EP3102757A1 - Parkvorrichtung für kraftfahrzeuge - Google Patents
Parkvorrichtung für kraftfahrzeugeInfo
- Publication number
- EP3102757A1 EP3102757A1 EP15710435.7A EP15710435A EP3102757A1 EP 3102757 A1 EP3102757 A1 EP 3102757A1 EP 15710435 A EP15710435 A EP 15710435A EP 3102757 A1 EP3102757 A1 EP 3102757A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inclination
- platform
- control unit
- angle
- parking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/02—Small garages, e.g. for one or two cars
- E04H6/06—Small garages, e.g. for one or two cars with means for shifting or lifting vehicles
Definitions
- the invention relates to a parking device for motor vehicles with at least one liftable or lowerable platform, which is intended to carry the at least one motor vehicle to be parked, and the platform is arranged between at least two hydraulic cylinders acted upon by pressure and volume of a hydraulic fluid, a hydraulic pump Pressurized hydraulic fluid, and the platform is connected to the extendable elements of the hydraulic cylinder and causes the movement of the extendable elements, a lifting or lowering of the platform.
- the invention relates to a retrofit kit or the use of a control device, in particular in the retrofit case, a parking device for motor vehicles, wherein the parking device has at least one liftable or lowerable by a drive platform, and a method for moving the platform / s a parking device.
- the parking devices described above are well known. They can be found, for example, as stackers or double parkers in underground garages, etc., and have the advantage that more than one vehicle can be parked on one floor space.
- the known parking devices consist of a support frame on which the at least one platform can be raised or lowered.
- at least two hydraulic cylinders are provided as the drive, for example, with the platform or platforms being located between the two hydraulic cylinders.
- the platform (s) are guided in the support frame.
- this platform / s has / have the weight of one, two or even more vehicles and tilting of the platform (s) in the vertically oriented guideways is unfavorable since, on the one hand, this affects the usability of the parking device and / or damage the parking device itself.
- the invention is based on a parking device as described above and proposes that an inclination sensor is arranged on the platform, which measures the inclination angle of the platform about the longitudinal axis of the platform and the value of the inclination angle is fed to a control unit and the control unit compares the measured value of the inclination angle with a reference value and the control unit is electrically connected on the one hand with the pump drive of the hydraulic pump and / or on the other hand cooperates via a control line arranged in the hydraulic supply lines of the hydraulic cylinder valves and clocked by a control frequency, depending on the comparison between the reference value and measured angle of inclination acts on the pump drive and / or the valves, the control unit, the control frequency or the opening width of the valves depending on the angle of inclination and / or in dependence on the change of the inclination angle with time v he changes.
- control unit on the one hand electrically connected to the pump drive of the hydraulic cylinder. is bound and / or on the other hand cooperates via a respective control line with arranged in the hydraulic supply lines of the hydraulic cylinder valves.
- the invention is so integrally formed that both simultaneously, as well as in a simple embodiment of the invention, only the pump drive alone or the valves are solely affected by the controller.
- the invention also includes various strategies on how to respond to the change in the angle of inclination, which is why it is not contradictory that the control unit changes the control frequency or the opening width of the valves as a function of the angle of inclination and / or in dependence on the change in the angle of inclination with time.
- simpler strategies only inclination angle-dependent or only as a function of the change in the inclination angle with time is regulated. In higher value scenarios both criteria are used.
- a retrofit kit for parking devices for motor vehicles which can be connected or connected via a measuring line to a control unit and at least one control line provided with a control line provided on the output side, wherein the parking device can be raised or lowered by a drive has lowered platform, and in the case of retrofitting the inclination sensor is attachable to the platform such that the inclination sensor is able to measure the inclination angle of the platform about the longitudinal axis of the platform, and the value of the inclination angle is zuluhrbar the control unit, and that in the retrofit case, the control unit compares the measured angle of inclination with a maximum angle of inclination, and the control line of the control unit is so connected to the drive, and in the case that the inclination angle to the maximum inclination swinkel exceeds, the drive is switched off.
- the object according to the invention is achieved by the use of an inclination sensor which can be connected or connected to a control unit via a measuring line and a control device for parking devices for motor vehicles provided with at least one control line on the output side, in particular in the retrofit case, wherein the parking device has at least one by a Drive has liftable or lowerable platform, and in the case of retrofitting the inclination sensor is attachable to the platform is such that the inclination sensor is able to measure the inclination angle of the platform about the longitudinal axis of the platform, and the value of the inclination angle is fed to the control unit or is supplied , And that in the retrofit case, the controller compares the measured angle of inclination with a maximum angle of inclination, and the control line of the control unit is so connected to the drive, and in the case that the inclination angle the max Imalen tilt angle exceeds the drive is switched off.
- the whistle of the invention is that it has been recognized that by the use of a position information and the temporal change of this position information, which is obtained via the tilt sensor and derived therefrom control or regulation information, the mechanical load and, as in the also to Invention associated method is described in detail, the risk of corrosion is significantly reduced.
- the proposal according to the invention solves the task described above to achieve an improvement in the sustainability of the generic parking device in a convincing manner. It can be used very variably and in particular even with existing parking devices, as described in the context of the likewise claimed retrofit kit or use in the retrofit case, feasible.
