Abstract: A method providing solution of both of the problem of black smoke during the engine startup period and the problem of undershooting and hunting at the settling time. By adding at least an integral term QI to a basic injection quantity, feedback control of a fuel injection quantity of an engine is carried out. An initial integral term QI0, which is used during the engine startup, is predetermined. During the engine startup period, the integral term QI is set as “0” until an engine revolution number Ne reaches a predetermined startup revolution number Nes. When the Ne reaches the Nes, the initial integral term QI0 is used as the QI. The QI0 is preferably determined on the basis of one of, or both of, a water temperature and an atmospheric temperature. The Nes is preferably a value close to, or equal to, an idling revolution number Nei.

Abstract: A method providing solution of both of the problem of black smoke during the engine startup period and the problem of undershooting and hunting at the settling time. By adding at least an integral term QI to a basic injection quantity, feedback control of a fuel injection quantity of an engine is carried out. An initial integral term QI0 , which is used during the engine startup, is predetermined. During the engine startup period, the integral term QI is set as “0” until an engine revolution number Ne reaches a predetermined startup revolution number Nes. When the Ne reaches the Nes, the initial integral term QI0 is used as the QI. The QI0 is preferably determined on the basis of one of, or both of, a water temperature and an I atmospheric temperature. The Nes is preferably a value close to, or equal to, an idling revolution number Nei.

Abstract: An engine fuel injection control device for performing prescribed pilot injection and main injection on the basis of the operating state of the engine. The control device includes a pilot injection correction unit for correcting a pilot injection quantity (PQ) on the basis of an ambient temperature (TA). Therefore, the pilot injection quantity (PQ) can be selected in accordance with the ambient temperature (TA). Noise and white smoke can be kept within prescribed limits when the ambient temperature is low.

Abstract: When a user does shopping on a commodity purchase screen provided by a shop via the Internet, the user uses a payment reservation service provided by a claim management server. Then, the claim management server stores the shopping content of the user as a database and simultaneously stores both a payment amount and a settled/unsettled payment status in the shopping contents. The user views the list of unsettled payment of the shopping content provided by the claim management server, selects a shopping item, the price payment of which the user is going to settle, designates an account handling institute to use and settles payment online. The claim management server automatically does the check work of the shopping content, the price payment of which is settled.