Toyota Jidosha Kabushiki Kaisha

Suguru Kumazawa

Ryoji Sato

Hideki Kamatani

Yasutaka Tsuchida

Yoshinori Fujitake

Masaki Okamura

Yuki Nose

Koichiro Muta

Yuto Ikeda

Yoshiyuki Shogenji

Takanobu Gotoh

Keita Sato

Yuki Iizawa

Motohiko Taniyama

Shinnosuke Honda

Yoshihisa Umemura

A control device for a hybrid vehicle includes a deceleration control unit configured to control an engine and a motor as traveling power sources so as to control deceleration of the hybrid vehicle, a fuel cut control unit configured to restrict or permit fuel cut in the engine based on establishment or non-establishment of a predetermined condition, a traveling mode selection unit configured to select either a first traveling mode or a second traveling mode requiring deceleration higher than deceleration of the first traveling mode, and a deceleration limit unit configured to limit deceleration in restricting the fuel cut and in selecting the second traveling mode so as to be lower than deceleration in permitting the fuel cut and in selecting the second traveling mode.

Control device for hybrid vehicle

A vehicle control system, a vehicle control method, and a storage medium are provided. A stopping process stops fuel supply to one or more stopping cylinders and supplies fuel to one or more remaining cylinders during a load operation of an engine. During execution of the stopping process, a compensating process compensates for a decrease in output of the one or more stopping cylinders due to the execution of the stopping process by increasing output generated by combustion in the one or more remaining cylinders. The system control circuit causes, when the engine rotation speed of the engine is the same, the output after being increased by the compensating process to decrease as a shaft torque of the crankshaft of the engine increases.

Vehicle control system, vehicle control method, and storage medium

A controller and a control method for a hybrid electric vehicle are provided. An internal combustion engine and a first rotating electric machine are capable of applying power to a driven wheel via a power split device. A deactivating process deactivates combustion control in a deactivated cylinder that corresponds to one or more of cylinders of the internal combustion engine. A first compensation process sets, when the deactivating process is executed, torque of the first rotating electric machine to be larger than torque of the first rotating electric machine obtained prior to starting the deactivating process so as to compensate for at least some of a decrease amount of torque of the internal combustion engine resulting from the deactivating process.

Controller for hybrid electric vehicle and control method for hybrid electric vehicle

A torque reducing process reduces torque of a multiphase rotating electric machine when a magnitude of current in a particular phase of the rotating electric machine remains greater than or equal to a given value. A deactivating process deactivates combustion control in a deactivated cylinder and continues combustion control in the remaining cylinders. A fluctuation torque applying process cyclically fluctuates the torque of the rotating electric machine in a cycle that is an integral multiple of a compression top dead center occurrence cycle when the deactivating process is being executed. A prohibiting process prohibits execution of the deactivating process in a predetermined situation where a rotation speed of a rotary shaft of the rotating electric machine is less than or equal to a given speed.

Controller for hybrid electric vehicle, control method for hybrid electric vehicle, and memory medium

The ECU executes TRC for controlling the posture of the vehicle and automatic parking control for parking the vehicle at a target parking position without being based on the vehicle operation of the user. The ECU calculates a user accelerator opening based on the operation amount of the accelerator pedal and a control accelerator opening calculated in reverse from the required driving force of the vehicle.

Vehicle

A motor-driven vehicle includes: a motor for traveling; an inverter that drives the motor; and a controller configured to perform automatic parking control for parking the motor-driven vehicle at a target parking position without depending on a user's vehicle operation, and prohibit or stop the automatic parking control when a load limitation ratio is less than a threshold value, the load limitation ratio indicating a limitation level of a torque which is able to be output from the motor in response to a required torque for the motor.

