Abstract: A system, template, and method of managing virtual control units in an industrial automation facility are provided. The industrial automation facility includes machines. The method includes generating templates including deployment criteria for the virtual control units. Each of the virtual control units is capable of controlling at least one of the machines. The virtual control units are mapped to one or more compute nodes based on the deployment criteria. The virtual control units are instantiated on the mapped compute nodes when the controlled machines are in operation. The method includes validating that the instantiation of the virtual control units is in accordance with the templates using an attestation that confirms determined deployment parameters after deployment of the virtual control units. The machines perform the industrial process, according to control commands received from at least one of the virtual control units, when the virtual control units are validly instantiated.

Abstract: A steering system for a trailing axle of a motor vehicle includes an electric motor, a hydraulic pump, a first valve, and a working cylinder. The electric motor is configured to drive the hydraulic pump. The working cylinder has a central bore and a piston positioned in the working cylinder. The first valve is fluidically connected to the pump such that the first valve is configured to block flow between the central bore and the pump in response to pressure generated by the pump, and to release the flow in response to a non-pressurized state of the pump in order to divert hydraulic fluid from the working cylinder through the central bore via an adhesion-driven movement of the piston into a central position in the central bore. A method includes operating a steering system for a trailing axle of a motor vehicle of this type.

Abstract: A steering system for a trailing axle of a motor vehicle includes an electric motor, a hydraulic pump, a first valve, and a working cylinder. The electric motor is configured to drive the hydraulic pump. The working cylinder has a central bore and a piston positioned in the working cylinder. The first valve is fluidically connected to the pump such that the first valve is configured to block flow between the central bore and the pump in response to pressure generated by the pump, and to release the flow in response to a non-pressurized state of the pump in order to divert hydraulic fluid from the working cylinder through the central bore via an adhesion-driven movement of the piston into a central position in the central bore. A method includes operating a steering system for a trailing axle of a motor vehicle of this type.

Abstract: This invention is a steering system for a trailing or leading axle of a vehicle including a steering angle sensor, a driving speed sensor, an electric motor that drives a hydraulic pump, a working cylinder for steering wheels of the axle, which is joined to the hydraulic pump, a control device which determines a trailing angle of the wheels and which controls the electric motor, wherein the working cylinder has a center position borehole via which hydraulic fluid is emitted, and a piston seals the center position borehole in the straight position of the wheels, wherein the working cylinder is connected to return valves, via which hydraulic fluid can flow back into a tank, wherein the center position borehole is connected to a center position valve, via which hydraulic fluid can flow back into a tank, and wherein the return valves and the center position valve are poppet valves.

Abstract: A steering system for a trailing or leading axle of a vehicle includes a steering angle sensor for measuring a steering angle of wheels of a front axle of the vehicle, a driving speed sensor for measuring a driving speed of the vehicle, an electric motor that drives a hydraulic pump, and a working cylinder connected to the hydraulic pump for steering the wheels of the trailing axle. The system also includes a control device that determines a trailing angle of wheels on the trailing axle of the vehicle and actuates the electric motor in a corresponding manner. The working cylinder has a center position borehole via which hydraulic fluid is released from the working cylinder. A piston closes the center position borehole in the straight-ahead position of the wheels of the trailing axle. The center position borehole can only be closed by a piston seal of the piston.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling power states of a device. In one aspect, a circuit is configured to perform operations comprising: receiving, on a data pin of an SPI control interface, a command to enter a reduced power mode; determining that a select signal on a select pin of the SPI control interface has been released; in response to receiving the command to enter the reduced power mode and determining that the select signal has been released, causing the circuit to enter the reduced power mode; determining that the select signal on the select pin of the SPI control interface has been asserted; and in response to determining that the select signal on the select pin has been asserted, causing the circuit to exit the reduced power mode.

Abstract: The invention relates to a steering system for at least one trailing or leading axle of a vehicle, comprising: a steering angle sensor for measuring a steering angle of wheels of a leading axle of the vehicle; a driving speed sensor for measuring a driving speed of the vehicle; an electric motor (1.2) that drives a hydraulic pump (2); a working cylinder (11) for steering the wheels of the trailing axle, which is joined to the hydraulic pump (2); a control device (1.1) which determines a trailing angle of wheels on the trailing axle of the vehicle, using the data of the steering angle sensor and the driving speed sensor, and which controls the electric motor in a corresponding manner, wherein the working cylinder (11) has a centre position borehole (1.3) via which hydraulic fluid can be emitted from the working cylinder (11), and a piston seals the centre position borehole (11.

Abstract: Systems, methods and circuits implementing a multi-protocol frame filter are disclosed. In some implementations, one or more programmable registers are configured to store frame filter data. A receiver is configured to receive an incoming frame. A multi-protocol frame filter is coupled to the one or more programmable registers and the receiver. The multi-protocol frame filter is configured for: comparing one or more fields of the incoming frame to the frame filter data, where the one or more fields are indicative of a wireless communications protocol; and determining, based on the comparing, to accept or discard the frame.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling power states of a device. In one aspect, a circuit is configured to perform operations comprising: receiving, on a data pin of an SPI control interface, a command to enter a reduced power mode; determining that a select signal on a select pin of the SPI control interface has been released; in response to receiving the command to enter the reduced power mode and determining that the select signal has been released, causing the circuit to enter the reduced power mode; determining that the select signal on the select pin of the SPI control interface has been asserted; and in response to determining that the select signal on the select pin has been asserted, causing the circuit to exit the reduced power mode.

Abstract: A multiway rotary valve includes two valve elements for directing a pressurized medium to and from two working chambers of a servomotor and to a return connection for a pressurized-media vessel. The two valve elements can rotate relatively to each other. One valve element has a cavity, in which two planar control surfaces facing each other are disposed. The other valve element is a planar disk, which has two planar control surfaces facing away from each other. The planar control surfaces of the two valve elements have control openings that interact with each other. The inner valve element can be rotated by a limited angle by an actuator. The actuator, in the form of, for example, an impacting rod acts upon the valve element in a tangential direction. The valve element is designed as a semicircular disk, upon the radial contact surfaces of which the two impacting rods act, the two impacting rods being controllable by electromagnets.