Present-day trucking applications are increasing in complexity and placing an ever increasing demand on the truck engine to serve as the power source for operating a wide variety of auxiliary equipment. This equipment is demanding a high level of sophisticated speed control which must respond to greater requirements than simply speed governing.
A speed control must be responsive to multiple input control signals and capable of operating at numerous speed levels automatically.
This paper describes a recently developed speed control system consisting of a solid-state printed circuit control module coupled with an electrovacuum actuator.
This system is responsive to present day flexibility and operational demands. It also offers features such as multilevel speed control, remote speed, load droop, and stability adjustment, monitoring feed back, and responsiveness to control signals from multiple stations.