| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fuel injection controller capable of preventing occurrence of gasoline hammer and improving startability, with an inexpensive configuration.SOLUTION: A control unit 101 calculates an appropriate fuel injection quantity on the basis of information on a throttle sensor 103, an engine rotation speed, and the like. A drive circuit 202 drives an injector 201 on the basis of an instruction of the control unit 101. A signal processing unit 203 provided in an ASIC 204 transmits information indicating operation of the drive circuit 202 to the control unit 101 as a return signal. The control unit 101 includes a voltage monitoring unit 113 monitoring a power supply voltage supplied from a battery 214, controls a starter motor 209 starting an engine 18 with the battery 214 used as a power supply in response to operation of a starter switch 102 to be driven. If the voltage monitoring unit 113 detects that the power supply voltage falls below a first voltage Vth1 corresponding to a reset voltage value of the ASIC 204, the control unit 101 controls the drive circuit 202 to stop driving the injector 201 after passage of predetermined time.</p> |
