A system includes a magnetic sensor that can store a magnetic state associated with a number of accumulated turns of a magnetic target. The magnetic sensor may work in conjunction with a magnetic target. The magnetic target may produce a magnetic field that, at some positions, drops below a magnetic window of the magnetic sensor. The magnetic target may produce a magnetic field that is within the magnetic window when needed to update the magnetic state of the sensor to keep track of the accumulated turns of the magnetic target. The magnetic sensor may be initialized with one or more domain walls.

A torque-angle sensor includes a torque sensing unit, an angle sensing unit, and a PCB. The torque sensing unit includes a signal input rotor and a signal output rotor. The angle sensing unit includes a driving gear and a driven gear that is fitted round and fixed to one of the signal rotors. The PCB has a torque magnetic field generating unit, an input shaft signal collecting unit, and an output shaft signal collecting unit that sense a rotation angle and torque of the signal rotors. The PCB has an angle magnetic field generating unit and an angle collecting unit that sense a rotation angle of the driving gear and the driven gear. The torque magnetic field generating unit, the input shaft signal collecting unit, the output shaft signal collecting unit, the angle magnetic field generating unit, and the angle collecting unit are configured as coils formed by printed circuits.

The present invention provides a rotation angle detection device that detects a steering state quantity of steer-by-wire. The rotation angle detection device includes a drive gear that rotates along with the rotation of a rotating shaft part, first through third driven gears that rotate in conjunction with the drive gear and have different numbers of teeth that are indivisible by each other, sensors that detect the amounts of rotation and are provided for the respective first through third driving gears, a rotation amount generating unit that generates the amount of rotation of the drive gear by combining the amounts of rotation of different driven gears, and power supply circuits each of which is provided for a combination of sensors that detect the amounts of rotation of different driven gears. This configuration makes it possible to improve robustness against failure of sensor elements and power supply circuits.

A position-torque sensor system includes two angle sensors configured to detect a rotational movement. Each of the two angle sensors includes a rotor and a stator. The rotor is rotatable in response to the rotational movement to provide a rotor rotational movement and is rotatable relative to the stator. The stator includes an excitation coil and a set of receiving coils that generate output signals indicative of the rotor rotational movement. The sets of receiving coils of the stators of the two angle sensors are structurally same and the rotors of the two angle sensors are structurally the same.

Methods and systems for data collection in an environment including pumps and fans are disclosed. A monitoring system may include a data collector communicatively coupled to a plurality of input channels, wherein the input channels are communicatively coupled to sensors measuring operational parameters of a pump or fan. A data storage may store one or more frequencies related to an operation of the pump or fan, and a data acquisition circuit may interpret a plurality of detection values from the collected data. A frequency evaluation circuit may detect a signal on one of the input channels at a frequency higher than the one or more frequencies at which the pump or fan operates.

Systems and methods for detecting magnetic turn counter errors with redundancy are provided. In one aspect, a magnetic field turn sensor system includes a magnetic field angle sensor having a sine bridge and a cosine bridge and first to third comparators configured to compare the outputs from the sine and cosine bridges. The system further includes a processor configured to receive outputs from each of the first to third comparators, determine that a combination of the outputs from the first to third comparators corresponds to an invalid state, and indicate a fault in response to determining that the combination of the outputs from the first to third comparators corresponds to the invalid state.

A steering apparatus includes a steering wheel, a support frame, a frame fixation part, and a steering transmission part. The support frame rotatably supports the steering wheel. The frame fixation part fixes the support frame to a vehicle body. The steering transmission part transmits a rotation of the steering wheel relative to the support frame to a steering mechanism of a wheel. The support frame and the frame fixation part are arranged at a position that does not overlap with a rotation center axis line of the steering wheel in a front view of the steering wheel.

An absolute steering sensor assembly (10) is provided, comprising a printed circuit board (18), at least one hall sensor (20, 22) being attached to the printed circuit board (18), at least one magnet (34, 36) being rotatably mounted such that the magnet (34, 36) is rotated upon a rotation of a steering column (26), the at least one magnet (34, 36) being placed in proximity of the at least one hall sensor (20, 22) such that the hall sensor (20, 22) can detect the magnetic field emitted by the magnet (34,36), and a protective cover (38, 40) being attached to the printed circuit board (18) such that the protective cover (38, 40) is placed between the magnet (34, 36) and the printed circuit board (18).

The present disclosure provides a vehicle steering device and a vehicle steering method capable of ensuring safety of a passenger and a vehicle when a steering abnormality of the vehicle occurs. The vehicle steering device includes a steering input unit, a steering output unit connected to the steering input unit and a wheel, and a control unit configured to control the steering input unit and the steering output unit, in which, when a steering abnormality occurs in the steering input unit, the control unit directly controls the steering output unit regardless of the operation of the steering input unit.

A method for terminating an automated driving function of a vehicle involves deactivating the driving function by a steering intervention of a driver of the vehicle in a steering system, which includes a steering column and a steering wheel. In order to determine the steering intervention, a steering column torque at the steering column is measured and a steering wheel angle is measured. A manual torque acting on the steering wheel is estimated based on the measured steering column torque and the measured steering wheel angle. The estimation is based on a model equation of the steering system, which takes into consideration a moment of inertia of the steering wheel and a frictional torque in the steering system.