Patent application number | Description | Published |
20090243353 | SEAT APPARATUS - A seat apparatus includes a seat adapted to be arranged on a floor of a vehicle, a motor driving the seat to move, and a control unit supplying electric power to the motor by controlling a duty ratio with duty cycle control. The control unit determines an initial start-up time in which the duty ratio is defined as a first duty ratio over a period between the time the motor is started up after being powered by the control unit and the time before the seat driven by the motor starts moving. The control unit reduces the duty ratio when the initial start-up time elapses and sets the duty ratio to a second duty ratio smaller than the first duty ratio when the seat starts moving. | 10-01-2009 |
20090284062 | SEAT DRIVING APPARATUS - A seat driving apparatus includes: a gear transmission mechanism, preventing a backlash by means of the wedge member applied with a biasing force of a biasing member and transmitting a torque; an actuator, operating a seatback of a seat; and a control unit, controlling driving of the actuator. The control unit includes a seat operation mode in which the actuator is driven to operate the seatback at a predetermined speed and a creep mode in which the actuator is driven at a slower speed than a speed in the seat operation mode. The actuator is driven in the creep mode until a load for releasing the holding of the gear transmission mechanism is applied to the wedge member and subsequently the actuator is driven in the seat operation mode when the seatback is operated in an opposite direction from the previous operational direction thereof. | 11-19-2009 |
20100066137 | POWER SEAT SYSTEM FOR VEHICLE - A power seat system for a vehicle, includes an operational switch configured to be operated by an occupant for changing positions and attitudes of a vehicle seat whose positions and attitudes are electrically adjusted, a sensor portion positioned in the vicinity of the operational switch and detecting a hand of the occupant approaching the operational switch without contacting the hand of the occupant, and a control portion changing the positions and attitudes of the vehicle seat by actuating an actuator on the basis of an output from the operational switch, the control portion configured to display an operational display indicating adjusting portions and directions of the vehicle seat, which is adjustable by means of the operational switch on the basis of the output from the sensor portion, at an display device provided in a vehicle. | 03-18-2010 |
20120145868 | SEAT SLIDING APPARATUS FOR A VEHICLE - Disclosed is a seat sliding apparatus for a vehicle, the apparatus provided with a pair of lower rails fixed to the vehicle floor and a pair of upper rails fixed to a vehicle seat. The seat sliding apparatus causes screw shafts supported at the upper rail to rotate relative to nut members fixed to the lower rails and the upper rails to move relative to the lower rails in the seat forward-rearward direction. A speed reducer-equipped motor comprises a motor, a gear mechanism, and a gear housing. The gear housing is designed so that the axis of the output shaft of the gear mechanism extends in the seat width direction. A manipulation switch comprises a manipulating portion fixed to the gear housing such that the operation switch is exposed at a forward end of the seat. | 06-14-2012 |
20120173089 | POWER SEAT DEVICE - A power seat device includes a motor, an adjustment operation member, a Hall sensor, an ECU, a memory, and a single request operation member. The adjustment operation member adjusts a seat position. The Hall sensor detects a seat position. The ECU drives and controls the motor in accordance with an operation of the adjustment operation member to adjust the seat position. The memory stores two seat positions adjusted by the adjustment operation member. The request operation member sequentially retrieves the two seat positions stored in the memory when pushed. The ECU drives and controls the motor to reinstate the seat position retrieved by the operation of the request operation member. The ECU automatically stores a seat position before the reinstatement of the retrieved seat position is started in the memory. | 07-05-2012 |
20130154328 | VEHICLE SEAT DEVICE - A vehicle seat device including a drive device, a control unit, and seating detection unit. The drive device is configured to move a seat cushion having a seat surface on which a vehicle occupant is seated in a vertical direction. The control unit controls the drive device. The seating detection unit detects a seating action of the vehicle occupant on the seat cushion. The control unit controls the drive device to move the seat cushion downward when the seating detection unit detects the seating action of the occupant. | 06-20-2013 |
20130154534 | VEHICLE SEAT APPARATUS - Provided is a vehicle seat apparatus including drive mechanism for moving configuring elements of a vehicle seat using a motor drive, in order to adjust a posture; control mechanism for controlling the operation of the drive mechanism; a rotation sensor which outputs pulse signals synchronized with a motor rotation; position detection mechanism for detecting a movement position of the configuring elements by counting pulse edges of the pulse signals according to the motor rotation direction; and reverse rotation detection mechanism for estimating that a reverse rotation has occurred in the motor rotation, in a situation where the pulse edges are continuously detected after the motor drive is stopped, if the rotation direction is unchanged, in a case where a motor rotation speed indicated by the pulse edges after the stop becomes faster than the motor rotation speed before the motor drive is stopped. | 06-20-2013 |
