Brake Feeling Simulator Device

Abstract

The brake feeling simulator device (1) for a brake system (2) is adapted to be connected to a brake pedal (3). The brake feeling simulator device (1) includes a reservoir (4) configured to contain a hydraulic fluid and an absorber (5) configured to apply a reaction force to the brake pedal (3) in response to the operation of the brake pedal (3). The reservoir (4) and the absorber (5) are directly fluidly connected to each other by a first hydraulic duct (6), and the first hydraulic duct (6) includes a calibration orifice (7) interposed between the reservoir (4) and the absorber (5).

Description

Technical Field

[0001] Technical Field to Which the Invention Belongs

[0002] The present invention relates to a brake feeling simulator device for a brake-by-wire (hereinafter referred to as "BBW") type brake system of a vehicle with two or more wheels that can be operated by a driver using a brake pedal or a lever, and a brake system equipped with such a brake feeling simulator device.

Background Art

[0003] Background Art

[0004] In a BBW type brake system, there is a decoupling between the force and displacement applied to the brake pedal or lever by the driver and the braking force applied to the wheel by the caliper.

[0005] In a BBW brake system, the force and displacement applied by the driver to the brake pedal or lever are converted into an electrical signal, processed by a control unit, and used to control the operation of the brake system caliper.

[0006] Therefore, it is known to equip a BBW brake system with a brake feeling simulator device connected to the brake pedal or lever and configured to simulate the feel and stiffness of the brake pedal or lever of a conventional hydraulic brake system, thereby mimicking its "stiffness curve".

[0007] The "stiffness curve" means the relationship between the displacement of the brake pedal or lever along the stroke and the respective reaction forces applied to the brake pedal or lever by the simulator device, and thus is also the reaction force applied to the driver by the brake pedal or lever.

[0008] The safety and comfort of driving strictly depend on the rigidity of the brake pedal or lever, which is realized by a device that simulates the feeling of the brake pedal or lever.

[0009] There is known a brake feeling simulator device consisting of a master cylinder connected to the brake pedal.

[0010] The master cylinder is provided with a float, and the float moves by the driver's mechanical action on the brake pedal and has the function of pressurizing the hydraulic fluid.

[0011] The hydraulic fluid is accommodated in a reservoir that is fluidly connected to the master cylinder by a hydraulic connection part.

[0012] Furthermore, the master cylinder is fluidly connected to an absorber by additional hydraulic connection means. The absorber is generally a device provided with a plurality of elastic elements arranged in series and parallel, configured to apply an elastic reaction force to the operation of the brake pedal.

[0013] In such a known simulator device, the connection part between the master cylinder and the absorber is constituted by a calibration orifice.

[0014] The calibration orifice is configured to exert a damping force on the operation of the brake pedal.

[0015] The absorber and the calibration orifice intervening between the master cylinder and the absorber are responsible for generating a reaction force in response to the operation of the brake pedal, which mimics the rigidity curve of a conventional brake system.

[0016] However, due to their large volume, such known simulator devices are difficult to install in the passenger compartment of a vehicle with limited space, whether in a hanging brake pedal configuration or a floor brake pedal configuration. Due to their large volume, known simulator devices are generally installed under the bonnet in the engine room of the vehicle.

[0017] Furthermore, the operation of such known simulator devices has an idle stroke where no reaction force from the simulator device is applied to the brake pedal, which has an adverse effect on the braking operation feeling and driving operation feeling perceived by the driver.

[0018] Therefore, it is desired to make the idle stroke of the simulator device as short as possible and for the reaction force from the simulator device to immediately correspond to the movement of the brake pedal.

[0019] In known simulator devices, the operation of the master cylinder has an idle stroke inherent in the master cylinder because an initial movement of a float is required to block the compensation hole of the master cylinder to start pressurizing the hydraulic fluid.

[0020] Furthermore, known simulator devices exhibit a high tolerance related to the stiffness curves they generate. This high tolerance should be reduced as much as possible, but this is mainly due to the large number of components that make up the known simulator devices, and the combination of their individual tolerances results in a high tolerance when generating the stiffness curve.

