Toyota Jidosha Kabushiki Kaisha

Miyu Haga

Shigeki Hasegawa

Nobukazu Mizuno

Seiichi Tanaka

Naotoshi Kadotani

Susumu Oikawa

Satoshi Omi

Shunsuke Mogi

Kenjo Miyashita

Takahiro Sakamoto

Shuta Yokota

A mobile object is configured to transmit, in response to a gesture of a traffic participant existing in the vicinity of the mobile object being a stop request, an inquiry signal including position information of the traffic participant to a server in order to confirm whether the mobile object provides a specific service to which the traffic participant who has performed the gesture is subscribed. The server is configured to determine, in response to receiving the inquiry signal, whether the traffic participant who made the gesture is one of users subscribed to the specific service and transmit an answer signal including a result of the determination to the mobile object. The mobile object is further configured to perform, in response to receiving the answer signal, an action according to a result of the determination included in the answer signal.

Mobility system and server

A fuel cell system includes a fuel cell stack, a fuel gas supply path, an injector, an ejector, a circulation path, a pressure difference detection unit that detects a pressure difference between an ejector inlet port pressure and an ejector outlet port pressure, and a control device. The control device calculates a required circulation flow rate that is required for a fuel off gas supplied from the fuel cell stack to the ejector, based on a required load for the fuel cell stack, calculates an estimated circulation flow rate that is an estimated flow rate of the fuel off gas supplied from the fuel cell stack to the ejector, based on the required load and the pressure difference, and increases the flow rate of a fuel gas supplied from the injector to the fuel cell stack when the estimated circulation flow rate is lower than the required circulation flow rate.

Fuel cell system

A fuel cell system includes a fuel cell stack, a fuel gas supply path, an injector, an ejector, a circulation path, an outlet port pressure detection unit, and a control device. The control device stops driving the injector when an ejector outlet port pressure is equal to or more than a required upper limit value with the injector driven, and drives the injector when the ejector outlet port pressure is equal to or less than a required lower limit value with the injector stopped. The control device reduces the required upper limit value stepwise and reduces the required lower limit value stepwise in a range defined by a first target upper limit value and a second target upper limit value when a required load is varied from a first required load to a second required load and a load reduction amount is more than a first predetermined load.

Growing community of inventors

Susuno, Japan

Miyu Haga