JP2022112449A - ハイブリッド車両の制御装置 - Google Patents
ハイブリッド車両の制御装置 Download PDFInfo
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- JP2022112449A JP2022112449A JP2021008335A JP2021008335A JP2022112449A JP 2022112449 A JP2022112449 A JP 2022112449A JP 2021008335 A JP2021008335 A JP 2021008335A JP 2021008335 A JP2021008335 A JP 2021008335A JP 2022112449 A JP2022112449 A JP 2022112449A
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- engine
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- wheel drive
- drive mode
- electric motor
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Abstract
【解決手段】エンジンが停止状態であるときの主駆動輪駆動モードにおいて、全輪駆動モードが選択された場合には、主駆動輪駆動モードから全輪駆動モードへの切替えが完了させられるまでエンジンの停止状態が維持され、運転者によりハイブリッド車両を走行させる為の所定操作が為された後にエンジンが始動させられるので、全輪駆動モードへの切替えとエンジン始動とが重なって実行されることが回避されてショックの発生が防止され、又、エンジン始動につながる運転者の操作に基づいてエンジンが始動させられる。よって、全輪駆動モードが選択された際に、運転者に違和感を与え難くすることができる。
【選択図】図3
Description
12:エンジン
14:前輪(副駆動輪)
16:後輪(主駆動輪)
18:動力伝達装置(車両用動力伝達装置)
26:トランスファー(駆動力配分装置)
90:電子制御装置(制御装置)
92a:エンジン制御部
92b:電動機制御部
96:走行モード制御部
106:副変速機(変速機)
120:副変速機用噛合クラッチ(噛合式クラッチ)
MG:電動機
Claims (10)
- エンジンと、電動機と、駆動力を主駆動輪と副駆動輪とに配分する駆動力配分装置と、を備えたハイブリッド車両の、制御装置であって、
前記エンジンの作動状態を制御するエンジン制御部と、
運転者により選択される走行モードを実現するように前記ハイブリッド車両の走行を制御する走行モード制御部と、
を含み、
前記走行モードは、前記主駆動輪のみに前記駆動力を配分して走行する主駆動輪駆動モードと、前記主駆動輪と前記副駆動輪との何れもに前記駆動力を配分して走行する全輪駆動モードと、を含むものであり、
前記エンジン制御部は、前記エンジンが停止状態であるときの前記主駆動輪駆動モードにおいて、前記全輪駆動モードが選択された場合には、前記走行モード制御部による前記主駆動輪駆動モードから前記全輪駆動モードへの切替えが完了させられるまで前記エンジンの停止状態を維持し、前記運転者により前記ハイブリッド車両を走行させる為の所定操作が為された後に前記エンジンを始動することを特徴とするハイブリッド車両の制御装置。 - 前記全輪駆動モードは、前記主駆動輪駆動モードと比較して、前記ハイブリッド車両の稼働時間に対する前記エンジンの運転時間の比である前記エンジンの運転比率が高くされるように前記エンジンの作動状態が制御される走行モードであ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制御装置。
- 前記所定操作は、前記駆動力を増大する加速要求操作であることを特徴とする請求項1又は2に記載のハイブリッド車両の制御装置。
- 前記所定操作は、前記駆動力を増大する加速要求操作であり、
前記エンジン制御部は、前記ハイブリッド車両が停止中であるときの前記主駆動輪駆動モードにおいて前記全輪駆動モードが選択されたときに、前記駆動力を伝達する車両用動力伝達装置が前記駆動力を伝達不能とする非走行位置を選択する状態から前記車両用動力伝達装置が前記駆動力を伝達可能とする走行位置を選択する状態への切替操作が為された場合は前記エンジンの停止状態を維持し、前記切替操作後に前記加速要求操作が為された場合に前記エンジンを始動することを特徴とする請求項1又は2に記載のハイブリッド車両の制御装置。 - 前記主駆動輪駆動モードから前記全輪駆動モードへ切り替えられた際に前記エンジンが停止状態とされている場合には、クリープ現象を生じさせる所定トルクを前記電動機から出力させる電動機制御部を更に含むことを特徴とする請求項1又は2に記載のハイブリッド車両の制御装置。
- 前記電動機制御部は、前記所定トルクを前記電動機から出力させているときの前記全輪駆動モードにおいて、前記主駆動輪駆動モードが選択された場合には、前記走行モード制御部による前記全輪駆動モードから前記主駆動輪駆動モードへの切替えが完了させられてから所定時間経過後に前記電動機の出力トルクを前記所定トルクからゼロに向けて低下させることを特徴とする請求項5に記載のハイブリッド車両の制御装置。
- 前記電動機制御部は、前記駆動力を伝達する車両用動力伝達装置が前記駆動力を伝達不能とする非走行位置にあるときに前記全輪駆動モードから前記主駆動輪駆動モードへ切り替えられた場合に、前記電動機の出力トルクを低下させることを特徴とする請求項6に記載のハイブリッド車両の制御装置。
- 前記全輪駆動モードは、前記駆動力配分装置に設けられた、噛合式クラッチの作動によってローギヤ段とハイギヤ段とが択一的に形成される変速機が前記ローギヤ段とされたローギヤ全輪駆動モードと、前記変速機が前記ハイギヤ段とされたハイギヤ全輪駆動モードと、を含むものであり、
前記主駆動輪駆動モードは、前記変速機が前記ハイギヤ段とされたハイギヤ主駆動輪駆動モードであり、
前記ハイブリッド車両が停止中であるときに、前記ハイギヤ主駆動輪駆動モードから前記ハイギヤ全輪駆動モードへ切り替えられた際に前記エンジンが停止状態とされている場合には、クリープ現象を生じさせる所定トルクを前記電動機から出力させる電動機制御部を更に含むことを特徴とする請求項1又は2に記載のハイブリッド車両の制御装置。 - 前記電動機制御部は、前記エンジン及び前記電動機が共に停止状態とされているときの前記ハイギヤ主駆動輪駆動モードでの制御時に、前記ハイギヤ全輪駆動モードが選択された場合に、前記所定トルクを前記電動機から出力させることを特徴とする請求項8に記載のハイブリッド車両の制御装置。
- 前記エンジン制御部は、前記主駆動輪駆動モードでは、前記エンジンを運転状態と停止状態とで切り替えるエンジン間欠作動を許可する一方で、前記全輪駆動モードでは、前記エンジンの運転状態から停止状態への切替えを禁止することを特徴とする請求項1又は2に記載のハイブリッド車両の制御装置。
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