• 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:
    A anti-jackknifing device for a motor vehicle having two articulated units with a friction brake therebetween has a hydraulic control means for controlling the torque applied by the brake. A hydraulic sensor activating cylinder with two working spaces senses the jackknifing angle between the two units. A three-position four-way reversible valve is connected to the hydraulic brake activating cylinder, between a third port and a check valve and the valve in its first position connects its first and third ports and its second and fourth ports and in its second position connects its first and fourth ports and its second and third ports. A steering angle sensor is provided which determines the desired jackknifing angle therefor. In response to the deviation of the actual jackknifing angle from the desired jackknifing angle, the valve is actuated into its first position when the actual jackknifing angle is overdriven in the clockwise direction and into its second position when the actual jackknifing angle is overdriven in the counter-clockwise direction.
    公开号:SU1210658A3
    申请号:SU823398942
    申请日:1982-02-19
    公开日:1986-02-07
    发明作者:Ивони Йожеф；Ратшко Иштван；Караси Дьердь；Мади Ене
    申请人:Аутоипари Кутато Интезет (Инопредприятие)；Икаруш Карошсериа Еш Ярмюдьяр (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to the automotive industry, in particular, to a device affecting the folding angle of articulated road trains having front steerable wheels.
    The purpose of the invention is to increase the safety of work by providing a more correct angle for folding the train.
    Fig. 1 is a block diagram of a device for influencing the folding angle of articulated auto. trains with front steering wheels; Fig. 2 shows the hydraulic circuit and the control unit of the device. one
    Articulated auto train consists of two transport sections. primary 1 and secondary 2 connected by a hinge 3. The front axle 4 of primary section 1 is a steering axis. The angle of rotation of the steerable front wheels 5 is indicated by "1, the folding angle of the primary 1 and secondary sections is j5.
    The steering device is (not shown) front, axis 4 is connected to the angle of rotation 6 of the steering wheels, and between both parts of the vehicle primary section 1 and secondary section 2 is installed sensor 7 of the angle of folding sections of the train. The sensors 6 and 7 are connected to the angular position analysis unit 8, which, as an output signal, gives the direction of deviation of the actual folding angle (from the front steering wheel 5 of the folding angle, corresponding to the angle of rotation). Referring to the steering angle oi of the steerable front wheel 5, the folding angle v is the stationary folding angle ip, which is self-adjusting while maintaining the constancy of the steering angle oi on a flat road when the wheels move without skidding. Between the primary 1 and the secondary 2 sections, there is a working hydraulic cylinder 9 that senses the direction of change in the folding angle, which, together with the angular position analysis unit 8, is connected to the hydraulic control unit 10
    The control unit 10 is connected to a hydraulic friction brake 11,
    in which the friction elements that are displaced one against the other are attached to the primary section 1, the other to the secondary section 2.
    The rotation angle sensor 6 of the steering wheels is provided with a slider 12, which is connected to a steering device (not shown). Sensor 7 of the angle of folding sections of the train
    it is equipped with control cams 13. The housing 14 of the working hydraulic cylinder 9 is attached to the primary section, and its rod 15 is connected to the secondary section. Hydraulic control unit 10
    made in the form of a three-position hydraulic four-way valve, the first line 16 of which is connected by pipeline 17 to the piston cavity 18 of the hydraulic working cylinder 9, and the second line 19 through pipe 20 - to the rod cavity 21 of the hydraulic working cylinder 9. Third line 22 of the hydraulic distributor 10 through
    The pipe 23 forming the internal hydraulic loop is connected to the fourth line 24 and is equipped with a check valve 25 that blocks the flow from the third line 22 in the direction of the fourth line 24. Average. the fixed position of the movable element of the three-position four-line valve 10 all four lines 16, 19, 24 and 22 are mutually open, in the first position of the movable element the first line 16 and the third line 22 are open, and the second line 19 and the fourth line 24 are open, in the second position of the movable element The first lines of the 16th quarter of the line 24 are mutually open, as well as the second line 19 and the third line 22.
