Invention Grant
- Patent Title: Electronic control unit
- Patent Title (中): 电子控制单元
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Application No.: US14873493Application Date: 2015-10-02
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Publication No.: US09588579B2Publication Date: 2017-03-07
- Inventor: Akito Itou , Naoki Maeda , Masayuki Tsuda , Atsuko Yokoyama
- Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Kariya JP Toyota
- Assignee: DENSO CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: DENSO CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Kariya JP Toyota
- Agency: Posz Law Group, PLC
- Priority: JP2014-205682 20141006
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/32 ; G06F1/26

Abstract:
An electronic control unit includes a microcomputer, a monitoring unit, a clock-generating oscillator circuit, a first power circuit supplying power to the microcomputer, and a second power circuit supplying power to the monitor microcomputer. The first power circuit includes a first switching power source including a first transistor and a first series power source including a second transistor. The second power circuit includes a second switching power source including a third transistor and a second series power source including a fourth transistor. Further, the ECU includes a power control circuit controlling each of the transistors and an oscillation stop detection circuit. When a stop of oscillation is detected, the power control circuit switches ON the second transistor, and switches OFF the fourth transistor, thereby diminishing a no-monitoring period of the microcontroller during a stop of the clock output.
Public/Granted literature
- US20160098077A1 ELECTRONIC CONTROL UNIT Public/Granted day:2016-04-07
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