Autoipari Kutato Intezet

Ikarus Karosszeria Es Jarmugyar

Taurus Gumiipari Vallalat

Other

Autoipari Kutato Es Fejleszto Vallalat

Ikarus Karosszeria Es Jarmu

Autoipari Kutato E,acu/e/ S Fejleszto Allalat

Jeno Madi

Jozsef Ivony

Istvan Ratsko

Bela Horvath

Gyorgy Karaszi

Gyorgy Karaszy

Attila Madocsay

Sandor Szabo

Gyula Subotics

Laszlo Palotas

Gusztav Gundisch

Otto Farkas

Nandor Liptai

Ilona Tatay

Gyorgy Karasz

Jozsef Korosladanyi

Laszlo Vad

The disclosure relates to a jackknifing controlling system, for reducing undesirable jackknifing in an articulated vehicle, particularly with a rear drive. Sensing means is provided for measuring the angle of steering as well as the angle of articulation. At all times, the actual angle of articulation is compared to an ideal angle of articulation for the particular angle of steering, the ideal angle having been preprogrammed into a memory device. Whenever the actual angle of articulation deviates from the preprogrammed ideal angle by a predetermined amount, control actions are initiated to control the articulation. Further articulation in the direction of deviation is immediately blocked. Articulation in the opposite direction, toward the ideal, is freely allowed if the deviation exceeds a predetermined amount. If it is less than the predetermined amount, articulation, even toward the ideal angle is, damped by throttling of hydraulic flows. The range of deviation over which return articulation is damped follows a set of curves, embracing the curve of ideal articulation in an asymmetrical manner providing for optimum control over undesirable swinging.

Hydraulic jackknifing-affecting apparatus for articulated vehicles

An apparatus for an articulated vehicle for preventing jackknifing. A sensor for sensing the steered angle has a movable first element coupled to the steered wheel and a stationary second element, one of the first and second elements being divided into sections starting from the position of the steering to the left, with a discrete signal for each single section referring to its relative position and having a value differing from that of the other sections and a digital output signal characteristic of the serial number of each section. A sensor for sensing the angle of articulation has a displaceable third element connected to one of the vehicle parts, and a stationary fourth element, wherein one of the third and fourth elements is divided into sections starting from the position of the fully left articulation with a digital output signal for each section representative of the serial number and a discrete signal representing the relative position thereof and which has a value which is different from that of the other sections. An angular position evaluating unit is receptive of the output signals from the two sensors for comparing same and for indicating a positive differential sign if the serial number of the steering angle section is less than the serial number of the section of the angle of articulation and the difference between the serial numbers is greater than a predetermined value and a negative differential sign if the serial number of the section of the steering angle is larger than the serial number of the section of the angle of articulation and the difference between the serial numbers is greater than a predetermined value.

Jacknifing-affecting apparatus for vehicles with electronic control

The invention relates to an elastic self-carrying bellows-body, in particular for vehicles, having been formed with ribs separated by spacings and interconnected with connecting means. The essence of the invention lies in that the thickness of the connecting means interconnecting the ribs is less on at least two opposite sides of the bellows-body, than that of the ribs and the ribs and connecting means are formed as monolithic units.

Elastic self carrying bellows

The invention relates to an anti-jackknifing device for an articulated motor vehicle, mainly for an articulated bus, where the torque influencing the jackknifing angle is brought about by a friction brake mechanism around the articulated coupling. The anti-jackknifing device has sensor elements sensing the run-dynamic characteristics connected to a control unit that controls the brake actuating unit of the brake mechanism. One of the elements of the friction brake mechanism braked in relation to each other is connected to one of the two or three vehicle units coupled to each other--i.e. front vehicle, trailer and intermediate vehicle unit--while the other element is connected to at least one of the further two vehicle units. One of the friction elements of the friction brake mechanism according to the invention is formed as brake rod connected to one of the vehicle units, the other friction element i.e. the brake lining is arranged in the brake bracket surrounding the brake rod and it is connected to the other vehicle unit. In a suitable construction of the invention the cross bridge of the intermediate vehicle unit--rotatable base--arranged between the front vehicle and trailer of the jackknifing bus coupled with articulation to each other is formed by the brake rod, the brake bracket bisecting the jackknifing angle between the front vehicle and trailer is connected to the former one with a rod system.

