Method for operating a boosted brake system of a vehicle and control device for a boosted brake system of a vehicle

The invention relates to a method for operating a brake boosted brake system of a vehicle, comprising the monitoring of a mode of operation of the brake boosted brake system with regard to agreement of a total braking torque applied to at least one wheel of the vehicle by the brake boosted brake system with a specified target total braking torque and/or with regard to a displacement of a brake medium volume of the brake boosted brake system to a force/pressure conversion element ( 22 ) of the brake boosted brake system, if a braking torque difference between the applied total braking torque and the specified target total braking torque is greater than a specified reference difference, and/or if the brake medium volume displaced to the force/pressure conversion element ( 22 ) is larger than a specified reference volume; further comprising the defining of a target boosting force change with regard to a boosting force (Fu) provided by a brake booster ( 14 ) of the brake boosted brake system, taking into account the braking torque difference and/or the displaced brake medium volume, and outputting the target boosting force change to the brake booster ( 14 ). The invention further relates to a corresponding control device for a brake boosted brake system of a vehicle.

Pressure damping device for brake system

Disclosed is a pressure damping device for a brake system. The pressure damping device is installed at the brake system having a hydraulic block provided with a first hydraulic circuit to control transfer of fluid pressures generated by a first port of a master cylinder and discharged from a first pump to a first wheel, and a second hydraulic circuit to control transfer of fluid pressures generated by a second port of the master cylinder and discharged from a second pump to a second wheel, and the hydraulic block includes a bore connecting the master cylinder with discharge outlets of the first and second pumps and formed between first and second main oil paths to communicate with the first and second main oil paths, and a pressure damping unit provided in the bore and having a volume changed according to the fluid pressures from the first and second pumps.

HIGH PRESSURE ACCUMULATOR OF BRAKE SYSTEM

Disclosed herein is a high pressure accumulator of a brake system capable of attenuating pressure pulsation of oil discharged from a pump. The present invention is directed to a high pressure accumulator a brake system in which a damping chamber disposed to attenuate pressure pulsation is optionally partitioned into a plurality of layers to change characteristics of a flow of brake oil so that pressure pulsation can be efficiently reduced. Therefore, it is an aspect of the present invention to provide a high pressure accumulator of a brake system in which an orifice part is integrally formed so that a processing time for installing an orifice separately and an assembling time therefor can be reduced. 1. A high pressure accumulator of a brake system disposed on a modulator block to reduce pressure pulsation of brake oil pressed by driving of a pump and pumped , the high pressure accumulator comprising:a closing member that closes one end of a bore having one opened end and is in communication with an inport through which the brake oil is introduced and an outport through which the brake oil is discharged; anda damping housing that is installed in the bore and has a damping chamber formed therein in communication with the inport and the outport,wherein an orifice part is formed integrally with the damping housing in a portion in which the brake oil is discharged through the outport, anda damping member is installed in the damping housing and partitions the damping chamber into a plurality of layers so that the partitioned plurality of layers are in communication with each other, andthe damping member comprises a body part having one opened side to partition the damping chamber into a plurality of layers and a connection hole formed in a bottom surface of the body part in communication with the adjacent damping chamber partitioned by the body part, andan inclined part is formed on the bottom surface of the body part so that the brake oil easily flows into the adjacent ...

Hydraulic pressure control unit for vehicle brake system

The hydraulic pressure control unit (50) includes the plural pumps (60) used to increase a hydraulic pressure of brake fluid in each hydraulic circuit. The hydraulic pressure control unit (50) also includes a discharge channel (140) provided on discharge sides of the plural pumps (60). The discharge channel (140) includes: a merging channel (141) having a downstream end; and plural distributary channels (142) respectively communicating with the discharge sides of the pumps (60). When, of connected portions between the merging channel (141) and the distributary channels (142), the connected portion on a lowermost stream side is defined as a lowermost-stream side connected portion (143), the hydraulic pressure control unit (50) is provided with a damper unit (80) in a region on a downstream side in the merging channel (141) with the lowermost-stream side connected portion (143) being a reference, the damper unit (80) dampening the pulsation of the brake fluid discharged from each of the pumps (60).

Hydraulic Unit

A hydraulic unit, in particular for a controllable-slip vehicle brake system, includes a housing block, a pump, a first fluid duct, and a second fluid duct. The housing block defines a pump receptacle that receives the pump, which has a suction side and a pressure side. The first duct crosses the pump receptacle in a region of the pressure side of the pump. The second duct leads into the pump receptacle in the region of the pressure side. The first and second ducts are sealed off from each over via a separation point. The hydraulic unit is configured to enable contact with a damping device configured to damp pulsations and reduce operating noise of the hydraulic unit without negatively impacting functional properties of the hydraulic unit, in particular on pressure build-up dynamics of the vehicle brake system, or without jeopardizing a compact construction of the hydraulic unit. 1. A hydraulic unit , comprising:a housing block that defines a pump receptacle aligned along a longitudinal axis and configured to receive a pump having a pump suction side and a pump pressure side;a first fluid duct intersecting the pump receptacle in a region for the pump pressure side;a second fluid duct opening into the pump receptacle in the region for the pump pressure side; anda first separation point that is disposed between points at which the first fluid duct and the second fluid duct respectively open into the pump receptacle and that seals off the first fluid duct and the second fluid duct from each other.2. The hydraulic unit as claimed in claim 1 , further comprising a damper receptacle that is configured to receive a damper element and that is positioned on the housing block claim 1 , wherein the first fluid duct and the second fluid duct open into the damper receptacle.3. The hydraulic unit as claimed in claim 2 , further comprising a damper element received in the damper receptacle claim 2 , wherein the damper element together with the damper receptacle forms a second ...

Hydraulic unit for brake system

Provided is a hydraulic unit of a brake system including a housing; an oil supply part configured to supply oil to the housing; an oil discharge part configured to discharge the oil, supplied to the housing through the oil supply part, to the outside of the housing; and a piston movably mounted on the housing, and configured to open and close the oil supply part and the oil discharge part.

Slip-Controllable Vehicle Brake System

A slip-controllable vehicle brake system includes a drivable pressure generator configured to supply at least one wheel brake of a brake circuit with pressure medium. The pressure generator has a pump inlet valve and a pump outlet valve to control the throughput of the pressure medium. Novel system functions, such as pedestrian protection, require that the pressure generator has a drive with increased power to provide high pressure medium volumes to the wheel brakes at a faster rate. In the case of ABS braking, a high braking pressure generated by the drive works against the starting of the pressure generator and increases the starting current. To ease the starting of the drive and to limit the required starting current, a mechanism is provided downstream of the pump outlet valve which prevents an exerting of the pressure generator on the pressure side with the pressure of the main brake cylinder. 1. A vehicle brake system with wheel slip control , comprising:a drivable pressure generator configured to supply at least one wheel brake with fluid,wherein the pressure generator is connected by a suction side of the pressure generator to a return from the wheel brake controlled by a pressure reduction valve and by its a delivery side of the pressure generator to an inlet of the wheel brake controlled by a pressure build-up valve and connected to an actuatable brake master cylinder of the vehicle brake system,wherein the pressure generator includes at least one pump inlet valve and at least one pump discharge valve to control the fluid rate of flow, andwherein a mechanism is provided downstream of the pump discharge valve to prevent the pressure of the brake master cylinder acting on the delivery side of the pressure generator.2. The vehicle brake system with wheel slip control as claimed in claim 1 , wherein the mechanism includes a non-return valve that allows a flow to pass in the delivery direction of the pressure generator and that closes in the opposite direction ...

PULSATION DAMPING DEVICE OF HYDRAULIC BRAKE SYSTEM

Disclosed herein is a pulsation damping device of a hydraulic brake system. The pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump comprise a sleeve inserted into a bore which communicates with an inport into which the brake oil is introduced and an outport through which the brake oil is discharged, wherein one end of the sleeve is open and the other end is closed, a damping member accommodated in the sleeve and hollowed to form a damping space therein, and a stopper member configured to block one open end of the bore and coupled to an opening of the sleeve. 1. A pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump , the device comprising:a sleeve inserted into a bore which communicates with an inport into which the brake oil is introduced and an outport through which the brake oil is discharged, wherein one end of the sleeve is open and the other end is closed;a damping member accommodated in the sleeve and hollowed to form a damping space therein; anda stopper member configured to block one open end of the bore and coupled to an opening of the sleeve.2. The device of claim 1 , wherein the sleeve includes a shoulder portion which extends from the opening claim 1 , and the stopper member includes a step corresponding to the shoulder portion.3. The device of claim 1 , wherein:a concave-convex portion is formed on an outer circumferential surface of the damping member in a longitudinal direction; andan auxiliary damping space is formed between the sleeve and the concave-convex portion.4. The device of claim 3 , wherein the stopper member includes a first coupling portion which is coupled to the damping member for sealing the damping space and a second coupling portion which is coupled to the sleeve for sealing between the damping space and the auxiliary damping space.5. The device of claim 4 , wherein the damping member ...

Pulsation damping device of hydraulic brake system

Disclosed herein is a pulsation damping device of a hydraulic brake system. The pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump, the device comprises a damping portion installed to be inserted into a bore in communication with an inport into which the brake oil flows and an outport through which the brake oil is discharged, and a cap coupled to one end of the bore to block the one end, wherein a flow path is formed on an outer circumferential surface of the damping portion to guide the brake oil introduced into the inport to be discharged through the outport, and the flow path is formed in a longitudinal direction of the damping portion to be continuously connected from the inport to the outport.

HYDRAULIC BRAKE SYSTEM

Disclosed herein is a hydraulic brake system. The hydraulic brake system comprises a damping device configured to attenuate pressure pulsation of brake oil discharged according to a driving of a pump, wherein the damping device includes a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened one side, a damping piston slidably installed inside the sleeve, and an elastic member provided inside the sleeve and configured to elastically support the damping piston, and wherein a slot having a width which is varied is formed at an inner circumferential surface of the sleeve in a direction in which the brake oil flows so that a variable orifice is formed between the damping piston and the sleeve. 1. A hydraulic brake system comprising:a damping device configured to attenuate pressure pulsation of brake oil discharged according to a driving of a pump,wherein the damping device includes:a sleeve fixed to a bore that is connected to a discharge end of the pump and having an opened one side;a damping piston slidably installed inside the sleeve; andan elastic member provided inside the sleeve and configured to elastically support the damping piston, andwherein a slot having a width which is varied is formed at an inner circumferential surface of the sleeve in a direction in which the brake oil flows so that a variable orifice is formed between the damping piston and the sleeve.2. The hydraulic brake system of claim 1 , wherein a cross-sectional area of the variable orifice at which the brake oil passes through is gradually increased toward a direction in which the brake oil is discharged.3. The hydraulic brake system of claim 1 , wherein the damping piston is provided to be moved to pressurize the elastic member when hydraulic pressure of the brake oil discharged from the pump is equal to or greater than a predetermined pressure.4. The hydraulic brake system of claim 1 , wherein the damping piston includes a flange having an outer ...

Slip-Controllable Vehicle Brake System

A slip-controllable vehicle brake system includes a brake circuit to which a master brake cylinder is connected to a wheel brake. The connection between the brake circuit and the master brake cylinder is controlled by a changeover valve. To supply the wheel brake with pressure medium, the brake circuit has a pressure generator that is externally driven and interacts with a pressure build-up valve of the wheel brake. The brake system includes a pressure pulsation damping device with a pulsation damper and a resistor which forms a flow cross-section. The pressure build-up valve and/or the changeover valve is continuously adjustable and steplessly switched from an open position into a blocked position. The flow cross-section of the resistor is actualized by an electronic triggering of the pressure build-up valve or the changeover valve such that it is variably adjusted to changing environmental or operating conditions. 1. A slip-controllable vehicle brake system , comprising:a brake circuit with at least one wheel brake;a pressure generator and a pressure build-up valve configured to supply the wheel brake with a pressure medium;a switchover valve configured to control a pressure medium connection of the brake circuit to a brake master cylinder of the vehicle brake system; anda pressure pulsation damping device arranged downstream of the pressure generator, the pressure pulsation damping device having a resistance element with a flow cross section that impedes a pressure medium flow,wherein one or more of the pressure build-up valve and the switchover valve is configured as a continuously adjustable valve that is configured to be changed over in a controlled manner from an open position into a shut-off position via an unlimited number of intermediate positions by way of electronic actuation, andwherein the flow cross section of the resistance element of the pressure pulsation damping device is formed by the one or more of the pressure build-up valve and the switchover ...

Damping Device and Slip-Controllable Vehicle Brake System

A damping device includes a structure that defines an inlet and an outlet configured to supply pressure medium to the damping device, a first pressure chamber connected to the inlet and to the outlet, a second pressure chamber configured to receive a compressible medium, and a third pressure chamber having a pressure level. The damping device further includes a separating device and a pressure-medium connection. The separating device is positioned between the first pressure chamber and the second pressure chamber, and is configured to separate the third pressure chamber and the second pressure chamber and enable pressurization of the second pressure chamber with the pressure level of the third pressure chamber. The pressure-medium connection has an integral resistance and connects the first pressure chamber to the third pressure chamber. 1. A damping device , including a structure that defines:an inlet and an outlet configured to supply pressure medium to the damping device;a first pressure chamber connected to the inlet and to the outlet;a second pressure chamber configured to receive a compressible medium;a third pressure chamber having a pressure level; and a separating device positioned between the first pressure chamber and the second pressure chamber and configured to separate the third pressure chamber from the second pressure chamber and enable pressurization of the second pressure chamber with the pressure level of the third pressure chamber; and', 'a pressure-medium connection that has an integral resistance and that connects to the first pressure chamber to the third pressure chamber., 'the damping device further including2. The damping device according to claim 1 , wherein the separating device includes at least one elastically deformable membrane.3. The damping device according to claim 1 , wherein the separating device includes an elastically deformable claim 1 , hollow-bodied damping element.4. The damping device according to claim 2 , wherein the ...

