Throttle valve control system of internal combustion engine

Patent · Tue Apr 05 04:00:00 EDT 1988

OSTI ID:5004994

Kaneko, T; Okuno, I; Fujita, N

An internal combustion engine throttle valve control system is described comprising driving means for driving a throttle valve so that the opening of the throttle valve assumes a predetermined value in accordance with the amount of change in the position of an accelerator pedal, engine r.p.m. detecting means for detecting engine r.p.m. and outputting a signal representing the detected engine r.p.m. and control means for controlling the rate of driving the throttle valve which receive the signal output from the engine r.p.m. detecting means. It produces, in accordance with the rate of change in the position of the accelerator pedal, a first signal to drive the throttle valve at a first rate corresponding to the rate of change in the position of the accelerator pedal under a condition where the amount of change in the position of the accelerator pedal is not larger than a predetermined value and a second signal to drive the throttle valve at a second rate smaller than the first rate under the condition where the amount of change in the position of the accelerator pedal is larger than the predetermined value. The rate of change in the position of the accelerator pedal is larger than a predetermined value and the engine r.p.m. is smaller than a predetermined value and controls the driving means in accordance with the engine operating condition.

• Assignee: Mazda Motor Corp., Hiroshima
• Patent Number(s): US 4735181
• OSTI ID: 5004994
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPERATION
SIGNALS
VALVES
VELOCITY