EP4041667A1 - Engin de manutention de charge équipé d'un moteur thermique et procédé de commande de la vitesse en rotation du moteur thermique d'un tel engin - Google Patents
Engin de manutention de charge équipé d'un moteur thermique et procédé de commande de la vitesse en rotation du moteur thermique d'un tel enginInfo
- Publication number
- EP4041667A1 EP4041667A1 EP20785798.8A EP20785798A EP4041667A1 EP 4041667 A1 EP4041667 A1 EP 4041667A1 EP 20785798 A EP20785798 A EP 20785798A EP 4041667 A1 EP4041667 A1 EP 4041667A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- flow rate
- control
- data
- hydraulic pump
- 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
- 238000000034 method Methods 0.000 title claims description 24
- 230000006870 function Effects 0.000 claims description 27
- 230000007935 neutral effect Effects 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 15
- 102100035673 Centrosomal protein of 290 kDa Human genes 0.000 claims description 14
- 101000715664 Homo sapiens Centrosomal protein of 290 kDa Proteins 0.000 claims description 14
- 101100520660 Drosophila melanogaster Poc1 gene Proteins 0.000 claims description 13
- 101100520663 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADD66 gene Proteins 0.000 claims description 13
- 101100520662 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PBA1 gene Proteins 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 101100279566 Arabidopsis thaliana EMB514 gene Proteins 0.000 claims description 8
- 101100268514 Mus musculus Serpina1a gene Proteins 0.000 claims description 8
- ZACLXWTWERGCLX-MDUHGFIHSA-N dom-1 Chemical compound O([C@@H]1C=C(C([C@@H](O)[C@@]11CO)=O)C)[C@@H]2[C@H](O)C[C@@]1(C)C2=C ZACLXWTWERGCLX-MDUHGFIHSA-N 0.000 claims description 8
- 101100268515 Mus musculus Serpina1b gene Proteins 0.000 claims description 6
- 101100268516 Mus musculus Serpina1c gene Proteins 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 description 32
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
- B66F9/0655—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted with a telescopic boom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/0759—Details of operating station, e.g. seats, levers, operator platforms, cabin suspension
Definitions
- the present invention relates to a load handling device equipped with a heat engine and a method of controlling the rotational speed of the heat engine of such a load handling device.
- the pedal position sensor a sensor of a parameter representative of the position of the accelerator pedal called the pedal position sensor
- a handling system comprising at least one handling member, such as a lifting arm, a hydraulic pump driven in rotation by the heat engine, at least one hydraulic actuator of the handling member (s), and for the or each actuator , a fluid circuit connecting the actuator to the pump,
- control system for the actuator such as a control lever or joystick, which can be operated manually by the operator of the machine and
- control unit configured to acquire data supplied by the control system and data supplied by the pedal position sensor and to control each actuator as a function of at least the data supplied by the control system.
- Such a load handling device is known as illustrated, for example, in patent application US 9505395.
- the driver of such a device often wants the speed of execution of the movements of the handling system to be the same. faster possible. It is known in the state of the art to increase the speed of execution of the movements of the handling system. by pressing the accelerator pedal.
- this solution has the undesirable effect, when the transmission is engaged, of increasing the forward speed of the carriage. This action also leads to an increase in fuel consumption and an inability to optimize the rotational speed of the heat engine.
- An object of the invention is to provide a handling machine of the aforementioned type, the design of which makes it possible to increase the speed of handling movements without compromising the comfort of use of the machine.
- the invention relates to a load handling machine comprising:
- the pedal position sensor a sensor of a parameter representative of the position of the accelerator pedal called the pedal position sensor
- a handling system comprising at least one handling member, such as a lifting arm, a hydraulic pump driven in rotation by the heat engine, at least one hydraulic actuator of the handling member (s), and for the or each actuator, a fluid circuit connecting the actuator to the hydraulic pump,
- the determination of the heat engine rotation speed setpoint as a function of the position acquired from the accelerator pedal and of the hydraulic pump flow setpoint resulting from the actuation of the control system makes it possible to take into account for the determining the speed of rotation of the heat engine both from the actions performed by the driver of the machine on the accelerator pedal and on the machine's control system. This results in increased ease of use of the machine without compromising the precision of the control of the handling movement.
