Limited Tenders are invited for Electronic Controller
The mission was undertaken to give the company's customers additional assurance and confidence that an electronic controller
and propulsion system perform as specified in the harsh space environment where reliability, precision and control are paramount.
WANNER INTERNATIONAL says its exclusive new "Control Freak" electronic controller
provides motor speed control for Hydra-Cell Metering Solutions pumps (or Hydra-Cell bare shaft pumps in metering applications) and is able to control multiple pumps with Variable Frequency Drives (VFDs) from a single point and because motor speed is directly proportionate to flow rate in a Hydra-Cell pump, high accuracy can be achieved through the use of VFDs.
It uses an electronic controller
that interacts with various sets of sensors to read input such as vehicle speed, engine speed, clutch and brake pedal positions.
Availability with a complete electronic controller
It typically can consist of a hydraulic cylinder, toad control valves, directional control valves, sensors and an electronic controller
User-friendly and PC programmable, the electronic controller
easily connects to a computer through the electrically isolated RS232 communications port.
The pumps also feature the ability to use different pump mechanisms with the same electronic controller
Each evaporator has a dedicated electronic controller
and expansion valve and the Copeland Scroll condensing units comprise standard and electronic scroll compressors.
The H1 Pump with Integrated Automotive Control (H1 AC) is a hydraulic pump and integral electronic controller
with embedded application software programmed to control the entire vehicle propel transmission system.
The system achieves economies because it replaces gears, shaft, and the rest of the drivetrain with an electronic controller
and reduces energy consumption to save money over the long term.
About 25 pages of appendices cover analysis for current, torque, and transient response of the SR motor; circuit design and fabrication of a power electronic controller
for an SR motor using MOSFETS; and Pohl's method for predicting the air-gap.