JP2003329719A - Signal processor - Google Patents
Signal processorInfo
- Publication number
- JP2003329719A JP2003329719A JP2002136782A JP2002136782A JP2003329719A JP 2003329719 A JP2003329719 A JP 2003329719A JP 2002136782 A JP2002136782 A JP 2002136782A JP 2002136782 A JP2002136782 A JP 2002136782A JP 2003329719 A JP2003329719 A JP 2003329719A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- operating voltage
- devices
- diagnostic
- ecu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002159 abnormal effect Effects 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 6
- 238000003745 diagnosis Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 101100207370 Curvularia clavata TR07 gene Proteins 0.000 description 1
- 101100207368 Curvularia clavata kkR gene Proteins 0.000 description 1
- 101001125854 Homo sapiens Peptidase inhibitor 16 Proteins 0.000 description 1
- 101000701902 Homo sapiens Serpin B4 Proteins 0.000 description 1
- 102100029324 Peptidase inhibitor 16 Human genes 0.000 description 1
- 102100030326 Serpin B4 Human genes 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は信号処理装置、特に
車載機器等から出力されたダイアグ信号の正当性を評価
する装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing device, and more particularly to a device for evaluating the validity of a diagnostic signal output from a vehicle-mounted device or the like.
【０００２】[0002]
【従来の技術】従来より、車両には種々の制御装置が搭
載されている。例えば、エンジンとモータで車両を駆動
するハイブリッド車両においては、ＨＶ（ハイブリッ
ド）ＥＣＵ（電子制御装置）やＦＣ（燃料電池）セルＥ
ＣＵ、電池ＥＣＵ、高圧コンバータ等が存在し、検出し
た物理量やダイアグ信号を統括制御装置としてのＦＣＥ
ＣＵに供給している。ＦＣＥＣＵでは、これらの制御機
器から出力された信号を処理し、各機器に制御指令を送
信している。2. Description of the Related Art Conventionally, various control devices are mounted on vehicles. For example, in a hybrid vehicle in which a vehicle is driven by an engine and a motor, an HV (hybrid) ECU (electronic control device) or an FC (fuel cell) cell E
There is a CU, a battery ECU, a high-voltage converter, etc., and the detected physical quantity and diagnostic signal are FCEs as an integrated control device
It is supplied to the CU. The FCU ECU processes signals output from these control devices and sends control commands to each device.
【０００３】一般に、同一対象物の同一物理量について
複数の機器で測定してその結果を一つの処理装置に出力
する場合、処理装置では多数決論理回路により真の値を
判定する。多数決論理回路は、原理的に３つ以上の奇数
入力を有する論理演算回路であり、１か０のいずれか数
の多い入力に対応した出力が得られる回路である。この
多数決論理回路を用いることで、例えば３つの機器から
それぞれダイアグ信号が供給され、そのうち２つが「正
常」信号、残りの一つが「異常」信号である場合、多数
である「正常」信号が真の値であると判定する。Generally, when a plurality of devices measure the same physical quantity of the same object and output the result to one processing device, the processing device determines a true value by a majority logic circuit. The majority logic circuit is, in principle, a logical operation circuit having three or more odd inputs, and is a circuit which can obtain an output corresponding to a large number of inputs of 1 or 0. By using this majority logic circuit, for example, when three diagnostic signals are respectively supplied from three devices, two of which are “normal” signals and the other one is an “abnormal” signal, a large number of “normal” signals are true. It is determined to be the value of.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな多数決論理回路は、例えばＡＮＤゲートとＯＲゲー
トを複数個組み合わせて構成する必要があり、回路構成
が複雑化する問題がある。図３には、多数決論理演算回
路の一例が示されている。３入力Ａ，Ｂ，Ｃに対し、３
個のＡＮＤゲートと１個のＯＲゲートが必要となる。ま
た、多数決論理回路は３つ以上の奇数入力が必要であ
り、例えば同一対象物の同一物理量について２個の装置
から測定結果を出力する場合、いずれの出力が真である
かを判定することができない問題がある。特に、上述し
た車載機器の場合、例えばＨＶＥＣＵと高圧コンバータ
からモータについてのダイアグ信号が出力される、ある
いはＨＶＥＣＵと電池ＥＣＵから電池についてのダイア
グ信号が出力される等、２つの機器から同一対象物につ
いてのダイアグ信号が出力される場合も少なくなく、こ
れらの信号が入力されるＦＣＥＣＵでは、両ダイアグ信
号の内容が一致しない場合に簡易にかつ確実にその真偽
