Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Toyo Radiator Co., Ltd.

Hiroshi Yoneguchi

Masahiko Asakura

Ryuji Sato

Yoshinari Sugita

Eisuke Horii

Tomohiro Watanabe

Takahiro Ohmi

Hideo Takeuchi

Shinichi Arai

Syumpei Tahara

Kohei Hanada

Tadayoshi Okada

Tsuyoshi Kawabe

Kensuke Yagi

Tadamichi Aoyama

Atsushi Arisaka

Takahiro Kuwabara

Shunichi Kawasumi

A control unit for a vehicle comprises an automatic engine stop-and-restart unit for stopping the engine responsive to predefined stop conditions and for restarting the engine responsive to predefined restart conditions, and a following-cruise control unit for controlling the vehicle to follow a vehicle ahead responsive to predefined following-cruise conditions. The automatic stop-and-restart unit for stopping and restarting the engine is configured to modify at least one of the stop conditions and the restart conditions during the following-cruise control.

Stop-and-restart control of a vehicle engine

A stop control system for a vehicle is provided, which is capable of stably performing cranking for restarting an internal combustion engine and positively preventing the vehicle from moving by properly increasing a braking force of the vehicle, during an idle stop. In the stop control system for a vehicle according to the present invention, the engineis cranked by the starter motorusing the power supplied from the battery, when restart conditions are satisfied (stepin FIG.). Further, the stop control system includes a hydraulic pumpdriven by the power supplied from the battery, for increasing the braking force of the vehicle V. During a stop of the vehicle V, it is determined whether or not the braking force of the vehicle V needs to be increased (FIG.), and the hydraulic pumpis controlled according to a determination result. Further, in a case where it is determined that the braking force of the vehicle V needs to be increased, the operation of the hydraulic pumpis inhibited for a predetermined time period during cranking (stepsin FIG.).

Stop control system for vehicle

A stop control system for a vehicle, which is capable of positively preventing movement of a vehicle by positively increasing a braking force of the vehicle during an idle stop. In the stop control system for a vehicle of the present invention, the engineis cranked by a starter motorusing power supplied from the batterywhen restart conditions are satisfied during an idle stop (stepin FIG.). Further, the stop control system includes a hydraulic pumpdriven by power supplied from the battery, for increasing the braking force of the vehicle V. During a stop of the vehicle V, when it is determined that the braking force of the vehicle V needs to be increased (F_BFREQ=1), the hydraulic pumpis activated. Further, if the restart conditions are satisfied during operation of the hydraulic pump, the cranking is inhibited to continue the operation of the hydraulic pump(stepstoin FIG.).

Provided are a vehicle configured such that if idling does not automatically stop, an in-vehicle display will occur immediately if a malfunction is the cause, thereby enabling a driver to have peace of mind and concentrate on driving, without giving the driver an unnecessary sense of unease; a vehicle diagnostic system therefor; and a vehicle diagnostic method. The vehicle comprises an idle stop error display unit provided corresponding to a specific ECU among a plurality of ECUs, and that indicates that an idle stop malfunction has occurred, being a malfunction corresponding to a second IS malfunction code, when a malfunction has occurred within a control target range for any among the plurality of ECUs, said malfunction recording the second IS malfunction code which does not cause the operation of a warning light requesting inspection or repair of an error that has occurred inside the vehicle.

Vehicle diagnostic system, vehicle diagnostic method, and vehicle

A vehicle stop control system capable of finely and properly determining traveling of a vehicle in a traffic jam to permit or inhibit automatic stop according to the determination result to ensure the effect of fuel economy improvement by automatic stop and avoiding inconveniences caused by frequent execution of automatic stop and restart. The system sets a precondition vehicle speed satisfaction flag to 1 when a vehicle speed becomes not lower than a precondition speed after an internal combustion engine was automatically stopped to permit automatic stop. Further, time after the vehicle speed passed a jam determination speed and until the vehicle speed passes the same again is acquired as passing time. When the passing time is shorter than a predetermined time period, the system determines that the vehicle is traveling in a jam, and resets the flag to 0 to inhibit automatic stop.

Vehicle stop control system

A base plate 20 is provided with an oil inflow hole 20b in the form of a through-hole. The oil inflow hole 20b includes an area overlapping oil inlet communication holes 1 of plates 5 within a region inside an annular grove 20a of the base plate 20, and has a planar shape extending beyond the outer rim of the overlapping area. Thus, in the base plate constituting a contact end when the oil cooler is mounted to the engine block, a decrease in communication resistance of the oil communication hole provided therein as well as a smooth circulation of oil is achieved.

Oil cooler for automobiles

Growing community of inventors

Wako, Japan

Hiroshi Yoneguchi