Exponential generation in an adaptive braking system by charge transfer

Claim 1

In an adaptive braking system for wheeled vehicles using speed logic wherein a first speed signal correlated to the speed of some structure of said vehicle is generated and a reference speed signal related to said first speed signal is generated and wherein a braking force modulator responds at least in part to a predetermined relationship of at least one of said first speed and said reference speed signals with another signal, means for generating said another signal comprising: a first charge storage means; a second charge storage means, said another signal being generated across said second charge storage means; means for conveying charges from said first charge storage means to said second charge storage means, said first charge storage means, said second charge storage means and said means for conveying charges comprising a time constant circuit; a source of relatively constant potential; switching means for normally impressing said relatively constant potential on said second charge storage means and for simultaneously impressing a signal related to said first speed signal on said first charge storage means; and, means for generating an initiate signal at a predetermined point in the brake control cycle of said adaptive braking system, said switching means being responsive to said intiate signal for interrupting communication of the signal related to said first speed signal from said first charge storage means and for interrupting the application of said relatively constant potential to said second charge storage means, whereby the charges stored on said first and second charge storage means will equalize through said means for conveying to thereby generate said another signal.