To provide a braking control device for an electric vehicle, capable of improving regeneration efficiency while suppressing a change in behavior in a pitch direction during braking traveling.SOLUTION: A braking control device for an electric vehicle performs the followings: out of a pair of front wheels and a pair of rear wheels, identifying control target wheels having a small reaction force load against the pitching of the vehicle relative to the magnitude of braking force to be generated; determining a front-and-rear distribution ratio according to required braking force (Step S1); when the required braking force is equal to or greater than maximum regenerative braking force with which braking is enabled by each motor (Yes in Step S3), causing regenerative braking force to act on the control target wheels in the first place, and when there is surplus regenerative braking force, causing the surplus regenerative braking force to act on the other wheels (Step S6); and when the regenerative braking force of the control target wheels is not sufficient for control target braking force required for the control target wheels, causing friction braking force to act on the control target wheels in addition, and causing friction braking force to act on the other wheels (Step S7).SELECTED DRAWING: Figure 2
【課題】制動走行時におけるピッチ方向の挙動の変化を抑制しつつ、回生効率を向上させることができる電動車両の制動制御装置を提供する。【解決手段】一対の前輪と一対の後輪とのうち、発生させる制動力の大きさに対する車両のピッチングに対抗した反力荷重の大きさが小さい制御対象車輪を特定し、要求制動力に応じて前後配分比を定め(ステップS1)、要求制動力が各モータで制動可能な最大回生制動力以上である場合(ステップS3でYes)に、まず、制御対象車輪に回生制動力を作用させ、余剰の回生制動力がある場合には、他方の車輪に余剰の回生制動力を作用させ(ステップS6)、また制御対象車輪の回生制動力が制御対象車輪に要求される制御対象制動力を充足できない場合には、制御対象車輪に更に摩擦制動力を作用させるとともに、他方の車輪に摩擦制動力を作用させる(ステップS7)ように構成されている。【選択図】図2
BRAKING CONTROL DEVICE FOR ELECTRIC VEHICLE
電動車両の制動制御装置
2023-11-02
Patent
Electronic Resource
Japanese