Toyota Jidosha Kabushiki Kaisha

Masaki Kusada

Toshio Inoue

Takashi Suzuki

Makoto Yamazaki

Katsuhiko Yamaguchi

Hiroshi Kanai

Katsuhiko Hirose

Takahiro Nishigaki

Toshifumi Takaoka

Tomoko Oba

Masakiyo Kojima

Yusuke Mamada

Abhilasha Sumangal Devaraj

Naoto Suzuki

There is provided an electrically driven vehicle used for a car sharing system and configured to appropriately increase the temperature of a power storage device. The electrically driven vehicle used for the car sharing system is provided with a power storage device and a temperature raising device configured to increase temperature of the power storage device. When a user operates a communication device to make a direct reservation or an indirect reservation of the electrically driven vehicle for driving, the electrically driven vehicle estimates a driving start time of the vehicle, based on the position of the communication device, sets a temperature-rising start time of the power storage device, based on the temperature of the power storage device and the estimated driving start time, and controls the temperature raising device to start a temperature increase of the power storage device at the set temperature-rising start time.

Electrically driven vehicle

An object is to enable a vehicle to be sufficiently used as a power source when the vehicle is located in an area where a disaster occurs. There is provided a vehicle including a driving system configured to generate electric power by using a fuel and to output power for driving; a power storage device configured to transmit electric power to and from the driving system; a power feeding device configured to supply generated power that is generated by the driving system and/or electric power from the power storage device, to an external device; and a control device configured to control the driving system and the power feeding device. When the vehicle is located in the area where the disaster occurs, the control device performs a recommendation process to recommend that a user sets a charge priority mode, which gives priority to charging of the power storage device over driving.

Vehicle including a hybrid electric control unit

During the catalyst warm-up period, when control enabling reduction in hydrocarbons is not executed in gasoline engine, the opening of the throttle valveis made smaller in order to reduce the hydrocarbon discharge. During the catalyst warm-up period, when control enabling reduction in the quantity of hydrocarbons is executed in gasoline engine, the opening of the throttle valveis made larger in order to accelerate warm-up of the catalyst, thereby shortening the catalyst warm-up period. A shorter catalyst warm-up period enables reduction in the total quantity of hydrocarbons from engine startup to the end of the catalyst warm-up period.

Power output apparatus and control method for same

Method and apparatus for controlling a vehicle so as to purify an exhaust emission from an internal combustion engine with an exhaust-emission purifying catalyst disposed in an exhaust system of the engine, and such that the engine is brought into a temporary engine-stop state while a predetermined vehicle condition is satisfied, wherein the engine is operated for heating the catalyst, when a temperature of the catalyst has been lowered below a predetermined lower limit threshold, even while the predetermined vehicle condition is still satisfied. The catalyst maintains an exhaust-emission purifying ability at a temperature above the lower limit threshold. When the catalyst temperature has been raised to a predetermined upper limit threshold, as a result of the engine operation, the engine is restored to the temporary engine-stop state if the predetermined condition is still satisfied. The present method and apparatus permit the catalyst temperature to be held at a level higher than the activation lower limit, while minimizing the reduction of an effect of the temporary engine stop in an economy-running-system vehicle or a hybrid vehicle.

Apparatus and method for controlling vehicle so as to purify exhaust emission from engine

The invention provides an HC-discharge suppressing device and an operational method of suppressing the discharge of HC for a vehicle equipped with an engine that has an exhaust system including an HC adsorbent and an HC oxidation catalyst and that is stopped temporarily upon fulfillment of a predetermined condition for operating the vehicle. According to the device and method of the invention, the engine is controlled after cold start thereof in accordance with a temperature of the HC adsorbent and a temperature of the HC oxidation catalyst, in such a manner as to minimize the amount of HC discharged from the exhaust system to the atmosphere. Thus, if such an HC-discharge suppressing device is installed in a vehicle whose engine is frequently started at a low temperature, it becomes possible to reduce the amount of HC discharged from an exhaust system of the vehicle to the atmosphere.

HC-discharge suppressing device for vehicle and operational method of suppressing discharge of HC

An output state detecting apparatus is arranged to detect a reaction torque of a motor and detect an output state of an internal-combustion engine from the reaction torque. The apparatus comprises an internal-combustion engine, a generator driven by the internal-combustion engine to generate electric power, torque detecting means for detecting a reaction torque of this generator, and output state detecting means for detecting an output state of the internal-combustion engine. The output state detecting means detects the output state of the internal-combustion engine, based on the reaction torque of the motor detected by the torque detecting means.

Output state detector for internal combustion engine

A catalyst deterioration detecting apparatus for a hybrid vehicle having an internal combustion engine and an electric motor as power sources includes an air-fuel ratio sensor downstream of a catalyst disposed in an exhaust passage of the engine. An amount of oxygen stored in the catalyst is estimated and, based on the estimated amount of oxygen and an output produced by the air-fuel ratio sensor after the engine is restarted after having been temporarily stopped, it is determined whether the catalyst has excessively deteriorated.

Growing community of inventors

Toyota, Japan

Masaki Kusada