公开(公告)号：US10569766B2

公开(公告)日：2020-02-25

申请号：US15753812

申请日：2016-08-09

Applicant: MAZDA MOTOR CORPORATION

Inventor： Tetsuhiro Yamashita ,  Takashi Goto ,  Kiyonobu Takahashi

IPC: B60W30/09 ,  B60W40/107 ,  B60W50/12 ,  B60T7/12 ,  B60T8/175 ,  B60R21/00 ,  B60T7/22

Abstract: 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.

公开(公告)号：US10515547B2

公开(公告)日：2019-12-24

申请号：US15753789

申请日：2016-08-09

Applicant: MAZDA MOTOR CORPORATION

Inventor： Kanichi Koyama ,  Tetsuhiro Yamashita ,  Takashi Goto

IPC: H04N7/00 ,  G08G1/0962 ,  G06K9/00 ,  B60R1/00

Abstract: A sign recognition and display device (1) includes: a camera (2); a sign recognition unit (10) configured to recognize a road sign included in an image taken with the camera; a speed limit information obtaining unit (12) configured to repeatedly obtain speed limit information; and a display control unit (14) configured to, if a speed limit sign is recognized, and the speed limit information is obtained, show, on a display device (8), 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.

公开(公告)号：US12157458B2

公开(公告)日：2024-12-03

申请号：US17521897

申请日：2021-11-09

Applicant: Mazda Motor Corporation

Inventor： Takashi Hamada ,  Yuma Nishijo ,  Kouichi Kojima ,  Yoshiyuki Yamashita ,  Yuta Tsuji ,  Hiroshi Ohmura ,  Takashi Goto ,  Shoji Harada ,  Kenta Tada ,  Kazuki Sato

IPC: B60W30/06 ,  B60W10/18 ,  B60W10/20 ,  G01C21/36 ,  G06V20/56

Abstract: 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 ILL and ILR that 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 ILL and ILR, moves the left virtual line ILL to a position in proximity to the road edge E and fixes the left virtual line ILL to this position, and then, moves the right virtual line ILR to a position separated from the left virtual line ILL by the width of the vehicle and fixes the right virtual line ILR to this position, and controls brakes to stop the vehicle after fixing the left and right virtual lines ILL and ILR.

公开(公告)号：US11719549B2

公开(公告)日：2023-08-08

申请号：US17205004

申请日：2021-03-18

Applicant: Mazda Motor Corporation

Inventor： Hiroshi Ohmura ,  Takashi Goto ,  Yasuhiro Kawahara ,  Ryusuke Nomiyama ,  Akihiro Motodani

IPC: G01C21/34 ,  B60W30/09 ,  B60W30/095 ,  B60W50/00

CPC classification number: G01C21/3484 ,  B60W30/09 ,  B60W30/0956 ,  B60W50/0097 ,  B60W2520/105 ,  B60W2520/14 ,  B60W2520/18 ,  B60W2540/18 ,  B60W2554/80

Abstract: 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.

公开(公告)号：US10081341B2

公开(公告)日：2018-09-25

申请号：US15311736

申请日：2015-06-02

Applicant: MAZDA MOTOR CORPORATION

Inventor： Takashi Goto ,  Takashi Osaki ,  Hirohito Yasumatsu ,  Tetsuhiro Yamashita

IPC: B60T7/22 ,  B60T13/14 ,  B60T13/66 ,  B60T13/68

CPC classification number: B60T7/22 ,  B60T8/3275 ,  B60T8/4059 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  B60T2201/022

Abstract: 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.