[0021] The large number of components also has an adverse effect on the cost and maintenance requirements of known simulator devices.

[0022] A further significant problem with known simulator devices relates to the actual and perceived safety of the driver due to the presence of pressure components in the driver's cab. For example, the master cylinder of the simulator device may be installed near the driver. In fact, in order to ensure the braking action, it is necessary to maintain a constant pressure of about 50 bar inside the master cylinder. SUMMARY OF THE INVENTION

[0023] SOLUTION

[0024] An object of the present invention is to provide a brake feeling simulator device and a brake system equipped with such a simulator device that eliminates at least some of the drawbacks of the prior art.

[0025] In particular, the present invention aims to provide a more compact brake feeling simulator device adapted to be installed in the passenger compartment of a vehicle, both in a hanging brake pedal configuration and a floor brake pedal configuration.

[0026] Furthermore, an object of the present invention is to provide a brake feeling simulator device with minimized idle stroke.

[0027] Furthermore, it is a further specific object of the present invention to provide a brake feeling simulator device and a brake system equipped with such a simulator device in which the tolerance in the generation of the stiffness curve is reduced.

[0028] Furthermore, it is a further specific object of the present invention to provide a brake feeling simulator device and a brake system equipped with such a simulator device that are low-cost and have low maintenance requirements.

[0029] Furthermore, a further specific object of the present invention is to provide a brake feeling simulator device that is substantially and perceptually safe by a driver, and a brake system including such a simulator device.

[0030] These objects and other objects are achieved by a brake feeling simulator device according to an independent claim and a brake system including such a simulator device.

[0031] The dependent claims relate to preferred advantageous embodiments of the present invention.

Brief Description of the Drawings

[0032] Drawings

[0033] To better understand the invention and evaluate its advantages, the following describes its non-limiting exemplary embodiments with reference to the accompanying drawings.

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Embodiments for Carrying Out the Invention

[0051] Description of Some Preferred Embodiments

[0052] The present invention is suitable for being applied to a brake-by-wire (''BBW'') type brake system of a vehicle having two or more wheels that can be actuated by a driver by means of a brake pedal or a brake lever. Therefore, in this specification, unless otherwise specified, the term ''brake pedal'' is meant to mean both a brake pedal of an automobile or the like and a brake lever of a motorcycle, a motorized bicycle, or the like without distinction.

[0053] Referring to the figures, the brake feeling simulator device is generally indicated by reference numeral 1. The brake feeling simulator device 1 is adapted to be used in a brake system 2.

[0054] The brake feeling simulator device 1 is adapted to be connected to a brake pedal 3.

[0055] The brake feeling simulator device 1 includes a reservoir 4 and an absorber 5.

[0056] The reservoir 4 is configured to contain a hydraulic fluid.

[0057] The absorber 5 is configured to apply a reaction force to the brake pedal 3 in response to the operation of the brake pedal 3.

[0058] The absorber 5 is configured to accommodate hydraulic fluid.

[0059] According to one aspect of the invention, the reservoir 4 and the absorber 5 are directly fluidly connected to each other by a first hydraulic duct 6.

[0060] Furthermore, the first hydraulic duct 6 includes a calibration orifice 7 interposed between the reservoir 4 and the absorber 5.

[0061] Specifically, the calibration orifice 7 is configured to attenuate the flow of hydraulic fluid passing between the absorber 5 and the reservoir 4.

[0062] Advantageously, the operation of the brake feeling simulator device 1 configured in this way transmits the flow of hydraulic fluid from the absorber 5 to the reservoir 4 in response to the operation of the brake pedal 3, and this flow is attenuated by the calibration orifice 7.

[0063] Such attenuation, in combination with the canceling action of the absorber 5, generates a reaction force in response to the operation of the brake pedal 3, which mimics the stiffness curve of a conventional braking system.

[0064] The brake feeling simulator device 1 configured in this way is advantageously more compact than prior art simulator devices and is suitable for installation in the passenger compartment of a vehicle in both a hanging brake pedal configuration and a floor brake pedal configuration.

