Abstract: A monitoring system to control lift axles on a vehicle having a means for sensing vehicle speed and direction, a means for measuring the weight on the lift axles and fixed axles on the vehicle, and a control module for controlling one or more lift axles on the vehicle is provided. The control module comprises a receiver for receiving information from the sensing means and the measuring means, a processor, and output means for causing the lift axles to be lifted when the vehicle is moving in reverse. The processor causes or permits the lift axle to 1) lower when the vehicle moves forward for a programmable distance, 2) assume or maintain a lifted position when the vehicle is below a predetermined weight, 3) assume or maintain a lowered position when the vehicle carries over a predetermined weight, and 4) equalize weight between the lift axles and the fixed axles.

Abstract: This invention provides a monitoring system to control liftable or steer axles on a truck or tractor-trailer by monitoring one or more input data types selected from the group consisting of speed and direction data, load data, turn signal data, engine data and emergency signal data. After processing the input data, a control module may control the lift axle electrical valving to lift one or more liftable axles, and may also lock the steerable axle in a straight position at a predetermined forward speed or adjust the pressure on the air suspension of a steer axle to equalize axle bearing weight.

Abstract: The present invention relates to a system for adjusting weight distribution throughout all axle groups of the truck and trailer. The trailer has at least one axle group mounted on a pair of rails attached to the frame of the trailer. These axle groups are locked in position on the rails by locking pins. The system for adjusting weight distribution according to the present invention measures the weight on every axle group on the truck and trailer. The measurement may be of weight directly by load cells etc. or indirectly, by taking measurements from the air suspension system to calculate weight. The measurements are delivered as an electrical signal to one or more microprocessors capable of receiving the electrical signals and calculating the optimum position of the axle group on the trailer. The position of the trailer axle groups relative to the rails is also determined and the position delivered to the microprocessor(s).

Abstract: The present invention relates to a system for automatically adjusting weight distribution throughout all axle groups of the truck and trailer. The trailer may have one or more axle groups mounted on a pair of rails attached to the frame of the trailer. The axle groups are locked in position on the rails by locking pins. The system for automatically adjusting weight distribution according to the present invention comprises means for measuring the weight on every axle group on the truck and trailer. The measurement may be of weight directly, where the means for measuring weight consists of load cells etc. or indirectly, where the means for measuring weight takes measurements from the air suspension system to calculate weight. The measurements are delivered as an electrical signal to one or more microprocessors capable of receiving said electrical signals and calculating the optimum position of the axle groups on said trailer.

Abstract: The present invention relates to a brake monitoring system for trucks, tractors, trailers or buses (class 6, 7 & 8 vehicles) using air brakes. In particular the present invention provides apparatus to monitor the braking system and the brake pad S-CAM positioning comprising a positioning transducer which can convert the rotational movement of the brake cam shaft S-CAM to an electrical signal. This signal is used as the input to a microprocessor system for further analysis and comparison in determining the condition of the S-CAM operations. The transducer signal not only provides the S-CAM position, but the speed of rotation both in braking and release of the brakes.

Abstract: The present invention relates to an apparatus to provide a monitoring device for detecting problems associated with the wheels of trucks and trailers. The apparatus comprises one or more individual axle spindle sensors, a programmable micro processor for receiving and processing the sensor signals to detect an alarm condition and alarm means to alert the driver of a problem with one or more of the wheels.