EP3582982A1 - Verfahren zum bestimmen des belastungszustandes einer blattfeder - Google Patents
Verfahren zum bestimmen des belastungszustandes einer blattfederInfo
- Publication number
- EP3582982A1 EP3582982A1 EP18734166.4A EP18734166A EP3582982A1 EP 3582982 A1 EP3582982 A1 EP 3582982A1 EP 18734166 A EP18734166 A EP 18734166A EP 3582982 A1 EP3582982 A1 EP 3582982A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- leaf spring
- spring
- vehicle
- region
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/04—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
- G01L1/044—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs of leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/112—Leaf spring longitudinally arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/60—Load
Definitions
- the invention relates to a vehicle with a chassis and a wheel suspension, comprising at least one leaf spring, e.g. Parabolic spring or handlebar spring, and at least one sensor.
- leaf spring e.g. Parabolic spring or handlebar spring
- the invention relates to a method for determining the load condition of a leaf spring by means of a sensor.
- a sensor arranged on an air pressure spring measures the pressure of the air spring bellows.
- the additional sensor located near the spring also measures the distance traveled by a wheel of the vehicle between unloaded and loaded position.
- the deformation of the spring can not be measured by the sensor, so that direct conclusions can not be made by the deformation of the spring.
- Vehicle spring is connected, is measured.
- the sensor is mechanically connected to the bracket. Again, the sensor can not measure the deformation of the spring.
- Vehicle spring by means of a sensor are known. From EP 2 842 777 A1 it is known to determine the load state of a vehicle spring by means of an optical fiber.
- a sensor comprises a light source, a detector and a cable which comprises the optical fiber. Deformation of the vehicle spring is determined by deformation of the optical fiber by measuring altered light transmission properties. For this, the optical fiber on the
- Vehicle spring be arranged.
- the invention is based on the object to provide a vehicle and a method for determining the load condition of a vehicle spring by means of a sensor which do not have these disadvantages. This task is solved with a vehicle, which the
- the senor has a measured variable which closes on the loading state of the leaf spring
- the load condition of a leaf spring is determined by means of a sensor in that the sensor has a measured variable which closes on the load condition of the leaf spring
- the senor analyzes the position of the region of the leaf spring in the measuring range, in particular the
- Chassis is arranged.
- the senor is an acoustic sensor, in particular a sound-wave-generating, active, acoustic sensor, preferably an ultrasonic wave-generating, active, acoustic sensor.
- the senor is in communication with a means which
- the associating agent may be calibrated to a particular material, such as spring steel, and provide information about interfaces of the material.
- the senor is in communication with a means which
- spring steel or composite material and at least a second material, such as a dirt deposit on the leaf spring, which reflect the corresponding sound waves, and each assigns a distance to the sensor.
- a second material such as a dirt deposit on the leaf spring, which reflect the corresponding sound waves, and each assigns a distance to the sensor.
- the senor is in communication with a memory in which the from
- Sensor measured data can be stored, and / or is in communication with a transmitter with which the measured data can be sent to a storage and / or evaluation and / or with an output unit, such as an optical or
- acoustic indicator communicating.
- the sensor with a GPS system in
- Connection stands with which load conditions of the leaf spring can be transmitted and possibly displayed.
- the driver may be visually and / or acoustically displayed that the current speed is too high in the current load state by an optical and / or acoustic display is generated, indicating that the current load condition should be slowed down.
- an optical and / or acoustic display is generated, indicating that the current load condition should be slowed down.
- spring steel or composite material For example, spring steel or composite material, and
- At least one second material for example a dirt deposit on the vehicle spring, which reflects the corresponding sound waves, and one each Distance to the sensor can be assigned, the measured values can be compared with data specified in a table of a memory.
- each leaf spring may be associated with at least one sensor.
- at least one leaf spring, in particular each leaf spring, associated with two or more sensors are provided.
