JP2002199510A5 - - Google Patents
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- JP2002199510A5 JP2002199510A5 JP2000400991A JP2000400991A JP2002199510A5 JP 2002199510 A5 JP2002199510 A5 JP 2002199510A5 JP 2000400991 A JP2000400991 A JP 2000400991A JP 2000400991 A JP2000400991 A JP 2000400991A JP 2002199510 A5 JP2002199510 A5 JP 2002199510A5
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Description
【０００６】
【課題を解決するための手段】
請求項１に記載の発明による電圧検出装置は、複数の単位電池で構成される電気車用組電池を電源として駆動する車両に適用され、所定の電圧を発生する電圧発生回路と、単位電池ごとに設けられ、電圧発生回路にて発生された電圧と単位電池の電圧とを検出する電圧検出回路と、電圧検出回路で単位電池の電圧が検出されている時には、電圧検出回路で検出される電圧に応じて単位電池の充電状態を診断する一方、電圧検出回路で電圧発生回路から発生された電圧が検出されている時には、電圧検出回路で検出される電圧に応じて電圧検出回路の故障診断を行う診断装置とを備えることを特徴とする。
請求項２に記載の発明による電圧検出装置は、複数の単位電池で構成される電気車用組電池を電源として駆動する車両に適用され、所定の電圧を発生する電圧発生回路と、単位電池ごとに設けられ、電圧発生回路にて発生された電圧と単位電池の電圧とを検出する電圧検出回路と、電圧検出回路で単位電池の電圧が検出されている時には、電圧検出回路で検出される電圧に応じて単位電池の充電状態を診断する一方、電圧検出回路で電圧発生回路から発生された電圧が検出されている時には、電圧検出回路で検出される電圧に応じて電圧検出回路の故障診断を行う第１の診断装置と、電圧検出回路で検出される電圧と第１の診断装置による診断結果とに基づいて、電圧検出回路および第１の診断装置の故障診断を行う第２の診断装置とを備えることを特徴とする。
請求項３に記載の発明は、請求項２に記載の電気車用組電池の電圧検出装置において、第１の診断装置と第２の診断装置との間で電圧検出回路による検出電圧と第１の診断装置による診断結果とを授受する通信回路をさらに備え、第２の診断装置は、授受された検出電圧と診断結果とに基づいて、通信回路の故障診断をさらに行うことを特徴とする。
請求項４に記載の発明は、請求項１〜請求項３のいずれか一項に記載の電気車用組電池の電圧検出装置において、電圧検出回路と単位電池間の接続をオン／オフする第１のスイッチ回路と、電圧発生回路と電圧検出回路間の接続をオン／オフする第２のスイッチ回路とをさらに備え、電圧検出回路は、第１のスイッチ回路がオンされるとともに第２のスイッチ回路がオフされることによって単位電池に接続されて単位電池の電圧を検出し、第１のスイッチ回路がオフされるとともに第２のスイッチ回路がオンされることによって電圧発生回路に接続されて電圧発生回路から発生された電圧を検出することを特徴とする。
請求項５に記載の発明は、請求項１〜請求項４のいずれか一項に記載の電気車用組電池の電圧検出装置において、単位電池ごとに設けられ、診断装置により単位電池の容量の調整が必要と診断された場合に当該単位電池を放電させる容量調整回路をさらに備え、電圧発生回路により発生された電圧が容量調整回路を介して電圧検出回路に印加されることを特徴とする。
0006
[Means for solving problems]
The voltage detection device according to the invention according to claim 1 is applied to a vehicle driven by an electric vehicle assembly battery composed of a plurality of unit batteries as a power source, and has a voltage generation circuit that generates a predetermined voltage and each unit battery. A voltage detection circuit that detects the voltage generated by the voltage generation circuit and the voltage of the unit battery, and a voltage detected by the voltage detection circuit when the voltage of the unit battery is detected by the voltage detection circuit. While diagnosing the charge state of the unit battery according to, when the voltage generated from the voltage generation circuit is detected by the voltage detection circuit, the failure diagnosis of the voltage detection circuit is performed according to the voltage detected by the voltage detection circuit. It is characterized by being provided with a diagnostic device for performing.
