JPH11103503A - Control device of hybrid vehicle - Google Patents

Control device of hybrid vehicle

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Publication number
JPH11103503A
JPH11103503A JP26350197A JP26350197A JPH11103503A JP H11103503 A JPH11103503 A JP H11103503A JP 26350197 A JP26350197 A JP 26350197A JP 26350197 A JP26350197 A JP 26350197A JP H11103503 A JPH11103503 A JP H11103503A
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Prior art keywords
battery
remaining
capacity
generation
generator
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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.)
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JP26350197A
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Japanese (ja)
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JP3409661B2 (en )
Inventor
Takeshi Aso
Hiroyuki Hirano
Ryuichi Idoguchi
Eiji Inada
Yutaro Kaneko
Toshio Kikuchi
Shinichiro Kitada
隆一 井戸口
眞一郎 北田
弘之 平野
英二 稲田
俊雄 菊池
雄太郎 金子
剛 麻生
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Nissan Motor Co Ltd
日産自動車株式会社
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7005Batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y02T10/7077Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors on board the vehicle

Abstract

PROBLEM TO BE SOLVED: To improve a battery life, the efficiency of an entire vehicle, power performance, and exhaust emission control performance, by determining the amount of generation of a generator based on a remaining capacity and its change rate and then driving, and controlling an engine and the generator according to the amount of generation. SOLUTION: Remaining capacity of a battery 4 is detected, thus calculating the change rate of the remaining capacity. Then, the amount of generation of a generator 5 is determined based on the remaining capacity and its change rate, and an engine 7 and the generator 5 are controlled and driven according to the amount of generation. Therefore, even if the remaining capacity of the battery 4 changes due to, for example, variations among vehicles, the aging of the battery 4, and the driving condition of the vehicles, the fluctuation in the charging/discharging balance of the battery 4, can be suppressed, thus extending the life of the battery 4. Also, the remaining capacity of the battery 4 becomes stable and the efficiency of the entire vehicle and power performance and then generation due to engine drive become stable, thus improving exhaust emission control performance.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、ハイブリッド車両に搭載される発電機、エンジン、モーターおよびバッテリーを制御する制御装置に関する。 The present invention relates to the generator mounted on a hybrid vehicle, an engine, a control device for controlling the motor and the battery.

【0002】 [0002]

【従来の技術】エンジンにより発電機を駆動して発電を行い、走行用モーターとバッテリーに電力を供給するシリーズ・ハイブリッド車両が知られており、エンジン車両の排気と燃費の問題を解決しながら、電気自動車の航続距離を延長するものとして注目されている(例えば、 2. Description of the Prior Art engine to generate electricity to drive the generator, traction motor and the battery are known series hybrid vehicle for supplying power to, while solving the engine vehicle emissions and fuel consumption of the problem, It has attracted attention as to extend the driving range of electric vehicles (e.g.,
特開平6−245620号公報参照)。 See Japanese Patent Application Laid-Open No. 6-245620). このシリーズ・ This Series
ハイブリッド車両の制御装置では、バッテリーの充電量SOCが設定値以上のときは、バッテリーの充電電力をモーターに供給して走行している。 In the control apparatus for a hybrid vehicle, when the charge level SOC of the battery is equal to or greater than a set value, running to supply charging power of the battery to the motor. バッテリーの充電量が設定値よりも低下したときは、エンジンにより発電機を駆動し、発電機の発電電力をモーターに供給して駆動するとともに、バッテリーに供給して充電を行っている。 When battery charge is lower than the set value, to drive the generator by the engine, to drive the generated power of the generator is supplied to the motor, it is charging by supplying the battery. そして、バッテリーの充電量が増加してふたたび設定値を超えると、エンジンを停止して発電機による発電を終了している。 Then, when the battery charge exceeds again setting value increases, and terminates the power generation by the generator to stop the engine.