- the permanent parallel taking into account of the position of the accelerator pedal and of the actuation of the control system for determining the speed of rotation of the heat engine makes it possible to avoid the creation of an overly sensitive control system. , which would interfere with the control of the handling system.
- the control unit comprises a memory for storing heat engine rotational speed data associated with flow data of the hydraulic pump and position data of the heat engine. accelerator pedal.
- a pair of flow rate values of the hydraulic pump / position of the accelerator pedal corresponds to a value of the engine speed of rotation.
- the flow rate of the hydraulic pump / position of the accelerator pedal / engine speed of rotation are organized as a triplet.
- the control unit is configured to determine the heat engine rotational speed setpoint as being the stored heat engine rotational speed value associated with the stored flow rate and position data corresponding respectively to one, to the value of the flow setpoint of the hydraulic pump, the other, to the value of the position acquired from the accelerator pedal, that is to say to the position datum supplied by the pedal position sensor.
- the thermal engine rotation speed setpoint is thus chosen to be perfectly suited to the actions of the operator of the machine.
- the control system comprises, for each actuator that can be requested by said control system control, at least one manually operable control member movably mounted between a neutral position and at least one end-of-travel position, and at least one associated position sensor, at least part of the data supplied by the control system to the control unit being formed by data supplied by the or each position sensor associated with a control member.
- the control member can conventionally be a control lever or joystick, this joystick being able to carry one or more control members.
- control unit comprises a memory for storing the maximum flow rate of the hydraulic pump, and, for each actuator controlled in operation by the control system, the control unit command is configured for:
- the sum of the desired flow values for each actuator controlled during actuation of the control system by the driver of the machine makes it possible to precisely determine the flow rate of the hydraulic pump necessary for the proper functioning of the actuators, c ' that is to say at the maximum speed, for carrying out the command, this determination being made within the limit of the maximum flow rate authorized by the characteristics of the hydraulic pump.
- the sum of the desired flow values for each actuator controlled during an actuation of the control system makes it possible to optimally process a movement command involving several actuators for the execution of said command.
- control unit control for each actuator controlled in operation by the control system, is configured to determine the desired flow value of said actuator to execute the control at least as a function of the data supplied by the at least one position sensor associated with the control member of said actuator.
- each fluid circuit for connecting an actuator to the hydraulic pump is provided with at least one closure member movably mounted between an open position and a closed position of said associated circuit and the control unit includes a memory for storing the maximum flow rate of each shutter member and is configured to determine the desired flow rate value of each actuator to execute the command at least based on the data provided by the at least one position sensor associated with the control member of said actuator and maximum flow data of the shutter member of the circuit stored and to control the displacement of the shutter member at least as a function of the desired flow value determined.
- a further subject of the invention is a method for controlling the rotational speed of the heat engine of a load handling machine comprising, in addition to the heat engine:
- the pedal position sensor a sensor of a parameter representative of the position of the accelerator pedal called the pedal position sensor
- a handling system comprising at least one handling member such as a lifting arm, a hydraulic pump driven in rotation by the heat engine, at least one hydraulic actuator of the handling member (s), and for the or each actuator, a fluid circuit connecting the actuator to the hydraulic pump,
- control unit configured to acquire data supplied by the control system and so-called position data supplied by the pedal position sensor and to control each actuator as a function of at least the data supplied by the control system, characterized in that said method comprises the steps:
- the rotational speed of the heat engine is thus a function of both the action of the driver of the vehicle on the control system and on the accelerator pedal, these actions being considered cumulatively and not in a cumulative manner. selective.
- the control unit comprising a memory for storing data on the rotational speed of the heat engine associated with flow data of the hydraulic pump and data position of the accelerator pedal
- said method comprises a step of determining by the control unit the rotational speed setpoint of the heat engine as being the stored speed value associated with the flow rate and stored position data corresponding respectively one, to the value of the flow rate setpoint of the hydraulic pump, the other, to the position data supplied by the pedal position sensor.
- control unit comprising a memory for storing the maximum flow rate of the hydraulic pump, said method comprises:
- the value of the hydraulic flow rate of the pump is chosen taking into account the desired flow value for each actuator controlled by the control system within the limit of the maximum flow value of the hydraulic pump.
- the control system comprising, for each actuator that can be controlled by said control system, at least one manually actuable control member mounted to move between a neutral position and at least one end-of-travel position and at least one associated position sensor, said method comprises a step of determining by the control unit the desired flow rate value of the or each actuator in order to execute the control at least as a function of the data supplied by the at least one position sensor associated with the control member of said actuator.
- each fluid circuit for connecting an actuator to the hydraulic pump being provided with at least one closure member movably mounted between an open position and a position closed of said associated circuit and the control unit comprising a memory for storing the maximum flow rate of each closure member, said method comprises:
- the desired flow rate value for an actuator is therefore a function of both the actuation of the control system to control said actuator, in particular of the travel stroke of the actuator control member related to the maximum authorized displacement travel of said actuator control member and the maximum authorized flow rate on the circuit for connecting this actuator to the hydraulic pump.
- FIG. 1 is a schematic side view of a load handling machine according to the invention.
- FIG. 2 shows a detailed schematic view of the control system that can be actuated by the driver of the machine
- FIG. 3 is a functional partial schematic representation of the control unit in its environment
- FIG. 4 is a functional schematic representation of part of the control unit.
- the concept of the invention is described more fully below with reference to the accompanying drawings, in which embodiments of the concept of the invention are shown.
- Reference throughout the specification to "one embodiment” means that a particular feature, structure, or feature described in connection with one embodiment is included in at least one embodiment of the present invention.
- the appearance of the phrase “in one embodiment” at various locations throughout the description does not necessarily refer to the same embodiment.
- the features, structures, or particular features may be combined in any suitable manner in one or more embodiments.
- the invention relates to a load handling machine 1 which may be in accordance with that shown in Figure 1.
- This machine 1 comprises a frame.
- this frame is equipped with support wheels on the ground to form a rolling frame.
- This chassis is surmounted by a driving position.
- the driving position takes the form of a cockpit inside which is arranged at least one seat on which the operator of the machine can sit.
- Machine 1 still includes an engine
- This drive system 5 for moving the machine is engaged with the heat engine 2.
- this system 5 for driving the vehicle in motion comprises a hydrostatic pump 51 driven in operation by the heat engine 2.
- This hydrostatic pump 51 is coupled to at least one hydrostatic motor 52 for driving the wheels of the machine in rotation.
- a speed sensor 53 can be arranged between the hydrostatic motor 52 and the wheels to provide the actual speed of movement of the machine.
- a speed sensor can sense the actual speed of rotation of the heat engine 2. This information can be supplied to a control unit 8 which will be described below.
- the drive system 5 for moving the machine is controlled in particular by means of an accelerator pedal 3 placed in the cockpit. This pedal
- the machine comprises a control unit 8 to which the data from the pedal position sensor 4 is supplied.
- This control unit 8 is therefore configured to acquire the position data supplied by the pedal position sensor 4, these position data being represented in PAP in the figures.
- the control unit 8 transmits control signals for the heat engine 2, and in particular the speed of rotation of the heat engine 2, as a function at least of these position data PAP.
- the machine 1 further comprises a handling system 6 comprising at least, for load handling, at least one handling member 61, a hydraulic pump 62 driven in rotation by the heat engine 2, at least one hydraulic actuator of the handling member (s), and for the or each actuator, a fluid circuit for connecting the actuator to the hydraulic pump 62.
- the handling member 61 is a lifting arm carried by the frame of the machine 1. Equivalently, the handling member could have been formed from a mast or the like. Likewise, the term "office” must be understood in its broadest sense and includes in particular persons.
- This arm is a pivoting arm mounted to pivot about a so-called horizontal axis, orthogonal to the longitudinal axis of the arm, and parallel to the bearing plane on the ground of the machine 1, in the positioned state of the machine on a horizontal surface, for the passage of the arm from a low position to a high position and vice versa, using an actuator, such as a jack, shown at 631 in the figures and placed between the arm and the rolling frame.