HYDRAULIC BRAKING DEVICE

The present invention pertains to a hydraulic braking device which is provided with: a housing; a pump disposed within the housing; a motor that drives the pump; a plurality of solenoid valves disposed within the housing; WC ports that are provided to the housing and connected to wheel cylinders; and flow channels provided within the housing to connect between the pump, the solenoid valves and the WC ports, and in which the motor and the solenoid valves are controlled such that fluid pressure is generated in the wheel cylinders. The hydraulic braking device is further provided with a Helmholtz damper that is disposed within the housing to be connected to the flow channels and reduces pulses generated by the driving of the pump. 1. A hydraulic braking device comprising: a housing; a pump disposed in the housing; a motor for driving the pump; a plurality of solenoid valves disposed in the housing; a wheel cylinder port provided in the housing and connected to a wheel cylinder; and a flow channel provided in the housing to connect the pump , the plurality of solenoid valves , and the wheel cylinder port ,the motor and the plurality of solenoid valves being controlled to generate fluid pressure in the wheel cylinder,the hydraulic braking device comprising:a Helmholtz type damper disposed in the housing and connected to the flow channel to reduce pulsation generated by driving of the pump using a principle of Helmholtz resonance.2. The hydraulic braking device according to claim 1 , further comprising:a master cylinder port provided in the housing and connected to a master cylinder, and a reservoir disposed in the housing,whereinthe flow channel includes a main flow channel that connects the wheel cylinder port and the master cylinder port, a pressure decreasing flow channel that connects the wheel cylinder port and the reservoir, and a discharge flow channel that connects a discharge valve of the pump and a connecting portion on the main flow channel;the plurality of ...

Pressure Pulsation Reducing Device and Pulsation Damping Member of Hydraulic System

Provided is a novel pressure pulsation reducing device of a hydraulic system that reduces a stress generated in a metal diaphragm and is excellent in durability. A plurality of concentric recess portions projecting toward an interior space of a pulsation damping member is formed on one of metal diaphragms, and a plurality of concentric recess portions projecting toward the interior space of the pulsation damping member is formed on the other metal diaphragm likewise. When a predetermined pressure is applied to the metal diaphragms, at least one recess portion of one of the metal diaphragms and at least one recess portion of the other metal diaphragm are in contact with each other. 1. A pressure pulsation reducing device of a hydraulic system , the pressure pulsation reducing device storing , inside a fluid chamber connected to piping of the hydraulic system , one or more pulsation damping member formed of a first metal diaphragm and a second metal diaphragm and provided with an interior space formed between the metal diaphragms , whereinthe first metal diaphragm has a first recess portion drawn toward the interior space side,the second metal diaphragm has a first recess portion drawn toward the interior space side, the first recess portion having a curvature larger than a curvature of the first recess portion and being able to abut on the first recess portion of the first metal diaphragm, andin a case where a pressure inside the fluid chamber reaches a first predetermined set pressure, the first recess portion of the first metal diaphragm and the first recess portion of the second metal diaphragm are brought into contact with each other.2. The pressure pulsation reducing device of a hydraulic system according to claim 1 , whereinthe first metal diaphragm has a second recess portion provided on a central axis side of the first recess portion of the first metal diaphragm and drawn toward the interior space side,the second metal diaphragm has a second recess portion ...

ELECTRIC BRAKE SYSTEM

An electric brake system comprising: a master cylinder configured to a reservoir storing oil therein and configured to generate hydraulic pressure according to a pedal effort of a brake pedal; a cut valve installed at a backup flow path connecting the master cylinder to a wheel cylinder; a simulation device including a simulation chamber connected to the master cylinder at a front end of the cut valve to provide a reaction force according to the pedal effort of the brake pedal, a simulation valve provided at a flow path connecting the master cylinder to the simulation chamber; a hydraulic pressure supply device configured to operate in response to an electrical signal of a pedal displacement sensor sensing a displacement of the brake pedal, and a damping member provided at a flow path connecting the hydraulic pressure chamber to the front end of the cut valve, wherein the damping member delivers a pressure pulsation generated in the hydraulic pressure chamber to the brake pedal in an anti-lock brake system (ABS) mode. 1. An electric brake system comprising:a master cylinder configured to a reservoir storing oil therein and configured to generate hydraulic pressure according to a pedal effort of a brake pedal;a cut valve installed at a backup flow path connecting the master cylinder to a wheel cylinder;a simulation device including a simulation chamber connected to the master cylinder at a front end of the cut valve to provide a reaction force according to the pedal effort of the brake pedal and configured to store the oil therein, and a simulation valve provided at a flow path connecting the master cylinder to the simulation chamber, or connecting the simulation chamber to the reservoir;a hydraulic pressure supply device configured to operate in response to an electrical signal of a pedal displacement sensor sensing a displacement of the brake pedal, and deliver hydraulic pressure, which is generated by pressurizing a hydraulic pressure chamber connected to the ...

Pressure Change Damper for a Hydraulic Vehicle Brake System with Brake Force Control, and Hydraulic Vehicle Brake System with Brake Force Control with such a Pressure Change Damper

A pressure change damper for a pressure side of a hydraulic pump of a hydraulic vehicle brake system with brake force control includes a valve assembly. The valve assembly is fitted in the pressure change damper and has a tubular valve that defines a lip of a damper element between the valve assembly and a damper housing pressed into the valve housing. The valve housing and a tubular valve seat part are produced by forming. 1. A pressure change damper , comprising:a tubular damper housing open at one end;a hose-like damper element open at one end, the damper element comprised of an elastic material and arranged in the damper housing, the open end of the damper element held sealing on or in the open end of the damper housing; anda valve assembly including (i) a tubular valve housing arranged at the open end of the damper housing and (ii) a valve arranged in the valve housing, the valve having a tubular valve seat part and a valve seat that is pressed into the valve housing.2. The pressure change damper according to claim 1 , wherein the valve seat is configured as a constriction by forming of the valve seat part.3. The pressure change damper according to claim 1 , wherein the valve housing has a widening configured as a receiver for the open end of the damper housing claim 1 , the widening configured by forming of the valve housing.4. The pressure change damper according to claim 1 , wherein one or more of the valve housing and the valve seat part are configured by forming.5. The pressure change damper according to claim 3 , wherein:the receiver of the valve housing for the open end of the damper housing is a tubular collar which transforms into a circumferential channel with which the collar transforms into the tubular valve housing,the circumferential channel of the valve housing together with the open end of the damper housing forms a circumferential groove which tapers to a groove opening, andthe hose-like damper element has a circumferential lip on its open end ...

VEHICLE BRAKING SYSTEM WITH ABS EMULATION

A vehicle braking system includes a wheel cylinder, a brake pedal, a master cylinder, a master cylinder circuit, a primary braking unit operable to generate a braking force at the wheel cylinder in a primary mode, decoupled from the master cylinder circuit, a secondary braking unit including a second electrically-actuated pressure generating unit and operable to generate a braking force at the wheel cylinder in a secondary mode of operation, a plurality of valves configured to provide anti-lock braking at the wheel cylinder upon loss of traction during braking in the primary mode of operation, and a controller programmed to actuate the plurality of valves and further programmed to actuate the second electrically-actuated pressure generating unit upon loss of traction in the primary mode of operation to generate pulsations within the master cylinder circuit to provide a feedback force at the brake pedal indicative of the anti-lock braking. 1. A vehicle braking system comprising:a wheel cylinder;a brake pedal;a master cylinder configured to receive an input from the brake pedal;a master cylinder circuit connected to the master cylinder;a primary braking unit including a first electrically-actuated pressure generating unit distinct from the master cylinder and operable to generate a braking force at the wheel cylinder in a primary mode of operation, decoupled from the master cylinder circuit;a secondary braking unit including a second electrically-actuated pressure generating unit distinct from the master cylinder and operable to generate a braking force at the wheel cylinder in a secondary mode of operation;a plurality of valves configured to transition between open and closed positions to provide anti-lock braking at the wheel cylinder upon loss of traction during braking in the primary mode of operation; anda controller programmed to actuate the plurality of valves and further programmed to actuate the second electrically-actuated pressure generating unit upon loss ...

VEHICLE BRAKE DEVICE

A vehicle brake device provided with a hydraulic pressure generating portion, an actuator and a controlling portion which maintains a driving force of the driving portion when a control subject pressure in a control subject chamber is within a dead zone, wherein the control subject pressure varies in response to a variation of the master pressure and a pulsation is generated in the master pressure accompanying an operation of the actuator. The vehicle brake device further includes a rigidity information obtaining portion which obtains a rigidity information and a dead zone setting portion which sets the dead zone based on the rigidity information obtained by the rigidity information obtaining portion such that the higher the rigidity of the control subject chamber, or the higher the probability of rigidity increase of the control subject chamber, the wider the dead zone is set. 2. The vehicle brake device according to claim 1 , whereinthe rigidity information obtaining portion obtains a subject pressure information which relates to the control subject pressure as the rigidity information, andthe dead zone setting portion sets the dead zone based on the subject pressure information such that the higher the control subject pressure, the wider the dead zone is set.3. The vehicle brake device according to or claim 1 , wherein:the actuator forms an anti-lock brake system and the rigidity information obtaining portion obtains a road surface information which relates to a friction coefficient on a travelling road surface as the rigidity information and whereinthe dead zone setting portion sets the dead zone based on the road surface information such that the lower the friction coefficient, the wider the dead zone is set.4. The vehicle brake device according to claim 1 , whereinthe dead zone setting portion sets the dead zone such that the larger a deviation between the master pressure and the wheel pressure which is a hydraulic pressure in the wheel cylinder, the wider the ...

Pump Attenuator Bypass Valve

A pump attenuator bypass valve () is located at an outlet of a pump () in a vehicle braking system () between the pump () and an attenuator (). The attenuator bypass valve () includes a bypass valve housing (), a first fluid flow path (), and a second fluid flow path (). The first fluid flow path () is defined in the housing () and is configured to allow continuous flow of fluid when the pump () operates at a first pump flow rate. The second fluid flow path () is defined in the housing () and is configured to bypass the first fluid flow path () and to allow continuous flow of fluid when the pump () operates at a second pump flow rate higher than the first pump flow rate. 1401002003010303440100200. A pump attenuator bypass valve (//) located at an outlet of a pump () in a vehicle braking system () between the pump () and an attenuator () , the pump attenuator bypass valve (//) comprising:{'b': '41', 'a bypass valve housing ();'}{'b': 74', '57', '179', '220', '208, 'a first fluid flow path (, //, ); and'}{'b': 80', '183, 'a second fluid flow path (/);'}characterized in that:{'b': 74', '57', '179', '220', '208', '41', '30, 'the first fluid flow path (, //, ) is defined in the bypass valve housing () and is configured to allow continuous flow of fluid when the pump () operates at a first pump flow rate;'}{'b': 80', '183', '41', '74', '57', '179', '220', '208', '30, 'the second fluid flow path (/) is defined in the bypass valve housing () and is configured to bypass the first fluid flow path (, //, ) and to allow continuous flow of fluid when the pump () operates at a second pump flow rate higher than the first pump flow rate.'}24010020030401002003030. The pump attenuator bypass valve (//) according to claim 1 , wherein the flow of fluid through the pump () is a pulsating pump flow claim 1 , and wherein the pump attenuator bypass valve (//) is configured to maintain fluid flow in the second fluid flow path when the pump () operates at the second pump flow rate and when ...

Valve Assembly for a Pressure Change Damper for a Braking-Force-Regulated, Hydraulic Vehicle Brake System, Hydraulic Block for a Vehicle Brake System of Said Type, and Vehicle Brake System Having a Hydraulic Block of Said Type

A valve assembly for a pressure change damper for a braking-force-regulated hydraulic vehicle brake system includes a valve housing, two valves, and a valve seat body. The valve housing includes an open side. The two valves are arranged in the valve housing. The valve seat body includes two valve seats for the two valves and is configured to close the open side of the valve housing.

Pulsation reduction apparatus of hydraulic piston pump

The present invention relates to a pulsation reduction apparatus of a hydraulic piston pump, comprising: a block housing that has one end connected to the first hydraulic circuit and the other end connected to the second hydraulic circuit; a damper that is embedded in the block housing, absorbs pressure resulting from working fluid introduced to the first hydraulic circuit, assists with pressure increase of the second hydraulic circuit, and allows shape deformation; and viscosity damping units that are embedded in the block housing, are arranged between the first hydraulic circuit and the damper and between the second hydraulic circuit and the damper, and reduce viscosity of the working fluid introduced from the first and second hydraulic circuits, thereby reducing pressure pulsation and stably performing shock absorption and pressure increase at the same time with a relatively simple configuration.

PULSATION DAMPING DEVICE OF HYDRAULIC BRAKE SYSTEM

Disclosed is a pulsation damping device of a hydraulic brake system including a first damper having a first damping chamber whose volume is varied by the hydraulic pressure of the brake oil, and a second damper having a second damping chamber whose volume is varied by the hydraulic pressure of the brake oil, wherein the volume change rate of the first damping chamber relative to the hydraulic pressure of the brake oil is provided to be larger than the volume change rate of the second damping chamber, and the hydraulic pressure of the corresponding brake oil in the first damping chamber when reaching the maximum variable volume is provided to be smaller than the hydraulic pressure of the corresponding brake oil in the second damping chamber when reaching the maximum variable volume. 1. A pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump , comprising:a first damper having a first damping chamber whose volume is varied by the hydraulic pressure of the brake oil; anda second damper having a second damping chamber whose volume is varied by the hydraulic pressure of the brake oil,wherein the volume change rate of the first damping chamber relative to the hydraulic pressure of the brake oil is provided to be larger than the volume change rate of the second damping chamber, andthe hydraulic pressure of the corresponding brake oil in the first damping chamber when reaching the maximum variable volume is provided to be smaller than the hydraulic pressure of the corresponding brake oil in the second damping chamber when reaching the maximum variable volume.2. The pulsation damping device according to claim 1 , wherein:the first damper further includes a first damping member having the first damping chamber formed therein, a first stopper member coupled to the first damping member and having a first flow passage communicating a hydraulic passage through which the brake oil flows to the first damping ...

Hydraulic Unit

A hydraulic unit, in particular a hydraulic unit for a slip-controllable vehicle brake system, includes a housing block, a pump, and a damping device. The pump has an intake side and a delivery side. The housing block has a pump receptacle that holds the pump, a first fluid duct that intersects the pump receptacle in a region of the delivery side of the pump, and a second fluid duct opening into the pump receptacle in the region of the delivery side of the pump, and a first separation point that seals off the first fluid duct from the second fluid duct. The damping device damps pulsations and reduces operating noise of the hydraulic unit without (i) having a detrimental effect on functional characteristics of the unit, in particular on pressure build-up dynamics of the vehicle brake system, or without (ii) jeopardizing a compact construction of the hydraulic unit. 1. A hydraulic unit comprising: a pump receiving portion configured to receive a pump, the pump receiving portion arranged on the housing block and oriented along a longitudinal axis, the pump having a pump intake side and a pump delivery side;', 'a first fluid duct opening into the pump receiving portion at a first location in a region of the pump delivery side;', 'a second fluid duct opening out into the pump receiving portion at a second location in the region of the pump delivery side and;', 'a first separation point positioned between the first location whereat the first fluid duct opens into the pump receiving portion and the second location whereat the second fluid duct opens into the pump receiving portion, the first separation point sealing the first fluid duct and the second fluid duct off from each other., 'a housing block including2. The hydraulic unit as claimed in claim 1 , wherein the housing block further includes a damper receiving portion configured to receive a damper element claim 1 , the damper receiving portion arranged on the housing block so that the first fluid duct and the second ...