- Leaf springs have two end portions, in which a means for connecting the corresponding spring leaf to the chassis or with connection parts of the suspension can be provided, and a clamping region, in which they are connected to an axle of the vehicle, on. In most leaf springs, a main tension area is provided between the clamping area and both end areas. There are also handlebar springs, in which only a main voltage range is provided between the clamping area and an end area. In the context of the invention, it is preferred if at least one sensor is assigned to the or each main voltage range. In the context of the invention, each vehicle wheel may be associated with a leaf spring, i. that in the region of each wheel of a leaf spring at least one sensor is associated. Depending on the installation position of the
- Leaf spring in the vehicle the leaf spring to the left and right of the axis or in front of and behind the axis in each case at least one
- the respective axle load i. the weight bearing on an axle can be determined.
- axle weights and thus also the total weight both in the static state, ie in the resting state of the vehicle), as well as in the dynamic state, ie during driving, are determined.
- the static state of the vehicle can thus be determined, for example, whether the vehicle may continue to be loaded or not.
- the dynamic state of the vehicle can thus be determined, for example, whether the vehicle may continue to be loaded or not.
- the driver to be informed that he has to drive slower.
- Embodiments are shown. It shows:
- Fig. 1 parts of a first embodiment of a
- Fig. 2 parts of a second embodiment of a
- Fig. 3 is a similar to FIG. 2 embodiment with a
- Fig. 4 shows the embodiment of FIG. 2, wherein the
- Multi-leaf spring is shown under a load occurring during a braking operation
- inventive vehicle with a control spring under nominal load.
- a part of a chassis 1 of a vehicle is shown.
- Under chassis is a vehicle frame or a chassis understood, in which a suspension, which in the Fig. 2 to 6 can be seen, is arranged.
- a leaf spring 2 is provided below the chassis 1, a leaf spring 2 is provided. According to Fig. 1, the leaf spring 2 on a spring leaf.
- the leaf spring 2 has at its two end regions in each case a means 3 for connecting the spring leaf to the chassis 1 or with connection parts of the suspension, which are designed as a rolled eye.
- the leaf spring 2 deforms under load such that it exerts a so-called "S-blow"
- a damper 4 is provided on the chassis. This "S-beat" is shown schematically in Fig. 1, wherein the shape of the leaf spring 2 at nominal load (solid line), at maximum load (dashed line) and the load at which the
- Leaf spring 2 breaks (dash-dotted line) is shown.
- the executed sensor 5 with a measuring range 6 is arranged.
- the ultrasonic sensor analyzes the density of the materials in the measuring range 6 and measures the distance between them
- the sensor 5 is connected to a
- Means 7 a data store or a data transmitter or a
- Evaluation unit or an optical / acoustic output unit may be.
- Several such means 7 may be provided.
- the means 7 may also be a means that reflected
- Sound waves at least a first material, for example, the material of the leaf spring 2, and optionally at least a second material, such as a dirt deposit on the leaf spring 2, which reflect the corresponding sound waves, and each assigns a distance to the sensor 5.
- a first material for example, the material of the leaf spring 2
- a second material such as a dirt deposit on the leaf spring 2
- Embodiments according to FIGS. 2 to 6 are also provided. Thus, the load condition of the leaf spring 2 can be determined.
- FIG. 2 to 4 an analogous to Fig. 1 "S-beat" of a leaf spring 2 is shown with four spring leaves, the shape of the leaf spring 2 at nominal load (Fig. 2), at maximum load (Fig. 3) and at a load occurring in a braking operation (Fig. 4).
- the leaf spring 2 is a
- the leaf spring 2 has a clamping region 8 and is in
- Clamping region 8 via a connecting device, in this case via U-shaped bolts 9, connected to a wheel axle 10.
- the area in front of the axis 10 is referred to as the front area and the area behind the axis 10 as the rear area.
- the leaf spring 2 bends down under increasing load in the front and down in the rear area.
- a sensor 5 as has been described with reference to FIG. 1, is shown in the rear region.
- a multi-leaf spring is shown as a leaf spring 2, which is connected in a clamping region 8 with a wheel axle 10.
- a sensor 5, as described in Fig. 1, is provided both in the front region and in the rear region.
