| Patent application number | Description | Published |
|---|
| 20080217118 | Bellows for a Self-Amplifying Electromechnical disc Brake and Disc Brake with Such a Bellows - The invention relates to a bellows for a self-energising electromechanical disc brake. According to the invention, a low deformation force may be achieved by means of a bellows with an elliptical, offset cross-section tapering in one direction and, in opposing circumferential sections of the bellows, the provision of circumferential folds of small curvature and inclined folds along the longitudinal sides of the bellows. | 09-11-2008 |
| 20080217120 | Self-Reinforcing Electromechanical Disc Brake - The invention relates to a self-reinforcing electromechanical disc brake having a brake caliper produced by means of shaping, in one piece with a housing for electromechanical parts of an actuating device of the disc brake, with the housing forming a dimensionally stable hollow body. It is possible in this way to produce a bending-resistant and torsionally rigid brake caliper with a low wall thickness. | 09-11-2008 |
| 20080217121 | Electromechanical Brake - The invention relates to an electromechanical disk brake which has a switchable freewheel in order to be configured as a parking brake. The switchable freewheel includes a clamping roller freewheel having rollers for locking a motor shaft of an electric motor of the brake. A locating bearing of the motor shaft of an electric motor, and the freewheel are accommodated on a cover of a housing of the electric motor, and all the electric connections of the disc brake are routed via the cover. The number of components used can be reduced considerably by the integrated design. Moreover, the positional tolerances of the freewheel in relation to the motor shaft can be reduced with the aid of the invention. | 09-11-2008 |
| 20080245622 | Self-Boosting Friction Brake - The invention relates to a self-boosting electromechanical friction brakes particularly in the form of a partially lined disk brake. The friction brake includes a friction brake lining which is helically movable with respect to the direction of rotation of a brake disk and pressed there into. A ramp mechanism is provided with ramps which cooperate with a roller bearing mechanism supporting the brake lining, to obtain the self-boosting effect. According to the invention, two of three rolls of the ramp mechanism are embodied with directing flanges for guiding the rolls on the ramps in order to helically guide the friction brake lining. | 10-09-2008 |
| 20080261773 | Selective Freewheeling Mechanism and Electromechanical Vehicle Brake Having A Selective Freewheeling Mechanism - The invention relates to a selective freewheeling mechanism for developing an electromechanical vehicle brake (service brake) into a parking brake. The freewheeling mechanism according to the invention has an outer ring and a locking element cage which are configured as an electric motor with a rotor and a stator. The rotor and stator can be swiveled in relation to each other when a coil is supplied with current. Due to a symmetric design, the freewheeling mechanism is advantageously insensitive to acceleration forces. | 10-23-2008 |
| 20080283347 | Electromechanical Friction Brake - The invention relates to a self-energizing electromechanical friction brake includes a self-energizing device provided with, for example, a wedge mechanism. According to the invention, the friction brake is equipped with a linear drive, for example an electromagnet, for brake actuation. The self-energizing device converts a friction force exerted by a rotating brake body on a friction brake lining during braking actuated by the linear drive of an actuation device into a second contact pressure that presses the friction brake lining against the brake body in addition to the first contact pressure exerted by the actuation device. The self-energizing device provides a non-proportional characteristic magnetic force curve of the electromagnet of the linear drive. | 11-20-2008 |
| 20080289922 | Drum Brake - The invention relates to a drum brake having an electromechanical actuating device. The invention proposes to convert a rotating drive movement of the actuating device by use of a gearwheel and two toothed racks. The toothed racks mesh with the gearwheel on opposite sides thereof and are driven in opposite directions by the gearwheel into translational movements for pressing attached brake shoes against a brake drum. The toothed racks are configured in such a way that the two toothed racks have a common line of action, with resulting symmetrical actuating forces. According to one embodiment of the invention, the lines of action of the toothed racks run tangentially with respect to the gearwheel. | 11-27-2008 |
| 20080296102 | Self-Amplifying Electromechanical Partial Lining Disc Brake - The present invention relates to a self-amplifying electromechanical partial lining disc brake, having a ramp mechanism as a self-amplification device. According to the invention, a rack for driving a friction brake pad is situated between roller elements of the ramp mechanism, particularly at a geometrical centroid of an imaginary surface defined by the roller elements. As a result a load is distributed to the roller elements in a more uniform fashion and the pressing force of the friction brake pad against a brake disc when the partial lining disc brake is actuated is distributed more uniformly and counteracts irregular pad wear. | 12-04-2008 |
| 20090194385 | Positive-Fit Freewheel Mechanism That Can Be Electromechanically Actuated, Electromechanical Brake With A Freewheel Mechanism Of This Type For A Motor Vehicle and Method For Adjusting The Play In A Brake Of This Type - The invention relates to an electromechanically switchable form-locking freewheel mechanism for preventing an electromechanical brake from releasing. According to the invention, the freewheel mechanism is embodied in the form of an electric motor in which a pivot angle of the armature is limited, the armature is counterbalanced and has a locking element that cooperates with a gear. The invention permits a compactly designed freewheel mechanism that can be integrated into an electromechanical actuating unit of the electromechanical brake. The counterbalancing of the armature equipped with the locking element prevents external accelerations of the freewheel mechanism of the kind that can occur during driving operation of a motor vehicle from exerting a moment on the armature that could switch off the freewheel mechanism. A method for adjusting the clearance of an electromechanical brake is also provided. | 08-06-2009 |
| 20100032249 | DISK BRAKE - The invention relates to a disk brake with an electromechanical actuator which, for example, has a piezo-element, and with a hydraulic self-energizing device. In order to control the self-energizing effect, the invention provides a valve hydraulically between an auxiliary piston of the self-energizing device and a brake piston of the disk brake with which the brake piston can be hydraulically isolated from the auxiliary piston. This means that the self-energizing effect of the disk brake can be switched off. Using a modulated valve control and/or use of a proportional valve, the level of the self-energizing effect can be controlled or regulated. In order to avoid a blockage, the invention additionally provides a blockage protection valve with which the auxiliary piston or the brake piston can be connected to a hydraulic accumulator at ambient pressure. | 02-11-2010 |
| 20100193298 | SELF-AMPLIFYING ELECTROMECHANICAL FRICTION BRAKE - The invention relates to a self-amplifying electromechanical disc brake, having a friction brake lining, which is able to move on a helical path and having a rack-and-pinion mechanism for moving the friction brake lining and for actuating the disc brake. According to the invention, a rack of the rack-and-pinion mechanism is connected to the friction brake lining in articulating fashion and in the region of a pinion, an abutting support keeps the rack engaged with the pinion, with play, thus permitting the rack to pivot in order to compensate for the helical movement of the friction brake lining. | 08-05-2010 |
| 20100332180 | METHOD AND DEVICE FOR DETERMINING ONE OR MORE ROTATIONAL SPEEDS OF A TURBOCHARGING DEVICE, IN PARTICULAR FOR AN INTERNAL COMBUSTION ENGINE - A method is described for determining information about a rotational speed of a compressor, in particular a turbocharger, by providing a measuring signal, in particular a microwave measuring signal, which is directed at a compressor impeller of the compressor, so that the measuring signal is reflected on revolving blades of the compressor impeller, detecting the measuring signal reflected by one or more blades, and determining the information about the rotational speed as a function of the reflected measuring signal. | 12-30-2010 |
