Patent ID: 11938772
Assignee: DRIV AUTOMOTIVE INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 12:
13. A method of grading filling of a suspension system with hydraulic fluid, the method comprising:
during a first period, operating an electric pump of the suspension system in a first direction and decrease hydraulic fluid pressure within the suspension system;
during a second period, operating the electric pump of the suspension system in a second direction and increase hydraulic fluid pressure within the suspension system;
storing a first pressure of hydraulic fluid within the suspension system measured using a pressure sensor when the first pressure is less than or equal a first predetermined pressure while the pump is operated in the first direction;
storing a second pressure of hydraulic fluid within the suspension system measured using the pressure sensor when the second pressure is greater than or equal a second predetermined pressure while the pump is operated in the second direction; and
determining a grade value for filling of the suspension system with hydraulic fluid based on the first pressure and the second pressure.