    Internal hydraulic loop 23 is connected to external hydraulic
    loop 26, and the check valve 25 is installed; in both loops, a pressure relief valve 27 is installed in the outer hydraulic loop 26 between the third line 22 and the check valve 25. The third valve 22 of the hydraulic distributor 10 is connected via a check valve 25 to the hydraulic tank 28, connected to hydraulic loops 22 to 26 located between the safety valve 27 and the fourth line 24. The valve 10 is the easiest to bring using an electromagnet.
    3
    The valve 10 (FIG. 2) is provided with a half-hole 29, which is connected to the movable element of the hydraulic distributor 10 and on the end surface 30 of which the spring 31 rests. Finally, it is pressed against the end surface by means of a slider 32 installed in the guide 33 and resting on the output sensor 7 the folding angle of the control stick 13.
    The output of the folding angle sensor 7 is made in the form of a control rod. equalizing cam 13 installed in the guide 34 and through the tail 35 of the control cam 13 is connected to the angular position analysis unit 8, On the opposite side, the hydraulic distributor 10 is equipped with a half-mounted 36, which is connected to the movable element of the hydraulic distributor L and to the end surface 37 of which, supported by the spring 38, is connected with the slider 12 of the sensor 6 of the angle of rotation of the steered wheels mounted in the guide 39.
    The length of the spring 31 is chosen such that its spring travel is longer than the maximum movement of the slide. Similarly, the spring travel of the spring 38 is larger than the maximum movement of the slider 12 of the sensor 6 of the angle of rotation of the steered wheels. A portion of the internal hydraulic loop 23 located between the third line 22 and the check valve 25 is connected through a pipe 40 to a working hydraulic cylinder 41 of the friction brake 11, which actuates the brake shoes 42 by means of a piston and is located in the clamp 43. The brake shoes 42 are equipped with a brake 44. Brake clamp 43 is attached to the secondary section 2, brake rod 44- to the primary section 1. The construction element 44 used as the braking rod can be made as installed through the brake. 42 in the middle of any friction element, for example, the brake disc.
    The device works as follows.
    The angle of rotation of the controlled front wheels 5 is sensed by the sensor 6 of the angle of rotation of the controlled wheels, the folding angle by the sensor 7 of the angle of folding of the train sections. The outputs of both sensors are fed to
    10658
    The angular position analysis unit 8, in which the folding angle, ip, is in correspondence with each individual controlled steering angle. 5 The angular position analysis unit 8 compares both incoming signals about angles and determines whether and in which direction the actual folding angle deviates from the angle of folding in / 5 of the steering wheels 5 that the steering wheels 5 are in. The angular position analysis unit 8, in the event of a switch-off, depending on its location, gives two different signals to the hydraulic control unit 10, which, in conjunction with the working hydraulic cylinder 9, in the case of an incorrect direction of change
    20 of the folding angle creates a pressure pressure on the friction brake 11 adjacent to the working cylinder 41 of the hydraulic outlet of the hydraulic control unit 10, which,
    25 actuates the brake pads, creates a moment against the change of the folding angle.
    In the middle position of the moving element of the hydraulic distributor 10
    3Q, a direct hydraulic connection is provided between the first line 16 and the second line 19. The rod 15 can freely move in both directions and the turn hydraulic cylinder 9, since the connection between the piston 18 and rod 21 cavities is provided by pipes 17 and 20. In this position the hydraulic distributor 10, the device does not resist folding. If the movable element of the hydraulic distributor 10 moves in the direction of the slide 36, then in the control position a hydraulic connection occurs between the first line 16 and the third line 22, as well as between the second line 19 and the fourth line 24.
    If the rod 15 of the hydraulic working cylinder 9 moves to
    50 of the piston cavity 18, a pressure is created therein, which forces the fluid out of this cavity, and the pressure-. The liquid flow is higher, because the pressure created by the piston of the hydraulic cylinder of the cylinder 9, causes the liquid to flow from the third line 22 in the direction of the check valve 25, passing through the flow in this direction. So about 40
    45
    At the same time, the fluid flows through the hydraulic pipe AO into the working cylinder 41, the piston 45 of which compresses the brake pads 42 resting on the brake pipe 44 and receiving torque on it against changing the angle of folding. As soon as the actual folding angle / J coincides with the folding angle corresponding to the angle of rotation of the steerable wheels 0, the movable element of the hydraulic distributor 10 returns to the middle position, as a result of which the fluid pressure in the brake working cylinder 41 decreases.
