346results about "Power driven steering" patented technology

A system for data collection related to a fluid conveyance environment includes a data acquisition circuit comprising inputs and outputs; input sensors to provide sensor data values, coupled to a component in the fluid conveyance environment; and a processor comprising the data acquisition circuit. The processor is configured to determine a data storage profile; responsive to the data storage profile, configure the data acquisition circuit to selectively couple at least one of the inputs to at least one of the outputs; interpret the at least one of the sensor data values; store at least a portion of the at least one of the sensor data values in response to the data storage profile; analyze a set of the sensor data values and determine a data quality parameter; and adjust at least one of the data storage profile and a data collection routine in response to the data quality parameter.

Methods and systems for a monitoring system for data collection in an industrial environment including a data collector communicatively coupled to a plurality of input channels connected to data collection points operationally coupled to at least one industrial component in at least one of an industrial boiler system or industrial pipeline system; a data storage structured to store a library of stored noise patterns associated with operation of the at least one industrial component; a data acquisition circuit structured to interpret a plurality of detection values from the collected data; and a data analysis circuit structured to: analyze the collected data, determine a measured noise pattern for the at least one industrial component, and compare the measured noise pattern to the library of stored noise patterns to identify a changed condition of the at least one industrial component.

Provided are a vehicle control method, a multi-purpose vehicle, and a garden work vehicle. The multi-purpose vehicle includes a drive mechanism, a control mechanism, and an auxiliary control mechanism. The auxiliary control mechanism includes: a control state sensing component, configured to determine a control state of a user with respect to the control mechanism; a traveling state sensing component, configured to determine the traveling state of the multi-purpose vehicle, the traveling state including a straight-line traveling state and a non-straight-line traveling state; and a calibration controller component, configured to determine that the multi-purpose vehicle is traveling abnormally in response to a mismatch between the traveling state and the control state. The calibration controller component is further configured to adjust, in response to determining that the multi-purpose vehicle is traveling abnormally, the operating state of the drive mechanism to match the traveling state with the control state.

According to several aspects, a method for controlling an electric vehicle is provided. The method may include adjusting an operation of one or more electric motors of the electric vehicle to induce a loss of traction of a first wheel of the electric vehicle on a first side of the electric vehicle. The method further may include adjusting an operation of an electric steering system of the electric vehicle to induce a yaw motion of the electric vehicle. A direction of the yaw motion is away from the first side of the electric vehicle.

Selectively powered caster wheels for a maintenance apparatus are described. A motor attached to the caster wheel(s) can be selectively powered to apply force to the caster wheel. This force can be selected to overcome another force sensed at the maintenance apparatus, or to steer the maintenance apparatus on a desired course or direction. The caster wheels can be configured to orient along a direction of motion of the maintenance apparatus, in response to power from the motor or in response to the motion of the maintenance apparatus itself. In further embodiments, the motor(s) can be selectively activated or deactivated by an operator of the maintenance apparatus, in response to a remote control signal, or in response to an onboard or offboard controller of the apparatus.

Methods and systems for a data marketplace in a fluid conveyance device includes a self-organizing data marketplace. The self-organizing data marketplace includes at least one data collector and at least one corresponding fluid conveyance device in an industrial environment, wherein the at least one data collector is structured to collect detection values from the fluid conveyance device; a data storage structured to store a data pool comprising at least a portion of the detection values; a data marketplace structured to self-organize the data pool; and a transaction system structured to interpret a user data request, and to selectively provide a portion of the self-organized data pool to a user in response to the user data request.

A wheel assembly structure of a vehicle may include a wheel on which a tire of a vehicle is mounted, a rotor housing connected to the wheel to rotate with the wheel, a stator housing fixed to the vehicle, and configured to rotate the rotor housing by application of current, a wheel hub extending at a central portion of the wheel toward the vehicle inner side, a knuckle having a first end rotatably connected to the wheel hub, and a second end extending toward an inner side of the vehicle, a shock absorber connected to a second end of the knuckle, and configured to alleviate shock between the stator housing and the wheel, and an assembly bracket connected to the stator housing, coupled to an upper end and a lower end of the shock absorber, protruding toward the inner side of the vehicle.

