Patent ID: 11962046
Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 5:
6. A system comprising:
a coolant loop acting as a conduit for a coolant for cooling a fuel cell;
an ion exchanger fluidly connected to the coolant loop and configured to deionize the coolant;
reservoir fluidly connected to the coolant loop;
a conductivity sensor at least partially disposed within the reservoir and configured to output an electrical signal indicating a conductivity of the coolant within the reservoir; and
a processor in communication with the conductivity sensor and a memory, the memory having a conductivity monitoring module having instructions that, when executed by the processor, cause the processor to:
determine the conductivity of the coolant within the reservoir based on the electrical signal from the conductivity sensor, and
determine when the ion exchanger requires servicing based on the conductivity of the coolant.