89results about How to "Increased fail-safety" patented technology

An apparatus for monitoring a spatial area, in particular for safeguarding a hazardous area of an automatically operated installation, comprises an illumination device which at least temporarily emits light signals into the spatial area. A first image recording unit records a first image of the spatial area. The first image recording unit comprises an image sensor having a plurality of pixels. An evaluation unit determines a distance value for at least one spatial area point, which is located in the spatial area and is imaged on at least one pixel, by means of a propagation type measurement. The propagation type measurement suffers from a limited unambiguity range. Therefore, a test device is designed to check the distance value by means of a reference distance value determined from a second image of said spatial area.

An integrated control system includes a main control system (accelerator) controlling a driving system, a main control system (brake) controlling a brake system, and a main control system (steering) controlling a steering system, based on manipulation by a driver, as well as an adviser unit generating and providing information to be used at each main control system based on environmental information around the vehicle or information on a driver. The advisor unit outputs to the main control system (accelerator) sudden acceleration / deceleration risk information having the risk set to “high” when the vehicle is parked in a parking lot, based on information from a navigation device or a surroundings monitoring sensor. The main control system (accelerator) selects a parking state property map based on the sudden acceleration / deceleration risk information having the risk set to “high”, and calculates a target driving force smaller than that corresponding to accelerator pressing by the driver.

A SBW control system is disclosed which is powered by an electric power source on a vehicle to electrically control mode shifting of an automatic transmission of the vehicle. The SBW control system includes: 1) means for inputting a shift command to shift a current operating mode of the automatic transmission to a desired operating mode; 2) means for shifting the current operating mode to the desired operating mode according to the shift command; 3) means for locking an output shaft of the automatic transmission when the desired operating mode is P (park) mode and unlocking the same otherwise; 4) means for detecting an abnormal condition of the vehicle; and 5) means for controlling the locking / unlocking means in such a manner that when the abnormal condition is detected, the output shaft of the automatic transmission is unlocked regardless of whether or not the desired operating mode is P mode.

Five electronic control units (ECU) control vehicle devices using CAN protocol. Each of ECUs is provided with a resistor and a switch for activating the resistor. A first and fifth ECUs are arranged on the leftmost and rightmost ends. Resistors of the first and fifth ECUs are used as terminating resistors to a two-wire communications line. When the two-wire communications line is broken, the first ECU sends a test signal while other ECUs excluding the fifth ECU turn on the switches from right to left. When the test signal can be received, a broken point is located on the right side of ECU that turns on its switch at this time. Thereafter ECUs on the left side of the broken point conduct communication.

The invention relates to an apparatus for estimating angles in a synchronous machine (11), having an angle sensor device (15) which is designed to determine event-discrete measured values for a rotor angle (φ) of a rotor of the synchronous machine (11) and to output a measurement signal dependent on the determined measured values, an estimation device (16) which is designed to record current and / or voltage signals from the synchronous machine (11), to calculate a deviation (Δφ) of the rotor angle (φ) of the rotor of the synchronous machine (11) from an expected rotor angle on the basis of the recorded current and / or voltage signals and to output a deviation signal dependent on the calculated deviation (Δφ), and a combining device (17) which is designed to receive the measurement signal and the deviation signal and to calculate an estimated value ({circumflex over (φ)}) for the rotor angle (φ) of the rotor of the synchronous machine (11) from a combination of the measurement signal and the deviation signal.

A power electronics system for charging at least one electrically operated vehicle, wherein the power electronics system has at least two modules each having at least one terminal pair with DC output, at least one rectifier, at least one AC input, at least one DC link and a number of switching elements the switching elements are arranged at and / or between the DC outputs of the at least two modules in such a way that, between the at least two modules, at least one series and one parallel circuit configuration can be selectively dynamically set by suitable switching states of the switching elements.

The invention relates to a high-sensitivity vibration isolation platform based on linkage type magnetorheological fluid dampers. The high-sensitivity vibration isolation platform comprises a fixed platform, a movable platform, the dampers, a linkage pipe, piston rods and a compensation air cylinder, the linkage pipe is fixed to the fixed platform, and is of a cross structure, the linkage pipe comprises a compensation air cylinder connector in the center and four damper connectors around the linkage pipe, the compensation air cylinder is communicated with the compensation air cylinder connector, the four dampers are communicated with the four damper connectors respectively, the lower ends of the piston rods are connected in the dampers, and the upper ends of the piston rods are in sliding connection with the movable platform. According to the vibration isolation platform, the problems generated when a traditional linear vibration isolation system isolates low-frequency or ultralow-frequency vibration are solved, and the defects that the vibration isolation platform is complex in structure and high in manufacturing cost, consumes energy and the like are overcome. The vibration isolation platform has the advantages that the structure is simple, damp stepless adjustment is achieved, the vibration isolation platform is suitable for wide frequency domain vibration isolation and can be widely applied to precision equipment with restrict requirements for vibration isolation, and the good engineering applicability is achieved.

