Abstract: The invention relates to an actuator having a drive device which drives a drive shaft, a first actuating element which is operatively connected to the drive shaft, a spring element which can be supported on one side on a housing component of the actuator and is supported on the other side on a second actuating element which is configured for stressing the spring element, wherein a rotational element which can be driven by means of the drive shaft and is rotatably mounted is provided. According to the invention, a further actuating element for actuating a switching device is provided, which further actuating element is operatively connected to the first actuating element, and a transmission device with a transmission element is provided between the first actuating element and the actuating element of the switching device.

Abstract: A dual motor powered compact drive comprises two electrical motors powering the planetary gear mechanism. The dual drive can provide variable speed and torque. A single electric motor operated braking system with a screw-driven wedged brake pads is described using a compact test set-up. The system comprises at least one motor and a screw shaft connected to transmit the power to a sliding plunger, and braking pads located on a braking disc, and a force sensor applied to measure the braking force, and a device to measure the parameters of the braking motor and the parameters are used as the inputs to establish a control strategy. Systems and methods for monitoring a battery pack including multiple cells are provided. The battery management system further comprises a control strategy for implementing a balancing algorithm. A balancing strategy comprises a determination of battery cells to be balanced, and a calculated balancing current.

Abstract: A system for controlling an electric brake for a wheel rotor having a brake pad associated therewith includes a housing defining a passage. An assembly is provided in the passage and includes a spindle rotatable about an axis and a piston aligned with the brake pad and axially movable in response to rotation of the spindle. A planetary gear stage includes a sun gear, a ring gear, and planetary gears. A first motor is coupled to the sun gear. A second motor coupled to the ring gear. A control system is configured to, in response to a detected braking event, rotate the first motor in a first direction to supply torque to the sun gear while the second motor is rotated in a second direction at varying speeds to supply torque to the ring gear such that the piston is cyclically moved towards and away from the brake pad to modulate a braking force on the rotor.

Abstract: An electric brake booster for an autonomous vehicle is provided. The electric brake booster includes a body part that receives a power cylinder generating braking pressure in an autonomous driving/braking mode and a master cylinder generating braking pressure in a manual driver braking mode. A driving shaft is movable in an axial direction in the power cylinder and coupled to a piston. A first motor is connected to a first side of the driving shaft and provides driving power thereto. A second motor is connected to a second side of the driving shaft and provides driving power thereto in a direction equal to that of the driving power provided from the first motor. A controller determines whether the first or second motor normally operates and simultaneously or separately operates the first and second motors based on a magnitude of the pressure in the power cylinder or whether emergency braking occurs.

Abstract: A braking system for vehicles comprising —a manual actuator device, operable by means of a lever and/or pedal, operatively connected to at least a first braking device acting on a brake disc or drum, so as to exercise a braking action, —an automatic actuator device, operatively connected to said manual actuator device and/or to said first braking device, —at least one command panel which supervises the functioning of the braking system, said command panel being operatively connected to the automatic actuator device and being programmed so that when the manual actuator device is operated, the panel commands the operation of the automatic actuator device so as to be able to: —increase the overall braking action of the braking system, further operating the first braking device or further braking devices provided in said system and acting on further brake discs or drums, —control the braking action of the braking system so as not to further operate the first braking device or further braking devices of the system

Abstract: An electric brake device for a vehicle, including: a rotation body that rotates with a wheel; a friction member; and an actuator including (a) a piston configured to come into engagement with the friction member, (b) two electric motors each as a drive source, and (c) a motion converting mechanism configured to convert a rotating motion of each of the two electric motors into an advancing and retracting movement of the piston, the actuator being configured such that the piston is advanced to push the friction member against the rotation body so as to generate a braking force and the piston is retracted to move the friction member away from the rotation body so as to cancel the braking force.

Abstract: An electric brake apparatus of a vehicle includes a caliper body formed with a cylinder section and a boost force support section disposed to face the cylinder section with a brake disc interposed therebetween; an internal motor installed in the cylinder section, and generating a rotational displacement by application of current; a push rod disposed coaxially with the internal motor; a ball-in-ramp disposed between the internal motor and the push rod, converting the rotation displacement of the internal motor into a linear displacement, and transferring the linear displacement to the push rod; a piston disposed in an open part of the cylinder section, pushed and moved by the push rod; a first friction pad coupled to the piston, and disposed on one side of the brake disc; and a second friction pad coupled to the boost force support section, and disposed on the other side of the brake disc.

