PROBLEM TO BE SOLVED: To ensure a necessary brake force and prevent a driver from feeling discomfort in operation feel for a brake operation.SOLUTION: A main controller 20 decelerates a vehicle by exerting any one of a single regenerative brake control to decelerate the vehicle by a regenerative brake force by regenerative power of a front motor 3 and a rear motor 4 depending on a magnitude relation between a required brake force calculated based on a brake pedal pressing amount detected by a brake pedal sensor 54 and a regenerative brake force upper limit determined based on a vehicle speed detected by a vehicle speed sensor 53, and a cooperative regenerative brake control to decelerate the vehicle by a mechanical brake force by a hydraulic brake device 30 and the regenerative brake force.
【課題】必要な制動力を確保するとともに、ブレーキ操作の操作感覚に違和感が生じることを防ぐ。【解決手段】メインコントローラ20は、ブレーキペダルセンサ54により検出されたブレーキペダル踏込量に基づいて演算された要求制動力と、車速センサ53で検出された車速に基づいて決定された回生制動力上限値との大小関係により、フロントモータ3およびリアモータ4の回生電力による回生制動力で車両を減速する単独回生制動制御と、油圧ブレーキ装置30による機械式制動力および回生制動力により車両を減速する回生協調制動制御のいずれか一方により車両を減速させる。【選択図】図2
HYBRID ELECTRIC WORK VEHICLE
ハイブリッド式作業車両
2015-06-22
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / E02F Baggern , DREDGING |
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