- an actuator such as a jack, shown at 631 in the figures and placed between the arm and the rolling frame.
- a single double-acting cylinder supplied with fluid by the hydraulic pump 62.
- a pair of parallel single-acting jacks supplied in turn with fluid could have been used in an equivalent manner.
- This arm is a telescopic arm formed, in the example shown, of two arm sections mounted in sliding interlocking, and driven in relative movement by an actuator, for the passage of the arm from a position retracted to an extended position and vice versa.
- This actuator is shown at 633 in the figures.
- This telescope output actuator 633 is formed by a hydraulic cylinder, the body of which is mounted integral with one arm section and the rod with the other arm section.
- the arm is equipped at its free end with an accessory, such as a bucket holder or a fork holder.
- This accessory is mounted via an actuator, shown at 632 in the figures, movable to pivot about a so-called horizontal axis, orthogonal to the longitudinal axis of the arm between a digging position and a dumping position.
- the dumping position corresponds to the extreme pivoting position towards the ground of the attachment, while the crowding position corresponds to an upward pivoting position of the attachment.
- This actuator 632 is arranged between the accessory and the arm and can again consist of a double-acting hydraulic cylinder or a pair of single-acting cylinders.
- the pivotal displacement drive of the attachment takes place around an axis parallel to the pivot axis of the arm.
- Each actuator 631, 632, 633 is for its fluid supply connected to the hydraulic pump 62 by a connecting fluid circuit.
- Each fluidic connection circuit is in the examples shown equipped with a distributor and a closure member, such as a valve. This closure member is mounted to move between an open position and a closed position of the associated fluid circuit.
- the actuator 631 for driving the pivoting movement of the handling member 61 is connected to the hydraulic pump 62 by the fluidic connection circuit 641 equipped with the shutter member 651
- the actuator 632 of drive in pivoting movement of the accessory is connected to the hydraulic pump 62 by the fluidic connection circuit 642 equipped with the shutter member 652
- the actuator 633 for controlling the telescope of the handling member 61 is connected to the hydraulic pump 62 via the fluidic connection circuit 643 equipped with the closure member 653.
- the control unit 8 comprises a memory 11 for storing the maximum flow rate of each shutter member 651, 652, 653, this maximum flow rate corresponding to the extreme open position of the shutter member.
- the maximum flow rate represented in DOM1 in the figures corresponds to the maximum flow rate of the shutter member 651
- the maximum flow rate shown in DOM2 in the figures corresponds to the maximum flow rate of the shutter member 652
- the maximum flow rate shown in DOM3 in the figures corresponds to the maximum flow rate of the closure member 653.
- the machine control unit 8 is configured to control the operation of the actuators 631, 632 and 633, which makes it possible to control the movement of the handling member 61, that is to say of the arm and accessory.
- This control unit 8 is an electronic and / or computer unit which comprises, for example, a microcontroller or a microprocessor associated with a memory.
- This memory includes computer instructions which when executed by the microcontroller or the microprocessor associated with the memory allow the microcontroller or microprocessor to perform the operations or steps described below.
- the unit or means of said unit are configured to perform a given operation, this means that the unit comprises computer instructions and the corresponding execution means which make it possible to perform said operation and / or corresponding electronic components.
- the functions and steps described can be implemented in the form of a computer program or via hardware components (eg networks of programmable doors).
- the functions and steps operated by the control unit 5 can be performed by instruction sets or computer modules implemented in a processor or controller or be performed by dedicated electronic components or FPGA or ASIC type components. It is also possible to combine computer parts and electronic parts.
- the control unit 8 therefore controls the handling system 6 and, in particular, the movements of the arm and of the accessory of the member 61 of handling by controlling the corresponding actuators via the hydraulic circuits as described above.
- control signals supplied by the control unit 8 act on the organs, such as distributor or closure member (valve), arranged on the connection between the hydraulic pump 62 and the actuators to allow a supply of fluid appropriate actuators in a manner known per se.
