Toyota Jidosha Kabushiki Kaisha

Masahiro Kagami

Takashi Ogura

Koichiro Muta

Yoshiaki Kikuchi

Keisuke Morisaki

Hiroki Endo

Hideki Kamatani

Takao Itoh

Ryo Mano

Takuro Hayashi

Makoto Yamasaki

When a traveling state of a vehicle is switched, the vehicle requests delivery of an update program from an OTA server. For example, when the vehicle travels with an occupant on board, the vehicle requests delivery of an update program for manned vehicle traveling from the OTA server. When the vehicle travels with an occupant not on board, the vehicle requests delivery of an update program for unmanned vehicle traveling from the OTA server. When the OTA server receives the request for delivery of the update program for manned vehicle traveling/unmanned vehicle traveling, the OTA server delivers the requested update program for manned vehicle traveling/unmanned vehicle traveling to the vehicle. The vehicle updates a diagnosis program using the received update program for manned vehicle traveling/unmanned vehicle traveling.

Vehicle

When a diagnostic period of a specific failure arrives, a management center transmits, to a vehicle, an instruction to order execution of a failure diagnosis of the specific failure. When an ECU of the vehicle receives the instruction to order execution of the failure diagnosis from the management center, the ECU of the vehicle determines whether or not the failure diagnosis can be executed. When the failure diagnosis cannot be executed, the ECU causes the vehicle to continue traveling without executing the failure diagnosis, and ends a process. In this case, the ECU postpones the failure diagnosis in the current diagnostic period, and executes the failure diagnosis when a next diagnostic period arrives. When the ECU determines that the failure diagnosis can be executed, the ECU executes the failure diagnosis.

Controller for vehicle

A hybrid vehicle includes an engine, a motor, a power storage device, and an electronic control unit. The electronic control unit is configured to limit execution of power storage capacity decreasing control and execution of power storage capacity recovering control when a condition a) and a condition b) are both satisfied than when the condition a) and a condition c) are both satisfied, a) is parking at a predetermined point is predicted b) a temperature of the power storage device is out of a predetermined temperature range, and c) the temperature of the power storage device is within the predetermined temperature range.

Hybrid vehicle and controller for hybrid vehicle

An electric power storage system for a vehicle includes an electric power storage device, a temperature sensor, and a controller. The vehicle includes an ignition switch. The electric power storage device is mounted on the vehicle. The temperature sensor is configured to detect a temperature of the electric power storage device. The controller is configured to estimate a rest temperature of the electric power storage device at a time when the ignition switch is OFF. The controller is configured to acquire the temperature of the electric power storage device at a time when the ignition switch is ON by using the temperature sensor when the ignition switch is turned ON. The controller is configured to estimate the rest temperature by using an average value of at least two of a plurality of the temperatures acquired during a predetermined period. The plurality of temperatures are the temperatures of the electric power storage device which are acquired at a time when the ignition switch is turned ON during the predetermined period.

Electric power storage system for a vehicle and method for controlling electric power storage system for a vehicle

When a catalyst temperature is lower than a predetermined temperature on a second or subsequent start of an engine since system activation of a vehicle, a catalyst warm-up request is output for the purpose of warming up a catalyst in a catalytic converter. An output limit Wout of a battery is not increased in response to a second or subsequent output of the catalyst warm-up request, while being increased in response to a first output of the catalyst warm-up request. Accordingly, the catalyst warm-up in response to the second or subsequent output of the catalyst warm-up request since the system activation suppresses excessive output of electric power from the battery and thereby suppresses deterioration of the battery. Catalyst warm-up is performed in response to the second or subsequent output of the catalyst warm-up request. This suppresses deterioration of emission. As a result, this configuration satisfies both (balances) suppression of deterioration of the battery and suppression of deterioration of emission.

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Chiryu, Japan

Masahiro Kagami