を判定することが要求される。However, such a majority logic circuit needs to be constructed by combining a plurality of AND gates and OR gates, for example, which causes a problem that the circuit configuration becomes complicated. FIG. 3 shows an example of a majority logic operation circuit. 3 for 3 inputs A, B, C
One AND gate and one OR gate are required. Further, the majority logic circuit requires three or more odd inputs. For example, when two devices output measurement results for the same physical quantity of the same object, it is possible to determine which output is true. There is a problem that cannot be done. In particular, in the case of the above-described in-vehicle device, for example, a diagnostic signal about a motor is output from the HVECU and the high-voltage converter, or a diagnostic signal about a battery is output from the HVECU and the battery ECU. In many cases, the F.A.D.C.D.signals are output, and the FCECU to which these signals are input is required to easily and surely determine the authenticity of the two F.A.D.
【０００５】本発明は、従来技術の有する課題に鑑みな
されたものであり、その目的は、簡易な構成で複数の装
置からの信号を処理でき、特に、複数の装置からの信号
内容が互いに矛盾する場合にもいずれが真かを判定する
ことができる装置を提供することにある。The present invention has been made in view of the problems of the prior art, and an object thereof is to be able to process signals from a plurality of devices with a simple structure, and in particular, the signal contents from the plurality of devices are inconsistent with each other. It is an object of the present invention to provide a device that can determine which is true in the case of doing so.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、同一対象物の同一物理量について測定す
る複数の測定装置からの複数の測定結果を処理する装置
であって、前記複数の測定結果が互いに一致するか否か
を判定する手段と、前記複数の測定結果が一致しない場
合に、前記複数の測定装置それぞれの作動電圧をその最
低作動電圧と比較し、最低作動電圧以上の作動電圧を有
する測定装置の測定結果を真と判定する手段とを有する
ことを特徴とする。In order to achieve the above object, the present invention is a device for processing a plurality of measurement results from a plurality of measuring devices for measuring the same physical quantity of the same object, Means for determining whether or not the measurement results match each other, and when the plurality of measurement results do not match, the operating voltage of each of the plurality of measuring devices is compared with its minimum operating voltage, Means for determining the measurement result of the measuring device having an operating voltage as true.
【０００７】本装置において、さらに、前記複数の装置
と共通電源との間の電圧降下分を用いて前記複数の測定
装置それぞれの作動電圧を算出する手段とを有すること
が好適である。It is preferable that the present apparatus further comprises means for calculating an operating voltage of each of the plurality of measuring devices by using a voltage drop between the plurality of devices and a common power source.
【０００８】また、本装置において、さらに、前記複数
の装置と共通電源との間の電圧降下分を前記複数の測定
装置毎に記憶する手段とを有することが好適である。Further, it is preferable that the present apparatus further comprises means for storing a voltage drop between the plurality of devices and a common power source for each of the plurality of measuring devices.
【０００９】本装置において、前記複数の測定装置は、
車載モータの作動状態を測定して正常あるいは異常の信
号を出力する装置とすることができる。In this device, the plurality of measuring devices are
The device can measure the operating state of the on-vehicle motor and output a normal or abnormal signal.
【００１０】また、本装置において、前記複数の測定装
置は、車載電池の状態を測定して正常あるいは異常の信
号を出力する装置とすることができる。Further, in the present device, the plurality of measuring devices may be devices that measure the state of the on-vehicle battery and output a normal or abnormal signal.
【００１１】[0011]
【発明の実施の形態】以下、図面に基づき本発明の実施
形態について、車載装置を例にとり説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings by taking an on-vehicle device as an example.