[0065] In fact, the brake feeling simulator device 1 configured in this way lacks a master cylinder interposed between the reservoir 4 and the absorber 5, so the overall size and volume are smaller.

[0066] Specifically, the brake feeling simulator device 1 configured as described above does not have any hydraulic machinery intervening between the reservoir 4 and the absorber 5.

[0067] Furthermore, the brake feeling simulator device 1 configured as described above minimizes the idle stroke of the brake feeling simulator device 1.

[0068] In fact, since the brake feeling simulator device 1 lacks the master cylinder intervening between the reservoir 4 and the absorber 5, the operation of the brake pedal 3 corresponds to the immediate operation of the absorber 5.

[0069] As an additional advantage, the brake feeling simulator device 1 configured as described above has a lower allowable error in the generation of the stiffness curve. This is because the inherent allowable error of the master cylinder that does not exist in the brake feeling simulator device 1 configured as described above is offset.

[0070] As an additional advantage, the brake feeling simulator device 1 configured as described above is simplified compared to the prior art because there is no master cylinder. Such simplification realizes cost reduction and reduction of maintenance requirements.

[0071] Furthermore, the brake feeling simulator device 1 configured as described above exhibits high safety in both real-world safety and driver perception.

[0072] In fact, there is no device that is constantly exposed to high pressure and also requires high sizing in the brake feeling simulator device 1.

[0073] Conversely, the brake feeling simulator device 1 is only exposed to a small transient pressure peak when the hydraulic fluid starts to flow from the absorber 5 to the reservoir 4.

[0074] The brake feeling simulator device 1 is configured to accommodate a hydraulic fluid having fluid communication inside the absorber 5 and the reservoir 4.

[0075] According to an embodiment, the brake feeling simulator device 1 is configured to include a hydraulic fluid accommodated with fluid communication inside the absorber 5 and the reservoir 4.

[0076] Therefore, in the operating state, the hydraulic fluid fills at least a part of the absorber 5, the first hydraulic duct 6, and the reservoir 4.

[0077] Advantageously, the brake feeling simulator device 1 configured in this way minimizes the idle stroke of the brake feeling simulator device 1 because the absorber 5 is in a hydraulic fluid bath.

[0078] According to an embodiment of the invention, the absorber 5 extends along the operating shaft 8 between a second absorber end 10 opposite to the first absorber end 9.

[0079] According to an embodiment, the first hydraulic duct 6 extends along a direction substantially transverse to the operating shaft 8.

[0080] Advantageously, such a configuration reduces the overall volume of the brake feeling simulator device 1.

[0081] According to an embodiment, the absorber 5 is configured to be connectable to the brake pedal 3.

[0082] Desirably, the absorber 5 is configured to be connectable to the brake pedal 3 at the first absorber end 9.

[0083] Furthermore, the absorber 5 is configured to be operable by the brake pedal 3 at the first absorber end 9.

[0084] According to the embodiment, the absorber 5 is configured such that the actuation of the brake pedal 3 corresponds to the pressurization of the hydraulic fluid contained in the absorber 5, whereby the flow of the hydraulic fluid is transmitted from the absorber 5 through the first hydraulic duct 6 to the reservoir 4.

[0085] According to the embodiment, the absorber 5 includes an outer peripheral wall 14 that extends in a direction substantially parallel to the actuating shaft 8 between the first absorber end 9 and the second absorber end 10.

[0086] The outer peripheral wall 14 defines a housing compartment 15 configured to accommodate the hydraulic fluid.

[0087] According to the embodiment, the reservoir 4 is composed of a housing wall 11 and a bottom wall 12.

[0088] The bottom wall 12 intersects the housing wall 11 substantially transversely.

[0089] The bottom wall 12 and the housing wall 11 form a reservoir compartment 13 configured to accommodate the hydraulic fluid.

[0090] According to the embodiment, the housing wall 11 forms a replenishment port. Preferably, the replenishment port is arranged opposite to the bottom wall 12.

[0091] The replenishment port is configured to replenish the hydraulic working fluid in the reservoir 4.

[0092] The replenishment port can be closed by a cap 17.

