Honda Motor Co., Ltd.

Masanobu Eguchi

Shinichirou Wakou

Yoshihisa Tsuchiya

Shinji Yasuno

Kanao Kogure

Nobuyuki Akahoshi

Kazutada Sasaki

Daisuke Naoi

Hidefumi Nihei

Minoru Hasegawa

A stop control system for an internal combustion engine, which is capable of ensuring the comfort of vehicle occupants in a vehicle compartment and improving the fuel economy of the engine along with automatic stoppage of the engine during both a cooling operation and a heating operation of an air conditioner. When the engine is automatically stopped, the stop control system sets a target blowout temperature which is a target value of the temperature of air blown out from the air conditioner into a vehicle compartment, and acquires a fan voltage indicative of the air volume blown by a fan of the air conditioner. Further, the stop control system calculates stop allowable time based on the target blowout temperature and the fan voltage, and restarts the engine when engine stoppage time period (stoppage time period-counting timer value) has reached the stop allowable time.

Stop control system for internal combustion engine

A control system for an internal combustion engine, which is capable of properly determining timing for restarting the engine in a stopped state when idle stop control of the engine is executed during a heating operation of an air conditioner, thereby making it possible to ensure marketability and fuel economy performance in a well-balanced manner. The control system executes the idle stop control of the engine during the heating operation of the air conditioner. The control system includes an ECU. The ECU sets a lower limit blowout temperature, calculates an estimated blowout temperature, and controls the engine such that the engine is restarted when the estimated blowout temperature has become not higher than the lower limit blowout temperature.

Control system for internal combustion engine

A structure () for a front portion of a vehicle includes: a windshield lower member (); a cross member () fixed to the windshield lower member (); paired damper housings () disposed in front of both ends of the cross member (); and paired damper housing supports () arranged between the cross member () and the damper housing () to drain water. The windshield lower member () and the cross member () define a closed cross section K which extends in the vehicle width direction and serves as a second intake path (R). The cross member () has, in rear of the damper housing supports (), paired left and right outside air intake openings () for outside air to pass therethrough. The windshield base member () has a blower air intake opening () opened to face one of the pair of outside air intake openings ().

Structure for front portion of vehicle

The vehicle front structurehas a windshield lower, a cross memberfixed on the windshield lower, an upper memberextending in a front-back direction of a vehicle, a damper housingfixed inside the upper memberin a vehicle width direction and arranged in front the cross member, and a damper housing supportcoupling the cross memberwith the damper housing. A closed section K is formed by the windshield lowerand the cross member. The damper housing supporthas a damper housing fixed sectionwhich is fixed on an upper surfaceof the damper housingand a vertical wall sectionwhich extends backward from an inside of the damper housing fixed sectionin the vehicle width direction and is fixed on the cross member

Vehicle front structure

A stop control system for an internal combustion engine, which is capable of restarting the engine automatically stopped, in optimum timing, thereby making it possible to positively prevent occurrence of fogging of window glass of a vehicle compartment and improve fuel economy. The engine is connected to a compressor of an air conditioner. According to the stop control system, during idle stop, window glass temperature is calculated, and according to the calculated window glass temperature, limit humidity below which fogging of the window glass does not occur is set. When determining compartment humidity becomes equal to or higher than the limit humidity, the idle stop is terminated and the engine is restarted. When the weather is rainy or snowy, the determining compartment humidity is corrected. When vehicle compartment temperature is not lower than a first predetermined temperature, the window glass temperature is corrected.

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Saitama-ken, Japan

Masanobu Eguchi