Vehicle control system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsSeiji Kuwahara, Kazumi Hoshiya, Norimi Asahara, Yoshio Ito, Takahito Endo, Tadashi Fujiyoshi
Life of this patent
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Abstract
A vehicle control system to reduce shocks under an autonomous mode is provided. The vehicle control system is configured to select an operating mode of a vehicle from a manual mode in which a driving force and a braking force are controlled manually by a driver, and an autonomous mode in which the driving force and the braking force are controlled autonomously. A controller is configured to execute a fuel cut-off control, and a threshold selected under the autonomous mode is set in such a manner as to terminate the fuel cut-off control earlier than under the manual mode.
Claims5
A vehicle control system that is configured to select an operating mode of a vehicle from a manual mode in which a driving force and a braking force are controlled manually by a driver and an autonomous mode in which the driving force and the braking force are controlled autonomously, comprising:
- a transmission connected to an engine, and
- a controller configured to:
- execute a fuel cut-off control, that stops a fuel supply to the engine while establishing an engine braking force, while controlling the engine;
- control the transmission to maintain a speed of the engine at a predetermined speed during execution of the fuel cut-off control;
- determine whether the selected operating mode of the vehicle is the manual mode or the autonomous mode;
- select a threshold for determining a termination of the fuel cut-off control based upon the selected operating mode;
- and
- determine whether a value meets the selected threshold,
- wherein the threshold selected is selected such that when the selected operating mode is the autonomous mode, the fuel cut-off control is terminated earlier than when the selected operating mode is the manual mode.
Dependencies are inferred from the claim text.