[0093] According to the embodiment, the first hydraulic duct 6 extends through the bottom wall 12 of the reservoir 4 and the outer peripheral wall 14 of the absorber 5.

[0094] Therefore, the first hydraulic duct 6 fluidly connects the reservoir compartment 13 and the housing compartment 15.

[0095] Advantageously, with such a configuration, the overall volume of the brake feeling simulator device 1 is reduced.

[0096] According to one embodiment, the reservoir 4 is fixed to the absorber 5.

[0097] According to one embodiment, the reservoir 4 is formed integrally with the absorber 5.

[0098] According to one embodiment, the bottom wall 12 extends in a plane substantially parallel to the operating shaft 8, and the housing wall 11 is substantially perpendicular to the operating shaft 8.

[0099] According to one embodiment, the bottom wall 12 of the reservoir 4 substantially coincides with a part of the outer peripheral wall 14 of the absorber 5.

[0100] According to an embodiment, the reservoir 4 at least partially penetrates the absorber 5.

[0101] According to an embodiment, the bottom wall 12 of the reservoir 4 at least partially penetrates the outer peripheral wall 14 of the absorber 5.

[0102] According to an alternative embodiment, the reservoir 4 is separate from the absorber 5. The fluid connection between the reservoir 4 and the absorber 5 is ensured by the first hydraulic duct 6.

[0103] Advantageously, the reservoir 4 configured in this way can be freely positioned and oriented with respect to the absorber 5.

[0104] According to an embodiment, the first hydraulic duct consists of a flexible pipe extending between the reservoir 4 and the absorber 5.

[0105] According to an embodiment, the calibration orifice 7 is configured to generate the damping force required by the driver.

[0106] According to an embodiment, the calibration orifice 7 forms a cross-section with a diameter between 0.7 mm and 1.5 mm.

[0107] According to an embodiment, the calibration orifice 7 has a length of less than 3.0 mm.

[0108] According to an embodiment, the first hydraulic duct 6 has a length of less than 10.0 mm.

[0109] According to this embodiment, the distance between the reservoir compartment 13 and the housing compartment 15 is less than 3.0 mm.

[0110] According to an embodiment, the first hydraulic duct 6 has a length of less than 3.0 mm.

[0111] According to this embodiment, the distance between the reservoir compartment 13 and the housing compartment 15 is less than 3.0 mm.

[0112] According to an embodiment, the absorber 5 includes at least one elastic element 16 disposed inside the housing compartment 15.

[0113] The at least one elastic element 16 is configured to apply a reaction force in response to the operation of the brake feeling simulator device 1. Specifically, the at least one elastic element 16 is configured to apply a reaction force to the brake pedal 3 in response to the operation of the brake pedal 3 by the driver.

[0114] The at least one elastic element 16 is configured to deflect along a direction substantially parallel to the operating shaft 8.

[0115] According to an embodiment, the absorber 5 is composed of a plurality of elastic elements 16 arranged in series and / or in parallel within the housing compartment 15.

[0116] According to an embodiment, the elastic element 16 is composed of a plurality of compression coil springs arranged substantially coaxially with the operating shaft 8.

[0117] According to an embodiment, the elastic element 16 is composed of a conical spring washer and / or a square spring and / or a torsion spring and / or a strip spring and / or a shaped spring.

[0118] According to an embodiment, in the operating state, at least one elastic element 16 is immersed in the hydraulic fluid.

[0119] Preferably, a plurality of compression coil springs arranged substantially coaxially with the operating shaft 8 are immersed in the hydraulic fluid.

[0120] According to one embodiment, the brake feeling simulator device 1 includes a second hydraulic duct 18 that fluidly connects the reservoir 4 and the absorber 5.

[0121] The second hydraulic duct 18 is separate from the first hydraulic duct 6.

[0122] Advantageously, the second hydraulic duct 18 is configured such that after the operation of the brake feeling simulator device 1 is released, the hydraulic fluid returns from the reservoir 4 to the absorber 5 more quickly.

[0123] According to an embodiment, the second hydraulic duct 18 includes a check valve 19 interposed between the reservoir 4 and the absorber 5.

