DE2003385C3 - Curve-dependent control device for vehicles - Google Patents

Description

^ on which is equipped on a pendulum stepping out on the vehicle, results according to the further

Ourrkraft deflectable pendulum are arranged. The formation of the invention an advantageous embodiment

A wide contact device is also used for actuation by virtue of the fact that the associated

^ nO the Verstellein- Messugnale controlling the vehicle position (+ ω and H _R as well as - ω and H ^) for the

rHitung. 5 rotary movement and the pendulum deflection over two

In this known device, wäh- NAND elements are combined whose

At the end of the occurrence of rotational accelerations, the outputs via a further NAND element with a

Contact device of the gyro, after decay the input of one in which the actuation signal (S _n ) for

Turning accelerations with some delay the locking of the level control leading to

the contact device of the pendulum the layer control io output line connected AND gate connected

rune of the vehicle, so that the vehicle is at a standstill.

According to a development of the invention, it can

Curve the pendulum to straighten up the vehicle- in both configurations to switch off Ie-

% s causes. However, this device, which has only two mechanical contacts caused only by pendulum oscillations, is expedient for 15 control processes, if in itself

a control device according to the main patent in a known manner in which the measurement signals (H _R and HjJ

not transferable and does not give any stimulus, as with the pendulum to the AND gates or the NANU

This one line that is too strong and leads under the mentioned conditions only one at a time

If the vehicle is tilted, measurement signals lasting a certain period of time are avoided It should also be mentioned that the classifier 20 forwarding delay element is switched on.

of delay devices in the control line.

»Nneen or mechanisms of inclination controls and designed control device shown,

is widely known. with the greatest possible agreement

The invention has for its object to be a mung with the drawing (Fig. 1) of the main paternal

Curve-dependent control device for vehicles of which 25 was respected: · ■ 1

To improve the type mentioned in such a way that a In the vehicle is a tied gyroscope 1 to one

Too strong or too long lasting unjustifiably vertical axis rotatably arranged to a limited extent tine

tes inclination of the vehicle towards the inside of the curve with the measuring device Z giDt coupled to the gyro 1

is avoided when the rotary movements indicated by the gyro 1 According to the invention, this object is achieved by the vehicle corresponding to its vertical axis.

oelöst that switching devices are provided, which the direction of rotation distinguishing Meusignaic

before a rotation angle + ω and - ω as well as the angle of rotation acceleration

movement indicating measurement signal (+ ta. - ω) and own + ω 'and - ω' corresponding measurement signals from _Die

nes a pendulum swing in the direction of Drehbe- measurement signals of the measuring device 2 are clekwegung indicating Meßsigna.s (# * ". H ₁₎ the discharge lines 35 Irish 3.45 and 6 *"". ™ £ ^rt ^^ _

an actuation signal (S _n ) for locking the pending Schalteinr.chtung 7 supplied, which in ih

Stop NWeau-1 firing. rer one switch position the measuring signals unchanged

Due to the inventive design of the and in their other switching positions each interchanged

Control device, the pendulum is in addition to its from lines 3, 4, 5 and 6 to lines β, ν,

monitoring function during a curve input 40 10 and 11 is transmitted. elec

The switching device 7 is used via a c ^ k

To the inside of the curve the normal level control line 12 according to the Polanta:

Control of the vehicle to take effect on DC voltage generator "E ^ * ^ ' ^d ^ ^

leave until such a vehicle wheel is driven via this level control. ^Bn ^^ fgV ^g

The erection of this vehicle has been achieved so that the I-hole 45 14 of the control line 12 leads to a switch gear

axis of the vehicle runs parallel to the pendulum. device 15, which regardless of polarity

This means that the vehicle can be tilted by exceeding a Mummten ^ ntojp «» «ng J

Avoided dummy plumb bob. In addition, non in a connection 7 ^ 17 * ^ 3 ^ ™

In this way, a re-erection of the vehicle is arranged 16 to a supply line 17

if switch 18 closes as a result of too weak a curvature change. " _N "_Ρ; _ηΡ ς ι ΝΠ-

Understanding the crossover bend at an exit from a curve. The line 8 .st at one, input of an IND

diAeuerungseinrichtung due to their insensitivity gates 19 of a ^^ Vra ^ Sroifuhrt zu

