System and method for idle mitigation on a utility truck with an electrically isolated hydraulically controlled aerial work platform

{
  "publication_number": "US11220160B2",
  "country": "US",
  "kind": "B2",
  "title": "System and method for idle mitigation on a utility truck with an electrically isolated hydraulically controlled aerial work platform",
  "abstract": "An idle mitigation system for a bucket truck which includes an alternate source of power for the vehicle air conditioner which is coupled to the hydraulic system of the bucket truck which is hydraulic system is alternately powered by an electric motor which when run in reverse can charge batteries.",
  "claims": [
    "1. A method associated with an idle managed and air conditioned truck-mounted, hydraulically manipulated and electrically insulated aerial work platform, the method comprising the steps of: providing an alternate source of rotary power for driving an air conditioning compressor on a vehicle where a primary source of rotary power for driving the air conditioning compressor has a first engine connection with an engine of the vehicle; driving an auxiliary hydraulic pressure generator which has a first electrical connection to a source of stored electric energy; causing said alternate source of rotary power for driving an air conditioning compressor to drive said air conditioning compressor when said primary source of rotary power for driving the air conditioning compressor is unavailable; and said alternate source of rotary power for driving said air conditioning compressor is configured to utilize said primary source of rotary power for driving the air conditioning compressor, when said engine of the vehicle is running, to charge said source of stored electric energy.",
    "2. The method of claim 1 wherein said alternate source of rotary power for driving an air conditioning compressor comprises: a hydraulic pump.",
    "3. The method of claim 2 wherein said alternate source of rotary power for driving an air conditioning compressor further comprises a hydraulic motor.",
    "4. The method of claim 3 wherein said alternate source of rotary power for driving an air conditioning compressor further comprises a first electric motor.",
    "5. The method of claim 1 wherein said alternate source of rotary power for driving an air conditioning compressor comprises said first electrical connection; source having a first electrical connection to a source of stored electric energy.",
    "6. A system associated with an idle managed and air conditioned truck-mounted, hydraulically manipulated and electrically insulated aerial work platform, the system comprising: a compressor drive system for providing an alternate source of rotary power for driving an air conditioning compressor on a vehicle where a primary source of rotary power for driving the air conditioning compressor has a first engine connection with an engine of the vehicle, wherein said first engine connection with an engine of the vehicle transmits rotary power solely through a plurality of mechanical connections; a compressor drive system controller configured to cause said compressor drive system to drive said air conditioning compressor when said primary source of rotary power is unavailable; a battery for providing electric energy to said compressor drive system; a primary hydraulic pressure generator with a primary source of driving the hydraulic pressure generator has a second engine connection to the engine of the vehicle; and an auxiliary hydraulic pressure generator with a primary source of driving the auxiliary hydraulic pressure generator has a first electrical connection to a source of stored electric energy.",
    "7. A system associated with an idle managed and air conditioned truck-mounted, hydraulically manipulated and electrically insulated aerial work platform, the system comprising: a compressor system for providing an alternate source of power for an air conditioning compressor on a vehicle where a primary source of rotary power for driving the air conditioning compressor has a first engine connection with an engine of the vehicle; a compressor system controller configured to cause said compressor system to drive said air conditioning compressor when said primary source of rotary power is unavailable; a battery for providing electric energy to said compressor drive system; a power take off (PTO) pump with a primary source of driving the PTO pump having a second engine connection to the engine of the vehicle; and a hydraulic pump with a primary driving source having a first electrical connection to a source of stored electric energy.",
    "8. A method associated with an idle managed and air conditioned truck-mounted, hydraulically manipulated and electrically insulated aerial work platform, the method comprising the steps of: providing an alternate source of power for driving an air conditioning compressor on a vehicle where a primary source of power for driving the air conditioning compressor has a first engine connection with an engine of the vehicle; driving an auxiliary hydraulic pressure generator which has a first electrical connection to a source of stored electric energy; causing said alternate source of power for driving an air conditioning compressor to drive said air conditioning compressor when said primary source of power for driving the air conditioning compressor is unavailable; and said alternate source of power for driving said air conditioning compressor is configured to utilize said primary source of power for driving the air conditioning compressor, when said engine of the vehicle is running, to charge said source of stored electric energy."
  ],
  "description_excerpt": "The present invention generally relates to utility bucket trucks with insulated aerial work platforms, and more particularly relates to idle mitigation systems for use on insulated bucket trucks with hydraulic in-the-bucket controls.\n\nIn the electrical and telecommunications industries, elevated work platforms (EWPs), such as aerial devices, are commonly used to position personnel for work on utility lines, utility poles, transformers, and other elevated equipment.\n\nSuch devices are also used for a range of other applications such as tree trimming, photography, and street and spotlight maintenance. These devices typically include a telescoping and/or articulating boom mounted on a truck bed or otherwise supported by a vehicle chassis. A personnel-carrying platform, also referred to as a bucket or basket, (which is often electrically isolated from the ground to protect the occupant from electrocution) is attached to a portion of the boom distal the vehicle chassis (i.e., the boom tip). Using a control interface located at the platform, for example, an operator may adjust the rotation, extension and articulation of the boom to best position the platform for access to a work site.\n\nThese trucks typically have a low duty cycle of hydraulic usage during a work day.\n\nTo preserve the ability to have full on demand access to hydraulics and/or air conditioning, these trucks are often left idling much of the day.\n\nThese trucks are often left idling much of the day to provide cabin comfort such as air conditioning.",
  "cpc": [
    "B60H 1/3222",
    "B60H 1/00428",
    "B60H 1/0045",
    "B60H 2001/3273",
    "B60K 2025/026",
    "B60K 25/02",
    "B66F 11/044",
    "Y02T 10/88"
  ],
  "ipc": [
    "B60H 1/00",
    "B60H 1/32",
    "B60K 25/02",
    "B66F 11/04"
  ],
  "assignees": [
    "Terex USA LLC"
  ],
  "inventors": [
    "Tyler Craig Henderson"
  ],
  "filing_date": "2017-09-11",
  "publication_date": "2022-01-11",
  "grant_date": "2022-01-11",
  "priority_date": "2016-09-09",
  "application_number": "US-201715700301-A",
  "family_id": "61557422",
  "cited_by_count": 2,
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}