System for regulating the traveling speed of a motor vehicle
First Claim
1. A system for regulating the traveling speed of a motor vehicle comprisingcomparator means for comparing an electrical sensed speed signal representative of the actual traveling speed of a motor vehicle and an electrical reference speed signal representative of a desired traveling speed of the motor vehicle and producing an output signal corresponding to the difference between said sensed speed signal and said reference speed signal;
- control means responsive to said output signal for controlling the traveling speed of the motor vehicle; and
selective delay circuit means coupled between said comparator means and said control means for delaying the supply of said output signal to said control means when the amplitude of said output signal is above a predetermined level and for supplying said output signal directly to said control means when the amplitude of said output signal is below said predetermined level whereby a smooth transition is provided when the desired speed is changed.
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Accused Products
Abstract
A system for regulating the traveling speed of a motor vehicle includes a comparator producing an output signal corresponding to the difference between a sensed speed signal and a reference speed signal, a control device responsive to the output signal from the comparator for controlling the proportion of fuel-air mixture supplied to an engine in the motor vehicle, and a selective delay circuit coupled between the comparator and the control device for delaying the supply of the output signal from the comparator to the control device when the amplitude of the output signal is above a predetermined level and for supplying output signals having an amplitude below the predetermined level directly to the control device such that the system will respond quickly to variations in sensed speed occurring from normal load conditions while providing a smooth transition when the desired speed is changed.
14 Citations
5 Claims
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1. A system for regulating the traveling speed of a motor vehicle comprising
comparator means for comparing an electrical sensed speed signal representative of the actual traveling speed of a motor vehicle and an electrical reference speed signal representative of a desired traveling speed of the motor vehicle and producing an output signal corresponding to the difference between said sensed speed signal and said reference speed signal; -
control means responsive to said output signal for controlling the traveling speed of the motor vehicle; and selective delay circuit means coupled between said comparator means and said control means for delaying the supply of said output signal to said control means when the amplitude of said output signal is above a predetermined level and for supplying said output signal directly to said control means when the amplitude of said output signal is below said predetermined level whereby a smooth transition is provided when the desired speed is changed. - View Dependent Claims (2, 3, 4, 5)
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Specification