PROBLEM TO BE SOLVED: To prevent re-intervention of ABS when recovering a regeneration brake by cancellation of the ABS to increase occasion of the regeneration brake so as to improve a practical fuel consumption (practical power consumption).SOLUTION: In a vehicle brake force control device, in a case that a control intervention of ABS is detected during a regenerative cooperative brake control by regenerative brake force and fluid pressure brake force, the regenerative brake force is replaced with the fluid pressure brake force equivalent thereto (S11) to perform brake control only by the fluid pressure brake (S18). When cancellation of the ABS is detected (S14) and when wheel slip quantity Fslip is smaller than a threshold value Δg where re-intervention of the ABS is predicted and a vehicle speed Vs is higher than the regenerable speed Vr that is a margin speed where an electric motor 4 is regenerable, recovery of regenerative energy is determined to be possible so as to return the required fluid pressure brake force that has been replaced to the required regenerative brake force (S17) and re-start the regenerative cooperative brake control (S6).SELECTED DRAWING: Figure 3
【課題】ABSの解除による回生ブレーキの復帰に際し、ABSの再介入を防止することで回生ブレーキの機会を増やし、実用燃費(実用電費)の向上を図る。【解決手段】回生制動力と液圧制動力とによる回生協調ブレーキ制御中にABSの制御介入を検出した場合、回生制動力をそれと等価の液圧制動力にすり替え(S11)、液圧ブレーキのみによる制動制御を行う(S18)。そしてABSの解除が検出された場合(14)、そのときの車輪スリップ量FslipがABSの再介入を予測する閾値Δgよりも低く、且つ、車速Vsが電動モータ4の回生可能な余裕速度である回生可能速度Vrよりも高い場合、回生エネルギの回収が可能と判定し、すり替えた要求液圧制動力を要求回生制動力に戻し(S17)、回生協調ブレーキ制御を再開させる(S6)。【選択図】図3
VEHICLE BRAKE FORCE CONTROL DEVICE
車両の制動力制御装置
2018-03-22
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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 / 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 |
Brake force control apparatus for vehicle and brake force control method for vehicle
European Patent Office | 2016
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