CN86108239A - Vehicle autometer with acceleration and deceleration indicating device - Google Patents

Vehicle autometer with acceleration and deceleration indicating device Download PDF

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Publication number
CN86108239A
CN86108239A CN198686108239A CN86108239A CN86108239A CN 86108239 A CN86108239 A CN 86108239A CN 198686108239 A CN198686108239 A CN 198686108239A CN 86108239 A CN86108239 A CN 86108239A CN 86108239 A CN86108239 A CN 86108239A
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China
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mentioned
acceleration
speed
vehicle
time interval
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CN198686108239A
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扎克·鲁塞尔
肯特·索尔伯格
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STEAM CO
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STEAM CO
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Measured Values (AREA)
  • Instrument Panels (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Be applicable to the velocity of electrons/accelerometer of oversize vehicle, characteristics are that a transparent reflection is arranged, the demonstration of bias light irradiation.On any speed, rate of change is outstanding obviously, and indication is seen clearly easily, can provide at once information to the operator.Display is equipped with the device that shows the velocity information of crossing through digitized processing with analog form.The calculating of car speed, acceleration and/or retarded velocity is adopting a microprocessor speed to be sampled and averaged and realize at interval a regular time on the continuous basis.Above-mentioned time interval long enough is to prevent to show shake or " beating ".By microprocessor is tested with relevant digital unit, on display device, can indicate failure condition.

