• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Overload warning device for a trailer brake in a trailer brake system adjusted to a set deceleration. …<??>A known overload warning device monitors the temperature of the trailer brake as a measurement of its load and by means of a temperature comparator emits a warning signal when a temperature occurs which is characteristic of an overload. The disadvantage to this is the time lag of the temperature monitoring. The known overload warning device therefore has the disadvantage that it only responds once the trailer brake may have already sustained damage. …<??>The invention proposes to compare the operating energies fed to the tractor vehicle brake and those fed to the trailer brake, to derive a comparative value therefrom and to emit the warning signal when the comparative value varies at a predetermined critical rate of change or faster than this. The invention thereby utilises the rapid fall in braking force accompanying the brake overload and the rapid increase in energy caused by this for readjusting the brake deceleration. …<??>The invention may advantageously be used for the detection of "fading" of the trailer brake. …<IMAGE>…
    公开号:SU1713431A3
    申请号:SU884613139
    申请日:1988-12-16
    公开日:1992-02-15
    发明作者:Фельдманн Иоахим；Шульт Манфред
    申请人:Вабко Вестингхауз Фарцойгбремзен Гмбх (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to pneumatic brake drives for road trains.
    The purpose of the invention is to increase traffic safety.
    FIG. 1 shows a block diagram of a two-unit vehicle with a device for warning of trailer brake overload; in fig. 2 is the same for a different type of vehicle.
    The vehicle (Fig. 1) consists of t 1 and trailer 2. Trailer 2 contains a power supply controlled brake 3, which is installed in a brake drive consisting of a receiver 4 and an air distributor 5 connected by line 6 to the output of regulator 7 measure the energy supplied to the trailer brake circuit.
    T hach 1 contains a power supply controlled brake 8, which is a component of the brake drive hatch 1, consisting of a receiver 9 and control device 10. - -.
    The trailer brake drive is a control loop, the adjustable value of which is the deceleration of the trailer braking, and its setpoint is created by applying energy to the brake 8 tons of damp, i.e. by controlling it. Thus, the deceleration of braking caused by the brake control 8 t, caused by brake control, and the power supply to the trailer brake 3, are measured in such a way that the braking deceleration of the trailer basically corresponds to the slowing down of the traction control. For this purpose, a traction hitch 11 is used between the trap with the hatch 1 and the trailer 2, which can be carried out in this case in the directions of the thrust (Z) and pushing (S) of the trailer 2 with only a short circuit. The compression and tension force sensor 12 in node 11 is made in the form of a sensitive element, recording the force acting in the thrust directions Z and pushing S. It delivers a signal corresponding to the specified force to the output of block 13. The latter generates a control signal to the controller input 7, when the signal from sensor 12 has a predetermined value or when there is a danger of going beyond the permitted limits of the predetermined value. Such a predetermined value can be selected depending on the special properties of the vehicle in the directions of the pull of Z and S treads.
    The regulator 7 is connected to a control device of 10 tons of gacha 1 and through line 6 to the air distributor 5 of trailer 2. (
    The regulator 7 is made so that, in accordance with the output signal of the block 13, it
    reduces or increases the amount of control energy supplied to them in line 6.
    To control the brake 8 t gacha 1 and
    With the brake 3 of the trailer 2, the driver of the vehicle arbitrarily acts on the control device 10 by means of a certain force (force of influence) or a certain path (path of influence).
    0 Then the control device 10 supplies energy from the receiver 1 to the brake of 8 tons of gauge 1, the strength of which depends on the force or path of the impact. At the same time, by means of a force or a path that influences the energy of the energy, the control device 10 tons of gauge 1 controls the regulator 7, which transfers the appropriate control energy through line 6 to the air distributor 5
    0 of the trailer 2. The air distributor 5 from the receiver 4 supplies the energy of a corresponding force to the brake 3. At this time, the sensor 12 sends a signal to the block 13. If the signal accepts a predetermined value or occurs
    5 the danger of leaving the permissible range of this value, the block 13 sends a signal to the regulator 7 of the trailer 2, on the basis of which the regulator 7 increases or decreases depending on the force or the path
    0 control energy in line 6 to
    as long as the signal does not save the specified
    value or does not lose addiction to you. go beyond the permissible range.
