An inspection device includes a first data storage unit configured to store a first data which is time series according to a state of an inspection object, a second data generation unit configured to generate second data, which is a spectrogram including a first frequency component, a time component, and an amplitude component by performing short-time Fourier transform on the first data, a third data generation unit configured to generate third data including the first frequency component, a second frequency component, and the amplitude component by performing Fourier transform on time-amplitude data for each first frequency component in the second data, respectively, and a determination unit configured to determine the state of the inspection object based on the third data.

A control device includes a processor. The processor is configured to perform a route acquisition process for acquiring route information indicating a target route of a vehicle. The processor is configured to perform a behavior optimization process for correcting, based on at least one of a plurality of state quantities indicating a behavior of the vehicle during traveling, each of a left turning command value and a right turning command value such that the behavior of the vehicle becomes a target behavior. The processor is configured to perform a locus stabilization process for correcting, based on at least one of the state quantities indicating the behavior of the vehicle during traveling, a steering command value such that the vehicle travels on the target route.

A housing for an electric power steering device that has an electric motor, a speed reduction mechanism, a ball screw mechanism, and a rack bar. The housing has a first housing having a first end portion covering a part of the rack bar and a second end portion with a portion accommodating at least a part of the speed reduction mechanism. The first housing includes a rack bar insertion hole portion; an electric motor shaft insertion hole portion having a cylindrical shape on a radially outer side of the rack bar insertion hole portion, through which an electric motor shaft is inserted; and a fastening portion having an annular shape overlapping with an inner peripheral surface of the electric motor shaft insertion hole portion along the longitudinal direction of the rack bar when an axis extending in the rack bar longitudinal direction is viewed from a radially outer side.

A method is for operating a steering system, more particularly a steer-by-wire steering system. The steering system includes at least one wheel steering angle control element which is provided to influence and/or change a wheel steering angle of at least one vehicle wheel depending on a target specification signal correlated with a steering specification. The wheel steering angle control element has a limited maximum wheel steering angle control range for changing the wheel steering angle, and the target specification signal is limited by a saturation to the maximum wheel steering angle control range. The target specification signal is modified in such a manner that the, more particularly modified, target specification signal has a constant and differentiable curve at least in an edge range of the wheel steering angle control range.

An automatic steering system for an agricultural vehicle includes a controller operably coupled to a steering sensor configured to provide a feedback signal that includes vehicle steering information for automatically controlling the steering device. The controller is configured to receive the feedback signal and current steering information from the steering sensor and determine desired steering rate information based on the current steering information and a desired steering position. The controller is also configured to compare a current steering rate to the desired steering rate information and disengage automatic steering control based on comparing the current steering rate to the desired steering rate information. Automatic steering systems including assisted steering devices and methods for steering an agricultural vehicle are also provided.

An automatic steering system for an agricultural vehicle includes a controller operably coupled to a steering sensor configured to provide a feedback signal that includes vehicle steering information for automatically controlling the steering device. The controller is configured to receive the feedback signal and current steering information from the steering sensor and determine desired steering rate information based on the current steering information and a desired steering position. The controller is also configured to compare a current steering rate to the desired steering rate information and disengage automatic steering control based on comparing the current steering rate to the desired steering rate information. Automatic steering systems including assisted steering devices and methods for steering an agricultural vehicle are also provided.

The present invention can provide a motor including a housing, a stator disposed in the housing, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the stator includes a stator core in contact with the housing, the stator core includes a first region and a second region having different outer diameters, the housing includes a third region and a fourth region having different inner diameters, the outer diameter of the first region is smaller than the outer diameter of the second region, the inner diameter of the third region is greater than the inner diameter of the fourth region, and the first region and the third region are disposed to overlap in a radial direction of the shaft.

A resolver body including a rotor having Nx (Nx is a natural number) salient poles, a stator facing the rotor and having Ns (Ns is an integer equal to or larger than 3) teeth arranged in a circumferential direction, and an excitation winding and two phases of output windings wound on each tooth; and an excitation circuit configured to apply voltage to the excitation winding. The excitation winding and the two phases of output windings wound on each of Nsm (Nsm is an integer equal to or larger than 2) teeth among the Ns teeth are set to be of a main system. The excitation winding and the two phases of output windings wound on each of Ns-Nsm teeth are set to be of a sub-system. The number Nsm of the teeth corresponding to the main system is larger than the number Ns-Nsm of the teeth corresponding to the sub-system.

An electrically driven rack and pinion steering system of a motor vehicle has an axially displaceably mounted rack which transmits a steering movement for steered wheels of the motor vehicle, has an electric drive which provides a steering force and interacts with the rack, and has a housing which receives the rack and a drive element of the drive. The drive element is in engagement with a toothing system of the rack. A bearing assembly is arranged on a section of the rack without a toothing system axially on each side of the drive element, with a carrier cylinder, on the outer shell face of which an outer contact seal is arranged and on the inner shell face of which an inner contact seal is arranged, the contact seals sealing the housing with respect to the rack.

A steer-by-wire steering system includes a controller configured to execute a steering control process and a determining process of determining a converted operation amount by converting an actual wheel steering amount to an operation amount of an operation member based on an inverse of a steering gear ratio. In the determining process, when the steering gear ratio abruptly changes, the controller converts a gap of the converted operation amount generated at a time point of occurrence of the abrupt change to a gap of the wheel steering amount to grasp a converted steering amount offset value. While gradually decreasing the converted steering amount offset value, the controller thereafter re-converts the converted steering amount offset value to the gap of the converted operation amount based on the inverse of the steering gear ratio to determine a converted operation amount correction value and corrects the converted operation amount based on the value.