The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2023
Filed:
Mar. 03, 2021
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Jared M. Farnsworth, San Francisco, CA (US);
Daniel C. Folick, Long Beach, CA (US);
Shigeki Hasegawa, Aichi, JP;
Nobukazu Mizuno, Aichi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US);
Abstract
Systems and methods for controlling fluid flow in a fuel cell circuit of a vehicle. A system may have a fuel cell stack configured to receive hydrogen gas. The system may have a current sensor configured to detect current flowing through the fuel cell stack. The system may have a plurality of actuators, which may include at least one injector, a pump, and a shut valve. The system may have an electronic control unit (ECU). The ECU may estimate pressures of the hydrogen gas and non-hydrogen gases in the circuit. The ECU may determine a current increase rate based on the detected current. The ECU may apply a compensatory hydrogen gas stoic to a base hydrogen gas stoic to meet a target hydrogen gas stoic by controlling one or more of the actuators based on the estimated pressures when the current increase rate is above a predetermined threshold value.