【００１２】図１には、本実施形態に係る車載システム
構成図が示されている。高圧コンバータ１２は、高圧電
圧を変換する装置であり、非駆動機器であるモータ（図
示せず）の温度や電流等を測定しモータの作動状態をダ
イアグ信号としてＦＣＥＣＵ１０に送信する。また、高
圧コンバータ１２は、ＦＣＥＣＵからの指令により高電
圧の変換を実行する。FIG. 1 is a block diagram of an in-vehicle system according to this embodiment. The high-voltage converter 12 is a device that converts a high-voltage, and measures the temperature, current, and the like of a motor (not shown) that is a non-driving device, and sends the operating state of the motor to the FCECU 10 as a diagnostic signal. The high-voltage converter 12 also performs high-voltage conversion according to a command from the FCECU.
【００１３】電池ＥＣＵ１４は、高圧電池１６の電圧や
温度、電流等を測定し、高圧電池１６の正常／異常を判
定してＦＣＥＣＵ１０に送信する。また、ＦＣＥＣＵ１
０から現在の車両のモード（エンジン駆動かモータ駆動
か）指令を受信する。The battery ECU 14 measures the voltage, temperature, current, etc. of the high voltage battery 16, determines whether the high voltage battery 16 is normal or abnormal, and sends it to the FC ECU 10. In addition, FCECU1
The current vehicle mode (engine drive or motor drive) command is received from 0.
【００１４】ＦＣセルＥＣＵ１８は、高圧スタック２０
（燃料電池）の電圧や温度などを測定し、高圧スタック
２０（燃料電池）の正常／異常を判定してＦＣＥＣＵ１
０に送信する。また、ＦＣＥＣＵ１０から現在の車両モ
ードを受信する。The FC cell ECU 18 includes a high pressure stack 20.
The FC ECU 1 measures the voltage and temperature of the (fuel cell) to determine whether the high-pressure stack 20 (fuel cell) is normal or abnormal.
Send to 0. Further, the current vehicle mode is received from the FC ECU 10.
【００１５】ＨＶＥＣＵ２２は、車両各部のＥＣＵ、例
えばボディＥＣＵ、ドアＥＣＵ、メータＥＣＵとデータ
通信を行い、またパワーステアリングＥＣＵに許可／不
許可を指令する。さらに、モータを駆動するインバータ
の作動状態を算出し、モータ（あるいはインバータ）の
正常／異常を判定してＦＣＥＣＵ１０に送信する。The HVECU 22 performs data communication with the ECUs of various parts of the vehicle, such as the body ECU, the door ECU, and the meter ECU, and commands the power steering ECU to permit / deny. Further, the operating state of the inverter that drives the motor is calculated, and the normality / abnormality of the motor (or the inverter) is determined and transmitted to the FCECU 10.
【００１６】ＦＣＥＣＵ１０は、高圧コンバータ１２か
らのモータ（あるいはインバータ）の正常／異常ダイア
グ信号、電池ＥＣＵ１４からの高圧電池１６の正常／異
常ダイアグ信号、ＦＣセルＥＣＵ１８からの高圧スタッ
ク２０の正常／異常ダイアグ信号、ＨＶＥＣＵ２２から
のモータ（あるインバータ）の正常／異常ダイアグ信号
を入力し、これらのダイアグ信号に基づき各機器を統括
制御する。各機器は共通の電源、すなわち車載の補機バ
ッテリ（端子電圧１２Ｖ）に接続され、補機バッテリか
らの電圧で作動する。The FC ECU 10 includes a normal / abnormal diagnostic signal of the motor (or the inverter) from the high voltage converter 12, a normal / abnormal diagnostic signal of the high voltage battery 16 from the battery ECU 14, and a normal / abnormal diagnostic signal of the high voltage stack 20 from the FC cell ECU 18. A signal and a normal / abnormal diagnosis signal of the motor (certain inverter) from the HVECU 22 are input, and each device is comprehensively controlled based on these diagnosis signals. Each device is connected to a common power source, that is, an in-vehicle auxiliary battery (terminal voltage 12V) and operates by the voltage from the auxiliary battery.