Pressure Variation Damper for a Hydraulic Vehicle Brake System, and Corresponding Vehicle Brake System

A pressure variation damper for a slip-regulated, hydraulic vehicle brake system includes a damper housing and a tubular damper element. The damper element is disposed in the damper housing and configured for elastic deformation. The damper element is subjected on an inside and/or on an outside to a fluid. Possible pressure variations of the fluid are to be damped. The damper element comprises a corrugation on the outside and a corrugation on the inside configured to reduce a chance in a wall thickness of the damper element owing to the corrugation on the outside. 1. A pressure variation damper for a slip-regulated , hydraulic vehicle brake system , comprising:a damper housing; anda tubular damper element disposed in the damper housing and configured for elastic deformation,wherein the damper element is subjected on an inside and/or on an outside to a fluid,wherein possible pressure variations of the fluid are to be damped, andwherein the damper element comprises a corrugation on the outside and a corrugation on the inside configured to reduce a change in a wall thickness of the damper element owing to the corrugation on the outside.2. The pressure variation damper as claimed in claim 1 , wherein the damper element further comprises an open end and a closed end.3. The pressure variation damper as claimed in claim 1 , wherein the damper element is thick-walled.4. The pressure variation damper as claimed in claim 1 , wherein the damper element defines a non-uniform wall thickness.5. The pressure variation damper as claimed in claim 4 , wherein the wall thickness of the damper element in a region of a plurality of wave peaks on the outside is greater than the wall thickness of the damper element in a region of a plurality of wave troughs on the outside.6. The pressure variation damper as claimed in claim 1 , wherein the damper element defines an elastically variable wall thickness.7. The pressure variation damper as claimed in claim 1 , wherein the damper element is ...

BRAKE DEVICE FOR VEHICLE

A brake device includes a first flow path unit guiding a braking hydraulic pressure by connecting some of wheel cylinder units and a master cylinder unit; a second flow path unit guiding a braking hydraulic pressure by connecting the others of the wheel cylinder units and the master cylinder unit; a third flow path unit connecting a reservoir and pump units, and connected with the first flow path unit; a fourth flow path unit connecting the reservoir and the pump units, and connected with the second flow path unit; a fifth flow path unit connecting the reservoir and the first flow path unit; a sixth flow path unit connecting the reservoir and the second flow path unit; a seventh flow path unit selectively connecting the first and second flow path units; and an eighth flow path unit connecting the second flow path unit and the reservoir. 1. A brake device for a vehicle , comprising:a first flow path unit configured to guide a braking hydraulic pressure by connecting some of a plurality of wheel cylinder units and a master cylinder unit;a second flow path unit configured to guide a braking hydraulic pressure by connecting the others of the plurality of wheel cylinder units and the master cylinder unit;a third flow path unit configured to connect a reservoir unit which is connected with the master cylinder unit and stores oil, and pump units which are installed to generate a braking hydraulic pressure and be interlocked with one another to alternately perform a suction operation and a discharge operation, and connected with the first flow path unit;a fourth flow path unit configured to connect the reservoir unit and the pump units, and connected with the second flow path unit;a fifth flow path unit configured to connect the reservoir unit and the first flow path unit;a sixth flow path unit configured to connect the reservoir unit and the second flow path unit;a seventh flow path unit configured to selectively connect the first flow path unit and the second flow path ...

Hydraulic Dual Circuit Vehicle Brake System

A hydraulic dual circuit vehicle brake system includes a slip control member and a piston/cylinder unit between pressure sides of two piston pumps for a more homogeneous brake fluid delivery. The piston of the piston/cylinder unit is clamped in elastically between two elastic and annular displacement bodies.

Hydraulic Unit for a Slip Control System of a Hydraulic Vehicle Brake System

A hydraulic unit for a slip control system of a hydraulic vehicle brake system includes a pressure change damper arranged radially with respect to a piston pump and laterally to the outside of an intake valve on one valve side of a hydraulic block of the hydraulic unit. The hydraulic unit has hydraulically separate annular channels that surround the piston pump. The pressure change damper has an inlet and an outlet that issue into the hydraulically separate annular channels. 1. A hydraulic unit for a slip control system of a hydraulic vehicle brake system , comprising:a hydraulic block defining a first socket and a second socket;a pressure change damper arranged in the second socket; anda piston pump arranged in the first socket, the first socket and the piston pump configured to form two hydraulically separate annular channels that surround the piston pump, wherein a first annular channel of the two hydraulically separate annular channels communicates with an outlet of the piston pump and with an inlet of the pressure change damper, andwherein a second annular channel of the two hydraulically separate annular channels communicates with an outlet of the pressure change damper and with a brake fluid line in the hydraulic block that connects an isolation valve to pressure buildup valves of the slip control system.2. The hydraulic unit according to claim 1 , wherein the piston pump has two encircling grooves configured to form the annular channels in the first socket of the hydraulic block.3. The hydraulic unit according to claim 1 , wherein the hydraulic block has at least one brake fluid line that (i) connects one of the two annular channels in the first socket to a bottom of the second socket and (ii) issues eccentrically into the bottom of the second socket.4. The hydraulic unit according to claim 3 , wherein the at least one brake fluid line issues at a circumference of the bottom of the second socket in the hydraulic block.5. The hydraulic unit according to claim ...

用于运行制动系统的方法及制动系统

本发明涉及一种用于运行用于机动车的制动系统的方法，所述制动系统在“线控制动”运行方式中不仅可由车辆驾驶员而且可与车辆驾驶员无关地控制，优选在“线控制动”运行方式中运行，并且可在至少一个备用运行方式中运行，在备用运行方式中仅可通过车辆驾驶员运行。所述制动系统主要具有电液式的压力和体积调节装置(5)以及压力调制单元，前者电子调控地输出制动系统压力，后者对于每个车轮制动器(8，9，10，11)具有各一个进入阀(6a‑6d)和各一个排出阀(7a‑7d)，用于调整依车轮而定的制动压力。为了调整依车轮而定的制动压力，模拟地控制进入和排出阀(6a‑6d；7a‑7d)，其方式是所述进入和排出阀被加载不同的电流，以便将由压力和体积调节装置(5)提供的压力介质体积流量配置给具有压力变化需求的车轮制动器(8‑11)。此外，本发明还涉及一种制动系统。

전자제어식 브레이크 시스템용 펌프

본 발명은 펌프내에서 유동하는 유체의 맥동 및 노이즈를 저감할 수 있는 전자제어식 브레이크 시스템용 펌프에 관한 것이다. 본 발명은 모듈레이터블록에 형성되며 흡입포트 및 토출포트와 연통된 보어와, 상기 보어에 왕복 가능하게 설치되며 내부에 흡입유로가 형성된 피스톤과, 상기 피스톤의 위치에 따라 상기 흡입유로의 출구측을 개폐하는 흡입밸브부와, 상기 보어의 일측에 구비되어 상기 흡입밸브부와 상반되게 작동하는 배출밸브부를 포함하는 전자제어식 브레이크 시스템용 펌프에 있어서, 상기 배출밸브부는 밸브시트와, 상기 밸브시트의 주위를 감싸는 슬리브와, 상기 슬리브와 상기 밸브시트사이에 마련되어 상기 밸브시트의 유로를 개폐하는 토출볼과, 상기 슬리브의 후측에 마련되어 상기 보어를 외부와 차단시키는 밸브캡을 포함하되, 상기 슬리브와 상기 밸브캡사이에는 완충부가 형성되어 유체의 맥동을 저감케 할 수 있는 효과가 있다.

High pressure accumulator of brake system

Disclosed is a high pressure accumulator of a brake system, which can reduce a pressure pulse of oil discharged from a pump. According to an embodiment of the present invention, the high pressure accumulator of a brake system comprises: a damping housing installed in a bore of a modulator block, and provided to interconnect an in-port into which oil of the modulator block flows and an out-port through which oil is discharged; a hole plate installed to divide an internal space of the damping housing, and provided with a plate having a plurality of holes; and a closing member closing one end of the bore for the damping housing and the hole plate to be fixated to the bore.

Hydraulic brake system

A hydraulic brake system is disclosed. According to an aspect of the present invention, provided is the hydraulic brake system having a high pressure accumulator for attenuating pressure pulsation of brake oil discharged by operation of a pump. The high pressure accumulator comprises a damping member which is arranged in a bore interconnected to an in-port which brake oil flows into and an out-port which brake oil is discharged to, and has a bypass flow path connecting the in-port and the out-port.

브레이크 시스템

본 발명은 펌프구동에 의해 발생하는 주기적인 압력 맥동을 저감시킬 수 있는 브레이크 시스템에 관한 것으로, 단차부가 형성된 실린더 및 캡 사이를 왕복이동하는 피스톤이 마련된 댐퍼부재를 제공하며, 피스톤이 댐퍼부재 한쪽으로 과도하게 밀리는 현상을 방지하고 펌프 구동에 의해 발생하는 압력 맥동을 감쇄시켜 브레이크 제어 시 전체적인 작동소음을 줄여 제품의 신뢰성을 높일 수 있는 효과가 있다.

Pressure damping device for brake system

브레이크 시스템의 압력 완충장치가 개시된다. 본 발명의 실시예에 따른 브레이크 시스템의 압력 완충장치는 각각 두 개의 차륜으로 전달되는 액압을 제어하기 위한 제1 및 제2 유압서킷을 연결하도록 유압블럭의 유로에 고정되고 상기 제1 및 제2 유압서킷의 메인유로와 각각 연통하는 제1 및 제2 액압홀이 형성되며 일측이 개방된 원통형의 하우징; 상기 하우징의 개방된 일측을 폐쇄하도록 결합된 마개부재; 서로 일정간격 이격되어 상기 하우징 내에서 진퇴하도록 설치된 제1 피스톤과 제2 피스톤; 및 상기 제1 및 제2 피스톤 사이에 개재되어 상기 제1 및 제2 피스톤에 탄성력을 제공하는 스프링;을 포함하고, 상기 각 피스톤의 외면에 실링부재가 설치되어 상기 제1 및 제2 피스톤 사이가 밀폐되고, 상기 제1 및 제2 피스톤 사이에 액압의 압력에 따라 체적이 변하도록 공기댐핑공간이 형성된다. A pressure shock absorber of a brake system is disclosed. Pressure buffer of the brake system according to an embodiment of the present invention is fixed to the flow path of the hydraulic block to connect the first and second hydraulic circuit for controlling the hydraulic pressure transmitted to the two wheels, respectively, and the first and second hydraulic pressure A cylindrical housing having first and second hydraulic holes communicating with the main channel of the circuit, respectively, and having one side open; A closure member coupled to close an open side of the housing; A first piston and a second piston installed to retreat in the housing at regular intervals from each other; And a spring interposed between the first and second pistons to provide elastic force to the first and second pistons, wherein a sealing member is installed on an outer surface of each of the pistons so that the first and second pistons are disposed between the first and second pistons. An air damping space is formed between the first and second pistons so that the volume changes according to the pressure of the hydraulic pressure.

Piston pump of vehicle

본 발명은 브레이크 시스템을 위한 차량의 피스톤펌프에 있어서, 오일이 토출되는 홀이 형성된 밸브시트와, 상기 홀을 개폐시키는 볼과, 상기 볼에 탄성력을 제공하는 탄성부재와, 상기 밸브시트에 결합되어 상기 홀에서 토출된 오일의 압력을 감압시키는 오리피스와, 상기 오리피스 및 상기 탄성부재가 지지되는 캡을 포함하고, 상기 밸브시트의 홀을 통해 토출된 오일의 압력을 감압시키는 오리피스가 배치되어 차량의 제동 시 브레이크 페달로 전달되는 맥동력을 감소시키며, 이를 통해 운전자의 감성을 만족시키는 효과가 있다. The present invention relates to a piston pump for a vehicle for a braking system, which comprises a valve seat having a hole through which oil is discharged, a ball for opening and closing the hole, an elastic member for providing an elastic force to the ball, An orifice for reducing the pressure of the oil discharged from the hole and a cap for supporting the orifice and the elastic member and an orifice for reducing the pressure of the oil discharged through the hole of the valve seat is disposed, The brake force transmitted to the brake pedal is reduced, thereby satisfying the sensibility of the driver.

Brake control device

Brake device for vehicle

본 발명은 차량용 제동장치에 관한 것으로, 복수개의 휠실린더부 중 일부와 마스터실린더부를 연결하여 제동유압을 안내하는 제1유로부와, 복수개의 상기 휠실린더부 중 나머지와 마스터실린더부를 연결하여 제동유압을 안내하는 제2유로부와, 마스터실린더부와 연결되어 오일이 저장되는 리저버부와, 제동유압을 생성하고 서로 연동되어 흡입 작동과 토출 작동을 교대로 행하도록 설치된 펌프부를 연결하고, 제1유로부와 연결되는 제3유로부와, 리저버부와 펌프부를 연결하고, 제2유로부와 연결되는 제4유로부와, 리저버부와 제1유로부를 연결하는 제5유로부와, 리저버부와 제2유로부를 연결하는 제6유로부와, 제1유로부와 제2유로부를 선택적으로 연결할 수 있는 제7유로부와, 제2유로부와 리저버부를 연결하는 제8유로부를 포함하여, 펌프부 사용 효율을 증대시키고, 성능 저하를 방지할 수 있다.

Hydraulic high pressure pump for an automobile brake

내용없음. None.

Method for operating a brake system and a brake system

本发明涉及一种用于运行用于机动车的制动系统的方法，所述制动系统在“线控制动”运行方式中不仅可由车辆驾驶员而且可与车辆驾驶员无关地控制，优选在“线控制动”运行方式中运行，并且可在至少一个备用运行方式中运行，在备用运行方式中仅可通过车辆驾驶员运行。所述制动系统主要具有电液式的压力和体积调节装置(5)以及压力调制单元，前者电子调控地输出制动系统压力，后者对于每个车轮制动器(8，9，10，11)具有各一个进入阀(6a-6d)和各一个排出阀(7a-7d)，用于调整依车轮而定的制动压力。为了调整依车轮而定的制动压力，模拟地控制进入和排出阀(6a-6d；7a-7d)，其方式是所述进入和排出阀被加载不同的电流，以便将由压力和体积调节装置(5)提供的压力介质体积流量配置给具有压力变化需求的车轮制动器(8-11)。此外，本发明还涉及一种制动系统。

Brake fluid system

本发明公开一种液压制动系统，根据本发明的一个方面，液压制动系统包括降低通过泵的驱动排出的制动液的压力脉动的高压储油器，所述高压储油器包括：阻尼部件，设置在与制动液流入的输入端口和制动液排出的输出端口连通的内腔中，并形成有连接所述输入端口和所述输出端口的迂回流路；以及加强部件，设置在所述阻尼部件上，以提高所述阻尼部件的耐久性。

Hydraulic unit for a slip control of a hydraulic vehicle brake system

Die Erfindung betrifft ein Hydraulikaggregat (1) für eine Schlupfregelung einer hydraulischen Fahrzeugbremsanlage mit einem Hydraulikblock (2), in den ein Druckänderungsdämpfer (6) eingesetzt ist, der mindestens ein Rückschlagventil (23, 26) aufweist. Die Erfindung schlägt vor, den Druckänderungsdämpfer (6) so einzupressen, dass er zwei Anschlüsse (17, 18) hydraulisch voneinander trennt.