- the value of the inclination angle is continuously fed to a control unit and the control unit continuously compares the measured value of the inclination angle with a reference value. Continuously, this means that the transmission of the measured value and the resulting control process is carried out regularly, within an adjustable interval, and so a permanently uniform synchronization of the platform is realized.
- the tilt sensor is placed on the underside of the platform, ie protected by the platform itself. It is connected, for example via a wired line or wireless connection to the controller.
- the result of the movement of the platform is monitored, that is, it is used a control-rule circle and the actual movement, in particular the inclination of the platform recognized and taken into account for control purposes.
- a tilt sensor is sensitive to a tilt angle of the platform about the usually horizontal longitudinal axis of the platform.
- the longitudinal axis of the platform is oriented parallel to, or substantially parallel to, the longitudinal extent of the vehicle parked thereon.
- the angle of inclination in the horizontal (this would then be oriented at right angles to the longitudinal axis) ideally minimal, that is 0 °, an inclination angle greater than 0 ° already describes a certain Verkantrisiko the platform in the parking device with the problems described above.
- a reference value is stored in the control unit and the control unit The device continuously compares the measured value with the reference value.
- the reference value is, for example, an angle that is structurally tolerable, ie within which there is no risk of Verkanning. It derives, for example, from the generally necessary tolerances that are customary for the construction of such parking devices. If a tilt angle which is not tolerable (because it is greater than the reference angle, corresponds to an accident) is now determined by the inclination sensor, then the control device intervenes in a suitable manner in the drive of the platform.
- the drive is realized by two hydraulic cylinders, in whose hydraulic supply lines at least one valve is arranged.
- the hydraulic cylinders are operated with pressurized hydraulic fluid from a pump drive.
- the control unit is now connected, for example, to the valves and / or the at least one pump drive such that it opens or closes the valves in the event of a fault or throttles or increases the pump drive.
- the aim of this measure is to reposition the platform so that the angle of inclination is smaller than the reference angle. This can be done for example by a one-sided braking (for example, the leading side) or by accelerating the nachhinkenden, so obliquely downward side done.
- the platform Since the users of the mentioned parking devices generally want to get to the vehicles parked on the platform as quickly as possible, the platform will regularly be decelerated unilaterally in the event of a malfunction in order to regain the horizontal orientation, but the invention is limited to this in no way , In this case, the arrangement is chosen so that the result of a corresponding controlling action is monitored and evaluated again.
- a further advantage of the solution according to the invention over the prior art is that the control of the synchronization of the platform according to the invention takes place depending on the angle of inclination.
- a large inclination angle of the platform means a greater risk of tilting than a smaller angle of inclination.
- a pitch-dependent control is to be understood that at a greater angle of inclination, the countermeasures initiated by the control are greater or stronger than at a smaller pitch angle. For example, at a larger inclination angle, the inflow of hydraulic oil to the hydraulic cylinder, which is on the trailing side, is increased to a greater extent than at a smaller inclination angle.
- the parking device according to the invention thus adapts its control to the respective current inclination of the platform and thereby more quickly and efficiently produces an inclination angle of the platform within the tolerance.
- This control of the synchronization of the movement of the platform which is always precisely matched to the current requirements, therefore represents a significant improvement in terms of the longevity of the parking device as well as of the comfort when using the device. It is particularly advantageous in the solution according to the invention that in addition to the information about the current inclination angle of the platform of the parking device, as described in the previous paragraph, also the temporal change of this current inclination angle can be incorporated into the control of the synchronization.
- this temporal change of the inclination angle as an input to the automatic control of the synchronization of the platform leads to an even faster and more efficient control. If, for example, a rapid change in the angle of inclination, in other words a large temporal change in the angle of inclination, is determined, the counteracting of the inclination of the platform is correspondingly regulated to a greater extent than would be the case with a small temporal change of the inclination angle. For example, in the case of a large temporal change of the inclination angle, the inflow of hydraulic oil to the hydraulic cylinder of the trailing side is increased in proportion to the amount of change in the inclination angle with time.
- a rapid temporal change of the inclination angle is thus countered with a correspondingly fast-acting, efficient countermeasure. This ensures that the production of an angle of inclination within the tolerance range is achieved faster than would be possible with a control without taking into account the temporal change of the inclination angle. If, after a large time change of the inclination angle with a correspondingly initiated rapid countermeasure, a smaller time change of the inclination angle is again measured, the countermeasure, for example the inflow of hydraulic oil on one side of the platform, is accordingly slowed or reduced again. This significantly reduces the risk of overloading the angle of inclination of the platform in the opposite direction.
- the use of the temporal change of the angle of inclination as input information to the control thus also serves to the number of control loops to restore a tilt angle of the platform, which is within the tolerance to reduce. According to the invention thus contributes to the described use of the time derivative of the inclination angle to a significant improvement in the control speed and control quality for a uniform movement of the platform of a parking device at.
- the proposal according to the invention is therefore not limited to a mass and therefore cost reduction, but leads to a gentler and more energy-efficient operation of the parking device and thus to a sustainable and durable, far less maintenance-intensive product.
- the control unit recognizes which side is leading and which side is trailing. It can now (and this is the preferred variant) the leading side be braked something, including, for example, provided in the hydraulic supply solenoid valves or valves are closed for a short time and so on the hydraulic pressure and flow Disconnect the hydraulic fluid. Alternatively, it is of course also possible to accelerate the lagging side a bit and so again to achieve a horizontal position.