To provide a drive module capable of efficiently performing attitude control of a moving body, and a moving body including the same.SOLUTION: According to an aspect of the present invention, there is provided a driving module including a wheel configured to rotate about a first rotation axis that is a virtual straight line extending in a first direction, a first frame having a fixed height relative to the wheel, a second frame configured to move relative to the first frame, a link unit configured to connect the first frame and the second frame, and a posture adjuster configured to adjust a posture of the driving module by controlling a movement of the link unit to change a position of the second frame relative to the first frame.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of robots, and discloses a robot wheel foot which comprises a large arm, a small arm and a walking wheel, a connecting base is arranged at the upper end of the large arm, a first motor is arranged on one side of the connecting base, a driving assembly is arranged between the large arm and the small arm, and a second motor is arranged on the other side of the connecting base. The shaft end of the walking wheel is connected with a walking power source, the lower end of the small arm is provided with a steering mechanism used for adjusting the walking angle of the walking wheel, and the walking power source is connected with the steering mechanism. The four-wheel robot walking mechanism comprises a robot support and four sets of robot wheel feet, the four sets of robot wheel feet are installed at the front end and the rear end of the two sides of the robot support through connecting bases, and every two adjacent sets of robot wheel feet are symmetrically distributed. The utility model has the beneficial effects of compact and stable structure, stable gravity center and flexible steering.

Disclosed is a corner module apparatus for a vehicle. The corner module includes a knuckle coupled to a wheel bearing rotatably supporting a wheel, a drive motor, configured to generate a drive power, spaced a distance away from the wheel, a transfer shaft, disposed between the wheel and the drive motor, configured to transfer the drive power generated from the drive motor, a suspension connected to the knuckle and configured to absorb shock transferred from a road surface, and a steering system configured to support the drive motor and the suspension and to adjust a steering wheel of the wheel.

Steering device (1) for steering a vehicle, comprising: an extendable steering rod (2) comprising a first and a second coaxially aligned partial rod (6, 7), characterized in that the first partial rod (6) is at least partially hollow and the second partial rod (7) is arranged at least partially axially displaceable within the first partial rod (6), wherein the steering rod (2) can be coupled to each of its axial end faces (8, 9) with a wheel (24, 26) of the vehicle; a first non-self-locking actuator (3) configured to displace at least the first section rod (6) in the axial direction; and a second self-locking actuator (4) configured to displace the second section rod (7) relative to the first section rod (6) in an axial direction; and a locking device (5) which is designed to fix the first actuator (3) in a predetermined position.

A computer-implemented method for determining a robust steering control of a steering system controller is disclosed, comprising: determining a solution to a system of statements comprising an equals sign, a greater-than sign, a greater-than or equal-to sign, a less-than sign and / or a less-than or equal-to sign, wherein at least a first part of the statements can be written equivalently or substantially equivalently as a first symmetric matrix greater than or equal to zero, wherein the first symmetric matrix is ​​based on system parameters of a system of one or more differential equations for modeling a steering of the steering system or their discretization, wherein the first symmetric matrix is ​​based on one or more perturbation parameters acting on the system of one or more differential equations; and calculating the steering control based on the solution.A further method for manufacturing and / or dataing a controller of a steering system is disclosed, comprising calculating the steering control; and adjusting the controller based on the steering control, in particular wherein the steering control is adjusted in the controller.

A drive device according to the present disclosure includes: a motor including a motor main body having a rotor and two sets of windings, a frame configured to accommodate the motor main body, and a housing fitted to the frame; and a control unit attached to the motor and configured to control a current supplied to the two sets of windings, in which the control unit includes a wiring board having a first surface facing the housing and a second surface opposite to the first surface, a first inverter circuit and a second inverter circuit configured to independently supply a current to each of the two sets of windings, and a CPU configured to control the first inverter circuit and the second inverter circuit, a first switching element constituting the first inverter circuit is disposed on the first surface of the wiring board, and a second switching element constituting the second inverter circuit is disposed on the second surface of the wiring board.

The present application relates to a motor control device, and a steering control system. The motor control device (80) includes: a first inverter (120) connected to a first winding group (180) and a first power supply unit (191); a second inverter (220) connected to a second winding group (280) and a second power supply unit (291); a first control unit (170) configured to calculate a first required voltage to be output to the first inverter based on a command value of a torque of a motor (10), control the first inverter based on the first required voltage in a case where the first required voltage is not higher than a first upper limit voltage, and control the first inverter based on a voltage obtained by reducing the first required voltage in a case where the first required voltage is higher than the first upper limit voltage; and a second control unit (270) configured to calculate a second required voltage to be output to the second inverter based on the command value, and control the second inverter based on the second required voltage.