Electronically regulated vehicle brake assembly, has two chambers hermetically separated from each other, where one chamber is subjected with pressuring medium of assembly, and another chamber is provided with filling and variable volume

The assembly (1) has a flexible metal bellow damper provided completely and integrally in a receiving hole (5) of a receiving body (3) as a separate element. Two chambers (8, 9) are hermetically separated from each other. The chamber (8) is subjected with a pressuring medium of the assembly and is provided with a variable volume. The chamber (9) is provided with a filling and a variable volume, where the filling contains a flexible filling material, fluid or a gel. The damper is arranged at a bore catch (12) i.e. at a cover for forming an independently manageable component.

Bremssystemdämpfvorrichtung

Die Erfindung betrifft eine Bremssystemdämpfvorrichtung (10) mit einem ersten Raum (20), an den hydraulischer Druck anzulegen ist, und einem zweiten Raum (24), in dem sich ein kompressibles Medium befindet, und einem ersten Trennelement (22) zum Abtrennen des ersten Raumes (20) vom zweiten Raum (24), wobei die Bremssystemdämpfvorrichtung (10) einen dritten Raum (28), in dem sich ein kompressibles Medium befindet, und ein zweites Trennelement (26) zum Abtrennen des zweiten Raumes (24) vom dritten Raum (28) aufweist, wobei der zweite Raum (24) mit dem dritten Raum (28) mittels eines in dem zweiten Trennelement (26) gestalteten Durchlasses (50) mediumleitend verbunden ist, und mit dem ersten Trennelement (22) ein Verschlusselement (34) zu bewegen ist, mittels dem der Durchlass (50) zu verschließen ist, sobald in dem ersten Raum (20) der hydraulische Druck einen vordefinierten Druckwert (68) erreicht hat, und wobei das zweite Trennelement (26) aus Metall hergestellt ist. The invention relates to a brake system damping device (10) having a first space (20) to which hydraulic pressure is to be applied, and a second space (24) in which a compressible medium is located, and a first separating element (22) for separating the first Room (20) from the second room (24), the brake system damping device (10) a third room (28), in which a compressible medium is located, and a second separating element (26) for separating the second room (24) from the third room (28), the second space (24) being connected in a medium-conducting manner to the third space (28) by means of a passage (50) designed in the second separating element (26), and a closure element (34) to the first separating element (22) is to be moved by means of which the passage (50) is to be closed as soon as the hydraulic pressure in the first space (20) has reached a predefined pressure value (68), and the second separating element (26) is made of metal.

Hydraulic unit for a slip control of a hydraulic vehicle brake system

Die Erfindung betrifft ein Hydraulikaggregat (1) für eine Schlupfregelung einer hydraulischen Fahrzeugbremsanlage und schlägt vor, einen Druckänderungsdämpfer (20) radial zu einer Kolbenpumpe (9) und seitlich außerhalb eines Ansaugventils (32) an einer Ventilseite (22) eines Hydraulikblocks (2) des Hydraulikaggregats (1) anzuordnen. Außerdem schlägt die Erfindung hydraulisch getrennte Ringkanäle (17, 18) vor, die die Kolbenpumpe (9) umschließen und in die ein Einlass und ein Auslass des Druckänderungsdämpfers (20) münden. The invention relates to a hydraulic unit (1) for a slip control of a hydraulic vehicle brake system and proposes a pressure change damper (20) radially to a piston pump (9) and laterally outside of a suction valve (32) on a valve side (22) of a hydraulic block (2) of the Hydraulic unit (1) to arrange. In addition, the invention proposes hydraulically separate annular channels (17, 18) which surround the piston pump (9) and into which an inlet and an outlet of the pressure change damper (20) open.

Slip-controlled hydraulic vehicle brake system and combination of a pressure vibration damper and a check valve for such a vehicle brake system

Die Erfindung betrifft eine schlupfgeregelte hydraulische Fahrzeugbremsanlage (1) mit einer Hydropumpe (9), an deren Druckseite ein Druckschwingungsdämpfer (14) und eine Drossel (15) angeschlossen sind. Die Erfindung schlägt ein Rückschlagventil (16) vor, das in Richtung des Druckschwingungsdämpfers (14) sperrt. Dadurch steht eine Elastizität des Druckschwingungsdämpfers (14) bei einer Bremsbetätigung mit dem Hauptbremszylinder (2) ohne Schlupfregelung nicht zur Verfügung. The invention relates to a slip-controlled hydraulic vehicle brake system (1) with a hydraulic pump (9), to whose pressure side a pressure vibration damper (14) and a throttle (15) are connected. The invention proposes a check valve (16) which blocks in the direction of the pressure vibration damper (14). As a result, an elasticity of the pressure oscillation damper (14) is not available during a brake actuation with the master brake cylinder (2) without slip control.

Hydraulic break system

펌프구동에 의해 발생하는 주기적인 압력 맥동을 저감시킬 수 있는 브레이크 시스템이 제공된다. 본 발명에 따른 브레이크 시스템은 브레이크 패달의 작동에 따라 제동 유압을 형성하는 마스터실린더, 마스터실린더의 제동 유압을 전달받아 제동력을 발휘하도록 차량의 전륜(FR,FL)과 후륜(RR,RL)에 각각 마련되는 휠 브레이크, 휠 브레이크의 입구측과 출구측에 각각 마련되어 제동 유압의 흐름을 제어하는 솔레노이드밸브, 솔레노이드밸브 작동 시 휠 브레이크측으로부터 토출된 오일이 일시 저장되는 저압어큐뮤레이터, 저압어큐뮤레이터에 저장된 오일을 가압시켜 필요에 따라 휠 브레이크측 또는 마스터실린더측으로 토출시키는 펌프, 펌프의 토출구측에 마련된 오리피스를 구비하는 브레이크 시스템에 있어서, 펌프의 토출구측과 오리피스 사이에 댐퍼부재가 마련됨으로써 펌프 구동에 의해 발생하는 압력 맥동을 감쇄시켜 브레이크 제어 시 전체적인 작동소음을 줄여 제품 신뢰성을 높일 수 있다. A brake system is provided that can reduce the periodic pressure pulsations generated by pump driving. The brake system according to the present invention is applied to the front wheel (FR, FL) and the rear wheel (RR, RL) of the vehicle to exert braking force by receiving the braking hydraulic pressure of the master cylinder, the master cylinder to form the braking hydraulic pressure in accordance with the operation of the brake pedal Wheel brakes to be provided, solenoid valves provided on the inlet and outlet sides of the wheel brakes to control the flow of braking hydraulic pressure, low pressure accumulator and low pressure accumulator to temporarily store oil discharged from the wheel brake side when the solenoid valve is operated. A brake system having a pump for pressurizing oil stored in the pump to discharge to the wheel brake side or the master cylinder side as necessary, and an orifice provided at the discharge port side of the pump, wherein a damper member is provided between the discharge port side and the orifice of the pump to drive the pump. To reduce the pressure pulsation caused by Product reliability can be improved by reducing the operating noise.

Electronic hydraulic brake device

본 발명은 전자식 유압 브레이크 장치에 관한 것으로, 유압을 휠실린더부로 공급하는 마스터실린더부와, 마스터실린더부와 휠실린더부를 연결하여 유압을 안내하는 한 쌍의 유로부와, 유로부에 유압을 공급하는 펌프부와, 한 쌍의 유로부를 연결하고 각 유로부간 압력차이를 완화시키는 저감부를 포함하여, 오일의 맥동저감을 달성할 수 있다.

Pressure damping device for brake system

브레이크 시스템의 압력 완충장치가 개시된다. 본 발명의 실시예에 따른 브레이크 시스템의 압력 완충장치는 각각 두 개의 차륜으로 전달되는 액압을 제어하기 위한 제1 및 제2 유압서킷을 연결하도록 유압블럭의 유로에 고정되고 상기 제1 및 제2 유압서킷의 메인유로와 각각 연통하는 제1 및 제2 액압홀이 형성되며 일측이 개방된 원통형의 하우징; 상기 하우징의 개방된 일측을 폐쇄하도록 결합된 마개부재; 상기 하우징의 내주면과 접하는 플랜지부와 상기 플랜지부의 중심으로부터 상기 하우징의 타측으로 연장 형성된 가압부를 갖추고 상기 하우징 내에서 진퇴하도록 설치된 제1 피스톤; 상기 하우징의 내주면과 접하는 플랜지부와 상기 플랜지부의 중심으로부터 상기 하우징의 일측으로 연장 형성된 가압부를 갖추고 상기 제1 피스톤과 일정간격 이격되어 상기 하우징 내에서 진퇴하도록 설치된 제2 피스톤; 상기 제1 및 제2 피스톤 사이에 개재되어 상기 제1 및 제2 피스톤에 탄성력을 제공하는 스프링; 및 상기 제1 및 제2 피스톤의 각 가압부의 외주면을 감싸도록 설치된 완충부재;를 포함하고, 상기 제1 및 제2 피스톤 사이는 밀폐되어 액압의 압력에 따라 체적이 변하도록 공기댐핑공간으로 형성된다. A pressure shock absorber of a brake system is disclosed. Pressure buffer of the brake system according to an embodiment of the present invention is fixed to the flow path of the hydraulic block to connect the first and second hydraulic circuit for controlling the hydraulic pressure transmitted to the two wheels, respectively, and the first and second hydraulic pressure A cylindrical housing having first and second hydraulic holes communicating with the main channel of the circuit, respectively, and having one side open; A closure member coupled to close an open side of the housing; A first piston having a flange portion in contact with an inner circumferential surface of the housing and a pressing portion extending from the center of the flange portion to the other side of the housing; A second piston provided with a flange portion in contact with an inner circumferential surface of the housing and a pressing portion extending from a center of the flange portion to one side of the housing and spaced apart from the first piston at a predetermined interval so as to retreat in the housing; A spring interposed between the first and second pistons to provide an elastic force to the first and second pistons; And a cushioning member installed to surround the outer circumferential surfaces of the respective pressurizing portions of the first and second pistons, wherein the first ...

Vehicle's BTCS control circuit

본 발명은 차량의 브레이크 구동력 제어시스템(BTCS)의 제어회로에 관한 것으로서, 마스터실린더에서 발생되는 제동압이 휠브레이크로 공급되는 통로를 형성하는 브레이크라인과, 상기 브레이크라인을 제어하는 유압제어장치(HCU)와, 상기 유압제어장치를 제어하는 전자제어장치(ECU)를 포함하는 차량의 브레이크 구동력 제어시스템(BTCS)의 제어회로에 있어서, 상기 유압펌프의 입구측에 위치하는 환류라인에서 분기되어 상기 마스터실린더에 장착된 저장탱크와 연결되는 셕션라인이 설치되며; 상기 환류라인에서 상기 셕션라인이 분기되는 지점의 상류측에 체크밸브가 설치되며; 상기 브레이크라인에서 상기 환류라인과 합류되는 지점의 상류측에 평상시에 개방되어 있는 TCS솔레노이드밸브가 설치되어 있어, 종래의 어큐뮬레이터가 삭제가능하고 차량 BTCS가 소형, 경량화되며 가공 및 조립이 단순해지고 비용이 절감되는 작용효과가 있다. The present invention relates to a control circuit of a brake driving force control system (BTCS) of a vehicle, comprising: a brake line forming a passage through which a braking pressure generated in a master cylinder is supplied to a wheel brake, and a hydraulic control device controlling the brake line ( In a control circuit of a brake driving force control system (BTCS) of a vehicle including an HCU and an electronic control unit (ECU) for controlling the hydraulic control unit, branched from a reflux line located at an inlet side of the hydraulic pump. A section line is installed to be connected to the storage tank mounted to the master cylinder; A check valve is installed upstream of a point at which the section line branches in the reflux line; The TCS solenoid valve which is normally open upstream of the point where it joins with the reflux line in the brake line is installed, so that the conventional accumulator can be eliminated, the vehicle BTCS is small and light, the processing and assembly are simple, and the cost is low. There is a saving effect.

Hydraulic unit for slip control in a hydraulic vehicle braking system

本发明涉及一种用于车辆液压制动设备的防滑控制系统的液压装置，该液压装置具有液压块(2)，压力改变缓冲器(6)插入所述液压块中，压力改变缓冲器具有至少一个止回阀(23、26)。本发明提出，将压力改变缓冲器(6)压入，使得其使两个接口(17、18)彼此液压隔离。

Modulator block of anti-lock brake system for car

본 고안은 차량용 안티록 브레이크 시스템의 모듈레이터에 관한 것으로, 그 목적은 저압어큐뮤레이터와 고압어큐뮤레이터의 설치위치를 개선하여 모듈레이터블럭을 콤팩트화하며 제조원가를 절감하는 것이다. The present invention relates to a modulator of a vehicle anti-lock brake system, and its purpose is to improve the installation position of the low pressure accumulator and the high pressure accumulator, thereby compacting the modulator block and reducing the manufacturing cost. 본 고안에 따른 차량용 안티록 브레이크 시스템의 모듈레이터블럭(100)에는 모터(50)를 중심으로 한쌍의 제1,제2펌프(60A,60B)가 대칭되게 구성되는데, 제1,제2펌프(60A,60B)의 양측단과 연계되도록 고압어큐뮤레이터용 보어(71)가 가공되며, 제1,제2펌프(60A,60B)와 나란하도록 모듈레이터블럭(100)의 양측면에서 내측방향으로 저압어큐뮤레이터용 보어(41)가 가공되어 있다. In the modulator block 100 of the vehicle anti-lock brake system according to the present invention, a pair of first and second pumps 60A and 60B are symmetrically formed around the motor 50, and the first and second pumps 60A are symmetrically formed. The high pressure accumulator bore 71 is processed so as to be connected to both ends of the 60B, and the low pressure accumulator inwards from both sides of the modulator block 100 to be parallel to the first and second pumps 60A and 60B. The dragon bore 41 is processed. 이에 따라 모듈레이터블럭(100)에서 저압어큐뮤레이터용 보어(41)와 고압어큐뮤레이터용 보어(71)가 차지하는 공간이 현저하게 줄어들어 내부설계를 자유롭게 할 수 있으며, 이를 콤팩트하게 구성하며 제조원가를 절감할 수 있는 이점이 있다. Accordingly, the space occupied by the low-pressure accumulator bore 41 and the high-pressure accumulator bore 71 in the modulator block 100 can be significantly reduced, allowing the internal design to be freely configured. There is an advantage to this.

