Patent application number | Description | Published |
20080211442 | SEATBELT APPARATUS - This seatbelt apparatus includes: a belt reel around which a belt is wound; a motor which rotationally drives the belt reel; a transmitting device which transmits a driving power between the belt reel and the motor; a controller which drives the motor while controlling an electricity to be supplied to the motor; a rotation-detection device which detects a rotation status of the belt reel. The rotation-detection device outputs, in accordance with a rotation of the belt reel, a plurality of outputs including signals indicating a first state in which a current consumption by the rotation-detection device is larger than a predetermined value, and a second state in which the current consumption by the rotation-detection device is smaller than the predetermined value. The controller executes a first motor-driving process in which the motor is driven based on an output from the rotation-detection device until reaching the second state. | 09-04-2008 |
20080264710 | VEHICLE SEAT-BELT DEVICE AND CONTROL METHOD THEREOF - A vehicle seat-belt apparatus including: a forward monitoring device which conducts monitoring to the front of a vehicle; an avoidance assist device which supports a predetermined avoidance operation in order to avoid an obstacle when it is determined that there is an obstacle to be avoided based on a detection result of the forward monitoring device; a motor which conducts a rotary driving of a belt reel on which a belt is wound; and a control device which controls the motor, wherein the control device conducts a drive control of the motor according to a state of support of the avoidance operation by the avoidance assist device. | 10-30-2008 |
20090020997 | SEATBELT DEVICE FOR VEHICLE AND CONTROL METHOD THEREOF - A seatbelt device for a vehicle provided with: a webbing that restrains a passenger seated on a seat; a belt reel on which the webbing is wound; a motor that rotation-drives the belt reel; a motor control device that controls the motor; an input determination device that determines whether or not an input signal from a seatbelt operation section including the webbing is an artificial input signal; and a command output device that outputs a setting change command to the motor control device according to a determination result from the input determination device. | 01-22-2009 |
20090024283 | SEATBELT DEVICE FOR VEHICLE - A seatbelt device for a vehicle including: a belt reel having webbing wound thereon; a position detection device that detects a winding position of the belt reel; a motor that drives the belt reel to rotate to thereby perform winding of the webbing; and a control section that performs control of electric current conduction to the motor, wherein: the control section performs electric current conduction to the motor at a predetermined amount at the time of a rear vehicular collision or when a rear vehicular collision is predicted; and the electric current conduction amount is controlled, so that during electric current conduction at the predetermined electric current conduction amount, when a winding position detected by the position detection device reaches a predetermined position, variation in the winding position is suppressed. | 01-22-2009 |
20100057303 | SEATBELT DEVICE OF VEHICLE AND METHOD CONTROLLING THE SEATBELT DEVICE OF VEHICLE - A seatbelt device of a vehicle, the seatbelt device comprising: a belt reel around which a webbing, used to tie down a passenger seated in the vehicle, is wrapped up; a motor transmitting a driving force to the belt reel; an electric current detection unit detecting an electric current flowing through the motor; a vehicle-condition detection unit detecting a condition of the vehicle; a rotation detection unit detecting a rotational position of the belt reel; and a control unit that sets a target electric current corresponding to a predetermined vehicle condition detected by the vehicle-condition detection unit and controls the motor so that the electric current detected by the electric current detection unit equals the target electric current. | 03-04-2010 |
20100156083 | SEATBELT APPARATUS FOR VEHICLE - A seat belt apparatus for a vehicle including: a belt reel; a emergency locking retractor which performs a mechanical locking of the belt reel so as not to rotate in a direction of unwinding a webbing when an unstable behavior of the vehicle is detected by a vehicle condition detection device, and then automatically release the locking if the belt reel rotates in a direction of winding the webbing greater than or equal to a predetermined amount; and a locking continuity determination device which determines whether or not the locking continues after the emergency locking retractor performs the locking based on the vehicle condition and variation of the rotational position of the belt reel, wherein a control device makes a driving motor rotate so as to release the locking if the locking continuity determination device determines the locking continues for greater than or equal to a predetermined amount of time. | 06-24-2010 |
