Method for powering and terminating operation of vehicle accessories with engine off
OwnerFrank J Perhats, Sr.inventor
Life of this patent
Estimating the term…
Abstract
The intent of this invention is to minimize the possibility of exhausting the vehicle battery while still permitting operation of specific accessories with the engine off. The invention proposes to accomplish this by powering and terminating the operation of an accessory through and under the control of any type of no idle HVAC system or as a free standing auxiliary, accessory powering system having its own means of termination.
Claims14
An electrical system for powering an accessory of a vehicle, comprising:
- a constant on battery source;
- an ignition on battery source that is available only when the vehicle ignition is on;
- a transfer switch electrically connected to the vehicle accessory;
- an auxiliary power circuit having an input and an output connected to one another, the input also being connected to the constant on battery source and the output being connected to the transfer switch, the auxiliary power circuit having a termination switch intermediate the input and output for interrupting the circuit therebetween and a sensor assembly connected to the input and controlling the termination switch;
- the transfer switch being alternately connectable to one of the ignition on battery source and the output of the auxiliary power circuit.
A method for powering a vehicle accessory in a vehicle having a battery, an ignition switch, a constant on battery source and an ignition on battery source, the method comprising the steps of:
- connecting the vehicle accessory to a transfer switch;
- connecting the transfer switch to the ignition on battery source when the ignition switch is on and disconnecting the transfer switch from the constant on battery source when the ignition switch is on;
- connecting the transfer switch to the constant on battery source when the ignition switch is off and disconnecting the transfer switch from the ignition on battery source when the ignition switch is off;
- measuring a condition via a sensor;
- and
- disconnecting the constant on battery source from the transfer switch based on the condition measured by the sensor.
Dependencies are inferred from the claim text.