公开(公告)号：US11326590B2

公开(公告)日：2022-05-10

申请号：US16737450

申请日：2020-01-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark R. Claywell ,  Alex Cooley ,  Bryan K. Pryor

IPC: F04B49/00 ,  F04B49/08 ,  F04B49/06 ,  F04B49/10 ,  F04B49/20

Abstract: A variable displacement pump for supplying fluid to a system is described. Controlling the variable displacement pump is determined based upon inputs from a fluidic pressure sensor and an accelerometer, and includes determining a desired fluidic pressure and monitoring, via the fluidic pressure sensor, an actual fluidic pressure. A pressure error term is determined based upon a difference between the actual fluidic pressure and the desired fluidic pressure. A time-integrated pressure error term is determined based upon the pressure error term, and a g-force is determined based upon an input signal from the accelerometer. The variable displacement pump is controlled in response to the time-integrated pressure error term when the g-force is greater than a threshold g-force.

公开(公告)号：US20210207594A1

公开(公告)日：2021-07-08

申请号：US16737450

申请日：2020-01-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark R. Claywell ,  Alex Cooley ,  Bryan K. Pryor

IPC: F04B49/00

Abstract: A variable displacement pump for supplying fluid to a system is described. Controlling the variable displacement pump is determined based upon inputs from a fluidic pressure sensor and an accelerometer, and includes determining a desired fluidic pressure and monitoring, via the fluidic pressure sensor, an actual fluidic pressure. A pressure error term is determined based upon a difference between the actual fluidic pressure and the desired fluidic pressure. A time-integrated pressure error term is determined based upon the pressure error term, and a g-force is determined based upon an input signal from the accelerometer. The variable displacement pump is controlled in response to the time-integrated pressure error term when the g-force is greater than a threshold g-force.