A power electronics system for charging at least one electrically operated vehicle, wherein the power electronics system has at least two modules each having at least one terminal pair with DC output, at least one rectifier, at least one AC input, at least one DC link and a number of switching elements the switching elements are arranged at and / or between the DC outputs of the at least two modules in such a way that, between the at least two modules, at least one series and one parallel circuit configuration can be selectively dynamically set by suitable switching states of the switching elements.

The invention relates to an electro-pneumatic pressure regulation module (16) for electro-pneumatic brake systems of vehicles, designed as a unit, comprising at least two pressure regulation channels which can be regulated separately, wherein for each pressure regulation channel a regulated working pressure, which is present on at least one working pressure port (44, 46), is generated for at least one brake application device (48, 50) of the brake system based on working air that is derived from at least one compressed air supply (4, 6), depending on the brake demand signals of a braking power sensor (2). The invention includes a) that in order to create pressure regulation channels having separate pneumatic circuits, at least one dedicated supply pressure port (14, 24), which can be connected to a dedicated compressed air supply (4, 6), is assigned to each pressure regulation channel, wherein b) the pneumatic flow paths of each pressure regulation channel, at least starting from the respective supply pressure port (14, 24) to the respective working pressure port (44, 46), are designed pneumatically separate from the pneumatic flow paths of the respectively other pressure regulation channel.

A plurality of magnetic pole bodies, provided on a stator of a steering motor, are divided into two electrically independent groups. Each group includes i) six magnetic pole bodies that are arranged in succession and ii) a corresponding number of magnetic pole bodies arranged opposing those six magnetic pole bodies. The two groups vibrate only slightly when operating normally. However, if one of the groups fails, vibration of the stator from elastic deformation in an undulating manner in the circumferential direction will increase, thereby alerting the driver of an abnormality in the steering motor. This increases the likelihood of measures being taken promptly to fix the abnormality in the steering motor, thus improving fail-safe performance.

There is disclosed a multicopter vertical takeoff and landing (VTOL) aircraft. The aircraft comprises am airframe with spatial design, a pilot seat, a cockpit, controls, engine units, engine compartment, control system, remote control system. The airframe consists of a central section and, at least, two peripheral sections, wherein peripheral sections can be folded up or down, or be retracted under the central section. The central section and peripheral sections of the airframe have spatial design. Each of the peripheral sections comprises at least three standard engine compartments which are connected to each other. Inside each engine compartment there is an engine unit which comprises at least one engine and at least one horizontally rotating propeller together with the control hardware. Each engine unit is an autonomous member of the distributed control system (DCS).

A plurality of magnetic pole bodies, provided on a stator of a steering motor, are divided into two electrically independent groups. Each group includes i) six magnetic pole bodies that are arranged in succession and ii) a corresponding number of magnetic pole bodies arranged opposing those six magnetic pole bodies. The two groups vibrate only slightly when operating normally. However, if one of the groups fails, vibration of the stator from elastic deformation in an undulating manner in the circumferential direction will increase, thereby alerting the driver of an abnormality in the steering motor. This increases the likelihood of measures being taken promptly to fix the abnormality in the steering motor, thus improving fail-safe performance.

A brake fluid pressure control device controls brake fluid pressures through control of fluid pressure control valves operated in accordance with control signals from, for example, a computer. Signal lines for supplying control signals to control circuits controlling coils of linear valve devices for some wheels (e.g., front-left and rear-right wheels) are connected to a brake ECU by a connector, and signal lines for supplying control signals to the control circuits controlling coils of linear valve devices for other wheels (e.g., front-right and rear-left wheels) are connected to the brake ECU by a different connector. Thus, even if one of the connectors starts operating abnormally, it is possible to supply control signals via the signal lines connected by the other connector and control linear valve devices for some of the wheels (e.g., a pair of diagonally located wheels).

The invention relates to a device (710, 720, 730, 740) for monitoring an energy store (20; 30) comprising a plurality of battery cells (5001111-500klmn), which are arranged in a plurality of battery groups (2001-200k, 30011-300kl, 400111-400klm), and a temperature-control device for controlling the temperature of the battery cells (5001111-500klmn) by means of a plurality of partial flows of a temperature-control medium, each of the partial flows being associated with one of the battery groups (2001-200k, 30011-300kl, 400111-400klm), characterized by: a plurality of sensor apparatuses (720) for sensing temperature measurement values of the battery cells (5001111-500klmn), each of the sensor apparatuses (720) being arranged in such a way that the sensor apparatus can sense the temperature measurement value of one of the battery cells (5001111-500klmn); an apparatus (710, 740) for determining a plurality of average temperature values from the sensed temperature measurement values, each of the determined average temperature values being determined in such a way that the determined average temperature value is associated with one of the battery groups (2001-200k, 30011-300kl, 400111-400klm); and an apparatus (740) for evaluating the plurality of determined average temperature values and, if one of the determined average temperature values exceeds a temperature threshold value, determining that the partial flow associated with the associated battery group (2001-200k, 30011-300kl, 400111-400klm) has a fault. The invention further relates to a battery system, a vehicle, a method, a computer program, and a computer program product.