【0003】 [0003]

【発明が解決しようとする課題】ところで、バッテリーの寿命、車両全体の効率や動力性能などを向上させるためには、バッテリーの充放電収支を一定に保つことが望ましいが、従来のハイブリッド車両の制御装置ではバッテリーの充放電収支についてはまったく考慮されていない。 [SUMMARY OF THE INVENTION Incidentally, the life of the battery, in order to improve the overall efficiency and power performance vehicles, it is desirable to keep the charge-discharge balance of the battery constant, the control of the conventional hybrid vehicle in the device has not been considered at all for the charge-discharge balance of the battery.

【0004】本発明の目的は、バッテリーの寿命、車両全体の効率や動力性能、排気浄化性能を向上させることにある。 An object of the present invention, battery life, the overall efficiency and power performance vehicles, is to improve the exhaust purification performance.

【0005】 [0005]

【課題を解決するための手段】 In order to solve the problems]

(1) 請求項1の発明は、エンジンにより発電機を駆動して発電を行い、走行用モーターとバッテリーに電力を供給するハイブリッド車両の制御装置に適用される。 (1) The invention of claim 1 performs electric drives a generator by the engine, is applied to a control apparatus for a hybrid vehicle for supplying electric power to the traction motor and batteries.
そして、バッテリーの残存容量を検出する残存容量検出手段と、残存容量の変化率を算出する変化率算出手段と、残存容量と残存容量の変化率とに基づいて発電機の発電量を決定する発電量決定手段と、この発電量にしたがってエンジンと発電機を駆動制御する駆動制御手段とを備える。 The power to determine the remaining capacity detecting means for detecting a remaining capacity of the battery, the change rate calculating means for calculating a change rate of the remaining capacity, the power generation amount of the generator based on the remaining capacity and the remaining capacity variation rate and quantity determining means, and a drive control means for controlling driving of the engine and a generator in accordance with the power generation amount. (2) 請求項2のハイブリッド車両の制御装置は、変化率算出手段によって、時間に対する残存容量の変化率を算出するようにしたものである。 (2) control device for a hybrid vehicle according to claim 2, the change rate calculating means, in which to calculate the rate of change in the remaining capacity versus time. (3) 請求項3のハイブリッド車両の制御装置は、車両の走行距離を検出する走行距離検出手段を備え、変化率算出手段によって、走行距離に対する残存容量の変化率を算出するようにしたものである。 (3) The control apparatus for a hybrid vehicle according to claim 3, comprising a travel distance detecting means for detecting a travel distance of the vehicle, the change rate calculating means, which has to calculate the change rate of the remaining capacity to the travel distance is there. (4) 請求項4のハイブリッド車両の制御装置は、発電量決定手段によって、残存容量の変化率が増加するときは発電量を減らし、残存容量の変化率が減少するときは発電量を増やすようにしたものである。 (4) The control apparatus for a hybrid vehicle according to claim 4, the power generation amount determining means, when the rate of change of the remaining capacity is increased to reduce the amount of power generation, when the rate of change of the remaining capacity is decreased so as to increase the power generation amount it is obtained by the. (5) 請求項5のハイブリッド車両の制御装置は、発電量決定手段によって、所定の最大発電量と最小発電量の範囲内で発電量を決定するようにしたものである。 (5) The control apparatus for a hybrid vehicle according to claim 5, the power generation amount determining means, is obtained so as to determine the power generation amount within a predetermined maximum power generation amount and the minimum amount of power generation. (6) 請求項6のハイブリッド車両の制御装置は、車速を検出する車速検出手段と、バッテリーの温度を検出する温度検出手段と、モーターの入力電力を算出する入力電力算出手段と、車速、バッテリー温度および入力電力に基づいて、発電量決定手段により決定された発電量を補正する発電量補正手段とを備える。 (6) The control apparatus for a hybrid vehicle according to claim 6, a vehicle speed detecting means for detecting a vehicle speed, a temperature detector that detects a temperature of the battery, the input power calculating means for calculating the input power of the motor, the vehicle speed, battery based on the temperature and input power, and a power generation amount correction means for correcting the power generation amount determined by the power generation amount determining means.

