In smaller vehicles that also supply the cooling aggregate during operation, longer off- times represent a risk for the cooling system. Vehicles with eutectic accumulator cooling that are only cooled by electric supply without individual regu-lation are true energy guzzlers.
This can be improved!
The task is clear:
For this purpose just some simple things are re-quired:
A battery operated, radio based system is available for mobile use, allowing for continuous logging of the temperature development inside the vehicle. At its operational base within radio distance of the receiver data is transmitted wireless to the company’s data system.
Apart from the control parameter settings re-ceived via radio, a local adjustment control includ-ing a contactor to switch power supply on and off is required to adjust the cooling process during parking times at night and on weekends. A digital sensor connected to the cooling aggregate can capture those operating times in addition and transmit them wireless as well. Thus the energy needs for the cooling system can be captured allowing for determination of saving potentials related to energy consumption.
The wireless sensor system GesySense provides the appropriate sensor-actuator module SAM 2PT-1D-1R offering two PT1000 sensors, a digital input and a switching relay. The GesySense Receiver\LAN is used as receiving station for data transmission from the vehicle and to transmit the control parameters to the module. The PC program GesySense LogIt is available for testing and evalu-ation purposes. The system can also be easily integrated in other applications.