METHOD TO CONTROL A SOLENOID?S CURRENT RECIRCULATION PATH TO ENABLE A SPECIFIC ECU DESIGN TO BE APPLIED TO MULTIPLE TRANSMISSION ARCHITECTURES
A method for controlling a vehicle transmission includes electrically connecting a Transmission or Powertrain Control Unit (TCU or PCU) to the vehicle transmission, the TCU or PCU controlling operation of the transmission and having switchable power on a high side, and switchable ground on a low sid...
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Format | Patent |
Language | English |
Published |
29.08.2019
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Abstract | A method for controlling a vehicle transmission includes electrically connecting a Transmission or Powertrain Control Unit (TCU or PCU) to the vehicle transmission, the TCU or PCU controlling operation of the transmission and having switchable power on a high side, and switchable ground on a low side of a plurality of solenoids in a shared functional grouping configuration, proportionally controlling an amount of current through a load such as a solenoid via controlling an amount of time current is being sunk through the solenoid to ground and controlling an amount of time current is provided via an adaptable recirculation path in the TCU or PCU, the recirculation path minimizing current decay when the solenoid is driven in an OFF state. The TCU or PCU having a single hardware layout, but being electronically adaptable to control a plurality of transmission types and solenoid architectures based on any desired functional solenoid grouping. |
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AbstractList | A method for controlling a vehicle transmission includes electrically connecting a Transmission or Powertrain Control Unit (TCU or PCU) to the vehicle transmission, the TCU or PCU controlling operation of the transmission and having switchable power on a high side, and switchable ground on a low side of a plurality of solenoids in a shared functional grouping configuration, proportionally controlling an amount of current through a load such as a solenoid via controlling an amount of time current is being sunk through the solenoid to ground and controlling an amount of time current is provided via an adaptable recirculation path in the TCU or PCU, the recirculation path minimizing current decay when the solenoid is driven in an OFF state. The TCU or PCU having a single hardware layout, but being electronically adaptable to control a plurality of transmission types and solenoid architectures based on any desired functional solenoid grouping. |
Author | Philippart, Timothy P Horner, Robert J Grimes, Michael R |
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Snippet | A method for controlling a vehicle transmission includes electrically connecting a Transmission or Powertrain Control Unit (TCU or PCU) to the vehicle... |
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SubjectTerms | BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS |
Title | METHOD TO CONTROL A SOLENOID?S CURRENT RECIRCULATION PATH TO ENABLE A SPECIFIC ECU DESIGN TO BE APPLIED TO MULTIPLE TRANSMISSION ARCHITECTURES |
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