Coded data generation or conversion – Code generator or transmitter
Patent
1997-05-07
1998-12-08
Horabik, Michael
Coded data generation or conversion
Code generator or transmitter
341175, 34082506, 307 101, 236 38, G08C 1912
Patent
active
058476717
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention pertains to the arrangement of a vehicle auxiliary heater with a control device and an operating part in the interior space of a vehicle. The auxiliary heater and the control device are in the area of the floor of the cab. The operating part is located at a distance from the auxiliary heater and is connected to the control device via a switching connection means.
BACKGROUND OF THE INVENTION
In utility vehicles, e.g., trucks, vehicle auxiliary heaters are known to be arranged, e.g., under the sleeper berth, and an operating part is arranged separately in another area, preferably in the dashboard. The operating part is located in the dashboard in order to make it possible to operate it from the driver's seat. The heater and the operating part are connected to one another via cables, which are laid under the cover of the cab for optical reasons. If a vehicle auxiliary heater is to be installed later in a vehicle, a considerable effort is needed for retrofitting, especially in the area in which the cables are laid between the operating part and the heater.
SUMMARY AND OBJECTS OF THE INVENTION
The present invention pertains to the arrangement of a vehicle auxiliary heater of the type described in the introduction, which can be installed in a vehicle without compromising the function of the heater, installed in a very simple manner and, in particular to a heater which can be retrofitted into a vehicle.
The basic object of the present invention is accomplished by a heating unit located in an area of the floor of a cab of a vehicle. The heating unit includes a control device. An operating part is positioned in an interior space of the vehicle, and at a distance spaced from the heater unit. A connection means functionally connects the operating part to the heating unit so that instructions from the operating part can be transferred to the control unit to control the generation of heat. Also status information from the heating unit can be transferred to the operating unit to display the status of the heating unit to an operator. The bidirectional radio connection is a first transmitter and receiver part on the operating part and a second transmitter and receiver part on the heating unit. The bidirectional radio connection communicates over an HF carrier. The operating part is preferably positioned in the dashboard of the vehicle, an upper inner side wall of the vehicle, a rear wall of the vehicle, or a portion of the interior space of the vehicle. The operating part includes a microprocessor with means for timer functions, and also including a coding and decoding circuit. The timer functions are in a wired connection with the transmitting and receiving part of the operating part via a coding and decoding circuit. The microprocessor also includes means for diagnostic functions, input keys, display unit and a separate power supply unit. The heater unit on the floor of the cab can be connected to a central power supply unit of the vehicle.
The essence of the present invention is to replace the prior-art cable connection between the vehicle auxiliary heater, which is located in the area of the floor of the cab, and the operating part belonging to it, which is located in another area in the interior space of the vehicle in an area readily accessible to the driver, the front seat passenger or a person resting on the top sleeper berth, with a bidirectional radio connection. The cableless switching connection between the operating part and the heater does not require the complicated laying of cables within parts of the vehicle, some of which are poorly accessible. Thus, it is also unnecessary to remove the molding of the cab for laying cables in the case of retrofitting with the heating unit.
The heater and the operating part have one transmitter and one receiver each, especially each in the form of a plug-in HF module in the operating part and in the control device of the vehicle auxiliary heater to be operated.
Even though providing a radio control for heaters of motor v
REFERENCES:
patent: 4289195 (1981-09-01), Bellot
patent: 4328855 (1982-05-01), Iwata
patent: 5104037 (1992-04-01), Karg
Gortler Thomas
Haber Peter
Rich Wolfgang
Rugner Joachim
Sailer Harald
Horabik Michael
J. Eberspacher GmbH & Co.
Wong Albert K.
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