    In addition, the proposed device
    5 is provided with a device for warning that the brake 3 of the trailer 2 is overloaded. It consists of the first 14 and second 15 energy magnitude sensors and the comparison unit 16. The first sensor 14 monitors the force applied to the brake 8 tons of gacha 1 energy and supplies the comparison unit 16 with a signal corresponding to this force. The second sensor 15 monitors the force applied to the brake 3 of the trailer 2 energy and supplies to the comparison unit 16
    5 corresponding to this strength signal. Comparison unit 16 is designed so that of these signals it forms a relative value and gives a warning signal if the relative value changes with
    0 given a critical or higher rate of change.
    Brakes, including brake 3 of the trailer, exhibit a significant reduction in braking force within the allowable load for a given force of energy supplied. Using the indicated control loop to slow the trailer braking, the braking drive of the trailer 2 compensates for such a drop in the braking force of the brake 3 of the trailer 2 by dramatically increasing the energy supplied. The corresponding increase in trailer energy signal gain is used by the overload warning device. Thus, this sharp decrease in the braking force — the fading of the trailer 3 brake — is characterized by a significant increase in the trailer energy signal.
    If the trailer brake is fading, then an 8 ton gachi brake can also exhibit fading at the same time or operate normally. In the first case, because of the reduction in the braking force of the brake 8 t of gacha, the brake force of the brake 3 of the trailer 2 can be completely or partially prevented, so that in this case the force applied to the brake 3 of the trailer 2 does not increase or increase slightly. In this case, the relative value formed from the signals remains unchanged or qHO changes at a rate less than the critical one. Thus, in this case, the overload warning device does not work, which is required because the driver of the vehicle notices fading as a weakening retarding of braking, as in a conventional trailer brake installation. In the second case, the amplification of the trailer energy signal leads to a correspondingly large change in the relative value energy generated from the signals, since the energy signal of the towing tractor remains largely unchanged. Comparison unit 16 gives a warning signal when the rate of change of the relative value reaches or exceeds a predetermined critical value. Depending on the performance of block 16, the determination of the absolute change in the relative value in the direction of increasing or decreasing values is related to whether the energy signal of the trailer enters the numerator or the denominator of the relative value.
    The overload warning device is intended to provide immediate warning indications.
    As a tool for evaluating a block alert. 16 comparisons in this case are used optical or sound fixture 17 and driver 18 of the control signal for unloading the brake. The warning device 17 converts the warning signal into an optical or acoustic indication, and the driver 18 is designed so that it forms a control signal from the preferred signal,
    by means of which it acts on regulator 7, limiting the control energy supplied to highway 6 to a maximum value and / or reducing it. With
    the occurrence of a warning signal shaper 18 through regulator 7 regulates the flow of energy into the brake of the trailer TeiK, that the force supplied to the brake of the trailer of energy is limited to the maximum
    0 value and / or reduced based on the available value. Thus, the warning device ;; 1 for overloading also serves as a device, as overload protection for brake 3 of the trailer.
    5 The use area of the former 18 is limited due to the automatic effect on the braking process, since this is unacceptable in many cases.
    0 Comparison unit 16, made on known electronic components, operates as follows. When acting on the control device, Yu turns on an integrated clock generator
    5 pulses. Taking into account the clock generator determined by the generator, the first 14 and second 15 sensors interrogate the 15 sensors and form their relative value from their signals. The relative value formed at the start of the cycle is stored in the integrated memory and compared with the relative value formed at the end of the cycle. If the relative value formed at the end of a bar
    5 deviates by a predetermined critical value or more, then the warning signal circuit is closed through the integrated switch. Emergency warning loop closure
    0 deviation of relative values can be positive or negative. This depends, therefore, introducing block 16 of the comparison signal of the trailer energy into the numerator or denominator of the relative value.
    5 In addition, the comparison unit 16 may be executed and that the clock pulse generator is turned on only when the Trailer Energy Signal reaches a predetermined value. Such an embodiment of the comparison unit allows to exclude the possibility of incorrect operation
    It is also possible that the comparison unit 16 is such that after the end of the activation of the control
    5 devices 10 tons of gacha, it works for a specified time. In this case, in the case of successive short actions on the brake (i.e., when braking with jerks), the beginning of the stroke and its end enter into various stages of the process
    braking. As a result, the overload warning device also operates in the event of such an effect on the brake.
