公开(公告)号：US20140362933A1

公开(公告)日：2014-12-11

申请号：US14376304

申请日：2013-02-01

申请人： Hitachi Automotive Systems, Ltd.

发明人： Teppei Hirotsu ,  Nobuyasu Kanekawa ,  Takuya Mayuzumi ,  Tsutomu Yamada ,  Chihiro Sato

IPC分类号： H04L1/00 ,  G08C19/16

CPC分类号： H04L1/0047 ,  F02D41/20 ,  F02D41/266 ,  G08C19/16 ,  H04L1/0042

摘要： By reducing the serial transmission amount of pulses between a driving IC and a control IC, the transmission times of various commands other than the transmission time of the pulses can be secured, so that the improvement of reliability and high performance of the entirety of an electronic control device can be realized. The serial transmission between the driving IC and the control IC is started at the time when the edges of the pulses are detected.

摘要翻译： 通过减少驱动IC和控制IC之间的脉冲串行传输量，可以确保除了脉冲的传输时间以外的各种命令的传输时间，从而提高整个电子设备的可靠性和高性能 可实现控制装置。 驱动IC和控制IC之间的串行传输在检测到脉冲的边沿时开始。

公开(公告)号：US09151239B2

公开(公告)日：2015-10-06

申请号：US13615733

申请日：2012-09-14

申请人： Kentaro Mikawa

发明人： Kentaro Mikawa

IPC分类号： F02D41/00 ,  F02D13/02 ,  F02N19/00 ,  F01L1/344 ,  F01L1/352

CPC分类号： F02D41/009 ,  F01L1/344 ,  F01L1/352 ,  F01L2820/032 ,  F02D13/0238 ,  F02D2041/0095 ,  F02N19/004 ,  F02N2019/008 ,  Y02T10/142 ,  Y02T10/18 ,  Y02T10/42

摘要： Valve timing is held to a position close to a target value as much as possible while suppressing control errors of valve timing even though a crankshaft rotates in reverse. In an internal combustion engine which controls the valve timing by a variable valve timing mechanism (an electric VTC) driven by an electric motor, an intake valve timing is controlled after an output of an engine stop command such that: when the engine rotates in a forward direction, a real valve timing (a VTC real angle θr) detected by a sensor is converged to a target valve timing (a VTC target angle θtrg) advanced for the time of start; and when the engine rotates in a reverse direction, a manipulated variable of the electric VTC is set so that the VTC real angle θr is held to the VTC real angle θr detected just before the detection of the reverse rotation.

摘要翻译： 即使曲轴相反地旋转，也能尽可能地将气门正时保持在靠近目标值的位置，同时抑制气门正时的控制误差。 在通过由电动机驱动的可变气门正时机构（电VTC）来控制气门正时的内燃机中，在发动机停止指令输出后控制进气门正时，使得当发动机转速为 传感器检测到的实际气门正时（VTC实角＆amp; t）r被收敛到启动时提前的目标气门正时（VTC目标角＆amp; ttg）; 并且当发动机沿相反方向旋转时，设置电VTC的操纵变量，使得VTC实角＆amp; t被保持为在检测到反向旋转之前的VTC实际角度; r被检测到。

公开(公告)号：US20140232830A1

公开(公告)日：2014-08-21

申请号：US14347899

申请日：2012-10-01

申请人： Hitachi Automotive Sytems, Ltd.

发明人： Atsushi Ichige

IPC分类号： H04N13/02 ,  H04N13/00

CPC分类号： H04N13/239 ,  G03B35/08 ,  H04N13/111 ,  H04N13/128 ,  H04N13/133 ,  H04N2013/0081 ,  H04N2013/0088

摘要： In order to provide a stereoscopic imaging apparatus that can acquire, in a case in which a brightness different is large, parallax information containing a parallax image in all image capturing frames, provided are an image acquisition unit that acquires a first image and a second image different from the first image in exposure time, a gain and offset correction unit 102 that corrects brightness of one of the acquired first and second images, a parallax calculation unit 103 that calculates parallax from one of the images corrected by the brightness correction unit and the other of the images and outputs a parallax image and parallax information, and a combination image generation unit 105 that combines the acquired first and second images together to generate a combination image and outputs the generated combination image.

