DE2335445A1 - Speed limiting mechanism for vehicles - has comparator for desired and actual speed with spring on accelerator pedal controlled by servo motor - Google Patents

Abstract

An adjustable mechanism sets the desired vehicle speed and a regulating mechanism compares the actual with the desired speed. A spring support for the accelerator pedal is moved by a position servo motor controlled by the regulating mechanism. The speed selected by the driver is displayed in his field of view. A feedback circuit is provided between the regulator and the motor. There is a safety limit switch that acts as a system override on the accelerator pedal. The desired speed adjustment is achieved externally by an induction relay.

Description

July 3, 1973 Akts.t KL 88

Applicant: Mr. Br.-Ing. Gerhard Klar, 8992 "Asserburg / Bo.

Keichßstr. 54 1/4

"Compliance with a speed range when driving

witness "

The invention relates to a method for maintaining a Speed range in motor vehicles.

In practice "it is so" that motor vehicles are after the Feeling driven, which means that the driver usually does not stop the vehicle at the traffic speeds drives, but rather the vehicle with its driving experience steers across the streets - this driving experience is very often overestimated and serious accidents occur the great danger that the driver gets into radar controls and is asked to pay

Me invention has now given itself the task Finding a method whereby the driver can do this without observing the (tachometers a τοπ him desired and on a preheating device set speed can drive, whereby he

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for example, operated by the anyway · accelerator pedal dorek Overcoming an asylum day on the speed, if exceeded, attention will be drawn to it

^ ß.jiuiii there is the possibility that the driver Toll can concentrate on the course of events and is not distracted by the device · still miss the possibility exist that dangerous driving situations can also be bridged, such as, for example, that in case of danger, the J ^ ahrseug suddenly roll can be accelerated to an overtaking gate aisle perform xu can

lias procedure and device only implementation of the Procedures must be designed in such a way that the driver is relieved when driving and, for example, also in special ί driving situations, such as s «B · when driving in convoy clearly feels relief

The invention solves the problem in that a Proposed method is what is marked, whose Setting an intended driving speed as the setpoint · »Speed at a preselected torque and tapping the Actual speed value on the vehicle and input of both values in a bowling device and control «ines otellglied« · that a resilient stop the accelerator as divides, such that dl Was the attack the intended Cieeohwlart 1 gkeltsbrelch assigned·

One can also rorgehen in the process that in addition to the

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Preselection device for dl · desired · ooll-Gesohwindigkelt susätslieh »in · device for preselection of the type of driving temperament is provided · in this ·» way one can for example a brisk driving style or slower driving adjust wisely

One can still proceed in such a way that there is a device sur determination of the difference value of the target and actual speed is provided and the difference value over the control device has a lasting influence on the servomotor. To this Vioise a susätsliche influencing can take place, depending on which fourth this blfferens possesses · One can thereby the Let the servomotor run faster forwards or let it run back faster, depending on which mode of operation is desired is.

Ea there is still the possibility of the action of the

and Dif f erentials depending on the preselection ^ fer type of

Bring driving temperament

According to the invention, the provision is made for implementation of the procedure look so that in the field of vision of the driver a manually adjustable preheating device is provided for the intended driving speed with display scale, which is coupled with a Hegel device

Furthermore, the device is designed so that it can be coupled with the accelerator pedal a threaded spindle with servomotor is available is, which susteilt a resilient command to the accelerator pedal

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.leithln the device can be designed so that controllable τοα accelerator pedal susätslich electrical switching devices are arranged, the circuits »wipe wegelgerät and servomotor influence·

The device is further developed in such a way that "between the resilient stop and the housing all electrical switching devices are arranged, furthermore is in the field of vision the driver has a container for the preselection of the ear temperament arranged, in which the driving temperature can be read, which is currently set

You can always use one of the electrical switching devices operated by the accelerator pedal _; train them in such a way that they switch a damping feedback in the cone device · In this way, it is prevented that the Hegel device comes to oscillate and constantly moves back and forth.

