| 摘要 |
Unique apparatuses, systems, methods, and techniques for control of engine systems are disclosed. One embodiment is a unique controls process providing engine start/stop functionality. In one form, the controls process includes engine stop controls which evaluate a plurality of engine stop request conditions and a plurality of engine stop capability conditions, as well as engine start controls which evaluate a plurality of engine start request conditions and a plurality of engine start capability conditions. |
| 主权项 |
1. A method comprising:
providing a vehicle system including an engine, a plurality of engine accessories configured to be selectably driven by torque output of the engine, an aftertreatment system configured to receive exhaust from the engine during operation, a motor/generator system operatively coupled with the engine system, an energy storage system operatively coupled with the motor/generator system, an engine controller operatively coupled with the engine, the aftertreatment system, the motor/generator system and the energy storage system, and a plurality of operator controls in operative communication with the engine controller; while the engine is running, operating the control system to conditionally stop the engine based upon a plurality of stop request criteria and a plurality of stop capability criteria; and after the engine has stopped, operating the control system to conditionally start the engine based upon a plurality of start request criteria and a plurality of start capability criteria; wherein the stop request criteria account for a condition of the operator controls, a velocity condition of the vehicle system, an operating condition of the vehicle accessories, an operating condition of the engine, and a request provided by a second controller external to the engine controller. |