[0124] The check valve 19 is configured to allow the flow of hydraulic fluid from the reservoir 4 to the absorber 5 and prevent the flow of hydraulic fluid from the absorber 5 to the reservoir 4.

[0125] Therefore, during operation of the brake feeling simulator device 1, the absorber 5 pushes hydraulic fluid towards the reservoir 4 through the first hydraulic duct 6 and the calibrated gap 7, thereby damping the flow of the hydraulic fluid. The check valve 19 allows the flow of hydraulic fluid from the absorber 5 towards the reservoir 4 to flow only through the first hydraulic duct 6. Conversely, when the brake feeling simulator device 1 is released, the hydraulic oil flows out through both the first hydraulic duct 6 and the second hydraulic duct 18, and thus flows out towards the absorber 5 more rapidly.

[0126] According to an embodiment, the second hydraulic duct 18 extends parallel to the first hydraulic duct 6.

[0127] Advantageously, such a configuration reduces the overall volume of the brake feeling simulator device 1.

[0128] According to one embodiment, the absorber 5 includes a thrust shaft 22. The thrust shaft 22 is configured to be biased against at least one elastic element 16 in response to the actuation of the brake pedal 3.

[0129] The thrust shaft 22 is disposed inside the housing compartment 15.

[0130] According to one embodiment, the thrust shaft 22 is configured to be biased in a translational direction along the actuating shaft 8 against at least one spring element 16 by the brake pedal 3. Thereby, the absorber 5 applies a reaction force when the brake pedal 3 is actuated.

[0131] According to an embodiment, the brake feeling simulator device 1 includes at least one sensor 21.

[0132] The at least one sensor 21 is configured to detect the operation and / or movement of the brake feeling simulator device 1.

[0133] According to an embodiment, at least one sensor 21 is configured to detect the movement of at least one component of the brake feeling simulator device 1.

[0134] According to an embodiment, at least one sensor 21 is configured to detect the movement of the thrust shaft 22 within the absorber 5.

[0135] Preferably, at least one sensor 21 is configured to detect the translation of the thrust shaft 22 along the actuating shaft 8.

[0136] Advantageously, such a translation of the thrust shaft 22 that can be actuated by the brake pedal 3 can be correlated with the movement of the brake pedal 3 by the driver. The movement of the brake pedal 3 can be used to determine the braking force required by the driver from the brake system 2.

[0137] According to an embodiment, at least one sensor 21 is any one of a position sensor, a pressure sensor, a force sensor, or a combination thereof.

[0138] According to an embodiment, at least one sensor 21 is a laser position sensor, an infrared position sensor, an elastomer sensor, a piezoelectric sensor, a Hall effect sensor, a magnetoresistive sensor, a linear magnetic sensor, or a combination thereof.

[0139] According to an embodiment, at least one sensor 21 is disposed inside the absorber 5. Preferably, at least one sensor 21 is disposed inside the housing compartment 15.

[0140] According to an embodiment, at least one sensor 21 is disposed connected to the thrust shaft 22.

[0141] Furthermore, according to one aspect of the present invention, the brake system 2 comprises the brake feeling simulator device 1 described above.

[0142] Furthermore, the braking system 2 includes a brake pedal 3 operatively connected to the brake feeling simulator device 1.

[0143] According to an embodiment, the brake pedal 3 is connected to an absorber 5, and the operation of the brake pedal 3 corresponds to the pressurization of the hydraulic fluid contained in the absorber 5, and the flow of the hydraulic fluid from the absorber 5 toward the reservoir 4 is transmitted via the first hydraulic duct 6.

[0144] According to an embodiment, the brake pedal 3 is connected to the absorber 5 by mechanical connection means 20, preferably by means of a multi-joint connection.

[0145] Therefore, the operating force applied to the brake pedal 3 by the driver is mechanically transmitted to the absorber 5.

[0146] Advantageously, the connection between the brake pedal 3 and the absorber 5 is without a hydraulic connection.

