Patent ID: 11919355
Assignee: DRIV AUTOMOTIVE INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 9:
10. The valve diagnostic system of claim 1 wherein:
the state module is configured to, after setting the present state to the first state, selectively set the present state of the valve diagnostic for the valves of the suspension system to a second state in the predetermined order of states;
the valve control module is configured to determine second target open and closed states for the valves of the suspension system based on the present state being set to the second state and to open and close the valves of the suspension system according to the second target open and closed states, respectively;
the pump control module is configured to, when the valves are in the second target open and closed states, respectively, selectively operate an electric pump of the suspension system in a first direction and pump hydraulic fluid toward the suspension system; and
the diagnosis module is configured to:
record third values of the pressures within the suspension system measured using the pressure sensors, respectively, before the operation of the electric pump in the first direction while the valves are in the second target open and closed states;
record fourth values of the pressures within the suspension system measured using the pressure sensors, respectively, after a beginning of the operation of the electric pump while the valves are in the second target open and closed states; and
selectively diagnose faults in a second subset of the valves that is different than the first subset of the valves based on whether second pressure increases occurred in (b) the fourth values of the pressures relative to (a) the third values of the pressures, respectively.