Abstract: A system and method for controlling a vehicle wheel brake are provided. The system includes one or more inertial sensors disposed within a handle coupled to, and configured for movement relative to, a fixed reference frame in the vehicle between a neutral position and one or more input positions. Each sensor generates an inertial measurement signal indicative of a value of an inertial measurement associated with movement of the handle and sensor between the neutral and input positions. A controller receives the signals, identifies a turning point in a rate of change of the value of one of the inertial measurement indicated by the signals, and generates an operator command signal when the value meets a predetermined condition. The operator command signal is configured to cause one of application or release of the wheel brake.

Abstract: A method of parking control for a vehicle equipped with an electric motor independent from a transmission includes calculating external force applied to wheels when predetermined conditions including shifting to a parking (P) stage are satisfied, determining whether a drive shaft fixing apparatus activated according to shifting to the P stage is combined, and controlling the electric motor such that a torque having a magnitude less than the external force is applied to the wheels in a direction opposite to the external force when the drive shaft fixing apparatus is determined to be combined.

Abstract: A brake motor control device for control of an electric brake motor of an electromechanical braking device includes a connection unit configured to be connected to an auxiliary control unit for controlling the electric brake motor in an event of a fault of the brake motor control device. The electric brake motor is configured to displace a brake piston against a brake disc.

Abstract: A clutch actuator for actuating a clutch in the drive train of a motor vehicle, having a housing, a drive, a pushrod, which can be adjusted in an axial direction by the drive, a tappet, which is coupled to the pushrod, and a guide component which is accommodated movably in the housing and receives that end of the tappet which faces the pushrod. At least one stroke sensor, which is associated with the guide component, and a rotation angle sensor, which is associated with the drive, are provided. Embodiments relate to an assembly having a clutch actuator of this kind and a controller, the controller is set up and designed to determine the start of the release stroke of a clutch actuated by the clutch actuator from a comparison of the signal of the stroke sensor and the signal of the rotation angle sensor.

Abstract: A vehicle kill switch assembly includes a switch that is coupled to a vehicle. The switch is positioned beneath a driver's seat of the vehicle and the switch is electrically coupled to the ignition system of the vehicle. The ignition system is turned off when the switch is disengaged. A biasing unit is coupled to the vehicle and the driver's seat is coupled to the biasing unit. The biasing unit biases the driver's seat upwardly in the vehicle and the biasing unit is compressed when the driver sits in the driver's seat. The switch is engaged when the biasing unit is compressed to facilitate the vehicle to be driven. Conversely, the switch is disengaged when the biasing unit biases the driver's seat upwardly to inhibit the vehicle from being driven.

Abstract: A brake actuator includes: a housing; an electric motor with a hollow motor shaft rotating; a rotating shaft disposed inside the motor shaft to be coaxial therewith; a piston with a rear end disposed inside the motor shaft and a front end engaged with the friction member; a speed reduction mechanism decelerating rotation transmitted from the motor shaft and transmitting the rotation to the rotating shaft; and a motion conversion mechanism converting a rotating motion of the rotating shaft into an advancing/retracting motion of the piston. The motor shaft is rotatably supported by the housing at an outer peripheral surface thereof, and the rotating shaft is rotatably supported by an inner peripheral surface of the motor shaft via rollers at an outer peripheral surface thereof as well as by the housing via a thrust bearing at a rear end of the rotating shaft.

Abstract: An asymmetric linear actuator is provided which integrates a hydraulic dissipater and an electric motor and power screw which generates small forces. The actuator is configured so that an electric motor drives a power screw which drives a rod through a cylinder to provide linear actuation. The cylinder is fluid-filled and incorporates a piston that separates the cylinder into a first and second fluid chamber which are filled with a first and second volume of working fluid. Movement of the piston and rod assembly results in fluid movement between the first and second volumes of working fluid and through the fluidic restriction. The fluidic restriction can be proportionally controllable via an electric motor which enables controllable power dissipation via control of the fluidic restriction motor and controllable power generation via control of the power screw motor.