摘要翻译： 为了提供一种立体成像装置，其可以获得在亮度不同的情况下，在所有图像拍摄帧中包含视差图像的视差信息是获取第一图像和第二图像的图像获取单元 与曝光时间中的第一图像不同的增益和偏移校正单元102，其校正所获取的第一和第二图像之一的亮度;视差计算单元103，其从由亮度校正单元校正的图像之一中计算视差， 其他图像并输出视差图像和视差信息，以及组合图像生成单元105，其将获取的第一和第二图像组合在一起，以产生组合图像并输出所生成的组合图像。

公开(公告)号：US20120299449A1

公开(公告)日：2012-11-29

申请号：US13470738

申请日：2012-05-14

申请人： Toshio Ishikawa ,  Mitsuaki Izumi ,  Kunihiro Ohsawa

发明人： Toshio Ishikawa ,  Mitsuaki Izumi ,  Kunihiro Ohsawa

IPC分类号： H02K9/06

CPC分类号： H02K11/046 ,  H02K5/20 ,  H02K9/22

摘要： To provide a high-quality, high-output, and low-cost automotive alternator by suppressing heat generation through the reduction of current loss in a heat dissipating plate of a rectifier without expanding a space for placing the heat dissipating plate and reducing the cooling performance of the heat dissipating plate. An automotive alternator includes a rectifier, wherein the rectifier is configured such that a heat dissipating plate of positive pole to which the rectifier element of positive pole is mounted is disposed opposite to a heat dissipating plate of negative pole to which a plurality of rectifier elements of negative pole are mounted; wherein the heat dissipating plate of positive pole is made up of a first heat dissipating plate and a second heat dissipating plate, which are made of two different materials.

摘要翻译： 通过减少整流器的散热板的电流损耗来抑制发热，提供高质量，高产出和低成本的汽车交流发电机，而不会扩大用于放置散热板的空间并降低冷却性能 的散热板。 汽车交流发电机包括整流器，其中整流器被配置为使得正极整流元件安装的正极散热板与负极的散热板相对设置，多个整流元件 负极安装; 其中正极散热板由两种不同材料制成的第一散热板和第二散热板组成。

公开(公告)号：US10509973B2

公开(公告)日：2019-12-17

申请号：US15574374

申请日：2016-07-01

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Masayuki Takemura ,  Takeshi Nagasaki ,  Felipe Gomezcaballero ,  Takeshi Shima

IPC分类号： H04N13/254 ,  B60Q1/04 ,  B60R11/04 ,  H04N5/235 ,  G06K9/00 ,  H04N13/296 ,  B60R11/00

摘要： An onboard environment recognition device is obtained with which it is possible to improve recognition performance within the headlight illumination range and outside the headlight illumination range of a vehicle with an onboard camera. This onboard environment recognition device has: an imaging unit 100 for imaging, using a camera installed in the vehicle, at a wider-angle range than the headlight illumination range; an in-illumination/out-of-illumination exposure adjustment unit for setting appropriate exposure conditions separately within the headlight illumination range and outside the headlight illumination range; and a recognition unit 500 for recognizing images on the basis of the acquired images. Therefore, it is possible to maintain high recognition performance in the boundary regions of the headlight illumination range, and outside the range, and the present invention can also be used for wide-angle sensing at night.

公开(公告)号：US10389291B2

公开(公告)日：2019-08-20

申请号：US14855075

申请日：2015-09-15

申请人： Hitachi Automotive Systems, Ltd.

发明人： Yawara Kato

IPC分类号： H02P27/06 ,  H02P29/02 ,  H02M7/44 ,  H02P6/10 ,  H02P29/024 ,  B60L3/00 ,  B60L3/04 ,  B60L15/20 ,  B60W10/00

摘要： A motor drive device includes an inverter that drives a motor, a power source smoothing capacitor of the inverter, and a control unit that controls the inverter to drive the motor. The control unit precharges the capacitor with a power source voltage, and calculates a capacity value of the capacitor, based on a ratio of the power source voltage and a voltage with which the capacitor is charged, or an amount of time taken until the voltage with which the capacitor is charged, after the passage of a predetermined amount of time from the start of the precharge, reaches a voltage corresponding to the power source voltage. The control unit performs torque limitation of the motor when the capacity value of the capacitor has decreased.