Leveling control for motor vehicles
First Claim
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1. A leveling system for a vehicle which includes a chassis and a body, said system including:
- a source of hydraulic fluid under pressure;
a leveling means connected between said chassis and said body of said vehicle to raise and lower the body with respect to said chassis by hydraulic pressure supplied by said source of hydraulic pressure;
indicator means, including linkage between said chassis and said body to provide a signal related to the relative vertical distance therebetween; and
electronic circuit means including damping means for processing and damping said signal and for controlling said leveling means in dependence thereon, and wherein the improvement comprises;
said indicator means includes a housing attached to said chassis, said housing containing a converter for converting mechanical motion to an electrical signal and further includes a pivoting lever attached to said converter and to said chassis to thereby convert the relative motion of said chassis with respect to said body into said signal; and
said leveling means includes at least one solenoid valve, controlled by said electronic circuit means in dependence on said damped signal.
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Abstract
A leveling control mechanism for motor vehicles includes an electric pump and a solenoid valve for raising and lowering the vehicle body and a leveling switch with an electronic damping device. The periodic measurement of the distance from the vehicle axle to the vehicle body is carried out by a mechanical-electrical converter, which converts the rotation of a shaft into an electrical signal. During acceleration and deceleration of the vehicle, as well as during the occurrence of centrifugal forces, suitably situated inertial switches inhibit the response of the leveling control mechanism.
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Citations
10 Claims
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1. A leveling system for a vehicle which includes a chassis and a body, said system including:
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a source of hydraulic fluid under pressure; a leveling means connected between said chassis and said body of said vehicle to raise and lower the body with respect to said chassis by hydraulic pressure supplied by said source of hydraulic pressure; indicator means, including linkage between said chassis and said body to provide a signal related to the relative vertical distance therebetween; and electronic circuit means including damping means for processing and damping said signal and for controlling said leveling means in dependence thereon, and wherein the improvement comprises; said indicator means includes a housing attached to said chassis, said housing containing a converter for converting mechanical motion to an electrical signal and further includes a pivoting lever attached to said converter and to said chassis to thereby convert the relative motion of said chassis with respect to said body into said signal; and said leveling means includes at least one solenoid valve, controlled by said electronic circuit means in dependence on said damped signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification