| 摘要 |
<p>A heating device, particularly an auxiliary vehicle heating device, in which there are disposed, a first temperature sensor at the inlet, and a second temperature sensor at the outlet of the heating device. The outputs of the two temperature sensors are connected with a circuit, so that the operating condition of the heat exchanger of the heating device can be constantly monitored. For the purpose of early detection of a tendency towards overheating of the heating device, appropriately, the temperature differential between the two temperature sensors is determined, and, based upon a predetermined threshold value, the heating device is turned off, if necessary, in order to prevent resultant damage. The outputs of the temperature sensors can also be integrated with a control unit for the performance of control functions and, based upon different switch points, control operation of the vehicle blower, the heating output, and/or the heat exchanger temperature.</p> |