A safety circuit arrangement for the failsafe monitoring of a movement variable of a moving machine part has a signal input for supplying an encoder signal, with the encoder signal being representative of the movement variable to be monitored. The arrangement also has a reference signal path for supplying a reference signal, a tap connected to the signal input and to the reference signal path in order to provide a superposition signal by superposing the reference signal on the encoder signal, and a measuring unit which is connected to the tap and is designed to detect whether the superposition signal reaches at least one predefined signal level or is within a predefined signal level range.

The invention relates to an electronic control unit (30) for controlling and / or regulating at least one motor vehicle system, comprising at least one integrated microcontroller system (34) which is intended to execute software and has at least two microcontroller units (1, 1') which each execute at least one independent operating system (5, 5'), wherein at least one interface (2) for interchanging information between the microcontroller units (1, 1') is provided, and is also distinguished by the fact that a first microcontroller unit (1) is designed to control and / or regulate a first motor vehicle system, in particular a motor vehicle brake system, and a second microcontroller unit (1') is designed to be able to provide the first microcontroller unit (1) with specifications for controlling and / or regulating the first motor vehicle system using the interface (2). The invention also comprises the use of the electronic control unit.

A shifting device for an automatic transmission of a motor vehicle with a gear-shift lever, which can be moved in an automatic shift track to select gear-shift positions; with a locking mechanism for blocking the adjusting movements of the gear-shift lever into at least one gear-shift position and / or out of at least one gear-shift position; and with a release button arranged on the gear-shift lever to release the blocking action of the locking mechanism. An increased level of functional reliability can be achieved by establishing a drive connection between the release button and two blocking elements, which are arranged redundantly on the gear-shift lever with the freedom to move up and down, that an actuation of the release button produces a synchronous stroke of the two blocking elements, where each of the blocking elements cooperates with an arresting gate comprising gate sections assigned to the gear-shift positions.

A control system for hybrid construction machine includes a regeneration motor configured to be rotated by working fluid introduced from a turning circuit, a pressure detector configured to detect a turning pressure during a turning operation of the turning motor or a braking pressure during a braking operation of the turning motor, a switching valve for turning regeneration configured to perform turning regeneration by introducing the working fluid from the turning circuit to the regeneration motor when being switched to an open position by a pressure of pilot fluid, an electromagnetic proportional pressure reducing valve configured to be switched to an open position and generate a pilot secondary pressure for switching the switching valve for turning regeneration to the open position when a pressure detected by the pressure detector reaches a first set pressure, and a pilot switching valve configured to allow the passage of the pilot fluid for switching the switching valve for turning regeneration to the open position by being switched to an open position when the pressure of the turning circuit reaches a second set pressure.

The invention relates to a dual clutch, a first input piece group including first input friction pieces and a second input piece group including second input friction pieces are arranged on an outer piece support, a first output piece group is connected with a first transmission input shaft on a first inner piece support, the first input piece group and the first output piece group are placed in a relation of a function of transmitting torque through a first activation unit, a second output piece group is arranged on a second inner piece support, the second inner piece support is connected with a second transmission input shaft, the second transmission input shaft is concentric with the first transmission input shaft, the first input piece group and the first output piece group are placed in a relation of a function of transmitting torque through an activation unit, the two activation units are arranged between the input piece groups, a line of action of operating force of the two activation units passes through a diameter area determined by the input piece group and the output piece group, the activation units have common middleware, and the middleware is configured to connect a first outer piece support mounting segment and a second outer piece support mounting segment therebetween.

The invention relates to a dual clutch, a first input piece group including first input friction pieces and a second input piece group including second input friction pieces are arranged on an outer piece support, a first output piece group is connected with a first transmission input shaft on a first inner piece support, the first input piece group and the first output piece group are placed in a relation of a function of transmitting torque through a first activation unit, a second output piece group is arranged on a second inner piece support, the second inner piece support is connected with a second transmission input shaft, the second transmission input shaft is concentric with the first transmission input shaft, the first input piece group and the first output piece group are placed in a relation of a function of transmitting torque through an activation unit, the two activation units are arranged between the input piece groups, a line of action of operating force of the two activation units passes through a diameter area determined by the input piece group and the output piece group, the activation units have common middleware, and the middleware is configured to connect a first outer piece support mounting segment and a second outer piece support mounting segment therebetween.

