KD, then be normal forward gear D in shelves state, go forward side by side driving speed and engine speed pair
Than determining whether ratio is constant, if non-constant, outgoing message simultaneously shows D shelves, if Ratio invariableness, into specific gear
Calculation process；
6) stop OFF signal N without neutral, there is reverse gear to stop OFF signal R, have KR without stick position switching signal KD, then for
Normal reverse gear R simultaneously shows R shelves in shelves state, outgoing message；
7) OFF signal N stopped without neutral, there is reverse gear to stop OFF signal R, have stick position switching signal KD and KR, or nothing
KR, outgoing message simultaneously show R shelves.
The gear calculation process of the gear display controller is as follows：
1) gearbox-gear speed known to is than table parameter and total gear number, gearbox-gear design factor M, generator and engine
Rotating ratio W；
2) overgear judges number：It is most high-grade to be set as 1 for overgear, it is set as 0 for direct high；
3) it is each revolution of umber of pulse of generator to gather engine speed value S1=NW, N, or reads engine by CAN
Rotating speed message information；
4) rotating speed upper limit error amount S1+ and lower limit error amount S1- is changed；
5) gearbox vehicle speed sensor value S2 is gathered, or is read by CAN message；
6) vehicle speed sensor higher limit S2+ and lower limit S2- is calculated；
7) data group (S1, S1+, S1-) and (S2, S2+, S2-) are utilized, calculates fast ratio according to formula X1=S1/S2, and take
Higher limit X1+ and lower limit X1- and theoretical value X1；
8) according to formula E=Log (X1) * M, gear resulting number E, E+, E-, round are calculated；
9) gear calculation formula：Gear=gear number-(gear resulting number+overgear judges number)；
10) set stick position switch KD or KR close to the side person of odd number shelves have signal when as 1, otherwise for 0, verify
The actual-gear parity drawn and the uniformity of stick position switch KD or KR signal parities, verify and successfully then draw standard
True gear value simultaneously exports.
Compared with prior art, the utility model using engine speed sensor and output shaft of gear-box speed probe as
Reference, the two sensor signals, normal vehicle can all gather, so on signal acquisition, than install additional gear position sensor into
This is low, and signal stabilization is reliable.The ratio between meanwhile by engine speed and with gearbox rotating speed, with the gear system set in advance
Number carries out calculating analysis, can be accurately obtained gear information, the structure of gearbox is not made any changes, simple in construction, transformation
Cost is low, it is easy to accomplish.By increasing executor front and back position sensor, odd gear is installed and is set to odd number, another side shelves
Position is set as even number, by the gear of display, carries out odd even judged result, is verified with sensing station, double shield gear
Show accuracy.The utility model can also use the CAN message of engine and instrument to carry out data sampling, possess sensor and adopt
Sample and packet sampling are difunctional, and repacking is more flexible.By increasing gear display controller and the corresponding line that the invention is provided
Road and lever location sensitive switch and LED display, it is possible to allow the vehicle of any a gearbox to be provided with repacking display
The ability of detailed gear.In addition, the utility model is also equipped with fault alarm function, possess trouble and managing and CAN message transmission event
Hinder content function, can determine whether that gear fault type aids in Measuring error.
Brief description of the drawings
Fig. 1 is elementary diagram of the present utility model；
Fig. 2 is the utility model gear decision flow chart.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of commercial car TR instruction device, including be used to adopt at transmitter
Collect the engine speed sensor of engine speed, be used at gearbox to gather the gearbox of output shaft of gear-box rotating speed
OSS, it is used at control stick to gather control stick front and back position sensor, the gear of stick position
Display controller and multifunction instrument or external LED display, the engine speed sensor, output shaft of gear-box turn
Fast sensor, control stick front and back position sensor will collect engine speed S1, output shaft of gear-box rotating speed S2, manipulate respectively
Bar gear positional information S3 is sent to gear display controller；Gear display controller connects power supply, and receives neutral position switch letter
Number N, switching signal of reversing gear R, clutch switch signal S4；Gear display controller is to engine speed S1 and output shaft of gear-box
Rotating speed S2 processing, obtain rotating ratio X1=S1/S2；Gear display controller synthesis rotating ratio X1, control stick gear position
Information S3, clutch switch signal S4, neutral position switch signal N, switching signal of reversing gear R, stick position switch KD, control stick position
Put switch KR and carry out gear logic judgment, judge the range state of current vehicle, and rotating ratio X1 and data storage are carried out pair
Than drawing gear signal X2；Gear display controller shows gear signal X2 by multifunction instrument or external LED display
Show to come, referred to for driver.
