To provide a regenerative brake system which can suppress fluctuation of supply voltage to an auxiliary machine during switching of regenerative operation by a travel motor, and an electric drive work vehicle with use of the same.SOLUTION: When regenerative operation is in progress, electric power on a main machine side is supplied to an auxiliary machine side so that a voltage on the auxiliary machine side becomes a predetermined first voltage value on the basis of an operation voltage specification of an auxiliary machine device, a power generator on the auxiliary machine side is stopped to stop supply of electric power to the auxiliary machine side, and electric power on the auxiliary machine side is supplied to a power storage device. When the regenerative operation is completed, electric power supply from the main machine side to the auxiliary machine side is stopped to start the power generator on the auxiliary machine side, the power generator on the auxiliary machine side is controlled so that a voltage on the auxiliary machine side becomes the first voltage value, and electric power of the power storage device is supplied to the auxiliary machine side to perform control so that the voltage on the auxiliary machine side becomes a second voltage value higher than the first voltage value.SELECTED DRAWING: Figure 2
【課題】走行モータによる回生動作の切り換わり時における補機への供給電圧の変動を抑制することができる回生制動システム、及び、それを用いた電気駆動作業車両を提供すること。【解決手段】回生動作中である場合には、主機側の電力を補機側に供給して、補機側の電圧が、補機装置の動作電圧仕様に基づいて予め定めた第一の電圧値となるようにし、補機側の発電機を停止して補機側への電力の供給を停止し、補機側の電力を蓄電装置に供給し、回生動作が終了した場合には、主機側から補機側への電力の供給を停止し、補機側の発電機を始動し、補機側の電圧が第一の電圧値となるように補機側の発電機を制御し、蓄電装置の電力を補機側に供給して、補機側の電圧が、第一の電圧値よりも高い第二の電圧値となるように制御する。【選択図】 図2
REGENERATIVE BRAKE SYSTEM, AND ELECTRIC DRIVE WORK VEHICLE WITH USE THEREOF
回生制動システム、及び、それを用いた電気駆動作業車両
2022-01-25
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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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