Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Fujitsu Ten Limited

Yusuke Mase

Takashi Hasegawa

Takayuki Hattori

Jiro Ohachi

Takashi Fujinami

Masakatsu Onitsuka

Hisashi Hagiwara

Tetsuhiro Narita

Hideyuki Usui

Yuki Tomiku

Yuji Misumi

Yoshiaki Moriya

Motomi Iyoda

Naoya Higashimachi

Yuu Nakazawa

Yasushi Nagaoka

Takuya Nezaki

Yujiro Miyata

Tomoki Nagao

Masaki Ikai

Hiroyoshi Takeuchi

Katsunori Yamada

Shunichi Katsumata

Makoto Aki

Mitsuaki Gotoh

Yasuo Imamura

Keiji Yamaguchi

Hideaki Ohka

Shoichi Inaba

Suguru Taniguchi

Kazuki Mori

Naoki Ikuta

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.

Driving assistance apparatus

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.

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.

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.

Occupant protection device for vehicle and occupant protection method for vehicle

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.

Driving assist apparatus

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.

Vehicle control device

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.

Vehicle occupant protection device

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.

Seatbelt control device

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.

Variable force limiter control system for vehicle

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.

Pressure sensor malfunction detection device

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.

Vehicle collision detection system

A vehicle bumper structure including: bumper reinforcement inside of a bumper cover provided at a front-rear direction outside end of a vehicle; an absorber disposed adjacent to the vehicle front-rear direction outside of the bumper reinforcement; a pedestrian collision detection sensor including a pressure tube extending between the bumper reinforcement and the absorber, bending toward a vehicle lower side at positions of both vehicle width direction end portions of the bumper reinforcement, including a left and right pair of tube end portions extending along a vehicle up-down direction, and outputting a signal according to a change in pressure in the pressure tube; and a reinforcement member, the reinforcement member being provided to a vehicle front-rear direction inside face of the bumper cover, reinforcing the bumper cover, and being disposed in a position superimposed in the vehicle front-rear direction on the tube end portion in plan view.

Pedestrian collision detection sensor-equipped vehicle bumper structure

A vehicle bumper structure including: bumper reinforcement at a rear of a bumper cover; an absorber in front of the bumper reinforcement; and a pedestrian collision detection sensor including a pressure tube between the bumper reinforcement and the absorber, wherein a position of a width direction outer end of the bumper reinforcement is set between a first normal line and a second normal line, where a front-rear reference line passes through a width direction outer end of a front hood or apron upper member and extends along a front-rear direction, the first normal line passes through an intersection point between the front-rear reference line and the bumper cover and extends along the direction of a normal line with respect to the width direction outer end of the bumper reinforcement, and the second normal line is offset by 100 mm to a width direction inner side of the first normal line.

Vehicle bumper structure including a pedestrian collision detection sensor

A passenger protection system includes: first and second sensors that detect an impact applied to a vehicle in a width direction; a determination device that determines a collision by comparing a first detection signal from the first sensor with a first determination condition, and by comparing a second detection signal from the second sensor with a second determination condition; and a boarding position detector that detects a boarding position of a passenger. The determination device sets the first determination condition and the second determination condition according to the boarding position in such a manner that the first determination condition is different from the second determination condition.

Passenger protection system

A collision detection apparatus that is mounted in a vehicle and that determines whether an object has collided with a side surface of the vehicle from outside the vehicle includes: an acceleration detection portion that detects acceleration in a transverse direction of the vehicle which is applied to a door portion of the vehicle from outside; an integration execution portion that starts integration of the acceleration detected by the acceleration detection portion and finds velocity by integrating the acceleration if the detected acceleration is greater than or equal to a pre-set positive first threshold value, or is less than or equal to a pre-set negative second threshold value; and a collision determination portion that determines whether an object has collided with a side surface of the vehicle based on the detected acceleration and the velocity found by the integration execution portion.

Growing community of inventors

Nagoya, Japan

Yusuke Mase