A seat control device is configured to control an operation of an electric seat including a seat portion and a backrest portion. The seat control device includes: a first control unit configured to control an operation of the seat portion; a second control unit configured to control an operation of the backrest portion; and a pinching detection unit. In a case in which the pinching detection unit detects pinching during operations of both the seat portion and the backrest portion, the first control unit performs control to bring the seat portion into a pinching- free state in accordance with a direction of the operation of the seat portion before the pinching occurs, and the second control unit performs control to bring the backrest portion into a pinching-free state in accordance with a direction of the operation of the backrest portion before the pinching occurs.

A seat control device is a control device of an electric seat. The seat control device includes: a control unit configured to control an operation of the seat; a pinching detection unit configured to detect pinching of an object occurring while the seat is moving; and a seating detection unit configured to detect whether or not an occupant is seated on the seat. In a case in which the pinching detection unit detects pinching and the seating detection unit does not detect seating of the occupant, the control unit moves the seat in a reverse direction by a predetermined amount. In a case in which the pinching detection unit detects pinching and the seating detection unit detects seating of the occupant, the control unit moves the seat in the reverse direction by an amount smaller than the predetermined amount.

The present disclosure provides a seat control system for a vehicle, which may sense whether passengers have been seated on a front seat and a rear seat, and easily implement sleep and rest postures of the front seat and the rear seat through the height adjustment, the reclining adjustment, and the like of the front seat and the rear seat according to the sensed result.

An embodiment vibration motor assembly of a seat includes a vibration motor and an upper housing disposed around the vibration motor to hold and fix the vibration motor, the upper housing configured to be fixed to a pad of the seat, and the upper housing including a holding part disposed at a circumference of a front surface of the upper housing to hold a circumference of the vibration motor and a fixing part protruding from a rear surface of the upper housing to cover and fix a rear surface of the vibration motor.

In an arrangement which includes: a seat support body slidably supported on a fixed rail fixed to a floor; a power supply device supplying power to an electrical component on a seat side; and a drive device driving the seat support body in a front-and-rear direction and having a motor and a transmission member disposed so as to pass longitudinally through an interior of the fixed rail, the power supply device includes: a housing housing an electric wire for power supply; and a slider linked to the seat support body and slidable within the fixed rail. The electric wire is drawn out from the housing, retained by the slider and slidable within the fixed rail. The slider has an interference-avoiding portion for avoiding interference with the transmission member disposed so as to pass longitudinally through the interior of the fixed rail. Accordingly, the transmission member of the drive device and the slider for retaining the electric wire, which slides within the fixed rail, can be arranged in proximity to each other within the fixed rail while avoiding interference therebetween, thus enabling simplification and a reduction in the size of a rail structure.

The present disclosure relates to an adjustment device for a vehicle seat comprising adjusters adjustable in relation to one another, where on the first adjuster a toothed rack with an interlocking is hinged, and on the second adjuster a pinion is pivoted, the interlocking engaging with the pinion for adjusting the toothed rack and for moving the two adjusters in relation to one another, where, further, a toothed rack blocking element is affixed to the second adjuster, and the toothed rack, when adjusted, runs between the toothed rack blocking element and the pinion.

To provide a technique that enables the reduction of fatigue of a vehicle occupant at low cost and without an increase in the number of parts. Without preparing a sensor in addition to a posture changing mechanism, the position of a lumbar vertebra or thoracic vertebra of each vehicle occupant is estimated by controlling the operation of the posture changing mechanism. The posture changing mechanism includes: a back side support mechanism; a first motor capable of shifting a position of the back side support mechanism with respect to a vertical direction; and a second motor capable of shifting the position of the back side support member with respect to a front-back direction. A position of a lumbar vertebra of the vehicle occupant is estimated by: while changing the vertical position of the back side support mechanism by means of the first motor, changing a forward position of the back side support mechanism at each of the different vertical positions thereof by means of the second motor so as to obtain a turnover number value of the second motor achieving a desired resistance; and comparing the turnover number values of the second motor achieving the desired resistance. A position of the thoracic vertebra is determined by calculation based on the position of the lumbar vertebra. The position of the posture changing mechanism is set based on the results of estimation of the individual positions. Thus, a fatigue reduction effect is provided on the vehicle occupant by utilizing the posture changing mechanism.

A vehicle seat comprising a seat part, an adjustable backrest part attached to the seat part, and a floor assembly supporting the seat part and arranged on a vehicle floor. The seat part is connected to the floor assembly in a pivotal manner about a first axis, and the backrest part is connected to the seat part in a pivotal manner about a second axis. The vehicle seat has a first adjusting device powered by an electric motor for pivoting the seat part relative to the floor assembly about the first axis and a second adjusting device powered by an electric motor for pivoting the backrest part relative to the seat part about the second axis.

The present invention provides a motor driver and a motor driving system capable of suppressing power consumption when a motor is in a brake state. The motor driver of the present invention includes: a half-bridge power output section, including a high-side transistor and a low-side transistor; a high-side driving circuit, driving the high-side transistor; and a control portion. When switching to a brake mode, the low-side transistor is turned on and the control portion turns off the high-side driving circuit.

The present disclosure relates to a motor for a seat sliding device of a vehicle, and includes a coil module in which a plurality of first coils and a plurality of second coils are seamlessly disposed in the circumferential direction to have a cylindrical shape. Therefore, the conventional stator core having a slot and a tooth for installing the coil is not used, thereby implementing miniaturization and light-weight of a motor. and the slot and the tooth do not exist, thereby reducing a cogging torque and reducing the vibration and noise of the motor.