The invention relates to a method for controlling a redundant actuator (20) having two partial actuators, in particular a motor having two separate winding sets, by means of a control device (10), wherein a first partial actuator is connected to a first actuator terminal (T3) of the control device (10), and a second partial actuator is connected to a second actuator terminal (T4) of the control device (10). The control device (10) comprises a first, a second, and a third converter module (11, 12, 13), each of which has a converter (U1, U2, U3). In a first operating state (S1), the first actuator terminal (T3) is connected to the converter (U1) of the first converter module (11), the second actuator terminal (T4) is connected to the converter (U2) of the second converter module (12), and the actuator terminals (T3, T4) are not connected to the converter (U3) of the third converter module (13), which is in a stand-by operating state. A fault in the first converter module (11) is identified, and the control device (10) transitions to a fault operating state (S2) in which the first actuator terminal (T3) is insulated from the converters (U1, U2, U3) of the first, second, and third converter module (11, 12, 12) In the fault operating state (S2), a handshake communication between the first, second, and third converter module (11, 12, 13) of the control device (10) is carried out, and by means of the handshake communication, it is negotiated which of the converter(s) (U1, U2, U3) of the converter modules (11, 12, 13) is or are to be connected to the actuator terminals (T3, T4) of the control device (10).

Platforms and methods for improving correspondence between sensor data and haptic output are disclosed. A platform may include a haptic user device and a data collection system to collect sensor data. The haptic user interface may provide different types of haptic stimulation to a user based on the sensor data. The data collection system has a cognitive input selection system with machine learning to improve the effectiveness of the haptic output to the user. The machine learning is trained on feedback of user behavior. The machine learning improves the effectiveness of the haptic output by determining which type of haptic simulation to provide such that the haptic output logically corresponds to the sensor data, or by determining to vary one or more of a timing, an intensity level, or a duration of the haptic output based on the sensor data.

A motor control device includes: a manual steering command value calculation unit that calculates a manual steering command value using torsion bar torque; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value for driving assistance; and a control unit that controls drive of an electric motor based on the integrated angle command value. The manual steering command value calculation unit is configured to, in a driving assistance mode, calculate the manual steering command value using an equation of motion of a reference model of the steering device. The manual steering command value calculation unit calculates the manual steering command value using, as a virtual damper reaction force in the equation of motion, a virtual damper reaction force obtained by adding a virtual damper reaction force according to a derivative of the automatic steering command value to a virtual damper reaction force according to a derivative of the manual steering command value.

Disclosed is a drive system for a mobile robot. The drive system comprises: a structural frame; a driving module comprising: at least two driving wheels; and at least two driving motors, wherein each individual one of the at least two driving motors comprises first sensor(s) configured to sense an individual driving wheel rotation; and a steering module comprising one of: a motor, a clutch actuator, wherein the one of: the motor, the clutch actuator comprises second sensor(s) configured to sense an individual driving wheel rotation. When the drive system is in use, the steering module is disengaged from the driving module to drive the mobile robot in a steer driving mode, or the steering module is engaged with the driving module to drive the mobile robot in a differential driving mode.

Device (110) and method for controlling a steering wheel actuator (106) of a steering system (102) for creating a steering feel, wherein an actual steering speed and a target steering speed are provided for controlling the steering speed of the steering system (102), a control torque for the steering wheel actuator (106) is determined on the basis of a difference between the actual steering speed and the target steering speed, and the steering wheel actuator (106) is controlled to apply the control torque. Vehicle (100) comprising the device (110).

To easily achieve at the same time both responsiveness of control of an electric power steering device at the time of regular steering and suppression of influence of noise while a steering system is in the steering holding state. An electric power steering device including: a motor (20) configured to generate a steering assist force to be provided to a steering system of a vehicle; a current command value calculation unit (40) configured to calculate a current command value to control driving current of the motor (20); a current control unit (45) configured to output a first voltage command value, based on current deviation of a measured value of driving current of the motor with respect to the current command value; a first gain setting unit (43) configured to set a first gain depending on rotational velocity of the motor (20) ; a disturbance voltage suppression unit (47) configured to calculate a third voltage command value by adding output from a first delay element to a second voltage command value obtained by limiting the first voltage command value by the first gain and also input the third voltage command value to the first delay element; and a driving circuit (48, 49) configured to drive the motor, based on the third voltage command value.

