Internal combustion engine and control device for fuel pump
AssigneeHonda Motor Co., Ltd.
InventorNatsuko Kitamura
Life of this patent
Estimating the term…
Abstract
A control device for a fuel pump includes a power storage and a discharger. The fuel pump includes an electromagnetic valve. The power storage is configured to store surge current generated upon stopping supplying electric power to the electromagnetic valve. One end of the power storage is connected to a negative electrode terminal of the electromagnetic valve. Another end of the power storage is connected to a power supply. The discharger is configured to connect the power storage and a positive electrode terminal of the electromagnetic valve upon starting supplying electric power to the electromagnetic valve to discharge an electric charge stored in the power storage.
Claims15
A control device for a fuel pump for driving an electromagnetic valve of the fuel pump by energization control, the fuel pump for compressing fuel, the control device comprising:
- a surge current consumption unit that is provided between a negative electrode terminal of the electromagnetic valve and ground, and configured to consume surge current which is generated when energization of the electromagnetic valve is stopped;
- a power storage unit configured to store the surge current which is generated when energization of the electromagnetic valve is stopped, one end of the power storage unit being connected between the negative electrode terminal and the surge current consumption unit, the other end being connected to a power supply;
- and
- a discharge unit configured to connect the power storage unit and a positive electrode terminal of the electromagnetic valve and to discharge an electric charge of the power storage unit when energization of the electromagnetic valve is started.
A control device for a fuel pump which includes an electromagnetic valve, the control device comprising:
- a power storage configured to store surge current generated upon stopping supplying electric power to the electromagnetic valve, one end of the power storage being connected to a negative electrode terminal of the electromagnetic valve, another end of the power storage being connected to a power supply;
- and
- a discharger configured to connect the power storage and a positive electrode terminal of the electromagnetic valve upon starting supplying electric power to the electromagnetic valve to discharge an electric charge stored in the power storage.
Dependencies are inferred from the claim text.