,, hkeitkeinidrehwinke ^ acceleration-dependent ^^^^^^ £ ^ r _Cn

^MC Ä Äeinrichtung with one at his ₅₅ AND Ser ^ and to e.ner ^ e 24. The line

Swinging-out positive measuring signals emitting Pen-10 is each with one, .values ^^. ^^ Κ ^

del is equipped, it can be connected to a further exit 19 and 22. The management IV closes

Design of the invention be advantageous if the / λ, the second inputs of the AND-C, at he 2 », and

mutually associated measurement signals (+ ω and H _R so- 23. The diodes 21 and 24 are via c nc LeJung

like - ω and H ₁ ) for the rotary movement and the pen- e- together at the input of a signal amplifier

delaussehlagüberjc an AND element connected together. .

to a NOR element, the output of which is in the vehicle transversely : u whose

with one input one into which the actuation signal swings a pendulum 27 '

(S _s ) for shutting off the level control leads to a swing out Kc » ^nt f

ren ^ output line connected AND _{gate 6j} ^^^^ "duS ^ ϊ ^« ^ · ^

^Ver FaTs the fire device on the other hand with a contact 28 when it is open / wipe the supply line

J £ : Ausäragrnegative'Melsfgnale emitting 17 and one to a third input of the AND-Ga «

ters 19 leading line 30 is provided. The administration

30 therefore leads to a positive measurement signal H ₁ when a downhill drift occurs in the vehicle to the left . The contact 29, which closes when the vehicle is traveling forwards through a left turn, is in a connection from the supply line 17 to a line

31 switched on, which leads to a third input of the AND gate 23. When a downhill drift occurs to the right, the line 31 carries a measurement signal H _R. Furthermore, a middle switch 32 is arranged on the vehicle, which is controlled as a function of the angular position between an unsprung and a spring-tone part of the vehicle. The middle switch 32 only interrupts a connection from the supply line 17 to a line 33 which leads to third inputs of the AND gates 20 and 22 when the spring-loaded car body (not shown) is in a position parallel to the road surface and thus to the wheel axles of the vehicle.

The output lines 34 and 35 of the two AND gates 19 and 22 lead to the two inputs an OR gate 38. The two output lines 36 and 37 of the two AND gates 20 and 23 are connected to the inputs of an OR gate 39. The output of OR gate 38 is via a line 40 to the input of a signal amplifier 41 and the output of the OR gate 39 is connected to the input of a signal amplifier 43 via a line 42.

When a signal is present at their inputs, the signal amplifiers 26, 41 and 43 each energize the coil of a relay 47, 48 and 49 connected to their outputs 44, 45 and 46. The relay 47 connected downstream of the signal amplifier 26 closes a switch 50 when it is energized, which is provided in the connection of a line 52 continuously connected to a voltage source 51 with an output line 53 for an actuation signal S _n .

The relay 48 carries open relay switches 54 and 55 in its unexcited state. The relay switch

54 is connected in a connection of the line 52 to an output line 56, which leads to an actuation signal S _R for tilting the vehicle to the right only when a rotational angular acceleration acting in a certain direction occurs on the vehicle about its vertical axis. The relay switch

55 is engaged in a connection from line 52 to line 57. Finally, the relay 49 also actuates two relay switches 58 and 59, which are only closed in its energized state. The relay switch 58 is switched on in a connection from the line 52 to an output line 60, which only sends an actuation signal S when an angular acceleration of the vehicle in the opposite direction occurs _L results in the vehicle leaning to the left. The relay switch 59 is switched on in a connection from the line 52 to a line 61.

The lines 57 and 61 each lead to a contact 62 or 63, respectively, of two relays 64 and 65, which is closed in the unexcited state. The contact 62 is connected upstream of an output line 66 for an actuation signal Snr. An output line 67 for an actuation signal S _NL extends from contact 63. The output line 66 is also connected to the coil of the relay 65, which is earthed on the other side, and to a contact 68 of the relay 65 which is open when the relay 65 is in the deenergized state. The coil of the relay 64, which is also earthed on the other side, and a contact 69 which is open when the relay 64 is in the de-energized state, is connected to the output line 67. The contacts 68 and 69 are on the other hand via a line 70 with the output line 5Γ in connection. The actuation signals S _NR and S _n serve to control a special level control device that is only controlled as a function of the height of the longitudinal axis about which the vehicle body can be pivoted by the inclination control of the vehicle.

