PROBLEM TO BE SOLVED: To provide a vehicular brake fluid pressure control device that is suppressed from determining by mistake whether or not there is an abnormality in controlled fluid pressure acting on a wheel brake and has excellent easiness of verification.SOLUTION: The vehicular brake fluid pressure control device, when motor load monitoring means 93 detects that increase in loads Lm of a motor (decrease in motor rotation speed Nm) is caused immediately after pressure reduction control, can determine that brake fluid relieved from wheel brakes FR and RL by the pressure reduction control is absorbed through a pump 70 which is driven by a motor 72 and then discharged to a fluid pressure source 12 side. Therefore, the device assumes that braking force by controlled fluid pressure is applied to the wheel brakes FR and RL at least before the pressure reduction control, and therefore interrupts determination by pressure abnormality determining means 90. This can suppress the device from determining by mistake that an abnormality occurs in the controlled fluid pressure.SELECTED DRAWING: Figure 1
【課題】車輪ブレーキに作用する制御液圧の異常の有無の誤判定が抑制され、且つ検証容易性に優れた車両用ブレーキ液圧制御装置を提供する。【解決手段】モータ負荷モニタ手段93により、減圧制御直後にモータ負荷Lmの上昇(モータ回転数Nmの減少)が発生したことを検出した場合には、前記減圧制御により車輪ブレーキFR、RLから逃がされたブレーキ液がモータ72で駆動されるポンプ70を通じて吸入され液圧源12側に吐出されていると判断できる。このため、少なくとも前記減圧制御の前は車輪ブレーキFR、RLに制御液圧による制動力がかかっていたとみなし圧力異常判定手段90による判定を中断する。これにより、制御液圧に異常が生じているとする誤判定を抑制できる。【選択図】図1
VEHICULAR BRAKE FLUID PRESSURE CONTROL DEVICE
車両用ブレーキ液圧制御装置
2017-10-05
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
European Patent Office | 2018
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