Abstract: A remote isolator interface uses a vehicle's OEM remote (or aftermarket remote door lock) entry signal to interface between the battery and aftermarket electrical equipment, electronically separating the OEM systems/battery from aftermarket systems such that a short or power spike in the aftermarket system does not damage the OEM system. The invention also shuts off power to the aftermarket systems when the vehicle doors are locked by OEM remote entry or electric door locks, and can be combined with a magnetic battery disconnect to allow electrical current to reach the aftermarket systems when the doors are unlocked. The invention can also be combined with a fused distribution panel to become a single source of power for any aftermarket equipment, thereby eliminating the need for an installer to cut into the OEM systems for a power source and thereby void the manufacturer's warranty.

Abstract: A method and an apparatus for controlling a roll-back prevention device, in which the existence of an open vehicle door is detected and a stationary state of the vehicle is detected. In the present invention, if there is an open vehicle door at the time when a stationary state of the vehicle commences or during a stationary state of the vehicle, the roll-back prevention device will not be activated.

Abstract: In methods and circuits for using associated circuitry to enhance performance of a micro-electromechanical switch, one of the method embodiments is a contact conditioning process including applying a time-varying voltage to the control element of a closed switch. In another embodiment, a voltage profile applied to the control element of the switch can be tailored to improve the actuation speed or reliability of the switch. In another method embodiment, the performance of a switch may be evaluated by measuring a performance parameter, and corrective action initiated if the switch performance is determined to need improvement. An embodiment of a circuit for maintaining performance of a micro-electromechanical switch includes first and second signal line nodes, sensing circuitry coupled to the signal line nodes and adapted to sense a performance parameter value of the switch, and control circuitry operably coupled to at least one terminal of the switch.