A collision avoidance system in a host vehicle that employs combined automatic braking and steering. The collision avoidance system defines thresholds that identify a time to collision with a target vehicle by the host vehicle that are based on the speed of the host vehicle, the acceleration of the host vehicle, the speed of the target vehicle, the acceleration of the target vehicle, the distance to the target vehicle from the host vehicle and a coefficient of friction of the roadway. The collision avoidance system provides full automatic collision avoidance braking if the time to collision is less than one threshold and the lane adjacent to the host vehicle is not clear. The collision avoidance system provides both automatic steering and braking of the host vehicle if the time to collision is less than another threshold and the lane adjacent to the host vehicle is clear.

Vehicle collision avoidance and warning system

When a collision avoidance operation determiner determines a collision avoidance operation by a driver, a target assist electrical current calculator calculates a target assist electrical current based on a deviation between a standard yaw rate corrected in accordance with avoidance momentum calculated by an avoidance momentum calculator and an actual yaw rate; and the target assist electrical current is supplied to a steering actuator to assist the collision avoidance operation by the driver. At this time, when an under-steer determiner determines an under-steer state, an assist electrical current is decreased by a reaction force electrical current calculated in a reaction force electrical current calculator. Therefore, a steering angle is prevented from becoming too large due to excessive assist, thereby facilitating a return operation after avoiding an obstacle.

Vehicle operation assisting system

Provided is a travel control device (100) which executes: a first information-acquiring function for acquiring host vehicle information including the position of a host vehicle (V1); a second information-acquiring function for acquiring lane marker information including positions of lane markers; a setting function for setting control regions with prescribed widths on the lane markers; and a control function for controlling the travel position of the host vehicle (V1) such that the host vehicle (V1) travels between a pair of control regions set to the left and right of the host vehicle. In the case of a pair of control regions set on turning point lane markers, which are lane markers extending a predetermined distance and encompassing a turning point that lies ahead of the host vehicle (V1) in the traveling direction and that is the point at which the host vehicle (V1) would begin turning, the setting function sets the ratio (W R /W T ) of the width (W R ) of the control region on the side of the host vehicle (V1) away from the turning side to the width (W T ) of the control region on the turning side so that this ratio is larger than the ratio (W R /W T ) of the widths of control regions set on lane markers that lie between the turning point (TP) and the host vehicle (V1) but are not turning point lane markers.

Travel control device and travel control method

A collision avoidance system in a host vehicle that provides automatic steering control using differential braking in the event that the normal steering control fails. The system determines whether a collision with an object, such as a target vehicle, in front of the host vehicle is imminent, and if so, determines an optimal path for the host vehicle to travel along to avoid the object if the collision is imminent. The collision avoidance system may determine that automatic steering is necessary to cause the vehicle to travel along the optimal path to avoid the target. If the collision avoidance system does determine that automatic steering is necessary and detects that normal vehicle steering has failed, the system uses differential braking to steer the vehicle along the path.

Collision avoidance maneuver through differential braking

An object identifying apparatus is disclosed, including: an imaging part, and an object identification processing part. The imaging part receives two polarized lights having a different polarization direction included in light reflected from the object existing in the image pickup area and captures two polarization images. The object identification processing part conducts an identification process for identifying the object existing at a place corresponding to each of multiple process areas in the image pickup area by using the two polarization images captured by the imaging part.

Object identifying apparatus, moving body control apparatus, and information providing apparatus

A vehicle driving assistance apparatus includes a brake operation sensing device to sense a driver's brake operation, a steering operation sensing device to sense a driver's steering operation, a forward, and a controller. The controller is configured to determine whether there is a need for avoiding the obstacle, by examining a possibility of contact of the vehicle with the obstacle, and to produce a yaw moment to an obstacle avoiding direction advantageous for avoiding the obstacle, from the time of detection of the driver's brake operation, to the time of detection of the driver's steering operation, by adjusting a wheel brake/drive force distribution among wheels resulting from the driver's brake operation when there is the need for avoiding the obstacle.

Apparatus and process for vehicle driving assistance

PROBLEM TO BE SOLVED: To provide a driving support apparatus that performs appropriate driving support even in a scene where the motion of target moving obstacles is predicted to change under the effect of other obstacles. SOLUTION: The vehicular driving support apparatus includes a vehicle state detection means 11 for detecting running states of an associated vehicle, an obstacle detection means 12 for detecting obstacles existing around the vehicle, a moving obstacle identification means 13 for identifying the detected obstacles as moving obstacles and stationary obstacles, a course calculation means 20 for calculating a course in which the vehicle will not contact any of the detected moving and stationary obstacles, and a driving support means for providing driving support according to the calculated course. The course calculation means 20 first calculates courses of the moving obstacles and then calculates the course of the vehicle according to the calculated courses of the moving obstacles. COPYRIGHT: (C)2009,JPO&INPIT

Vehicular driving support apparatus and driving support method

PROBLEM TO BE SOLVED: To provide a vehicular drive assistance system for performing an own vehicle's braking operation of prompting a rear obstacle to perform a braking operation for alleviating a risk of a rear end collision when there is the risk that the rear end may collide with the rear obstacle due to the own vehicle's braking operation. SOLUTION: The vehicular drive assistance system includes a braking necessity determination means 9 for determining whether the own vehicle needs to perform braking processing, an own vehicle's state detection means for detecting an own vehicle's motion state, a succeeding vehicle detection means for detecting a vehicle traveling at the rear side of the own vehicle, and an own vehicle braking force determination means 10 for implementing an own vehicle's braking force to prompt the succeeding vehicle to perform the braking operation without contacting the succeeding vehicle based on the information of the own vehicle and the succeeding vehicle when the braking necessity determination means 9 determines that the own vehicle needs to perform the braking processing. In this structure, when the rear end may collide with the rear obstacle due to the own vehicle's braking operation, the own vehicle's braking operation is performed to prompt the rear obstacle to perform the braking operation, thereby alleviating the risk of the rear end collision. COPYRIGHT: (C)2010,JPO&INPIT

Vehicular drive assistance system

PROBLEM TO BE SOLVED: To provide a driving support for a vehicle allowing reduction of a burden in driving operation for obstacle avoidance by a driver. SOLUTION: When deciding that there is a possibility that an obstacle SB present in advance of a travel direction of one's own vehicle SM contacts with the own vehicle SM within a prescribed time, an avoidance direction advantageous to contact avoidance with the obstacle SB is determined. Furthermore, the own vehicle SM is controlled to guide the own vehicle SM to the advantageous avoidance direction in a range of an allowable lateral movement amount set in the own traveling path. COPYRIGHT: (C)2010,JPO&INPIT

Vehicle driving support device and vehicle driving support method

PROBLEM TO BE SOLVED: To appropriately improve an avoidance effect of obstacles ahead of an own vehicle on both sides while valuing a driver's intention. SOLUTION: When a braking operation by a driver is detected under a state where a forward obstacle SB is needed to be avoided, a yaw moment for obstacle avoidance is generated. Generation of the yaw moment is executed, for example, by adjusting distribution of a braking force of each wheel. COPYRIGHT: (C)2009,JPO&INPIT

Deguchi Yoshitaka

Papers

Apparatus and process for vehicle driving assistance

Vehicular driving support apparatus and driving support method

Vehicular drive assistance system

Vehicle driving support device and vehicle driving support method

Operation assist device for vehicle and drive support method for vehicle