JP2020078166A - 駆動力制御装置、駆動装置、及び駆動力伝達装置 - Google Patents
駆動力制御装置、駆動装置、及び駆動力伝達装置 Download PDFInfo
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Abstract
【解決手段】左右後輪25L,25Rに伝達される駆動力を制御する制御装置20は、左右後輪25L,25Rに空転が発生したとき、左右後輪25L,25Rに伝達する駆動力の制御量を車両加速度に基づいて設定する。駆動装置2は、電動モータ21と、電動モータ21の駆動力を車輪に伝達する駆動力伝達機構200と、電動モータ21を制御する制御装置20とを備える。
【選択図】図1
Description
に関する。
本発明の第1の実施の形態について、図1乃至図4を参照して説明する。なお、以下に説明する実施の形態は、本発明を実施する上での好適な具体例として示すものであり、技術的に好ましい種々の技術的事項を具体的に例示している部分もあるが、本発明の技術的範囲は、この具体的態様に限定されるものではない。
以上説明した第1の実施の形態によれば、左右後輪25L,25Rの空転によるスリップが発生した際、左右後輪25L,25Rに伝達する駆動力の制御量(FF制御量)を車両加速度に基づいて設定するので、例えば固定値によって左右後輪25L,25Rに伝達する駆動力の上限値を設定する場合に比較して、速やかにスリップ状態を解消して車両を前進させるための駆動力を回復させることが可能となる。
次に、本発明の第2の実施の形態について、図5を参照して説明する。図5は、本発明の第2の実施の形態に係る4輪駆動車1Aの構成を示す概略図である。図5において、図1等を参照して説明した第1の実施の形態に係る4輪駆動車1の構成要素に対応する構成要素については、第1の実施の形態で用いたものと同一の符号を付して重複した説明を省略する。
以上、本発明を第1及び第2の実施の形態に基づいて説明したが、これらの実施の形態は特許請求の範囲に係る発明を限定するものではない。また、実施の形態の中で説明した特徴の組合せの全てが発明の課題を解決するための手段に必須であるとは限らない点に留意すべきである。
2A…駆動力伝達装置
10…統合コントローラ(上位コントローラ)
11…パワーユニット(駆動源)
15L,15R…左右前輪
20,20A…制御装置(駆動力制御装置)
21…電動モータ(駆動源)
25L,25R…左右後輪(車輪)
43…クラッチ
Claims (12)
- 車輪に伝達される駆動力を制御する駆動力制御装置であって、
前記車輪に空転が発生したとき、当該車輪に伝達する駆動力の制御量を車両加速度に基づいて設定する、
駆動力制御装置。 - 前記車輪に空転が発生したときのスリップ率が当該車輪のスリップ率の目標値よりも大きい場合に、当該車輪に伝達する駆動力の制御量を前記車両加速度に基づいて設定する、
請求項1に記載の駆動力制御装置。 - 前記車輪に空転が発生したとき、前記車両加速度に応じて算出した車両加速度対応フィードフォワード制御量及び車両走行状態に基づいて算出された駆動力の指令値のうち、何れか小さい方をフィードフォワード制御量として設定する、
請求項1又は2に記載の駆動力制御装置。 - 前記フィードフォワード制御量に対して、前記車輪のスリップ率の目標値を基にフィードバック制御を行う、
請求項3に記載の駆動力制御装置。 - 前記車輪は4輪車両の後輪であり、
前記車両加速度は、車両前後方向の加速度を含み、
前記車両前後方向の加速度が高いほど前記車両加速度対応フィードフォワード制御量を大きく設定する、
請求項3又は4に記載の駆動力制御装置。 - 前記車両加速度は、車両左右方向の加速度を含み、
前記車両左右方向の加速度が低いほど前記車両加速度対応フィードフォワード制御量を大きく設定する、
請求項3乃至5の何れか1項に記載の駆動力制御装置。 - 前記車輪は4輪車両の後輪であり、
前記車両加速度は、車両前後方向の加速度及び車両左右方向の加速度を含み、
前記車両前後方向の加速度に対応する前後G対応フィードフォワード制御量から前記車両左右方向の加速度に対応する横G対応フィードフォワード制御量を減算して前記車両加速度対応フィードフォワード制御量を算出する、
請求項3乃至6の何れか1項に記載の駆動力制御装置。 - 前記車両加速度対応フィードフォワード制御量を路面摩擦係数の推定値を加味して設定する、
請求項3乃至7の何れか1項に記載の駆動力制御装置。 - 車両の駆動源としての電動モータと、
前記電動モータの駆動力を車輪に伝達する駆動力伝達機構と、
前記電動モータを制御する制御装置とを備え、
前記制御装置は、前記車輪に空転が発生したとき、当該車輪に伝達する駆動力の制御量を車両加速度に基づいて設定する、
駆動装置。 - 前記車輪に空転が発生したときのスリップ率が当該車輪のスリップ率の目標値よりも大きい場合に、当該車輪に伝達する駆動力の制御量を前記車両加速度に基づいて設定する、
請求項9に記載の駆動装置。 - 車両の駆動源の駆動力を車輪に伝達する駆動力伝達装置であって、
前記車輪に伝達される駆動力を調節可能なクラッチと、
前記クラッチを制御する制御装置とを備え、
前記制御装置は、前記車輪に空転が発生したとき、当該車輪に伝達する駆動力の制御量を車両加速度に基づいて設定する、
駆動力伝達装置。 - 前記車輪に空転が発生したときのスリップ率が当該車輪のスリップ率の目標値よりも大きい場合に、当該車輪に伝達する駆動力の制御量を前記車両加速度に基づいて設定する、
請求項11に記載の駆動力伝達装置。
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US16/669,571 US11247690B2 (en) | 2018-11-07 | 2019-10-31 | Driving force control apparatus, driving apparatus, and driving force transmission apparatus |
CN201911064590.3A CN111152787B (zh) | 2018-11-07 | 2019-11-04 | 驱动力控制装置、驱动装置和驱动力传动装置 |
DE102019129750.8A DE102019129750A1 (de) | 2018-11-07 | 2019-11-05 | Antriebskraftsteuergerät, Antriebsgerät und Antriebskraftübertragungsgerät |
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DE102019129750A1 (de) | 2020-05-07 |
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JP7234586B2 (ja) | 2023-03-08 |
CN111152787B (zh) | 2024-07-16 |
CN111152787A (zh) | 2020-05-15 |
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