The voltage detection device according to the invention according to claim 2 is applied to a vehicle driven by an electric vehicle assembly battery composed of a plurality of unit batteries as a power source, and has a voltage generation circuit that generates a predetermined voltage and each unit battery. A voltage detection circuit that detects the voltage generated by the voltage generation circuit and the voltage of the unit battery, and a voltage detected by the voltage detection circuit when the voltage of the unit battery is detected by the voltage detection circuit. While diagnosing the charge state of the unit battery according to, when the voltage generated from the voltage generation circuit is detected by the voltage detection circuit, the failure diagnosis of the voltage detection circuit is performed according to the voltage detected by the voltage detection circuit. A first diagnostic device to be performed, and a second diagnostic device to perform failure diagnosis of the voltage detection circuit and the first diagnostic device based on the voltage detected by the voltage detection circuit and the diagnosis result by the first diagnostic device. It is characterized by having.
The invention according to claim 3 is the voltage detection device for the assembled battery for an electric vehicle according to claim 2, wherein the voltage detected by the voltage detection circuit and the first one between the first diagnostic device and the second diagnostic device. The second diagnostic device further includes a communication circuit for exchanging and receiving the diagnosis result by the diagnostic device of the above, and the second diagnostic device further performs a failure diagnosis of the communication circuit based on the transmitted and received detection voltage and the diagnosis result.
The invention according to claim 4 turns on / off the connection between the voltage detection circuit and the unit battery in the voltage detection device for the assembled battery for an electric vehicle according to any one of claims 1 to 3. The voltage detection circuit further includes a switch circuit of 1 and a second switch circuit for turning on / off the connection between the voltage generation circuit and the voltage detection circuit. The voltage detection circuit is a second switch when the first switch circuit is turned on. When the circuit is turned off, it is connected to the unit battery to detect the voltage of the unit battery, and when the first switch circuit is turned off and the second switch circuit is turned on, it is connected to the voltage generating circuit and the voltage. It is characterized by detecting the voltage generated from the generating circuit.
The invention according to claim 5 is provided for each unit battery in the voltage detection device for the assembled battery for an electric vehicle according to any one of claims 1 to 4, and the capacity of the unit battery is determined by the diagnostic device. It is further provided with a capacity adjusting circuit for discharging the unit battery when it is diagnosed that adjustment is necessary, and the voltage generated by the voltage generating circuit is applied to the voltage detecting circuit via the capacity adjusting circuit.
【０００８】
【発明の効果】
以上詳細に説明したように本発明によれば、次のような効果を奏する。
（１）請求項１〜５に記載の発明では、電圧検出回路により単位電池の電圧が検出される時は単位電池の充電状態を診断する一方、電圧検出回路により所定の電圧が検出される時は電圧検出回路の故障診断を行うようにした。したがって、従来技術のような２つの電圧検出回路による故障診断を不要にし、１つの電圧検出回路で単位電池の電圧検出と故障診断とを行うことができる。この結果、部品数を削減して装置のコストが低減されるとともに、部品数の減少にともなって装置の信頼性が向上する。
（２）請求項２、３に記載の発明ではさらに、電圧検出回路により検出した所定の電圧値と、この電圧値に応じて電圧検出回路の故障診断を行う第１の診断装置による診断結果とに基づいて、第２の診断装置が電圧検出回路および第１の診断装置の故障診断を行うようにした。したがって、第１の診断装置の故障と電圧検出回路の故障とを独立して判定できるから、故障発生時に復旧作業がしやすくなる。
（３）請求項３に記載の発明では、第１の診断装置と第２の診断装置との間に設けられる通信回路の故障も判定できるから、故障発生時に復旧作業がしやすくなる。
（４）請求項５に記載の発明では、電圧発生回路による発生電圧を容量調整回路を介して電圧検出回路に印加するようにしたので、故障診断のために新たな回路を追加する必要がない。この結果、装置のコスト上昇を抑えることができる。
0008
【Effect of the invention】
As described in detail above, according to the present invention, the following effects are obtained.