20110017857 | SEATBELT DEVICE OF VEHICLE - A seatbelt device of a vehicle includes: a webbing reel around which a webbing is rolled up; a motor; an acceleration detection unit detecting an acceleration applying to the vehicle; an electric current control unit controlling a driving current of the motor; and an acceleration condition determination unit determining whether or not an acceleration greater than or equal to a set value has been applied to the vehicle within a predetermined amount of time after an acceleration greater than or equal to a first threshold acceleration value has been applied to the vehicle. When the acceleration condition determination unit determines that an acceleration greater than or equal to the set value has been applied to the vehicle within the predetermined amount of time, the electric current control unit controls the driving current of the motor so that a set amount of the webbing is wrapped up. | 01-27-2011 |
20120325574 | VEHICLE SEATBELT DEVICE - This seat belt device of a vehicle includes a webbing, a belt reel, a motor, a clutch, detection unit, brake control unit and motor control unit. The motor control unit includes a waiting current control unit configured to conduct a current that can maintain the clutch to be in the connection state in the motor when the brake control unit outputs the operation signal and variable current control unit configured to proceed from current control performed by the waiting current control unit when a change in the movement state of the vehicle is detected by the detection unit during the current control performed by the waiting current control unit and adjusts the amount of conduction in the motor based on the movement state of the vehicle that is detected by the detection unit. | 12-27-2012 |
20130041559 | SEATBELT DEVICE - In this seatbelt device, when a lock release determining device determines that a lock has been released, and a command for driving a motor is output while a wind-up operation is performed by the motor to release the lock, and a priority of the command is equal to or higher than a predetermined level, a control device controls the motor so as to apply tension to a webbing. | 02-14-2013 |
20130278409 | SEAT BELT FAILURE WARNING APPARATUS - The seat belt failure warning apparatus is disposed with a buckle switch that detects wearing of a webbing, a rotation sensor that detects a drawing-out amount of the webbing, and a liquid crystal display that switchingly displays a plurality of alarm information. A controller is disposed with a failure determination unit that determines whether the seat belt device has had a failure or not, and a control unit that controls display of the liquid crystal display. When the buckle switch is OFF and drawing-out of the webbing is detected by the rotation sensor after the failure determination unit has determined the seat belt device has had a failure, failure information of the seat belt which indicates that the seat belt device has had a failure as a determination result by the failure determination unit is displayed on the liquid crystal display regardless of a display priority of alarm information. | 10-24-2013 |
20140103696 | SEAT BELT APPARATUS - A control device controls driving of a motor such that a clutch of a power transmission mechanism is moved to a disconnecting position and thereby a belt reacher device is moved around in a forward direction of a vehicle by a return spring of the belt reacher device, if a change from an open state to a closed state of a door is detected by a door switch. The control device controls driving of the motor such that a webbing is winded and thereby the belt reacher device is moved around to a retracted position in a backward direction of the vehicle, if a determination is made that no occupant seated in a passenger seat is detected by an output of an OFF signal from a buckle switch of the passenger seat and a determination is made that start-up of the vehicle is detected by an output of an ON signal from an ignition switch. | 04-17-2014 |
20140117139 | SEAT BELT DEVICE - A seat belt device includes a belt reel around which webbing is wound, a winding spring that rotationally biases the belt reel in a winding direction, a motor that is configured to transmit a driving force to the belt reel, a clutch that is interposed between the motor and the belt reel, and which performs connection/disconnection of the motor and the belt reel, a webbing speed detection unit that detects the winding speed of the webbing, a fastened/released state detection unit that detects a fastened state and a released state of the webbing, a basic winding control unit that drives the motor in the winding direction in a rotating manner and puts the clutch into a connected state, and a speed increase correction unit that increases the speed of the motor with respect to the speed of the motor obtained by the control of the basic winding control unit. | 05-01-2014 |
Patent application number | Description | Published |
20080265551 | VEHICLE SEATBELT APPARATUS - Seatbelt apparatus includes a control device connected with a vehicle-mounted battery for controlling an operational state of a seatbelt on the basis of an opened/closed state of a buckle switch and electric power supplied by the battery. The control device has a first operation mode for operating with low-level electric power, and a second operation mode for operating with higher-level electric power. In the second operation mode, the control device is kept in a state capable of detecting the opened/closed state of the buckle switch. The apparatus also includes a storage section for storing a current state value of the buckle switch when the control device shifts from the second operation mode to the first operation mode. | 10-30-2008 |