【0006】 [0006]

【発明の効果】 【Effect of the invention】

(1) 請求項1の発明によれば、バッテリーの残存容量を検出し、残存容量の変化率を算出する。 (1) According to the present invention, to detect the remaining capacity of the battery, calculating the rate of change of the remaining capacity. そして、残存容量と残存容量の変化率とに基づいて発電機の発電量を決定し、この発電量にしたがってエンジンと発電機を駆動制御するようにしたので、車両間のばらつき、バッテリーの経時劣化、車両の走行状況などによりバッテリーの残存容量SOCが変化しても、バッテリーの充放電収支の変動を抑制することができ、バッテリーの寿命が長くなる。 Then, the power generation amount of the generator is determined based on the remaining capacity and the remaining capacity rate of change, since as to drive and control the engine and generator in accordance with the power generation amount, the variation between vehicles, battery deterioration over time , even if the battery residual capacity SOC of the like running condition change of the vehicle, it is possible to suppress variation in charge and discharge balance of the battery, battery life is prolonged. また、バッテリーの残存容量が安定し、車両全体の効率や動力性能を向上させることができる。 Further, the remaining capacity of the battery can be improved and stable, the entire vehicle efficiency and power performance. さらに、エンジン駆動による発電が安定し、排気浄化性能を向上させることができる。 Furthermore, power generation by the engine drive can be improved and stable exhaust purification performance. (2) 請求項2の発明によれば、時間に対する残存容量の変化率を算出し、残存容量と残存容量の時間変化率とに基づいて発電機の発電量を決定し、この発電量にしたがってエンジンと発電機を駆動制御するようにしたので、請求項1と同様な効果が得られる。 (2) According to the invention of claim 2, calculates a rate of change in the remaining capacity with respect to time, the power generation amount of the generator is determined based on the time rate of change of the remaining capacity and the remaining capacity, according to this power generation amount since so as to drive and control the engine and generator, the same effects as claim 1 can be obtained. (3) 請求項3の発明によれば、走行距離に対する残存容量の変化率を算出し、残存容量と残存容量の走行距離変化率とに基づいて発電機の発電量を決定し、この発電量にしたがってエンジンと発電機を駆動制御するようにしたので、請求項1と同様な効果が得られる。 (3) According to the invention of claim 3, calculates a change rate of the remaining capacity to the travel distance, the power generation amount of the generator is determined based on the travel range rate of the remaining capacity and the remaining capacity, the power generation amount since so as to drive and control the engine and generator in accordance with the same effect as claim 1 can be obtained. (4) 請求項4の発明によれば、残存容量の時間変化率または走行距離変化率が増加するときは発電量を減らし、残存容量の時間変化率または走行距離変化率が減少するときは発電量を増やすようにしたので、請求項1と同様な効果が得られる。 (4) According to the invention of claim 4, when the time rate of change or mileage rate of change of the remaining capacity is increased to reduce the amount of power generation, when the time rate of change or mileage rate of change of the remaining capacity is decreased power since to increase the amount, the same effect as claim 1 can be obtained. (5) 請求項5の発明によれば、所定の最大発電量と最小発電量の範囲内で発電量を決定するようにしたので、エンジン駆動による発電をより安定化させることができ、排気浄化性能をより向上させることができる。 (5) According to the invention of claim 5, since so as to determine the power generation amount within a predetermined maximum power generation amount and the minimum amount of power generation, it is possible to stabilize the power generation by the engine driving, the exhaust gas purification it is possible to further improve the performance. (6) 請求項6の発明によれば、車速、バッテリー温度および入力電力に基づいて、発電量決定手段により決定された発電量を補正するようにしたので、環境条件と走行条件に適した発電量を決定することができる。 (6) According to the invention of claim 6, the vehicle speed, based on the battery temperature and input power, since to correct the power generation amount determined by the power generation amount determining unit, adapted to environmental conditions and driving conditions power it is possible to determine the amount.

