JP6036639B2 - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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- JP6036639B2 JP6036639B2 JP2013217134A JP2013217134A JP6036639B2 JP 6036639 B2 JP6036639 B2 JP 6036639B2 JP 2013217134 A JP2013217134 A JP 2013217134A JP 2013217134 A JP2013217134 A JP 2013217134A JP 6036639 B2 JP6036639 B2 JP 6036639B2
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Description
本発明の車両制御装置は、車両の駆動軸の回転数に同期した回転数で駆動する三相交流電動機と、直列に接続された第1スイッチング素子及び第2スイッチング素子を前記三相交流電動機の三相の夫々に備え、前記三相交流電動機に供給される電力を直流から交流に変換する電力変換器とを備える車両を制御する車両制御装置であって、前記三相交流電動機の回転数が所定の閾値以下であるか否か及び前記車両を停止させることが可能な停止動作が行われているか否かを判定する第1判定手段と、前記三相交流電動機の回転数が前記所定の閾値以下であり且つ前記停止動作が行われていると前記第1判定手段が判定している場合に、前記車両が停止していると判定する第2判定手段と、前記車両のずり下がりを判定するずり下がり判定手段と、前記車両が停止していると前記第2判定手段が判定しており、且つ前記車両がずり下がっていないと前記ずり下がり判定手段が判定している場合に、前記電力変換器の状態が、前記第1スイッチング素子及び前記第2スイッチング素子の一方の全てがオフになると共に前記第1スイッチング素子及び前記第2スイッチング素子の他方の少なくとも一つがオンになる特定状態となるように、前記電力変換器を制御する制御手段とを備える。
本発明の車両制御装置の他の態様では、前記ずり下がり判定手段は、前記三相交流電動機の回転角に基づいて、前記車両のずり下がりを判定する。
上述の如く三相交流電動機の回転角に基づいて車両のずり下がりを判定する態様では、前記ずり下がり判定手段は、現在の前記三相交流電動機の回転角と、前回検出された前記三相交流電動機の回転角との差分に基づいて、前記車両のずり下がりを判定してもよい。
本発明の車両制御装置の他の態様では、前記ずり下がり判定手段は、前記三相交流電動機の回転数に基づいて、前記車両のずり下がりを判定する。
上述の如く三相交流電動機の回転数に基づいて車両のずり下がりを判定する態様では、前記ずり下がり判定手段は、前記三相交流電動機の回転数の所定期間における平均値に基づいて、前記車両のずり下がりを判定してもよい。
初めに、図1から図6を参照しながら、第1実施形態について説明する。
まず、図1を参照しながら、第1実施形態の車両1の構成について説明する。図1は、第1実施形態の車両1の構成を示すブロック図である。
なお、車両1の駆動軸15がモータジェネレータMG2の回転軸に連結されていることを考慮すれば、車両1の駆動軸15の回転数は、モータジェネレータMG2の回転軸の回転数Ne2に同期する。例えば、車両1の駆動軸15の回転数は、モータジェネレータMG2の回転軸の回転数Ne2に比例する。従って、モータジェネレータMG2の停止に伴ってモータジェネレータの回転軸の回転数Ne2がゼロになる場合には、駆動軸15の回転数もまたゼロになるはずである。駆動軸15の回転数がゼロになるという状態は、実質的には、車両1が停止しているという状態と等価である。このため、モータジェネレータMG2の停止は、実質的には、車両1の停止に相当すると言える。停止判定部172は、モータジェネレータMG2が停止しているか否かを判定することに加えて又は代えて、車両1が停止しているか否かを判定してもよい。
続いて、図2を参照しながら、第1実施形態の車両1において行われる停止判定動作(つまり、ECU17が行う停止判定動作)の流れについて説明する。図2は、第1実施形態における停止判定動作の流れを示すフローチャートである。
次に、第2実施形態について説明する。なお、第2実施形態は、上述した第1実施形態と比べて一部の動作が異なるのみであり、その他の部分については概ね第1実施形態と同様である。このため、以下では第1実施形態と異なる部分について詳細に説明し、重複する部分については適宜説明を省略するものとする。
