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1. 发明授权

US11010225B2 Electronic control unit including a break-output section configured to output a break signal to interrupt an input of a monitoring signal to an external monitoring circuit 有权
公开(公告)号：US11010225B2
公开(公告)日：2021-05-18
申请号：US16288523
申请日：2019-02-28
申请人： DENSO CORPORATION
发明人： Daichi Marui , Mitsuru Aoki
IPC分类号： G06F11/00 , G06F11/07 , F02D41/26 , F02D11/10 , H01H47/00 , G06F11/30 , G06F11/22
摘要： An electronic control unit includes a computer that outputs a monitoring signal and an external monitoring circuit that monitors a state of the computer based on the monitoring signal. The computer includes a monitoring signal output section that generates and outputs the monitoring signal to the external monitoring circuit by performing a software process; a self-diagnostic section that self-diagnoses the computer and detects an abnormality by identifying a cause of the abnormality; and a break signal output section that outputs a break signal to interrupt an input of the monitoring signal to the external monitoring circuit by performing a hardware process when an abnormality in the monitoring signal output section is detected.

2. 发明授权

US09477542B2 Electronic control unit 有权
标题翻译：电子控制单元
公开(公告)号：US09477542B2
公开(公告)日：2016-10-25
申请号：US14525259
申请日：2014-10-28
申请人： DENSO CORPORATION
发明人： Mitsuru Aoki
IPC分类号： G06F11/07
CPC分类号： G06F11/0757 , G06F11/0739 , G06F11/076
摘要： An ECU having a microcomputer for controlling a control object includes: a detection device that detects an anomalous operation of the microcomputer; a first reset device that outputs a reset signal for the microcomputer when the detection device detects the anomalous operation; a failsafe control device that executes a failsafe control operation for controlling the control object to be safer than the control object before resetting the microcomputer when the microcomputer is reset to a normal state; a counting device that counts a number of times of occurrence of the anomalous operation when the detection device detects the anomalous operation again after the failsafe control device starts to execute the failsafe control operation; and a second reset device that outputs the reset signal and holds an output of the reset signal when the number of times of occurrence reaches a predetermined number of times.
摘要翻译：具有用于控制控制对象的微型计算机的ECU包括：检测微型计算机异常运行的检测装置; 第一复位装置，当检测装置检测到异常操作时，输出微机的复位信号; 故障保护控制装置，当微型计算机复位到正常状态时，执行用于在将微型计算机复位之前将控制对象控制得比控制对象更安全的故障保护控制装置; 计数装置，在所述故障保护控制装置开始执行所述故障保护控制动作之后，当所述检测装置再次检测出异常动作时，对所述异常动作的发生次数进行计数; 以及第二复位装置，当发生次数达到预定次数时，输出复位信号并保持复位信号的输出。

3. 发明授权

US10447139B2 Load driving apparatus 有权
公开(公告)号：US10447139B2
公开(公告)日：2019-10-15
申请号：US15701661
申请日：2017-09-12
申请人： DENSO CORPORATION
发明人： Yasuhiko Harada , Mitsuru Aoki
IPC分类号： H03B1/00 , H03K3/00 , H02M1/08 , H02M3/156 , H02P8/12 , H02M3/158 , H02M1/00 , H02M3/155
摘要： A load driving apparatus supplies an electric power to a load via a full-bridge circuit. The load driving apparatus detects a load current by a current sensing resistor. A controller in the load driving apparatus generates a drive signal by switching between a first reference circuit outputting a first reference signal with a first reference cycle and a second reference signal outputting a second reference signal with a second reference cycle. A calculator in the load driving apparatus is used to supply a drive signal to the full-bridge circuit for supplying power to the load. When the controller 13 detects that the value of the load current is not reaching predetermined current threshold values, within either of the first reference cycle or the second reference cycle due to temperature fluctuations, the controller switches to either the first reference circuit or the second reference circuit to stabilize the value of the load current around an average value.

4. 发明授权

US11128120B2 Inductive load control device 有权
公开(公告)号：US11128120B2
公开(公告)日：2021-09-21
申请号：US16889951
申请日：2020-06-02
申请人： DENSO CORPORATION
发明人： Yasuhiko Harada , Mitsuru Aoki
IPC分类号： H02H3/16 , H01F7/06 , H02H1/00
摘要： In an inductive load control device, an energization controller controls an operation of an H-bridge circuit to switch from an energized state to a regenerative state when a load current value is equal to or greater than a first threshold value at a time after a mask time has elapsed from a start time of a reference cycle, and a short-circuit determination processor determines whether the short-circuit abnormality has occurred based on whether the load current value is equal to or greater than a second threshold value greater than the first threshold value. The short-circuit determination processor further determines whether the short-circuit abnormality has occurred based on the regenerative current value in the regenerative state when the load current value does not reach the second threshold value within the mask time.

5. 发明授权

US10088882B2 Electronic control unit having multiple power supply routes for microcomputer core 有权
公开(公告)号：US10088882B2
公开(公告)日：2018-10-02
申请号：US15071253
申请日：2016-03-16
申请人： DENSO CORPORATION
发明人： Mitsuru Aoki
IPC分类号： G06F1/26
摘要： An electronic control unit includes a microcomputer, a power supply IC and a peripheral circuit part. The microcomputer includes a core operable with a first power supply voltage and an input/output circuit operable with a second power supply voltage higher than the first power supply voltage. The power supply IC generates the first power supply voltage and the second power supply voltage. The peripheral circuit part has a first input terminal for the first power supply voltage, a second input terminal for the second power supply voltage, and an internal circuit operable with a potential between the first power supply voltage and the second power supply voltage. A core input terminal for the first power supply voltage, a first output terminal for the first power supply voltage in the power supply IC and the first input terminal are electrically connected one another.

6. 发明授权

US11323053B2 Bipolar stepper motor driving device 有权
公开(公告)号：US11323053B2
公开(公告)日：2022-05-03
申请号：US16812635
申请日：2020-03-09
申请人： DENSO CORPORATION
发明人： Kenta Imamiya , Mitsuru Aoki , Yasuhiko Harada
IPC分类号： H02P8/38
摘要： A bipolar stepper motor driving device drives a stepper motor including stator coils having plural phases. The bipolar stepper motor driving device includes H-bridge circuits, a current detector, a control circuit, and a re-turning-on instruction unit. The H-bridge circuits are provided correspondingly to the phases of the respective stator coils. The current detector detects current flowing in the stator coils. The control circuit executes drive control of the H-bridge circuits. The re-turning-on instruction unit commands the control circuit to switch into a short-circuited state a stator coil which has shifted from an energized state to an off-state among the stator coils, on a condition that an absolute value of a reverse current detected by the current detector has changed from a value larger than a threshold current value to a value smaller than the threshold current value.

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