Description

Vehicle autometer with acceleration and deceleration indicating device
The application's reference paper:
United States Patent (USP) the 3rd, 525,044,3; 699,563 and 3,864; No. 731, the wherein open and claimed digital speed indicator and the technology of register, record, measurement and indication oversize vehicle speed have transferred the same assignee identical with the application with method.In the present specification with reference to the instructions and the claim of these patents.
The present invention relates to locomotive, ground operation traction engine and the speed of other oversize vehicle and the measurement of acceleration, more particularly, the speed of the vehicle that the present invention relates to innovate and the measurement of acceleration are determined and demonstration, and utilize digital technology generation simulation to show.
The speed that the equipment utilization inside that the application is disclosed and claimed and these two kinds of light sources are realized vehicle and the simulated environment numeral of acceleration show.
The digital velometer of prior art (can consult the United States Patent (USP) 3,525,044 and 3,699,563 in the above-mentioned list of references) is equipped with old-fashioned demonstration, the time some shortcoming can occur in work, sometimes or even important disadvantages.In the velometer of some other type, this class shortcoming comprises that digital type is little, and display light is dark and can not utilize surround lighting to improve display brightness.
Numeric display unit commonly used now has the perhaps the most formidable shortcoming, that is, can not discern by figure.It is generally acknowledged that simulation demonstration institute information transmitted is discerned with less notice by vehicle drivers easily.Yet digital technology is difficult to help simulation to show.In addition, though digital technology at definite higher-order function, during as acceleration, is very easily, also do not have a kind of like this device so far, it can the speed of simulation and acceleration shows and digital signal processing combines.Such demonstration has very valuable help for vehicle drivers when adding traction power braking and fail.
Therefore, the objective of the invention is for oversize vehicle provides a kind of speed indication and measuring equipment, and it shows to have analog feature basically.
Further purpose of the present invention provides a kind of like this speed indication and measurement mechanism, and this device can come the vividness of enhancing speed indication by means of brighter ambient lighting.
Another object of the present invention provides a kind of like this speed indicating device, and what this device comprised vehicle acceleration is the indication of simulation basically.
A further object of the present invention is to provide a kind of like this speed indication and measurement mechanism to oversize vehicle, and this device Applied Digital technology is simulated demonstration.
Another object of the present invention provides a kind of like this car speed indicating device, and this device can start test, when equipment malfunction, can give the vision that is out of order indication.
Another object of the present invention provides a kind of like this car speed indicating device, and this device has in check access device, is used for importing and regulating the speed of decision vehicle parameter.
A further object of the present invention is that the adjustment to speed indicator provides and maintains secrecy and reliably near approach, thereby improves the reliability of equipment greatly.
A kind of vehicle autometer, this velometer relies on one to be carried out work by the pulse producer of vehicle traction, be equipped with in the velometer with simulation and be shown as main car speed and acceleration/deceleration display, this display also comprises following two kinds of mechanisms: the one, and complementary digital accurate reading mechanism (being used to read the analog rate displayed value), the 2nd, comprise the liquid crystal display of the transparent reflection (transflective) of all indications.Transparent reflection characteristic when having stronger ambient light to exist, can improve the brightness that shows.
The digital technology that realizes by microprocessor be used to by at accurate predetermined time interval to from spindle nose, i.e. the pulse of shaft-driven pulse producer counts measuring speed.In the predetermined sampling period, the velocity amplitude that records is in order stored away, and is used for determining the acceleration of vehicle.
The new method of measurement and display speed and acceleration is to utilize double at least velocity survey and in addition average with the sampling time, and this sampling time slightly is longer than two times that specific speed is required of determining.So be, be determined at the velocity contrast in the whole given interval, calculate average acceleration.The demonstration utilization of acceleration meets the metrological correct form of human engineering, and wherein the rate variation of acceleration and retarded velocity increases size and/or reduces size with vertical bar and represents.
Typically way is, in the left hand part of velocity indicator, retarded velocity is to represent with reducing the vertical bar size, and at the display right hand partly, acceleration is to represent with increasing the vertical bar size.
The content of mixed display comprises speed, acceleration and/or retarded velocity.Its simulation display mode makes vehicle drivers to grasp maximum information in of short duration moment.As everyone knows, simulation shows that the value of represented figure representative can be identified soon, thus the measure that can discern any abnormal indication rapidly and take to remedy.
The visual observation test that vehicle drivers can be carried out at any time, a predetermined demonstration that indication equipment is working properly can be provided, the work of perhaps finding is undesired and take the parking means, this just makes the driver go and find out what's going in advance, thereby place under repair or utilize the method for other measuring speed, the user also can carry out initial calibration and adjusting to factor related in speed and the acceleration analysis (as the diameter of vehicle).Use drives the concealed switch by a permanent magnet of outside, can limit common people and arbitrarily carry out unnecessary adjusting and calibration.
Fig. 1 represents functional-block diagram of the present invention, and the path that the signal/power supply of main system unit is flowed through is shown especially.
Fig. 2 and 2a are the planimetric maps partly that shows of the present invention, wherein show analog scaling and pointer especially, and with the numeral indication of the represented speed of simulated pointer, acceleration and/or retarded velocity during driving are indicated with show bar.
Fig. 3 (1 page to 14 pages) is a workflow diagram of speed indicator of the present invention and display system, wherein show the microprocessor function especially, with the work that has comprised the speed indicator measuring system, the diagnostic characteristic of the system that test/calibration function that the user starts and driver start.
Fig. 4 is curve and the algebraic specification figure that measures acceleration with the principle of the invention.
Fig. 5 is a stereographic map of velometer indicator and electronic shield shell.The part of cutting open is represented the position of test/by-pass cock that magnetic drives.
