JP2008184088A - 車両駆動装置 - Google Patents
車両駆動装置 Download PDFInfo
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- JP2008184088A JP2008184088A JP2007020438A JP2007020438A JP2008184088A JP 2008184088 A JP2008184088 A JP 2008184088A JP 2007020438 A JP2007020438 A JP 2007020438A JP 2007020438 A JP2007020438 A JP 2007020438A JP 2008184088 A JP2008184088 A JP 2008184088A
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- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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Abstract
【解決手段】4輪駆動車両において、前輪14R,14Lはエンジン1により駆動し、後輪15R,15Lは電動機5により駆動される。高出力発電機2は、エンジン1によって駆動され、その発電電力により電動機5を駆動する。4WDCU100は、高出力発電機2の発電及び電動機5の駆動を制御するとともに、電動機5の電圧MHVと、高出力発電機2の出力電流Iaとから、電動機の誘起電圧Eを推定し、推定された誘起電圧Eの推定値から電動機の回転速度Nmを推定する。
【選択図】図2
Description
前記複数の回転速度推定手段の残りのうちの一つである第2の回転速度推定手段により推定された前記電動機の回転速度が、前記第1の所定値よりも大きな第2の所定値を超えた場合、前記電動機による前記車輪の駆動を停止するようにしたものである。
最初に、図1を用いて、本実施形態による4輪駆動装置を用いる4輪駆動車両の全体構成について説明する。
図1は、本発明の一実施形態による4輪駆動装置を用いる4輪駆動車両の全体構成を示すシステムブロック図である。
図2は、本発明の一実施形態による4輪駆動装置の構成を示すシステムブロック図である。
ここで、図3も参照して、本実施形態による4輪駆動装置の中の運転モード判定手段110の動作について説明する。
図3は、本発明の一実施形態による4輪駆動装置の中の運転モード判定手段の動作を示すタイミングチャートである。
図4は、本発明の一実施形態による4輪駆動装置の中の直流電動機トルク算出手段の構成を示すブロック図である。
図5は、本発明の一実施形態による4輪駆動装置の直流電動機トルク算出手段の中のアクセル感応トルク演算手段の動作を示す特性図である。
図6は、本発明の一実施形態による4輪駆動装置の直流電動機トルク算出手段の中の前後輪速差感応トルク演算手段の動作を示す特性図である。
図7は、本発明の一実施形態による4輪駆動装置の中のドライバ手段の構成を示すブロック図である。
図8は、本発明の一実施形態による4輪駆動装置の直流電動機回転速度推定手段の処理を示すフローチャートである。図9は、本発明の一実施形態による4輪駆動装置の直流電動機回転速度推定手段が用いる直流電動機誘起電圧定数算出テーブルの説明図である。
Nsr=VWRmax60/1000/(2π#Tk)×#DGR
として算出する。
E=MHV−(Ia×#Rm)
として算出する。ここで、#Rmは抵抗なのでサーミスタや温度推定手段を用いて温度補正することも可能である。
Nm = E × Ek
として算出する。そして、以上の処理により、直流電動機回転速度Nmを推定することができる。推定された直流電動機回転速度Nmは、直流電動機トルク算出手段130や、ドライバ手段150に供給される。
Ekpr = E / Nsr
として算出する。
2…高出力発電機
3…デファレンシャルギヤ
4…クラッチ
5…直流電動機
7…大容量リレー
8…エンジンコントロールユニット
9…トランスミッションコントロールユニット
10…アンチロックブレーキコントロールユニット
11…補機バッテリ
12…トランスミッション
13…補機発電機
14R,14L…前輪
15R,15L…後輪
16R,16L…前輪車輪速センサ
17R,17L…後輪車輪速センサ
100…4WDコントロールユニット
100A,100B…演算装置
110…モード判定手段
130…直流電動機トルク算出手段
131…アクセル感応トルク演算手段
133…トルク切替手段
135…前後輪速差感応トルク演算手段
150…ドライバ手段
152…直流電動機界磁電流算出手段
154…直流電動機電機子コイル電流算出手段
156,158…フィードバック制御手段
170…直流電動機回転速度推定手段
190,190A…直流電動機回転速度正常判定手段
Claims (10)
- 車載電源を駆動電源とし、原動機によって駆動される車輪とは異なる車輪に減速機を介して駆動力を供給する電動機と、
前記車載電源から前記電動機に供給される電力を制御して前記電動機の駆動を制御する制御手段と、
前記電動機の回転速度に関する情報を出力する手段と、を有し、
前記回転速度情報出力手段は、前記電動機の誘起電圧から前記電動機の回転速度を推定する回転速度推定手段であり、
前記制御手段は、前記回転速度推定手段によって推定された前記電動機の回転速度を含む入力情報に基づいて、前記車載電源から前記電動機に供給される電力を制御する
ことを特徴とする車両駆動装置。 - 請求項1に記載の車両駆動装置において、
前記電動機は界磁巻線を備えており、
前記回転速度推定手段は、前記界磁巻線に流れる界磁電流から第1の電動機誘起電圧定数Ekを推定し、この推定された第1の電動機誘起電圧定数Ekを用いて前記電動機の回転速度を推定する
ことを特徴とする車両駆動装置。 - 請求項2に記載の車両駆動装置において、
前記電動機から出力された駆動力はクラッチを介して前記車輪側に伝達されており、
前記回転速度推定手段は、前記クラッチの出力軸回転速度と前記電動機の回転速度とが同期している場合、前記クラッチの出力軸回転速度及び前記第1の誘起電圧推定値Ekから第2の電動機誘起電圧定数Ekprを推定すると共に、前記第1の電動機誘起電圧定数Ekと前記第2の電動機誘起電圧定数Ekprとの差分を、前記第1の電動機誘起電圧定数Ekにフィードバックする
