JP6471859B2 - ハイブリッド車両の制御装置 - Google Patents
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Description
図に示すように、ハイブリッド車両(車両)1には、駆動輪2に動力を伝える走行用モータ3、及び、エンジン4が備えられている。走行用モータ3の駆動力は伝達機構5を介して駆動輪2に伝達される。走行用モータ3にはインバータ等の回路6を介してバッテリ7が接続されている。乗員のペダル操作に応じた電力が、バッテリ7から回路6を介して走行用モータ3に供給される。
図3に示したマップに基づき、車両1の運転状態に応じて発電電力が増加される。これにより、燃料消費効率が良い運転点Sの回転速度、トルクで、エンジン4の運転が制御されて発電機9が駆動され必要な電力が発電される(発電制御手段22)。
そして、バッテリ7のSOCが所定充電割合S1を超える高い状態で、多くの電流が流れてバッテリ7の電圧が高くなる状態での発電を抑制することができる。
車両1を駆動するための電力、バッテリ7の充電電力、補機の消費電力により、要求電力が設定され、運転者の直接の意思、車両1の運転状態により、要求電力に応じて発電が実施される。例えば、運転者の充電を行う旨の操作により、もしくは、車両1(バッテリ7)の状態が、強制的に充電が必要とされる状態の時に、エンジン4を駆動してバッテリ7の充電を行う、チャージモードか否かが判断される。
2 駆動輪
3 走行用モータ
4 エンジン
5 伝達機構
6 回路
7 バッテリ
8 出力系
9 発電機
10 クラッチ
11 制御装置
12 車速センサー
13 アクセルポジションセンサー(APS)
14 気圧計測手段
15 充電状況検出手段
21 燃料効率点導出手段
22 発電制御手段
23 増加量設定機能
Claims (4)
- 駆動輪に駆動力を伝える走行用モータと、
前記走行用モータに電力を供給するバッテリと、
エンジンの運転により駆動され、少なくとも前記バッテリに供給するための電力を含む要求電力を発電する発電機とを有するハイブリッド車両の制御装置であって、
前記エンジンの回転速度とトルクに基づいて燃料消費効率が良い運転点を求める燃料効率点導出手段と、
前記ハイブリッド車両に要求されるトルクを検出することで前記ハイブリッド車両の運転状態を検出する要求トルク検出手段と、
前記要求電力に対して発電電力が増加するように前記エンジンを運転することで、前記燃料効率点導出手段で求められた運転点に基づいて前記エンジンを運転して前記発電機の発電を制御する発電制御手段とを備え、
前記発電制御手段は、
前記要求トルク検出手段で前記ハイブリッド車両の運転状態が加速状態であることが検出された場合、減速状態であることが検出された場合に比べ、前記発電電力の増加量が多く設定され、
単位時間当たりの充電割合の増加量を、加速状態の時に減速状態の時に比べて多くし、充電時の充電割合の経時変化の傾きを、加速状態の時に減速状態の時に比べて大きくする
ことを特徴とするハイブリッド車両の制御装置。 - 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、
前記バッテリの充電状況を検出する充電状況検出手段を備え、
前記発電制御手段は、
前記充電状況検出手段で検出される充電割合が所定充電割合以下の際に、前記発電機の発電制御を実行する
ことを特徴とするハイブリッド車両の制御装置。 - 請求項1もしくは請求項2に記載のハイブリッド車両の制御装置において、
前記ハイブリッド車両の走行場所の高度を検出する高度検出手段を備え、
前記発電制御手段は、
前記ハイブリッド車両の走行場所の高度が基準となる高度よりも高い時の前記発電電力の増加量が、基準となる高度の時の前記発電電力の増加量に比べて少なく設定されている
ことを特徴とするハイブリッド車両の制御装置。 - 請求項1から請求項3のいずれか一項に記載のハイブリッド車両の制御装置において、
前記発電制御手段は、
前記走行用モータを前記ハイブリッド車両の走行動力源とすると共に、前記エンジンにより前記発電機を駆動させて前記バッテリ及び前記走行用モータの少なくとも一方に電力を供給するシリーズモードの時に、前記発電機の発電制御を実行する
ことを特徴とするハイブリッド車両の制御装置。
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