【0007】 [0007]

【発明の実施の形態】図1は一実施の形態の構成を示す図である。 Figure 1 DETAILED DESCRIPTION OF THE INVENTION is a diagram showing the configuration of an embodiment. モーター1は車両の走行駆動源であり、例えば三相同期電動機や三相誘導電動機などが用いられる。 Motor 1 is a running drive source of a vehicle, such as a three-phase synchronous motor or three-phase induction motor is used.
モーターコントローラー2はモーター1を駆動制御するための装置であり、インバーターと制御装置を備えている。 Motor controller 2 is a device for controlling driving of the motor 1, and includes an inverter and a control unit. 車両コントローラー3は、モーターコントローラー2を含む各種車載機器を制御する装置である。 Vehicle controller 3 is a device for controlling the various in-vehicle devices including the motor controller 2. モーターコントローラー2は、車両コントローラー3からの制御指令にしたがってバッテリー4の直流電力を交流電力に変換し、モーター1に供給する。 Motor controller 2 converts the DC power of the battery 4 to AC power in accordance with a control command from the vehicle controller 3, and supplies to the motor 1.

【0008】発電機5はエンジン7により駆動される。 [0008] The power generator 5 is driven by the engine 7.
発電機コントローラー6は発電機5を駆動制御するための装置であり、インバーターと制御装置を備えている。 Generator controller 6 is a device for controlling driving the generator 5 includes an inverter and a control unit.
発電機コントローラー6は、車両コントローラー3からの制御指令にしたがって発電機5の発電電力を制御し、 Generator controller 6 controls the generated power of the generator 5 in accordance with a control command from the vehicle controller 3,
モーターコントローラー2を介してモーター1へ電力を供給するとともに、バッテリー4へ電力を供給して充電を行う。 It supplies power to the motor 1 via the motor controller 2, to charge by supplying electric power to the battery 4.

【0009】電池容量検出装置8は、バッテリー4の残存容量SOCを検出する。 [0009] battery capacity detecting unit 8 detects the remaining capacity SOC of the battery 4. 残存容量SOCの検出方法には、バッテリーの開放電圧による検出方法や、満充電時の充電量から放電量を減算する方法など、周知の検出方法を用いることができる。 A method of detecting the remaining capacity SOC is and detection method according to the open circuit voltage of the battery, such as a method of subtracting the discharge amount from the charge amount of fully charged state, it is possible to use known detection methods. 容量変化率算出装置9は、バッテリー4の残存容量SOCと時間または車両の走行距離とに基づいて、バッテリー4の残存容量SOCの時間変化率または走行距離変化率を演算する。 Capacity change rate calculating unit 9, the remaining capacity SOC and time battery 4 or based on the travel distance of the vehicle, it calculates a time change rate or mileage rate of change of the remaining capacity SOC of the battery 4. これらの時間変化率と走行距離変化率については後述する。 For the travel range rate with these time rate of change will be described later. 走行距離計10は車両の走行距離を検出し、車速計11は車両の走行速度を検出する。 Odometer 10 detects the travel distance of the vehicle, vehicle speed meter 11 for detecting the traveling speed of the vehicle. また、温度計12はバッテリー4 In addition, the thermometer 12 is battery 4
の温度を検出し、モーター入力電力算出装置13はモーター1の入力電力を算出する。 Detecting the temperature, the motor input power calculation unit 13 calculates an input power of the motor 1.

【0010】車両コントローラー3は、バッテリー4の残存容量SOCと温度、残存容量SOCの時間変化率または走行距離変化率、車速、モーター1の入力電力などの情報に基づいて、発電機5の発電量を決定し、エンジン7と発電機5による発電を制御する。 [0010] the vehicle controller 3, the remaining capacity SOC and the temperature of the battery 4, the time rate of change or mileage rate of change of the remaining capacity SOC, the vehicle speed, based on information such as the input power of the motor 1, the power generation amount of the generator 5 determines, controls the power generation by the generator 5 and the engine 7.

