Toyota Jidosha Kabushiki Kaisha

Tomonori Nonami

Yoshihide Nakane

Takeshi Inoguchi

Shin Nomura

Makoto Hirose

An automobile configured to control a drive device, a brake device, a steering device such that traveling is performed in a driving mode selected by a driver from a full-autonomous driving mode, a semi-autonomous driving mode, and a manual driving mode, using information from a periphery recognition device that acquires information about the periphery of a vehicle, and a control method for the automobile are provided. An electronic control unit included in the automobile is configured to permit an override request due to an accelerator operation by the driver, when the driver has selected the semi-autonomous driving mode, and to restrict the override request due to the accelerator operation by the driver, when the driver has selected the full-autonomous driving mode, compared to when the driver has selected the semi-autonomous driving mode.

Automobile and control method for automobile

A braking/driving force control system, during control for maintaining a target vehicle speed, performs fuel cut and then, when a required braking/driving force for maintaining the target vehicle speed reduces, makes a downshift while fuel cut is continued. The braking/driving force control system causes a brake to generate a braking force such that the sum of a braking/driving force that a powertrain generates and the braking force that the brake generates agrees with the required braking/driving force. Thus, good fuel efficiency and riding comfort are obtained.

Braking/driving force control system

A braking/driving force control system, during control for maintaining a target vehicle speed, performs fuel cut and then, when a required braking/driving force for maintaining the target vehicle speed reduces, makes a downshift while fuel cut is continued. The braking/driving force control system causes a brake to generate a braking force such that the sum of a braking/driving force that a powertrain generates and the braking force that the brake generates agrees with the required braking/driving three. Thus, good fuel efficiency and riding comfort are obtained.

A brake/drive force control system includes: a requested acceleration calculating section; a powertrain control section calculating a minimum brake/drive force at the time of no fuel cut and a fuel-cut brake/drive force, generating larger one of a requested brake/drive force and the minimum brake/drive force when the requested brake/drive force is larger than the fuel-cut brake/drive force, and generating the fuel-cut brake/drive force when the requested brake/drive force is equal to or smaller than the fuel-cut brake/drive force; a brake control section generating a requested brake force; and a brake/drive force control section calculating the requested brake/drive force from requested acceleration, requesting the powertrain control section for the requested brake/drive force, acquiring the brake/drive force generated by a powertrain, and when the requested brake/drive force is smaller than the acquired brake/drive force, requesting the brake control section for a difference between the requested brake/drive force and the acquired brake/drive force.

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Toyota, Japan

Tomonori Nonami