Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Tomoyuki Kako

Katsuhiko Samukawa

Yuji Honda

Tatsumi Kumada

Seiji Tanaka

Keiko Tanaka

Kei Okamoto

A fuel cell system including a fuel cell, includes: a heater core used by a heating device; a first circulation circuit arranged to circulate a heat medium through the fuel cell; a second circulation circuit arranged to circulate the heat medium through the heater core; a connection channel arranged to connect the first circulation circuit with the second circulation circuit and thereby circulate the heat medium between the first circulation circuit and the second circulation circuit; and a first temperature regulator located on the second circulation circuit and downstream of the heater core and configured to regulate temperature of the heat medium after flowing out of the heater core and before flowing into the fuel cell.

Fuel cell system and method of reducing decrease in power generation efficiency of fuel cell

An automotive air conditioning system designed to switch a ventilation mode to an air recirculation mode automatically when the contamination of outside air is greater than a given level. The system includes a mode selection prohibiting circuit that prohibits the switching between the air recirculation mode and the ventilation mode and operates the air conditioning system in the ventilation mode when the vehicle is traveling at high speeds or when the outside temperature is relatively low. This allows fresh air having a relatively lower humidity to be drawn into the passenger compartment, thereby avoiding fogging of inner surfaces of windows of the vehicle.

Air conditioning system for automotive vehicles

Growing community of inventors

Toyota, Japan

Tomoyuki Kako