To provide a regenerative brake control device for an electric vehicle that is able to hinder occurrence of a slip on a low μ road and makes less likely to cause a feeling of incongruity of a change in deceleration on the low μ road and a high μ road.SOLUTION: When a road surface friction coefficient acquired by a road surface friction coefficient acquisition unit (101) is small, a regenerative torque control unit (102) makes regenerative torque small in comparison with that when the road surface friction coefficient is large, and increases a rising gradient of regenerative torque at the start of regeneration. This makes it possible to hinder occurrence of a slip on a low μ road and makes less likely to cause a feeling of incongruity of a change in deceleration on the low μ road and a high μ road.SELECTED DRAWING: Figure 2
【課題】低μ路においてスリップの発生を抑止し得るとともに、低μ路と高μ路における減速感の変化に違和感を生じ難い、電動車両の回生制動制御装置を提供することを目的とする。【解決手段】回生トルク制御部(102)は、路面摩擦係数取得部(101)が取得した路面摩擦係数が小さい場合は、路面摩擦係数が大きい場合に比較して、回生トルクを小さくするとともに、回生開始時の回生トルクの立ち上がり勾配を大きくするよう構成されており、低μ路においてスリップの発生を抑止し得るとともに、低μ路と高μ路における減速感の変化に違和感が生じ難くなっている。【選択図】図2
REGENERATIVE BRAKE CONTROL DEVICE FOR ELECTRIC VEHICLE
電動車両の回生制動制御装置
2021-10-21
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |