JP7135476B2 - 車両の発電制御装置 - Google Patents
車両の発電制御装置 Download PDFInfo
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- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
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- B60K17/354—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having separate mechanical assemblies for transmitting drive to the front or to the rear wheels or set of wheels
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Description
歯打ち音抑制制御部は、内燃機関の回転数が第1の回転数に設定される状況または発電モードに設定されて内燃機関の回転数が第1の回転数未満に設定される状況であっても、空調機の暖房強度が所定強度以上の場合、内燃機関の回転数を第2の回転数に引き上げる。
内燃機関と発電機とを連結するギア機構で生じる歯打ち音の抑制を図ることができる。
これに対し、S201においてSOCが目標蓄電量未満である場合、発電制御部33は、蓄電量情報検出部22によって検出された蓄電装置13の充電モードがチャージモードまたはセーブモードであるか否かの判定を行う(S203)。
次いで、発電制御部33は、求めた電池充電量の上限値と、S204で求めた電池充電量の値(以下、演算値という)とを比較する(S207)。
目標発電量の調整にあたって、発電制御部33は、蓄電装置13の電池温度に対する電池充電量の上限値を求め(S206)、求めた電池充電量の上限値と電池充電量の演算値とを比較する(S207)。S207において電池充電量の演算値が上限値以上である場合、発電制御部33は、発電機12の目標発電量の値を補機消費電力量の値に電池充電量の上限値を加えた値に設定変更する(S208)。一方、電池充電量の演算値が上限値に達していない場合、発電制御部33は、S210で設定された発電機12の目標発電量の値をそのまま維持する。
図8には、エンジン回転数演算処理(S103)の制御フローを示す。エンジン回転数演算処理は、発電機12の目標発電量に基づいてエンジン11の目標回転数を演算し、歯打ち音抑制制御条件を満たす場合には、目標回転数を歯打ち音抑制回転数に引き上げる処理である。
S302において暖房強度が所定強度以上ではない(ヒータ16aの動作がない、もしくは所定強度と比べると必要な熱量が高くない暖房強度である)場合、歯打ち音抑制制御部34は、蓄電装置13の蓄電量(SOC)を目標蓄電量と比較する(S303)。目標蓄電量は、例えば演算処理部31のメモリに格納され、歯打ち音抑制制御部34の引数(プログラムのパラメータ)としてSOCの判定時に読み出される。
一方、S304において目標回転数が第1の回転数以上の場合、歯打ち音抑制制御部34は、エンジン11の目標回転数を、発電制御部33によって設定された値(S301)のまま維持する。
図9には、エンジントルク演算処理(S104)の制御フローを示す。エンジントルク演算処理は、目標回転数に基づいてエンジン11のトルク(以下、エンジントルクという)を演算する処理である。
そして、発電制御部33は、発電用エンジントルクにエンジン11のフリクショントルクを加えた値にエンジントルクの値を設定する(S404)。フリクショントルクは、エンジン11の回転時にピストンとシリンダとの間で発生する摩擦による回転抵抗などによって生じる回生方向のトルクである。
図10には、発電機トルク演算処理(S105)の制御フローを示す。発電機トルク演算処理は、発電用エンジントルクに基づいて発電機12のトルク(以下、発電機トルクという)を演算する処理である。発電機トルクは、発電時に発電機12に負荷されるトルク(負荷トルク)である。
発電制御部33は、発電用エンジントルクにギヤ機構15のギヤ比をかけた値に発電機トルクの値を設定する(S502)。ギヤ比は、エンジン11に対する発電機12のギヤ比であり、本実施形態では一定値である。
図11には、エンジン・発電機稼働処理の制御フローを示す。エンジン・発電機稼働処理は、エンジントルクに応じてエンジン11を稼働させるとともに、発電機トルクに応じて発電機12を稼働させる処理である。
Claims (4)
- 車両の内燃機関と、
前記内燃機関により駆動されて発電する発電機と、
前記発電機により充電される蓄電装置と、
前記内燃機関と前記発電機を相互に連結するギヤ機構と、
前記車両の車両情報を検出する検出部と、
前記車両情報に基づいて前記発電機の目標発電量を設定するとともに、前記目標発電量に応じて前記内燃機関の回転数と前記発電機の負荷トルクをそれぞれ演算する発電制御部と、
前記車両情報と前記目標発電量に基づいて前記ギヤ機構の歯打ち音抑制制御条件を判定し、前記条件を満たす場合は、前記内燃機関の前記回転数を所定の回転数に引き上げる歯打ち音抑制制御部と、を備え、
前記歯打ち音抑制制御部は、
前記蓄電装置の蓄電量を目標蓄電量と比較し、
前記蓄電量が前記目標蓄電量以上である場合、前記回転数を前記所定の回転数と比較し、
前記回転数が前記所定の回転数未満である場合、該回転数を該所定の回転数に引き上げ、
前記発電制御部は、前記車両が停車状態かつ前記蓄電装置の前記蓄電量が前記目標蓄電量以上の場合、前記目標発電量を補機消費電力量となるように設定し、
前記歯打ち音抑制制御部は、前記目標発電量が前記補機消費電力量となるように設定された場合、前記条件を満たすと判定し、前記内燃機関の前記回転数を第1の回転数に引き上げる
ことを特徴とする発電制御装置。 - 車両の内燃機関と、
前記内燃機関により駆動されて発電する発電機と、
前記発電機により充電される蓄電装置と、
前記内燃機関と前記発電機を相互に連結するギヤ機構と、
前記車両の車両情報を検出する検出部と、
前記車両情報に基づいて前記発電機の目標発電量を設定するとともに、前記目標発電量に応じて前記内燃機関の回転数と前記発電機の負荷トルクをそれぞれ演算する発電制御部と、
前記車両情報と前記目標発電量に基づいて前記ギヤ機構の歯打ち音抑制制御条件を判定し、前記条件を満たす場合は、前記内燃機関の前記回転数を所定の回転数に引き上げる歯打ち音抑制制御部と、を備え、
前記歯打ち音抑制制御部は、
前記蓄電装置の蓄電量を目標蓄電量と比較し、
前記蓄電量が前記目標蓄電量以上である場合、前記回転数を前記所定の回転数と比較し、
前記回転数が前記所定の回転数未満である場合、該回転数を該所定の回転数に引き上げ、
前記発電制御部は、前記車両が停車状態かつ前記蓄電装置の前記蓄電量が前記目標蓄電量未満の場合は、前記目標発電量を補機消費電力量に応じて段階的に設定するとともに前記内燃機関の前記回転数を第1の回転数未満に設定する発電モードを有し、
前記歯打ち音抑制制御部は、前記発電モードが設定される状況であっても、前記目標発電量が所定値以下の場合、前記条件を満たすと判定し、前記内燃機関の前記回転数を前記第1の回転数に引き上げることを特徴とする発電制御装置。 - 前記車両情報は、前記車両の空調機の暖房強度をさらに含み、
前記歯打ち音抑制制御部は、前記空調機の暖房強度が所定強度以上の場合、前記条件を満たすと判定し、前記内燃機関の回転数を前記第1の回転数よりも高い第2の回転数に引き上げることを特徴とする請求項1または2に記載の発電制御装置。 - 前記歯打ち音抑制制御部は、前記内燃機関の回転数が前記第1の回転数に設定される状況または前記発電モードに設定されて前記内燃機関の回転数が前記第1の回転数未満に設定される状況であっても、前記空調機の暖房強度が所定強度以上の場合、前記内燃機関の回転数を前記第2の回転数に引き上げることを特徴とする請求項3に記載の発電制御装置。
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