A high pressure accumlator of anti-lock brake system

본 발명은 안티록 브레이크 시스템의 고압어큐뮤레이터에 관한 것으로, 그 목적은 펌프 구동에 의해 고압어큐뮤레이터내로 유입되는 오일의 압력맥동을 보다 효율적으로 저감시키고자 하는 것이다. The present invention relates to a high pressure accumulator of an anti-lock brake system, and an object thereof is to more effectively reduce pressure pulsation of oil flowing into the high pressure accumulator by driving a pump. 본 발명에 따른 안티록 브레이크 시스템의 고압어큐뮤레이터(50)(60)(70)(80)에 의하면, 댐핑쳄버(51)(61)(71)(81) 내벽에 별도의 팽창공간(52)(62)(72)(82)을 형성함과 동시에 반경방향으로 확장 변형이 가능한 통상의 측면과 이의 하부를 폐쇄하는 밑면을 갖춘 컵형상의 팽창부재(55)(65)(75)(85)가 설치되어 있어서, 댐핑쳄버(51)(61)(71)(81)내로 유입되는 오일의 압력맥동이 팽창부재(55)(65)(75)(85), 즉 댐핑쳄버(51)(61)(71)(81)의 용적 가변으로 보다 용이하게 저감된다. 결국, 펌프(40) 구동시 발생되는 오일의 압력맥동이 보다 효율적으로 저감됨으로써, 안티록 브레이크 시스템의 작동소음이 줄어들고 신뢰성이 향상되는 이점이 있다. According to the high pressure accumulator 50, 60, 70 and 80 of the anti-lock brake system according to the present invention, a separate expansion space 52 is provided on the inner wall of the damping chambers 51, 61, 71 and 81. Cup-shaped inflation members 55, 65, 75, 85 with a common side that forms an extension (62), (72), (82) and a bottom that closes the lower portion thereof, which can be radially expanded and deformed. ), The pressure pulsation of the oil flowing into the damping chamber (51) (61) (71) (81) is expanded to the expansion members (55) (65) (75) (85), that is, the damping chamber (51) ( It is reduced more easily by the variable volume of 61 (71) (81). As a result, the pressure pulsation of the oil generated when driving the pump 40 is more efficiently reduced, thereby reducing the operating noise of the anti-lock brake system and improving reliability. 또한, 이러한 팽창부재(55)(65)(75)(85)를 통해 고압어큐뮤레이터의 용적을 줄이면서도 오일의 압력맥동을 효율적으로 저감시킬 수 있기 때문에, 모듈레이터블럭(31) 사이즈를 줄여 보다 콤팩트하게 구성할 수 있는 이점이 있다. In addition, since the expansion members 55, 65, 75, 85 can reduce the pressure pulsation of the oil while reducing the volume of the high-pressure accumulator, the size of the modulator block 31 can be reduced. The advantage is that it can be configured ...

Hydraulic break system

유압 브레이크 시스템이 개시된다. 본 발명의 실시 예에 따른 유압 브레이크 시스템은 브레이크 페달의 작동에 따라 제동 유압을 형성하는 마스터실린더, 마스터실린더의 제동 유압을 전달받아 제동력을 발휘하도록 차량의 전륜과 후륜에 각각 마련되는 휠 브레이크, 휠 브레이크의 입구측과 출구측에 각각 마련되어 제동유압의 흐름을 제어하는 솔레노이드밸브, 솔레노이드밸브가 작동되는 감압 제동 시 휠 브레이크측으로부터 토출된 오일이 일시 저장되는 저압어큐뮬레이터, 저압어큐뮬레이터에 저장된 오일을 가압하여 필요에 따라 휠 브레이크측 또는 마스터실린더측으로 토출시키는 펌프, 펌프의 토출구측에 마련된 오리피스를 구비하는 유압 브레이크 시스템에 있어서, 오리피스는 일측에 개구부를 갖는 하우징과, 개구부에 결합하여 하우징과 내부유로를 형성하는 캡과, 내부유로 상에 마련되어 펌프의 흡입 및 토출 동작에 따라 내부유로의 체적을 가변하는 댐퍼부를 포함한다. A hydraulic brake system is disclosed. A hydraulic brake system according to an embodiment of the present invention includes a master cylinder that forms a braking hydraulic pressure in accordance with an operation of a brake pedal, a wheel brake that is provided on a front wheel and a rear wheel of the vehicle so as to exert a braking force upon receiving braking hydraulic pressure of the master cylinder, A solenoid valve provided on the inlet side and the outlet side of the brake to control the flow of the braking hydraulic pressure, a low pressure accumulator in which the oil discharged from the wheel brake side is temporarily stored during the pressure reduction braking operation of the solenoid valve, A pump for discharging the oil to the wheel brake side or the master cylinder side as required, and an orifice provided at the discharge port side of the pump, wherein the orifice includes a housing having an opening at one side thereof and a housing And a cap And a damper portion provided on the furnace to vary the volume of the internal flow path in accordance with the suction and discharge operations of the pump.

Valve block for hydraulic brake system

유압 브레이크 시스템용 밸브블록이 개시된다. 본 실시예에 의한 유압 브레이크 시스템용 밸브블록은 다수의 NO밸브를 각각 수용하는 NO밸브 수용보어가 배치된 제1 밸브열; 다수의 NC밸브를 각각 수용하는 NC밸브 수용보어가 배치된 제2 밸브열; 양 측면에 상호 대칭되게 형성되어 제1 및 제2 밸브열 사이에 배치되고, 피스톤펌프를 수용하는 한 쌍의 펌프 수용보어; 양 측면에 상호 대칭되게 형성되어 제1 밸브열 상측에 배치되고, 제1 맥동 저감장치를 수용하는 한 쌍의 제1 댐핑보어; 상면에 상호 대칭되게 형성되어 제1 댐핑보어 상측에 배치되고, 제2 맥동 저감장치를 수용하는 한 쌍의 제2 댐핑보어; 하면에 상호 대칭되게 형성된 한 쌍의 저압 어큐뮬레이터 수용보어; 및 정면에 형성되어 한 쌍의 저압 어큐뮬레이터 수용보어에 근접하여 배치된 압력센서 수용보어;를 포함하되, 펌프 수용보어의 토출측과 제1 댐핑보어의 흡입측 및 제1 댐핑보어의 배출측과 제2 댐핑보어의 바닥면을 일직선으로 연결하여 유압을 이송하는 제1 유압라인;을 더 포함하여 제공될 수 있다. A valve block for a hydraulic brake system is disclosed. The valve block for a hydraulic brake system according to the present embodiment includes a first valve row in which an NO valve receiving bore for receiving a plurality of NO valves is disposed; A second valve row in which an NC valve receiving bore for receiving a plurality of NC valves is disposed; A pair of pump receiving bore which are formed symmetrically on both sides and arranged between the first and second valve rows, and which receive the piston pump; A pair of first damping bores that are symmetrically formed on both sides and are disposed above the first valve row and accommodate the first pulsation reducing device; A pair of second damping bores that are symmetrically formed on the upper surface and are disposed above the first damping bore to receive the second pulsation reducing device; A pair of low pressure accumulator receiving bore formed symmetrically on the lower surface; And a pressure sensor accommodation bore formed on the front and disposed close to the pair of low pressure accumulator accommodation bores, including, but not limited to, the discharge side of the pump accommodation bore and the suction side of the first damping bore and the discharge side and the second side of the first damping bore. A first hydraulic line for transferring hydraulic pressure by connecting the bottom surface of the damping bore in a straight line may be further provided.

Damping device and brake system using there of

본 발명은 펌프구동에 의해 발생하는 주기적인 압력 맥동을 저감시킬 수 있는 브레이크 시스템에 관한 것으로, 실린더 내부에 왕복가능하게 설치되고, 실린더 내부를 복수의 챔버로 구획하는 립씰 및 립씰의 왕복이동을 탄성지지하는 복수의 스프링을 포함하는 완충장치를 제공하며, 완충장치에 마련되는 피스톤 및 씰링부재를 하나의 립씰로 구현하기 때문에 완충장치의 부품수를 감소시키고 펌프 구동에 의해 발생하는 압력 맥동을 감쇄시켜 브레이크 제어 시 전체적인 작동소음을 줄여 제품의 신뢰성을 높일 수 있는 효과가 있다. The present invention relates to a brake system capable of reducing periodic pressure pulsation generated by pump driving, and more particularly, to a brake system capable of reducing cyclic pressure pulsation generated by driving a pump, and capable of reciprocating movement of a lip seal for dividing the inside of the cylinder into a plurality of chambers, And the piston and the sealing member provided in the shock absorber are realized as one lip seal, so that the number of components of the shock absorber is reduced and the pressure pulsation generated by the pump drive is attenuated It is possible to reduce the overall operating noise during the brake control, thereby enhancing the reliability of the product.

Hydraulic system with improved pulsation damping

본 발명은 수용체 (1) 를 포함하는 유압 시스템 (HCU) 에 관한 것으로, 상기 수용체는 전기유압 밸브 (2, 3), 적어도 하나의 유압 펌프 (4) 및 이 펌프 (4) 를 적어도 하나의 유압 부하에 연결하는 채널을 가지며, 상기 펌프 (4) 에 의한 압력 매체 전달의 결과 및/또는 상기 부하에 의한 압력 매체 인출의 결과로 맥동 상황이 발생하고, 특히 감쇠 챔버 (8), 오리피스 (9, 10) 와 같은 다수의 맥동 감쇠 수단을 포함하는 적어도 하나의 감쇠 유닛 (7) 이 제공된다. 본 발명의 목적은, 매우 다른 작동 상황에 대한 비용 효과적인 단일화된 해결 방안이 제공되고 또한 맥동 효과로 인한 안락성의 저하가 방지되도록 일반적인 유압 시스템을 개선하는 것이다. 이러한 목적은, 하나 이상의 감쇠 수단을 연결 또는 연결 해제시켜서 상기 감쇠 유닛 (7) 의 작용을 변화된 맥동 상황에 맞게 조정하기 위한 적어도 하나의 전환 수단을 상기 감쇠 유닛 (7) 이 포함함으로써 달성된다. The present invention relates to a hydraulic system (HCU) comprising a receiver (1) comprising at least one electrohydraulic valve (2, 3), at least one hydraulic pump (4) A pulsating situation arises as a result of the pressure medium delivery by the pump 4 and / or the withdrawal of the pressure medium by the load, and in particular the damping chamber 8, the orifices 9, At least one damping unit (7) comprising a plurality of pulsation damping means, It is an object of the present invention to provide a cost effective unified solution to very different operating conditions and to improve the general hydraulic system so that the degradation of comfort due to the pulsation effect is prevented. This object is achieved by the fact that the damping unit (7) comprises at least one switching means for connecting or disconnecting one or more damping means to adjust the action of the damping unit (7) to a changed pulse wave situation.

Brake system

본 발명의 브레이크 시스템이 개시된다. 본 발명의 일 측면에 따르면, 펌프로부터 토출되는 브레이크 오일의 압력맥동을 감쇠시키는 맥동 저감 장치를 구비하는 브레이크 시스템에 있어서, 상기 맥동 저감 장치는, 브레이크 오일이 유입되는 인포트 및 브레이크 오일이 배출되는 아웃포트와 연통하는 보어에 삽입되며 내부에 중공부가 형성된 제1 댐핑부재; 상기 중공부에 삽입되며 상기 제1 댐핑부재의 가압에 따라 탄성변형는 제2 댐핑부재; 및 상기 제1 댐핑부재의 중공부와 결합되며 상기 보어를 폐쇄시키는 폐쇄부재;를 포함하는 브레이크 시스템이 제공될 수 있다.

Method for operating a brake-boosted brake system of a vehicle and control device for a brake-boosted brake system of a vehicle

Die Erfindung betrifft ein Verfahren zum Betreiben eines bremskraftverstärkten Bremssystems eines Fahrzeugs mit Überprüfen eines Betriebsmodus des bremskraftverstärkten Bremssystems hinsichtlich eines Übereinstimmens eines durch das bremskraftverstärkte Bremssystem auf mindestens ein Rad des Fahrzeugs ausgeübten Gesamtbremsmoments mit einem vorgegebenen Soll-Gesamtbremsmoment und/oder hinsichtlich einer Verschiebung eines Bremsmediumvolumens des bremskraftverstärkten Bremssystems in ein Kraft-Druck-Umwandungselement (22) des bremskraftverstärkten Bremssystems, sofern eine Bremsmomentdifferenz zwischen dem ausgeübten Gesamtbremsmoment und dem vorgegebenen Soll-Gesamtbremsmoment größer als eine vorgegebene Bezugsdifferenz ist und/oder das in das Kraft-Druck-Umwandlungselement (22) verschobene Bremsmediumvolumen größer als ein vorgegebenes Bezugsvolumen ist, Festlegen einer Soll-Unterstützungskraftänderung bezüglich einer von einem Bremskraftverstärker (14) des bremskraftverstärkten Bremssystems bereitgestellten Unterstützungskraft (Fu) unter Berücksichtigung der Bremsmomentdifferenz und/oder des verschobenen Bremsmediumvolumens, und Ausgeben der Soll-Unterstützungskraftänderung an den Bremskraftverstärker (14). Des Weiteren betrifft die Erfindung eine entsprechende Steuervorrichtung für ein bremskraftverstärktes Bremssystem eines Fahrzeugs. The invention relates to a method for operating a brake-boosted brake system of a vehicle with checking an operating mode of the brake-boosted brake system with respect to a total applied by the brake-boosted brake system to at least one wheel of the vehicle total braking torque with a predetermined nominal total braking torque and / or with respect to a displacement of a brake fluid volume of the brake power boosted braking system in a force-pressure conversion element (22) of the brake-boosted brake system, if a brake torque difference between the applied total braking torque and the predetermined target total braking torque is ...