【００１７】一般に、ＦＣＥＣＵ１０に送信されるダイ
アグ信号は、同一対象物については複数の機器で一致す
るが、場合によっては複数のダイアグ信号が相互に一致
しない場合もあり得る。例えば、高圧コンバータ１２及
びＨＶＥＣＵ２２からモータ（あるいはインバータ）の
正常／異常ダイアグ信号が送信されるが、モータは正常
作動しているか異常作動しているかのいずれかであるか
ら、通常は両ダイアグ信号は一致するはずであるが、各
機器での測定値精度や動作状態に起因して、高圧コンバ
ータ１２からは異常のダイアグ信号が送信され、ＨＶＥ
ＣＵ２２からは正常のダイアグ信号が送信される場合
（あるいはその逆）もあり得る。このような場合、ＦＣ
ＥＣＵ１０では、いずれのダイアグ信号が真であるかを
判定して各機器に指令する必要がある。Generally, the diagnostic signals transmitted to the FCECU 10 are the same for a plurality of devices for the same object, but in some cases, the plurality of diagnostic signals may not match each other. For example, the normal / abnormal diagnosis signal of the motor (or the inverter) is transmitted from the high-voltage converter 12 and the HVECU 22, but since the motor is either operating normally or operating abnormally, normally both diagnostic signals are They should match, but due to the accuracy of the measured values and the operating state of each device, an abnormal diagnostic signal is sent from the high-voltage converter 12 and the HVE
There may be a case where a normal diagnostic signal is transmitted from the CU 22 (or vice versa). In such cases, FC
In the ECU 10, it is necessary to determine which diagnostic signal is true and to instruct each device.
【００１８】本実施形態においては、このように複数の
ダイアグ信号が互いに一致しない場合、ＦＣＥＣＵ１０
はダイアグ信号を送信した各機器が正常に動作している
か否か（正常にダイアグを行ったか否か）を各機器の作
動電圧に基づいて判定する。具体的には、各機器の作動
電圧を算出し、算出された作動電圧が各機器毎に予め定
められた最低作動電圧（正常に動作するために必要な電
圧の下限値）以上であるかを判定してダイアグ信号の真
偽を判定する。すなわち、ダイアグ信号を送信した機器
が最低作動電圧以上の電圧で作動している場合には、そ
の機器は正常にダイアグを実行しそのダイアグ信号は信
頼性の高いものであると判定する。一方、その作動電圧
が最低作動電圧を下回る場合には、その機器は正常にダ
イアグを実行しておらずそのダイアグ信号は信頼性が低
いと判定する。そして、送信された複数のダイアグ信号
のうち、最低作動電圧以上の電圧で正常に作動している
機器からのダイアグ信号を真であると判定する。In the present embodiment, when the plurality of diagnostic signals do not match each other in this way, the FCECU 10
Determines whether or not each device that has transmitted the diagnostic signal is operating normally (whether or not the diagnostic process has been performed normally) based on the operating voltage of each device. Specifically, the operating voltage of each device is calculated, and whether the calculated operating voltage is equal to or higher than a predetermined minimum operating voltage (lower limit value of voltage required for normal operation) predetermined for each device. Then, the authenticity of the diagnostic signal is determined. That is, when the device that has transmitted the diagnosis signal is operating at a voltage equal to or higher than the minimum operating voltage, the device normally executes the diagnosis and determines that the diagnosis signal is highly reliable. On the other hand, when the operating voltage is lower than the minimum operating voltage, the device does not normally execute the diag and it is determined that the diag signal is unreliable. Then, of the plurality of transmitted diagnostic signals, the diagnostic signal from the device that is normally operating at a voltage equal to or higher than the minimum operating voltage is determined to be true.
【００１９】各機器の作動電圧は、各機器が共通の電源
に接続されていることを利用して以下のように算出され
る。すなわち、ＦＣＥＣＵ１０はまず自身のコネクタ電
圧（補機バッテリに接続されているコネクタ部の電圧）
を検出し、補機バッテリと自身との間の電圧降下分（電
圧ドロップ）に基づき、現在の補機バッテリの電圧を算
出する。例えば、コネクタ部の電圧が９Ｖであり、自身
の電圧降下分が０．５Ｖである場合、現在の補機バッテ
リの電圧は９．５Ｖであると算出される。次に、予めメ
モリに記憶された補機バッテリと各機器との電圧降下デ
ータを用い、各機器の現在の作動電圧を算出する。The operating voltage of each device is calculated as follows by utilizing the fact that each device is connected to a common power source. That is, the FCECU 10 first has its own connector voltage (the voltage of the connector portion connected to the auxiliary battery).
Is detected and the current voltage of the auxiliary battery is calculated based on the voltage drop (voltage drop) between the auxiliary battery and itself. For example, when the voltage of the connector part is 9V and the voltage drop of itself is 0.5V, the current voltage of the auxiliary battery is calculated to be 9.5V. Next, the current operating voltage of each device is calculated using the voltage drop data between the auxiliary battery and each device stored in advance in the memory.
【００２０】表１には、各機器の電圧降下分（電圧ドロ
ップ）が例示されている。Table 1 exemplifies the voltage drop (voltage drop) of each device.
【００２１】[0021]
【表１】
表において、例えばＨＶＥＣＵ２２の電圧降下分は０．
５Ｖであり、高圧コンバータ１２の電圧効果分は０．７
Ｖである。なお、表には各機器の最低作動電圧も併せて
示されている。各機器の最低作動電圧も同様にメモリに
記憶される。ＦＣＥＣＵ１０は、補機バッテリの電圧を
算出した後、各機器毎に記憶された電圧降下分との差分
を演算することで各機器の作動電圧を算出する。例え
ば、補機バッテリ電圧が１０Ｖである場合、ＨＶＥＣＵ
２２の作動電圧は９．５Ｖ、高圧コンバータ１２の作動
電圧は９．３Ｖと算出できる。もちろん、ＦＣＥＣＵ１
０のコネクタ電圧をＶ、ＦＣＥＣＵ１０の電圧降下分を
ΔＶ、ダイアグ信号を送信した機器の電圧降下分をΔ
Ｖ’として、Ｖｘ＝Ｖ＋（ΔＶ−ΔＶ’）により機器の
作動電圧Ｖｘを算出してもよい。すなわち、ＦＣＥＣＵ
１０のメモリには、各機器の電圧降下分のデータではな
く、自身の電圧降下分との差分値（ΔＶ−ΔＶ’）を記
憶してもよい。各機器の作動電圧を算出した後、ＦＣＥ
ＣＵ１０は算出した作動電圧と各機器毎にメモリに記憶
されている最低作動電圧と大小比較し、作動電圧が最低
作動電圧以上であるか否かを判定できる。[Table 1] In the table, for example, the voltage drop of the HVECU 22 is 0.
5V, the voltage effect of the high-voltage converter 12 is 0.7
V. The table also shows the minimum operating voltage of each device. The minimum operating voltage of each device is similarly stored in the memory. After calculating the voltage of the auxiliary battery, the FCECU 10 calculates the operating voltage of each device by calculating the difference from the voltage drop stored for each device. For example, when the auxiliary battery voltage is 10V, HVECU
The operating voltage of 22 can be calculated as 9.5V, and the operating voltage of the high-voltage converter 12 can be calculated as 9.3V. Of course, FC ECU1
The connector voltage of 0 is V, the voltage drop of the FCECU10 is ΔV, and the voltage drop of the device that transmitted the diagnostic signal is ΔV.
As V ′, the operating voltage Vx of the device may be calculated by Vx = V + (ΔV−ΔV ′). That is, FC ECU
The memory 10 may store not the data of the voltage drop of each device but the difference value (ΔV−ΔV ′) from the voltage drop of the device itself. After calculating the operating voltage of each device, FCE
The CU 10 compares the calculated operating voltage with the minimum operating voltage stored in the memory for each device to determine whether the operating voltage is equal to or higher than the minimum operating voltage.
【００２２】図２には、本実施形態におけるＦＣＥＣＵ
１０の処理フローチャートが示されている。まず、ＦＣ
ＥＣＵ１０は、各機器からダイアグデータを入力する
（Ｓ１０１）。ダイアグデータは例えば所定の周期で定
期的に入力する（各機器は定期的に診断プログラムを実
行してダイアグデータを送信する）。例えば、高圧コン
バータ１２及びＨＶＥＣＵ２２からモータ（あるいはイ
ンバータ）についてのダイアグデータを入力する。次
に、入力した複数（ここでは２つ）のダイアグデータの
内容が一致するか否かを判定する（Ｓ１０２）。２つの
ダイアグデータが一致する場合、例えば高圧コンバータ
１２及びＨＶＥＣＵ２２からのダイアグデータがともに
「正常」信号である場合には、モータ（インバータ）は
正常に動作していると判定できる。一方、２つのダイア
グデータが一致していない場合、例えば、高圧コンバー
タ１２は「異常」データを示し、ＨＶＥＣＵ２２は「正
常」データを示している場合、ＦＣＥＣＵ１０はいずれ
のダイアグデータが真であるかを判定する処理に移行す
る。すなわち、メモリに予め記憶された電圧降下分につ
いてのデータを用いて各機器の作動電圧を算出する（Ｓ
１０３）。各機器の作動電圧を算出するに際し、まず自
身のコネクタ電圧を検出することは上述した通りであ
る。その後、補機バッテリの端子電圧を算出して各機器
の電圧降下分を用いて各機器の作動電圧を算出するか、
あるいは自身の電圧降下分との差分値を用いて各機器の
作動電圧を算出する。この結果、例えば高圧コンバータ
１２の作動電圧は８．３Ｖ、ＨＶＥＣＵ２２の作動電圧
は８．５Ｖ等と算出される。FIG. 2 shows the FC ECU of this embodiment.
A processing flowchart of 10 is shown. First, FC
The ECU 10 inputs diagnostic data from each device (S101). The diagnostic data is periodically input, for example, in a predetermined cycle (each device periodically executes the diagnostic program and transmits diagnostic data). For example, the diagnostic data about the motor (or the inverter) is input from the high-voltage converter 12 and the HVECU 22. Next, it is determined whether or not the contents of a plurality of (two in this case) diagnostic data that have been input match (S102). If the two pieces of diagnostic data match, for example, if the diagnostic data from the high-voltage converter 12 and the diagnostic data from the HVECU 22 are both "normal" signals, it can be determined that the motor (inverter) is operating normally. On the other hand, when the two diagnostic data do not match, for example, the high-voltage converter 12 indicates “abnormal” data and the HVECU 22 indicates “normal” data, the FCECU 10 determines which diagnostic data is true. The process moves to the determination process. That is, the operating voltage of each device is calculated using the data about the voltage drop stored in advance in the memory (S
103). When calculating the operating voltage of each device, first, the connector voltage of itself is detected, as described above. After that, the terminal voltage of the auxiliary battery is calculated and the operating voltage of each device is calculated using the voltage drop of each device, or
Alternatively, the operating voltage of each device is calculated using the difference value from the voltage drop of itself. As a result, for example, the operating voltage of the high-voltage converter 12 is calculated to be 8.3V, the operating voltage of the HVECU 22 is calculated to be 8.5V, and the like.
【００２３】各機器の作動電圧を算出した後、作動電圧
が各機器毎の最低作動電圧Ｖｍｉｎ以上となるか否かを
判定し、最低作動電圧以上の機器のダイアグデータを採
用する（Ｓ１０４）。上述の例では、ＨＶＥＣＵ２２の
作動電圧は８．５Ｖであり、最低作動電圧Ｖｍｉｎ＝８
Ｖであるため最低作動電圧以上であるが、高圧コンバー
タ１２の作動電圧は８．３Ｖであり、最低作動電圧Ｖｍ
ｉｎ＝９Ｖより下回っている。したがって、Ｓ１０４で
はＨＶＥＣＵ２２からのダイアグデータを真なるデータ
として採用し、高圧コンバータ１２からのダイアグデー
タは高圧コンバータ１２が正常に動作していないため偽
のダイアグデータを送信したものとして無視する。すな
わち、ＦＣＥＣＵ１０は、モータは正常に動作している
ものと判定する。After calculating the operating voltage of each device, it is determined whether the operating voltage is equal to or higher than the minimum operating voltage Vmin of each device, and the diagnostic data of the device having the minimum operating voltage or higher is adopted (S104). In the above example, the operating voltage of the HVECU 22 is 8.5V, and the minimum operating voltage Vmin = 8.
However, the operating voltage of the high-voltage converter 12 is 8.3 V, which is the minimum operating voltage Vm.
It is lower than in = 9V. Therefore, in S104, the diagnostic data from the HVECU 22 is adopted as the true data, and the diagnostic data from the high-voltage converter 12 is ignored because the high-voltage converter 12 is not operating normally and the false diagnostic data is transmitted. That is, the FC ECU 10 determines that the motor is operating normally.
【００２４】このように、本実施形態においては各機器
の作動電圧が最低作動電圧以上であって各機器が正常に
動作しているか否かを判定することでそのダイアグデー
タの真偽を判定するものである。従って、多数決論理回
路のように３つ以上の奇数入力である必要はなく、２つ
以上の任意の入力についてその真偽を判定することが可
能である。As described above, in the present embodiment, the authenticity of the diagnostic data is determined by determining whether the operating voltage of each device is equal to or higher than the minimum operating voltage and each device is operating normally. It is a thing. Therefore, it is not necessary to have three or more odd inputs as in the majority logic circuit, and it is possible to determine the true / false of any two or more inputs.
【００２５】なお、本実施形態において、２つの機器か
らのダイアグデータが一致せず、かつ、両機器の作動電
圧とも最低作動電圧を下回る場合には、ＦＣＥＣＵ１０
はダイアグの判定を行わないものとする。In this embodiment, if the diagnostic data from the two devices do not match and the operating voltages of both devices are below the minimum operating voltage, the FCECU 10
Does not judge the diagnosis.
【００２６】また、本実施形態においては、高圧コンバ
ータ１２とＨＶＥＣＵ２２からの２つのダイアグ信号が
入力される場合について示したが、例えば電池ＥＣＵ１
４とＨＶＥＣＵ２２からのダイアグ信号が入力される場
合、あるいはＦＣセルＥＣＵ１８とＨＶＥＣＵ２２から
のダイアグ信号が入力される場合についても同様にその
真偽を判定することが可能である。Further, in the present embodiment, the case where two diagnostic signals from the high voltage converter 12 and the HVECU 22 are input has been described, but for example, the battery ECU 1
4 and the HVECU 22 input the diagnosis signal, or the FC cell ECU 18 and the HVECU 22 input the diagnosis signal, the authenticity can be determined in the same manner.
【００２７】また、本実施形態では、２つのダイアグ信
号の内容が一致しない場合にのみ２つの機器の作動電圧
をそれぞれ最低作動電圧と大小比較しているが、２つの
ダイアグ信号の内容が一致する場合にも確認の意味でそ
れぞれの作動電圧を最低作動電圧と比較してもよい。こ
の場合にも、ＦＣＥＣＵ１０は作動電圧が最低作動電圧
以上の機器からのダイアグ信号を最終的に真と判定する
ことになる。In the present embodiment, the operating voltages of the two devices are compared with the minimum operating voltage only when the contents of the two diagnostic signals do not match, but the contents of the two diagnostic signals match. In this case, each operating voltage may be compared with the minimum operating voltage for confirmation. Also in this case, the FC ECU 10 finally determines that the diagnostic signal from the device whose operating voltage is equal to or higher than the minimum operating voltage is true.
【００２８】さらに、本実施形態では、車載機器を例に
とり説明したが、メインの制御機器があり、メインの制
御機器に対してダイアグ信号を送信する複数の制御機器
が存在する任意のシステムに適用することが可能であ
る。Further, although the present embodiment has been described by taking the in-vehicle device as an example, the present invention is applied to any system in which there is a main control device and there are a plurality of control devices for transmitting a diagnostic signal to the main control device. It is possible to
【００２９】[0029]
【発明の効果】以上説明したように、本発明によれば簡
易な構成で、かつ複数の入力信号についてその真偽を判
定して処理することが可能となる。As described above, according to the present invention, it is possible to process a plurality of input signals by judging the authenticity of a plurality of input signals with a simple structure.