ことを特徴とする車両駆動装置。 - 請求項3に記載の車両駆動装置において、
前記回転速度推定手段は、前記第1の電動機誘起電圧定数Ekと前記第2の電動機誘起電圧定数Ekprとの比較した結果を前記第1の電動機誘起電圧定数Ekにフィードバックする際、前記第2の電動機誘起電圧定数Ekprの値が、予め設定した範囲から外れている時には、前記フィードバックを禁止し、システムが異常であると判定する
ことを特徴とする車両駆動装置。 - 請求項3に記載の車両駆動装置において、
前記回転速度推定手段は、前記フィードバックされた前記第1の電動機誘起電圧定数Ekの値が、予め設定した範囲から外れた場合には、システムが異常であると判定する
ことを特徴とする車両駆動装置。 - 請求項3に記載の車両駆動装置において、
前記回転速度推定手段は、前記フィードバックされた前記第1の電動機誘起電圧定数Ekの値が、予め設定した範囲から外れた場合には、前記電動機が劣化状態にあると判定する
ことを特徴とする車両駆動装置。 - 請求項1に記載の車両駆動装置において、
前記回転速度推定手段を複数個備え、それぞれに前記電動機の回転速度を推定させる
ことを特徴とする車両駆動装置。 - 請求項7に記載の車両駆動装置において、
前記複数の回転速度推定手段のうちの一つである第1の回転速度推定手段により推定された前記電動機の回転速度が第1の所定値を超えた場合、前記電動機による前記車輪の駆動を停止し、
前記複数の回転速度推定手段の残りのうちの一つである第2の回転速度推定手段により推定された前記電動機の回転速度が、前記第1の所定値よりも大きな第2の所定値を超えた場合、前記電動機による前記車輪の駆動を停止する
ことを特徴とする車両駆動装置。 - 請求項8に記載の車両駆動装置において、
前記第1及び第2の回転速度推定手段には、前記電動機の界磁電流、前記原動機のみによる車輪駆動と前記原動機及び前記電動機による車輪駆動とを切り替えるための切替手段の状態、及びパワー系電圧のそれぞれに関する情報のうち、少なくとも一つが並列的に入力される
ことを特徴とする車両駆動装置。 - 原動機によって駆動される車輪とは異なる車輪に減速機を介して駆動力を供給する電動機と、
前記原動機によって駆動され、前記電動機を駆動するための電力を発生する発電機と、
前記発電機から前記電動機に供給される電力を制御して前記電動機の駆動を制御する制御手段と、
前記電動機の回転速度に関する情報を出力する手段と、を有し、
前記回転速度情報出力手段は、前記電動機の誘起電圧から前記電動機の回転速度を推定する回転速度推定手段であり、
前記制御手段は、前記回転速度推定手段によって推定された前記電動機の回転速度を含む入力情報に基づいて、前記発電機から前記電動機に供給される電力を制御する
ことを特徴とする車両駆動装置。
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JP2007020438A JP4516576B2 (ja) | 2007-01-31 | 2007-01-31 | 車両駆動装置 |
CNA200810003854XA CN101234609A (zh) | 2007-01-31 | 2008-01-24 | 车辆驱动装置 |
US12/019,129 US7816874B2 (en) | 2007-01-31 | 2008-01-24 | Vehicle driving system |
EP08001450A EP1953056A3 (en) | 2007-01-31 | 2008-01-25 | Vehicle driving system |
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CN102991373A (zh) * | 2012-11-26 | 2013-03-27 | 精功镇江汽车制造有限公司 | 纯电动城市越野车 |
JP6243142B2 (ja) * | 2013-05-21 | 2017-12-06 | Ntn株式会社 | 電気自動車の制御装置 |
US9052006B1 (en) * | 2013-12-13 | 2015-06-09 | Hyundai Motor Company | Controlling method and system for reducing tip-in shock |
CN104228851B (zh) * | 2014-09-09 | 2017-10-31 | 绍兴安卡汽车配件有限公司 | 一种城市轨道列车的速度跟踪控制系统 |
CN107834948B (zh) * | 2017-11-14 | 2020-08-28 | 武汉欧拓莫科技有限公司 | 一种用于汽车电机控制安全输入的方法 |
CN108215937B (zh) * | 2017-12-29 | 2021-02-05 | 爱驰汽车有限公司 | 电动汽车蠕行控制方法、系统、设备及存储介质 |
JP7128771B2 (ja) * | 2019-05-20 | 2022-08-31 | 日立Astemo株式会社 | 車両用トランスファの制御装置 |
JP2020202691A (ja) * | 2019-06-12 | 2020-12-17 | 株式会社豊田自動織機 | 直流分巻モータの制御装置及びモータユニット |
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- 2008-01-24 CN CNA200810003854XA patent/CN101234609A/zh active Pending
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US7816874B2 (en) | 2010-10-19 |
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JP4516576B2 (ja) | 2010-08-04 |
EP1953056A2 (en) | 2008-08-06 |
EP1953056A3 (en) | 2011-04-06 |
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