The structure of the inclination control device corresponds to the main patent; the way it works is also completely the same as the main patent and therefore does not need to be described here.

• 5 According to the invention lead from which the measurement signals + ω and - ω leading wire lines 3 and 4 branch lines 71 and 72, respectively, to the inputs an AND gate 73 or 74. From the line 30, a branch line 75 leads via a delay

* o element 76 to a second control input of the AND gate 74, and a branch line 77 leads from the line 31 via a delay element 78 to the second input of the AND element 73. The outputs of the two AND elements 73 and 74 are via lines 79 and 80 connected to the inputs of a NOR gate 81. A line 82 leads from the output of the NOR element 81 to an input of an AND element 83, which is switched into the output line 53 and only occurs when positive signals occur both in the output line 53 and in the line 82 at the output terminal 84 of the actuation signal S _n allows.

The design of the inclination control device according to the invention results in the following:

When the vehicle is inclined at its driving speed while negotiating a curve is reduced and the centrifugal force is reduced accordingly, the pendulum 27 swings to the inside of the curve out and closes one of the contacts 28 and 29, respectively.

This process can be supported by the actuating device for tilting the vehicle, which is able to tilt the vehicle further as a result of a reduction in the centrifugal force acting on the vehicle. A measurement signal H _L or H _R therefore occurs in one of the branch lines 75 or 77, which is fed to the AND element 74 or 73 with a delay via the delay device 76 or 78.

Since a measurement signal - ω or + ω is fed to the other input of the AND element 74 or 73 via the branch line 72 or 71 as a result of the cornering of the vehicle, the AND element 74 or 73 sends an output signal to the line 80 or 79. This output signal causes the NOR element 81 to interrupt the signal present in the line 82 with lines 79 and 80 without signal. This means that the signal at one input of AND element 83 disappears, and the actuation signal S _n that was previously present at output terminal 84 is interrupted.

The usual level control of the vehicle can thus become effective and an upright position of the vehicle cause until the closed contact 28 or 29 is opened again by the pendulum 27. The branch lines 75 and 77 are thus again

⁶ S without signals, there are no signals at the inputs of the NOR element 81, the line 82 carries a signal again and controls via the AND element 83 if the signal flow in the output line 53 is still ongoing

the actuation signal S _n to the output terminal 84 again. After the vehicle has been erected until its vertical axis is parallel to the direction of the pendulum 27, an actuation signal S _n for switching off the level control of the vehicle is emitted again.

Corresponding processes take place when irregularities in the inclination actuator of the vehicle cause the vehicle to incline too much while cornering. Such processes are also caused when the vehicle drives through a transition curve with a very small change in the radius of curvature from a curve to a straight line, whereby, due to a certain insensitivity of the gyro 1 or the measuring device 2, no measurement signals + ω 'or - <u' to straighten up again of the vehicle occur. The measurement signals -I- ω and - ω are retained in such a case and, together with the measurement signals H ₁ and H _R caused by the pedal 27, cause the vehicle to straighten up again by interrupting the actuation signal S _n via the level control.

It may be useful to use a modified pendulum instead of the described pendulum 27 with contacts 28 and 29 for outputting positive measuring signals H _L and H _R during pendulum swings, which interrupts measuring signals when it swings, i.e. emits negative measuring signals. If such a pendulum is used, it is expedient to provide three NAND elements instead of the AND elements 73 and 74 and the NOR element 81.

The delay elements 76 and 78 are used

»5 Eliminate short-term measurement signals H _L or H _{R of} the pendulum 27, which are only triggered by pendulum oscillations. It can be useful to set the delay time of the delay elements 76 and 78 to about 1 second.