- Fig. 6 shows a control spring as a leaf spring 2, in a Clamping area 8 is connected to a wheel axle 10. At one end, the leaf spring on a means 3 for connecting the spring leaf to the chassis 1 and with connection parts of the suspension, which is designed as a rolled eye. On the chassis 1, a sensor is arranged, which is the area
- Air bellows 11 is arranged, wherein between this end portion and the clamping portion 8, an oppositely bent portion is provided.
- the leaf springs 2 have two main stress regions 12, wherein in each case a main stress region 12 is provided between the clamping region 8 and an end region of the leaf spring 2.
- a vehicle In order to measure the load condition of a leaf spring 2, a vehicle comprises a chassis 1, a suspension, at least one leaf spring 2, e.g. Parabolic spring or handlebar spring, and at least one sensor 5 on.
- the sensor 5 detects one on the
- the sensor 5 has a measuring range 6 and a portion of the leaf spring 2 is arranged in the measuring range 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA265/2017A AT520162B1 (de) | 2017-06-22 | 2017-06-22 | Verfahren zum Bestimmen des Belastungszustandes einer Blattfeder |
| PCT/EP2018/066485 WO2018234414A1 (de) | 2017-06-22 | 2018-06-20 | Verfahren zum bestimmen des belastungszustandes einer blattfeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3582982A1 true EP3582982A1 (de) | 2019-12-25 |
Family
ID=62748968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18734166.4A Withdrawn EP3582982A1 (de) | 2017-06-22 | 2018-06-20 | Verfahren zum bestimmen des belastungszustandes einer blattfeder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3582982A1 (de) |
| AT (1) | AT520162B1 (de) |
| WO (1) | WO2018234414A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166533B (zh) * | 2021-10-21 | 2024-04-05 | 东风汽车底盘系统有限公司 | 一种复合材料副簧模拟装车台架试验装置及试验方法 |
| DE102022131957A1 (de) * | 2022-12-02 | 2024-06-13 | Zf Cv Systems Europe Bv | Verfahren zur Messung der Karosseriehöhe |
| DE102023100933A1 (de) * | 2023-01-17 | 2024-07-18 | Zf Cv Systems Europe Bv | Verfahren, Steuergerät und Steuergerätesystem zur Bestimmung einer Masse eines Zugfahrzeuges und/oder eines Anhängers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997024590A1 (en) * | 1995-12-18 | 1997-07-10 | Sensortech L.L.C. | Stress and load variation detector |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08207544A (ja) * | 1995-02-08 | 1996-08-13 | Hino Motors Ltd | 駆動車軸重付加装置 |
| WO1996036521A1 (fr) * | 1995-05-16 | 1996-11-21 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Dispositif pour la direction assistee repondant au poids du vehicule |
| JP2001343277A (ja) * | 2000-06-01 | 2001-12-14 | Yazaki Corp | 車両用荷重測定装置 |
| JP2002248985A (ja) * | 2001-02-22 | 2002-09-03 | Mitsubishi Motors Corp | 車両用灯具の照射方向制御装置 |
| SE519500C2 (sv) * | 2001-06-21 | 2003-03-04 | Scania Cv Ab | Anordning för ett lastfordon och ett lastfordon |
| CN205185767U (zh) * | 2015-12-19 | 2016-04-27 | 闫海龙 | 一种石油特种车辆用的板簧结构 |
| CN106644008A (zh) * | 2016-11-14 | 2017-05-10 | 上海电机学院 | 多功能车载超载监测系统 |
-
2017
- 2017-06-22 AT ATA265/2017A patent/AT520162B1/de not_active IP Right Cessation
-
2018
- 2018-06-20 EP EP18734166.4A patent/EP3582982A1/de not_active Withdrawn
- 2018-06-20 WO PCT/EP2018/066485 patent/WO2018234414A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997024590A1 (en) * | 1995-12-18 | 1997-07-10 | Sensortech L.L.C. | Stress and load variation detector |
Also Published As
| Publication number | Publication date |
|---|---|
| AT520162B1 (de) | 2022-12-15 |
| WO2018234414A1 (de) | 2018-12-27 |
| AT520162A1 (de) | 2019-01-15 |
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