Honda Motor Co., Ltd.

Kosuke Moro

Hiroaki Ninomiya

Shinichi Kitajima

Kohei Hanada

Ryuji Sato

Naoaki Takebe

A vehicle which can improve fuel consumption without a driver feeling uncomfortable is provided. The vehicle includes: a hydraulic pressure sensor for acquiring a brake torque value which increases in accordance with a stepping-in amount of a brake pedal by the driver, and an ECU which automatically stops an engine after a basic time has elapsed since a basic condition is satisfied and then automatically restarts the engine. The ECU automatically stops the engine before the basic time elapses, when an increment of the brake torque value from a reference value after the basic condition is satisfied is equal to or greater than an additional stepping judgment value, and a shortened time shorter than the basic time has elapsed.

Start and stop control for a vehicle

A vehicle equipped with an automatic stop/restart system for an internal combustion engine includes a hydraulic continuously variable transmission and a parking mechanism. The continuously variable transmission changes power of the internal combustion engine using hydraulic pressure boosted by rotational driving force of the internal combustion engine. The parking mechanism holds the vehicle stationary by locking, with a locking member, the rotation of a power transmitting member between the internal combustion engine and driving wheels when a shift position is in a parking range. In an automatic stop state of the internal combustion engine, when the shift position is in the parking range and brakes are turned off, an electronic control unit executes restart if an inclination angle of the vehicle is greater than or equal to a predetermined value, and maintains the automatic stop state if the inclination angle is smaller than the predetermined value.

Automatic stop/restart system for internal combustion engine

A cooling system includes: a shutter grille provided to an air guide port configured to guide air to a power compartment in which a power source of a vehicle is installed; a radiator configured to radiate heat from coolant for cooling the power source; a radiator fan configured to send the air to the radiator and the power source; a shutter grille controller configured to control opening and closing of the shutter grille; and a radiator fan controller configured to control the radiator fan. If a power source load on the power source is less than predetermined power source load, and if an air conditioning load on an air conditioner is equal to or greater than predetermined air conditioning load, the shutter grille controller and the radiator fan controller operate the radiator fan with the shutter grille closed.

Growing community of inventors

Wako, Japan

Kosuke Moro