Abstract:
A safety control system (10) is provided for a vehicle (12), and includes a plurality of sensors (24) associated with the vehicle (12) configured to generate data related to at least one environmental characteristic. A system model generation unit (30) receives the data related to the at least one environmental characteristic, and to generate a system model based on the data. The system model represents a current environmental status of the vehicle (12) based on the at least one environmental characteristic. A learning unit (32) receives the system model and learn the system model through a plurality of executions using the data related to the at least one environmental characteristic for performing a risk assessment of an environmental familiarity of the system model, and generates an output value that determines at least one operating parameter of the vehicle (12) such that the vehicle (12) is operated based on the operating parameter.
Abstract:
A system includes a hybrid power train having a combustion torque device, an electrical torque device, a driveline mechanically coupled to the torque devices, a battery that exchanges energy with the driveline, and a torque input device that provides a torque request. The hybrid power train is at least partially parallel. The system includes a controller having modules to execute operations for rate control of the hybrid power train. A battery protection module determines a battery protection charge rate limit, a power train protection module determines a power train protection torque change limit, and a torque request module determines the torque request. A rate control module provides a torque balance parameter in response to the limits and the torque request. A torque control module provides an electrical torque and a combustion torque to the driveline in response to the torque balance parameter.
Abstract:
An embodiment is an apparatus for providing thermal management of a diesel aftertreatment device. The apparatus includes an intake throttle, at least one exhaust gas recirculation (EGR) valve coupled to the intake throttle, a turbine bypasss valve coupled to the at least one EGR valve and a control mechanism coupled to the intake throttle, the at least one EGR valve and the turbine bypasss valve for selectively actuating at least one of the valves based on an engine operation profile.
Abstract:
Various embodiments of an apparatus, system, and method are disclosed for controlling engine exhaust temperature. For example, according to one exemplary embodiment, an apparatus for controlling the temperature of engine output exhaust of an internal combustion engine 110 during a regeneration event on a particulate matter filter 150 includes a regeneration module 260 and an exhaust temperature manager 470. The regeneration module 260 is configured to determine a desired diesel oxidation catalyst (DOC)140 inlet exhaust temperature during a regeneration event. The exhaust temperature manager 470 is configured to determine an air-to-fuel ratio strategy for achieving a desired air-to-fuel ratio within the combustion chamber 111 for producing an engine output exhaust temperature approximately equal to the desired DOC inlet exhaust temperature 435. The air-to-fuel ratio strategy includes a first mode and a second mode.
Abstract:
An accessory drive motor configuration is disclosed. One embodiment of the accessory drive motor configuration is an apparatus including an internal combustion engine having a crankshaft, wherein the crankshaft is structured to provide traction power. The apparatus further includes an accessory drive system operably coupled to a shaft. The shaft is selectively coupled to an electro-mechanical device and selectively coupled to the internal combustion engine. The shaft extends through at least a portion of the electro-mechanical device.
Abstract:
A vehicle operating condition profile can be determined over a given route while also considering imposed constraints such as deviation from time targets, deviation from maximum governed speed limits, etc. Given current vehicle speed, engine state and transmission state, the present disclosure optimally manages the engine map and transmission to provide a recommended vehicle operating condition that optimizes fuel consumption in transitioning from one vehicle state to a target state. Exemplary embodiments provide for offline and online optimizations relative to fuel consumption. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability.
Abstract:
A system includes a vehicle having a hybrid power train. The hybrid power train has a battery pack with a number of cells. The system further includes a heat transfer device including a shape memory alloy (SMA). The SMA in a low temperature position provides a first heat transfer environment to the battery pack, and in a high temperature position provides a second heat transfer environment to the battery pack. The first heat transfer environment provides a first heat transfer amount to the battery pack, and the second heat transfer environment provides a second heat transfer amount to the battery pack. The second heat transfer amount is greater than the first heat transfer amount.
Abstract:
According to one exemplary embodiment, a virtual turbine speed sensor for a multi-stage turbocharger system (180) is disclosed. The multi-stage turbocharger system includes at least two sequential turbochargers (181, 182) each having a compressor (184, 186) and a turbine (183, 185). The virtual turbine speed sensor includes a compressor efficiency module (220) configured to estimate an efficiency of a first compressor of the at least two turbochargers, an inter-stage air temperature module (230) configured to estimate an inter-stage temperature of air between the at least two compressors, and a turbine speed module (240) configured to estimate a speed of a second turbine of the at least two turbochargers. The inter-stage temperature estimate of air is based at least partially on the efficiency of the first compressor and the speed estimate of the second turbine is based at least partially on the inter-stage air temperature estimate.
Abstract:
A method, apparatus, and system are disclosed for hybrid power system braking. In one embodiment, a deceleration input is received. In response to receiving the deceleration input, a target negative torque trajectory is determined. To achieve the target negative torque trajectory, a regenerative braking device and an electrical energy dissipation device are activated.
Abstract:
A method, apparatus, and system are disclosed for hybrid power system braking. In one embodiment, a deceleration input is received. In response to receiving the deceleration input, a target negative torque trajectory is determined. To achieve the target negative torque trajectory, a regenerative braking device and an electrical energy dissipation device are activated.