- organs such as distributor or closure member (valve) arranged on the connection between the hydraulic pump 62 and the actuators to allow a supply of fluid appropriate actuators in a manner known per se.
- the handling machine 1 further comprises a system 7 for controlling the load handling system 6 and in particular the actuators 631, 632, 633 of the load handling system 6.
- This control system 7 is manually operated and enables data to be supplied to the control unit 8.
- control unit 8 generates, from this data, signals for controlling at least the load handling system 6 as described above.
- the control system 7 which provides data POC1, POC2, POC3 to the control unit 8 to control the handling system 6, in particular the actuators 631, 632, 633 of the handling system 6 can affect a great deal. number of shapes.
- the control system 7 comprises, for each actuator 631, 632,
- At least part of the data POC1, POC2, POC3 supplied by the control system 7 to the control unit 8 are position data formed by data supplied by the or each position sensor associated with a control member.
- one of the control members shown at 71 is a control lever also called a joystick.
- This control member 71 allows actuation of the actuator 631 for driving the pivoting movement of the arm of the handling member 61 and / or the actuator 632 for driving the pivoting movement of the accessory. the handling member 61 as a function of the type of movement of the control member 71.
- This control member 71 is equipped at its base with two position sensors 73, 74, also called encoders, to allow the transmission of two position data POC1 and POC2 from the control member 71 to the unit 8 control.
- An example of such a control member is for example described in patent FR 2858861.
- This control member 71 can thus be moved forward, backward, to the left, or to the right of the vehicle. .
- the movements, towards the front and the rear of the machine, of this control member 71 captured by the position sensor 73 control the upward and downward movement of the arm of the handling member 61, while the movements, to the left and to the right of the machine, of the control member 71 picked up by the position sensor 74 control the pivoting movement of the accessory.
- the position information sent to the control unit is therefore generally information relating to the angular position of the control member 71, relative to the position it occupies in the neutral position.
- control member 71 In this neutral position, when the control member 71 is moved angularly to the right within a predetermined angular sector, it controls the pivotal movement of the accessory in the direction of a discharge. When the control member 71 is, from the neutral position, displaced angularly towards the left within a predetermined angular sector, it controls the pivotal displacement of the accessory in the direction of a digging. Likewise, when the control unit 71 is, from the neutral position, displaced angularly forwards within a predetermined angular sector, it controls the rise of the arm, while when the control member 71 is, from the neutral position, displaced angularly towards the rear inside a predetermined angular sector, it controls the descent of the arm. Obviously, the right / left, front / rear positions can be reversed without departing from the scope of the invention.
- angular sectors may overlap to allow, by the actuation of the control member 71, in parallel with a pivoting of the accessory, an upward and downward movement of the arm.
- the control system 7 comprises a second control member shown at 72 in the figures.
- This second control member 72 is associated with a position sensor shown at 75 in the figures to allow the transmission of position data POC3 to the control unit 8.
- This control member 72 allows the actuator 633 to exit the telescope from the arm part of the handling member 61.
- the control member 72 is here formed by a thumbwheel positioned on the control member 71.
- the actuation of this wheel makes it possible to drive the arm of the handling member 61 in movement between a retracted position and an extended position.
- the rotation of the wheel in one direction from a neutral position of said wheel allows the arm to exit by sliding movement, in the direction of an extension of the arm, of the second section of the arm, and the rotation of the thumbwheel in an opposite direction from the neutral position allows the arm to retract.
- This control member 72 is returned to the neutral position by a spring.
- control members The number of control members described above is equal to two.
- control members can be any without departing from the scope of the invention, and in particular greater than two or less than two.
- one or more position sensors can be associated with the same control member without departing from the scope of the invention.
- the control unit 8 is configured to acquire the data POC1, POC2, POC3 of the control system 7 corresponding at least to the position data of the position sensors of the control members 71, 72. control system 7.
- the control unit 8 is configured to determine, as a function of at least the data POC1, POC2, POC3 supplied by the control system 7, a flow rate setpoint CDP for the hydraulic pump.
- control unit 8 comprises a memory 10 for storing the maximum DMP flow rate of the hydraulic pump 62.