Method for operating a brake boosted brake system of a vehicle and control device for a brake boosted brake system of a vehicle

The invention relates to a method for operating a brake boosted brake system of a vehicle, comprising the monitoring of a mode of operation of the brake boosted brake system with regard to agreement of a total braking torque applied to at least one wheel of the vehicle by the brake boosted brake system with a specified target total braking torque, and/or with regard to a displacement of a brake medium volume of the brake boosted brake system to a force/pressure conversion element (22) of the brake boosted brake system, if a braking torque difference between the applied total braking torque and the specified target total braking torque is greater than a specified reference difference, and/or if the brake medium volume displaced to the force/pressure conversion element (22) is larger than a specified reference volume; further comprising the defining of a target boosting force change with regard to a boosting force (Fu) provided by a brake booster (14) of the brake boosted brake system, taking into account the braking torque difference and/or the displaced brake medium volume, and outputting the target boosting force change to the brake booster (14). The invention further relates to a corresponding control device for a brake boosted brake system of a vehicle.

A high pressure accumlator of electronic control brake system

본 발명은 전자제어식 브레이크 시스템의 고압어큐뮬레이터에 관한 것으로, 그 목적은 펌프 구동에 의해 고압어큐뮬레이터로 유입되는 오일의 압력맥동을 보다 효율적으로 저감시키고자 하는 것이다. The present invention relates to a high pressure accumulator of an electronically controlled brake system, and an object thereof is to more effectively reduce pressure pulsation of oil flowing into the high pressure accumulator by driving a pump. 이를 위해 본 발명에 따른 전자제어식 브레이크 시스템의 고압어큐뮬레이터(50)에 의하면, 댐핑쳄버(51)내에 탄성 변형되면서 체적 변형이 가능한 구(球)형상의 댐핑부재(60)가 설치되어 있어서, 댐핑쳄버(51)내로 유입되는 오일의 압력맥동이 댐핑부재(60), 즉 댐핑쳄버(51)의 용적 가변으로 보다 월등하게 저감된다. 결국, 펌프(40) 구동 시 발생되는 오일 압력맥동이 보다 효율적이면서 완전하게 저감됨으로써, 전자제어식 브레이크 시스템의 작동소음이 줄어들고 제품 신뢰성이 향상되는 작용효과가 있다. 또한, 댐핑부재(60)를 통해 고압어큐뮬레이터(50)의 용적을 줄이면서도 오일 압력맥동을 효율적으로 저감시킬 수 있기 때문에, 유압블럭(31)을 줄여 보다 콤팩트하게 구성할 수 있는 이점이 있다. To this end, according to the high-pressure accumulator 50 of the electronically controlled brake system according to the present invention, the damping chamber (51) is provided with a spherical damping member (60) capable of volume deformation while being elastically deformed in the damping chamber (51). The pressure pulsation of the oil flowing into the 51 is further reduced by the variable volume of the damping member 60, that is, the damping chamber 51. As a result, the oil pressure pulsation generated when driving the pump 40 is more efficiently and completely reduced, thereby reducing the operation noise of the electronically controlled brake system and improving product reliability. In addition, since the oil pressure pulsation can be efficiently reduced while reducing the volume of the high-pressure accumulator 50 through the damping member 60, the hydraulic block 31 can be reduced in size and can be configured more compactly.

High pressure accumlator of ABS

본 발명은 안티록 브레이크 시스템의 고압어큐뮤레이터에 관한 것으로, 그 목적은 설치 위치 및 구성부품을 개선하여 조립을 용이하게 하며 모듈레이터블럭을 보다 콤팩트하게 구성할 수 있도록 하는 것이다. The present invention relates to a high pressure accumulator of an anti-lock brake system, the object of which is to improve the installation position and components to facilitate assembly and to make the modulator block more compact. 본 발명에 따른 안티록 브레이크 시스템의 고압어큐뮤레이터(50)에 의하면, ABS 증압작동 및 유지작동 시 펌프(40)에 의해 가압되는 오일의 압력맥동이 저감되도록 밸브(53)가 내장된 케이싱(52)과 커버(54)를 구비하여 펌프(40)의 압축실(41) 단부에 직접 연통되게 동축상으로 장착된다. 이에 따라 모듈레이터블럭(31)의 구성이 단순화되어 안티록 브레이크 시스템의 전체적인 조립 작업성 향상되고 제조비용이 절감됨은 물론이며, 모듈레이터블럭(31)의 사이즈를 줄여 보다 콤팩트하게 구성할 수 있는 이점이 있다. According to the high-pressure accumulator 50 of the anti-lock brake system according to the present invention, the casing in which the valve 53 is built so as to reduce the pressure pulsation of the oil pressurized by the pump 40 during the ABS boosting operation and maintenance operation ( 52 and a cover 54 are mounted coaxially in direct communication with the end of the compression chamber 41 of the pump 40. Accordingly, the configuration of the modulator block 31 is simplified to improve the overall assembly workability of the anti-lock brake system and to reduce manufacturing costs, and to reduce the size of the modulator block 31, thereby providing a more compact configuration. .

Pulsation damper of a vehicle brake system

Pulsationsdämpfer (10) einer Fahrzeugbremsanlage mit einem Anschluss (14) zum Zuführen und zum Abführen von Fluid in einen Dämpferraum (12), der Anschluss (14) segmentiert gestaltet ist, wobei ein erstes Segment (34) des Anschlusses (14) eine Zuführleitung und ein zweites Segment (36) des Anschlusses (14) eine Abführleitung bildet und die beiden Segmente (34, 36) mittels einer Trennwand (32) voneinander abgegrenzt sind, dadurch gekennzeichnet, dass der Anschluss (14) mit mehr als zwei Segmenten (34, 36) gestaltet ist, von denen mindestens zwei Segmente (34, 36) zusammen die Zuführleitung oder die Abführleitung bilden. Pulsation damper (10) of a vehicle brake system with a connection (14) for supplying and discharging fluid into a damper chamber (12), the connection (14) being designed in segments, with a first segment (34) of the connection (14) having a supply line and a second segment (36) of the connection (14) forms a discharge line and the two segments (34, 36) are separated from one another by means of a partition (32), characterized in that the connection (14) has more than two segments (34, 36), of which at least two segments (34, 36) together form the supply line or the discharge line.

Slip-controlled hydraulic vehicle brake system and combination of a pressure vibration damper and a check valve for such vehicle brake system

본 발명은 압력측에 압력 진동 댐퍼(14)와 스로틀(15)이 연결되는 유압 펌프(9)를 포함하는 슬립 제어 방식의 유압식 차량 브레이크 시스템(1)에 관한 것이다. 본 발명은 압력 진동 댐퍼(14)의 방향으로 차단하는 체크 밸브(16)를 제안한다. 이로 인해 슬립 제어 없이 메인 브레이크 실린더(2)로 브레이크 작동시 압력 진동 댐퍼(14)의 탄성이 제공되지 않는다.

Electric brake system

본 발명의 전자식 브레이크 시스템이 개시된다. 본 발명의 일 측면에 따르면, 오일이 저장되는 리저버; 상기 리저버와 연결되어 브레이크 페달의 답력에 따라 액압을 발생시키는 마스터실린더; 상기 브레이크 페달의 답력에 따른 반력을 제공하도록 상기 마스터실린더와 연결되어 오일이 수용되는 시뮬레이션 챔버 및 상기 시뮬레이션 챔버와 상기 리저버를 연결하는 유로에 마련되는 시뮬레이터 밸브를 구비하는 시뮬레이션장치; 상기 브레이크 페달의 변위를 감지하는 페달변위센서의 전기적 신호에 의해 작동하며, 상기 리저버와 연결되어 오일이 수용되는 액압챔버를 가압하여 발생하는 액압을 휠 실린더로 전달하는 액압공급장치; 및 상기 시뮬레이션 챔버와 상기 액압챔버를 연결하는 유로에 마련되는 댐핑부재;를 포함하고, 상기 댐핑부재는 ABS 모드 시 발생되는 압력맥동을 상기 시뮬레이션장치를 통하여 상기 브레이크 페달로 전달하는 전자식 브레이크 시스템이 제공될 수 있다. An electronic brake system of the present invention is disclosed. According to one aspect of the present invention, a reservoir in which oil is stored; a master cylinder connected to the reservoir to generate hydraulic pressure according to the effort of the brake pedal; a simulation device having a simulation chamber connected to the master cylinder to receive oil and a simulator valve provided in a flow path connecting the simulation chamber and the reservoir to provide a reaction force according to the effort of the brake pedal; a hydraulic pressure supply device that is operated by an electrical signal from a pedal displacement sensor that detects the displacement of the brake pedal and that is connected to the reservoir and transmits hydraulic pressure generated by pressurizing a hydraulic pressure chamber accommodating oil to a wheel cylinder; and a damping member provided in a passage connecting the simulation chamber and the hydraulic pressure chamber, wherein the damping member transfers pressure pulsations generated in an ABS mode to the brake pedal through the simulation device. An electronic brake system is provided It can be.

Pressure pulsation damper for motor vehicle braking system

本发明涉及一种用于车辆制动系统的压力脉动阻尼器(20)，其特征在于，该压力脉动阻尼器被设计成能够单独安装在车辆制动系统上的结构单元。

Noise reduction device of anti-lock brake system

본 발명은 안티록 브레이크 시스템의 소음감쇠장치에 관한 것으로, 그 목적은 펌프 구동으로 발생되는 압력맥동을 보다 효율적으로 감쇠시키는 것이다. 본 발명에 따른 안티록 브레이크 시스템의 소음감쇠장치에 의하면, 모듈레이터블럭(70)에 가공된 인포트(71)에 하우징(81)과 댐핑부재(83) 및 커플러(82)로 이루어진 소음감쇠장치(80)를 간단하게 설치하여 펌프(51) 구동 시 발생되어 마스터실린더(12)측으로 전달되는 오일의 압력맥동을 보다 효율적으로 감쇠시킴으로써, 안티록 브레이크 시스템의 작동소음을 저감하고 신뢰성을 향상시킬 수 있는 이점이 있다.

Brake device and brake system

Electric brake system

전자식 브레이크 시스템이 개시된다. 본 발명의 실시 예에 따른 전자식 브레이크 시스템은 브레이크 페달의 변위에 대응하는 전기적 신호에 의해 작동하고, 제1 압력챔버와 제2 압력챔버를 구비하는 액압 공급장치; 각각 두 개의 휠 실린더에 각각 연결되도록 마련되는 제1 및 제2 유압서킷; 제4 제어밸브가 마련되고, 상기 제1 압력챔버와 상기 제1 유압서킷을 연결하는 제2 유압서킷; 제2 제어밸브가 마련되고, 상기 제1 압력챔버와 상기 제2 유압서킷을 연결하는 제3 유압유로; 제5 제어밸브가 마련되고, 상기 제2 압력챔버와 상기 제1 유압서킷을 연결하는 제5 유압유로; 제1 제어밸브가 마련되고, 상기 제2 압력챔버와 상기 제2 유압서킷을 연결하는 제6 유압유로; 및 상기 제2 제어밸브에 병렬로 제3 제어밸브가 마련되고, 상기 제1 압력챔버와 상기 제2 유압서킷을 연결하는 제7 유압유로을 포함한다. An electronic brake system is disclosed. An electronic brake system according to an embodiment of the present invention is operated by an electrical signal corresponding to the displacement of a brake pedal, the hydraulic pressure supply device having a first pressure chamber and a second pressure chamber; first and second hydraulic circuits respectively provided to be respectively connected to the two wheel cylinders; a second hydraulic circuit having a fourth control valve and connecting the first pressure chamber and the first hydraulic circuit; a third hydraulic flow passage having a second control valve and connecting the first pressure chamber and the second hydraulic circuit; a fifth hydraulic flow passage having a fifth control valve and connecting the second pressure chamber and the first hydraulic circuit; a sixth hydraulic flow passage having a first control valve and connecting the second pressure chamber and the second hydraulic circuit; and a seventh hydraulic passage through which a third control valve is provided in parallel to the second control valve and connects the first pressure chamber and the second hydraulic circuit.

Electro-hydraulic brake device for reducing drag of brake in vehicle

본 발명은 차량의 전자식 브레이크 장치에 관한 것으로서, 특히 전자식 브레이크 시스템에서 페달을 해제한 후 제동력을 발생시켜주는 피스톤이 완전히 제자리로 리턴되지 않아 발생되는 드래그 문제를 해결함으로써 차량의 연비향상을 도모할 수 있는 드래그 저감을 위한 전자식 브레이크 장치에 관한 것이다. 이를 위한 본 발명의 전자식 브레이크 장치는, 오일이 저장되는 리저버와; 상기 리저버로부터 오일이 공급되는 실린더와; 상기 실린더 내부에 진퇴가능하게 설치되는 피스톤과; 상기 실린더 내에 설치되어 상기 피스톤에 탄성 반력을 제공하는 스프링과; 페달변위센서의 전기적 신호에 따라 상기 피스톤 구동을 위한 회전력을 발생시키는 모터와; 상기 모터의 회전운동을 직선운동으로 변환시켜 상기 피스톤을 구동시키는 볼스크류와; 상기 모터를 제어하는 전자제어유닛(ECU);을 포함하며, 상기 리저버와 상기 실린더 사이를 연결하는 유압라인 상에는 정상상태에서는 닫혀있다가 상기 전자제어유닛(ECU)에서 개방신호가 인가될 경우 개방되는 평시 폐쇄형(Normal Cloesd type) 솔레노이드 밸브가 설치된 것을 특징으로 한다.

Hydraulic break system

유압 브레이크 시스템이 개시된다. 본 발명의 실시 예에 따른 유압 브레이크 시스템은 브레이크 페달의 작동에 따라 제동 유압을 형성하는 마스터실린더, 마스터실린더의 제동 유압을 전달받아 제동력을 발휘하도록 차량의 전륜과 후륜에 각각 마련되는 휠 브레이크, 휠 브레이크의 입구측과 출구측에 각각 마련되어 제동유압의 흐름을 제어하는 솔레노이드밸브, 솔레노이드밸브가 작동되는 감압 제동 시 휠 브레이크측으로부터 토출된 오일이 일시 저장되는 저압어큐뮬레이터, 저압어큐뮬레이터에 저장된 오일을 가압하여 필요에 따라 휠 브레이크측 또는 마스터실린더측으로 토출시키는 펌프, 펌프의 토출구측 유로에 마련된 오리피스를 구비하는 유압 브레이크 시스템에 있어서, 오리피스는 유로를 통과하는 유체의 유압에 대응하여 유출구의 면적을 가변하는 유량가변부와, 유출구의 개구 면적 가변을 제어하기 위한 개도조절부를 포함한다.

