Abstract: A control unit performs a lane departure suppression control when a host vehicle is about to depart from a traveling lane. The control unit determines whether a low impact collision has occurred. The control unit performs a secondary collision damage mitigation control when the low impact collision is determined to have occurred while the lane departure suppression control is being performed.

Abstract: A driving assistance apparatus performs a deployment control including at least a control to deploy an air-bag of a vehicle when an collision indicating value satisfies a predetermined collision condition, and performs a brake-and-drive control to make a driving force of the vehicle smaller than a required driving force of a driver of the vehicle or to apply a brake force to the vehicle when the collision indicating value does not satisfy the collision condition and/but satisfies a predetermined low impact collision condition that is to be satisfied when a low impact collision having a degree of collision lower than the collision has occurred. In addition, the driving assistance apparatus changes the low impact collision condition in such a manner that the low impact collision condition becomes satisfied more easily as an elapsed time of a state where an anomalous state condition is satisfied becomes longer. The anomalous state condition is a condition to be satisfied when the driver is not driving normally.

Abstract: A control unit determines whether a rapid acceleration pedal depression operation has been performed. The control unit determines whether a low impact collision has occurred. When it is determined that the rapid acceleration pedal depression operation has been performed and the low impact collision has occurred, the control unit executes a secondary collision damage mitigation control. Consequently, the secondary collision damage mitigation control can be appropriately executed even when a collision that does not cause an air bag to be inflated has occurred.

Abstract: There is provided an occupant protection device for a vehicle, the occupant protection device including a side collision prediction device configured to predict a collision with a side of a host vehicle and output a prediction result including determination about whether or not the predicted collision is an inevitable collision, a physical quantity detection device configured to detect a physical quantity related to the collision with the side of the host vehicle and output a detection value of the physical quantity, an airbag device configured to expand to protect an occupant of the vehicle when the airbag device is operated, and an electronic control unit.

Abstract: A driving assist apparatus comprises a driver monitor sensor which detects a state of a driver of an own vehicle installed with the driving assist apparatus. The apparatus determines whether the driver is in a drowsy state, based on the state of the driver detected by the driver monitor sensor. The apparatus determines that a light collision occurs when a light collision determination condition that at least one collision index value representing a level of a collision of the own vehicle is larger than a light collision determination threshold at which an airbag is not developed, is satisfied. The apparatus executes a secondary collision damage mitigation control to apply a braking force to the own vehicle or limit a driving force applied to the own vehicle when determining that the driver is in the drowsy state, and the light collision occurs.

Abstract: The vehicle control device includes a target detection sensor and a control device that controls the operation of actuators. The target detection sensor can detect the relative speed of a target, positioned in a detectable area, with respect to the vehicle but cannot detect the relative speed when the target exists in a short distance area. The control device calculates the change amount of the relative speed per unit time. When the target enters the short-distance region, the control device calculates the estimated relative speed based on the elapsed time from the last acquisition time, which is the time when the relative speed of the target was last acquired from the target detection sensor, to the current time, the last acquired relative speed that is the relative speed of the target at the last acquisition time, and the time rate of change.

Abstract: A vehicle occupant protection device includes: a seat belt device having a selectable force limiter that is configured to switch a force limiter load from a high load to a low load; an airbag device that deploys an airbag in front of the occupant; a movement direction detector that detects a direction in which a head region of the occupant will move relative to the vehicle at the time of frontal collision; an initial position detector that detects a position of the head region prior to the movement; and a control unit that makes a determination whether or not the head region will move outside of an area of protection by the airbag based on detection results of the movement direction detector and the initial position detector and, in a case in which the determination is affirmative, maintains the high load of the force limiter load.

Abstract: A control unit determines whether a rapid acceleration pedal depression operation has been performed. The control unit determines whether a low impact collision has occurred. When it is determined that the rapid acceleration pedal depression operation has been performed and the low impact collision has occurred, the control unit executes a secondary collision damage mitigation control. Consequently, the secondary collision damage mitigation control can be appropriately executed even when a collision that does not cause an air bag to be inflated has occurred.

Abstract: A control unit performs a lane departure suppression control when a host vehicle is about to depart from a traveling lane. The control unit determines whether a low impact collision has occurred. The control unit performs a secondary collision damage mitigation control when the low impact collision is determined to have occurred while the lane departure suppression control is being performed.

Abstract: A driving assist apparatus comprises a driver monitor sensor which detects a state of a driver of an own vehicle installed with the driving assist apparatus. The apparatus determines whether the driver is in a drowsy state, based on the state of the driver detected by the driver monitor sensor. The apparatus determines that a light collision occurs when a light collision determination condition that at least one collision index value representing a level of a collision of the own vehicle is larger than a light collision determination threshold at which an airbag is not developed, is satisfied. The apparatus executes a secondary collision damage mitigation control to apply a braking force to the own vehicle or limit a driving force applied to the own vehicle when determining that the driver is in the drowsy state, and the light collision occurs.

Abstract: A seatbelt retractor device includes a pre-tensioner section, and a force limiter section that can change a magnitude of a load at which to start reducing tension of the retracted seatbelt. A seatbelt control ECU activates the pre-tensioner section when a deceleration G detected by a floor sensor exceeds a first threshold, and acquires a collision velocity from a radar device and sets a second threshold value to a lower value the greater the collision velocity. The seatbelt control ECU controls the starting load for tension reduction by the force limiter section to be a high load when the deceleration G has exceeded the second threshold within a determination time period after activation of the pre-tensioner section, and controls the starting load for tension reduction to be a low load when which the deceleration G has not exceeded the second threshold within the determination time period.

