公开(公告)号：US09678101B2

公开(公告)日：2017-06-13

申请号：US14356769

申请日：2012-12-03

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Toshiaki Nakamura ,  Masahide Hayashi ,  Masaru Yamashita

IPC: G01P15/00 ,  G01P21/00 ,  G01C19/5776 ,  G01P15/125 ,  G01P3/00 ,  G01P15/097 ,  G01P15/18

CPC classification number: G01P21/00 ,  G01C19/5776 ,  G01P3/00 ,  G01P15/00 ,  G01P15/097 ,  G01P15/125 ,  G01P15/18

Abstract: Provided is a sensor signal output apparatus that outputs a sensor signal at times of the sensor being in steady operation and outputs the operational status of the sensor instead of the sensor signal when the sensor is at fault or in non-steady operation in order to thereby to have a receiver machine obtain a correct sensor signal. The sensor signal output apparatus includes a sensor detecting a physical quantity, a diagnosis part diagnosing the operating state of the sensor, and a communication part transmitting the result of detection by the sensor and the result of diagnosis by the diagnosis part. When the sensor is determined to be normally operating, the communication part selectively outputs the result of detection by the sensor. When the sensor is not determined to be normally operating, the communication part selectively outputs a signal indicative of the operating state of the sensor.

公开(公告)号：US11247702B2

公开(公告)日：2022-02-15

申请号：US16956386

申请日：2018-12-04

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Hideyuki Sakamoto ,  Tadanobu Toba ,  Toshiaki Nakamura

IPC: B60W60/00 ,  B60W30/095 ,  B60W50/02 ,  B60W50/023 ,  B60W50/04 ,  G01C21/34 ,  G05B9/02

Abstract: Even in a case where an operation abnormality occurs in the arithmetic processing unit of the control device, control is safely shifted to the degeneration control microcomputer, and a vehicle control device capable of improving safety is realized.
There are provided an outside world recognition microcomputer 10b, a control microcomputer 11b that outputs a control command to the actuator control device, and a degeneration control microcomputer 12b to which control is shifted in a case where an abnormality occurs in the control microcomputer 11b. The outside world recognition microcomputer 10b calculates a collision potential based on information from the outside world, and determines whether to reset the control microcomputer 11b when an abnormality occurs in the control microcomputer 11b or to shift control to the degeneration control microcomputer 12b.

公开(公告)号：US09123188B2

公开(公告)日：2015-09-01

申请号：US13963235

申请日：2013-08-09

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Toshiaki Nakamura ,  Masahide Hayashi

IPC: G07C5/08 ,  B60T8/88 ,  G05B23/02

CPC classification number: G07C5/08 ,  B60T8/885 ,  G05B23/0221 ,  G07C5/0808

Abstract: Provided is an acceleration detection apparatus installed in a vehicle and including a plurality of acceleration sensors having different characteristics, a function to input diagnosis signals in order to diagnose the outputs of the acceleration sensors and diagnose the fault detection functions while the vehicle stops, and a function to compare the outputs of the sensors in order to detect a fault while the vehicle runs.

Abstract translation: 提供一种安装在车辆中的加速度检测装置，其具有具有不同特性的多个加速度传感器，具有输入诊断信号的功能，以便诊断加速度传感器的输出并在车辆停止时诊断故障检测功能， 用于比较传感器的输出，以便在车辆行驶时检测故障。

公开(公告)号：US20140130596A1

公开(公告)日：2014-05-15

申请号：US14129054

申请日：2012-06-20

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Toshiaki Nakamura ,  Masahiro Matsumoto ,  Hiroshi Iwasawa ,  Satoshi Asano ,  Masahide Hayashi

IPC: G01P3/42

CPC classification number: G01P3/42 ,  G01C19/5726

Abstract: The purpose of the present invention is to achieve accurate angular velocity detection even when an angular velocity detection sensor is set in an environment in which oscillation and electromagnetic noise have significant influence. Provided is an angular velocity detection device which has an oscillating body displaceable in first and second directions that are perpendicular to each other, and which detects, as an angular velocity, a displacement of the oscillating body in the second direction while the oscillating body is being oscillated in the first direction, wherein in accordance with a frequency change in a drive signal for oscillating the oscillating body in the first direction, the frequency of a servo signal for detecting the angular velocity from the quantity of displacement in the second direction is changed (see FIG. 1).

Abstract translation: 本发明的目的在于即使将角速度检测传感器设置在振荡和电磁噪声具有显着影响的环境中，也能够实现精确的角速度检测。 提供了一种角速度检测装置，其具有在第一和第二方向上彼此垂直的摆动体，并且在摆动体为第二方向时，以角速度检测振动体在第二方向上的位移 在第一方向上振荡，其中根据用于在第一方向上振动振荡体的驱动信号的频率变化，改变用于从第二方向上的位移量检测角速度的伺服信号的频率（ 参见图1）。

公开(公告)号：US09939267B2

公开(公告)日：2018-04-10

申请号：US15304640

申请日：2015-04-08

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Toshiaki Nakamura ,  Heewon Jeong ,  Masahide Hayashi

IPC: G01C19/5726 ,  H01L29/84

CPC classification number: G01C19/5726 ,  H01L29/84

Abstract: The purpose of the present invention is to provide an inertial force detection device that can more accurately detect faults in a temperature sensor. Provided is an inertial force detection device configured so that in a state where an oscillating body is made to oscillate in a first direction, the amount of displacement when the oscillating body is displaced in a second direction due to the generation of angular velocity is detected as angular velocity, wherein the inertial force detection device has a means for performing control so that the oscillating body enters a state of resonance in the first direction, a temperature detection means for detecting temperature, and a means for detecting faults in the temperature detection means, and outputs a plurality of signals, which indicate the fault detection results of the three means, continuously from a single signal wire.

公开(公告)号：US20140336976A1

公开(公告)日：2014-11-13

申请号：US14356769

申请日：2012-12-03

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Toshiaki Nakamura ,  Masahide Hayashi ,  Masaru Yamashita

IPC: G01P21/00 ,  G01P3/00 ,  G01P15/00

CPC classification number: G01P21/00 ,  G01C19/5776 ,  G01P3/00 ,  G01P15/00 ,  G01P15/097 ,  G01P15/125 ,  G01P15/18

Abstract: Provided is a sensor signal output apparatus that outputs a sensor signal at times of the sensor being in steady operation and outputs the operational status of the sensor instead of the sensor signal when the sensor is at fault or in non-steady operation in order to thereby to have a receiver machine obtain a correct sensor signal. The sensor signal output apparatus includes a sensor detecting a physical quantity, a diagnosis part diagnosing the operating state of the sensor, and a communication part transmitting the result of detection by the sensor and the result of diagnosis by the diagnosis part. When the sensor is determined to be normally operating, the communication part selectively outputs the result of detection by the sensor. When the sensor is not determined to be normally operating, the communication part selectively outputs a signal indicative of the operating state of the sensor.

Abstract translation: 提供了一种传感器信号输出装置，其在传感器处于稳定操作的时候输出传感器信号，并且当传感器处于故障或非稳定操作时输出传感器的操作状态而不是传感器信号，从而 使接收机获得正确的传感器信号。 传感器信号输出装置包括检测物理量的传感器，诊断传感器的操作状态的诊断部分和由传感器传送检测结果的通信部分和诊断部分的诊断结果。 当传感器被确定为正常操作时，通信部件选择性地输出传感器的检测结果。 当传感器未被确定为正常操作时，通信部件选择性地输出表示传感器的操作状态的信号。