Method for determining a voltage level across an electric circuit of a powertrain
AssigneesGM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke Aktiengesellschaft
InventorsWei D. Wang, William R. Cawthorne, Aniket Kothari, Nicholas Kokotovich, Wei Ren, Bo Zhang
Life of this patent
Estimating the term…
Abstract
A method for determining a voltage level across an electrical circuit of a powertrain includes measuring a plurality of voltage levels and utilizing a comparison test between at least two voltage levels of the plurality of voltage levels to determine the circuit voltage level.
Claims19
A method for determining a circuit voltage level across an electrical circuit of a powertrain, the method comprising:
- measuring a plurality of voltage levels comprising first, second and third voltage levels each variously corresponding to respective ones of a voltage level measured across a battery of the electric circuit, a voltage level measured across an inverter of the electric circuit and a voltage level measured across a ground wire of a voltage divider of the electric circuit and a terminal of the battery of the electric circuit;
- utilizing a comparison test between at least two of the first, second and third voltage levels of the plurality of voltage levels to determine the circuit voltage level;
- and
- controlling power transfer within the powertrain based on at least the determined circuit voltage level.
A method for determining a circuit voltage level across an electrical circuit of a powertrain, the method comprising:
- measuring a plurality of voltage levels;
- utilizing a comparison test between at least two voltage levels of the plurality of voltage levels to determine the circuit voltage level;
- determining a difference between a first voltage level and a second voltage level of the plurality of voltage levels;
- determining a difference between the first voltage level and a third voltage level of the plurality of voltage levels;
- determining the circuit voltage level as the first voltage level if either the difference between the first voltage level and the second voltage level is less than a first threshold voltage level or the difference between the first voltage level and the third voltage level is less than a second threshold voltage level;
- and
- controlling power transfer within the powertrain based on at least the determined circuit voltage level.
A method for determining a circuit voltage level across an electrical circuit of a powertrain, the method comprising:
- measuring a first plurality of voltage levels;
- utilizing a difference between at least two voltage levels of the first plurality of voltage levels to determine a first circuit voltage level;
- measuring a second plurality of voltage levels;
- utilizing a difference between at least two voltage levels of a second plurality of voltage levels to determine a second circuit voltage level;
- and
- controlling power transfer within the powertrain based on one of the determined first circuit voltage level, the determined second circuit voltage level, and both the determined first circuit voltage level and the determined second circuit voltage level.
A method for determining a circuit voltage level across an electrical circuit of a powertrain, the method comprising:
- determining a first circuit voltage level at a first controller and a second circuit voltage level at a second controller;
- routing the determined first circuit voltage level from the first controller to a third controller;
- routing the determined second circuit voltage level from the second controller to the third controller;
- and
- controlling power transfer within the powertrain based on one of the determined first circuit voltage level, the determined second circuit voltage level, and both the determined first circuit voltage level and the determined second circuit voltage level.
Dependencies are inferred from the claim text.