JP5270775B1 - 電動車両および電動車両の制御方法 - Google Patents
電動車両および電動車両の制御方法 Download PDFInfo
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Abstract
【解決手段】電動車両100は、蓄電装置Bと、電動機50と、制限制御部104と、報知部80と、変更部108とを備える。電動機50は、蓄電装置Bから出力される電力を用いて走行駆動力を発生する。制限制御部104は、蓄電装置Bの負荷状態に基づいて、蓄電装置Bから出力可能な電力を示す出力可能電力を制限する。報知部80は、走行駆動力の低下を運転者に報知するためのしきい値よりも出力可能電力が小さいときに警報を報知する。変更部108は、蓄電装置Bの負荷状態が高い場合に、蓄電装置Bの負荷状態が低い場合よりも上記しきい値を大きくする。
【選択図】図1
Description
さらに好ましくは、評価関数は、入出力電流の積算値に基づく評価関数である。
また、この発明によれば、電動車両の制御方法は、蓄電装置と、蓄電装置から出力される電力を用いて走行駆動力を発生する電動機とを備える電動車両の制御方法である。制御方法は、蓄電装置の負荷状態に基づいて、蓄電装置から出力可能な電力を示す出力可能電力を制限するステップと、走行駆動力の低下を運転者に報知するためのしきい値よりも出力可能電力が小さいときに警告を報知するステップと、蓄電装置の負荷状態が高い場合に、蓄電装置の負荷状態が低い場合よりも上記しきい値を大きくするステップとを含む。
図1は、この発明の実施の形態1による電動車両の全体ブロック図である。図1を参照して、電動車両100は、電池Bと、電圧センサ72と、電流センサ74と、昇圧コンバータ30と、インバータ40と、モータジェネレータ50と、駆動輪55と、制御装置60と、報知部80とを備える。
この発明の実施の形態2は、実施の形態1と比較して、高負荷判定フラグに代えて、評価関数と走行駆動力とに基づいて警告判定しきい値を変更する点が異なる。実施の形態2は、走行駆動力を考慮することで、電動車両100が加速する際の出力可能電力Woutの低下量を予測して警告判定しきい値を変更することができる。これにより、運転者の運転特性を考慮して駆動力が低下することを事前に運転者に知らせることができる。なお、走行駆動力は、運転者が要求する走行駆動力であってもよく、実際の走行駆動力であってもよい。運転者が要求する走行駆動力は、アクセルペダルの操作量および車速から算出されてもよい。実際の走行駆動力は、モータジェネレータ50の回転数および出力トルクから算出されてもよく、電池Bの出力電力から算出されてもよい。また、走行駆動力は、現在の走行駆動力の値であってもよいが、過去の走行駆動力を予め定められた時間平均した値であることがより好ましい。
Claims (10)
- 蓄電装置と、
前記蓄電装置から出力される電力を用いて走行駆動力を発生する電動機と、
前記蓄電装置の負荷状態に基づいて、前記蓄電装置から出力可能な電力を示す出力可能電力を制限する制限制御部と、
前記走行駆動力の低下を運転者に報知するためのしきい値よりも前記出力可能電力が小さいときに警告を報知する報知部と、
前記蓄電装置の負荷状態が高い場合に、前記蓄電装置の負荷状態が低い場合よりも前記しきい値を大きくする変更部とを備える、電動車両。 - 前記蓄電装置の状態を示す所定の評価関数に基づいて、前記蓄電装置の負荷状態を判定する判定部をさらに備える、請求項1に記載の電動車両。
- 前記走行駆動力に基づいて、前記蓄電装置の負荷状態を判定する判定部をさらに備える、請求項1に記載の電動車両。
- 前記蓄電装置の状態を示す所定の評価関数および前記走行駆動力に基づいて、前記蓄電装置の負荷状態を判定する判定部をさらに備える、請求項1に記載の電動車両。
- 前記評価関数は、前記蓄電装置の入出力電流に基づく評価関数である、請求項2または4に記載の電動車両。
- 前記評価関数は、前記入出力電流の積算値に基づく評価関数である、請求項5に記載の電動車両。
- 前記出力可能電力の制限量に基づいて、前記蓄電装置の負荷状態を判定する判定部をさらに備える、請求項1に記載の電動車両。
- 前記走行駆動力またはアクセルペダルの操作量の履歴に基づいて、前記蓄電装置の負荷状態を判定する判定部をさらに備える、請求項1に記載の電動車両。
- 前記変更部は、前記蓄電装置の負荷状態が高いほど前記しきい値を大きくする、請求項1から8のいずれか1項に記載の電動車両。
- 蓄電装置と、前記蓄電装置から出力される電力を用いて走行駆動力を発生する電動機とを備える電動車両の制御方法であって、
前記蓄電装置の負荷状態に基づいて、前記蓄電装置から出力可能な電力を示す出力可能電力を制限するステップと、
前記走行駆動力の低下を運転者に報知するためのしきい値よりも前記出力可能電力が小さいときに警告を報知するステップと、
前記蓄電装置の負荷状態が高い場合に、前記蓄電装置の負荷状態が低い場合よりも前記しきい値を大きくするステップとを含む、電動車両の制御方法。
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CN201380012530.1A CN104144812B (zh) | 2012-03-09 | 2013-02-28 | 电动车辆和电动车辆的控制方法 |
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