20090005937 | VEHICULAR SEATBELT APPARATUS - A seatbelt apparatus for a vehicle includes a control device for controlling an amount of electric current fed to a motor for winding a seatbelt. The control device controls the motor such that a predetermined amount of electric current is applied to the motor in a behavioral state of the vehicle requiring emergency measures, and such that when the seatbelt is wound a predetermined amount, the predetermined amount of winding is maintained. | 01-01-2009 |
20090066072 | VEHICLE SEATBELT APPARATUS - A vehicle seatbelt apparatus includes a power supply voltage fluctuation detecting section incorporated in a control device for detecting fluctuations of power supply voltage occurring when an engine cranking operation is being performed. The control device changes drive mode of the motor when such fluctuations of the power supply voltage are detected by the power supply voltage fluctuation detecting section. | 03-12-2009 |
20090079178 | VEHICLE SEATBELT APPARATUS - A vehicle seatbelt apparatus includes a inhibiting section for inhibiting a belt-reel driving motor from being driven when it determines, on the basis of an output signal from a rotational position detecting unit associated with a belt reel, that variation in the rotational position of the belt reel, which is less than or equal to a predetermined value, has occurred, on condition that a door opened/closed state detecting units detects that a vehicle door has shifted from a closed state to an opened state. | 03-26-2009 |
20090173816 | VEHICLE SEATBELT APPARATUS, VEHICLE HAVING THE VEHICLE SEATBELT APPARATUS AND METHOD FOR CONTROLLING VEHICLE SEATBELT - A vehicle seatbelt apparatus includes a belt, a belt reel, a position detector, a motor, a clutch, and a control device. The belt is wound around the belt reel. The position detector is configured to detect a rotational position of the belt reel. The motor is configured to rotate the belt reel. The clutch is configured to connect or disconnect the motor and the belt reel. The control device is configured to control the clutch and a current supplied to the motor. The control device includes a return amount detector which is configured to detect a return amount of the belt reel in a drawing direction of the belt based on the rotational position of the belt reel detected by the position detector after the belt is wound around the belt reel and then the clutch disconnects the motor and the belt reel. | 07-09-2009 |
20100207444 | VEHICULAR SEATBELT DEVICE - A vehicular seatbelt device whereby slack in a lap belt is sufficiently eliminated according to a traveling state of a vehicle, and a comfortable ride for a vehicle occupant is maintained. A seatbelt device comprises a belt retraction part and an actuator for driving the belt retraction part. The belt retraction part pulls part of a belt in a direction opposite the direction in which the belt is wound up by a belt reel so as to restrain the vehicle occupant. A controller includes a plurality of pre-set control modes for controlling a motor and the actuator in accordance with the traveling state of the vehicle, and selects and implements one control mode corresponding to the traveling state from among the plurality of control modes. The control modes include a mode for drivably controlling both the motor and the actuator, a mode for drivably controlling only the motor, and a mode for drivably controlling only the actuator. | 08-19-2010 |
20110140404 | PASSIVE SAFETY DEVICE - There is provided a passive safety device which can prevent an occupant from moving when an acceleration that causes the occupant to move in a vehicle is working on the occupant, and which can improve the ride comfort. A passive safety device of the present invention comprises an acceleration detecting unit that detects an acceleration of a vehicle, a seat adjusting unit that expands a seat side of a seat in order to prevent an occupant sitting down the seat from moving, a safety belt adjusting unit that controls tension of a safety belt worn by the occupant, and a control unit that controls an expansion of the seat side and/or the tension of the safety belt through the seat adjusting unit and the safety belt adjusting unit, based on the detected acceleration of the vehicle. | 06-16-2011 |
20140191073 | SEAT BELT APPARATUS - A seat belt apparatus includes a reel, a motor, a clutch member, a belt reacher, a door opening/closing detection section, a wearing detection section and a motor control section. Once a change from an opened state to a closed state of a vehicle door is detected by the opening/closing detection section, the control section controls the motor so that the webbing is pulled out from the reel at a predetermined speed. Once wearing of the webbing is detected by the wearing detection section while the webbing is being pulled out at the predetermined speed, the control section controls the motor to stop pulling-out of the webbing. The predetermined speed is first kept at a constant speed, corresponding for example to a 10[%] duty cycle, for a predetermined time period and then caused to gradually decrease from the constant speed. | 07-10-2014 |