1 sheet of drawings 609 611 /

Claims (4)

Patent claims: i. Curve-dependent control device for vehicles, in particular for the inclination control of rail vehicles equipped with air suspension, with a measuring device which emits control signals when driving through curves and is arranged in the vehicle, whereby a rotational angle acceleration and rotational angle speed sensitive, during the occurrence of rotational angular accelerations and rotational movements of the vehicle about its vertical axis, see Measurement signals (+ «κ, -« υ, + <(/, - (;) ') generating measuring device according to the direction of action of the angle of rotation ^{l /> acceleration or rotational movements and a pendulum suspended swinging to the direction of travel of the vehicle for the creation of different direction-dependent effects} Actuating signals (S ", S ₁ ) for tilting on both sides and an actuating signal (S _n ) for shutting off a bilateral level control are provided, according to patent 16 05 084, characterized in that Schalteinrichtu ngen are provided, which with the simultaneous occurrence of a rotary movement indicating measurement signal (+ «ι, - ω) and a pendulum deflection in the direction of the rotary movement indicating measurement signal (II _K , H ₁ ), the output of an actuation signal (S _n ) for locking the Prevent level control. 2. Control device according to claim 1, with one at his? A pendulum emitting positive measuring signals deflects, characterized in that the mutually assigned measuring signals (+ ω, and H _R as well as - ut and H _L ) for the rotary movement and the pendulum deflection are combined into a NOR element via an AND element (73, 74) (81), the output of which is connected to the cine-n input of an AND element (83) connected to the output line (53) that carries the actuating signal (\) for shutting off the level control. 3. Control device according to claim 1, with a pendulum which emits negative measurement signals when it deflects, characterized in that the mutually associated measurement signals (+ ω and H _R and - ω and //,) for the rotary movement and the swing of the pendulum via two NAND members are combined, the outputs of which are connected via a further NAND element to an input of an _{AND element which is switched on in the actuating signal (.S 'v} ) for shutting off the level control. 4. Control device according to claims I and 2 or 3, characterized in that in a known manner in which the measurement signals ( H _H and //,) of the pendulum (27) to the AND gates (73 and 74) or the lines (75 and 77) leading to the NAND gates each have a measurement signal lasting only a certain period of time because the delay element ( ⁷ 6 or 78) is switched on. The invention relates to a curve-dependent control device for vehicles, in particular for an inclination control device of rail vehicles equipped with air suspension systems, with a control device that emits control signals when driving through curves. In the vehicle arranged measuring device, whereby a rotational angle acceleration and rotational angle velocity sensitive, during the occurrence of rotational angular accelerations and rotational movements of the vehicle about its vertical axis, separate measurement signals (+ ω, - ω. + ω ', -) that differ according to the direction of action of the rotational angular acceleration or rotational movements. ω ') generating measuring device and a transverse pendulum swinging in the direction of the vehicle to generate different, direction-dependent actuation signals (S _n , S ₁ ) for tilting on both sides and an actuation signal (S _n ) for blocking a bilateral level 2 "control are provided, according to patent 16 05 084. In the curve-dependent control device for vehicles described in the main patent, the pendulum is only used to exclude excessive inclination of the vehicle to the inside of the curve when entering a track curve When entering a curve, actuation signals S _H or S ₁ causing the vehicle to incline / ur curve inside until the vertical axis of the vehicle body is reached runs parallel to the pendulum. As soon as this state is reached, the pendulum interrupts a signal output It has now been shown that when the vehicle is driving in a curve, its driving speed reduced and thus the centrifugal force acting on the machine is reduced, the controlled by the control device Tipping forces tend to the vehicle in an undesirable manner more strongly towards the inside of the curve while a certain upright position of the vehicle is desirable would. Even if the transition curve from the curve to a subsequent, straight stretch of road has a very slight change in curvature, such that the control device is too insensitive to be able to output a measurement signal ω dependent on the angular acceleration, the tilting forces for the vehicle controlled by the control device remain in an undesirable manner exist and cause further tilting of the vehicle. A similar defect can also occur if the tilting device of the vehicle has a slightly damaged, leaky pressure medium control. If, for example, an air suspension of the vehicle is used as the tilt actuation, as described in the earlier German patent 16 05 083, a slight leak in the air suspension bellows on the inside of the curve can lead to undesirable excessive tilting of the vehicle. From the German interpretation I 2d2 133 is one Device for transverse steel insulation of vehicles known, which between a gyro as a rotational speed dependent Measuring device and one with its rotating frame elastically coupled, opposite the vehicle frame in its rotary movements damped Drehami a first, electrical contact device for actuation of the adjustment devices controlling the position of the vehicle. Only with in A second contact device is located in the middle of the rotating arm in relation to the rotating frame.