PROBLEM TO BE SOLVED: To correctly estimate upstream liquid pressure of an inlet valve.SOLUTION: A vehicular brake liquid pressure control device comprises: an inlet valve 13 which is interposed on a liquid pressure path from a liquid pressure source to plural wheel brakes; and a control part 100 capable of executing anti-lock brake control. The control part 100 comprises: deceleration calculation means 140 for calculating wheel deceleration AW of each wheel; vehicle body deceleration determination means 150 for determining vehicle body deceleration AV on the basis of the wheel deceleration AW of each wheel; and master cylinder pressure estimation means 160 for estimating upstream liquid pressure of the inlet valve 13 on the basis of the vehicle body deceleration AV. The vehicle body deceleration determination means 150 determines the vehicle body deceleration AV on the basis of the residual wheel deceleration AW except for a maximum value and minimum value, of the wheel deceleration AW which is an anti-lock brake control non-execution wheel, in a case in which, at least three wheels are in a state of not executing the anti-lock brake control.SELECTED DRAWING: Figure 3
【課題】正確に入口弁の上流液圧を推定する。【解決手段】液圧源から複数の車輪ブレーキへの液圧路に介装された入口弁13と、アンチロックブレーキ制御を実行可能な制御部100とを有する車両用ブレーキ液圧制御装置である。制御部100は、各車輪の車輪減速度AWを算出する減速度算出手段140と、各車輪の車輪減速度AWに基づいて車体減速度AVを決定する車体減速度決定手段150と、車体減速度AVから入口弁13の上流液圧を推定するマスタシリンダ圧推定手段160とを備える。車体減速度決定手段150は、少なくとも3つの車輪がアンチロックブレーキ制御の非実行中である場合において、アンチロックブレーキ制御の非実行輪の車輪減速度AWの、最大値と最小値を除く残りの車輪減速度AWから車体減速度AVを決定する。【選択図】図3
VEHICULAR BRAKE LIQUID PRESSURE CONTROL DEVICE
車両用ブレーキ液圧制御装置
2016-10-06
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |