87results about How to "Increased fail-safety" patented technology

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.

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 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).

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 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.

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.

The invention relates to a shift-by-wire system (1) for a motor vehicle, having a transmission control device (2) and an actuating assembly (3) that is operatively connected to the transmission control device via an electric connection (7). The actuating assembly (3) is designed to generate a signal dependent on a driver request, which corresponds to a selector lever position, using a selector lever and at least one sensor (4c). The actuating assembly (3) further has a control unit (5), by means of which information based on the signal is communicated via the electric connection (7) to the transmission control device (2). The transmission control device (2) remotely monitors the control unit (5) in the actuating assembly (3) via the electric connection (7), said electric connection (7) being a common communication line for the signal-based information and the remote monitoring.

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.