Abstract: A parking brake control device is a control device for a vehicle used in a vehicle on which a shift by wire system and an electric parking brake system are mounted. A function of automatically operating an electric parking brake without an operation of the driver of the vehicle is referred to as an EPB automatic operation function, and a request by the driver for disabling the EPB automatic operation function is referred to as a disabling request. The parking brake control device includes a disabling determination part configured to determine a presence or absence of the disabling request, a vehicle stop determination part configured to determine whether the vehicle is stopped, a slope determination part configured to determine whether the vehicle is located on a slope, and an EPB automatic operation part. The EPB automatic operation part operates the electric parking brake when the vehicle is stopped on the slope even if the disabling request is made.

Abstract: Disclosed herein are a brake actuator and an electromechanical brake using the brake actuator and a control method thereof. The brake actuator provided in a disc brake to press or release a piston and controlled by an electrical signal includes a first actuator including a first power transmission unit configured to transmit power to the piston side; and a second actuator including a second power transmission unit configured to transmit power to the piston side; wherein the first and second power transmission units are arranged coaxially.

Abstract: The electric linear motion actuator includes an electric motor, a linear motion mechanism configured to convert rotary motion of the electric motor to linear motion of a linear motion part via a rotation input-output shaft, and a housing holding the linear motion mechanism. The electric motor includes a stator and a rotor which are arranged such that the directions of magnetic poles that generate interlinkage flux contributing to a motor torque are parallel with a rotation axis of the electric motor. The stator is arranged so as to be coupled with an axial end surface of the housing. The rotor is arranged so as to have a space, in the axial direction, from the torque generating surface of the stator, and the rotor is fixed to the rotation input-output shaft of the linear motion mechanism.

Abstract: A linear actuator includes a sliding rod, a motor and a buffer assembly. The motor connects the sliding rod to drive the sliding rod. The buffer assembly is disposed at an end of the sliding rod and includes an elastic element and an outer sleeve. The elastic element is received in the outer sleeve. The sliding rod connects the outer sleeve. The outer sleeve is movable along an axial direction of the sliding rod. The elastic element separately pushes an inner wall of the outer sleeve and the sliding rod. The elastic element is pre-compressed along the axial direction of the sliding rod. The buffer assembly can absorb vibration and impact caused by the motor driving the sliding rod.

Abstract: Provided is an electric actuator (1), including: a motor part (A); and a motion conversion mechanism part (B). The motion conversion mechanism part (B) includes: a ball screw shaft (33); and a ball screw nut (32), which is rotatably fitted to an outer periphery of the ball screw shaft (33), and is provided so as to be capable of transmitting torque with a rotor (24) of the motor part (A) rotatably supported through intermediation of a rolling bearing (27, 30). The ball screw shaft (33) advances toward one side in the axial direction or retreats toward another side in the axial direction in accordance with a rotation direction of the ball screw nut (32). In the electric actuator (1), a needle roller bearing (47) serving as a thrust bearing is arranged adjacent to the ball screw nut (32) on the another side in the axial direction.

Abstract: This braking control device comprises a differential mechanism, a first electric motor that generates assisting force in a braking operation member, a second electric motor that adjusts output rod shift of the differential mechanism, and a controller that controls the first and second electric motors. In the controller, the first electric motor is controlled on the basis of an assistance map in which the assisting force is calculated, and the second electric motor is controlled on the basis of a displacement map in which the output rod shift is calculated. When the displacement map is changed, the assistance map is corrected as well.

Abstract: A system and associated method for achieving both force and position control of motor-driven electrical brake actuators for a brake disc stack that has, and seeks to maintain, a characteristic built-in clearance among the discs. The system employs both force feedback and motor turns position feedback associated with the actuator during a braking operation in order to obtain a motor turns position that achieves the characteristic built-in clearance following braking action or the like.

Abstract: An asymmetric linear actuator is provided which integrates a hydraulic dissipater and an electric motor and power screw which generates small forces. The actuator is configured so that an electric motor drives a power screw which drives a rod through a cylinder to provide linear actuation. The cylinder is fluid-filled and incorporates a piston that separates the cylinder into a first and second fluid chamber which are filled with a first and second volume of working fluid. Movement of the piston and rod assembly results in fluid movement between the first and second volumes of working fluid and through the fluidic restriction. The fluidic restriction can be proportionally controllable via an electric motor which enables controllable power dissipation via control of the fluidic restriction motor and controllable power generation via control of the power screw motor.