Specifically as shown in figure 1, vehicle body CAN communication line that can be by gear display controller port C9, C10 or port
C11, C12 power CAN communication line are controlled program and the related data write-in of device, with reference to the gearbox shelves of vehicle to be reequiped
Digit and corresponding fast ratio, carry out overgear and judge parameter setting, complete the setting procedure such as relevant parameter demarcation.Then, end is passed through
Mouth C2 obtains the pulse signal (such as being usually the pulse of every turn of generator 6) that engine matches somebody with somebody generator, and inquiry generator is with sending out
For the revolution of motivation than W, tach signal (i.e. input shaft rotating speed) S1=6W of engine is tried to achieve in conversion, also can by port C11 with
C12 power CAN communication line reads the rotating speed message information of engine and directly used.Meanwhile speed change is obtained by port C3
Case exports rotating speed S2, and the gearbox umber of pulse message that instrument can be also read by port C9 and C10 vehicle body CAN communication line is believed
Cease and directly use.Obtaining executor gear positional information S3 by port C4 and C5, (such as reverse gear R is in forward position, then KR
Travel switch has signal and during KD travel switch no signal, and gear shift lever is in the gear of front side；Otherwise in certain of side rearward
In gear).Clutch switch feature S4 is obtained by port C13 (to be then operated for clutch pedal during without this signal, clutch
Device piece does not separate, and engine power can be transferred to gearbox, judges clutch working condition with this).Gear display controller
S1, S2 input signal are handled, and obtain rotating ratio signal X1=S1/S2；Then rotating ratio X1, control stick gear position are integrated
Information S3, clutch switch signal S4, neutral position switch signal N, switching signal of reversing gear R, stick position switch KD, control stick position
Put switch KR and carry out gear logic judgment, judge the range state of current vehicle, and rotating ratio X1 and data storage are carried out pair
Than drawing gear signal X2；Gear display controller shows gear signal X2 by multifunction instrument or external LED display
Show to come, referred to for driver.
The gear logic judging method of the gear display controller can be as follows：
1) when have neutral position switch signal N, without reverse gear switch signal R, without stick position switching signal KD, KR, then judge
For neutral N-state, outgoing message simultaneously shows N shelves；
2) there is neutral position switch signal N, have reverse gear switch signal R, outgoing message simultaneously shows R shelves；
3) without neutral position switch signal N, without reverse gear switch signal R, have stick position switching signal KD and KR, then be judged as
Driving gear D, driving speed of going forward side by side and engine speed contrast, determine whether ratio is constant, if non-constant, outgoing message is simultaneously shown
D shelves, if Ratio invariableness, into specific gear calculation process；
4) without neutral position switch signal N, without reverse gear switch signal R, without stick position switching signal KD and KR, then it is judged as
Driving gear D, driving speed of going forward side by side and engine speed contrast, determine whether ratio is constant, if non-constant, outgoing message is simultaneously shown
D shelves, if Ratio invariableness, into specific gear calculation process；
5) OFF signal N is stopped without neutral, OFF signal R is stopped without reverse gear, having stick position switching signal KD without KR, or
Have KR without stick position switching signal KD, then be normal forward gear D in shelves state, go forward side by side driving speed and engine speed pair
Than determining whether ratio is constant, if non-constant, outgoing message simultaneously shows D shelves, if Ratio invariableness, into specific gear
Calculation process；
6) stop OFF signal N without neutral, there is reverse gear to stop OFF signal R, have KR without stick position switching signal KD, then for
Normal reverse gear R simultaneously shows R shelves in shelves state, outgoing message；
7) OFF signal N stopped without neutral, there is reverse gear to stop OFF signal R, have stick position switching signal KD and KR, or nothing
KR, outgoing message simultaneously show R shelves.
