公开(公告)号：US20230095906A1

公开(公告)日：2023-03-30

申请号：US17882055

申请日：2022-08-05

Applicant: Stoneridge Control Devices, Inc.

Inventor： Benjamin Allen Harriger ,  Robert James Steinman ,  Trevor Adam Pryor ,  Mark William Peters

IPC: F02M25/08

Abstract: A leak detection module (LDM) includes a housing, a canister valve solenoid (CVS) that is arranged within the housing and in fluid communication along a first fluid passageway between first and second ports. The module also includes a pump that is arranged within the housing and is in fluid communication with the first and second ports, and a pressure sensor that is in fluid communication with at least one of the first and second ports. A first controller is arranged in the housing and is in communication with the pump, the CVS and the pressure sensor. The first controller runs a test procedure using the pump and operating the CVS between open and closed positions to monitor a pressure within the module. The first controller communicates a result based upon the monitored pressure to a second controller that is arranged outside the housing and remotely from the module.

公开(公告)号：US11773809B2

公开(公告)日：2023-10-03

申请号：US17882055

申请日：2022-08-05

Applicant: Stoneridge Control Devices, Inc.

Inventor： Benjamin Allen Harriger ,  Robert James Steinman ,  Trevor Adam Pryor ,  Mark William Peters

IPC: F02M25/08

CPC classification number: F02M25/0818 ,  F02M25/0836 ,  F02M25/0854 ,  F02M2025/0845

Abstract: A leak detection module (LDM) includes a housing, a canister valve solenoid (CVS) that is arranged within the housing and in fluid communication along a first fluid passageway between first and second ports. The module also includes a pump that is arranged within the housing and is in fluid communication with the first and second ports, and a pressure sensor that is in fluid communication with at least one of the first and second ports. A first controller is arranged in the housing and is in communication with the pump, the CVS and the pressure sensor. The first controller runs a test procedure using the pump and operating the CVS between open and closed positions to monitor a pressure within the module. The first controller communicates a result based upon the monitored pressure to a second controller that is arranged outside the housing and remotely from the module.