    The maximum pressure arising in the hydraulic system and, therefore, in the brake working cylinder 41 is limited by a safety valve 27 connected in parallel to the check valve 25.
    If the rod 15 of the working cylinder 9 moves in the direction of extension (the first position of the movable element of the hydraulic distributor 10), then fluid is displaced from the rod cavity 21, which can exit through the fourth line 2 through the internal hydraulic loop 23 to the third line 22 since the check valve 25 opens in this direction. In the hydraulic circuit accordingly, only pressure that is prevented to open the check valve 25 is created and there is no significant frictional force in brake 11.
    The first deviated position of the movable element of the three-position four-line distributor 10 occurs when the secondary section 2 is in the overtaken, if you look at the articulated vehicle train from the top, in a clockwise direction, defined by the folding angle / 5p, corresponding to the angle of rotation wheel controls.
    The movable element of the three-position four-line hydraulic distributor 10 enters the second control position when the secondary section 2 is in a position turned counterclockwise when viewed from the top of the articulated train, at an angle of rotation of the steering wheel L. At the same time, the second line 19 is connected to the third line 22 and the first line 16 is connected to the fourth line 24. If the stem 15 of the working hydraulic cylinder 9 is in the extended position, then the liquid is expelled from the rod cavity 21 and, output through the third line 22, flows through the pipe 40 into the brake working cylinder 41. Moreover, the fluid pressure increases, as from the third line 22 in the direction of the fourth line 24, the check valve 25 closes the way. Due to the increased pressure of the liquid, the brake working cylinder 41 renders through the brake pads 42 press force, which means that a torsional moment appears against the change of the folding angle on the brake rod 44.
    If the working cylinder of the hydraulic cylinder 9 in the second control position of the three-position four-line valve 10 moves to the driving position, then fluid is displaced from the piston cavity 4, which, through the fourth line 24, can flow unhindered through the hydraulic loop 23 to the third line 22, so as the check valve opens in this direction. In the hydraulic loop, only the pressure required to open the check valve 25 is created, and there is no significant frictional force in the brake 11.
    1
    9 18 21
    权利要求:
    Claims (2)
    [1]
    1. DEVICE FOR INFLUENCE ON THE FOLDING ANGLE OF HINGED-ARRIVED TRAINS, having front steered wheels containing a friction brake with a hydraulic working cylinder and with two friction elements kinematically connected with the corresponding sections of the road train, the hydraulic cylinder is hydraulically connected to the hydraulic control unit, which the turn is connected to a working turning cylinder and a hydraulic tank, characterized in that, in order to increase the safety of work by providing more rect angle of jack-knifing, it is provided with a sensor steering angle, the folding angle sensor sections trains, and hydraulic control unit is arranged in the form of a three-position four-way directional control valve, a movable element which is kinematically connected through a gear elementyu the one hand, with the angle sensor po-. the gate of the steered wheels, and on the other hand, with the angle sensor of the folding sections of the road train, the first and second lines of the control valve are connected respectively to the piston and rod cavities of the working turning hydraulic cylinder, its third line is connected to the hydraulic; a friction brake, through a non-return valve with a hydraulic tank, and through a safety valve with a fourth valve line, and in the neutral position of the valve, all its lines are interconnected, in one of the extreme, the first line is connected to the third and the second to the fourth line, and in another, the first line is connected to the fourth, and the second to the third line, while the check valve is installed with the possibility of bypassing the working fluid in the direction from the hydraulic tank,
    [2]
    2. Device pop. 1, that the connection of the movable valve element with the angle sensor of the steered wheels is made in the form of two sliders, one of which is connected with the sensor, and the other with the movable valve element and located between them a spring, and the kinematic connection of the moving element of the hydraulic control valve with the angle sensor of the folding sections of the road train is made in the form of a control cam connected to the sensor, Two sliders, one of which is supported by a control cam, and the other is connected with a sliding valve element located between the sliders of the spring.