When above-mentioned speed indicator is described to a preferable embodiment, should be understood that the applicant does not really want disclosed the present invention is limited only within this particular embodiment.On the contrary, applicant's purpose be to comprise the substitute product of the speed indicator that might comprise, remodeling product and equivalent product are if these products relate to the spirit and scope of the present invention of following claim defined.
With reference to Fig. 1 and installation drawing 2.At United States Patent (USP) 3,566, in the open and claimed velometer, rotation input shaft type axle for vehicle 7 drives spindle nose pulse producer 6 in 169.The proportional electric pulse of rotational speed of repetition frequency and input turning axle 7, processed in wave filter 8, and be sent to for example Intel 80351 of microprocessor 10() a suitable input end on.The power supply of microprocessor is provided by power supply 4, power supply 4 is returned display driver 16 operating voltage is provided, the electroluminescence part 18 of this driver drives display 14, after the suitable operation of paired pulses input carrying out of the present invention, microprocessor 10 provides display message for liquid crystal display driver 12 with digital form.Provide the work of correct display message about microprocessor 10, will be further described below below.LCD driver is further adjusted the output of microprocessor, so that the indication (with reference to figure 2 and 2a) of speed and acceleration is provided on display 14 with analog-and digital-two kinds of forms.The combination that should be noted that LCD 14 and electroluminescent panel 18 shows the background that comprises a transparent reflection (translectctive).The characteristic of transparent reflection can be strengthened the video of watching on display screen 14, and this display screen 14 was both also used the EL radiation with ambient light.
Further consult Fig. 2,2a and 5, the demonstration of display 14 partly is a figure 30(or 40), it comprises indicating bar or the pointer 32 that a paranorm is intended, and this pointer moves along the garden circular path, and this path and speed indication circular scale 34 are diametrically in correspondence with each other.
Electroluminescent display is installed in the housing 3, latent magnetic switch 20 and the 22(that keeps away also is housed in this housing consults Fig. 5).These switch activated microprocessor work are regulated the vehicle operation parameter respectively and are checked velometer work (consulting " TEST ALL ", " the INITIAL EDGE " and " TEST EDGE " of the 3rd page of Fig. 3).
The principal velocity calibration of annular scale adopts the indication of arithmetic formula, and unit is a miles per hour, can certainly show kilometer/hour.Typical annular scale comprises 100 scales.44 in the middle and lower part of display 30, the complementary digital speed indicated value in the middle of it demonstrates and is positioned at, and this velocity amplitude is meant the numerical value by pointer 32 and scale 39 combination expressions.Numeral speed indication 44 velocity ranges that comprise are by zero to 99.99 miles per hours, or (if desired) corresponding kilometer/hour.
On the upper left corner of display 30, there is the formation of the section (perhaps being called bar) 36 of some perpendicular to be trapezoidal figure basically.Each 38 has identical width, but it highly from left to right has nothing in common with each other.According to principle of the present invention, display 36 is the indications of acceleration, is also referred to as the retarded velocity indication sometimes, its unit miles per hour second.（MPH/sec）。As shown in the figure, 10 vertical bars are highly represented to slow down from left to right to lower gradually.As scheme institute and give, the retarded velocity of leftmost expression miles per hour second, and the retarded velocity of 0.25 miles per hour second of rightmost expression.Some middle bars represent 4,3, the retarded velocity of 2,5,2.0,1.5,1.0,0.75 and 0.5 miles per hour second.Be proficient in this professional people, will understand the combination of other retarded velocity soon, that is, also can get up the size combinations of numerical value and/or bar.Therefore the vision indication that Fig. 2 provided is to be per hour 30 miles the instantaneous velocity of 0.75 miles per hour second in the rate of deceleration.Should be noted that, be that the subtle change brief accelerations of 0.75 miles per hour second and 0.75 or 1.0 miles per hour seconds shows more stable in indicated value, not shake or " beating ".
Display graphics 40 shown in Fig. 2 a is described out the situation opposite with Fig. 2, that is, demonstration be that speed per hour is the vehicle acceleration of 30 miles per hours.As in the retarded velocity figure, an acceleration figure 41 is represented acceleration by bar 42.The dotted line of the position of expression acceleration bar 42 or line are the acceleration of typical 1.0 miles per hour seconds among the figure, and the peak acceleration bar of the back part of figure is the acceleration of typical 5.5 miles per hour seconds.Be proficient in this professional people and will understand soon that accekeration and deceleration value need be regulated, so that adapt to the vehicle of different sizes and different capacity.The numerical value that is reacted in the present embodiment is the situation that is applicable to diesel locomotive, the accurate lorry of electric locomotive traction 100 feast-brand marks.
Consult Fig. 3 and 4, determine the method for acceleration,, relate to and utilize two continuous velocity amplitudes as preceding detailed description.As shown in the figure, after a demonstration and meeting some other functional reduction of microprocessor described in detail among Fig. 3, " the CALC SPEED " that two complete cycles 52 of a timer measuring in the microprocessor 10 and 53(consult the 3rd page of Fig. 3).The time in each tested week is recorded in the 1st speed that is used for determining the indication of 52 places in the microprocessor.Should be noted that each complete cycle is to be determined by the zero crossing of crossover voltage 50, the frequency of this voltage 50 is produced by axle head generator 6.
Similarly, shown in 56, the 2nd speed 53 is to determine by two required times of complete cycle of measuring pulse generation voltage 50.
From the vehicle acceleration of the 1st speed in the 53 needed times of 52 to the 2nd speed, its computing method (are consulted the 3rd page, " AD " of Fig. 3) shown in 57.Should be noted that comprehensively the determining of acceleration comprises a variable or speed increment ratio, is △ t here 2(55).A similar time increment △ t 1(54) be used to determine speed 1(52).The acceleration of measurement or definite vehicle in microprocessor, shown in 57, here use the computing method of denotational description acceleration, carry out acceleration analysis in mode disclosed herein, basically do not beat, have stable accekeration in other words, reason is to contain the quiescent interval between continuous vehicle speed measurement, and promptly △ t(consults Fig. 3 C).
Further consult Fig. 3, the information that the continuous pulse that is located in generation in the reason spindle nose generator 6 of internal calculation machine speed provides and carried out handling in traffic filter 8.Further consult the suitable place shown in the accompanying drawing 3, can see the detailed description of internal work in the microprocessor.See, disclosed program, employed when giving Intel 80351 microprocessor/design of Controller program is the ASM51 assembly language, and also is like this concerning outside input-output apparatus.A detailed instruction list is mixed the process flow diagram of Fig. 3, forms appendix " A ".
