Abstract: The invention relates to an electronics system with a radio and a electronic control unit (ECU). There is a need for preventing an electronics system from interfering with operation of the radio. The system includes a communication link communicating a tuned frequency message from the radio to the ECU. The system also includes a frequency controller for varying the control frequency as a function of the tuned frequency message, a bandwidth associated with the selected radio frequency, a bandwidth associated with the radio frequency noise harmonics, and an odd number integer. The frequency controller causes the control frequency to be between minimum and maximum values. Thus, the frequency controller receives the tuned frequency message and varies the control frequency its radio frequency noise harmonics do not significantly interfere with the tuned frequency of the radio.

Abstract: The invention relates to an electrical system or circuit for a by-wire control system. The control system includes a hydraulic pump, a reservoir, a bi-directional function actuator, and solenoid operated valves for controlling the actuator in response to control signals from the electronic system. The electronic system includes first and second pairs of command device position sensors, a first channel and a second channel. Each channel includes main processing unit and a supervisory control unit. Each main processing unit is connected to a pair of the command device position sensors, and a pair of the solenoid operated valves.