Hydraulic brake system

本发明公开了一种液压制动系统。液压制动系统包括：阻尼装置，其构造为衰减根据泵的驱动所排放的制动油的压力脉动，其中，阻尼装置包括：套筒，其固定至镗孔，镗孔连接至泵的排放端并且具有敞开的一侧；阻尼活塞，其可滑动地安装在套筒的内部；以及弹性构件，其设置在套筒的内部并且构造为弹性地支撑阻尼活塞；并且其中，具有沿制动油流动的方向变化的宽度的槽缝形成在套筒的内周表面，使得可变孔口形成在阻尼活塞和套筒之间。

Vehicle's BTCS control circuit

본 발명은 차량의 브레이크 구동력 제어시스템(BTCS; Break traction control system)에 사용되는 유압제어 회로에 관한 것으로서, 보다 구체적으로는 종래에 휠브레이크의 환류라인에 설치되는 저압 어큐뮬레이터(LPA)를 대신하여 마스터실린더의 저장탱크와 연결되는 흡입라인이 설치된 차량의 브레이크 구동력 제어시스템의 제어회로에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic control circuit used in a brake traction control system (BTCS) of a vehicle, and more particularly, to a master instead of a low pressure accumulator (LPA) installed in a reflux line of a wheel brake. The control circuit of the brake drive force control system of a vehicle provided with a suction line connected to the storage tank of the cylinder.

Hydraulic break system

펌프구동에 의해 발생하는 주기적인 압력 맥동을 저감시킬 수 있는 유압 브레이크 시스템이 제공된다. 본 발명에 따른 유압 브레이크 시스템은 브레이크 페달의 작동에 따라 제동 유압을 형성하는 마스터실린더와, 마스터실린더의 제동 유압을 전달받아 제동력을 발휘하도록 차량의 전륜(FR,FL)과 후륜(RR,RL)에 각각 마련되는 휠 브레이크와, 휠 브레이크의 입구측과 출구측에 각각 마련되어 제동 유압의 흐름을 제어하는 전자밸브와, 전자밸브 작동 시 휠 브레이크측으로부터 토출된 오일이 일시 저장되는 저압어큐뮬레이터, 저압어큐뮬레이터에 저장된 오일을 가압시켜 휠 브레이크 측 또는 마스터실린더 측으로 토출시키는 펌프와, 펌프의 토출구 측에 마련된 오리피스를 구비하는 유압 브레이크 시스템에 있어서, 펌프의 토출구측과 오리피스 사이에 댐퍼유닛이 마련됨으로써 펌프 구동에 의해 발생하는 압력 맥동을 감쇄시켜 유압회로 간 압력이 평형을 이루도록 제어하여 유압 브레이크 시스템을 제어할 때 전체적인 작동소음을 줄여 운전자의 승차감을 높일 수 있다. A hydraulic brake system is provided that can reduce periodic pressure pulsations caused by pumping. Hydraulic brake system according to the present invention, the front cylinder (FR, FL) and the rear wheel (RR, RL) of the vehicle to exert braking force by receiving the braking hydraulic pressure of the master cylinder and the master cylinder to form a braking hydraulic pressure in accordance with the operation of the brake pedal Wheel brakes respectively provided at the wheel brakes, solenoid valves respectively provided at the inlet and outlet sides of the wheel brakes to control the flow of braking hydraulic pressure, and a low pressure accumulator and a low pressure accumulator in which oil discharged from the wheel brake side is temporarily stored when the solenoid valve is operated. In a hydraulic brake system having a pump for pressurizing oil stored in the pump to be discharged to the wheel brake side or the master cylinder side, and an orifice provided at the discharge port side of the pump, a damper unit is provided between the discharge port side and the orifice of the pump to drive the pump. Pressure pulsation caused by Control of the hydraulic brake system can reduce the overall operating noise and increase the driver's ride comfort.

"BRAKE CONTROL APPARATUS AND METHOD FOR CONTROLLING THE SAME"

L'invention concerne un appareil de commande de frein.Dans un appareil de commande de frein avec des cylindres de frein sur roue montés sur les roues de roulement (FL-RR) respectives, une pompe (P) est prévue pour fournir une pression de fluide à chacun des cylindres de frein sur roue par la rotation normale de la pompe. Une unité de commande (300, 100-200) est prévue pour commander le mouvement de rotation de la pompe afin de rapprocher une pression de cylindre de roue actuelle (Pfl-Prr) de chacun des cylindres de frein sur roue d'une pression de cylindre de roue cible. Un dispositif de suppression de la rotation inverse de la pompe (P) est également réalisé qui supprime une rotation inverse de la pompe seulement lorsque la rotation inverse de la pompe (P) est détectée.L'invention est applicable en particulier dans le domaine de la construction automobile. A brake control apparatus.In a brake control apparatus with wheel brake cylinders mounted on the respective running wheels (FL-RR), a pump (P) is provided to provide a brake pressure. fluid to each of the wheel brake cylinders by the normal rotation of the pump. A control unit (300, 100-200) is provided for controlling the rotational movement of the pump to bring a current wheel cylinder pressure (Pfl-Prr) closer to each of the wheel brake cylinders by a pressure of target wheel cylinder. A device for suppressing the inverse rotation of the pump (P) is also provided which suppresses a reverse rotation of the pump only when the reverse rotation of the pump (P) is detected. The invention is applicable in particular in the field of car manufacturing.

DEVICE FOR AVOIDING THE LOCKING OR SKATING OF A VEHICLE WHEEL DURING BRAKING

BRAKING SYSTEM WITH BRAKE AND TRACTION SLIDING REGULATOR

Il est proposé un système de freinage à régulation des glissements de freinage et de traction dans lequel le sens de refoulement de la pompe P est réversible. Ceci est avantageux en ce que sans aucune valve supplémentaire, le système de freinage peut être utilisé à la fois pour réguler un glissement de freinage et pour réguler un glissement de traction. L'inversion du sens de refoulement de la pompe P peut être provoqué de manière simple en changeant le sens de rotation du dispositif d'entraînement M. A braking system is proposed which regulates the braking and traction slips in which the delivery direction of the pump P is reversible. This is advantageous in that without any additional valve, the brake system can be used both to regulate brake slip and to regulate traction slip. The reversal of the delivery direction of the pump P can be caused in a simple way by changing the direction of rotation of the drive device M.

BRAKING SYSTEM WITH BRAKE AND TRACTION SLIDING REGULATOR

RECIPROCATING HYDRAULIC PUMP.

RADIAL PISTON HYDRAULIC PUMP, ESPECIALLY FOR A BRAKING SYSTEM FOR A MOTOR VEHICLE.

Cette pompe comprend au moins un piston (5) coulissant dans un fourreau fixe (8) solidaire d'un corps de valve cylindrique creux (9), une valve d'aspiration (8a, 10, 18) et une valve de refoulement (11, 19, 20) étant disposées l'une derrière l'autre suivant l'axe longitudinal de la pompe pour ouvrir et fermer une chambre de pression 17), la valve d'aspiration ayant son siège (8a) disposé sur la tête du piston, la pompe comprenant un orifice d'entrée (12) et un orifice de sortie (13) pour le liquide hydraulique et un boîtier de pompe (1), la chambre de pression (17) étant réalisée à l'intérieur du corps de valve (9) et le siège (19) de la valve de refoulement étant venu de matière sur la surfaire frontale, située du côté de la tête, du corps de valve (9). Suivant l'invention, sur sa face intérieure tournée vers le piston (6), le fourreau (8) comporte à l'une et à l'autre extrémités une bague d'étanchéité (6a, 6b). This pump comprises at least one piston (5) sliding in a fixed sleeve (8) integral with a hollow cylindrical valve body (9), a suction valve (8a, 10, 18) and a discharge valve (11 , 19, 20) being arranged one behind the other along the longitudinal axis of the pump to open and close a pressure chamber 17), the suction valve having its seat (8a) arranged on the head of the piston , the pump comprising an inlet (12) and an outlet (13) for hydraulic fluid and a pump housing (1), the pressure chamber (17) being formed inside the valve body (9) and the seat (19) of the delivery valve being integral on the front surface, located on the side of the head, of the valve body (9). According to the invention, on its inner face facing the piston (6), the sleeve (8) has at one end and at the other a sealing ring (6a, 6b).

METHOD FOR CONTROLLING A HYDRAULIC GROUP PRESSURE SUPPLY UNIT AND GROUP PRODUCED THEREBY

Procédé et dispositif de commande d'une unité d'alimentation en pression (10) d'un groupe hydraulique (1) ayant un moyen d'entraînement (12) et une unité de pompe (14). Le moyen d'entraînement (12) est commandé par les signaux pour appliquer une consigne de pression et/ou de débit. Il comporte également un groupe hydraulique (1), un produit programme d'ordinateur et un programme d'ordinateur pour la mise en œuvre du procédé. Selon l'invention, on saisit des grandeurs physiques et on les utilise pour déterminer des émissions d'oscillations et/ou de pulsations liées au fonctionnement. On modifie les signaux de commande pour que pratiquement les émissions d'oscillations et/ ou de pulsations de pression liées au fonctionnement, ne passent pas en-dessous d'un seuil prédéfini. Method and device for controlling a pressure supply unit (10) of a hydraulic unit (1) having a drive means (12) and a pump unit (14). The drive means (12) is controlled by the signals to apply a pressure and / or flow rate setpoint. It also includes a hydraulic unit (1), a computer program product and a computer program for implementing the method. According to the invention, physical quantities are captured and used to determine emissions of oscillations and / or pulsations linked to operation. The control signals are modified so that practically the emissions of oscillations and / or pressure pulsations linked to operation do not pass below a predefined threshold.

Hydraulic vehicle brake fluid pressure damper

The flexible tubular damper (32) encloses the main damper body (12) as linked to the brake fluid channel (18,20) so the damping chamber (30) lies between the tube (32) and body (12). The body is of prism or cylinder shape and the brake fluid channel has two separate sections (18,20) only communicating through the damping chamber. The tube is ringed by a main support (34) having gas-filled spaces (44,46) between this and the tube so that the respective spaces enclose the damper tube. The two spaces connect to the outside air through an air passage (50) in the support so the tube necessarily seals the passage. The outside thread (52) of the main body (12) stands coaxially to both the tube and support (34) to allow the body to be screwed into component (16).

HYDRAULIC PUMP WITH ALTERNATIVE CYCLE.

L'invention concerne une pompe hydraulique comportant au moins un piston (2) à cycle alternatif coulissant dans un cylindre fixe (4), cette pompe comportant en outre un clapet anti-retour d'aspiration (12) disposé entre une source de fluide sous basse pression et une chambre de travail (10) définie dans le cylindre (4), et un premier clapet anti-retour (16) de refoulement disposé entre la chambre de travail (10) et une chambre de sortie (14) du fluide sous haute pression. Selon l'invention, un conduit (24) relie la chambre de sortie (14) et la chambre de travail (10) le piston (2) laissant ouvert ce conduit (24) en fin de période d'aspiration et en début de période du refoulement et le fermant pendant le reste du cycle. The invention relates to a hydraulic pump comprising at least one reciprocating cycle piston (2) sliding in a fixed cylinder (4), this pump further comprising a suction non-return valve (12) arranged between a source of fluid under low pressure and a working chamber (10) defined in the cylinder (4), and a first discharge non-return valve (16) disposed between the working chamber (10) and an outlet chamber (14) of the fluid under high pressure. According to the invention, a duct (24) connects the outlet chamber (14) and the working chamber (10), the piston (2) leaving this duct (24) open at the end of the suction period and at the start of the period. discharge and closing it for the rest of the cycle.

Liquid pressure control apparatus for anti-skid device

Damper chamber for brake systems - has pressure chamber containing two=part insert with additional pressure chamber connected to main chamber.

The pressure chamber contains an insert (3) consisting of a cover part (4) and a holding part (5) which has an additional pressure chamber (15) which is connected to the main pressure chamber (2). The cover part can be seated in the damper chamber (1) whilst the holding part projects out from same. A sleeve (12) pushed onto the holder part (5) engages with a ring collar (11) in a ring channel (10) between the damper chamber and insert. This sleeve can be fixed on the holder by flanging (22). A pivot stud (23) with ideal break point (24) can be used to hold the insert during flanging. USE/ADVANTAGE - Damper chamber for brake systems with drive slip or anti-lock control is of simplified design with few extra elements.

System and method of retaining a component in a hydraulic control unit housing

A system, device, and method for retaining a component within a hydraulic control unit of a vehicular braking system. The system comprises a housing and a component wherein the housing includes an angled lead in formed in an opening of the housing and an outer retaining portion. The component includes an inner portion that is angled to contact the angled lead in at a single point. The component includes an outer portion to contact the retaining portion of the housing when deformed. A deformed portion of the housing retains a device, such as the component.

DAMPING ELEMENT OF PULSATIONS OF A FLUID PUMP AND PUMP THUS EQUIPPED

Élément amortisseur de pulsations pour une pompe à fluide comportant un élément élastique de ressort (20). L'élément comprend un pot amortisseur (10) ayant un corps de base (14) en forme de soufflet avec des espaces intermédiaires (14.1) remplis d'une masse de remplissage élastique (20) assurant la fonction de l'élément de ressort pour dans le cas de mouvement produit par une pulsation de pression sur le corps de base (14), le volume d'air (18) emprisonné soit comprimé pour absorber les pulsations de pression. Pulsating damping element for a fluid pump comprising a resilient spring element (20). The element comprises a damper pot (10) having a bellows-shaped base body (14) with intermediate spaces (14.1) filled with an elastic filling mass (20) providing the function of the spring element for in the case of movement produced by a pressure pulse on the base body (14), the entrapped air volume (18) is compressed to absorb the pressure pulsations.

Pulsation damping device of hydraulic brake system

Disclosed is a pulsation damping device of a hydraulic brake system including a first damper having a first damping chamber whose volume is varied by the hydraulic pressure of the brake oil, and a second damper having a second damping chamber whose volume is varied by the hydraulic pressure of the brake oil, wherein the volume change rate of the first damping chamber relative to the hydraulic pressure of the brake oil is provided to be larger than the volume change rate of the second damping chamber, and the hydraulic pressure of the corresponding brake oil in the first damping chamber when reaching the maximum variable volume is provided to be smaller than the hydraulic pressure of the corresponding brake oil in the second damping chamber when reaching the maximum variable volume.