- the parking device has a platform or multiple platforms that is / are provided for receiving motor vehicles. If the term platform is used in the singular or plural, this does not exclude the use of the proposal on a platform in the plural or singular.
- the invention proposes a retrofit kit or the use of possibly provided on the parking device elements, such as a control unit and a tilt sensor, especially in the retrofit case before. Even with this proposal, the object described above is solved convincing, as well as a mastery of the movement of the platforms, in particular their monitoring is possible.
- this inventive proposal is designed as a retrofit kit or as a use in the retrofit case and thus also existing parking devices, regardless of their specific embodiment of the lifting or lowering drive of the platform to participate in the benefits of the invention.
- the proposal according to the invention achieves a reliable monitoring of the movement of the platform (s), because thus a sliding surface of the platform, ie a position of the platform outside the tolerable inclination angle range, leads to a shutdown of the drive of the parking device. This avoids the danger that the parking device will be damaged by the unintentional accident or, in the worst case, the vehicle parked on the platform will be damaged.
- the proposed solution of the problem described here remains deliberately open with a view to the design of the drive, since in addition to hydraulic lifting means, of course, other motor-driven lifting means, such as winches, cables, etc. may be used.
- this proposal will be used as a retrofit kit on existing parking facilities.
- the applicant expressly reserves the right to claim this embodiment in the context of a procedure. It is envisaged that the drive is switched off when the angle of inclination exceeds a maximum angle of inclination. Such a situation can be provided as emergency shutdown. The emergency shutdown is then preceded by a maintenance call in which the so equipped, used or retrofitted parking device still remains operational, but recommends maintenance (this recommendation is issued for example on a display device that is connected to the controller), thus ensuring safe operation ,
- This proposal according to the invention describes at least three different phases or uses or operating states.
- the first operating state the normal operation, the measured inclination angle is smaller than a first critical angle.
- the second operating state the maintenance call, the measured angle of inclination lies between the first critical angle and the maximum angle of inclination.
- the third operating state the emergency shutdown, is characterized in that the measured angle of inclination is greater than the maximum angle of inclination.
- the approaches described above aim to control the movement of the platform so that a safe and trouble-free operation, combined with a gentle operation of the parking devices is possible.
- the aim is to move the platform with the least possible tilt angle in order to avoid the problems described above.
- this approach of the invention is not limited. A contribution to the conservation of resources is also made when the known parking devices are operable so that harmful influences are reduced or eliminated.
- the proposed solution also includes a method for the controlled tilting of at least one liftable or lowered platform of a parking device for motor vehicles, wherein the platform is arranged between two each driven by a drive lifting means, on the platform a tilt sensor is provided, and the inclination sensor a control unit is connected, wherein the platform is in a defined position before the start of tilting, the control unit sets a maximum inclination reference value, and the control unit acts on the drives or elements (eg valves) of the drives of the lifting means via control lines in such a way that the desired inclination reference value is reached, the inclination sensor continuously measures the inclination angle and is forwarded to the control unit, where the inclination angle is continuously compared with the inclination reference value and upon reaching the inclination reference value, the control unit or the drive / s of the lifting device switches off.
- the control unit sets a maximum inclination reference value
- the control unit acts on the drives or elements (eg valves) of the drives of the lifting means via control lines in such
- the proposed method according to the invention is used, for example, to deliberately tilt the platform to run on the platforms located water (for example, dirty water, salt water, etc.).
- the platforms are equipped with appropriate protective equipment (coatings, etc.) against corrosion.
- the sustainability and thus the value stability according to the invention operated parking devices is significantly increased if water that is on the platform can run as quickly as possible from the platform and so not even opened the possibility that corrosion can occur.
- the proposal of the invention deliberately uses the whistle of the invention, namely the controlled controlled movement of the platform, in particular their inclination.
- the parking device equipped in this way regularly carries out corresponding maintenance trips So the platform tends to a few degrees to run off the water located on the platform. This can then be provided when the parking device is empty, so no vehicle is parked. But it can also be done in principle with parked vehicles.
- the drive has to be interpreted very extensively.
- the drive is designed, for example, as a central drive, which supplies a plurality of lifting means with working pressure or with lifting energy, in which case the drive also includes further elements (of the drive) which allow regulation at the respective lifting means.
- These include, for example, valves, so electromagnetically controlled hydraulic valves, which are arranged in the supply line, but it can also be other elements such as gear, etc., be provided according to the configuration of the drive.
- each lifting means ie on each side of the platform
- a separate drive unit as well as the arrangement of a central drive, which with the respective lifting means associated elements interacts.
- control unit regulate the valves with pulse width modulation at a control frequency and, as a function of the angle of inclination, regulate the pulse width and, as a result, the opening or closing times of the valves.
- the arrangement is chosen so that in the hydraulic supply line in front of the hydraulic cylinder, a valve is arranged, which is controlled by the control unit.
- These valves are equipped, for example, as switching valves, which ultimately know two switching states, namely open and closed. If no 100% volumetric flow is required, the valve must be closed temporarily during a period of time become.