[0147] Specifically, the above-described braking system 2 is configured such that the operation of the brake pedal 3 by the driver corresponds to the reaction force operation on the brake pedal 3 by the brake feel simulator device 1 with respect to the brake pedal 3.

[0148] The reaction force on the brake pedal 3 by the brake feeling simulator device 1 against the operation of the brake pedal 3 is realized by the combined canceling action of the absorber 5 and the calibration orifice 7.

[0149] The absorber 5 is configured to oppose the operation of the brake pedal 3, for example, by at least one elastic element 16 configured to oppose the operation of the brake pedal 3.

[0150] The calibration orifice 7 is configured to generate a damping force on the hydraulic fluid that is carried from the absorber 5 through the first hydraulic duct 6 to the reservoir 4 under the operation of the brake pedal 3, and such a damping force cancels the operation of the brake pedal 3.

[0151] The combined canceling action of the absorber 5 and the calibration orifice 7 is configured to simulate the feel and stiffness of the brake pedal or lever of a conventional hydraulic brake system.

[0152] When the brake pedal 3 is released, the hydraulic fluid that was previously carried from the absorber 5 to the reservoir 4 flows out from the reservoir 4 to the absorber 5 through the first hydraulic duct 6 and, in some cases, also through the second hydraulic duct 18.

[0153] According to an embodiment, the brake system 2 comprises an electronic processing unit.

[0154] Furthermore, the brake system 2 comprises at least one brake caliper.

[0155] The electronic processing unit is electrically connected to the brake feel simulator device 1 and at least one brake caliper.

[0156] The electronic processing unit is configured to actuate at least one brake caliper when the operation and / or movement of the brake feel simulator device 1 is detected by at least one sensor 21.

[0157] Of course, those skilled in the art can make changes or modifications to the present invention without departing from the scope of the following claims.

Explanation of Reference Numerals

[0158] List of Reference Numerals 1. Brake feel simulator device 2. Brake system 3. Brake pedal 4. Tank 5. Absorber 6. First hydraulic duct 7. Calibration orifice 8. Actuating shaft 9. First absorber end 10. Second absorber end 11. Containing wall 12. Bottom wall 13. Tank compartment 14. Outer peripheral wall 15. Housing compartment 16. Elastic element 17. Cap 18. Second hydraulic duct 19. Check valve 20. Mechanical connection part 21. Sensor 22. Thrust shaft

Claims

1. A brake system (2) comprising a brake feeling simulator device (1) and a brake pedal (3) operationally connected to the brake feeling simulator device (1), The brake feeling simulator device (1) is A reservoir (4) configured to contain hydraulic fluid, The system includes an absorber (5) configured to act on the brake pedal (3) to exert a reaction force against the operation of the brake pedal (3), The reservoir (4) and the absorber (5) are directly fluidically connected to each other by the first hydraulic duct (6). The first hydraulic duct (6) includes a calibration orifice (7) interposed between the reservoir (4) and the absorber (5), The brake system (2) is such that the brake pedal (3) is connected to the absorber (5) via a multi-joint mechanical connection (20), and the operating force applied to the brake pedal (3) by the driver is mechanically transmitted to the absorber (5).

2. The brake system (2) according to claim 1, A brake system (2) configured to contain a fluid-communicating hydraulic fluid inside the absorber (5) and the reservoir (4).

3. The brake system (2) according to claim 1, The absorber (5) extends along the operating shaft (8) between the first absorber end (9) and the second absorber end (10) on the opposite side of the first absorber end (9). The first hydraulic duct (6) extends along a direction substantially perpendicular to the operating shaft (8), The absorber (5) is configured to be connectable to the brake pedal (3), A brake system (2) is configured such that the operation of the brake pedal (3) corresponds to the pressurization of the hydraulic fluid contained in the absorber (5), and the hydraulic fluid flows from the absorber (5) to the reservoir (4) through the first hydraulic duct (6).