    In addition, the comparison unit can be designed so that it detects the difference between the energy signals at the end and the beginning of the time step and closes the warning signal circuit when the critical difference is exceeded.
    According to the diagram in FIG. 1, the first sensor 14 measures the energy directly supplied to the brake 8 tons of gauge 1, while the second sensor 15 measures the energy supplied to the brake 3 of the trailer on line 6, i.e. the first sensor 14 serves to determine the force acting in the brake energy, while the second sensor 15 is mounted on a control device used to determine the force applied to the brake 3 of the trailer 2 energy. The second sensor 15 can be installed in the brake installation of the trailer (similar to the first sensor 14), and the first sensor 14 - in the brake installation of the trailer (similar to the second sensor 15).
    When the device according to FIG. 2, the measurement of the deceleration braking rate 1 is carried out by the deceleration sensor 19, which outputs a deceleration ratio signal corresponding to the deceleration deceleration. In order to determine the trailer braking, a braking sensor 20 is provided which outputs a trailer braking signal corresponding to the braking. These slowdown signals are fed to the evaluation electronic unit 21, which, depending on the version, generates a control signal when the trailer slowdown signal is rejected in general, or only by a predetermined value of the slowdown signal.
    The trailer braking device 22 receives the control signal issued by the electronic evaluation unit 21 and, using this signal, regulates the force of energy supplied to the trailer brake 3 from the receiver 4. Thus, the braking force generated by the trailer brake 3 is adjusted so that, except for unavoidable tolerances, trailer braking corresponds to the deceleration of braking t gacha
    In addition, according to the scheme of FIG. 2, the second sensor 15 of the overload warning device is mounted on the power line leading to the brake 3 and, similarly to the first sensor 14, directly determines the force of the supplied energy.
    The deceleration sensor 19 must be mounted on a tractor and the deceleration sensor 20 on the trailer, while the comparison unit 16 and the electronic evaluation unit 21 are located between the tractor 1 and the trailer 2.
    权利要求:
    Claims (2)
    [1]
    1. Device for warning of overload for at least one energy-controlled brake installed in the brake drive of the trailer, containing sensors for the amount of energy regulated by the brake
    the trailer and into the brake circuit of at least one brake of the driving link connected to the trailer with a hitch coupling unit, which is an accelerator in front of the trailer tach or following the trailer pusher, and a compression and tension force sensor in the ht hitch hitch node, and the force sensor is connected to the input of the block that generates the control signal when the force of the coupling go and coupling is exceeded
    the threshold value, while the output of the specified block is connected to the control input of the regulator of the amount of energy supplied to the trailer brake circuit, and the sensors of the amount of energy supplied to
    The trailer brake and the brake link of the master link are connected to the inputs of the comparison unit, characterized in that, in order to improve traffic safety, the comparison unit is made with a circuit defining the relationship between the values of the signals from the energy sensors and issuing a warning signal to the output of the comparison unit according to at least when changing the value of the specified value with a given
    critical speed.
    [2]
    2. The device according to claim 1, in accordance with the fact that it is equipped with a driver for a control signal, the input of which is connected to the output of the reference unit and the output to the control input of the regulator of the amount of energy supplied to the trailer circuit .