Abstract: Systems and methods for controlling a park pawl system of a hybrid vehicle having a hybrid powertrain comprising an engine and a hybrid transmission comprising at least one electric propulsion motor, the systems and methods each utilizing a control system configured to detect, using a main control system portion, a desired park state based on at least an input via a transmission gear selector and an input via a brake pedal and detect, using a distinct monitoring system portion, whether the desired park state is valid based on at least the transmission gear selector and brake pedal inputs. When the desired park state is valid, the control system commands the park pawl system to the desired park state. When the desired park state is invalid, however, the control system commands an electric park brake of the vehicle to prevent movement at a driveline of the vehicle.

Abstract: An actuation device for an electromechanically actuatable vehicle brake, comprising an electric motor, at least one multistage transmission that has at least one intermediate transmission unit and at least one output transmission unit. The rotational axis of the output transmission unit extends through the at least one output shaft section and parallel to the rotational axis of the intermediate transmission unit and the rotational axis of the electric motor. One of the rotational axes of the electric motor, the intermediate transmission unit and the output transmission unit lies outside of a plane defined by two respective rotational axes of the rotational axes of the electric motor, the intermediate transmission unit and the output transmission unit.

Abstract: A braking device for a motor vehicle includes at least one brake, at least one brake pad, a brake disk, and an elastic element. The elastic element is configured to place the brake pad against the brake disk such that the brake pad and the brake disk generate either no braking force or a small braking force acting on the motor vehicle. The at least one brake is operatively interrelated with the elastic element.

Abstract: A linear actuator includes a sliding rod, a motor and a buffer assembly. The motor connects the sliding rod to drive the sliding rod. The buffer assembly is disposed at an end of the sliding rod and includes an elastic element and an outer sleeve. The elastic element is received in the outer sleeve. The sliding rod connects the outer sleeve. The outer sleeve is movable along an axial direction of the sliding rod. The elastic element separately pushes an inner wall of the outer sleeve and the sliding rod. The elastic element is pre-compressed along the axial direction of the sliding rod. The buffer assembly can absorb vibration and impact caused by the motor driving the sliding rod.

Abstract: A disk brake includes a disk overlapped by a caliper, at least one pad carried by the caliper, two different actuators, each one including a pinion and a mobile piston for pressing the pad against the disk by rotation of the pinions, a rotating shaft including two endless screws having opposite winding directions, the shaft being mobile in translation in the longitudinal direction thereof, and an electric motor for driving the rotating shaft. The rotating shaft extends between the two pinions with the two endless screws thereof each engaged in a pinion.

Abstract: Provided a screw feeding device, in which a buffer mechanism is incorporated between a rod member and a nut member. The screw feeding device includes: a screw shaft; the nut member, which has a flange portion, the rod member, which has a mounting portion facing the flange portion and a hollow portion; and a buffer mechanism, which connects the flange portion and the mounting portion, in which the buffer mechanism includes: a plurality of shafts, a pair of separators, through which the plurality of shafts pass, and which is movable along the plurality of shafts; and an elastic member, provided between the pair of separators, in which the plurality of shafts include: a shaft, fixed to the flange portion; and a shaft fixed to the mounting portion.

Abstract: A bidirectional pedal assembly for a vehicle. The assembly includes a support mounted on the vehicle and a pedal pivotally coupled to the support about a pivot shaft. The pedal pivots between a neutral position and first and second operational positions. A biasing member is mounted within the support and continuously biases the pedal to the neutral position. A control mechanism is coupled to the support and the pedal to retard pivotal movement of the pedal as the pedal returns from the operational positions to the neutral position. A handle can be coupled to the pedal and pivot concurrently with the pedal. A frictional mechanism can be disposed within the support and provide increasing resistance as the pedal moves increasingly away from the neutral position. The biasing mechanism, frictional mechanism, and/or control mechanism are configured to force the pedal to the neutral position with no overshoot within a predetermined period.

Abstract: A screw actuator comprises a screw shaft for threaded engagement with an actuator output device such that rotation of the screw shaft causes linear movement of the actuator output device; and a motor for driving rotation of the screw shaft. A no-back device is included for restricting movement of the screw shaft in response to feedback torque applied due to external forces on the actuator output device.