One can also proceed in the construction of the device in such a way that the stop is arranged firmly on the housing of the device and the entire device is spring-loaded

An end stop switch can be arranged on the accelerator pedal who is temporarily putting the device out of operation, if, for example, the accelerator pedal is fully depressed

KS it is also possible to set the nominal value of the Speed not only from the driving force absunehmea., But feed into the control device from outside by means of induction transmission · In this way an automatic from outside controlled speed range for the driver

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There is definitely the possibility instead of just one Stop / äar a full speed of several such stops so that for example the tempo limit of 50 h / km and a distance limit of 100 h / km can be set «

The invention is shown in the accompanying figure / in an exemplary embodiment schematize) * shown

The preselection gate device 1 on the display scale is placed in the driver's field of vision and is open by means of the lever 2 the desired speed value can be set by the driver, Via line 3, the signal is transmitted to control device 4, which processes the ..ert

From a suitable point on the vehicle drive, rom Encoder 5 sends the signal to the Hegel device via line 6 Actual speed value transmitted

From the switch 7, the driver can control the bowling machine 4 via the Line 9 also enter impulses for a leisurely 10, normal 11 and lively 12 driving style

Za control device are the entered impulses in one electrical circuit formations processed and wired 13 * 14, 15 transmitted to the servomotor 16 «This is Bearing at 17 on the chassis 18 The servomotor 16 actuates a threaded spindle 19 which is inserted into a thread 2i in the housing 20 intervenes. The housing 20 can move from the servomotor 4 in the partial direction 22 can be moved back and forth

In the housing 20 there is a resilient stop in the form of a bolt 28 in the device in the direction of the accelerator pedal 23 of the vehicle

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24- mounted displaceably against the pressure of the spring 25 «the in the housing 20 at 26.

The accelerator pedal 23 is rotatably mounted at .Punkt 27 aa i'ahrieug. The üol * en 2ti can stm accelerator pedal 23 as a springy one Stop work * depending on how far the otellmotor 16 the Bolsen 28 portrayed the gate and how the accelerator 23 The bolt 28 can still actuate at least one switch 29 mounted in the housing 20, which is the Hegel mechanism informs that the Bolsen 28 is out of the cooling position is extended · Another ündanaciilag-ochalter

30 transmits the signal "go through" to the bowling device 4 as accelerator pedal position

With the accelerator pedal 23, at least two containers are still working

31 and 32 together, which the control mechanism signals sur position of the accelerator pedals * 23 transmit and a damping arüokführung in the Hegel's circle cause oscillations in the Hegel's circle is avoided

Normally the adviser works so * that the driver sets the desired "Oll-speed" on the Yorwahlvorrichtung 1 * whereupon the servomotor 16 by means of the threaded spindle 19 the resilient stop with Bolsen 23 in a normal position BB · for 50 st / km in JCorm a ^ The accelerator pedal 23 can now be moved slightly up to this stop point and the speed of the Jahrseuge will run up to the speed 30 st / km

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notices "stop" at the stop, the desired speed is indicated achieved·

In addition to this normal case, various special states can now be added, by additional switching means such as β · Β · the ochalter 29, 30, 31, 32 and 7 can be mastered · But also la bowling apparatus 4 switching means are arranged, e.g. the differential value between the target and actual speed and the influence the distance and the direction of the servomotor 16

With the switch 7, for the number of the travel announcement, leaves the speed of the threaded spindle 19 to corresponding Proportionality factors change what the position of the stop between accelerator pedal 23 and bolt 28 shifts accordingly, and thus the driver his selected driving behavior allowed

To calm the way of life can help if with Intentional and conscious exceeding of the> ioil speed, position of the accelerator pedal behind the anchor point, ζ · Β · at overtaking operations by the Hegel device 4 no backlash to the Actual speed is too high, so that when going back to the stop point, the old position of the accelerator pedals 23 was preserved.

