Fuel cutoff system for a motor vehicle

Patent · Tue Jan 06 04:00:00 EST 1987

OSTI ID:6838056

Ohkumo, H

A fuel cutoff system is described for a motor vehicle having an accelerator pedal comprising: sensing means responsive to the operation of the accelerator pedal for producing an accelerator signal having logic levels, one of which is a first level at the depression of the accelerator pedal and the other is a second level at the release of the pedal and the failure of the means; means for detecting the driving state of the motor vehicle and for producing a driving signal; failure detecting means having first and second states. The first state is responsive to the accelerator signal of the first signal and to second signals after the first signal for producing an output signal having a first level, and the second state is responsive to the accelerator signal of the second level for producing the output signal having a second level; gate means responsive to the accelerator signal, driving signal and output signal for producing a control signal; fuel supply control means responsive to the control signal for controlling the supply of fuel; the gate means being responsive to the accelerator signal of the second level, driving signal and output signal of the first level for producing the control signal for cutting off the fuel, and responsive to the accelerator signal of the second level and the output signal of the second level for producing the control signal for supplying the fuel.

• Assignee: Fuji Jukogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4633831
• OSTI ID: 6838056
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
ACCELERATION
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
FAILURES
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
SIGNALS
SPEED REGULATORS
VEHICLES