Abstract: The vehicle control device includes a target detection sensor and a control device that controls the operation of actuators. The target detection sensor can detect the relative speed of a target, positioned in a detectable area, with respect to the vehicle but cannot detect the relative speed when the target exists in a short distance area. The control device calculates the change amount of the relative speed per unit time. When the target enters the short-distance region, the control device calculates the estimated relative speed based on the elapsed time from the last acquisition time, which is the time when the relative speed of the target was last acquired from the target detection sensor, to the current time, the last acquired relative speed that is the relative speed of the target at the last acquisition time, and the time rate of change.

Abstract: A vehicle occupant protection device includes: a seat belt device having a selectable force limiter that is configured to switch a force limiter load from a high load to a low load; an airbag device that deploys an airbag in front of the occupant; a movement direction detector that detects a direction in which a head region of the occupant will move relative to the vehicle at the time of frontal collision; an initial position detector that detects a position of the head region prior to the movement; and a control unit that makes a determination whether or not the head region will move outside of an area of protection by the airbag based on detection results of the movement direction detector and the initial position detector and, in a case in which the determination is affirmative, maintains the high load of the force limiter load.

Abstract: A force limiter control system includes: a variable force limiter unit configured to change a force limiter load; a relative speed detection unit that detects a relative speed between a host vehicle and a preceding vehicle; a force limiter load changing unit that sets a lower load as the force limiter load in a case in which the relative speed is lower than a predetermined threshold value, than in a case in which the relative speed is equal to or greater than the predetermined threshold value; and a low load invalidation unit that invalidates a change to the force limiter load by the force limiter load changing unit in a case in which a collision with a collision object other than the preceding vehicle has been predicted in an undetectable region in which an inter-vehicular distance L to the preceding vehicle is smaller than a predetermined distance.

Abstract: A variable force limiter control system for a vehicle includes a variable force limiter mechanism, a relative speed sensor, an acceleration sensor and an electronic control unit. The variable force limiter mechanism is configured to change a force limiter load. The relative speed sensor is configured to detect a relative speed of the vehicle with respect to a collision object before a collision. The acceleration sensor is configured to detect an acceleration of the vehicle. The electronic control unit is configured to predict a severity of a collision on the basis of at least the relative speed. The electronic control unit is configured to control the force limiter load on the basis of both the predicted severity and the acceleration in an initial stage of the collision of the vehicle.

Abstract: A seatbelt retractor device includes a pre-tensioner section, and a force limiter section that can change a magnitude of a load at which to start reducing tension of the retracted seatbelt. A seatbelt control ECU activates the pre-tensioner section when a deceleration G detected by a floor sensor exceeds a first threshold, and acquires a collision velocity from a radar device and sets a second threshold value to a lower value the greater the collision velocity. The seatbelt control ECU controls the starting load for tension reduction by the force limiter section to be a high load when the deceleration G has exceeded the second threshold within a determination time period after activation of the pre-tensioner section, and controls the starting load for tension reduction to be a low load when which the deceleration G has not exceeded the second threshold within the determination time period.

Abstract: An external impact avoiding part makes a sensor failure detection part withhold from determining that a right or left door pressure sensor has failed when a right-left detection difference calculated at first time is a threshold value or larger, and makes a detection value comparison part calculate the right-left detection difference again after a calming time has elapsed. An effect of closing operation of a right door on the right door pressure sensor or an effect of closing operation of a left door on the left door pressure sensor reduces during the calming time. The avoiding part subsequently makes the detection part compare the right-left detection difference calculated again with the threshold value. As a result of the comparison, when the right-left detection difference is the threshold value or larger, the avoiding part makes the detection part determine that the right or left door pressure sensor has failed.

Abstract: A vehicle collision detection system that includes: a controller that actuates an occupant restraint device in a case in which a collision between a vehicle and an object has been predicted by a collision prediction section, a collision mode has been determined to be an underride mode by a determination section, the object has been determined to be another vehicle by the determination section, and an acceleration detected by a first acceleration sensor is at or above an underride-mode-actuation determination threshold that is lower than a normal-actuation determination threshold for the occupant restraint device.

Abstract: A variable force limiter control system for a vehicle includes a variable force limiter mechanism, a relative speed sensor, an acceleration sensor and an electronic control unit. The variable force limiter mechanism is configured to change a force limiter load. The relative speed sensor is configured to detect a relative speed of the vehicle with respect to a collision object before a collision. The acceleration sensor is configured to detect an acceleration of the vehicle. The electronic control unit is configured to predict a severity of a collision on the basis of at least the relative speed. The electronic control unit is configured to control the force limiter load on the basis of both the predicted severity and the acceleration in an initial stage of the collision of the vehicle.

Abstract: A vehicle collision detection system that includes: a controller that actuates an occupant restraint device in a case in which a collision between a vehicle and an object has been predicted by a collision prediction section, a collision mode has been determined to be an underride mode by a determination section, the object has been determined to be another vehicle by the determination section, and an acceleration detected by a first acceleration sensor is at or above an underride-mode-actuation determination threshold that is lower than a normal-actuation determination threshold for the occupant restraint device.