公开(公告)号：US06446435B1

公开(公告)日：2002-09-10

申请号：US09485236

申请日：2000-04-10

Applicant: Karl-Heinz Willmann ,  Dietmar Baumann ,  Hardy Haas ,  Stephane Schmit ,  Herbert Vollert ,  Andreas Reppich

Inventor： Karl-Heinz Willmann ,  Dietmar Baumann ,  Hardy Haas ,  Stephane Schmit ,  Herbert Vollert ,  Andreas Reppich

IPC: F15B700

CPC classification number: B60T8/4031 ,  B60T8/4872 ,  B60T13/686 ,  B60T17/02 ,  F04B11/005

Abstract: The invention relates to a vehicle hydraulic brake system with electrohydraulic brake boosting by a piston pump. In order to reduce pressure pulsations on an intake side of the multi-piston pump, the brake system embodies a multi-piston pump, for example, as a six-piston pump with stepped pistons that are driven with an alternating phase shift of 30° and 90° in relation to one another. The phase shift of the drive of the stepped pistons is selected so that the intake volume flows have a uniform phase shift, by which the total intake volume flow of the multi-piston pump has a reduced amplitude of the pressure pulsation, which reduces the repercussions on a master cylinder.

Abstract translation: 本发明涉及一种具有通过活塞泵电动液压制动器的车辆液压制动系统。 为了减少多活塞泵的进气侧的压力脉动，制动系统体现了多活塞泵，例如作为具有阶梯式活塞的六活塞泵，其以30°的交变相位驱动 相对于90°。 选择阶梯式活塞的驱动的相移，使得进气体积流动具有均匀的相移，通过该相移，多活塞泵的总进气体积流量具有降低的压力脉动的振幅，这减少了影响 在主缸上。