【図１】 実施形態の構成ブロック図である。FIG. 1 is a configuration block diagram of an embodiment.
【図２】 実施形態の処理フローチャートである。FIG. 2 is a processing flowchart of an embodiment.
【図３】 論理演算回路の構成図である。FIG. 3 is a configuration diagram of a logical operation circuit.
１０ ＦＣＥＣＵ、１２ 高圧コンバータ、１４ 電池
ＥＣＵ、１６ 高圧電池、１８ ＦＣセルＥＣＵ、２０
高圧スタック、２２ ＨＶＥＣＵ。10 FC ECU, 12 high voltage converter, 14 battery ECU, 16 high voltage battery, 18 FC cell ECU, 20
High pressure stack, 22 HVECU.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０１Ｒ 35/00 Ｂ６０Ｋ 6/04 // Ｇ０１Ｍ 17/007 Ｇ０１Ｍ 17/00 Ｈ Ｆターム(参考） 2G035 AA01 AA26 AB02 AC15 AD27 AD28 2G036 AA27 BA12 BA36 BA37 BA38 5H115 PA08 PC06 PG04 PI11 PI16 PU01 PV09 TR01 TR04 TR05 TR07 TR19 UB05 UB17 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) G01R 35/00 B60K 6/04 // G01M 17/007 G01M 17/00 HF term (reference) 2G035 AA01 AA26 AB02 AC15 AD27 AD28 2G036 AA27 BA12 BA36 BA37 BA38 5H115 PA08 PC06 PG04 PI11 PI16 PU01 PV09 TR01 TR04 TR05 TR07 TR19 UB05 UB17
Claims (5)
る複数の測定装置からの複数の測定結果を処理する装置
であって、 前記複数の測定結果が互いに一致するか否かを判定する
手段と、 前記複数の測定結果が一致しない場合に、前記複数の測
定装置それぞれの作動電圧をその最低作動電圧と比較
し、最低作動電圧以上の作動電圧を有する測定装置の測
定結果を真と判定する手段と、 を有することを特徴とする信号処理装置。1. A device for processing a plurality of measurement results from a plurality of measurement devices for measuring the same physical quantity of the same object, and means for determining whether or not the plurality of measurement results match each other, When the plurality of measurement results do not match, means for comparing the operating voltage of each of the plurality of measuring devices with its minimum operating voltage, and determining the measurement result of the measuring device having an operating voltage equal to or higher than the minimum operating voltage as true. A signal processing device comprising:
前記複数の測定装置それぞれの作動電圧を算出する手段
と、 を有することを特徴とする信号処理装置。2. The device according to claim 1, further comprising means for calculating an operating voltage of each of the plurality of measuring devices by using a voltage drop between the plurality of devices and a common power source. A signal processing device characterized by:
数の測定装置毎に記憶する手段と、を有することを特徴
とする信号処理装置。3. The device according to claim 2, further comprising a unit that stores a voltage drop between the plurality of devices and a common power source for each of the plurality of measurement devices. Processing equipment.
おいて、 前記複数の測定装置は、車載モータの作動状態を測定し
て正常あるいは異常の信号を出力する装置であることを
特徴とする信号処理装置。4. The device according to claim 1, wherein the plurality of measuring devices are devices that measure an operating state of an in-vehicle motor and output a normal or abnormal signal. Signal processing device.
おいて、 前記複数の測定装置は、車載電池の状態を測定して正常
あるいは異常の信号を出力する装置であることを特徴と
する信号処理装置。5. The device according to claim 1, wherein the plurality of measurement devices are devices that measure a state of a vehicle-mounted battery and output a normal or abnormal signal. Signal processing device.
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|---|---|---|---|
| JP2002136782A JP4042467B2 (en) | 2002-05-13 | 2002-05-13 | Signal processing device |
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| Publication Number | Publication Date |
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| JP4042467B2 JP4042467B2 (en) | 2008-02-06 |
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