Abstract: A brake gear motor (1) comprising an electric motor (2) having a motor shaft (3); a reducer (4) operatively connected, with its input side (9), to said motor shaft (3), to receive a movement and a driving torque and transmit them with its side output (10) to the brake; a housing (5) having at least one chamber (6, 28, 29); said at least one chamber (6, 28, 29) being at least partly delimited by at least one chamber wall or mantle (7) wherein a support plate (8) is provided in said housing; said motor (2) is accommodated, at least in part, in said at least one chamber (6, 28, 29); said motor shaft (3) is supported freely rotatable in said support plate (8); said reducer (4) is accommodated in said at least one chamber (6, 28, 29); said reducer (4) is supported freely rotatable in said support plate (8); said housing (5) comprises a connection rim to the brake (11) suitable to couple said housing (5) to a brake calliper (12) so as to interface with said output side (10) of the brake and allow the movement of at

Abstract: A robotic vehicle may include a first chassis platform including a first wheel assembly, a second chassis platform including a second wheel assembly where the first and second chassis platforms are spaced apart from each other, and a combination linkage operably coupling the first and second chassis platforms. The combination linkage may be operably coupled to the first chassis platform via a first link and is operably coupled to the second chassis platform via a second link. The combination linkage employs at least two different coupling features to operably couple the first and second chassis platforms. The at least two different coupling features include at least any two among a fixed attachment, an attachment that enables rotation about a turning axis, and an attachment that enables pivoting about a pivot axis that is substantially perpendicular to the turning axis.

Abstract: A power supply device that converts inputted direct-current power to direct-current power with a predetermined voltage to supply the power to the outside includes a voltage conversion circuit that converts the voltage of the inputted direct-current power, a voltage measurement circuit that measures a voltage value indicating a voltage potential difference between a ground voltage potential in the power supply device and a ground point provided outside the power supply device and connected to the ground voltage potential via a ground strap cable, a current measurement circuit that measures a current value of a load current flowing when de direct-current power is supplied from the power supply device, and an arithmetic circuit that calculates a resistance value corresponding ground connection of the power supply device, based on the voltage value measured by the voltage measurement circuit and the current value measured by the current measurement circuit.

Abstract: Since a second reinforcing rib (24e) protruding from a motor accommodating portion (24) to outside is provided to a portion formed with a weld line (WL) formed by the merger of molten resin (MR), the material thickness of the portion formed with the weld line (WL) can be increased. Therefore, the strength of the portion formed with the weld line (WL) is improved, and the strength of a case (21) as a whole can be improved. The case (21) sufficiently resistible to outer shocks can be achieved, and can be sufficiently used even in adverse environments such as a place near an undercarriage of a vehicle, and high reliability can be obtained. Since a small flange portion is provided on a caliper fixing portion side which supports an output shaft where large running torque is loaded, the weld line can be kept away from the caliper fixing portion, with this small flange portion taken as an inlet portion for the molten resin.

Abstract: A P-range engagement method of the vehicle and a device thereof are disclosed. The P-range engagement method is applied to the vehicle equipped with an electronic shift lever, and the method includes performing the vehicle stopping process based on detection of stopping of a traveling vehicle through a control device, holding wheel disks of the vehicle through a controller that is controlled by the control device, comparing the vehicle stopped time period, which is measured by the control device, with a predetermined reference value stored in the control device to determine whether the vehicle stopped time period exceeds the predetermined reference value, and upon determining that the vehicle stopped time period exceeds the predetermined reference value, determining whether conditions for performing P-range engagement are satisfied, and upon determining that the conditions for performing the P-range engagement are satisfied, completing the P-range engagement.

Abstract: A braking control device controllable in cooperation with a regenerative brake includes a case member fixed to the master cylinder, a first electric motor fixed to the case member, a second electric motor fixed to the case member independently of the first electric motor, a linearly movable input rod mechanically connected to the braking operation member, an output rod which presses pistons in the master cylinder and which is linearly movable in parallel with a central axis of the input rod, a differential mechanism which receives output from the first and second electric motors, is allowed to relatively move between the input rod and the output rod, and is built in the case member, and a controller which controls the output from the first electric motor and the output from the second electric motor to independently control force acting on the input rod and displacement of the output rod.

