A vehicle air compressor apparatus is provided for a heavy vehicle air braking system. The apparatus comprises a crankcase, and a cylinder head disposed on the crankcase. The cylinder head includes (i) an air inlet port through which air can be received fo...

A brake actuator is provided, in which a diaphragm, used in conjunction with a piston which compresses a parking brake-actuating spring, is arranged such that its outer peripheral region is captured between opposing housing flange portions such that a seal...

A motor controller unit facilitates modifying pressure thresholds and motor operation mode for an air compressor in a hybrid commercial vehicle as a function of vehicle air demand and comprises a processor configured to execute computer-executable instruct...

A motor controller unit facilitates modifying pressure thresholds for an air compressor motor in a hybrid commercial vehicle as a function of vehicle pitch and comprises a memory that stores computer-executable instructions for modifying compressor cut-in ...

An air dryer and reservoir assembly for providing compressed air from an air compressor (20) on a heavy motor vehicle which includes an air dryer (14) connected to receive compressed air from the air compressor and a secondary reservoir (12), including an ...