【0011】図2は発電量決定処理を示すフローチャートである。 [0011] FIG 2 is a flowchart showing a power generation amount determining process. このフローチャートにより、一実施の形態の動作を説明する。 Illustrates operation of the embodiment. 車両コントローラー3は、発電要求に応じてエンジン7により発電機5を駆動して発電を開始する時に、この処理を実行する。 Vehicle controller 3, when starting the power generation by driving the generator 5 by the engine 7 in response to a power generation request, to perform this process. ステップ1において、 In step 1,
前回の処理サイクルで決定された発電量をWdに設定する。 The power generation amount determined by the previous processing cycle is set to Wd. 続くステップ2で、電池容量検出装置8によりバッテリー4の残存容量SOCを検出する。 In step 2, to detect the remaining capacity SOC of the battery 4 by the battery capacity detection device 8. ステップ3では残存容量SOCが所定値a%以上かどうかを確認する。 Step 3 In the remaining capacity SOC can verify that the predetermined value a% or more.
ここで、所定値a%には、例えば最大発電量Wmaxを受け入れ可能な充電量を設定する。 Here, the predetermined value a%, for example, to set the amount of charge that can accept a maximum power generation amount Wmax. 所定値a%未満のときはステップ9へ進み、発電量を最大発電量Wmaxとする。 When less than the predetermined value a% proceeds to step 9, and the maximum power generation amount Wmax amount of power generation.

【0012】残存容量SOCが所定値a%以上のときはステップ4へ進み、容量変化率算出装置9により残存容量SOCの時間変化率または走行距離変化率を算出する。 [0012] remaining capacity SOC is when the above predetermined value a% proceeds to step 4, to calculate the time rate of change or mileage rate of change of the residual capacity SOC by the capacitance change rate calculation device 9. この実施の形態では、残存容量SOCの時間変化率と走行距離変化率とを発電量の演算に同時に用いることはないので、どちらもΔSOCで表す。 In this embodiment, since no simultaneous use time rate of change of the remaining capacity SOC and the travel range rate in the calculation of the power generation amount, both expressed in [Delta] SOC. この発電量決定処理のサイクルタイムをtとし、前回の処理サイクルで検出された残存容量をSOCdとし、今回の処理サイクルで検出された残存容量をSOCで表すと、残存容量S The cycle time of the power generation amount determining process and t, the remaining capacity detected by the previous processing cycle and SOCD, to represent the remaining capacity detected in the current processing cycle with SOC, the remaining capacity S
OCの時間変化率ΔSOCは次式により求められる。 The time rate of change ΔSOC of OC is obtained by the following equation.

【数1】ΔSOC=(SOC−SOCd)/t また、前回の処理サイクルから今回の処理サイクルまでの間の走行距離をLとすると、残存容量SOCの走行距離変化率ΔSOCは次式により求められる。 [Number 1] ΔSOC = (SOC-SOCd) / t In addition, when the travel distance from the previous processing cycle to the present processing cycle is L, the travel range rate [Delta] SOC of the remaining capacity SOC is obtained by the following equation .

【数2】ΔSOC=(SOC−SOCd)/L [Number 2] ΔSOC = (SOC-SOCd) / L

【0013】ステップ5において、次式により発電量演算値Wを求める。 [0013] In step 5, determine the power generation amount calculating value W by the following equation.

【数3】 W=Wd+(Wc+b/SOC−c*ΔSOC) ここで、Wdは前回の処理サイクルにおいて決定された発電量、Wcは変化発電量、bおよびcは車両ごと、および処理サイクルごとに求められる定数である。 Equation 3] W = Wd + (Wc + b / SOC-c * ΔSOC) where, Wd power generation amount determined in the previous processing cycle, Wc change power generation, each b and c is a vehicle, and for each processing cycle is a constant determined. 例えば、Wd=10kW、Wc=3kW、b=0.5、c= For example, Wd = 10kW, Wc = 3kW, b = 0.5, c =
50、SOC=50%、ΔSOC=10%とすると、発電量演算値Wは9kWとなる。 50, SOC = 50%, When ΔSOC = 10%, generation amount calculation value W becomes 9 kW.