(1) In the inventions according to claims 1 to 5 , when the voltage of the unit battery is detected by the voltage detection circuit, the charging state of the unit battery is diagnosed, while when a predetermined voltage is detected by the voltage detection circuit. Made to diagnose the failure of the voltage detection circuit. Therefore, it is possible to eliminate the need for failure diagnosis by two voltage detection circuits as in the prior art, and to perform voltage detection and failure diagnosis of the unit battery by one voltage detection circuit. As a result, the number of parts is reduced, the cost of the device is reduced, and the reliability of the device is improved as the number of parts is reduced.
(2) In the invention according to claims 2 and 3, further, a predetermined voltage value detected by the voltage detection circuit and a diagnosis result by the first diagnostic device that diagnoses a failure of the voltage detection circuit according to the voltage value. Based on the above, the second diagnostic device is made to perform failure diagnosis of the voltage detection circuit and the first diagnostic device. Therefore, since the failure of the first diagnostic device and the failure of the voltage detection circuit can be independently determined, the recovery work becomes easy when the failure occurs.
(3) In the invention according to claim 3, since it is possible to determine a failure of the communication circuit provided between the first diagnostic device and the second diagnostic device, it becomes easier to perform recovery work when a failure occurs.
(4) In the invention according to claim 5, since the voltage generated by the voltage generating circuit is applied to the voltage detection circuit via the capacitance adjusting circuit, it is not necessary to add a new circuit for failure diagnosis. .. As a result, it is possible to suppress an increase in the cost of the device.
Claims (5)
所定の電圧を発生する電圧発生回路と、
前記単位電池ごとに設けられ、前記電圧発生回路にて発生された電圧と前記単位電池の電圧とを検出する電圧検出回路と、
前記電圧検出回路で前記単位電池の電圧が検出されている時には、前記電圧検出回路で検出される電圧に応じて前記単位電池の充電状態を診断する一方、前記電圧検出回路で前記電圧発生回路から発生された電圧が検出されている時には、前記電圧検出回路で検出される電圧に応じて前記電圧検出回路の故障診断を行う診断装置とを備えることを特徴とする電気車用組電池の電圧検出装置。 In a vehicle that is driven by using an assembled battery for an electric vehicle composed of a plurality of unit batteries as a power source,
A voltage generation circuit for generating a predetermined voltage;
A voltage detection circuit that is provided for each unit battery and detects a voltage generated by the voltage generation circuit and a voltage of the unit battery;
When the voltage of the unit battery is detected by the voltage detection circuit, the state of charge of the unit battery is diagnosed according to the voltage detected by the voltage detection circuit, while the voltage detection circuit A voltage detection method for an assembled battery for an electric vehicle, comprising: a diagnosis device that diagnoses a failure of the voltage detection circuit according to a voltage detected by the voltage detection circuit when a generated voltage is detected apparatus.
所定の電圧を発生する電圧発生回路と、 A voltage generating circuit for generating a predetermined voltage;
前記単位電池ごとに設けられ、前記電圧発生回路にて発生された電圧と前記単位電池の電圧とを検出する電圧検出回路と、 A voltage detection circuit that is provided for each unit battery and detects a voltage generated by the voltage generation circuit and a voltage of the unit battery;
前記電圧検出回路で前記単位電池の電圧が検出されている時には、前記電圧検出回路で検出される電圧に応じて前記単位電池の充電状態を診断する一方、前記電圧検出回路で前記電圧発生回路から発生された電圧が検出されている時には、前記電圧検出回路で検出される電圧に応じて前記電圧検出回路の故障診断を行う第１の診断装置と、 When the voltage of the unit battery is detected by the voltage detection circuit, the state of charge of the unit battery is diagnosed according to the voltage detected by the voltage detection circuit, while the voltage detection circuit A first diagnostic device that performs fault diagnosis of the voltage detection circuit according to the voltage detected by the voltage detection circuit when the generated voltage is detected;
前記電圧検出回路で検出される電圧と前記第１の診断装置による診断結果とに基づいて、前記電圧検出回路および前記第１の診断装置の故障診断を行う第２の診断装置とを備えることを特徴とする電気車用組電池の電圧検出装置。 A second diagnostic device that performs a failure diagnosis of the voltage detection circuit and the first diagnostic device based on a voltage detected by the voltage detection circuit and a diagnosis result by the first diagnostic device. A voltage detection device for an assembled battery for an electric vehicle.