- This maximum flow rate DMP is a known predetermined value depending in particular on the displacement and the power of the hydraulic pump 62.
- the control unit 8 For each actuator 631 or 632 or 633 controlled in operation by the control system 7 for the execution of a command, the control unit 8 is configured to determine a desired flow value of said actuator to execute said command at least as a function of the data supplied by the at least one position sensor 73 or 74 or 75 associated with the control member 71 or 72 of said actuator 631, 632, 633.
- a data POC1 of position is sent to the control unit 8.
- a position data POC2 is addressed to the control unit 8.
- a position data POC3 is sent to the 8 control unit.
- the position datum POC1 of the position sensor 73 associated with the datum DOM1 of maximum flow rate of the member 651 for closing off the connection circuit of the actuator 631 controlled in operation by the control member 71 associated with the position sensor 73 makes it possible to determine the desired flow rate VDS1 value of said actuator 631.
- the maximum movement stroke of the control member 71 between its neutral position and one of its positions extremes is 100 mm and if the position sensor 73 detects a displacement of 50 mm or 50% of the total stroke, the desired flow rate VDS1 value of the actuator 631 is equal to actual stroke / total stroke x DOM1.
- the value of VDS1 for the desired flow rate of the actuator 631 is equal to 0.0015 m 3 / s, i.e. 0.5x0.003.
- the position datum POC2 of the position sensor 74 associated with the datum DOM2 of maximum flow rate of the member 652 for shutting off the connection circuit of the actuator 632 controlled in operation by the member 71 control associated with the position sensor 74 makes it possible to determine the desired flow rate VDS2 value of said actuator 632.
- the position datum POC3 of the position sensor 75 associated with the datum DOM3 of maximum flow rate of the member 653 for shutting off the connection circuit of the actuator 633 controlled in operation for the control member 72 associated with the position sensor 75 makes it possible to determine the desired flow rate VDS3 value of said actuator 633.
- the calculation is each time similar to that used for VDS1.
- the desired flow rate value of the associated actuator is zero.
- the desired flow rate value of said actuator determined by the control unit 8 is compared with the maximum DMP flow value of the hydraulic pump 62 stored. If this desired actuator flow value is less than the maximum DMP flow value of the hydraulic pump 62 then the hydraulic pump flow rate CDP setpoint is chosen equal to the actuator desired flow value.
- the hydraulic pump flow rate CDP setpoint value is chosen equal to the value Maximum DMP of pump 62.
- the set value CDP of the flow rate of the hydraulic pump 62 is therefore chosen each time as corresponds to the smallest value (MIN) of the comparison.
- the desired flow values of the actuators controlled are added before being compared with the maximum DMP flow of the hydraulic pump 62.
- the flow rate setpoint CDP of the hydraulic pump 62 is similarly to what is described above chosen as corresponding to the smallest value of the comparison.
- the actuators 631 and 632 are controlled in operation by actuation of the handling member 61 and detection by the position sensors 73 and 74 then the values VDS1 and VDS2 are added together and the result of the sum is compared with the maximum DMP flow value of the hydraulic pump 62.
- the control unit 8 further comprises a memory 9 for storing data of speed Vm of rotation of the thermal engine 2 associated with flow data DPm of the hydraulic pump 62 and position data PPm of the pedal 3 accelerator.
- a torque value of flow DPm of the pump and position PPm of the accelerator pedal 3 corresponds a value Vm of the speed of rotation of the pump as illustrated in FIG. 4.
- the stored DMP flow rate value is chosen as that of the flow rate CDP of the hydraulic pump 2 as determined above, and if the position value PPm of the accelerator pedal corresponds to the data Position PAP supplied by the pedal position sensor 4, a stored speed value Vm is obtained for this torque, chosen as being that retained as the value of the setpoint CVM for the speed of rotation of the thermal engine 2.
- the control unit 8 is therefore configured to determine the setpoint CVM of the rotational speed of the thermal engine 2 as being the stored speed value Vm associated with the stored flow rate DPm and position PPm data corresponding respectively to one, to the value of the CDP setpoint flow rate of the hydraulic pump 62, the other to the position data PAP supplied by the pedal position sensor 4.
