| 摘要 |
A method can include determining a desired torque output from an engine system in response to a torque request, the engine system including an engine and a belt-driven starter generator (BSG). The method can include determining a current engine torque capacity. When the desired torque output is greater than the current engine torque capacity, the method can include (i) determining a maximum engine torque capacity, (ii) determining a current BSG torque capacity, (iii) commanding the BSG to operate as a torque generator or a torque consumer based on a difference between the desired torque output and the maximum engine torque capacity and a state of a battery system configured to power the BSG, and (iv) controlling the engine and the BSG to collectively generate the desired torque output at a flywheel of the engine. |
| 主权项 |
1. A method, comprising:
determining, at a controller for an engine system comprising an engine, the controller having one or more processors, a desired torque output from the engine system in response to a torque request, wherein the engine is configured to generate torque at a flywheel, and wherein the engine system includes a belt-driven starter generator (BSG) coupled to the flywheel by a belt and an absence of a variable tensioner; determining, at the controller, a current engine torque capacity; and when the desired torque output is greater than the current engine torque capacity:
(i) determining, at the controller, a maximum engine torque capacity;(ii) determining, at the controller, a current BSG torque capacity;(iii) commanding, by the controller, the BSG to continuously operate as either a torque generator or a torque consumer while the engine is running based on a difference between the desired torque output and the maximum engine torque capacity and a state of a battery system configured to power the BSG;(iv) maintaining, by the controller, a desired minimum tension on the belt without requiring the variable tensioner by continuously operating the BSG as either the torque generator or the torque consumer while the engine is running; and(v) controlling, by the controller, the engine and the BSG to collectively generate the desired torque output at the flywheel of the engine. |