Pressure damping device for brake system

본 발명은 제동시 휠 실린더에 공급되는 브레이크 액압을 증가시키도록 압력 맥동을 최소화하는 브레이크 시스템의 압력 완충장치에 관한 것이다. 본 발명에 따른 브레이크 시스템의 압력 완충장치는, 마스터실린더의 제1 포트에서 발생된 액압 및 제1 펌프로부터 토출되는 액압을 적어도 하나의 제1 차륜으로 전달되는 것을 제어하기 위한 제1 유압회로와, 마스터실린더의 제2 포트에서 발생된 액압 및 제2 펌프로부터 토출되는 액압을 적어도 하나의 제2 차륜으로 전달되는 것을 제어하기 위한 제2 유압회로가 형성된 유압블록을 갖춘 브레이크 시스템에 설치되고, 상기 유압블록에는 상기 마스터실린더와 각 펌프의 토출구를 각각 연결하며 오리피스가 형성된 제1 및 제2 메인유로 사이에 각 메인유로와 연통하도록 보어가 형성되고, 상기 보어에 마련되어 각 펌프로부터 토출되는 액압의 압력에 따라 체적이 변화하는 압력 완충부를 구비한다. The present invention relates to a pressure buffer of a brake system that minimizes pressure pulsation to increase the brake hydraulic pressure supplied to the wheel cylinder during braking. The pressure buffer of the brake system according to the present invention includes a first hydraulic circuit for controlling the hydraulic pressure generated at the first port of the master cylinder and the hydraulic pressure discharged from the first pump to be transmitted to at least one first wheel; Installed in a brake system having a hydraulic block having a second hydraulic circuit for controlling the hydraulic pressure generated at the second port of the master cylinder and the hydraulic pressure discharged from the second pump to be transmitted to at least one second wheel, In the block, a bore is formed between the master cylinder and the discharge port of each pump and communicates with each main flow path between the first and second main flow paths having orifices formed therein. And a pressure buffer portion whose volume changes accordingly.

Pulsation dampening capsule

A pulsation damping capsule for connection to the pressure side of a piston pump having a metal membrane housing that is assembled from two membrane shells joined together in a hermetically sealed manner. The metal membrane housing separates an internal space from a surrounding pressure medium. The membrane shells are connected along a circumferential seam such that the pulsation damping capsule can compress and expand in a resilient-elastic manner as an energy convertor when subjected to external pressure as a result of pressure medium pulses. A reshapeable mass is arranged in the internal space and when the membrane shells are in the resilient-elastically compressed state, the mass completely fills an intermediate space that remains between the two membrane shells, so that the mass is precisely matched to the internal contour of the reshaped membrane shells while avoiding the formation of hollow spaces.

A pump for electronic control brake system

본 발명은 모듈레이터블록에 형성되며 흡입포트 및 토출포트와 연통된 보어와, 상기 보어에 왕복 가능하게 설치되며 내부에 흡입유로가 형성된 피스톤과, 상기 피스톤의 위치에 따라 상기 흡입유로의 출구측을 개폐하는 흡입밸브부와, 상기 보어의 일측에 구비되어 상기 흡입밸브부와 상반되게 작동하는 배출밸브부를 포함하는 전자제어식 브레이크 시스템용 펌프에 있어서, 상기 배출밸브부는 밸브시트와, 상기 밸브시트의 주위를 감싸는 슬리브와, 상기 슬리브와 상기 밸브시트사이에 마련되어 상기 밸브시트의 유로를 개폐하는 토출볼과, 상기 슬리브의 후측에 마련되어 상기 보어를 외부와 차단시키는 밸브캡을 포함하되, 상기 슬리브는 상기 토출볼의 개폐에 의해 토출되는 유체를 외부로 안내하기 위한 토출홈을 포함하여 토출유로를 형성함으로써 토출밸브부측에서 유동하는 유체의 맥동을 저감하여 펌프의 작동소음을 줄일 수 있는 효과가 있다. The present invention is formed in the modulator block and the bore communicating with the suction port and the discharge port, the reciprocating installed in the bore, the suction passage is formed therein, and opening and closing the outlet side of the suction passage in accordance with the position of the piston A pump for an electronically controlled brake system comprising a suction valve portion and a discharge valve portion provided on one side of the bore and operating opposite to the suction valve portion, wherein the discharge valve portion is formed around the valve seat and the valve seat. And a sleeve surrounding the sleeve, a discharge ball provided between the sleeve and the valve seat to open and close the flow path of the valve seat, and a valve cap provided at a rear side of the sleeve to block the bore from the outside, wherein the sleeve includes the discharge ball. Forming a discharge passage including a discharge groove for guiding the fluid discharged by the opening and closing of the device to the outside; There is written that can reduce the operating noise of the pump by reducing the pulsation of the fluid flowing from the discharge valve side effects.

Hydraulic control unit with fluid compensator to accommodate travel of master cylinder piston

A fluid compensator (100, 225, 325) is provided in a hydraulic control unit (18, 218, 318) of vehicular brake system (10, 200). The fluid compensator permits additional displacement of a master cylinder piston during anti-lock braking events only by storing fluid in the hydraulic control unit (18, 218, 318). The additional displacement moves a seal mounted on the master cylinder piston away from a compensator port orifice, thereby preventing repeated 'nibbling' of the seal which can cause premature seal failure.

Brake system attenuation device

【課題】改善された減衰特性を有する、ブレーキシステム内の振動減衰のための装置を提供する。【解決手段】ブレーキシステム減衰装置（１０）であって、液圧が印加されるべき第１の室（２０）と、内部に圧縮性媒体が存在する第２の室（２４）と、前記第１の室（２０）を前記第２の室（２４）から分離するための第１の分離エレメント（２２）と、を有しており、前記ブレーキシステム減衰装置（１０）が、内部に圧縮性媒体が存在する第３の室（２８）と、前記第２の室（２４）を前記第３の室（２８）から分離するための第２の分離エレメント（２６）を有しており、前記第２の室（２４）が、前記第２の分離エレメント（２６）内に形成された通路（５０）によって媒体ガイド可能に前記第３の室（２８）に接続されている。【選択図】図１０

Spring element and corresponding piston pump for conveying fluids

Die Erfindung betrifft ein Federelement (10), insbesondere für eine Kolbenpumpe, mit einem scheibenförmigen Grundkörper (11), in welchem mindestens ein Federsteg (16) eingebracht ist. Erfindungsgemäß umfasst der Grundkörper (11) zur Drosselung einer Fluidströmung (8) mindestens eine dynamische Drosselstelle (14), wobei der Grundkörper (11) im Bereich der mindestens einen Drosselstelle (14) federnd ausgebildet ist, so dass der Öffnungsquerschnitt der mindestens einen Drosselstelle (14) in Abhängigkeit von einer Druckdifferenz variabel einstellbar ist.

Brake apparatus with orifices for restricting brake fluid pressure pulsation

In a brake apparatus, a pump sucks brake fluid and discharges the brake fluid through a pump discharge conduit. Orifices are connected in series with one another with respect to brake fluid flow discharged from the pump and restrict the brake fluid flow. Because the orifices are formed for restricting brake fluid pulsation, the brake fluid pressure discharged from the pump decreases gradually. Therefore, cavitations are not generated at lower reaches of the orifices because the brake fluid pressure does not decrease rapidly. As a result, the brake apparatus decreases or restricts undesirable noise.

Device for pulsation damping of brake system

Disclosed is a pulsation damping device for a brake system and includes: a reservoir connected to an upper portion of a master cylinder to generate a hydraulic pressure, storing oil, an accumulator storing the pressure at a constant level, a pump intaking oil from the reservoir and discharging the oil to the accumulator to generate the pressure in the accumulator, a motor to drive the pump, an inlet valve to control the oil supplied to a wheel cylinder installed to a wheel from the accumulator, and an outlet valve to control the oil discharged from the reservoir from the wheel cylinder. The pulsation damping device includes a damping member provided in a bore formed in a hydraulic block to be communicated with the hydraulic circuit connecting the inlet valve and the outlet valve to reduce pressure pulsation in the hydraulic circuit. The damping member has a piston slidably provided in the bore, a plug member provided to close one end of the bore and restrict the moving distance of the piston, and a resilient member interposed between the piston and the plug member to resiliently support the piston and dampen the oil pressure fed from an inlet side of the bore communicating with the hydraulic circuit.

hydraulic unit

본 발명은 하우징 블록(52), 및 하우징 블록(52)의 펌프 수용부(50) 내에 수용된, 펌프 흡입측 및 펌프 송출측을 구비한 펌프(30)를 포함한, 특히 슬립 조절 가능한 차량 브레이크 시스템용 유압 유닛(10)에 관한 것이다. 제 1 유체 채널(80)은 펌프 송출측의 영역에서 펌프 수용부(50)를 가로지른다. 본 발명에 따라 제 1 유체 채널(80)에 추가해서, 펌프 송출측의 영역에서 펌프 수용부(50) 내로 진입하는 제 2 유체 채널(82)이 하우징 블록(52) 상에 형성되고, 추가로 2개의 유채 채널들(80, 81)을 서로에 대해 밀봉시키는 제 1 분리 지점(100)이 제공된다. 본 발명은 차량 브레이크 시스템의 기능적 특성, 특히 압력 상승 역학에 부정적 영향을 미치지 않거나 또는 유압 유닛(10)의 컴팩트한 구조를 저해하지 않으면서, 맥동을 감쇠시키고 유압 유닛(10)의 작동 소음을 감소시키는 댐핑 장치(44)와의 접촉을 허용한다. The present invention relates to a housing block 52 and a pump 30 having a pump suction side and a pump discharge side accommodated in a pump receiving portion 50 of the housing block 52, in particular for a slip-adjustable vehicle brake system. It relates to the hydraulic unit (10). The first fluid channel 80 traverses the pump receiver 50 in the region on the pump outlet side. According to the invention, in addition to the first fluid channel 80 , a second fluid channel 82 , which enters the pump receiver 50 in the region on the pump outlet side, is formed on the housing block 52 , and further A first separation point 100 is provided which seals the two oil channels 80 , 81 to each other. The present invention dampens pulsations and reduces the operating noise of the hydraulic unit 10 without adversely affecting the functional properties of the vehicle brake system, in particular the pressure rise dynamics or impairing the compact structure of the hydraulic unit 10 . The damper allows contact with the damping device 44 .

Hydraulic brake apparatus

유압 브레이크 장치에 관한 발명이 개시된다. 본 발명에 따른 유압 브레이크 장치는: 오일을 토출하는 펌프; 펌프와 제1유로로 연통되고, 펌프로부터 토출되는 오일의 압력 맥동을 감소시키는 맥동저감부; 및 펌프와 제2유로로 연통되고, 펌프로부터 토출되는 오일을 차륜으로 전달하는 차륜전달부를 포함하고, 맥동저감부는, 내부 공간이 형성되는 바디부; 바디부에 고정되고, 제1유로로부터 유입되는 오일에 의해 팽창되며 오일의 압력 맥동을 감소시키는 댐퍼부; 댐퍼부를 감싸고, 바디부의 내부 공간 상에서 이동되며, 댐퍼부의 팽창을 제한하는 플런저부; 및 차량의 제동 여부에 따라 플런저부를 작동시키는 가압부를 포함하는 것을 특징으로 한다. The invention relates to a hydraulic brake device. A hydraulic brake device according to the present invention includes: a pump for discharging oil; a pulsation reducing unit communicating with the pump through the first flow path and reducing pressure pulsation of oil discharged from the pump; and a wheel transmission unit communicating with the pump through the second flow path and transmitting oil discharged from the pump to the wheel, wherein the pulsation reducing unit includes: a body portion having an internal space; a damper part fixed to the body part, expanded by the oil flowing in from the first flow path, and reducing the pressure pulsation of the oil; a plunger part surrounding the damper part, moving on the inner space of the body part, and limiting expansion of the damper part; and a pressing unit that operates the plunger unit according to whether the vehicle is braked.

Method for operating a brake system and a brake system

A method and system for operating a motor vehicle brake system, actuated in a “Brake-by-Wire” operating mode both by the vehicle driver and also independent of the vehicle driver, preferably operated in the “Brake-by-Wire” operating mode, and which can be operated in at least one fall-back operating mode, in which only operation by the vehicle driver is possible. The brake system has an electrohydraulic pressure and volume setting device, which electronically emits a brake system pressure under control, and a pressure modulation unit having, for each wheel brake, inlet and outlet valves for setting wheel-specific brake pressures. For setting wheel-specific brake pressures, the inlet and outlet valves are actuated analogously by being energized by different electrical currents, in order to assign a pressurizing agent volume flow provided by the pressure and volume setting device to the wheel brakes that have a pressure change requirement.

Feed pump for a hydraulic system

A feed pump for a hydraulic system that is equipped with at least one outlet valve whose valve-closing body is loaded by a valve spring. The valve-closing body is held at a distance form its valve seat by means of a gas-filled hollow-body ring so that the feed pump can be evacuated through its outlet valve for subsequent filling with a hydraulic pressure medium. With a first increase in pressure in the system, the hollow-body ring is pressed together, so that the valve-closing body slips through the hollow-body ring and reaches its valve seat, thus making the outlet valve operational. The feed pump is suitable for use as a return pump for anti-skid systems of hydraulic brake systems.

HYDRAULIC SYSTEM, AS A BRAKING SYSTEM FOR MOTOR VEHICLES OR SIMILAR, WITH A CHOKING BODY

Si intende realizzare un sistema idraulico con un corpo di strozzatura, di semplice esecuzione, altamente sollecitabile ed assumente sicuramente la sua posizione di montaggio.Il sistema idraulico possiede un generatore di pressione convogliante a impulsi, specialmente una pompa (13) a pistone, che pompa fluido sotto alta pressione in una camera di ammortizzatore (12) di una cassa (11). La camera (12) di ammortizzatore è collegata con un foro (15) che almeno approssimativamente è intersecato perpendicolarmente da un secondo foro (14) della cassa. Nel foro(14) della cassa è alloggiato un corpo di strozzatura (18), che è chiuso a tenuta perifericamente, è eseguito come manicotto e scavalca la zona di attraversamento del foro. In tal caso il foro di strozzatura (22), che attraversa la parete (23) del corpo di strozzatura (18), è situato nella sezione trasversale del foro di collegamento (15).L'esecuzione precedentemente descritta è impiegabile vantaggiosamente in sistemi idraulici, in cui fluido in pressione viene convogliato a impulsi con alte pressioni.

Slip-controlled brake system, especially for use with automotive vehicles

A slip-controlled brake system, especially for use with automotive vehicles has a brake pressure generator (1) accommodating a master cylinder (2) connected to the brake pressure generator through master brake conduits (62,63) are the wheel brakes (31 to 34), comprising hydraulic auxiliary pressure pumps (21,26) and wheel sensors (S1 to S4) and electronic circuits capable to control, for slip control purposed, electromagnetically actuable pressure fluid inlet valves (24,25,29,30) and pressure fluid outlet valves (22,23,35,36) provided in the pressure fluid conduits, with pressure pulsation attenuators (27) of a defined volume expansion and flow length being provided for noise reduction purposed during the control operation, between the master cylinder (2) and the wheel brakes (31 through 34).