前記第１の診断装置と前記第２の診断装置との間で前記電圧検出回路による検出電圧と前記第１の診断装置による診断結果とを授受する通信回路をさらに備え、 A communication circuit for exchanging a detection voltage by the voltage detection circuit and a diagnosis result by the first diagnosis device between the first diagnosis device and the second diagnosis device;
前記第２の診断装置は、前記授受された検出電圧と診断結果とに基づいて、前記通信回路の故障診断をさらに行うことを特徴とする電気車用組電池の電圧検出装置。 The voltage diagnostic device for an assembled battery for an electric vehicle, wherein the second diagnostic device further performs a failure diagnosis of the communication circuit based on the received detection voltage and a diagnosis result.
前記電圧検出回路と前記単位電池間の接続をオン／オフする第１のスイッチ回路と、 A first switch circuit for turning on / off the connection between the voltage detection circuit and the unit battery;
前記電圧発生回路と前記電圧検出回路間の接続をオン／オフする第２のスイッチ回路とをさらに備え、 A second switch circuit for turning on / off the connection between the voltage generation circuit and the voltage detection circuit;
前記電圧検出回路は、前記第１のスイッチ回路がオンされるとともに前記第２のスイッチ回路がオフされることによって前記単位電池に接続されて前記単位電池の電圧を検出し、前記第１のスイッチ回路がオフされるとともに前記第２のスイッチ回路がオンされることによって前記電圧発生回路に接続されて前記電圧発生回路から発生された電圧を検出することを特徴とする電気車用組電池の電圧検出装置。 The voltage detection circuit detects the voltage of the unit battery connected to the unit battery when the first switch circuit is turned on and the second switch circuit is turned off, and the first switch The voltage of the assembled battery for an electric vehicle, wherein the voltage generated from the voltage generation circuit is detected by being connected to the voltage generation circuit when the circuit is turned off and the second switch circuit is turned on Detection device.
前記単位電池ごとに設けられ、前記診断装置により前記単位電池の容量の調整が必要と診断された場合に当該単位電池を放電させる容量調整回路をさらに備え、 A capacity adjustment circuit that is provided for each unit battery and discharges the unit battery when the diagnostic device diagnoses that the capacity of the unit battery needs to be adjusted;
前記電圧発生回路により発生された電圧が前記容量調整回路を介して前記電圧検出回路に印加されることを特徴とする電気車用組電池の電圧検出装置。 The voltage detection device for an assembled battery for an electric vehicle, wherein the voltage generated by the voltage generation circuit is applied to the voltage detection circuit via the capacity adjustment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000400991A JP3698056B2 (en) | 2000-12-28 | 2000-12-28 | Voltage detection device for battery pack for electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000400991A JP3698056B2 (en) | 2000-12-28 | 2000-12-28 | Voltage detection device for battery pack for electric vehicles |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005078975A Division JP3804682B2 (en) | 2005-03-18 | 2005-03-18 | Voltage detection device for an assembled battery for vehicles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002199510A JP2002199510A (en) | 2002-07-12 |
| JP2002199510A5 true JP2002199510A5 (en) | 2005-09-02 |
| JP3698056B2 JP3698056B2 (en) | 2005-09-21 |
Family
ID=18865485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000400991A Expired - Fee Related JP3698056B2 (en) | 2000-12-28 | 2000-12-28 | Voltage detection device for battery pack for electric vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3698056B2 (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100507469B1 (en) | 2003-03-05 | 2005-08-09 | 현대자동차주식회사 | Method and apparatus for detecting voltage of a battery module of an electric vehicle |
