초록 ▼

A method and apparatus for adjusting a variable parameter of a dynamic system in response to a signal representative of the system performance so as to optimize system performance with respect to that parameter. A first signal related to system performance is extracted from the dynamic system and is

A method and apparatus for adjusting a variable parameter of a dynamic system in response to a signal representative of the system performance so as to optimize system performance with respect to that parameter. A first signal related to system performance is extracted from the dynamic system and is thereafter coupled to a plurality of performance index blocks, each of these blocks for operating on this signal according to a different predetermined characteristic transfer function. The output level from a selected performance index block is periodically sampled and the sampled level is compared with a previously sampled level to provide a positive or negative difference signal. A first pulsed signal is formed wherein pulses and zero levels are respectively representative of the incidence of opposite polarity levels in the difference signal. This first pulsed signal is converted into a second pulsed signal wherein the leading and trailing edges of the pulses correspond to the incidence of adjacent pulses in the first pulsed signal. The zero axis position is shifted in relation to the second pulsed signal to obtain positive and negative signals whose width is representative of the extent to which the variable parameter of the dynamic system must be inreased or decreased. The positive and negative signals are integrated to provide an output signal for adjusting this variable parameter.

대표청구항 ▼

An electronic circuit for adjusting a variable parameter of a dynamic system in response to a signal representative of the system performance so as to optimize the system performance with respect to that parameter, the circuit comprising: (a) means for extracting from the dynamic system a first sign

An electronic circuit for adjusting a variable parameter of a dynamic system in response to a signal representative of the system performance so as to optimize the system performance with respect to that parameter, the circuit comprising: (a) means for extracting from the dynamic system a first signal dependent upon the system performance; (b) a plurality of performance index blocks coupled to said means for extracting so as to receive said first signal each of said blocks for providing a different predetermined characteristic function of said first signal; (c) switch means coupling said means for extracting to said plurality of performance index blocks for selecting one of said performance index blocks; (d) means coupled to said performance blocks for periodically sampling and comparing the output level from a selected performance index block with a previously sampled level and for providing a difference signal indicative of whether the result of said comparison is positive or negative; (e) means coupled to said means for sampling and comparing for providing a first pulsed signal wherein pulses and zero levels are respectively indicative of the incidence of opposite polarity levels in said difference signal; (f) means coupled to said means for providing a first pulsed signal for converting said first pulsed signal into a second pulsed signal wherein the leading and trailing edges of the pulses correspond to the incidence of adjacent pulses in said first pulsed signal; (g) means for shifting the zero axis position in relation to said second pulsed signal to obtain positive and negative signals whose width is indicative of the extent to which the parameter to be varied must be increased or decreased; and (h) integrator means for receiving said positive and negative signals and for providing an output signal for adjusting said parameter.