    > and „., 1210658
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1487807A3|1989-06-15|Arrangement for preventing excessive jack-knifing of articulated road train with front steering wheel
    US3998131A|1976-12-21|Rotary valve for power steering with hydraulic reaction
    SU1210658A3|1986-02-07|Device for acting on folding angle of articulated truck trains
    US4763916A|1988-08-16|Hydraulic jackknifing-affecting apparatus for articulated vehicles
    RU2000109588A|2002-03-10|VEHICLE WITH MOVABLE TILT ANGLE
    US3930436A|1976-01-06|Servo device particularly for steering gears
    US5479999A|1996-01-02|Powered, automatic, self-tracking system for the rear axles of trucks, trailers and buses
    HU194106B|1988-01-28|Hydrodynamic controlling device for steering the wheels of motor vehicles equipped with hydrodynamic boosting device and automatic stabilizer of straight movement
    CA1231114A|1988-01-05|Anti-buckling control system for articulated vehicles
    US5893428A|1999-04-13|Hydraulic power steering
    HU188668B|1986-05-28|Swing angle influencing device with friction brake for jointed motor vehicle
    EP0577571A2|1994-01-05|A reverse steering group for a self-steering axle in trucks, articulated trucks and the like
    CS268504B2|1990-03-14|Crab angle regulating device
    US4144947A|1979-03-20|Power steering systems
    JPH0637183B2|1994-05-18|Rear wheel steering system for automobiles
    WO1995017328A1|1995-06-29|Arrangement for influencing the joint angle between sections of an articulated vehicle
    EP0047241A1|1982-03-17|Hydraulic servo steering system.
    US4065148A|1977-12-27|Anti-jack-knifing apparatus
    GB2158022A|1985-11-06|Automatic or manual power assisted steering
    EP0553203B1|1995-08-23|Fourwheel steering for motor vehicle
    EP0672574B1|2001-05-09|Power steering system
    US4301882A|1981-11-24|Power-assisted steering system
    GB2026964A|1980-02-13|Steering valve arrangement for a vehicle
    JPH0624948B2|1994-04-06|Hydraulic power steering system for vehicles
    GB1141117A|1969-01-29|Hydraulic follow-up for vehicle steering systems
    同族专利:
    公开号 | 公开日
    US4455035A|1984-06-19|
    DE3204728A1|1982-10-07|
    HU183341B|1984-04-28|
    DD202121A5|1983-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2446959C2|2006-12-12|2012-04-10|СКАНИА СВ АБ |Method of articulation control|
    RU177344U1|2017-07-24|2018-02-16|Публичное акционерное общество "КАМАЗ"|TRAFFIC LOCKING SYSTEM|GB1532535A|1975-06-30|1978-11-15|Autoipari Kutato Intezet|Articulated vehicles|
    HU182445B|1979-08-21|1984-01-30|Autoipari Kutato Intezet|Device for articulated motro vehicle for hindering the turning in irregular direction|GR79630B|1982-08-18|1984-10-31|Falkenried Fahrzeug Gmbh|
    HU191474B|1982-08-26|1987-02-27|Autoipari Kutato Es Fejlesztoe Vallalat,Hu|Device for preventing the swinging of irregular direction of articulated motor vehicle|
    HU203058B|1984-02-24|1991-05-28|Autoipari Kutato Fejlesztoe|Hydraulic articulation-angle influencing apparatus for articulated vehicle|
    US5244226A|1991-09-23|1993-09-14|Bergh C John|Trailer and steerable wheels therefor|
    US5224727A|1992-07-24|1993-07-06|Chester Ramskugler|Anti-jackknifing mechanism|
    RU2604376C1|2015-07-16|2016-12-10|Федеральное государственное бюджетное образовательное учреждение высшего образования "Новгородский государственный университет имени Ярослава Мудрого" |Long-wheelbase tractor-trailer train control system|
    DE102015119085B4|2015-11-06|2021-03-25|Robert Bosch Gmbh|Method for controlling an articulation angle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU81426A|HU183341B|1981-02-21|1981-02-21|Swing angle influencing device with friction brake for jointed motor vehicle|
    [返回顶部]