20130249266 | CONTROL DEVICE FOR VEHICLE SEAT - A control device for a vehicle seat is provided. This control device for the vehicle seat is provided with a control unit. In order to improve the performance of getting into and out of a vehicle, the control unit executes an away movement for moving the vehicle seat to the rear of the vehicle when a preset away condition is satisfied, and when a preset return condition is satisfied in this state, executes a return movement for moving the vehicle seat to the front of the vehicle. The return condition includes, as a first return condition, a vehicle door being closed with a portable key in the vehicle. | 09-26-2013 |
20130253779 | SEAT APPARATUS FOR VEHICLE - A seat apparatus for a vehicle includes a seating surface adjustment mechanism provided with an actuator and moving a seating surface of a vehicle seat in an up-down direction, a seat position adjustment mechanism for moving the vehicle seat in a vehicle front-rear direction, a seat position detection portion for detecting a front-rear direction position of the vehicle seat, a vehicle egress intention detection portion for detecting an intention of an occupant of the vehicle to get off the vehicle, and a drive control portion for performing a vehicle egress seating surface control in a case where the vehicle egress intention detection portion detects the intention of the occupant to get off the vehicle, the vehicle egress seating surface control controlling the seating surface adjustment mechanism so that the seating surface is positioned at a seating surface position set to correspond to the front-rear direction position of the seat. | 09-26-2013 |
20140005897 | OPEN/CLOSE ACTUATING MECHANISM CONTROL DEVICE AND OPEN/CLOSE ACTUATING MECHANISM CONTROL METHOD FOR VEHICLE | 01-02-2014 |
20140084656 | VEHICLE SEAT DEVICE - A vehicle seat device includes a lock mechanism, which restricts sliding movement of a seat, a drive source, which drives the lock mechanism to restrict and cancel restriction on the basis of operation of an operation switch, and a control portion, which controls the drive source. The control portion performs at least one of cancellation limitation control, restriction limitation control, and forced restriction control. | 03-27-2014 |
20140097657 | VEHICLE SEAT DEVICE - A vehicle seat device includes a lock mechanism, a drive source, which has an output portion, a cancellation detection portion, which detects the cancellation of restriction by the lock mechanism, and a restriction detection portion, which detects restriction by the lock mechanism. When cancelling restriction on the basis of operation of the operation switch, current is supplied to the drive source such that the output portion moves in the forward direction until the cancellation detection portion has detected cancellation, and when the cancellation has been detected, the supply of current to the drive source is stopped. When performing the restriction on the basis of operation of the operation switch, current is supplied to the drive source such that the output portion moves in the reverse direction until the restriction detection portion has detected restriction, and when restriction has been detected, the supply of current to the drive source is stopped. | 04-10-2014 |
20140239867 | PINCH DETECTION APPARATUS FOR OPENING-AND-CLOSING MEMBER, AND OPENING-AND-CLOSING MEMBER APPARATUS - A pinch detection apparatus for an opening-and-closing member actuated by a motor, the pinch detection apparatus includes a reference data storage portion calculating load data on the basis of a rotation speed of the motor and an environmental temperature, the reference data storage portion storing the load data and the environmental temperature as reference load data and reference temperature data, respectively, a drive load calculation portion calculating drive load data, and a pinch determination portion configured to determine an occurrence of pinch on the basis of a comparison result obtained by comparing a difference between the reference load data and the drive load data with a threshold, the pinch determination portion configured to correct a relative relation between the difference between the reference load data and the drive load data, and the threshold on the basis of a relative relation between a reference temperature and a drive temperature. | 08-28-2014 |
20140277953 | SEAT SLIDE APPARATUS FOR VEHICLE - A seat slide apparatus includes a lock device, which is switchable between locked and released states, and a control device, which controls the operation of the lock device. The control device includes a manipulation detection portion, a first control portion, which switches the lock device to the released state in response to the detection of the manipulation and switches the lock device to the locked state in response to the stoppage of the detection of the manipulation, a door opening-and-closing detection portion, which detects opening and closing of the vehicle door, and a second control portion. The second control portion determines whether a door open-time release condition under, which the movement of the vehicle seat should be permitted is satisfied when opening the vehicle door, and switches the lock device to the released state and maintains the released state if the door open-time release condition is satisfied. | 09-18-2014 |