FUEL CELL VEHICLE

• Main Authors: NANBA RYOICHI, OURA JUNICHI
• Format: Patent
• Language: English; Japanese
• Published: 15.10.2020
• Subjects: BASIC ELECTRIC ELEMENTS; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

To provide a technology capable of stabilizing brake force in fuel cell vehicle.SOLUTION: The break control section of a fuel cell vehicle executes, in a period performing braking of the fuel cell vehicle in response to brake request, upper limit change processing for (i) limiting the upper limit power of regenerative electric power by regenerative operation to a predetermined first value or less, when the estimated amount of retained water is less than a predetermined second amount of water less than the first amount of water, (ii) setting the upper limit power to a second value lower than the first value by a predetermined value, when the estimated amount of retained water is not less than the second amount of water.SELECTED DRAWING: Figure 6 【課題】燃料電池車両において、制動力が安定できる技術を提供する。【解決手段】燃料電池車両の制動制御部は、制動要求に応じて燃料電池車両の制動を行っている期間において、（ｉ）推定した滞留水の水量が第１水量よりも少ない予め定めた第２水量未満の場合には、回生動作による回生電力の上限制限電力を予め定めた第１の値以下に制限し、（ｉｉ）推定した前記滞留水の水量が第２水量以上の場合には、上限制限電力を第１の値よりも予め定めた値分低くした第２の値に設定する上限変更処理を実行する。【選択図】図６