- control unit 8 is therefore configured to determine, as a function of the flow rate CDP setpoint of the hydraulic pump 62 and of the position PAP data supplied by the pedal position sensor 4, the setpoint CVM of the rotational speed of the heat engine and to control the drive in rotation of the heat engine 2 to said CVM setpoint of determined rotation speed.
- This speed of rotation of the thermal engine 2 chosen according to the actions of the driver of the machine on the accelerator pedal and on the control system 7 of the actuators of the handling system allows driving comfort combined with precision control of the actuation of the handling system and this permanently.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid-Pressure Circuits (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1911236A FR3101867B1 (fr) | 2019-10-10 | 2019-10-10 | Engin de manutention de charge équipé d'un moteur thermique et procédé de commande de la vitesse en rotation du moteur thermique d'un tel engin |
PCT/FR2020/051560 WO2021069809A1 (fr) | 2019-10-10 | 2020-09-10 | Engin de manutention de charge équipé d'un moteur thermique et procédé de commande de la vitesse en rotation du moteur thermique d'un tel engin |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4041667A1 true EP4041667A1 (fr) | 2022-08-17 |
EP4041667B1 EP4041667B1 (fr) | 2023-11-01 |
Family
ID=69468739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20785798.8A Active EP4041667B1 (fr) | 2019-10-10 | 2020-09-10 | Engin de manutention de charge équipé d'un moteur thermique et procédé de commande de la vitesse en rotation du moteur thermique d'un tel engin |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220388824A1 (fr) |
EP (1) | EP4041667B1 (fr) |
JP (1) | JP7556026B2 (fr) |
AU (1) | AU2020361566A1 (fr) |
CA (1) | CA3153508A1 (fr) |
FR (1) | FR3101867B1 (fr) |
WO (1) | WO2021069809A1 (fr) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4062085B2 (ja) * | 2002-12-18 | 2008-03-19 | 株式会社豊田自動織機 | 電気式産業車両の操舵装置 |
FR2858861B1 (fr) | 2003-08-11 | 2007-06-22 | Manitou Bf | Dispositif de commande par interaction avec la main d'un operateur |
JP2005098215A (ja) | 2003-09-25 | 2005-04-14 | Toyota Industries Corp | 荷役車両におけるエンジン回転数制御方法 |
JP4727653B2 (ja) * | 2005-02-25 | 2011-07-20 | 三菱重工業株式会社 | バッテリ式産業車両の荷役回生方法及び荷役回生システム |
JP2007127174A (ja) * | 2005-11-02 | 2007-05-24 | Hitachi Constr Mach Co Ltd | 作業車両の走行制御装置および走行制御方法 |
WO2008056526A1 (fr) * | 2006-11-09 | 2008-05-15 | Furukawa Unic Corporation | Dispositif de commande de quantité d'alimentation en huile sous pression pour grue montée sur un véhicule |
CN102365227B (zh) | 2009-03-27 | 2014-07-30 | 株式会社小松制作所 | 作业车辆的省油控制装置及作业车辆的省油控制方法 |
JP5356436B2 (ja) * | 2011-03-01 | 2013-12-04 | 日立建機株式会社 | 建設機械の制御装置 |
JP5877974B2 (ja) | 2011-08-08 | 2016-03-08 | 株式会社アイチコーポレーション | 作業車の制御装置 |
JP5959874B2 (ja) | 2012-02-15 | 2016-08-02 | 日立建機株式会社 | ハイブリッド式作業車両 |
JP6098456B2 (ja) * | 2013-09-18 | 2017-03-22 | 株式会社豊田自動織機 | 産業車両 |
CN105283649B (zh) * | 2013-12-17 | 2018-02-02 | 株式会社小松制作所 | 作业车辆及其控制方法 |
WO2016042649A1 (fr) * | 2014-09-18 | 2016-03-24 | 株式会社小松製作所 | Véhicule de travail et procédé de commande de véhicule de travail |
JP6335340B1 (ja) * | 2016-11-11 | 2018-05-30 | 株式会社小松製作所 | 作業機械 |
JP7003718B2 (ja) | 2018-02-15 | 2022-01-21 | 株式会社豊田自動織機 | 産業車両 |
-
2019
- 2019-10-10 FR FR1911236A patent/FR3101867B1/fr active Active
-
2020
- 2020-09-10 US US17/767,306 patent/US20220388824A1/en active Pending
- 2020-09-10 WO PCT/FR2020/051560 patent/WO2021069809A1/fr unknown
- 2020-09-10 JP JP2022521150A patent/JP7556026B2/ja active Active
- 2020-09-10 CA CA3153508A patent/CA3153508A1/fr active Pending
- 2020-09-10 AU AU2020361566A patent/AU2020361566A1/en active Pending
