Patent ID: 9139188
Filing Date: 2015-09-22
Classification: B60W,Y02T

Abstract:
1. A method of using prediction control for a hybrid work machine to predetermine strategies for operating an engine and hybrid power systems in the hybrid work machine, the method comprising: accessing electronic position data for the hybrid work machine wherein the electronic position data comprises three dimensional position data including a height above sea level; accessing electronic plan data for the hybrid work machine wherein the electronic plan data is in three dimensions including the height above sea level and comprises a start point, an end point and a proposed plan for traveling from the start point to the end point; accessing load data for the hybrid work machine; determining a power strategy based at least on changes in the height above sea level along the proposed plan wherein the power strategy comprises an engine management strategy including a speed of the engine for segments of the proposed plan and a hybrid management strategy including when to engage the hybrid power systems for segments of the proposed plan, wherein determining the power strategy comprises analyzing the electronic position data, the electronic plan data and the load data, and wherein the segments include flat segments, negative grade segments and positive grade segments; and executing the power strategy at a later time when the hybrid work machine is traveling along the propose plan based on a location of the hybrid work machine along the proposed plan, including executing the engine management strategy to control the speed of the engine for the segments of the proposed plan, and executing the hybrid management strategy to engage the hybrid power systems for segments of the proposed plan.