Anti-jackknifing device with friction brake for articulated motor vehicle

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.

A jackknifing limiting device for articulated motor vehicles in which the vehicle has a front section and a rear section which are connected by a hinge therebetween, the device acting to limit the angle between the front and rear sections when the vehicle is turning, the device comprising a pair of hydraulic cylinders flanking the hinge and connected between the front and rear sections and a reservoir containing hydraulic fluid for the cylinders. Respective pressure regulating valves are connected between the reservoir and the cylinders and open unidirectionally toward the reservoir, with respective solenoid stop valves connected between the regulating valves and the reservoir, the stop valves being normally open. Respective check valves are provided in respective bypass lines connected between the reservoir and the cylinders, the check valves opening unidirectionally toward the cylinders. Respective switches are connected to the solenoid valves and are selectively operable upon the turning of the vehicle in a particular direction, the switches acting to selectively energize and close the respective solenoid valve associated with the cylinder on the side of the hinge opposite from the direction of turning, the closing of the respective solenoid valve acting to prevent the opening of the respective regulating valve associated therewith.

Jackknifing-angle limiting device for articulated motor vehicle

Equipment influencing the jacknifing angle of an articulated motor vehicle, when the vehicle units are in articulated coupling with each other, has a hydraulic piston device with two working spaces arranged outside the longitudinal centerline of the motor vehicle, the piston of which is connected to one unit, while its cylinder is connected to the other vehicle unit. Each working space is connected through a hydraulic valve unit to the hydraulic space of the hydropneumatic energy source, the valve unit has a parallel connected check valve and choke valve closing from the direction of the working space toward the hydropneumatic energy source. An adjustable transfer cross sectional closing element of the choke valve is in functional connection with the sensor element sensing the steering angle and direction of the front axle and the actuating signal of the sensor element is concomitant with the position of one of the choke valves bringing about increased choking.

Equipment for influencing the jacknifing angle of articulated motor

An antijackknifing apparatus for an articulated vehicle has an angle evaluating unit and an articulation locking mechanism including a locking activator unit. A control signal is produced corresponding to the sign of the deviation of the angle of articulation, the sign being positive when disposed to the right when viewed from above in the direction of movement and being negative when disposed to the left. The locking actuator unit also receives a direction signal which is positive when the change in the angle of articulation of the vehicle when view from above is clockwise and negative when counterclockwise. The locking activator unit goes into a locked condition when two opposite sign input signals are applied thereto.

Apparatus for the prevention of jackknifing of articulated vehicles

A spring leg with load proportional limited damping for use on a vehicle, includes a telescoping shock absorber including a piston and cylinder and a load bearing air suspension connected to a gas pressure system and having the walls surrounding the air space thereof comprising an elastic jacket and two rigid walls fixed to the body and the axle gear of the vehicle wherein the binding units of the shock absorber are partly arranged in the air space of the air suspension. An auxiliary diaphragm has an inner rim fixed to the cylinder of the shock absorber and an outer rim fixed to one of the two rigid walls of the air suspension to define the auxiliary diaphragm as one of the bordering walls, of the air space of the air suspension. A pilot ring limits the outward movement of the cylinder of the telescopic hydraulic shock absorber from the air space of the air suspension and is fixed to the rigid wall bearing the outer rim of the auxiliary diaphragm. A bearing ring is arranged on the cylinder of the shock absorber with the piston rod of the shock absorber and is fixed to the other rigid wall of the air suspension.

Growing community of inventors

Budapest, Hungary

Jeno Madi