Abstract: The invention concerns a method for monitoring the operating state of a system for positioning variable-geometry members (18) of a turbomachine (10), the members (18) being configured to travel over an operating area comprising a first position P1 and a second position P2, the method comprising the steps of: —(E23) determining a first pivoting speed V1 from the first position P1 to the second position P2; —(E25) determining a second pivoting speed from the second position P2 to the first position P1; and—(E26) determining an anomaly in the operation of the system for positioning the members (18) if the first speed V1 is lower than a first determined speed threshold and/or if the second speed V2 is lower than a second determined speed threshold.

Abstract: Support device intended to be installed on public roads, comprising a support post, characterized in that said post has a cross-section comprising a first and a second branch, the support device further comprising: a first intermediate element which is separate from said post and designed to be secured thereto and a first element for covering said post, which is designed to be fastened between said first and second branches, said first intermediate element and covering element being provided with a complementary first attachment element and a complementary second attachment element, respectively, in order to secure said first covering element to said post, the first and second attachment elements being arranged so that said first covering element, when it is secured to said post, conceals said first intermediate element. Support device comprising a post, for example, for supporting tramway catenaries.

Abstract: The invention relates to a method for controlling a three-phase inverter (3) using a 120° control arrangement associated with a PWM-type control, the inverter (3) being driven by a controller and configured to power a permanent-magnet synchronous motor (5) of a device on board an aircraft. The motor (5) comprises a stator and a rotor that can be rotated relative to the stator when the motor (5) is powered. The inverter (3) comprises three branches (31, 32, 33), each branch comprising two switches (310, 311, 320, 321 and 330, 331) associated with a motor winding sing a 120° control arrangement of a three-phase inverter. The method is characterised in that when one switch on one branch is controlled such as to switch front the on-state to the off-state, the other switch on said branch is controlled such as to be in the on-state for a sufficient amount of time to allow the magnetic discharge of the motor winding associated with said branch.

Abstract: A method for starting a permanent magnet synchronous electric motor comprising a rotor and a stator comprising coils connected respectively to a plurality of phases and a conversion circuit connecting the plurality of phases to a power supply source in order to control the rotation of the rotor of the synchronous motor, the conversion circuit comprising a converter supplying power to a DC-AC converter comprising a plurality of controllable transistors for controlling the rotation of the rotor according to a plurality of successive control phases, the method comprising: ? a step of controlling the transistors of the DC-AC converter according to a control table associating each control phase with a configuration of the transistors so as to determine an acceleration ramp of the rotor of the motor, ? a step of determining an electrical angle A based on a predetermined acceleration ACC, and ? a step of determining a control phase change signal Q if the electrical angle A is greater than a predetermined threshold a

Abstract: A method for starting a permanent magnet synchronous electric motor comprising a rotor and a stator comprising coils connected respectively to a plurality of phases and a conversion circuit connecting the plurality of phases to a power supply source in order to control the rotation of the rotor of the synchronous motor, the conversion circuit comprising a converter supplying power to a DC-AC converter comprising a plurality of controllable transistors for controlling the rotation of the rotor according to a plurality of successive control phases, the method comprising: ? a step of controlling the transistors of the DC-AC converter according to a control table associating each control phase with a configuration of the transistors so as to determine an acceleration ramp of the rotor of the motor, ? a step of determining an electrical angle A based on a predetermined acceleration ACC, and ? a step of determining a control phase change signal Q if the electrical angle A is greater than a predetermined threshold a

Abstract: Support device intended to be installed on public roads, comprising a support post, characterized in that said post has a cross-section comprising a first and a second branch, the support device further comprising: a first intermediate element which is separate from said post and designed to be secured thereto and a first element for covering said post, which is designed to be fastened between said first and second branches, said first intermediate element and covering element being provided with a complementary first attachment element and a complementary second attachment element, respectively, in order to secure said first covering element to said post, the first and second attachment elements being arranged so that said first covering element, when it is secured to said post, conceals said first intermediate element. Support device comprising a post, for example, for supporting tramway catenaries.

Abstract: A method for controlling an inverter configured to power electrically a motor including a stator and a rotor capable of being rotated relative to the stator when the motor is electrically powered, the inverter including a plurality of switches suitable for being controlled to open/close in order to regulate the power supply of the motor, each switch having a predetermined transition time from a closed state to an open state, and a predetermined transition time from the open state to the closed state, wherein the method includes the step of not generating the command to open and close the switches when this violates the predetermined transition times from a closed state to an open state, and the predetermined transition times from the open state to the closed state.

Abstract: A bond sublayer is applied to a part and a ceramic layer is deposited on the bond sublayer by plasma spraying. The ceramic layer is then sintered.

