Mazda Motor Corporation

Takashi Goto

Tetsuhiro Yamashita

Hiroshi Ohmura

Takashi Hamada

Kiyonobu Takahashi

Kouichi Kojima

Kazuki Sato

Yuta Tsuji

Yoshiyuki Yamashita

Hirohito Yasumatsu

Yuma Nishijo

Kenta Tada

Kanichi Koyama

Shoji Harada

Ryusuke Nomiyama

Yasuhiro Kawahara

Takashi Osaki

Akihiro Motodani

A controller detects partitioning lines OL and BL of a road and a road edge E based on an image taken by a camera, generates a pair of left and right virtual lines ILand ILthat extend from the side to the front of a vehicle along the partitioning lines OL and BL, controls the steering so the vehicle travels between the left and right virtual lines ILand IL, moves the left virtual line ILto a position in proximity to the road edge E and fixes the left virtual line ILto this position, and then, moves the right virtual line ILto a position separated from the left virtual line ILby the width of the vehicle and fixes the right virtual line ILto this position, and controls brakes to stop the vehicle after fixing the left and right virtual lines ILand IL.

Vehicle control system stabilizing behavior of a vehicle moving to a road edge to be stopped

A vehicle control apparatus is configured to execute processing to calculate a correction travel route and a control target value on the basis of a target travel route under a specified constraint condition. The vehicle control apparatus calculates the correction travel route by using an evaluation function in a manner to minimize a difference of the correction travel route from the target travel route. The evaluation function is a sum that is acquired by weighting the evaluation value at each prediction point by weight coefficients. A time interval between each adjacent pair of the prediction points is set to be increased from a near side toward a far side from the vehicle. The weight coefficients are set such that weight at the prediction point on the far side from the vehicle is less than the weight at the prediction point on the near side of the vehicle.

Vehicle control apparatus

Disclosed herein is a vehicle control device reducing a driving force generated by an engine of a vehicle to prevent the vehicle from colliding with a forward obstacle. The vehicle control device includes an ECU configured to control the driving force, an ultrasonic sensor configured to detect the forward obstacle in front of the vehicle, and a monocular camera configured to take an image of an area in front of the vehicle. The ECU determines the presence or absence of the forward obstacle in front of the vehicle based on the image taken with the monocular camera while the vehicle is travelling, and changes an upper limit of the driving force in accordance with a combination of whether or not the ultrasonic sensor has detected an object and the presence or absence of the forward obstacle determined based on the image taken with the monocular camera.

Vehicle control device

A sign recognition and display device () includes: a camera (); a sign recognition unit () configured to recognize a road sign included in an image taken with the camera; a speed limit information obtaining unit () configured to repeatedly obtain speed limit information; and a display control unit () configured to, if a speed limit sign is recognized, and the speed limit information is obtained, show, on a display device (), information on a speed limit indicated by the speed limit sign. If, while information on the speed limit indicated by the speed limit sign is displayed, the speed limit information is obtained, and the speed limit determined by the obtained speed limit information is different from the speed limit determined by the previously obtained speed limit information, the display control unit shows information on the speed limit determined by the presently obtained speed limit information.

Sign recognition and display device

A brake device includes: a battery connected to a power supply line; a fluid pressure unit driven by power from the supply line and applies fluid pressure to a brake; an alternator that receives power from a vehicle engine and generates power at a voltage higher than a charged voltage of the battery; a capacitor that stores the power generated by the alternator; and a DC/DC converter that converts the voltage of the capacitor to a predetermined value and supplies the converted voltage to the supply line. When the vehicle will potentially collide with a forward obstacle, an output of the DC/DC converter is set at a target higher than an output voltage in a normal state before brake actuation, or if output of the DC/DC converter cannot be set at the target voltage, the alternator is driven to connect a generation voltage of the alternator to the supply line.

Automatic brake device

Growing community of inventors

Higashihiroshima, Japan

Takashi Goto