- valve is addressed with a control frequency, wherein a 100% opening of the valve corresponds to a 100% actuation of the valve within the control period fixed by the control frequency. If the volume flow is to be limited, the valve is temporarily closed within the control period, which is usually done via a pulse width modulation. It has been found that such a procedure allows a very sensitive and therefore also effective control option, especially for achieving a high-quality synchronization.
- a regulation of the valve or valves takes place in that the pulse width is increased, for example, so that the opening time of the valve is increased when it is detected by the controller that the platform is inclined. An increase in the volume flow is then displayed, for example, on the page that is running. Conversely, it may be beneficial to slow down the leading side somewhat by there somewhat reduces the pulse width and thus the valve over a period of time proportionately more closed.
- control unit comprises at least one controller and a memory
- the memory holds a characteristic of characteristics, from which selected at least as a function of the sensor signal of a sensor, in particular the inclination sensor in a selection unit from the memory a characteristic is transferred to the controller.
- This embodiment further improves the control behavior for the synchronization of the platform of a parking device.
- a selection unit is provided, which selects the best fit curve depending on the situation and transfers to the controller to control.
- At least one sensor signal is used as input information for the selection of this currently most suitable characteristic curve. In the simplest case, the signal of the inclination sensor is used for this purpose.
- the selection unit selects, based on the current inclination angle and / or the current time change of this inclination angle, the best-fitting characteristic curve from a characteristic map stored in a memory.
- a characteristic is selected which causes a quick and strong countermeasure against the present great inclination of the platform and thus provides a quick restoration of an inclination angle within the tolerance. Accordingly, with a smaller angle of inclination, some characteristic for a less severe countermeasure is selected to achieve the same goal, namely an inclination angle within the tolerance.
- Characteristic here is to be understood as the functional relationship between two variables.
- an electric voltage is used to control a proportional valve, which regulates the flow of hydraulic oil to a cylinder.
- the control unit thus uses a voltage signal as output to such a proportional valve.
- a characteristic curve for the regulation of such a proportional valve could be, for example, the functional relationship between the electrical voltage for the proportional valve as a first variable and the time as a second variable.
- Such a characteristic describes the course of the voltage during the control.
- the invention also includes any other functional relationships between two variables, such as the change of an electric current strength as a first variable and the time as a second variable.
- Various such characteristics are stored in a map.
- the selection unit compares these stored parameters with the parameters present in the current situation.
- the currently measured angle of inclination is compared with the tilt angle stored in the know as a parameter.
- the selection unit selects the parting line whose stored parameter for the inclination angle best matches the currently measured inclination angle. Since, according to the invention, a selection of the characteristic curves is not only possible on the basis of a parameter, but can find several input parameters in the selection of a characteristic curve, this is referred to as a multi-dimensional characteristic diagram.
- the characteristics stored in this map can be determined empirically in advance by experiments. However, it is also possible elsewhere to create or determined characteristics there.
- Such a controller is implemented, for example, by a corresponding control software. Alternatively, it is possible to use a neural network for this purpose.
- At least one sensor for measuring the pressure of the hydraulic oil and / or at least one temperature sensor and / or at least one sensor for measuring the flow rate of hydraulic oil are provided and also the sensor signals of these additional sensors act on the selection of the current characteristic from the map.
- the sensor signals of these additional sensors act on the selection of the current characteristic from the map.
- a variant of the proposal opens the possibility to realize a map control.
- the control unit has two parameters that it can influence, namely first the pulse width modulation within the control period to open or close the valves, and the control frequency itself.
- the control frequency is changed.
- only the information of the inclination sensor, if necessary, its temporal change is skillfully required, already with these two parameters it is sufficient to control the map defined by the pulse width and the control frequency.
- other parameters such as the altitude of the platform, or the power consumption of the pump drives, etc. with this characteristic number control.
- the control unit modulates not only the pulse width, but the control unit Frequency dependent on the angle of inclination or changed as a function of the change in the angle of inclination with time. If, due to the change in the angle of inclination, it is detected by the control unit that the intended pulse width modulation is not sufficient in order to achieve jerk-free synchronization, the control frequency is increased, which indeed leads to an increased load on the valves or of the switching valve, but Overall, the parking device spares. In this case, the control unit not only waits for the result of the measurement of the tilt sensor, but if necessary, the time derivative, ie the temporal change of the tilt angle is optionally used.
- a change in the control frequency will be considered when a first measure, namely a decrease in the pulse width has not led to a reduction in the tilt angle.
- the rule period is too long, and it is then indicated to restore the desired horizontal position of the platform by a faster regulation, so a shorter rule period.
- a volumetric flow meter is arranged, which is each connected via a measuring line to the control unit and the control unit via the continuous measurement of the volume flow to the current altitude of the platform.
- the control unit due to the determined altitude of the platform and / or controls the pump drive on the basis of the measured angle of inclination.
- the hydraulic volume flow entering or leaving the hydraulic cylinder is ultimately responsible.
- it is necessary to regulate this volume flow. This can be done on the one hand by a control of the valves provided in the hydraulic supply lines, or the pump drive is driven accordingly.
- a pump drive is provided when the individual volume flow via the two valves, which are each associated with a hydraulic cylinder takes place.
- each hydraulic cylinder has its own pump drive, which is controlled.