Motor-driven vehicle

A controller for a hybrid electric vehicle including an internal combustion engine is provided. The internal combustion engine includes a filter arranged in an exhaust passage collect particulate matter from exhaust gas. The controller executes a first deceleration control process, a second deceleration control process, and a selection process. The first deceleration control process uses a fuel cutoff process when deceleration of the hybrid electric vehicle is required. The second deceleration control process does not use the fuel cutoff process when deceleration of the hybrid electric vehicle is required. The selection process selects execution of the second deceleration control process when a PM deposition amount is greater than or equal to a threshold value and selects execution of the first deceleration control process when the PM deposition amount is less than the threshold value.

Controller for hybrid electric vehicle and method for controlling hybrid electric vehicle

When an amount of particulate matters (PM) collected by a gasoline particulate filter (GPF) increases, a control processing unit (CPU) of an engine electronic control unit (ENG ECU) stops combustion control of some cylinders and executes a regeneration process to cause air-fuel ratios of air-fuel mixtures in the remaining cylinders to be richer than a stoichiometric air-fuel ratio. A CPU of a hybrid electric vehicle electronic control unit (HV ECU) increases a target rotation speed of an internal combustion engine when the regeneration process is executed. When executing the regeneration process, the CPU increases a filling efficiency of the internal combustion engine.

Vehicle control system

A power supply apparatus of a vehicle includes: auxiliary machines electrically connected between a battery and a converter; and a control device controlling inverters and the like based on a required vehicle power including a required charge discharge amount of the battery. The control device has a continuous voltage step-up mode and an intermittent voltage step-up mode. In the continuous voltage step-up mode, the control device calculates the required charge discharge amount based on electric power supplied from the battery. In the intermittent voltage step-up mode, the control device changes a method of calculating the required charge discharge amount to a method that calculates the required charge discharge amount based on electric power passing through the converter, and makes the required charge discharge amount smaller than the required charge discharge amount in the continuous voltage step-up mode.

Power supply apparatus of vehicle

Provided are a power supply device for a vehicle provided with a battery, a converter, and a controller, and a method for controlling the same. The controller controls the converter in a continuous boost mode in which the converter is continuously operated and an intermittent boost mode in which the converter is intermittently operated. The controller does not control the converter in the intermittent boost mode when a control that adjusts a reference point of a resolver of a motor generator is underway.

Power supply device for vehicle and method for controlling the same

A power supply apparatus of a vehicle includes: an engine and a first MG; a battery; a converter stepping up a voltage of the battery and supplying the stepped-up voltage to an inverter of the vehicle; and a control device controlling the converter in a continuous voltage step-up mode in which the converter is continuously operated and an intermittent voltage step-up mode in which the converter is intermittently operated. The control device estimates an SOC of the battery based on battery current IB flowing into and out of the battery, and forces the battery to be charged by the engine and the first MG when an estimate value of the SOC is lower than a predetermined lower limit. The control device suppresses an operation of the converter in the intermittent voltage step-up mode to a greater extent as the estimate value of the SOC is closer to the lower limit.

A control device controls a boost converter to be operated in one of a continuous voltage-boosting mode in which the converter is continuously operated and in an intermittent voltage-boosting mode in which the converter is intermittently operated. The control device permits the converter to be controlled in the intermittent voltage-boosting mode when an atmospheric pressure is equal to or greater than a first prescribed value, and inhibits the converter from being controlled in the intermittent voltage-boosting mode when the atmospheric pressure is less than the first prescribed value.

Power supply device of vehicle

An electric power supply device for a vehicle includes an electric storage device, a boost converter, and a controller. The boost converter boosts voltage of the electric storage device and supplies the boosted voltage to an electric load of the vehicle. The controller controls the boost converter in a continuous boost mode and an intermittent boost mode. The continuous boost mode is a mode in which the boost converter is in continuous operation. The intermittent boost mode is a mode in which the boost converter is in intermittent operation. The controller more restricts a charge/discharge demand of the electric storage device such that a charge/discharge demand of the electric storage device at a time when the boost converter is operated in the intermittent boost mode is more restrictive than a charge/discharge demand of the electric storage device at a time when the boost converter is operated in the continuous boost mode.

Growing community of inventors

Toyota, Japan

Suguru Kumazawa