| JP4381239B2 (en) | 2004-06-25 | 2009-12-09 | 三洋電機株式会社 | Power supply for vehicle |
| KR100669434B1 (en) | 2005-04-07 | 2007-01-15 | 삼성에스디아이 주식회사 | Method for controlling secondary battery module |
| KR100717789B1 (en) | 2005-07-29 | 2007-05-11 | 삼성에스디아이 주식회사 | Method for estimating soc of secondary battery module |
| JP4195026B2 (en) | 2005-08-24 | 2008-12-10 | 矢崎総業株式会社 | Battery charge state adjustment device |
| KR100740097B1 (en) | 2005-10-20 | 2007-07-16 | 삼성에스디아이 주식회사 | Method of estimating SOC for battery and battery management system using the same |
| KR100739054B1 (en) | 2005-10-20 | 2007-07-12 | 삼성에스디아이 주식회사 | Battery management system and method for measuring cell voltage of the battery |
| JP4370297B2 (en) | 2005-11-25 | 2009-11-25 | 矢崎総業株式会社 | Battery management device |
| JP4553853B2 (en) * | 2006-02-23 | 2010-09-29 | 三洋電機株式会社 | Power supply for vehicle |
| JP4974593B2 (en) | 2006-06-23 | 2012-07-11 | 三洋電機株式会社 | Power supply for vehicle |
| KR100796668B1 (en) | 2006-09-26 | 2008-01-22 | 삼성에스디아이 주식회사 | Battery management system and driving method thereof |
| JP4707638B2 (en) * | 2006-09-30 | 2011-06-22 | 三洋電機株式会社 | Power supply for vehicle |
| KR100859688B1 (en) | 2006-10-12 | 2008-09-23 | 삼성에스디아이 주식회사 | Battery management system and driving method thereof |
| KR100814884B1 (en) | 2006-10-16 | 2008-03-20 | 삼성에스디아이 주식회사 | Battery management system and driving method thereof |
| KR100839381B1 (en) | 2006-11-01 | 2008-06-20 | 삼성에스디아이 주식회사 | Battery management system and driving method thereof |
| KR100882913B1 (en) | 2007-03-19 | 2009-02-10 | 삼성에스디아이 주식회사 | Battery Pack |
| JP5250230B2 (en) * | 2007-09-28 | 2013-07-31 | 株式会社日立製作所 | Power supply system for vehicle and integrated circuit for battery cell control |
| JP5219486B2 (en) * | 2007-12-12 | 2013-06-26 | 三洋電機株式会社 | Pack battery |
| JP5224095B2 (en) * | 2007-12-27 | 2013-07-03 | 株式会社Ｇｓユアサ | Battery management device for battery pack |
| JP5049162B2 (en) * | 2008-02-18 | 2012-10-17 | パナソニック株式会社 | Fault diagnosis circuit and battery pack provided with the same |
| JP4715856B2 (en) * | 2008-03-25 | 2011-07-06 | トヨタ自動車株式会社 | Power supply system failure determination method |
| JP5297729B2 (en) * | 2008-09-09 | 2013-09-25 | 矢崎総業株式会社 | Voltage detector |
| JP5308770B2 (en) * | 2008-10-27 | 2013-10-09 | 日置電機株式会社 | Short-circuit fault inspection method for input switching relay switch in multi-channel input measuring device |
| JP5593553B2 (en) * | 2009-02-27 | 2014-09-24 | 株式会社日立製作所 | Battery monitoring device |
| JP5221468B2 (en) | 2009-02-27 | 2013-06-26 | 株式会社日立製作所 | Battery monitoring device |
| JP4969662B2 (en) * | 2010-02-24 | 2012-07-04 | 日立オートモティブシステムズ株式会社 | Vehicle control device |
| JP6150821B2 (en) * | 2013-02-08 | 2017-06-21 | 住友建機株式会社 | Excavator and control method of excavator |
-
2000
- 2000-12-28 JP JP2000400991A patent/JP3698056B2/en not_active Expired - Fee Related
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