- a central, driven by the pump drive hydraulic pump is provided, and in the hydraulic supply to the hydraulic pump, in particular after the pressure accumulator is provided a branch to the hydraulic cylinders, and between the hydraulic pump and the branch controlled by the control unit safety valve is arranged.
- the safety valve makes it possible to decouple the hydraulic circuit of the hydraulic cylinders from the pump and the provided reservoir for the hydraulic fluid.
- the safety valve is closed, for example in emergencies, which ensures that no hydraulic fluid can flow back from the hydraulic cylinders and thus a lowering movement is prevented.
- the invention also includes additional strategies with other parameters (altitude of the platform, measured angle of inclination (a)), with which the pump drive or the valves are controlled, which also complement each other, or can be used individually.
- the control unit has a display, in particular an acoustic, optical or plain text display, or is connected to a display, in particular an acoustic, optical or a plain text display via a data line and the control unit via the display status and / or outputs error information of the parking device.
- At least two inclination sensors are arranged on different platform areas which each determine the inclination angle of the respective platform area about a longitudinal axis of the platform and feed it to the control unit.
- a first advantage of providing multiple tilt sensors is the increased reliability of the parking device. In the event of damage or failure of a tilt sensor, operation is still possible via the signals of the other tilt sensor (s). Furthermore, the determination of a deflection of the platform of the parking device is possible on the use of multiple tilt signals. When using only one inclination sensor, there is a risk that a deflection of the platform, such as may occur during heavy vehicle loading, is erroneously interpreted as the inclination of the platform.
- a corresponding counter-regulation would trigger the synchronization, which is not necessary in reality.
- the use of two inclination sensors makes it possible here that one can be detected by bending and is not interpreted as inclination.
- deflections along the longitudinal or the transverse axis of the platform can be determined.
- the longitudinal or transverse axis of the platform correspond to arrangement or retraction / extension direction of the parked vehicles.
- the control unit outputs error information and / or acts on the pump drive, in particular throttling it.
- the controller evaluates the angle information of the tilt sensor. If a borderline or even intolerable angle now appears here, the control unit already initiates appropriate measures in order to ultimately achieve a horizontal orientation of the platform again. At the same time, this operating state can be communicated to the operator via the output of a corresponding error information. This is also favorable for maintenance. It is clear that, depending on the embodiment of the invention, the control unit can not only act on the pump drive, but also influences the valves in the same way.
- the proposal is comprehensively designed, since depending on the design of the parking device, several scenarios can be used.
- error information is output, in severe cases, the pump drive can be throttled accordingly and of course the invention also includes a combination of these two complementary proposals.
- an accumulator is provided between the hydraulic pump and the hydraulic cylinder.
- the control proposed according to the invention is so sensitive that the pressure fluctuations of the hydraulic pump trigger control cycles in the latter.
- the hydraulic pump For example, a rotary circulating pump, such as a centrifugal pump or the like, have over the course of time no consistent pressure development, but have time-recurring pressure peaks. These pressure injections lead to corresponding movements of the hydraulic cylinders, which, if they are unilateral, are detected by the inclination sensor.
- pumps which, viewed over the course of time, have as homogeneous a pressure development as possible, such as, for example, relatively small-sized but high-speed pumps.
- the safe operation of the parking device depends on the reliability and accuracy of the tilt angle determined and transmitted by the tilt sensor, it is favorable to provide an improved proposal that the control device has a monitoring module for the plausibility of the measured tilt angle.
- An algorithm that monitors the plausibility of the measured angle of inclination for example, can be realized so that due to the speed or the maximum speed of the platform per unit time only a maximum inclination angle change can be made. If the measured angle of inclination now exceeds this limit, then no control action is possibly initiated by the control unit. In the future, however, maintenance will be recommended under certain circumstances, even if the tilt sensor does not deliver plausible values as a result.
- the control unit has a calibration module for setting the zero position of the mounted tilt sensor. Furthermore, the object according to the invention is achieved by a method for monitoring the angle of inclination of at least one platform of a parking device which is actively in a stationary state, the platform being arranged between two lifting devices driven by a drive each, an inclination sensor being provided on the platform, and the inclination sensor is connected to a control unit and the control unit acts via control lines on the drives or elements (eg valves) of the drives of the lifting means that the inclination angle is reduced again when the inclination angle is exceeded by a rest angle.
- a method for monitoring the angle of inclination of at least one platform of a parking device which is actively in a stationary state the platform being arranged between two lifting devices driven by a drive each, an inclination sensor being provided on the platform, and the inclination sensor is connected to a control unit and the control unit acts via control lines on the drives or elements (eg valves) of the drives of the lifting means that the inclination angle is reduced
- a platform (or parking device) actively in a moving state would be the normal state of use, namely when a user, for example, who wants to park or pick up his vehicle on a parking device, moves the platform vertically. The user is active and the platform or parking device is moving.
- a platform (or parking device) actively in a stationary state is different in that there is no user present who wishes to have (preferably vertical or substantially vertical) movement of the parking device and the platform associated therewith.
- the method proposed according to the invention monitors this stationary state (also described below as rest mode), ie it is active in this state.
