초록 ▼

An electric control system is provided for a motor vehicle which automatically disconnects electric loads from the battery of the vehicle when the vehicle is not in use, and in the event that the driver leaves the vehicle without turning off the headlights, radio, or other accessories. The control s

An electric control system is provided for a motor vehicle which automatically disconnects electric loads from the battery of the vehicle when the vehicle is not in use, and in the event that the driver leaves the vehicle without turning off the headlights, radio, or other accessories. The control system is connected to the battery of the vehicle, as well as to the generator and to the ignition switch. The system senses excess current from the battery under conditions when the generator is not functioning and when the ignition is turned off. However, a particular current threshold is established, so the system will not respond to normal current drain, such as from electric clocks, and the like. Also, a predetermined time delay is built into the system, so that the headlights, and other accessories will not be turned off the moment the driver stops his vehicle and turns off the ignition. However, should the excess currents from the battery persist beyond a predetermined time interval, the control system operates to disconnect the battery, or at least to reduce its current drain below a particular level.

대표청구항 ▼

An electrical control system for connection into the electrical system of an automotive vehicle for controlling the connection between a source of electrical energy and at least one electrical energy consuming device in the vehicle, the electrical system of the vehicle including a battery and a gene

An electrical control system for connection into the electrical system of an automotive vehicle for controlling the connection between a source of electrical energy and at least one electrical energy consuming device in the vehicle, the electrical system of the vehicle including a battery and a generator together constituting said source of electrical energy, said electrical energy consuming device drawing excessive electric current from said source sufficient to discharge the battery when the generator is inoperative, and an ingnition switch for connecting said source to the ignition system of the vehicle; said control system including: a current sensative relay connected between said source and said electrical energy consuming device; a voltage sensitive relay connected across said generator; relay circuitry controlled by said current sensitive relay and by said voltage sensitive relay to terminate the excessive current flow to the energy consuming device in the event fthe current flow through the current sensitive relay exceeds a predetermined current threshold and when the voltage across the generator drops below a predetermined voltage threshold; a further relay connected to the ignition switch and having contacts connected in said relay circuitry for rendering said relay circuitry active only when the ignition switch is open; and timer means connected to said relay circuitry to render said relay circuitry effective only after a predetermined time interval.