Further match with disclosed the present invention, the analog/digital velometer has such a few thing characteristics, they can represent some development of digital velometer technology, and these development purposes are to help operating personnel to grasp and safeguard the particular vehicle that this velometer is housed.These characteristics comprise: a) performance review of velometer system can provide various clearly malfunction indications (consulting Fig. 3 " TEST ALL ") to operating personnel; B) velometer calibration is convenient, comprises changing the velometer constant, and for example the hypervelocity is freed a little and the size of wheel and overspeed of vehicle detection and warning or the like (consult Fig. 3 " TEST EDGE).
Cooperate with the disclosed principle of the invention, above characteristics by the driver by using a new system to realize, this new system comprises hidden magnetic starting switch 20 and 22, these two switches are arranged in the housing below the LCD, are in the same place with the starting switch (not shown) that is positioned at the device housings back.Should be noted that, this switch is used as a safety switch, this is because it comprises that a lead sealing or safety rope are used for preventing that the internal constant of velometer from being transferred disorderly unintentionally, these constants may change the measurement of speed and acceleration, even the relevant safe information that velometer is read lost efficacy.
The performance review that forwards the user to now and carried out, specifically forward the 1st page of Fig. 3 on " TEST ALL(all tests) ", a magnetic probe is placed near starting on the position 24 of left hand switch 20, thereby set up the step of TEST-ALL, as shown in Figure 3, whole microprocessor is followed an experimental series that is predetermined, be that each shows indication (consulting Fig. 2) afterwards, promptly, retarded velocity bar 36, the display surface of acceleration bar 40, rotating pointer 32, garden circular graduation mark 39 and speed numeral indication 44 shows.
Then, on Fig. 3, if close safety switch and to start the switch 22(on the right side as previously mentioned not shown), then and then wheel size and size are presented at (consult the 3rd page, Fig. 2 is on " TEST EDGE ") on the speed indicating positions 44.
Subsequent, as the 3rd page of Fig. 3 clearly represented, operation proceeding to from the removing microprocessor of " AT-A " beginning all register and beginning executive routine function, that is, and and velocity survey and demonstration.These work are as shown in Figure 3 at CALC-SPD ", carry out on " A-D ", and as shown in Figure 3, all speed and accekeration all are sent on the LCD 30.
The people that are proficient in the microprocessor program design can find out the transformation of the feature operation pointed out from the above specific microprocessor language of indication in the appendix " A " immediately.
If determined or be necessary to change or remove definite speed that is used for of original storage, the constant of acceleration or hypervelocity, the safety switch (not shown) that then is in the right back portion in indicator cabin should be in the state of being activated, mainly be that the microprocessor program is taken to, " INITIAL-EDGE " be (as shown in Figure 3) partly: the magnetic force startup effect of the hidden hall-effect switch 22 of right hand side moves on to program on " SIZE " of the 6th page of Fig. 3, here need startup hidden-type switch 20 and be no more than 30 seconds time at " WAIT " 1, owing to start, the indication of the wheel diameter of storage before drawing, the leftmost one-bit digital of this indication is in the state of flashing, below this expression, with regulating or starting the numeral that change is flashed with the hidden switch 20 of left-hand, carry out in such a way, the numeral that all wheel diameters show all can be adjusted.If by-pass cock 20 is in the preset time section, be in off position in typical 30 seconds, then program enters " RANGE " (the 8th page of Fig. 3), and shows " SCAL CHNG ".
When regulating the wheel size, the follow-up work of by-pass cock showed the scale of storage, i.e. " DLIAL " (two) or " SINGLE " (list) in the past within 30 seconds.Sign " DUAL " or " SINGLE " expression is selected a kind of from following two kinds of indications, that is to say, perhaps selects the continuous velocity indication from 0 to 99 of monotype.9 mph.s; Perhaps select initial indication from 0 to 9.99 mph.s are converted to the scale of 0 to 99,9 mph. with automatic scale.
Then in (the 8th page) program of Fig. 3, at SCL CHNG " on; select two/single startup to be to be undertaken, and to be under the assumed conditions that " right hand side's on off state " changed, to carry out by hidden left-hand magnetic " ADJUST-TEST " switch 20.Prevented that scale from further changing, if and within 30 seconds, the switch of a left side or right hand side does not further start, and then on " OVR SPD ", the maximal value of car speed (if surpass should " hypervelocity value " then will have supervelocity to report to the police or show) is shown.
Proceed to the 9th page, Fig. 3 supposes that regulating test switch 20 started, and then on " OVR SPP-CHNG ", demonstrated former hypervelocity value in back 30 seconds.As wheel diameter, a most left numeral is flashed expression and is in adjustment state.
Then, in Fig. 3, the numeral in all supervelocities all can be regulated by the working on of adjusting test switch 20 of left-hand.After regulating the supervelocity indication, computing proceeds to the 10th page of Fig. 3, at this moment in " SAVE OVSP ", stores the new value of supervelocity.
As wheel diameter and hypervelocity tolerance, right hand side or not action of status switch 22 within 30 seconds, the result, spindle nose (EOA) signal rate of former storage, the number 0 to 99 that promptly leftmost one-bit digital flashes will be revealed.
Now proceed to the 10th page, the 3rd figure, the continuous action of left-hand test by-pass cock 20 can change the spindle nose signal rate, this means the permission umber of pulse of each commentaries on classics of wheel, and it will be used as determines acceleration and speed.Should be noted that the versatility of velometer disclosed herein system allows the input signal pulse rate is adjusted on the higher level, thereby adapt to the output of some radio frequency Doppler radar speed survey device.
As during above-mentioned wheel size, supervelocity and range are regulated, test by-pass cock 20, after not moving in 3 30 second time intervals, program proceeds to " ACCEL-BARS ", and all here demonstration indications show simultaneously.In this, velometer is in running order, and it utilizes the up-to-date input quantity or the change amount of the pulse rate of wheel size, supervelocity and spindle nose detection to measure and indicate car speed and/or acceleration.
So, clearly,, providing a vehicle autometer with acceleration and deceleration indicating device according to the present invention, it has satisfied above-mentioned target, purpose and benefit fully.Yet the present invention is described in conjunction with a specific embodiment, and those people that are proficient in present technique are perfectly clear, and can draw many pro-forms, modified and change type according to disclosed notion and details in the top description.Therefore, here be intended that all pro-forms, modified and the change type that comprises in the spirit that belongs to claims and the broad range.