To provide a control method of a work vehicle, a work vehicle control program, a work vehicle control system and a work system that enable appropriate determination of an override state.SOLUTION: A control method of a work vehicle 10 is a control method of a work vehicle 10 having an automatic steering mode for automatically steering a steered wheel using a motor 421. The control method includes, in the automatic steering mode, controlling the motor 421, determining whether the work vehicle is in an override state on the basis of a determination condition related to torque generated in the motor 421, and changing the determination condition.SELECTED DRAWING: Figure 4

Provided is a driving support device, a driving support method, and a storage medium that are capable of performing driving support in accordance with the driving skills of a driver. The driving support device includes: a track derivation unit that derives a reference track in a prescribed section that conforms to a pre-set curve shape; a frequency derivation unit that derives a first frequency determined in accordance with a frequency component of a steering angle of a vehicle in a case where the vehicle passes through the prescribed section along the reference track; a detection value acquisition unit that acquires a detection value of the steering angle; a component derivation unit that derives the frequency component of the steering angle acquired in the prescribed section in a case where the vehicle passes through the prescribed section; and a driving support unit that decides an action of driving support performed on a driver of the vehicle based on a comparison result between an accumulated value of the frequency component in a first frequency band of the first frequency or more and the second frequency or less and a first reference value.

To recover a regenerative current without requiring an additional component.SOLUTION: A method includes a first determination step (E1) of determining a d-axis current intermediate value Idstat and a q-axis current intermediate value Iqstat of an AC supply current of a motor, a second determination step (E2) of determining a d-axis current target value Idcible and a q-axis current target value Iqcible, and a drive step (EP) of driving the at least one inverter by a microcontroller on the basis of the d-axis current target value Idcible and the q-axis current target value Iqcible.SELECTED DRAWING: Figure 2

A controller for controlling the operation of a motor vehicle includes an electronic control unit that ascertains a target trajectory for a turning maneuver of the motor vehicle, ascertains the curve of the radius and / or the curvature of the curve of the target trajectory based on the target trajectory, and controls the steering of the motor vehicle based on the ascertained curve of the radius and / or the curvature of the curve. The steering is controlled via a continuous control of the steering ratio and / or the setting of a fixed value for the steering ratio.

A power supply circuit 70 includes a power conversion circuit (70). A terminal voltage of a first direct-current voltage source (60) and a terminal voltage of a second direct-current voltage source (82) are applied to the power conversion circuit, and the power conversion circuit includes a first inductor (72a), a second inductor (72b), and switching elements (SW1 to SW4). The power supply circuit includes an OR circuit (80). The OR circuit is a circuit that outputs at least one of electric power of the first direct-current voltage source and electric power of the second direct-current voltage source to a control system electrical load.

A method for influencing the steering characteristics of an agricultural tractor is disclosed. The method comprises associating a steering characteristic with a respective parameter set of a plurality of predetermined parameter sets. Detecting an instantaneous working condition of the agricultural tractor by a control unit. Selecting a parameter set from the plurality of predetermined parameter sets based on the detected instantaneous working condition; and activating an actuating device based on the selected parameter set to adapt a steering characteristic to the detected instantaneous working condition.

The invention relates to an electric motor (2) for a motor vehicle, in particular for a braking or steering system, comprising a motor housing (4) with a housing cover (10), and a stator (6) inserted into the motor housing (4) with an annular switching unit (8) which is arranged on an end face facing the housing cover (10), wherein at least one spacer element (30, 30', 30", 30‴) is arranged on the switching unit (8) axially extending upwards in the direction of the housing cover (10), wherein the spacer element (30, 30', 30", 30‴) is elastically designed at least in the radial direction (R) and / or tangential direction (T).

A method of controlling a dual-winding synchronous motor includes determining positive and negative virtual half-motor current commands based on first and second motor current commands associated with first and second winding combinations, calculating positive and negative final voltage commands based on the virtual half-motor current commands and using first and second sets of gain factors, and commanding an inverter to apply output voltages to each of the two winding combinations based on the final voltage commands, thereby causing output currents to be generated in the winding combinations. The output currents each have a d-axis component and a q-axis component, and at least one of the first and second sets of gain factors is configured to decouple variations in the d-axis and q-axis components of a first output current from the d-axis and q-axis components of a second output current.

An electro-hydraulic steering system (2) for a vehicle has a control unit (24) configured to carry out a method for limiting the steering angle of the electro-hydraulic steering system (2) by method steps for estimating a driving speed of the vehicle (1), determining a maximum steering angle threshold (αmax) in dependence of the estimated driving speed of the vehicle (1), determining an automatic steering angle (αG) in response to an automatic steering demand, controlling a fluid flow provided by an electro-hydraulic valve (29) of the electro-hydraulic steering system (2) for controlling a hydraulic steering actuator (14, 15) connected with a steered wheel (17, 19) to adjust a steering angle (α18) of the steered wheel (17, 19) according to the automatic steering angle (αG) and limiting the automatic steering angle (αG) to the maximum steering angle threshold (αmax).