Nissan Motor Company Limited

Naotaka Usui

Takeshi Kimura

Tatsuya Suzuki

Genpei Naito

Shinji Matsumoto

Satoshi Tange

Taku Takahama

Akinobu Goto

Yuki Shiozawa

A processor of a braking control device determines whether or not a moving object is detected in a predetermined region downstream an expected stop position, and when determining that a moving object is detected in the predetermined region, changes a deceleration decrease position, which is a start position of a deceleration decrease section, upstream relative to that when determining that no moving object is detected in the predetermined region.

Braking control method and braking control device

An image processing system includes an image sensor that picks up a front-view image in front of an own vehicle. Image processing regions are set to cover on the front-view image, picked up by the image sensor, various portions one after another, which narrow, in area, with different positions in a direction remote from the own vehicle. A feature is extracted out of image processing a portion of the front-view image covered by the image processing regions. The extracted feature is used for vehicle detection.

Image processing system and method for front-view image sensor

A warning apparatus for a vehicle determines a contact possibility of the vehicle contacting with an object that is present in front of the vehicle according to a relative distance between the vehicle and the front object, a relative speed between the vehicle and the front object, and the like, and provides a contact possibility warning by changing at least one of the driving torque and braking torque of the vehicle according to the contact possibility. The warning apparatus detects, an intention of the driver of the vehicle to bring the vehicle closer to the front object in a steady driving state of the vehicle by, for example, changing a lane of the vehicle. The warning apparatus calculates a correction value to change the driving torque or braking torque according to a result of the detection, delays the timing of providing the contact possibility warning, and controls braking force.

Information providing apparatus for a vehicle

A warning system for an automotive vehicle produces a vibration in the vehicle simulating a rumble strip to inform a driver of various events. A vibration with braking torque is produced by controlling individually brake fluid pressure in each wheel brake cylinder, independently of manual braking operations. The warning system is applied to a lane deviation prevention (LDP) system. The LDP system provides a warning with vibration and a control effort of yawing moment by wheel torque or steering torque.

Warning system with vibration and lane deviation prevention system with the warning system for automotive vehicle

In a warning apparatus for a vehicle, a primary controller () calculates a collision time (TTC) according to the distance between the vehicle and an object that is present in front of the vehicle and a relative speed between the vehicle and the front object. According to the collision time, the primary controller sets a correction value (Fc) for at least one of the driving force and braking force of the vehicle and provides a contact possibility warning by applying a negative acceleration to the vehicle according to the correction value. The correction value is set according to comparison between the collision time and a threshold and according to the collision time. A resilient coefficient (kTTC) of a virtual spring () is increased so that the correction value may increase as the speed of the vehicle increases.

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Yokosuka, Japan

Naotaka Usui