Claims (8)

1, a utilization is imported by the pulse voltage that rotating generator produced of vehicle traction, is the device that large-scale wheel vehicle carries out velocity survey and indication, its improved being characterised in that:
A compound liquid-crystal display comprises:
Be arranged at the many scale marks that are circular arc basically, these scale marks, by some wherein brighter scale marks do groupings in advance, these scale marks are on the radial direction of the public garden heart;
Basically radially a pointer, this pointer is around the rotation of the above-mentioned scale garden heart, and corresponding one pre-determines car speed, and this pointer occupies a unique predetermined independent position close with one of them groove; With
The bar that some are arranged near the perpendicular of this arc, these one of compositions that are parallel to each other are trapezoidal, and above-mentioned length increases successively gradually.And edge in trapezoidal, each bar shaped base laterally comes into line.
Respond the device of above-mentioned definite device, be used for acceleration or retarded velocity according to above-mentioned vehicle,
Produce above-mentioned demonstration in the one group of bar that increases and/or reduce
Show the device of above-mentioned radially pointer and scale, above-mentioned indicated value is equivalent to car speed; With the device of after above-mentioned car speed indication, determining above-mentioned acceleration/deceleration at once,
Make above-mentioned acceleration show relevant device with retarded velocity,
Above-mentioned pointer, radially scale indication and acceleration bar provide the indication of vehicle movement.
2, the speed indicating device of claim 1, wherein, above-mentioned acceleration determines that device comprises:
Produce and repeat the alternating voltage telltale, the frequency of the above-mentioned axletree rotation of the frequency representation of this signal,
In the 3rd continuous time interval, in the corresponding the 1st and the 2nd time period, produce the device of the 1st and the 2nd group of above-mentioned alternating signal,
From the device of the 1st and the 2nd above-mentioned signal and definite the 1st and the 2nd speed of time period,
Determine the device of velocity contrast from the above-mentioned the 1st and the 2nd speed,
On the 3rd above-mentioned time period, determine the device of vehicle acceleration,
The device that above-mentioned acceleration and suitable some acceleration bars are complementary, it can show vehicle acceleration and the last speed of determining.
3, the speed indicating device of claim 2 comprises a microprocessor in the definite acceleration wherein and the device of speed.
4, the speed indicating device in the claim 3, generating means wherein comprises a shaft-driven pulse producer.
5, the speed indicating device in the claim 4, this device also comprises hidden shape device, its purposes is to handle this microprocessor to forward system test to from determining speed and acceleration.
6, show the speed of wheeled vehicle and the equipment of acceleration, this equipment comprises:
A LCD;
The axle of an above-mentioned vehicle;
The pulse producer of an above-mentioned axle drives, this generator is used for producing the train of impulses that is equivalent to vehicle wheel rotational speed;
The microprocessor of this train of impulses of response is used for producing the signal of indicating car speed and acceleration;
The device of above-mentioned speed of response and acceleration signal is used for producing a display graphics in this display, and it comprises:
Many circular graduation lines, its limited length, and be to be total to the park heart around one to connect radial array;
Single radially pointer around the rotation of above-mentioned scale center, some predetermined radial position of this pointer, all harmonize and close those above-mentioned circular graduation lines in these positions, and these positions are corresponding one by one with the car speed of being scheduled to;
Many substantially vertically arranged parallel strips that are arranged in the trapezoidal figure, these length increases successively, and transversal above-mentioned trapezoidal between two ends of above-mentioned trapezoidal figure, and can respond above-mentioned acceleration signal;
Here, above-mentioned pointer and acceleration bar indication that vehicle movement is provided.
7, the equipment in the claim 6, the acceleration signal of wherein above-mentioned microprocessor also comprises:
In the 3rd continuous time interval, produce the device of the 1st and the 2nd group of alternating signal in the corresponding the 1st and the 2nd time interval,
From the above-mentioned the 1st and the 2nd signal and the time interval device of the 1st and the 2nd speed really;
Determine the device of velocity contrast from the above-mentioned the 1st and the 2nd speed;
Determine the device of vehicle acceleration in above-mentioned the 3rd time interval;
Above-mentioned acceleration in the predetermined range and suitable predetermined acceleration bar are connected, thereby be presented at the device of vehicle acceleration and speed in the relevant time interval.
8, the equipment in the claim 7, the device of wherein above-mentioned definite acceleration also comprises:
Preset time at interval in, the set of pulses of predetermined integers is added up, this time period comprises fixing and a variable part;
In the 2nd predetermined time interval, the pulse of the 2nd group of predetermined quantity to be counted, the 2nd time interval comprised fixing and a variable part;
Determine to be equivalent to the value of speed of the ratio of above-mentioned count cycle and measuring intervals of TIME;
Determine the poor of above-mentioned speed;
Determine the above-mentioned velocity contrast and the above-mentioned time interval and between ratio.
CN198686108239A 1985-12-18 1986-12-18 Vehicle autometer with acceleration and deceleration indicating device Pending CN86108239A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81087585A 1985-12-18 1985-12-18
US810,875 1985-12-18

