Internal-combustion engines – Charge forming device – Supercharger
Patent
1983-11-04
1985-04-02
Koczo, Michael
Internal-combustion engines
Charge forming device
Supercharger
F02D 2300
Patent
active
045080909
ABSTRACT:
The invention is directed to a method and apparatus for controlling the charger of an internal combustion engine as required by the operator of the vehicle. A first switch switches in the charger by energizing a relay when the accelerator pedal is depressed down to the end of the full-load position thereof. A second switch is connected in series with the first switch and interrupts the supply circuit for the relay thereby switching out the charger when the angular position of the throttle valve has dropped below a predetermined value. Self-holding contacts of the relay are connected in parallel with and bridge the first switch. In this way, the full-load curve without the charger switched in corresponds approximately to the curve defining engine operation with charger where switch-out of the charger is about to occur. In lieu of switching out the charger by releasing the accelerator pedal to a position corresponding to a predetermined constant angular position value of the throttle valve, this value at which switch-out occurs can be made dependent upon the rotational speed of the engine.
REFERENCES:
patent: 1630634 (1927-05-01), Porsche
patent: 1878210 (1932-09-01), Vincent
Koczo Michael
Ottesen Walter
Robert & Bosch GmbH
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