PROBLEM TO BE SOLVED: To provide an electric automobile brake control apparatus capable of eliminating a brake force shortage for a vehicle under limitation of charging, with a configuration of a four-wheel-drive automobile that drives a front wheel and a rear wheel with respective traveling-motors.SOLUTION: During a travel of a vehicle 1, in a case where an accelerator is turned off (Yes for S2), with charging of a traveling motor 11 limited (Yes for S1), shift amounts of front and rear suspensions detected by a stroke sensor 32 is read (S3), and ground loads of front and rear wheels 3, 5 are calculated from the shift amounts (S4). Then, if the ground load of the front wheel is larger than that of the rear wheel, a front motor 4 is set toward a regeneration side and a rear motor 6 is set toward a power-running side (S6), whereas if the ground load of the front wheel is smaller than that of the rear wheel, the rear motor 6 is set toward a regeneration side and the front motor 4 is set toward the power-running side (S7), thus controlling the front and rear motors 4, 6 under regeneration or power-running on the basis of the aforementioned settings.SELECTED DRAWING: Figure 2
【課題】前輪及び後輪を個別に走行用モータで駆動する4輪駆動車の構成を採った上で、充電制限中の車両の制動力不足を解消できる電気自動車の制動制御装置を提供する。【解決手段】車両1の走行中において、走行用バッテリ11への充電制限中であり(S1がYes)、アクセルがオフ操作されると(S2がYes)、ストロークセンサ32により検出される前後のサスペンションの変位量を読み込み(S3)、それらの変位量から前後輪3,5の接地荷重を算出する(S4)。そして、接地荷重が前輪>後輪のときにはフロントモータ4を回生側に、リヤモータ6を力行側に設定し(S6)、接地荷重が前輪≦後輪のときにはリヤモータ6を回生側に、フロントモータ4を力行側に設定し(S7)、それらの設定に基づきフロント及びリヤモータ4,6を回生制御または力行制御する。【選択図】図2
ELECTRIC AUTOMOBILE BRAKE CONTROL APPARATUS
電気自動車の制動制御装置
2017-02-16
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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