JP4905516B2 - ハイブリッド車両の駆動制御装置 - Google Patents
ハイブリッド車両の駆動制御装置 Download PDFInfo
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- JP4905516B2 JP4905516B2 JP2009171902A JP2009171902A JP4905516B2 JP 4905516 B2 JP4905516 B2 JP 4905516B2 JP 2009171902 A JP2009171902 A JP 2009171902A JP 2009171902 A JP2009171902 A JP 2009171902A JP 4905516 B2 JP4905516 B2 JP 4905516B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/46—Series type
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B60W30/1882—Controlling power parameters of the driveline, e.g. determining the required power characterised by the working point of the engine, e.g. by using engine output chart
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- B60W2540/00—Input parameters relating to occupants
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Description
本発明の第1実施形態に係るハイブリッド車両の駆動制御装置を搭載した車両の概略構成を図1に概略的に示す。このハイブリッド車両には、内燃機関としてのエンジン1、発電機2、モータ3、差動装置4、タイヤ5a、5b、インバータ6、DCリンク7、インバータ8、バッテリ9、HV制御部10、GPS受信機11、方位センサ12、車速センサ13、地図DB記憶部14、勾配センサ15、表示部16およびナビゲーションECU20が搭載されている。
(A)アクセル開度、バッテリ9のバッテリ充電量、バッテリ9の温度等に基づいて、動力源の異なる複数の走行モード(モータ走行モード、ハイブリッド走行モード)の切り替えを繰り返し行うとともに、ナビゲーションECU20から入力される制御目標値(目標SOC)に基づいて、基準SOCの値を変化させ、ハイブリッド車両のバッテリ9の充電量を目標SOCに近づけるように、発電機2、モータ3、インバータ6、インバータ8等を制御する。また、内燃充電の実行・非実行、回生充電の実行・非実行の切り替えも繰り返し行う。HV制御部10は、現在SOCがこの目標SOCおよびその近傍の値を維持するよう、走行方法の決定および決定した走行方法に基づくアクチュエータの制御を実行する。
(B)定期的に現在SOCをナビゲーションECU20に通知する。
第2実施形態に係る表示部16の表示例を図12に示す。(a)は、計画区間(区間1〜3)を地図形式で示したもので、(b)は、(a)に示した各計画区間における各区間のインジケータの表示例を示したものである。上記第1実施形態では、図11(b)に示したように、アクセル開度に比例してアクセル開度を示す領域(斜線部)が大きくなるように車両のアクセル開度を表示させ、推奨走行モードに対応するアクセル開度の範囲を、インジケータ上の異なる位置に点滅させたが、本実施形態では、図12(b)に示すように、推奨走行モードに対応するアクセル開度の範囲をインジケータ上に固定表示し、走行モード毎にアクセル開度の変化に応じてアクセル開度を示す領域の変化する割合が異なるように車両のアクセル開度を表示させる。具体的には、モータ走行モード時には、ハイブリッド走行モード時と比較して、アクセルペダルの踏み込み量に対してアクセル開度を示す領域(図中、斜線で示す)が敏感に反応して伸びるようになっている。したがって、モータ走行モードでは、アクセル開度を示す領域(図中、斜線で示す)がHV走行ゾーンBに入らないように、アクセルペダルを浅く踏み込むようなアクセル操作となり、ハイブリッド走行モード時では、アクセル開度を示す領域(図中、斜線で示す)がHV走行ゾーンBに入るように、アクセルペダルを深く踏み込むようなアクセル操作となる。
第3実施形態に係るハイブリッド車両の駆動制御装置を搭載した車両の概略構成を図13に示す。本実施形態に係るハイブリッド車両の駆動制御装置の構成は、図1に示した構成と比較して、更に、渋滞情報を受信するためのVICS受信機17を備えた点が異なる。
上記第1、第2実施形態では、モータに電力を供給するバッテリの充電量の制御目標値(目標SOC)を制御指標として、制御指標のスケジュールを規定する例を示したが、目標SOCに限定されるものではなく、目標SOC以外のデータを制御指標として制御指標のスケジュールを規定してもよい。つまり、ある区間に進入する時のSOCを「b」、退出する時のSOCを「c」とした場合に、区間中の制御でSOCをbからcに推移させることができる制御指標であればどのような値でもよい。
2 発電機
3 モータ
4 差動装置
5a タイヤ
5b タイヤ
6 インバータ
7 DCリンク
8 インバータ
9 バッテリ
10 HV制御部
11 GPSセンサ
12 方位センサ
13 車速センサ
14 地図DB記憶部
15 勾配センサ
16 表示部
20 ナビゲーションECU
21 RAM
22 ROM
23 耐久記憶媒体
24 制御部
Claims (5)
- エンジンとモータを走行用の動力源とし、アクセル操作に応じて複数の走行モードを切り替えて走行するハイブリッド車両に搭載され、前記エンジンと前記モータの駆動制御を行うハイブリッド車両の駆動制御装置であって、
前記車両の現在位置を特定する現在位置特定手段と、
出発地から目標とする地点に到達するまでの経路内の任意の区間について低燃費走行となるような前記モータを駆動するバッテリのバッテリ充電量の目標値のスケジュールを予め定められた区間毎に規定する制御指標規定手段と、
前記バッテリ充電量の目標値のスケジュールに基づいて出発地から目標とする地点に到達するまでの経路内の任意の区間について低燃費走行となるようなアクセル操作のスケジュールを予め定められた区間毎に規定するアクセル操作スケジュール規定手段と、
前記アクセル操作のスケジュールおよび前記車両の現在位置に基づいて前記車両が位置する区間における推奨アクセル操作を表示する表示手段と、を備え、
前記アクセル操作スケジュール規定手段は、前記バッテリ充電量の目標値が増加する区間については、前記バッテリの充電が実施されるようなアクセル操作として前記アクセル操作のスケジュールを規定することを特徴とするハイブリッド車両の駆動制御装置。 - 前記アクセル操作スケジュール規定手段は、前記バッテリ充電量の目標値が減少する区間については、前記バッテリの充電が実施されないようなアクセル操作として前記アクセル操作のスケジュールを規定することを特徴とする請求項1に記載のハイブリッド車両の駆動制御装置。
- 前記車両の走行に伴い前記バッテリ充電量の目標値を規定するための走行情報を予め定められた区間毎に収集して前記記憶手段に記憶させる情報記憶手段を備え、
前記制御指標規定手段は、前記記憶手段に記憶された前記走行情報に基づいて、前記低燃費走行となるような前記バッテリ充電量の目標値のスケジュールを予め定められた区間毎に規定することを特徴とする請求項1または2に記載のハイブリッド車両の駆動制御装置。 - 前記表示手段は、アクセル開度に比例して当該アクセル開度を示す領域が大きくなるように車両のアクセル開度を表示するインジケータを有し、前記車両が位置する区間における推奨アクセル操作に対応するアクセル開度の範囲を、前記インジケータ上に強調表示させることを特徴とする請求項1ないし3のいずれか1つに記載のハイブリッド車両の駆動制御装置。
- 前記表示手段は、前記走行モード毎に前記アクセル開度の変化に応じてアクセル開度を示す領域の変化する割合が異なるように車両のアクセル開度を表示するインジケータを有し、前記車両が位置する区間における推奨アクセル操作に対応するアクセル開度の範囲を、前記インジケータ上に固定表示させることを特徴とする請求項1ないし3のいずれか1つに記載のハイブリッド車両の駆動制御装置。
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