Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1988-04-19
1989-09-05
Nelli, R. A.
Internal-combustion engines
Engine speed regulator
Idle speed control
F02M 306
Patent
active
048628514
ABSTRACT:
An idling engine speed controlling apparatus has a feed-back control system to regulate engine speed to a target speed such that a torque disturbance is directly detected to convert it into a signal so that an air-flow rate or ignition timing is controlled on the basis of the sum of the signal and a time-differential of the signal, or such that sub-feed-back compensation is given to the output end of a proportional and integral controller so that an amount of air flowing in a intake air conduit is compensated with the first-order-lag component or an amount of air is controlled in response to the first-order-lag component or the second-order-lag component or the sum of or the difference between these components, or such that an output from the proportional and integral controller or an output from the actuator is fed back to the input side of the controller so as to include a transfer function of the actuator through a detection circuit.
REFERENCES:
patent: 4716871 (1988-01-01), Sakamoto et al.
patent: 4721082 (1988-01-01), Hibibo et al.
patent: 4721083 (1988-01-01), Hosaka
patent: 4724810 (1988-02-01), Poirier et al.
patent: 4732125 (1988-03-01), Takizawa
patent: 4742807 (1988-05-01), Sakamoto et al.
patent: 4748951 (1988-06-01), Manaka et al.
Nishimura Yukinobu
Washino Shoichi
Mitsubishi Denki & Kabushiki Kaisha
Nelli R. A.
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