VEHICULAR CONTROL DEVICE AND CONTROL METHOD THEREFOR

• Main Author: TOYAMA NAOTO
• Format: Patent
• Language: English; Japanese
• Published: 22.03.2019
• Subjects: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide a vehicular control device and a control method therefor capable of preventing a battery death due to power consumption of a battery in a state in which a control part is not started up.SOLUTION: A vehicular control device comprises: a control part for controlling supply of a voltage from a battery to a light emission device; a first switch whose one end is connected to an input node between a battery positive electrode and one end of a light emission device; a power source circuit which is connected to the other end of the first switch, which converts a battery voltage into a start voltage when the first switch is turned on, and supplies the start voltage to the control part; a second switch whose one end is connected to the input node; an input circuit which is connected to the other end of the second switch, and inputs an instruction voltage for instructing the control part to control supply of voltage to the light emission device when the second switch is turned on; and a switching element which is connected between the input circuit and a stationary potential, which is turned on in a state in which the second switch is an on-state, for controlling the input circuit to input the instruction voltage.SELECTED DRAWING: Figure 1 【課題】制御部が起動していない状態でのバッテリの電力消費によるバッテリあがりを防止することができる車両用制御装置および車両用制御装置の制御方法を提供する。【解決手段】バッテリから発光装置への電圧の供給を制御する制御部と、一端がバッテリ正極と発光装置の一端との間の入力ノードに接続された第１スイッチと、第１スイッチの他端に接続され、第１スイッチがオンした場合にバッテリ電圧を起動電圧に変換して制御部に供給する電源回路と、一端が入力ノードに接続された第２スイッチと、第２スイッチの他端に接続され、第２スイッチがオンした場合に制御部に発光装置への電圧の供給の制御を指示する指示電圧を入力する入力回路と、入力回路と固定電位との間に接続され、第２スイッチがオンした状態でオンすることで、指示電圧を入力するように入力回路を制御するスイッチング素子と、を備える。【選択図】図１