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Publication Number Publication Date
CN86108239A true CN86108239A (en) 1987-09-30

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CN198686108239A Pending CN86108239A (en) 1985-12-18 1986-12-18 Vehicle autometer with acceleration and deceleration indicating device

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EP (1) EP0263829A1 (en)
CN (1) CN86108239A (en)
AU (1) AU6479886A (en)
CH (1) CH672683A5 (en)
GR (1) GR862813B (en)
WO (1) WO1987003978A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN103134941A (en) * 2013-01-31 2013-06-05 中国航空无线电电子研究所 Smooth processing method of rotation of indicator of displaying instrument panel
CN106153138A (en) * 2016-08-11 2016-11-23 上海伟世通汽车电子系统有限公司 Automotive oil tank overflows the fuel gauge indicating means of oil mass

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JP7052853B2 (en) 2020-12-03 2022-04-12 株式会社Ｊｖｃケンウッド Display speed derivation device, display speed derivation method and display speed derivation program

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103134941A (en) * 2013-01-31 2013-06-05 中国航空无线电电子研究所 Smooth processing method of rotation of indicator of displaying instrument panel
CN103134941B (en) * 2013-01-31 2015-09-09 中国航空无线电电子研究所 The smoothing processing method of display instrument panel indicators turn
CN106153138A (en) * 2016-08-11 2016-11-23 上海伟世通汽车电子系统有限公司 Automotive oil tank overflows the fuel gauge indicating means of oil mass

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GR862813B (en) 1987-07-22
AU6479886A (en) 1987-07-15
WO1987003978A1 (en) 1987-07-02
CH672683A5 (en) 1989-12-15
EP0263829A1 (en) 1988-04-20

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