    fig 2
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    同族专利:
    公开号 | 公开日
    EP0320602B1|1991-12-18|
    DE3742996A1|1989-06-29|
    DE3867051D1|1992-01-30|
    JPH01237255A|1989-09-21|
    EP0320602A2|1989-06-21|
    US5132664A|1992-07-21|
    EP0320602A3|1990-03-07|
    ES2027363T3|1992-06-01|
    JP2884089B2|1999-04-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2752641A1|1977-11-25|1979-05-31|Bosch Gmbh Robert|DRAWBAR FORCE CONTROL DEVICE|
    SU925716A1|1980-07-16|1982-05-07|Белорусский Ордена Трудового Красного Знамени Политехнический Институт|Electropneumatic brake system of vehicle with traction coupling device|
    DE3345694C2|1983-12-17|1996-04-04|Teves Gmbh Alfred|Hydraulic brake system|
    DE3428192C2|1984-07-31|1994-05-11|Iveco Magirus|Wagon train braking device|
    JPH036019B2|1984-07-31|1991-01-29|Nissan Motor|
    DE3502825A1|1985-01-29|1986-07-31|Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover|OVERLOAD PROTECTION AND / OR WARNING DEVICE|
    DE3524932A1|1985-07-12|1987-01-15|M Dipl Ing Szmigier|Automatic traction adjustment for optimising the braking behaviour of tractor and trailer vehicles|
    DE3603963A1|1986-02-07|1987-08-13|Knorr Bremse Ag|AIR BRAKE DEVICE FOR VEHICLE VEHICLES|
    FI75122C|1986-03-20|1988-05-09|Jorma Saramo|Apparatus for automatic fitting of the compressed air brakes of a motor driven vehicle combination.|DE3930571A1|1989-09-13|1991-03-14|Wabco Westinghouse Fahrzeug|METHOD FOR MONITORING A BRAKE DEVICE FOR OVERLOAD|
    DE4210992C3|1992-04-02|2000-10-26|Telefunken Microelectron|Method for checking a pressure-operated braking device|
    DE4215341A1|1992-05-09|1993-11-11|Wabco Westinghouse Fahrzeug|Method for monitoring the at least one trailer brake of the trailer of a vehicle train for overload|
    DE4215340A1|1992-05-09|1993-11-11|Wabco Westinghouse Fahrzeug|Method for monitoring the at least one motor vehicle brake of the motor vehicle of a vehicle train for overload|
    DE4217247A1|1992-05-25|1992-10-15|Rolf Keller|Tilt monitoring system esp. for heavy goods vehicle - is based on orthogonal potentiometers acted upon by damped pendulum responsive to longitudinal and transverse tilts|
    US5602482A|1995-09-07|1997-02-11|Gutierrez; Alejandro|Trailer systems tester|
    DE19603909B4|1996-02-03|2006-02-16|Robert Bosch Gmbh|Method and device for checking the bleeding state of a hydraulic brake system of a vehicle|
    US5920128A|1997-02-27|1999-07-06|Grote Industries Inc.|Trailer ABS monitoring and warning system|
    US5844474A|1997-07-03|1998-12-01|Saling; Brian Jay|Vehicle overload sensor|
    DE19831286A1|1998-07-13|2000-01-20|Bosch Gmbh Robert|Device for recording measured quantities of a front end and / or of measured quantities of a trailer or semi-trailer that is operatively connected to a front end|
    DE10219040A1|2002-04-29|2003-11-13|Wabco Gmbh & Co Ohg|Method and arrangement for applying brake energy in electronically controlled brake systems of vehicle combinations comprising at least one tractor and trailer vehicle|
    DE10219067A1|2002-04-29|2003-11-20|Wabco Gmbh & Co Ohg|Method and arrangement for applying brake energy in electronically controlled braking systems of vehicles|
    DE10219039A1|2002-04-29|2003-11-13|Wabco Gmbh & Co Ohg|Method and arrangement for monitoring vehicle brakes of electronically controlled brake systems of vehicles and vehicle combinations for overload|
    US20060097569A1|2004-11-05|2006-05-11|Eberling Charles E|Trailer brake status indication|
    US20070102996A1|2005-11-10|2007-05-10|Meritor Wabco Vehicle Control Systems|Hydraulic full power brake system for trailers|
    DE102007024310A1|2007-05-24|2008-11-27|Wabco Gmbh|Method for assessing the compatibility of brake systems of a vehicle combination and device for assessing compatibility|
    DE102009031851B4|2009-07-03|2021-02-11|Dipl. Ing. Tietjen Gmbh|Method for braking a tractor-trailer combination and device|
    ITMO20120320A1|2012-12-21|2014-06-22|Cnh Italia Spa|METHOD AND APPARATUS FOR CHECKING THE BRAKING OF A TRAILER TRAILER COMBINATION.|
    US9550399B2|2012-12-21|2017-01-24|Intelli-Hitch, Llc|Tow hitch with brake sensor system and method of use|
    US20140183841A1|2012-12-21|2014-07-03|Dustin Jones|Tow Hitch System with Brake Sensor|
    CN108016439A|2016-11-01|2018-05-11|法乐第网络科技有限公司|Trailer householder method, device, system and electronic equipment|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19873742996|DE3742996A1|1987-12-18|1987-12-18|OVERLOAD WARNING DEVICE FOR A TRAILER BRAKE|
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