JP2022544898A - 瞬時電圧低下検出回路及び車載診断システム - Google Patents
瞬時電圧低下検出回路及び車載診断システム Download PDFInfo
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- JP2022544898A JP2022544898A JP2021577536A JP2021577536A JP2022544898A JP 2022544898 A JP2022544898 A JP 2022544898A JP 2021577536 A JP2021577536 A JP 2021577536A JP 2021577536 A JP2021577536 A JP 2021577536A JP 2022544898 A JP2022544898 A JP 2022544898A
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 239000003990 capacitor Substances 0.000 claims abstract description 52
- 238000004146 energy storage Methods 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0808—Diagnosing performance data
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
本願は、出願番号が201910777986.6で、2019年8月22日にて出願された中国特許出願に基づき出願されたものであり、この中国特許出願に基づく優先権を主張し、その内容の全てを参照により本願に組み込むものとする。
Claims (10)
- 2つのRC回路と、コンパレータと、判断ユニットと、を含み、
前記RC回路の各々は、第1抵抗、第2抵抗、及びエネルギー蓄積コンデンサを含み、
前記第1抵抗の第1端子は、被測定電圧を受け、前記第1抵抗の第2端子は、前記第2抵抗の第1端子に接続され、前記第2抵抗の第2端子は接地され、前記エネルギー蓄積コンデンサは、前記第2抵抗と並列に接続されており、前記第2抵抗の第1端子は、前記RC回路の出力端子を構成し、
2つの前記RC回路の出力端子は、前記コンパレータの2つの入力端子にそれぞれ対応して接続され、前記コンパレータの出力端子は、前記判断ユニットに接続されており、
2つの前記RC回路は、前記第2抵抗と前記第1抵抗との抵抗値比率が異なり、前記エネルギー蓄積コンデンサの容量が異なり、前記第2抵抗と前記第1抵抗との抵抗値比率が大きいほうの前記RC回路における前記エネルギー蓄積コンデンサの容量が小さく、
前記判断ユニットは、少なくとも、前記コンパレータが反転したことを検出した場合、前記被測定電圧が瞬間的に低下したと判定する、瞬時電圧低下検出回路。 - 前記被測定電圧は、点火装置に電力を供給する電池電源から出力される電圧であり、
前記点火装置の点火時に、前記被測定電圧は瞬間的に低下する、請求項1に記載の瞬時電圧低下検出回路。 - 前記判断ユニットは、さらに、前記点火装置の位置するシステムからの信号であって、前記点火装置の点火前と点火後で変化する補助検出信号を受信し、
前記判断ユニットは、前記コンパレータが反転し、かつ前記補助検出信号が変化したことを検出した場合、前記被測定電圧が瞬間的に低下したと判定する、請求項2に記載の瞬時電圧低下検出回路。 - 前記検出回路は、2つのダイオードをさらに含み、2つの前記RC回路における前記第1抵抗の第1端子は、2つの前記ダイオードにそれぞれ対応して接続されて、前記ダイオードを介して前記被測定電圧を受ける、請求項1に記載の瞬時電圧低下検出回路。
- 2つの前記RC回路は、それぞれ第1のRC回路及び第2のRC回路とし、
前記第1のRC回路における前記エネルギー蓄積コンデンサは、並列に接続された第1サブコンデンサ及び第2サブコンデンサを含み、前記第1サブコンデンサの容量は、前記RC回路における前記エネルギー蓄積コンデンサの容量と等しく、前記第1のRC回路における前記第2抵抗の抵抗値は、前記第2のRC回路における前記第2抵抗の抵抗値と等しく、前記第1のRC回路における前記第1抵抗の抵抗値は、前記第2のRC回路における前記第1抵抗の抵抗値よりも大きい、請求項1に記載の瞬時電圧低下検出回路。 - 前記検出回路は、電圧変換ユニットをさらに含み、
前記判断ユニットは、前記電圧変換ユニットを介して前記補助検出信号を受信する、請求項3に記載の瞬時電圧低下検出回路。 - 前記電圧変換ユニットは、第3抵抗、第4抵抗、電子スイッチ、プルアップ抵抗、及びプルアップ電源を含み、
前記第3抵抗の第1端子は、前記補助検出信号を受信し、前記第3抵抗の第2端子は、前記第4抵抗の第1端子に接続され、前記第4抵抗の第2端子は接地され、前記電子スイッチの制御端子は、前記第4抵抗の第1端子に接続され、前記電子スイッチの第1導通端子は、前記プルアップ抵抗を介して前記プルアップ電源に接続されるとともに、前記判断ユニットに接続されており、前記電子スイッチの第2導通端子は接地されている、請求項6に記載の瞬時電圧低下検出回路。 - 前記電子スイッチは、トライオードである、請求項7に記載の瞬時電圧低下検出回路。
- 前記判断ユニットは、前記点火装置の位置するシステムの主制御チップである、請求項1に記載の瞬時電圧低下検出回路。
- 請求項1乃至請求項9のうちのいずれか1項に記載の瞬時電圧低下検出回路を備えた車載診断システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910777986.6A CN112415294A (zh) | 2019-08-22 | 2019-08-22 | 电压瞬间下降的检测电路及车载诊断系统 |
CN201910777986.6 | 2019-08-22 | ||
PCT/CN2020/084508 WO2021031584A1 (zh) | 2019-08-22 | 2020-04-13 | 电压瞬间下降的检测电路及车载诊断系统 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2022544898A true JP2022544898A (ja) | 2022-10-24 |
JPWO2021031584A5 JPWO2021031584A5 (ja) | 2023-04-07 |
JP7462686B2 JP7462686B2 (ja) | 2024-04-05 |
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JP2021577536A Active JP7462686B2 (ja) | 2019-08-22 | 2020-04-13 | 瞬時電圧低下検出回路及び車載診断システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US11926271B2 (ja) |
EP (1) | EP4019985B1 (ja) |
JP (1) | JP7462686B2 (ja) |
KR (1) | KR20220050094A (ja) |
CN (1) | CN112415294A (ja) |
WO (1) | WO2021031584A1 (ja) |
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-
2019
- 2019-08-22 CN CN201910777986.6A patent/CN112415294A/zh active Pending
-
2020
- 2020-04-13 US US17/624,432 patent/US11926271B2/en active Active
- 2020-04-13 JP JP2021577536A patent/JP7462686B2/ja active Active
- 2020-04-13 EP EP20855013.7A patent/EP4019985B1/en active Active
- 2020-04-13 WO PCT/CN2020/084508 patent/WO2021031584A1/zh unknown
- 2020-04-13 KR KR1020217042795A patent/KR20220050094A/ko unknown
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Publication number | Publication date |
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US11926271B2 (en) | 2024-03-12 |
EP4019985A1 (en) | 2022-06-29 |
EP4019985A4 (en) | 2022-11-02 |
CN112415294A (zh) | 2021-02-26 |
EP4019985B1 (en) | 2023-09-13 |
JP7462686B2 (ja) | 2024-04-05 |
KR20220050094A (ko) | 2022-04-22 |
US20220363208A1 (en) | 2022-11-17 |
WO2021031584A1 (zh) | 2021-02-25 |
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