- the hydraulic seat or proportional valves used for control can in practice have a certain leakage. This means that when closed, small amounts of hydraulic oil can flow through the valve. If a parking device is not moved over a longer period of time, for example during a holiday trip of the vehicle owner lasting several weeks, a significant lowering of one or both sides of the parking device can occur despite very little leakage of a hydraulic valve. Particularly critical here is when only one hydraulic valve has a leak and thus sets a strong inclination of the platform parking device in the stationary state. However, it can also happen that the valves of both hydraulic cylinders have a leakage that is the same or different.
- a sleep mode according to the invention.
- the control unit monitors the angle of inclination and its time change even when the parking device is motionless. If a significant change in angle is detected, the control unit automatically adjusts, so that there is no permanent lowering of the parking device.
- This automatic readjustment is carried out in a particularly slow readjustment of the affected hydraulic cylinder, since no operator is present in the automatic mode, which monitors the movement of the parking device.
- a particular advantage of this embodiment is that no so strong inclinations of the parking device can occur, which distort the system so strong that damage. The sleep mode thus allows a greatly improved availability of the system, even after prolonged non-use.
- lifting means hydraulic cylinders are preferably provided.
- the above-described method is advantageously feasible, in particular with a parking device as described above.
- all features and properties described in relation to the parking device or the retrofit kit but also procedures are mutatis mutandis also transferable with respect to the formulation of the inventive method or its use according to the invention and applicable in the sense of the invention ,
- the same also applies in the opposite direction, that is, structural, ie device-related features mentioned in relation to the method or the use can also be taken into account and claimed within the scope of the device claims for the parking device or the retrofit kit and also belong to the disclosure ,
- FIG. 1 is a block diagram of the parking device according to the invention.
- FIG. 2 shows a block diagram of the retrofit kit according to the invention
- Fig. 3 In a block diagram Details for
- the parking device 1 is shown schematically.
- the parking device 1 is formed by a support structure, for example a support frame 12, in which showed embodiment, two platforms 10, 11 are arranged one above the other movable.
- the platforms 10, 11 serve the lifting means or hydraulic cylinders 30,30 '.
- the platforms 10, 11 serve to receive and park motor vehicles 19.
- the motor vehicles 19 are stored one above the other in the parking device 1.
- the longitudinal axis of the parking device is perpendicular to the sheet level, the vehicles 19 can be seen here from behind.
- the parking device 1 has a width which makes it possible to park two motor vehicles 19 next to one another per platform 10, 11.
- the hydraulic cylinders 30, 30 ' are ultimately an element of the drive 39, or the drive 39 is realized in the embodiment shown here as a hydraulically acting drive.
- This hydraulic drive in this case comprises a pump drive 33, which is designed, for example, as an electric motor, and which, e.g. via a drive shaft, a hydraulic pump 35 drives.
- the hydraulic pump sucks 35 hydraulic fluid from the reservoir 301 in order to guide it via the hydraulic supply line 36 to the hydraulic cylinders 30,30 '.
- the piston moves out of the cylinder together with the piston rod (as extendible element 32, 32') and lifts the element connected to the piston rod or the cylinder housing, in this case, the platform 10, 11, on.
- the other element of the hydraulic cylinder, the cylinder housing or the piston rod are fixedly mounted in an abutment.
- the platforms 10, 11 are arranged between the two hydraulic cylinders 30,30 'is clear that both hydraulic cylinders 30,30' are acted upon in the same way with hydraulic fluid from the hydraulic pump 35. Therefore, located in the hydraulic supply line 36 is a branch 37, the first sub-branch, the hydraulic supply line 31 to the hydraulic cylinder 30 and a second sub-branch, the hydraulic supply line 31 'to the hydraulic cylinder 30', branches off.
- the safety valve 38 is connected via a control line 55 to the control unit 5.
- the safety valve 38 is closed, for example, when the platforms 10, 11 have reached a raised end position.
- the return 302 opens between the hydraulic pump 35 and the safety valve 38 in the hydraulic line 36 a.
- the hydraulic line 36 is indicated after the safety valve 38 with a double arrow to make it clear that certain areas of the hydraulic line 36 to direct the hydraulic fluid in both directions and the arrows indicate the flow direction of the hydraulic fluid.
- a closing valve 304 In the return 302 is also a closing valve 304. This is connected to the controller 5 via the control lines 501. This shut-off valve 304 is then closed when the hydraulic pump 35 delivers hydraulic fluid into the working cylinder 10, 10 '. Otherwise, hydraulic fluid would be pumped directly into the reservoir 301.
- an accumulator 303 is provided in the hydraulic supply line 36. This is located (in the conveying direction of the hydraulic fluid to be tested) after the hydraulic pump 35 and before the safety valve 38.
- This pressure accumulator 303 has several tasks. On the one hand, it provides a volume with a corresponding pressure potential, whereby the entire hydraulic system is kept under a permanent pressure. This can be realized by a corresponding device, for example a hydraulically movable stamp, which is weight-loaded.
- Another function and advantage of using the accumulator 303 is that it acts as a buffer for pressure spikes generated by the hydraulic pump. It has been observed that the pressure spikes of the hydraulic pump cause the control process to be triggered because the control responds very sensitively to such pressure-induced displacement and thus inclination angle changes.
- valves 34, 34 ' are in operative connection with the control unit 5 via the control lines 50, 50'.
