US 10,579,017 B2 · Processor controlled energy harvester system optimized for mobile platforms

Abstract

Computer-processor controlled energy harvester system optimized for use on mobile platforms. The system uses a plurality of oscillating weight type energy collectors, each configured to store the energy from changes in the system's ambient acceleration as stored mechanical energy. The energy collectors are configured to move between a first position where the energy collector stores energy, to a second position where the energy collectors release stored energy to a geared electrical generator shaft, thus producing electrical energy, often stored in a battery. A plurality of processor controlled electronic actuators control when each energy collector stores and releases energy. The processor can use battery charge sensors, and suitable software and firmware to optimize system function. To facilitate use on mobile platforms, the processor also uses input from a 3-axis accelerometer to dynamically reconfigure the energy collectors according to the present major directions of ambient acceleration.

An energy harvester system configured for mobile platforms, said system comprising:

a computer processor;
at least one electrical generator comprising at least one moveable generator gear;
at least one support base configured to attach to a mobile platform;
a plurality of energy collectors movably connected to said support base, each energy collector aligned and configured to, in a first position, store ambient acceleration energy along at least one direction of ambient acceleration as stored mechanical energy, and in a second position to release said stored mechanical energy to at least one moveable generator gear;
wherein said each of said energy collectors further comprises:
an energy collector base attached to a surface of said support base;
a central axial member attached to said energy collector base;
a pendulum member rotatably connected to said central axial member, said pendulum member actuated by ambient acceleration and rotated in one of a clockwise direction and a counterclockwise direction;
a geared case encircling said central axial member, rigidly attached to said pendulum member, and running along a base groove configured in said energy collector base, said geared case comprising a plurality of gear tooth elements positioned on an outer surface of said geared case, said geared case configured to rotate along said base groove;
and
a spring element winding around said central axial member within said geared case, said spring element comprising a first end fixedly attached to said central axial member and a second end fixedly attached to an inner surface of said geared case, wherein said spring element is compressed by rotation of said pendulum member and stores said ambient acceleration energy as a compressed spring element, and wherein said compressed spring element is configured to release said stored ambient acceleration energy to rotate said geared case;
a plurality of electronic actuators and associated actuator cams attached to said support base, said electronic actuators configured to provide actuator force response to control signals from said computer processor, thus moving said associated actuator cam and providing cam force;
wherein each said energy collector is configured so that upon receiving said cam force, said energy collector moves from said first position to a second position that is coupled to said at least one moveable generator gear, thus releasing stored mechanical energy to said at least one moveable generator gear, and rotating said at least one moveable generator gear;
wherein said at least one electrical generator is configured to convert rotation of said at least one moveable generator gear into electrical energy;
wherein each said electronic actuator comprises a moving actuator component configured, upon response to control signals from said computer processor, to at least incrementally move said actuator cam towards a position that generates said cam force;
further comprising a battery configured to receive electrical energy from said electrical generator, and a battery charge sensor;
further comprising a 3-axis accelerometer sensor, wherein said computer processor is configured to use said 3-axis accelerometer sensor to compute an amount of stored ambient acceleration energy stored in at least some of said plurality of energy collectors, and to use said amount of stored ambient acceleration energy to control an operation of said electronic actuators;
wherein said computer processor and said actuator cams are configured so that when a battery charge of said battery is below a preset threshold, said computer processor is configured to operate said electronic actuator to sequentially and continually engage at least some of said plurality of energy collectors until said battery charge is above said preset threshold;
wherein each said electronic actuator further comprises an electronically controlled actuator element configured to expand or contract in response to electrical current signals from said computer processor;
wherein said processor is further configured to use said 3-axis accelerometer sensor to analyze directions of ambient acceleration and to further control an operation of at least some of said electronic actuators according to said directions of ambient acceleration and;
wherein said electronically controlled actuator element is an electroactive polymer element.

18 more elements

Processor controlled energy harvester system optimized for mobile platforms

Life of this patent

Processor controlled energy harvester system optimized for mobile platforms

Life of this patent

Abstract

Claims16