Drive unit for driving fuel pump for small sized vehicle

摘要

A drive unit for driving a fuel pump for a small-sized vehicle, which is capable of reducing the current consumption of the fuel pump. A drive unit includes an ECU for controlling the fuel injection amount of a fuel injector. The ECU drives the fuel pump on the basis of control data for controlling the fuel injection amount of the fuel injector and of a power supply voltage of the fuel pump. For example, the fuel pump is driven under pulse-width modulation (PWM) in such manner that a pulse-width of a PWM signal is made larger with an increase in the injection amount of the fuel injector and is made smaller with a decrease in the fuel injection amount of the fuel injector.