4. The brake system (2) according to claim 3, The absorber (5) has an outer peripheral wall (14) between the first absorber end (9) and the second absorber end (10) that extends in a direction substantially parallel to the operating shaft (8), The outer peripheral wall (14) defines a housing compartment (15) configured to contain hydraulic fluid, The reservoir (4) comprises a housing wall (11) and a bottom wall (12) substantially transverse to the housing wall (11), and the bottom wall (12) and the housing wall (11) form a reservoir compartment (13) configured to house hydraulic fluid. The first hydraulic duct (6) extends through the bottom wall (12) of the reservoir (4) and the outer peripheral wall (14) of the absorber (5), thereby fluidly connecting the reservoir compartment (13) and the housing compartment (15). The reservoir (4) is fixed to the absorber (5), or the reservoir (4) is manufactured integrally with the absorber (5), and / or The bottom wall (12) extends in a plane substantially parallel to the operating shaft (8), and the housing wall (11) is substantially perpendicular to the operating shaft (8), and / or The reservoir (4) is at least partially interpenetrated with the absorber (5). Alternatively, a brake system (2) in which the reservoir (4) is separate from the absorber (5).

5. The brake system (2) according to claim 1, The calibration orifice (7) has a cross-section with a diameter between 0.7 mm and 1.5 mm. and / or, The length of the calibration orifice (7) is less than 3.0 mm. and / or, The length of the first hydraulic duct (6) is less than 10.0 mm. Brake system (2).

6. The brake system (2) according to claim 4, The absorber (5) includes an outer peripheral wall (14) that extends along the operating shaft (8) and defines the housing compartment (15), The absorber (5) includes at least one elastic element (16) located within the housing compartment (15) and configured to be biased along a direction substantially parallel to the operating shaft (8), In the operating state, the at least one elastic element (16) is immersed in hydraulic fluid. Brake system (2), wherein the absorber (5) includes a compression coil spring and / or a conical spring washer, and / or a square spring, and / or a torsion spring, and / or a strip spring, and / or a shaped spring, all arranged substantially coaxially with the operating shaft (8).

7. The brake system (2) according to claim 1, The system includes a second hydraulic duct (18) that fluidly connects the reservoir (4) and the absorber (5), The second hydraulic duct (18) is separate from the first hydraulic duct (6), The brake system (2) includes a second hydraulic duct (18) that extends parallel to the first hydraulic duct (6).

8. The brake system (2) according to claim 7, The second hydraulic duct (18) includes a check valve (19) interposed between the reservoir (4) and the absorber (5), Brake system (2), wherein the check valve (19) is configured to allow the flow of hydraulic fluid from the reservoir (4) to the absorber (5) and to prohibit the flow of hydraulic fluid from the absorber (5) to the reservoir (4).

9. The brake system (2) according to claim 1, The brake feeling simulator device (1) is equipped with at least one sensor (21) configured to detect the operation and / or behavior of the brake feeling simulator device (1), The at least one sensor (21) is a position sensor, a pressure sensor, a force sensor, or a combination thereof. and / or, The at least one sensor (21) is a laser position sensor, an infrared position sensor, an elastomer sensor, a piezoelectric sensor, a Hall effect sensor, a magnetoresistive sensor, a linear magnetic sensor, or a combination thereof. and / or, The at least one sensor (21) is located inside the absorber (5). Brake system (2).

10. The brake system (2) according to claim 6, The absorber (5) includes a thrust shaft (22) configured to be biased toward the at least one elastic element (16) in response to the operation of the brake pedal (3), The brake system (2) is configured such that at least one sensor (21) detects the movement of the thrust shaft (22) within the absorber (5).

11. The brake system (2) according to claim 1, The brake pedal (3) is connected to the absorber (5), The operation of the brake pedal (3) corresponds to the pressurization of the hydraulic fluid contained in the absorber (5), A brake system (2) in which hydraulic fluid flows from the absorber (5) through the first hydraulic duct (6) to the reservoir (4).

12. The brake system (2) according to claim 9, It comprises an electronic processing unit and at least one brake caliper, The electronic processing unit is electrically connected to the at least one brake caliper and the brake feeling simulator device (1) according to claim 9 or 10. The electronic processing unit is configured to activate the at least one brake caliper when the at least one sensor (21) detects the operation and / or movement of the brake feeling simulator device (1), in a brake system (2).

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