Title:
FUEL PUMP CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3237321
Kind Code:
B2
Abstract:
PURPOSE: To increase a fuel pressure to a sufficiently high value and to relax the uncomfortable feeling of a passenger owing to the working noise of a fuel pump by controlling the fuel pump so that it is not driven until start ON is detected during a time in which a fuel pressure during Key-ON exceeds a given value.
CONSTITUTION: After fuel is fed with a pressure from a fuel tank 9 to a fuel pressure regulating valve 10 with the aid of a fuel pump 4, the fuel is injected through a fuel injection valve 2 to an internal combustion engine 1. Based on detecting signals from sensors 5-7, the fuel injection valve 2 is controlled by a control unit 3. In this case, the ON-state of each of the ignition switch 8a and the start switch 8b of a key switch 8 is detected. Meanwhile, a fuel pressure during ON of the ignition switch 8a is detected. As a result, control is made so that the fuel pump 4 is not run until ON of the start switch 8b is detected during a time in which a fuel pressure available during ON of the ignition switch 8a exceeds a given value.
Inventors:
Masakazu Yamada
Masakazu Ninomiya
Yasuo Sumisaka
Masakazu Ninomiya
Yasuo Sumisaka
Application Number:
JP17563093A
Publication Date:
December 10, 2001
Filing Date:
July 15, 1993
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M37/08; F02N11/08; (IPC1-7): F02M37/08; F02N11/08
Domestic Patent References:
| JP56124636A | ||||
| JP62251463A | ||||
| JP63126553U |
Attorney, Agent or Firm:
Tsutomu Adachi