초록 ▼

The present invention relates to a control unit for vehicle-borne electrical equipment, that is, to a control unit for turning on vehicle-borne electrical equipment either periodically or at a predetermined or preset time, providing power to the equipment for a further predetermined or preset time,

The present invention relates to a control unit for vehicle-borne electrical equipment, that is, to a control unit for turning on vehicle-borne electrical equipment either periodically or at a predetermined or preset time, providing power to the equipment for a further predetermined or preset time, and then suspending supply of power to the electrical equipment. These functions are accomplished by a programmable timer power switch (PTPS) unit in combination with further control circuitry, each of the latter two elements having its own timer units or circuity.

대표청구항 ▼

In a control unit for controlling the application of power supplied by a battery to electrical equipment carried by a vehicle having an engine, comprising: switch means connected between said battery and said electrical equipment for selectively blocking and supplying power to said electrical equipm

In a control unit for controlling the application of power supplied by a battery to electrical equipment carried by a vehicle having an engine, comprising: switch means connected between said battery and said electrical equipment for selectively blocking and supplying power to said electrical equipment, and control means connected to said switch means for providing first and second control outputs to said switch means, said switch means responsive to said first control output for blocking power to said electrical equipment, and said switch means responsive to said second control output for supplying power to said electrical equipment; the improvement wherein said control means is responsive to shutting off of the engine of the vehicle for providing said first control output to said switch means, thereby blocking power to said electrical equipment, and wherein said control means comprises a timer which is responsive to shutting off of the engine of the vehicle for carrying out a timing operation, and wherein said control means is responsive to completion of the timing operation of said timer for providing said second control output to said switch means, thereby supplying power to said electrical equipment.