Abstract: A power supply device includes a combination of one power supply module of a plurality of power supply modules having different power supply performances and one controller of a plurality of controllers having different functions, which are selectively combined. Each of the plurality of power supply modules includes a power supply module side connection portion common to the plurality of power supply modules, and each of the plurality of controllers includes a controller side connection portion common to the plurality of controllers and connectable to the power supply module side connection portion, to allow the one power supply module and the one controller are selectively combined.

Abstract: A steering system includes a mechanism configured to turn a steer wheel of a vehicle, a motor configured to generate driving force that is applied to the mechanism, and a controller configured to control the motor according to a steering status. The controller includes a limiting control circuit configured to limit a current that is supplied to the motor to a limiting value, a determining circuit configured to determine whether the steer wheel is in contact with an obstacle by using at least a comparison between a value of the current that is supplied to the motor and a threshold, and a threshold computing circuit configured to compute the threshold that is used by the determining circuit, the threshold computing circuit being configured to compute a value less than the limiting value according to the limiting value as the threshold.

Abstract: A vane pump that includes a first communication passage that extends along an outer periphery of the cam ring and that guides a fluid that has not flowed into the first suction port from the first inflow passage to the second suction port; a second communication passage that extends along the outer periphery of the cam ring on an opposite side of the first communication passage with respect to the rotor and that guides a fluid that has not flowed into the second suction port from the second inflow passage to the first suction port; and a rectifying portion that guides the fluid from the second inflow passage so that the fluid flows into the second suction port along the outer periphery of the cam ring.

Abstract: Provided is a steering system including a controller that controls an electric motor. The controller has a combined friction torque estimation unit that estimates a combined friction torque combining friction torques occurring in respective transmission devices including a first transmission device. The combined friction torque estimation unit has a slipping speed calculation part that calculates a slipping speed of the first transmission device based on an angular speed of the electric motor, a friction coefficient calculation part that calculates a friction coefficient of the first transmission device based on the slipping speed, a tooth flank normal force calculation part that calculates a normal force acting on a tooth flank of the first transmission device, and a friction torque calculation part that calculates the combined friction torque using the friction coefficient, the tooth flank normal force, and one or more preset correction factors.

Abstract: A steering computer for a vehicle includes: at least one printed circuit positioned inside a computer casing, the computer casing including on an external surface at least one joining contact, at least one connection box provided with at least one connector, the at least one connector being connected to at least one joining contact, characterized in that the at least one connection box is fixed to the computer casing by means of at least one fixing element, said at least one fixing element being at least partially embedded in a resin.

Abstract: In a steering system including a steering operation mechanism, a second actuator, a steering angle sensor, a steering torque sensor, and a steering operation control device and a control method for the steering system, only a drive assist target steered angle (first target steered angle) is reflected in a final target steered angle when a torque sensor value (actual steering torque) detected by the steering torque sensor is equal to or less than an intervention threshold. When the magnitude of the torque sensor value is more than the intervention threshold, the rate of reflection (distribution ratio) of a driver target steered angle (second target steered angle) in the final target steered angle is raised as the torque sensor value is increased, and the rate of reflection of the driver target steered angle in the final target steered angle is lowered as the magnitude of the torque sensor value is decreased.

Abstract: There is provided a rotary table device including: a rotary table; a center shaft erected toward the rotary table; a housing including an inner peripheral surface having a circular cross section over a predetermined range along a rotation axis; a center sleeve including an outer peripheral surface having a circular cross section corresponding to the inner peripheral surface, and the outer peripheral surface being concentric with the inner peripheral surface; a plurality of recesses formed in at least one of the inner circumferential surface and the outer circumferential surface; a plurality of O-rings disposed to be sandwiched between the inner peripheral surface and the outer peripheral surface; an in-housing fluid flow path formed inside the housing; and a plurality of in-sleeve fluid flow paths formed inside the center sleeve.

Abstract: A lubricant supply device includes a porous body including a first porous portion and a second porous portion in contact with the first porous portion, the porous body being impregnated with a lubricant. A penetration depth of the lubricant in the second porous portion is larger than a penetration depth of the lubricant in the first porous portion.

Abstract: A manual steering command value generation unit generates a manual steering command value, using a steering torque. A summed angle command value calculation unit calculates a summed angle command value, by adding the manual steering command value to an automatic steering command value. A control unit performs angle control of an electric motor, based on the summed angle command value. The control unit includes a basic torque command value calculation unit that calculates a basic torque command value, a disturbance torque estimation unit that estimates a disturbance torque other than a motor torque of the electric motor applied to an object driven by the electric motor, and a disturbance torque compensation unit that corrects the basic torque command value, based on the disturbance torque. The manual steering command value generation unit uses an estimated torque calculated based on the disturbance torque, when generating the manual steering command value.

Abstract: A steering system includes an upper jacket, a lower jacket, a support, a lock mechanism, and a shock absorber. The support supports the lower jacket. The lock mechanism switches a restriction of a telescopic adjustment and a termination of the restriction. The upper jacket includes a protruding stopper configured to regulate a position of the upper jacket at one end of a telescopic stroke range. The lock mechanism includes an opening and closing portion configured to enter a path of the stopper while the restriction of the telescopic adjustment is terminated, and configured to open the path of the stopper while the telescopic adjustment is restricted.