This can be achieved by the fact that switch 29 is in the "closed" position if the accelerator pedal is behind to "open" if the accelerator pedal is at the stop point, and if so Switch 29 is built into the line 13, so that no "lower" regulation takes place as long as the accelerator pedal behind üaBChlag-

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If the speed is deliberately and consciously inexperienced as a preset speed value, no higher regulation should take place, although the actual speed is less than the nominal speed. This prevents the control from adjusting to full throttle when driving too slowly for a long time, which would result in a restless year. This can be achieved inden the container 31 in the .line 14 ββ1ββ ^ ° τΐ £;? / Ϊαΐ "closed" when the accelerator pedal 23 touches the lag, switch 31 "open ¹¹ when the accelerator pedal 23 is not touching the stop

may be desirable that in bewuwtea Langsaaerf The control alters the tee regardless of your usual ooeuerfunktion until sub accelerator pedal runs back to when accelerating to the "Oll speed" the "guiding" of the accelerator pedal bu take over · lias is possible if additional switch 32, which is responsible for “concerns dee Accelerator pedal at the stop in the "open" position and when not in contact at the stop is in the "closed" position ·

switch 32 is at a slightly larger distance between the accelerator pedal and stop set as switch 31, then when taking the gas first speaks switch 31 and then switch 32 on. switch 32 is built into line 15, which causes the control to return to the switch 30 serves as a safety switch when the accelerator pedal 23 is longer Time is fully pressed to prevent damage to the gate control device · Line 13 controls the otellaotor "slower", line 14 "faster", line 15 "slower" in sehwächer · »walkway ·

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Procedure brings great benefit to the true old that fuel is saved, police penalties are avoided if vehicle wear and tear is reduced and the nerves be spared.

the driver is hindered in his or her life not one, since he can fully devote himself to the sales process »

:) he ... switch 50 is connected to the control device via line 8 4 · connected · in the rest position, the accelerator pedal 23 is dashed drawn in

The function of the intervention with switch 7 from 0.5, 2.I5 to 17 can take place once in such a way that from switch 7 the person can enter the bowling device 4- via line 9, which more or less attenuates the output signals in bowling device 4 , so that a leisurely 1ü, normal 11 and sparkling 12 * ahrweise results.

i. this is also achievable if z.ii. the housing 20 nit actuator, controlled about a pivot point 5 ^, pivoted will.

larger lever arm results in a smoother driving style, If the actuator attacks the accelerator pedal on the smaller lever arm, the result is a more spirited mode of operation, as can be seen from FIG. 2 is seen.

..if it is said that the accelerator pedal is rotatably mounted, it should be pivotable about point 27.

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in addition to the description on J. 6, the function the switches 31 and 32 are explained in more detail.

kit the accelerator pedal ?.} the two -ichalter 31 and 32 work together that they are actuated in ..bhäflgigkeit the ..distance of the accelerator pedal 23 tob bolts 28 · Whether these are for this purpose on the accelerator pedal 23 or aa bolt 28 or possibly also on the housing 20 are appropriately attached, is meaningless ^{for dl i 1 function}

Switch 29 is in control line 13 of control device 4 to the '-tsllaotor 16 installed, which leads to the signal when the servomotor 16 is intended to bring about a slower speed on the accelerator pedal, so the vehicle is moving too fast as long as the accelerator pedal is "stepped on", the vehicle speed that is caused by it is too high unable to provoke a "slower" reaction · After the end of the too fast journey, e.g. after one overtaking, the driver finds the resilient stop the old place gate that previously set its desired speed corresponded.

switch 31 is built into a line 14 as an uffner, the regardless of target and actual speed, always signal that the actuator is also on slower i'ahrt controls, so this signal is always present when the accelerator pedal has a certain distance from bolt 28, e.g. 5 na and more and the actuator always follows the accelerator pedal.

If the accelerator pedal 23 is, however, aja bolt 28, as it is the

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Normally, line 14 is interrupted and the slightly lagging I switch 32 is closed, this is in the newspaper 15, which carries a signal when the vehicle is too slow and should drive faster, i.e. a retraction of the actuator as ..tell- iiotor 16 causes ^ a. the switches 31 and cannot be closed at the same time, are counter-rotating. > telliapulse impossible.