【0014】数式3において、(b/SOC)はバッテリー4の残存容量SOCに応じて発電量を変化させる項であり、残存容量SOCが少ないときは発電量を多めに、残存容量SOCが多いときは発電量を少なめにする。 [0014] In Equation 3, when (b / SOC) is a term that changes the power generation amount in accordance with the remaining capacity SOC of the battery 4, the generous amount of power generation when the remaining capacity SOC is small, the remaining capacity SOC is larger is the fewer the amount of power generation. また、(c*ΔSOC)は、残存容量SOCの時間変化率または走行距離変化率ΔSOCに応じて発電量を変化させる項である。 Further, (c * [Delta] SOC) is a term to vary the power generation amount according to the time rate of change or the travel range rate [Delta] SOC of the remaining capacity SOC. 残存容量SOCの時間変化率または走行距離変化率ΔSOCが増加するときは発電量を少なめに、時間変化率または走行距離変化率ΔSOCが変化しないときは発電量を変えず、時間変化率または走行距離変化率ΔSOCが減少するときは発電量を多めにする。 When the time rate of change or the travel range rate [Delta] SOC of the remaining capacity SOC is increased fewer power generation amount without changing the amount of power generated when no change time rate or running distance change rate [Delta] SOC, time change rate or running distance when the rate of change ΔSOC is reduced to the generous amount of power generation. なお、発電開始時には発電量演算値Wに所定値を設定する。 Note that at the start of power generation sets a predetermined value to the power generation amount calculating values ​​W.

【0015】ステップ6では、発電量演算値Wを予め決定した最小発電量Wminおよび最大発電量Wmaxと比較する。 [0015] In step 6, it is compared with the minimum amount of power generation Wmin and maximum power generation amount Wmax previously determined power generation amount calculating values ​​W. 発電量演算値Wが最小発電量Wmin以下のときはステップ7へ進み、発電量を最小発電量Wminとする。 When power generation amount calculating value W is equal to or less than the minimum amount of power generation Wmin proceeds to step 7, the power generation amount and the minimum amount of power generation Wmin. 発電量演算値Wが最小発電量Wminより大きく、最大発電量Wmaxより小さいときはステップ8へ進み、発電量を発電量演算値Wとする。 Power generation amount calculating value W is greater than the minimum amount of power generation Wmin, when less than the maximum power generation amount Wmax proceeds to step 8, the power generation amount and the power generation amount calculating values ​​W. 発電量演算値Wが最大発電量W Maximum power generation amount W power generation amount calculation value W is
max以上のときはステップ9へ進み、発電量を最大発電量Wmaxとする。 When more than max proceeds to step 9, and the maximum power generation amount Wmax amount of power generation.

【0016】図3は一実施の形態の発電量決定結果を示すタイムチャートであり、(a)は残存容量SOCを示し、(b)は残存容量SOCの時間変化率または走行距離変化率ΔSOCを示し、(c)は発電量決定値を示す。 [0016] Figure 3 is a time chart showing a power generation amount determining result of the embodiment, the (a) shows a remaining capacity SOC, (b) the time rate of change or the travel range rate ΔSOC of remaining capacity SOC shown, (c) shows the generation amount determining value. 図から明らかなように、発電量は、バッテリーの残存容量SOCの時間変化率または走行距離変化率ΔSO As can be seen, the power generation amount of remaining capacity SOC of the battery time rate or running distance change rate ΔSO
Cに応じて変化する。 Changes in accordance with the C. これにより、車両間のばらつき、 Thus, variations between vehicles,
バッテリーの経時劣化、車両の走行状況などによりバッテリーの残存容量SOCが変化しても、バッテリーの充放電収支の変動を抑制することができ、バッテリーの寿命を延長し、車両全体の効率や動力性能、排気浄化性能を向上させることができる。 Aging of the battery, even if the battery capacity SOC of the like running condition change of the vehicle, it is possible to suppress variation in charge and discharge balance of the battery, extending battery life, the entire vehicle efficiency and power performance , it is possible to improve the exhaust purification performance.

【0017】なお、上述した発電量決定処理により求めた発電量を、車速とバッテリー温度と電動機の入力電力(消費電力)とに応じて補正することによって、より環境条件と走行状況に適した発電量とすることができる。 [0017] Incidentally, the power generation of the power generation amount obtained by the above-mentioned power generation amount determining process, by correcting depending on the vehicle speed and the temperature of the battery and the motor input power (power consumption), which is suitable for driving situation more environmental conditions it can be limited to an amount.

【0018】以上の一実施の形態の構成において、エンジン7がエンジンを、発電機5が発電機を、モーター1 [0018] In the configuration described above of the embodiment, the engine 7 is the engine, the generator 5 is a generator, the motor 1
が走行用モーターを、バッテリー4がバッテリーを、電池用量検出装置8が残存容量検出手段を、容量変化率算出装置9が変化率算出手段を、車両コントローラー3が発電量決定手段および発電量補正手段を、車両コントローラー3および発電機コントローラー6が駆動制御手段を、走行距離計10が走行距離検出手段を、車速計11 The but-drive motor, the battery 4 is battery, battery dose detector 8 remaining capacity detecting means, the rate of change calculating unit volume change rate calculating unit 9, the power generation amount determining means vehicle controller 3 and the power generation amount correction means and the vehicle controller 3 and the generator controller 6 drive control means, the odometer 10 travel distance detection means, vehicle speed meter 11
が車速検出手段を、温度計12が温度検出手段を、モーター入力電力算出装置13が入力電力算出手段をそれぞれ構成する。 There the vehicle speed detecting means, thermometer 12 and the temperature detecting means, motor input power calculation unit 13 respectively constituting an input power calculation unit.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 一実施の形態の構成を示す図である。 1 is a diagram showing the configuration of an embodiment.

【図2】 一実施の形態の発電量演算処理を示すフローチャートである。 2 is a flowchart showing a power generation amount calculating process in the embodiment.

【図3】 一実施の形態の発電量演算結果を示す図である。 3 is a diagram showing a power generation amount calculation result of the embodiment.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 モーター 2 モーターコントローラー 3 車両コントローラー 4 バッテリー 5 発電機 6 発電機コントローラー 7 エンジン 8 電池容量検出装置 9 容量変化率算出装置 10 走行距離計 11 車速計 12 温度計 13 モーター入力電力算出装置 1 Motor 2 motor controller 3 vehicle controller 4 Battery 5 generator 6 the generator controller 7 engine 8 battery capacity detecting device 9 capacity change rate calculating unit 10 odometer 11 speedometer 12 thermometer 13 Motor input power calculation device

───────────────────────────────────────────────────── フロントページの続き (72)発明者 平野 弘之 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 (72)発明者 稲田 英二 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 (72)発明者 麻生 剛 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 (72)発明者 井戸口 隆一 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 ────────────────────────────────────────────────── ─── of the front page continued (72) inventor Hiroyuki Hirano Yokohama-shi, Kanagawa, Kanagawa-ku, Takaracho address 2 Nissan automobile Co., Ltd. in the (72) inventor Eiji Inada Kanagawa Prefecture, Kanagawa-ku, Yokohama-shi Takaracho address 2 Nissan-car Co., Ltd. ( 72) inventor Tsuyoshi Aso Kanagawa Prefecture, Kanagawa-ku, Yokohama-shi Takaracho address 2 Nissan automobile Co., Ltd. in the (72) inventor well opening Ryuichi Kanagawa Prefecture, Kanagawa-ku, Yokohama-shi Takaracho address 2 Nissan-car Co., Ltd.