次に、第3実施形態について説明する。なお、第3実施形態は、上述した第1及び第2実施形態と比べて一部の動作が異なるのみであり、その他の部分については概ね第1及び第2実施形態と同様である。このため、以下では第1及び第2実施形態と異なる部分について詳細に説明し、重複する部分については適宜説明を省略するものとする。
次に、第4実施形態について説明する。なお、第4実施形態は、上述した第1から第3実施形態と比べて一部の構成及び動作が異なるのみであり、その他の部分については概ね第1から第3実施形態と同様である。このため、以下では第1から第3実施形態と異なる部分について詳細に説明し、重複する部分については適宜説明を省略するものとする。
13 インバータ
14 回転角センサ
15 駆動軸
17 ECU
171 インバータ制御部
172 停止判定部
173 ずり下がり判定部
19 漏電検出器
MG1、MG2 モータジェネレータ
ENG エンジン
Q1〜Q6 スイッチング素子
θ2 回転角
Ne2 回転数
etheta 電気角
Slope 車両の傾き
BK ブレーキ踏力値
Claims (5)
- 車両の駆動軸の回転数に同期した回転数で駆動する三相交流電動機と、直列に接続された第1スイッチング素子及び第2スイッチング素子を前記三相交流電動機の三相の夫々に備え、前記三相交流電動機に供給される電力を直流から交流に変換する電力変換器とを備える車両を制御する車両制御装置であって、
前記三相交流電動機の回転数が所定の閾値以下であるか否か及び前記車両を停止させることが可能な停止動作が行われているか否かを判定する第1判定手段と、
前記三相交流電動機の回転数が前記所定の閾値以下であり且つ前記停止動作が行われていると前記第1判定手段が判定している場合に、前記車両が停止していると判定する第2判定手段と、
前記車両のずり下がりを判定するずり下がり判定手段と、
前記車両が停止していると前記第2判定手段が判定しており、且つ前記車両がずり下がっていないと前記ずり下がり判定手段が判定している場合に、前記電力変換器の状態が、前記第1スイッチング素子及び前記第2スイッチング素子の一方の全てがオフになると共に前記第1スイッチング素子及び前記第2スイッチング素子の他方の少なくとも一つがオンになる特定状態となるように、前記電力変換器を制御する制御手段と
を備えることを特徴とする車両制御装置。 - 前記ずり下がり判定手段は、前記三相交流電動機の回転角に基づいて、前記車両のずり下がりを判定することを特徴とする請求項1に記載の車両制御装置。
- 前記ずり下がり判定手段は、現在の前記三相交流電動機の回転角と、前回検出された前記三相交流電動機の回転角との差分に基づいて、前記車両のずり下がりを判定することを特徴とする請求項2に記載の車両制御装置。
- 前記ずり下がり判定手段は、前記三相交流電動機の回転数に基づいて、前記車両のずり下がりを判定することを特徴とする請求項1に記載の車両制御装置。
- 前記ずり下がり判定手段は、前記三相交流電動機の回転数の所定期間における平均値に基づいて、前記車両のずり下がりを判定することを特徴とする請求項4に記載の車両制御装置。
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CN201480056560.7A CN105636822B (zh) | 2013-10-18 | 2014-10-15 | 车辆控制设备和控制方法 |
PCT/IB2014/002125 WO2015056081A1 (en) | 2013-10-18 | 2014-10-15 | Control apparatus and control method of vehicle |
US15/029,858 US9884568B2 (en) | 2013-10-18 | 2014-10-15 | Control apparatus and control method of vehicle |
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CN113007347B (zh) * | 2021-03-10 | 2022-03-04 | 中国第一汽车股份有限公司 | 变速器p挡驻车控制方法、系统、车辆及存储介质 |
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US11904687B2 (en) | 2020-12-09 | 2024-02-20 | Subaru Corporation | Vehicle control apparatus |
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