Abstract: A method for a power steering system of a motor vehicle delivering, to the steering, a torque controlled by a computer for compensating for trajectory deviation of the vehicle when this vehicle is braking, which, from a request to activate the method while braking, in a first step, calculates a rough correction torque taking into account the speed of the vehicle, the yaw of this vehicle, and a signal representing the force applied by the steering to the steered wheels.

Abstract: A machine tool includes a workpiece holder, a tool holder holding working tools that includes a hob cutter used in a rough machining and a skiving cutter used in a finish machining, a tool magazine, a tool replacing device replacing one of the working tools mounted on the tool holder with the other of working tools housed in the tool magazine, a rough machining controlling section performing the rough machining on the workpiece, a tool measuring device measuring a position of a blade in a rotation direction of the skiving cutter, an angle correcting section correcting a rotation angle of the skiving cutter based on a result measured by the tool measuring device, and placing a tooth space formed in the workpiece and an edge tip of the blade in a position corresponding to each other, and a finish machining controlling section by which workpiece is finish machined.

Abstract: A steering system includes: a steering member; a steering operation mechanism; a reaction force motor; a steering motor; a steering torque sensor; a command value setting circuit; a reaction force command value calculation circuit configured to calculate a reaction force command value; a steering operation command value calculation circuit configured to calculate a steering operation command value based on a steering operation steering angle command value and a manual steering angle command value; a reaction force control circuit configured to cause a rotation angle of the reaction force motor to follow the reaction force command value; and a steered angle control circuit configured to cause a rotation angle of the steering motor to follow the steering operation command value.

Abstract: A power steering system including a steering wheel, a return function to automatically return the steering wheel to a given reference position, and includes a function for calculating a return-speed setpoint which calculates a steering wheel speed setpoint from the steering wheel position error differentiating between the effective instantaneous position of the steering wheel and the reference position, then a function for calculating the return assistance, defining from the steering wheel speed error which is the difference between the effective speed of the steering wheel and the steering wheel speed setpoint, a return assistance setpoint, the system including a dynamic saturation function defining at least one saturation threshold, that the dynamic saturation function sets according to the value of the steering wheel speed setpoint, and the dynamic saturation function applies to clip the peaks of the return assistance setpoint calculation to confine the return assistance setpoint to an authorized domain.

Abstract: A motor control device includes: a second setting unit configured to set an armature current command value and a current phase angle command value based on a rotation speed and a motor torque command value; and a current vector setting unit configured to set a d-axis current command value and a q-axis current command value based on the armature current command value and the current phase angle command value. The second setting unit is configured to set the armature current command value and the current phase angle command value such that an armature current vector which is set based on the d-axis current command value and the q-axis current command value is included in an area surrounded by an armature current vector locus in maximum torque/current control and a vertical axis in a d-q coordinate system.

Abstract: A steering device includes: a first moving unit that moves in an axial direction along with a shaft member to which an operating member is connected; a second moving unit; a holding unit; a first screw mechanism; a second screw mechanism; a driving unit; and a transmission mechanism that transmits driving force of the driving unit to the first screw mechanism and the second screw mechanism. One of the first screw mechanism and the second screw mechanism is provided so as to operate in a forward direction when the operating member moves between a retraction region and an operation region, and reverse efficiency of that one screw mechanism is set such that when the operating member is subjected to an external force directed toward the retraction region, that one screw mechanism does not operate in a reverse direction.

Abstract: A sensor device includes a main driving gear, driven gears, an biasing member configured to bias the driven gears toward the main driving gear, a support member configured to support the biasing member, and a sensor configured to generate an electrical signal based on rotation of the driven gears. In a force applied when the biasing member biases the driven gears, assuming that a direction orthogonal to a tangent line at a point of action of the force is set as a first direction, the first direction is different from a second direction.

Abstract: A method for modulating an assistance function application of an assisted steering system in a vehicle, the vehicle including at least two wheels, a steering wheel and an assistance motor applying an assistance torque on a rack, the method implementing a step of evaluating an application gain of the assistance function, a step of estimating the assistance torque associated with the assistance function and a step of multiplying the assistance torque associated with the assistance function and the application gain, characterised in that the step of evaluating the application gain includes a first phase of determining a first gain depending on a yaw speed and an angle of the steering wheel.

Abstract: Steering column for a motor vehicle including two telescopic drive shafts linked in rotation, allowing an axial sliding of a front shaft supporting a steering wheel, successively over, starting from the most forward position, a first range of depth adjustment of the position of this steering wheel, then a second damping range used in the case of an accident for damping an impact of the driver on the steering wheel, this column including an electric motorization for controlling the sliding, and an anti-theft blocking device blocking the rotation of one of the shafts, which is automatically engaged for an axial position for blocking the front shaft given by the motorization located in the second damping range.