Acceleration warning device
First Claim
1. An acceleration warning and control system for motor driven vehicles having in combination speed measuring apparatus providing an output signal proportionate to and changing with the speed of vehicle, differentiating circuitry providing an output signal corresponding to the rate of change of the output signal from said speed measuring apparatus switch means for indicating an undesirable rate of acceleration and operated by a predetermined output signal from said differentiating circuitry, control warning means activated by said switch means and an activation switch for activating the system, said activation switch being open during initial acceleration from a standing start and closing to activate the system at a predetermined speed such that the system is only operational at speeds equal to and above the predetermined speed.
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Accused Products
Abstract
An acceleration warning system for motor driven vehicles. The system includes speed measuring apparatus providing an output to a differentiating circuit for determining the rate of change of vehicle acceleration, and means responsive to a predetermined output of the differentiating circuit for indicating when the acceleration of the vehicle is beyond a predetermined rate. The system may also include control means for automatically limiting the acceleration of the vehicle.
11 Citations
10 Claims
- 1. An acceleration warning and control system for motor driven vehicles having in combination speed measuring apparatus providing an output signal proportionate to and changing with the speed of vehicle, differentiating circuitry providing an output signal corresponding to the rate of change of the output signal from said speed measuring apparatus switch means for indicating an undesirable rate of acceleration and operated by a predetermined output signal from said differentiating circuitry, control warning means activated by said switch means and an activation switch for activating the system, said activation switch being open during initial acceleration from a standing start and closing to activate the system at a predetermined speed such that the system is only operational at speeds equal to and above the predetermined speed.
- 5. Acceleration and deceleration warning and control system for motor driven vehicles having in conbination speed measuring apparatus providing an output signal proportionate to and changing with the speed of the vehicle, differentiating circuitry providing an output signal corresponding to the rate of change in the output signal from said speed measuring apparatus, a first switch operated by a first predetermined signal output from said differentiating circuitry indicating unacceptable positive acceleration, a second switch operated by a second predetermined signal output from said differentiating circuitry indicating unacceptable negative acceleration, control warning means activated by said first and second switch and an activation switch for activating the system, said activation switch being open during initial acceleration from a standing start and closing to activate the system at a predetermined speed such that the system is only operational at speeds equal to and above the predetermined speed.
Specification