The gear calculation process of the gear display controller is as follows：
1) gearbox-gear speed known to is than table parameter and total gear number, gearbox-gear design factor M, generator and engine
Rotating ratio W；
2) overgear judges number：It is most high-grade to be set as 1 for overgear, it is set as 0 for direct high；
3) it is each revolution of umber of pulse of generator to gather engine speed value S1=NW, N, or reads engine by CAN
Rotating speed message information；
4) rotating speed upper limit error amount S1+ and lower limit error amount S1- is changed；
5) gearbox vehicle speed sensor value S2 is gathered, or is read by CAN message；
6) vehicle speed sensor higher limit S2+ and lower limit S2- is calculated；
7) data group (S1, S1+, S1-) and (S2, S2+, S2-) are utilized, calculates fast ratio according to formula X1=S1/S2, and take
Higher limit X1+ and lower limit X1- and theoretical value X1；
8) according to formula E=Log (X1) * M, gear resulting number E, E+, E-, round are calculated；
9) gear calculation formula：Gear=gear number-(gear resulting number+overgear judges number)；
10) set stick position switch KD or KR close to the side person of odd number shelves have signal when as 1, otherwise for 0, verify
The actual-gear parity drawn and the uniformity of stick position switch KD or KR signal parities, verify and successfully then draw standard
True gear value simultaneously exports.
Embodiment：By taking 12 grades of casees of certain company as an example, gear ratios are listed as follows：
1st, its total gear number：12；
2nd, overgear judges：Most high-grade is direct high, and the parameter is 0；Overgear, the parameter are 1；
The 3rd, sensor is set on gearbox executor, it is 1 that odd number shelves, which have signal, and it is 0 that even numbers shelves, which have signal,；
The 4th, gearbox is arbitrarily chosen to one grade, it is assumed that be 7 grades.The signal that control stick front and back position sensor collects is 1；
5th, the gearbox-gear design factor：4.012；
6th, assume that engine collection tach signal is 1200rpm, signal acquisition has ± 3% error, by range of speeds border
1164rpm, 1236rpm include calculating；
7th, output shaft of gear-box collection rotating speed has ± 3% error, and range of speeds border 429rpm, 456 are included into calculating；
8th, the speed under various errors is calculated than 1164 ÷ 429=2.71,1236 ÷ 429=2.88,1164 ÷ 456=
2.55,1236 ÷ 456=2.71, obtain the fast ratio 2.88 of upper limit error, lower limit error speed ratio 2.55, and theoretical velocity ratio 2.71；
9th, gear number judges fixed number：Obtained fast ratio is taken the logarithm, is multiplied with gear design factor, and round
Number：
Log (2.71) * 4.012=4.00, integer is rounded up to as 4；
Log (2.88) * 4.012=4.24, integer is rounded up to as 4；
Log (2.55) * 4.012=3.76, integer is rounded up to as 4；
10th, gear calculation formula：Gear=gear number (12)-{ gear number judges that fixed number (4)+overgear judges number (1) }=7
11st, 7 grades are judged as 1. by odd even
12nd, the gear position sensor position of control stick front and back position sensor detection, single grade of signal are 1.
13rd, gear odd even judges consistent with gear signal, and verification is correct, output display gear 7.