Abstract: The invention relates to a method for controlling a three-phase inverter (3) using a 120° control arrangement associated with a PWM-type control, the inverter (3) being driven by a controller and configured to power a permanent-magnet synchronous motor (5) of a device on board an aircraft. The motor (5) comprises a stator and a rotor that can be rotated relative to the stator when the motor (5) is powered. The inverter (3) comprises three branches (31, 32, 33), each branch comprising two switches (310, 311, 320, 321 and 330, 331) associated with a motor winding sing a 120° control arrangement of a three-phase inverter. The method is characterised in that when one switch on one branch is controlled such as to switch front the on-state to the off-state, the other switch on said branch is controlled such as to be in the on-state for a sufficient amount of time to allow the magnetic discharge of the motor winding associated with said branch.

Abstract: A method for controlling an inverter configured to power electrically a motor including a stator and a rotor capable of being rotated relative to the stator when the motor is electrically powered, the inverter including a plurality of switches suitable for being controlled to open/close in order to regulate the power supply of the motor, each switch having a predetermined transition time from a closed state to an open state, and a predetermined transition time from the open state to the closed state, wherein the method includes the step of not generating the command to open and close the switches when this violates the predetermined transition times from a closed state to an open state, and the predetermined transition times from the open state to the closed state.

Abstract: A vehicle has a frame and left and right suspension assemblies connected to the frame. Each suspension assembly has a suspension support connected to the frame; a lower control arm having an inner end pivotally connected to the suspension support at two longitudinally spaced positions; an upper control arm having an inner end pivotally connected 5 to the suspension support at two longitudinally spaces positions; a knuckle pivotally connected to outer ends of the lower and outer control arms; and a shock absorber having an upper end pivotally connected to the suspension support and a lower end pivotally connected to one of the lower and upper control arms. A sway bar has ends connected to two of the control arms and is pivotally connected to the suspension supports. Wheels are rotationally 10 connected to the knuckles.

Abstract: A vehicle has a front and rear left wheel, and a front and rear right wheel. A left suspension operatively connects one of the left wheels to the left suspension support. A right suspension operatively connects one of the right wheels to the right suspension support. The one of the right front wheel and the right rear wheel is the right front wheel when the one of the left front wheel and the left rear wheel is the left front wheel. A driver seat and at least one passenger seat are disposed side-by-side. A rack and pinion assembly (RPA) is operatively connected to the one of the left front wheel and the left rear wheel and to the one of the right front wheel and the right rear wheel. The RPA is connected to both suspension supports. A steering wheel is operatively connected to the RPA.

Abstract: A vehicle has a frame and left and right suspension assemblies connected to the frame. Each suspension assembly has a suspension support connected to the frame; a lower control arm having an inner end pivotally connected to the suspension support at two longitudinally spaced positions; an upper control arm having an inner end pivotally connected 5 to the suspension support at two longitudinally spaces positions; a knuckle pivotally connected to outer ends of the lower and outer control arms; and a shock absorber having an upper end pivotally connected to the suspension support and a lower end pivotally connected to one of the lower and upper control arms. A sway bar has ends connected to two of the control arms and is pivotally connected to the suspension supports. Wheels are rotationally 10 connected to the knuckles.

Abstract: A vehicle frame assembly has a first frame member defining a first frame member axis and a slot and having a first frame member connection portion adjacent the slot. A second frame member defining a second frame member axis has a projection and a second frame member connection portion adjacent thereto. The projection is received in the slot. The first frame member connection portion is connected to the second frame member connection portion to form a connection region in which the second frame member axis is disposed at a non-zero angle to the first frame member axis in the connection region. The method of assembling the frame includes inserting the projection into the slot, contacting the connection portions to each other to form the connection region with the members being positioned for connection with their axes disposed at a non-zero angle to each other, and connecting the connection portions.

Abstract: A vehicle has a front and rear left wheel, and a front and rear right wheel. A left suspension operatively connects one of the left wheels to the left suspension support. A right suspension operatively connects one of the right wheels to the right suspension support. The one of the right front wheel and the right rear wheel is the right front wheel when the one of the left front wheel and the left rear wheel is the left front wheel. A driver seat and at least one passenger seat are disposed side-by-side. A rack and pinion assembly (RPA) is operatively connected to the one of the left front wheel and the left rear wheel and to the one of the right front wheel and the right rear wheel. The RPA is connected to both suspension supports. A steering wheel is operatively connected to the RPA.

Abstract: A vehicle frame assembly has a first frame member defining a first frame member axis and a slot and having a first frame member connection portion adjacent the slot. A second frame member defining a second frame member axis has a projection and a second frame member connection portion adjacent thereto. The projection is received in the slot. The first frame member connection portion is connected to the second frame member connection portion to form a connection region in which the second frame member axis is disposed at a non-zero angle to the first frame member axis in the connection region. The method of assembling the frame includes inserting the projection into the slot, contacting the connection portions to each other to form the connection region with the members being positioned for connection with their axes disposed at a non-zero angle to each other, and connecting the connection portions.

Abstract: A YSZ-type ceramic layer is deposited on a tie sublayer by thermal spraying using a plasma arc torch, said tie sublayer being itself deposited on the part to be protected. A sintering post treatment is carried out by means of a sweep of the ceramic layer by the beam of the plasma arc torch, the temperature at the point of impact of the beam at the surface of the ceramic layer (C) being, during this sweep, between 1300° C. and 1700° C.