- 2020-09-10 EP EP20785798.8A patent/EP4041667B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
EP4041667B1 (fr) | 2023-11-01 |
US20220388824A1 (en) | 2022-12-08 |
AU2020361566A1 (en) | 2022-04-21 |
FR3101867B1 (fr) | 2021-10-08 |
WO2021069809A1 (fr) | 2021-04-15 |
JP2022550995A (ja) | 2022-12-06 |
FR3101867A1 (fr) | 2021-04-16 |
JP7556026B2 (ja) | 2024-09-25 |
CA3153508A1 (fr) | 2021-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2868062A1 (fr) | Procede de commande du mouvement d'un support de charge | |
EP3980365B1 (fr) | Engin de manutention de charge, pelleteuse mécanique, chargeuse à godet ou autre et procédé de commande d'un engin de manutention de charge | |
FR2750149A1 (fr) | Procede et appareil de commande d'un outil d'un engin de travaux | |
FR2519690A1 (fr) | Dispositif d'asservissement electro-hydraulique de bras-support articule pour glissiere d'appareil de foration | |
WO2017055774A1 (fr) | Système de modification du rapport de direction pour véhicule à bras télescopique et véhicule correspondant | |
CA2481137C (fr) | Detecteur electronique de hauteur de fleche | |
EP3358087A1 (fr) | Engin de travaux, notamment de chantier, et procédé de commande d'un tel engin | |
EP4041667B1 (fr) | Engin de manutention de charge équipé d'un moteur thermique et procédé de commande de la vitesse en rotation du moteur thermique d'un tel engin | |
FR3089487A1 (fr) | engin moteur flottant | |
EP4408786A1 (fr) | Engin de manutention | |
WO2024156751A1 (fr) | Machine de levage | |
CA2896914C (fr) | Procede de reglage d'une machine de manutention, et machine de manutention correspondante | |
FR3120410A1 (fr) | Optimisation des cinématiques d’un actionneur à gain mécanique variable | |
EP3976891B1 (fr) | Engin de manutention de charge | |
EP4129727B1 (fr) | Engin de manutention de charge | |
FR3130263A1 (fr) | Nacelle élévatrice pour le travail en élévation de personne | |
EP4389683A1 (fr) | Engin de manutention de charge | |
EP4444599A1 (fr) | Machine de manutention comprenant un système de direction hydraulique | |
FR3096979A1 (fr) | Engin de manutention de charge, pelleteuse mécanique, chargeuse à godet ou autre et procédé de commande d'un engin de manutention de charge | |
FR3083536A1 (fr) | Dispositif de levage comprenant un circuit hydraulique perfectionne pour autoriser une phase de retour bennage rapide | |
WO2023094743A1 (fr) | Engin automoteur, notamment un engin automoteur de manutention de charge | |
EP4183609A1 (fr) | Véhicule de travail électrique à traction hydrostatique équipé d'une assistance hydraulique à l'entraînement en déplacement | |
FR3133605A1 (fr) | Machine de manutention comprenant un dispositif de commande sollicitable manuellement |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220425 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230511 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230621 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602020020368 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1627034 Country of ref document: AT Kind code of ref document: T Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240301 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240202 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240201 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240201 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231101 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602020020368 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20240802 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240918 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240920 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240925 Year of fee payment: 5 |