^ he mode of operation of the control will now be explained in more detail using the example of stopping at an intersection with iiotlicht. $ u km / h set

i> er jj'uli is not on the gas pedal but on the brake pedal. So don't touch the accelerator the bolt 28, after which switch 31 is closed · the actuator moves towards the accelerator until ciialter 31 is open, switch 32 is not yet closed

When starting helu, the nut is on the Uaspedal,., ehalter remains open, switch 32 closes and the servomotor returns the actuator, since the real speed is equal to 0 st / k »lower than the selected one and therefore there is a signal on line 14 »Lia's accelerator pedal thus has a" lead "and can be depressed faster or slower depending on the 'x'eaparaiaent setting. I sleep normally, the actuator follows the accelerator again. Once the desired speed has been reached, it is maintained if the accelerator pedal is always on the resilient stop, corresponding differences between. / Oll- and actual speed

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The actuating element of the Jifferens is counteracting this value emotional·

Without the additional switches y \ and J52, the driving behavior would have been a little more restless · When stopping, if the speed value is lower than the ooll speed value, the actuator would have been moved in the direction of "full throttle"; -Speed 50 st / km had been exceeded and only then would the otell link have been reversed, so a total of undamped and pendular driving, which is undesirable in the Jraxie ^ onit is dl

In some cases, the various. -switches also work, and each of them is described in isolation, extracted from a complex yeast process.

In Fig. 2 it can be seen that housing 20, also generally as actuator referred to be moved up and down at point 5 ^ can, what about the üaspedal 23, and about the pivot point 17 twisted, complete xiebelarae of different lengths

It can also be seen that the switches 31 and 32 on one common .axis sitaen can ·

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Claims (1)

patent claims Procedure for maintaining a speed range at Motor vehicles, marked. by dividing the line of an intended ^ ear speed as ooll speed a pre-selection device, and tapping of the actual speed - value on the vehicle and entering both values into a nailing device and control of an actuator which delivers a resilient stop of the accelerator pedal in such a way that the position of the stop assigned to the intended speed range is· 2 · Method according to opposition 1, characterized in that in addition to the preselection device for the desired ooll speed In addition, a device for preselecting the * .rt of the ancient perament is provided· 3. The method according to claims 1 and 2, characterized in that In addition, a device for determining the difference value the target and actual speed is provided and the difference value over the itegel device the otellaotor additionally influenced. 4. Process according to Claims 1 to 3, characterized in that the effect of the difference value is dependent on the preselection of the type of annual period. 3. Device for carrying out the method according to claim 1, characterized in that the driver's field of vision is a manually adjustable preselection device for the intended - 2 409885/0680 BATH ORIGINAL Driving speed bit üiizeigeekala gate is seen, the old an «ironing device is coupled ·
6 · Device according to Änepruoh 5, characterized in that a threaded spindle old Steliaotor Yorhanden, which can be coupled to the accelerator pedal, delivers a resilient stop to the accelerator pedal. 7 · Device according to claims 5 and 6, characterized in that controllable to * accelerator pedal is susätslich electrical · keep gate directions are arranged, the ütroakreiae swisehen control device and influence iitellaotor « 8. Device according to claims 5 to 7 »thereby marked, that between the resilient ».stop and the housing additional electrical uchalt devices are arranged 9 «device according to claim 2, characterized in that la The driver's field of vision is a switch for the preselection of the driving operations is arranged 10. Device according to, aiapruch 7t thereby gekennseichnet that a of the electrical breaker devices a JJapfungsrückführung la Begel device switches « 11 · Device according to claim 6, characterized in that the stop is fixed to aa housing of the device and the seeded device is spring-loaded " 12. Device according to claims 5 to 11, characterized thereby, that a ^ ndanachlag-ochalter aa accelerator pedal is arranged, the puts the device out of operation for a short time 13 · Device according to claims 5 to 12, characterized in that that the nominal value of the speed can be fed in from outside by means of induction transmission 409885/0680 BATH ORIGINAL