Apparatus for safety braking of vehicles
First Claim
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1. The combination with at least one wheel of the vehicle traveling upon wheels of:
- hydraulic motor means attached to said wheel;
hydraulic pump means hydraulically connected to said motor, by a feed line and a return line;
a connection from said feed line to one port of a double acting hydraulic cylinder;
a connection from said return line to a second port of said double acting hydraulic cylinder;
a bypass line between the ports of said double acting cylinder;
means activated by said double acting hydraulic cylinder to activate an hydraulic brake system on said vehicle; and
means to interrupt the flow of hydraulic fluid from the said feed line and return line to the said double acting hydraulic cylinder.
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Abstract
A method and an apparatus for performing said method, for the safety braking of automotive vehicles wherein a trailer is pulled by a prime mover, in such manner so as to eliminate the problems of jack-knifing and the like on sudden stops, and wherein a feature of the method and apparatus involves the dynamic augmentation of the braking torque of an over-driven motor, where the motor is connected to the trailer wheels and the friction brake is added to the negative torque of the over-driven motor in proportion to the negative torque generated by the over-driven motor during deceleration.
9 Citations
5 Claims
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1. The combination with at least one wheel of the vehicle traveling upon wheels of:
- hydraulic motor means attached to said wheel;
hydraulic pump means hydraulically connected to said motor, by a feed line and a return line;
a connection from said feed line to one port of a double acting hydraulic cylinder;
a connection from said return line to a second port of said double acting hydraulic cylinder;
a bypass line between the ports of said double acting cylinder;
means activated by said double acting hydraulic cylinder to activate an hydraulic brake system on said vehicle; and
means to interrupt the flow of hydraulic fluid from the said feed line and return line to the said double acting hydraulic cylinder. - View Dependent Claims (2, 3, 4, 5)
- hydraulic motor means attached to said wheel;
Specification