- a volumetric flow meter 300,300 ' is provided. With the volumetric flow meter 300, 300 ', the volume (either absolutely or per time) that flows into or out of the hydraulic cylinder 30, 30' is measured, and this volume flow is transmitted to the control unit 5 via the measuring line 51, 51 '.
- both platforms 10, 11 each carry a tilt sensor 4.
- the tilt sensor 4 has the task of detecting an inclination of the platforms 10, 11 about the longitudinal axis (in this case at right angles to the sheet plane) and to report them to the control unit 5 via the measuring line 54.
- the inclination angle ⁇ 0 °.
- Dashed lines indicate an angle of inclination ⁇ > 0 ° on the upper platform 11, which can lead to the problems described above.
- the inclination sensor 4 reports not only during the movement of the platforms 10, 11 from a first end position to a second end position the respective measured inclination angle ⁇ to the control unit 5.
- a more durable transmission of the inclination angle of the inclination sensor 4 via the measuring line 54 to the control unit 5 also the respective end position monitored or controllable. It is correlated, for example, with the opening time of the safety valve 38, ie, while the safety valve 38 is open, the position or inclination of the platform 10, 11 is continuously monitored by the inclination sensor 4, even if now the platforms 10, 11 not due to the Drive 39 move.
- the control unit 5 suitably reducing the pulse width within the control period of the left valve 34, which is indicated by the left voltage curve 500 If one compares the two voltage curves 500, 500 'over time, the left curve 500 shows a temporary switch-off ie closing of the switching valves 34, whereas the right valve 34' remains permanently open, since here too the pulse width is 100 % of the rule period. Temporary closing of the left valve 34, the hydraulic cylinder 30 is temporarily decoupled from the volume flow, a further extension ie lifting the left part of the platform 11 is not possible.
- the display 6 is connected via the data line 52.
- the display 6 shows in a plain text display 60, the current state of the parking device 1, in particular the inclination.
- On the display 6 and a control of the parking device 1 is basically possible.
- the two keys PLUS and MINUS are indicated, with which a raising or lowering of the platforms 10, 11 is possible.
- FIG. 2 shows the use of the retrofit kit 7 likewise proposed according to the invention in a parking device 1.
- the retrofit kit 7 consists on the one hand of the inclination sensor 4, which is connected via a measuring line 54 to a control unit 5.
- the retrofit kit 7 also has a control line 53, which is to be connected to the drive 39 in a suitable manner.
- the retrofit kit 7 proposed according to the invention it is possible to equip existing parking devices 1 with an effective synchronization control.
- the inclination sensor 4 is arranged on a platform 10,11 of the parking device 1, in such a way that the inclination sensor 4 is well protected. This may be, for example, both on the bottom and top of the platform 10,11.
- the control unit 5 which is here, for example, integrally equipped with a display 6, mounted.
- the display 6 forms here, for example, in plain text from the synchronization state of the parking device 1 from. Is the tax 5, the data connection between the control unit 5 and the inclination sensor 4 is established via the measuring line 54.
- control line 53 which connects the control unit 5 to the drive 39, at the end also includes a switch or relay, for example, to interrupt the power supply of the drive 39.
- FIG. 3 shows details of the mode of operation of the control unit 5 and the details of the structure and mode of operation of the plain text display 60.
- the mode of operation of the control unit will be described below on the basis of a signal from the tilt sensor 4.
- the tilt sensor 4 repeatedly transmits signals to the control unit 5 at defined time intervals. These time segments are very short and are usually in the range of significantly less than 1 second. The length of these time intervals in which signals are transmitted or the resulting transmission frequency of the tilt sensor 4 is adjustable within certain limits.
- the transmission frequency describes here the timing in which signals of the inclination sensor flow.
- the control frequency on the other hand describes the temporal clock tion, in which the signals of the control unit to the actuators, such as the valves of the hydraulic cylinders, are transmitted.
- the signals of the tilt sensor 4 are first processed by a signal processing 75 in the control unit.
- the current inclination angle ⁇ is determined from the raw signal.
- the temporal change of the inclination angle a 'with respect to the temporally shortly before transmitted values for the inclination angle ⁇ is calculated.
- the signal processing 75 outputs the current inclination angle ⁇ and the current angle change a 'as processed output signals of a sensor.
- the current inclination angle ⁇ is transferred as an actual value directly to the actual controller 56 and finds there directly input into the control of the parking device.
- the current angle change a ' serves as input to a selection unit 57 for selecting a characteristic curve for the controller 56.
- This selection unit 57 first determines the difference between the actual angle change and the time a' to a desired value of the angle change.
- This setpoint is provided by the setpoint unit 59.
- the difference between the actual value and the nominal value of the angle change a ' is then the basis for selecting a current characteristic for the controller 56.
- the difference between the actual value and the nominal value of the angle change a' is stored by the selection unit 57 with values from a characteristic map stored in the memory 58 is compared.
- the characteristic curve which best matches the actual desired-actual difference of the change in the inclination angle a ' is selected and transmitted to the controller 56 as a current characteristic curve.
- the map used was determined empirically in advance and is based on experiments in which parameters such as temperature temperature, loading of the parking device or operating time were systematically varied.
- the control response of the controller 56 is thus influenced by the temporal change in angle a 'by each one, to the current temporal angle change a' tuned characteristic is used for control.
