Abstract:
An apparatus includes an engine friction module in operative communication with an engine and structured to interpret engine operation data indicative of an engine friction amount, and a stop/start module structured to compare the engine operation data with predetermined protective criteria that includes an engine friction threshold and to turn off the engine for at least a portion of time based on the engine friction threshold exceeding the engine friction amount.
Abstract:
Hybrid power systems include an internal combustion engine and a motor/generator connectable with the engine. A reefer unit is configured to receive power from the motor/generator via a reefer power system that includes an export power inverter and an energy storage device.
Abstract:
The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.
Abstract:
System comprising an internal combustion engine including a crankshaft, a crankshaft sprocket coupled to the crankshaft, an electric motor in mechanical communication with the crankshaft sprocket, a bidirectional engine position sensor coupled to the crankshaft sprocket, a controller in electrical communication with the bidirectional engine position sensor and a non-transitory memory having instructions that, in response to execution by a processor, cause the processor to determine a position of an engine component upon shutdown of the engine, store the position of the engine component at shutdown in the non-transitory memory, and control the electric motor at restart in response to the position of the engine component at shutdown are disclosed. Methods are also disclosed.
Abstract:
The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.
Abstract:
Systems and methods for implementing a start-stop feature on a vehicle powered at least in party by an internal combustion engine are described. The method includes receiving, at an electronic control unit (“ECU”) of the vehicle, an indication that the vehicle is in line at a drive-thru. The method further includes determining, by the ECU, a number of start-stop events anticipated during the drive-thru. The method includes determining, by the ECU, an approximate stop time for each of the number of start-stop events. The method further includes determining, by the ECU, that a battery of the vehicle has enough remaining charge to power a plurality of vehicle components during implementation of the start-stop feature. The method includes implementing, by the ECU, the start-stop feature in which the internal combustion engine is turned off for at least a portion of the time when the vehicle is stopped.
Abstract:
Systems and methods for implementing a start-stop feature on a vehicle powered at least in part by an internal combustion engine include receiving, at an electronic control unit (“ECU”) of the vehicle, an indication that the vehicle is in line at a drive-thru; determining, by the ECU, a number of startstop events anticipated during the drive-thru; determining, by the ECU, an approximate stop time for each of the number of start-stop events; determining, by the ECU, that a battery of the vehicle has enough remaining charge to power a plurality of vehicle components during implementation of the start-stop feature; implementing, by the ECU, the start-stop feature in which the internal combustion engine is turned off for at least a portion of the time when the vehicle is stopped
Abstract:
A gearbox includes a first shaft operatively coupled to an output of an engine, with the first shaft having a first longitudinal axis. A second shaft is operatively coupled to a driveshaft of an electric machine, the second shaft having a second longitudinal axis. The second longitudinal axis is non-coaxial with the first longitudinal axis. A geartrain operatively couples the first and second shafts. The geartrain is structured to passively switch between a first gear ratio and a different second gear ratio.
Abstract:
Apparatuses, methods, and systems for conditionally re-starting an internal combustion engine are disclosed. Certain exemplary embodiments evaluate information associated with a temperature of an accessory of an internal combustion engine and conditionally re-start the internal combustion engine after an engine shutdown based at least in part upon said information and a determination that a post-engine-shutdown temperature of the engine accessory would exceed a predetermined criterion. In certain embodiments the accessory includes a component of a turbocharger. In certain embodiments the accessory includes a component of an exhaust aftertreatment system.
Abstract:
Controls for improved drivability of a vehicle equipped with start/stop logic are disclosed. One exemplary embodiment is a method comprising stopping an internal combustion engine of the vehicle to achieve a target speed profile during slowing of the engine to reduce noise, vibration and harshness, and/or to achieve a target engine stop position. Another embodiment is a method for selecting between a nominal re-start mode and a delayed re-start mode where launching of the vehicle after a stop is delayed relative to the nominal start mode in response to a vehicle input.