초록 ▼

An electronic regulating device for regulating the rpm of an internal combustion engine having self-ignition in accordance with at least rpm, fuel quantity and accelerator-pedal position is proposed. The device has a PI regulator with feedback, for example, and is characterized in that the regulator

An electronic regulating device for regulating the rpm of an internal combustion engine having self-ignition in accordance with at least rpm, fuel quantity and accelerator-pedal position is proposed. The device has a PI regulator with feedback, for example, and is characterized in that the regulator itself is controllable in accordance with the respective rpm deviation. This is effected, with a view to the desired stability of operation, even in the presence of very steep characteristic curves, and the control is effected with a limitation of the respective maximum rpm deviation. To this end, one upper and one lower threshold characteristic curve are realized at either side of a static shutoff characteristic curve. These threshold curves are formed in accordance with rpm and accelerator-pedal position, and where there is a discrete regulator structure, in the case of limitation, they determine the voltage over the capacitor of the regulator determining the I component. With a view to the very steep characteristic curves which are desired, a feedback of the regulator output signal is provided, and the feedback component may have a proportional course or may follow a specific function.

대표청구항 ▼

An rpm regulating device in an electronic system for an internal combustion engine having an engine rpm sensor which generates an actual rpm signal, an engine idle rpm transducer which generates an idle rpm set point signal, and an accelerator pedal position sensor which generates a running rpm set

An rpm regulating device in an electronic system for an internal combustion engine having an engine rpm sensor which generates an actual rpm signal, an engine idle rpm transducer which generates an idle rpm set point signal, and an accelerator pedal position sensor which generates a running rpm set point signal, and a selection and comparison means connected to receive said actual rpm signal, said idle rpm set point signal, and said running rpm set point signal to control engine operation via a fuel injection member in response thereto, said means including, a comparison means connected to receive and compare instantaneous values of said running rpm set point signal, said idle rpm set point signal and said actual rpm signal, and to generate an rpm difference signal in dependence thereon, and a PI regulator means connected to said comparison means for receiving said rpm difference signal, in order to generate a fuel quantity demand signal to said engine for controlling said fuel injection member.