Claims (6)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 エンジンにより発電機を駆動して発電を行い、走行用モーターとバッテリーに電力を供給するハイブリッド車両の制御装置において、 前記バッテリーの残存容量を検出する残存容量検出手段と、 前記残存容量の変化率を算出する変化率算出手段と、 前記残存容量と前記変化率とに基づいて前記発電機の発電量を決定する発電量決定手段と、 前記発電量にしたがって前記エンジンと前記発電機を駆動制御する駆動制御手段とを備えることを特徴とするハイブリッド車両の制御装置。 1. A to generate electricity by driving a generator by the engine, the control apparatus for a hybrid vehicle for supplying electric power to the traction motor and batteries, and the remaining capacity detecting means for detecting a remaining capacity of the battery, the remaining a change rate calculating means for calculating a change rate of the capacitance, the residual capacity and the power generation amount determining means for determining a power generation amount of the generator based on the changing rate, the generator and the engine in accordance with the power generation amount control apparatus for a hybrid vehicle, wherein a and a drive control means for controlling driving.
  2. 【請求項2】 請求項1に記載のハイブリッド車両の制御装置において、 前記変化率算出手段は、時間に対する前記残存容量の変化率を算出することを特徴とするハイブリッド車両の制御装置。 An apparatus as claimed in claim 2] according to claim 1, wherein the change rate calculating means, the control device of the hybrid vehicle and calculates the rate of change in the remaining capacity with respect to time.
  3. 【請求項3】 請求項1に記載のハイブリッド車両の制御装置において、 車両の走行距離を検出する走行距離検出手段を備え、 前記変化率算出手段は、前記走行距離に対する前記残存容量の変化率を算出することを特徴とするハイブリッド車両の制御装置。 An apparatus as claimed in claim 3] according to claim 1, comprising a travel distance detecting means for detecting a travel distance of the vehicle, said change rate calculating means, a change rate of the remaining capacity for the travel distance calculation control device for a hybrid vehicle, characterized by.
  4. 【請求項4】 請求項1〜3のいずれかの項に記載のハイブリッド車両の制御装置において、 前記発電量決定手段は、前記残存容量の変化率が増加するときは発電量を減らし、前記残存容量の変化率が減少するときは発電量を増やすことを特徴とするハイブリッド車両の制御装置。 4. The apparatus as claimed in any one of claims 1 to 3, wherein the power generation amount determining means, when the change rate of the remaining capacity is increased to reduce the amount of power generation, the remaining control apparatus for a hybrid vehicle, characterized by increasing the power generation amount when the capacity change rate is reduced.
  5. 【請求項5】 請求項1〜4のいずれかの項に記載のハイブリッド車両の制御装置において、 前記発電量決定手段は、所定の最大発電量と最小発電量の範囲内で発電量を決定することを特徴とするハイブリッド車両の制御装置。 5. The apparatus as claimed in any one of claims 1 to 4, wherein the power generation amount determining means determines the power generation amount within a predetermined maximum power generation amount and the minimum amount of power generation control apparatus for a hybrid vehicle, characterized in that.
  6. 【請求項6】 請求項1〜5のいずれかの項に記載のハイブリッド車両の制御装置において、 車速を検出する車速検出手段と、 前記バッテリーの温度を検出する温度検出手段と、 前記モーターの入力電力を算出する入力電力算出手段と、 前記車速、前記バッテリー温度および前記入力電力に基づいて、前記発電量決定手段により決定された発電量を補正する発電量補正手段とを備えることを特徴とするハイブリッド車両の制御装置。 6. The apparatus as claimed in any one of claims 1 to 5, and vehicle speed detecting means for detecting a vehicle speed, and temperature detection means for detecting a temperature of the battery, the input of the motor an input power calculating means for calculating the power, the vehicle speed, on the basis of the battery temperature and the input power, characterized in that it comprises a power generation amount correction means for correcting the power generation amount determined by said power generation amount determining means control device for a hybrid vehicle.
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