Abstract: An electric brake caliper, including: a caliper main body; brake pads; and an actuator including a piston, an electric motor of a rotary type, and a motion converting mechanism, wherein the motion converting mechanism includes a hollow output sleeve configured to be linearly moved to move the piston disposed at one end of the output sleeve nearer to the one of the brake pads and an input shaft disposed in the output sleeve and configured to be rotated by the electric motor, the motion converting mechanism being configured to convert rotation of the input shaft into a linear movement of the output sleeve, wherein the electric motor includes a hollow driving rotary shaft, and wherein the motion converting mechanism is disposed in the driving rotary shaft, and the input shaft includes a flange whose outer circumferential end is in mesh with an inner circumferential portion of the driving rotary shaft.

Abstract: A numerical controlled drive tower pumping unit includes a main tower frame, a power system, a drive system, a control system, a wire rope wheel, a balance weight box, and a suction rod. The power system, drive system, and control system work to alternately raise and lower the suction rod. The pumping unit includes a safety braking system configured to permit free rotation of the drive system in a normal operating state and prevent rotation of the drive system in an abnormal operation state. The pumping unit includes a tower moving mechanism configured to roll the main tower frame along a foundation frame from a normal operation position with the main tower frame proximate to a wellhead borehole to a workover position with the main tower frame distant from the wellhead borehole. The moving mechanism includes retractable roller assemblies to facilitate movement of the main tower frame.

Abstract: A system and method for braking a flat-towed vehicle based upon a braking pressure of a braking fluid in a braking circuit in the towing vehicle, the method includes measuring a piezoresistor voltage drop across a piezoresistor positioned within the braking circuit such that the piezoresistor voltage drop changes in response to the braking pressure within the braking circuit. Based upon the measured piezoresistor voltage drop, a motor frame duration is retrieved. A clutch engages the motor output shaft to initiate a clutch frame. Upon expiration of a programmed clutch delay, a motor frame initiates by supplying power to a motor. Upon expiration of the motor frame duration, power to the motor is interrupted. The clutch continues to be engaged for the duration of the clutch frame. The clutch releases allowing a capstan attached to the clutch to spin freely relative to the motor output shaft.

Abstract: An actuator for actuating a valve mechanism, such as a gate valve mechanism, a blow-out preventer or the like for maritime oil or gas production. The actuator includes at least one motor housing. The motor housing includes an electric motor, a vehicle adapter at a first housing end of the motor housing to dock with a remote controlled vehicle, and a connection adapter at a second housing end to dock with a spring assembly housing disposed on the valve mechanism. The spring assembly housing includes a spring assembly that pressurizes a spring piston displaceably mounted in the spring assembly housing.

Abstract: Disclosed herein are a vehicle control apparatus and a vehicle control method thereof. The vehicle control apparatus includes an input unit to receive first current heat energy calculation information, receive second current heat energy calculation information, and receive a current degree of slope; an estimator to estimate a current temperature of the brake apparatus on the basis of information regarding the difference between the first current heat energy calculation information and the second current heat energy calculation information; a compensator to compensate for braking power between the brake apparatus and the brake friction material; and a controller to receive the first current heat energy calculation information, the second current heat energy calculation information, and the current degree of slope, transmit an estimation command to the estimator, and transmit a compensation command to the compensator.

Abstract: Disclosed herein is an electronic parking brake including: a carrier fixed to a body of a vehicle; a caliper housing that is slidably installed in the carrier; a motor that is disposed at an outside of the caliper housing and generates a rotational force; a decelerator that amplifies the rotational force of the motor; and a conversion unit that converts a rotational force transmitted from the decelerator into a rectilinear motion, wherein the decelerator includes a belt planetary gear part, and the belt planetary gear part includes: a solar gear rotated by receiving the rotational force of the motor; a belt gear engaged with the solar gear; a transmission plate that is connected to the belt gear and has belt support parts for supporting the belt gear so that the belt gear is rotatable; and a ring gear that is engaged with an outer surface of the belt gear and fixed to the belt gear so as to rotate the transmission plate.

Abstract: A pressure generator for a hydraulic vehicle brake system includes a piston-cylinder unit, a piston, a ball screw drive configured to move the piston, an electric hollow-shaft motor that surrounds and is configured to drive the ball screw drive, and a planetary gear set configured to transmit a rotational movement of the hollow-shaft motor to the ball screw drive. The generator also includes a flange part, a sleeve, and an axial needle-roller bearing. The flange part has a tubular collar configured to axially guide the piston in a movable fashion therein. The sleeve has a flange configured as a counterbearing which is attached to an interior of the tubular collar, and is further configured to support the bearing. The bearing is configured to rotatably mount and axially support the ball screw drive.