- a' tuned characteristic is used for control.
- the signals of the inclination sensor 4 are used as input to the control unit 5, by the stored map in combination with the temporal angle change a 'an adapted control of the parking device to various physical properties or parameters such as the oil temperature of the hydraulics possible. It is particularly advantageous that no further sensors and inputs are required in the control unit for these various physical influence parameters.
- FIG. 3 shows, for example, a temperature sensor 70, a pressure sensor 71 and a volumetric flow meter 300, 300 'for determining the flowing quantity of hydraulic oil.
- the signals from these sensors are used as inputs to the selection unit 57.
- the signal from the volume flow meter 300, 300 ' is also simultaneously fed to the controller 56 in order to Thus, for example, to transmit the altitude of the platform 10,11.
- the setpoint value unit 59 that is currently valid for the regulation of the controller 56 is made available by the setpoint unit 59.
- the nominal value for the inclination angle ⁇ is 0 ° in normal operation, since a synchronization without inclination is desired. However, use cases are also conceivable where the setpoint value of the inclination angle ⁇ is deliberately increased to, for example, 5 ° in order to drain accumulated water on the platform.
- the setpoint unit 59 also predefines a current setpoint value for the temporal angle change a '. This current setpoint value for the temporal angle change a 'is made available to the selection unit 57 for the characteristic curve and used there to determine the difference between setpoint and actual value and thus used for the adapted selection of a characteristic curve for the controller 56.
- the controller 56 then regulates the control values for the two valves 34, 34 'on the basis of a desired value from the setpoint unit 59, an actual value for the inclination angle ⁇ from the signal processing 75 and a characteristic curve from the selection unit 57, this selection unit 57 in turn being dependent on the current one temporal angle change a 'is influenced.
- the target value unit 59 is controlled by the plain text display 60 with respect to the target values for the inclination angle a and the temporal change of the inclination angle a '.
- This plain text display 60 which also serves as an input unit, has various input elements that can be used to operate the parking device.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014101374 | 2014-02-04 | ||
DE102015100132.2A DE102015100132A1 (de) | 2014-02-04 | 2015-01-07 | Parkvorrichtung für Kraftfahrzeuge |
PCT/EP2015/052346 WO2015118034A1 (de) | 2014-02-04 | 2015-02-04 | Parkvorrichtung für kraftfahrzeuge |
Publications (2)
Publication Number | Publication Date |
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EP3102757A1 true EP3102757A1 (de) | 2016-12-14 |
EP3102757B1 EP3102757B1 (de) | 2020-04-15 |
Family
ID=53547182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15710435.7A Active EP3102757B1 (de) | 2014-02-04 | 2015-02-04 | Parkvorrichtung für kraftfahrzeuge |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3102757B1 (de) |
AU (2) | AU2015214938A1 (de) |
DE (1) | DE102015100132A1 (de) |
WO (1) | WO2015118034A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106593041A (zh) * | 2017-01-22 | 2017-04-26 | 桂林理工大学 | 一种斜坑式停车场 |
FR3066771B1 (fr) * | 2017-05-24 | 2023-11-03 | Db Ind | Terrasses hydrauliques escamotables a fonctions multiples |
CN108168599B (zh) * | 2017-12-07 | 2020-10-13 | 沈阳清静科技有限公司 | 一种智能立体停车装备的安全运行检测方法 |
CA3126938C (en) | 2019-01-22 | 2024-01-16 | BendPak, Inc. | Three-level vehicle lift |
CN115095205B (zh) * | 2022-06-24 | 2023-12-26 | 普智城市科技(深圳)有限公司 | 一种基于云服务的智能型立体停车设备 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2834498B2 (de) * | 1978-08-07 | 1980-07-03 | Mageba S.A., Buelach (Schweiz) | Garage zum Abstellen von Fahrzeugen übereinander |
DE4409150A1 (de) * | 1994-03-17 | 1995-09-21 | Bosch Gmbh Robert | Hydraulischer Antrieb für eine Doppelstock-Parkgarage |
DE29521675U1 (de) * | 1995-08-16 | 1998-03-05 | Viessmann GmbH & Co, 95030 Hof | Parkvorrichtung |
DE29710755U1 (de) * | 1997-06-19 | 1998-01-08 | Zapf GmbH + Co., 95448 Bayreuth | Hydraulisch höhenverstellbare Hubeinrichtung für Kraftfahrzeuge |
-
2015
- 2015-01-07 DE DE102015100132.2A patent/DE102015100132A1/de not_active Withdrawn
- 2015-02-04 AU AU2015214938A patent/AU2015214938A1/en not_active Abandoned
- 2015-02-04 WO PCT/EP2015/052346 patent/WO2015118034A1/de active Application Filing
- 2015-02-04 EP EP15710435.7A patent/EP3102757B1/de active Active
-
2019
- 2019-06-21 AU AU2019204369A patent/AU2019204369B2/en active Active
Also Published As
Publication number | Publication date |
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AU2019204369B2 (en) | 2021-04-01 |
AU2015214938A1 (en) | 2016-09-22 |
EP3102757B1 (de) | 2020-04-15 |
AU2019204369A1 (en) | 2019-07-11 |
WO2015118034A1 (de) | 2015-08-13 |
DE102015100132A1 (de) | 2015-08-06 |
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