The invention relates to a dual clutch, a first input piece group including first input friction pieces and a second input piece group including second input friction pieces are arranged on an outer piece support, a first output piece group is connected with a first transmission input shaft on a first inner piece support, the first input piece group and the first output piece group are placed in a relation of a function of transmitting torque through a first activation unit, a second output piece group is arranged on a second inner piece support, the second inner piece support is connected with a second transmission input shaft, the second transmission input shaft is concentric with the first transmission input shaft, the first input piece group and the first output piece group are placed in a relation of a function of transmitting torque through an activation unit, the two activation units are arranged between the input piece groups, a line of action of operating force of the two activation units passes through a diameter area determined by the input piece group and the output piece group, the activation units have common middleware, and the middleware is configured to connect a first outer piece support mounting segment and a second outer piece support mounting segment therebetween.

A wind turbine includes a wind rotor, a generator, and a converter. The generated electric power is fed from the converter by means of a feed to a turbine transformer for delivery to a grid. The feed is designed as a double branch including a power-branched power circuit breaker unit having a first feed line and a second feed line connected in parallel, wherein a separate low-voltage winding of the turbine transformer and a separate power circuit breaker at the connector of the converter is associated with each feed line.

Operating an asynchronous machine includes: closed loop control of a first and a second three-phase winding by a first and a second closed loop control method, respectively. The second closed loop control method supplies a voltage vector to a second inverter device, and changes from the first closed loop control method to a first open loop control method. The first open loop control method includes supplying a first reference current vector to a first filter device, supplying a filtered first reference current vector to a calculation device for calculating an electrical angle, supplying the electrical angle to a first transformation device for transforming a first open loop control deviation vector, transforming a first open loop control deviation vector into a third voltage vector, and supplying the third voltage vector to the first inverter device for the operation of the first three-phase winding.

The invention relates to a device and a method for wirelessly controlling a medical device (30) using a remote control (10, 60, 70, 80). At least one piece of control information is input using at least one first input unit (12) provided via a touchscreen of the remote control (10, 60, 70, 80) in order to activate and / or deactivate a control function for controlling the device (30). At least one piece of release information is input via a second remote control (10, 60, 70, 80) input unit (18, 84) which is independent of the first input unit (12). When the control information is input, the control function is only activated and / or deactivated if the release information is input via the second input unit.

The invention provides a hub driving system with double motors. The hub driving system comprises a first motor, a second motor, an in-wheel speed reducer, a braking device, a hub, a hub bearing, a transverse shaft and a steering knuckle, wherein the first motor and the second motor are respectively used for providing motive power for driving wheels; the in-wheel speed reducer is used for respectively matching the rotating speeds of the first motor and the second motor with that of the wheels, and comprises a speed reducer shell, a first driving gear, a second driving gear and a driven gear; the braking device is used for braking the wheels and comprises first braking calipers, second braking calipers and a braking disk; the hub is used for supporting and connecting the driven gear, the braking disk and the wheels; the hub bearing is used for supporting the hub to rotate and comprises an outer bearing and an inner bearing; the transverse shaft is used for connecting the hub with the inner bearing; the steering knuckle is used for supporting the first motor, the second motor, the first braking calipers, the second braking calipers and the hub bearing, and connected with a suspension frame device and a steering device; and the steering knuckle comprises a front shell and a rear end cover.

A control apparatus of an MDPS system may include: a current supply unit configured to drive a motor by injecting a preset frequency and magnitude of current to the motor; a torque sensor configured to sense a torque of a steering shaft; a hall sensor fault determination unit configured to determine whether a fault has occurred in a hall sensor; a torque signal processing unit configured to process a signal outputted from the torque sensor and calculate the magnitude of a torque signal; an encoder fault determination unit configured to determine whether a fault has occurred in an encoder, using the torque signal outputted from the torque signal processing unit; and a motor control unit configured to acquire a position of a motor rotor according to the determination results of the hall sensor fault determination unit and the encoder fault determination unit, and control the operation of the motor.

In the event of a failure of a fire prevention or extinguishing system, an inertization method reduces the fire risk in an enclosed protected area, where the oxygen content in the area can be maintained on a control concentration that lies below an operating concentration for a certain time period, so that the emergency operation phase is sufficiently long to prevent the ignition and / or re-ignition of combustible materials therein. The control concentration is maintained for an emergency operation period by a redundant secondary source. Alternatively, the control concentration and the operating concentration, while forming a safety margin, can be lowered so far below the design concentration that in the event of a primary source failure, the growth curve of the oxygen content reaches a limit concentration determined for the area in a predefined period, which is sufficiently long to continue to prevent the ignition and / or re-ignition of the combustible materials.