Abstract: To reduce the attainable actuation times of an electrically actuated friction brake and simultaneously keep the friction brake inexpensive, an electrically actuated friction brake with a brake pad (3) actuated by an actuation device (10) is proposed, wherein for braking the actuation device (10) is driven by a spring and is held open by an electrical actuator (12), so that the spring actuates the friction brake (1) in case of a power loss, wherein a first transmission element (5), that is connected to the brake pad (3), and a second transmission element (8) with an elevation curve (17) are provided and a coupling element (15) is provided on the first transmission element (5), wherein a follower element (14) is arranged on the coupling element (15) that follows the elevation curve (17) under the action of the spring for actuating the first transmission element (5).

Abstract: An object of the present invention is to obtain a brake system that can generate appropriate braking force without influence of temperature. A brake system includes: a piston that presses pressing members; a motor that moves the piston; a current detection unit that detects current flowing in the motor; a storage unit that stores a correspondence relation between idle running current and motor stopping current; a motor stopping current setting unit that sets the motor stopping current using the storage unit and the idle running current; and a control unit that stops to supply the current to the motor when the current flowing in the motor reaches the motor stopping current. The correspondence relation is set so that the rate of change of the motor stopping current relative to the idle running current becomes smaller when the idle running current is small than that when it is large.

Abstract: A pressure generating apparatus for a braking system of a motor vehicle, a flange embodied on a second housing component adjacent to a first housing component, which flange is congruent with a flange-shaped portion of the first housing component, is mounted on the flange-shaped portion of the first housing component, and the second housing component completely surrounds a transmission gear set of the first housing component. Also described is a hydraulic assemblage for interacting with the pressure generating apparatus, to a braking system for a motor vehicle, and to a method for installing a braking system for a motor vehicle.

Abstract: A disk brake piston having a spindle nut, and a load bearing column within a piston body. The load bearing column includes a footing configured to push against a brake pad and a core extending from the metal footing and slidably located within the piston body, wherein the spindle nut is configured to contact and push the metal core which pushes the metal footing which pushes on the brake pad.

Abstract: An actuator for a motor vehicle functional unit includes a force transmission unit transmitting an actuating force to an actuating member and being displaced by a measuring travel in a force transmission direction. A force measurement device detects an actual value of the actuating force and includes a spring acting in the force transmission direction, having resilient action counter to which the force transmission unit is displaced and being tensioned by the actuating force over a resilient excursion, a micro switch having smaller switching travel than the measuring travel and being actuated upon displacement of the force transmission unit if the actuating force reaches the actual value, and a stop element for actuating the switch. The switch or element are coupled to or fixed relative to the force transmission unit and the switch and/or element are resiliently supported to compensate for a difference between the switching and measuring travels.

Abstract: Disclosed are electro-hydraulic brake system and control method. The system may include a braking input unit to provide a braking input according to an operation of a driver, a control unit to control generation of braking oil pressure according to the braking input of the braking input unit, a pressure generating unit to generate the braking oil pressure, wheel clamping units to generate braking forces to corresponding wheels, and oil supply lines to transfer the braking oil pressure to corresponding wheel clamping units. Each oil supply line is fluidly connected to the pressure generating unit. For each oil supply line, a split valve is installed in a connection portion of the pressure generating unit and the oil supply line. When the split valve is closed, the split valve blocks the braking oil pressure supplied from the pressure generating unit to the oil supply line.

Abstract: A powered hand brake for locomotive brakes that latches a brake chain into a locked position after the brake cylinder has applied the locomotive brakes. A computer controlled brake system may be interconnected to the brake cylinder and the latch and programmed to set the latch into the latched position when the brake cylinder has moved the locomotive brake into the applied position. An actuator is coupled to the brake chain to take up slack in the brake chain as the brake chain moves between the first and second positions. The actuator can comprise a motor or a tensioning cylinder that takes up slack in the brake chain after the brakes have been applied. Alternatively, the actuator may comprise a linkage connecting the brake chain to the locomotive brake so that the slack in the brake chain is taken up as the brakes are applied.