In summary, the utility model is by gathering the engine speed and output shaft of gear-box that normal vehicle can all gather
Rotating speed, judge calculating parameter for gear, and both real-time speed is used for system-computed parameter, and by analyzing gear cloth
The gear design factor that office's rule obtains carries out calculating analysis, the gear information that can be accurately obtained.Two convectional signalses are adopted
Collection is compared with installing gear position sensor additional, and its cost is low, and signal stabilization is reliable；And without doing any change to the structure of gearbox
Become, it is simple in construction, improvement cost is low, it is easy to accomplish.Meanwhile to executor front and back position sensor, it is fixed that odd gear is installed
It is set as even number for odd number, another side gear, judges checking parameter as system successively.Then gear system-computed drawn
Carry out odd even judgement.The result that gear checking parameter and gear are judged with odd even, is contrasted, contrasts correct gear number
Value, is output to display module and shows, and sends in grade bus message, can be quoted for other systems.By the gear of display, carry out strange
Even judged result, is verified with sensing station, and double shield gear shows accuracy.The utility model can also use hair
The CAN message of motivation and instrument carries out data sampling, possesses sensor sample and packet sampling is difunctional, and repacking is more flexible.It is logical
Crossing increases gear display controller and corresponding line and lever location sensitive switch that the invention provided and LED is shown
Screen, it is possible to allow the vehicle of any a gearbox to be provided with the ability that repacking shows detailed gear.
Claims (1)
1. a kind of commercial car TR instruction device, it is characterised in that including starting at transmitter for collection
The engine speed sensor of machine rotating speed, it is used at gearbox to gather the output shaft of gear-box of output shaft of gear-box rotating speed
Speed probe, at control stick be used for gather stick position control stick front and back position sensor, gear display control
Device and multifunction instrument processed or external LED display, the engine speed sensor, output shaft of gear-box revolution speed sensing
Device, control stick front and back position sensor will collect engine speed S1, output shaft of gear-box rotating speed S2, control stick gear respectively
Positional information S3 is sent to gear display controller；Gear display controller connects power supply, and receives neutral position switch signal N, falls
Stop OFF signal R, clutch switch signal S4；
Gear display controller obtains rotating ratio X1=to engine speed S1 and output shaft of gear-box rotating speed S2 processing
S1/S2；Gear display controller synthesis rotating ratio X1, control stick gear positional information S3, clutch switch signal S4, neutral are opened
OFF signal N, switching signal of reversing gear R, stick position switch KD, stick position switch KR carry out gear logic judgment, judge
The range state of vehicle at present, and rotating ratio X1 is contrasted with data storage, draw gear signal X2；Gear display control
Device shows gear signal X2 by multifunction instrument or external LED display, is referred to for driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329344.8U CN207093737U (en) | 2016-12-06 | 2016-12-06 | Commercial car TR instruction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329344.8U CN207093737U (en) | 2016-12-06 | 2016-12-06 | Commercial car TR instruction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093737U true CN207093737U (en) | 2018-03-13 |
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ID=61546538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621329344.8U Active CN207093737U (en) | 2016-12-06 | 2016-12-06 | Commercial car TR instruction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460331A (en) * | 2022-04-11 | 2022-05-10 | 盛瑞传动股份有限公司 | Fault determination method and device, electronic equipment and storage medium |
| CN114526331A (en) * | 2021-12-20 | 2022-05-24 | 陕西法士特齿轮有限责任公司 | Device and method for transmitting neutral-reverse gear signal |
-
2016
- 2016-12-06 CN CN201621329344.8U patent/CN207093737U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526331A (en) * | 2021-12-20 | 2022-05-24 | 陕西法士特齿轮有限责任公司 | Device and method for transmitting neutral-reverse gear signal |
| CN114460331A (en) * | 2022-04-11 | 2022-05-10 | 盛瑞传动股份有限公司 | Fault determination method and device, electronic equipment and storage medium |
| CN114460331B (en) * | 2022-04-11 | 2022-08-02 | 盛瑞传动股份有限公司 | Fault determination method and device, electronic equipment and storage medium |
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