发明名称 |
Method for determining run-curves for vehicles based on travel time |
摘要 |
A method reduces the computation time for determining optimal run-curves for a specific travel time of a vehicle along a route between two locations. The computation is partitioned between pre-processing and real-time steps. A set of weights μ are generated, and run-curves for the weights are obtained and stored during the pre-processing. State transition matrices can also be determined and stored during the pre-processing. During real-time, a specific travel time is obtained. The travel time is used to interpolate the weight μ for the specific travel time from the stored weights. The memory can be updated for each solution for a specific travel time to dramatically reduce the time to optimize the run-curves. |
申请公布号 |
US8838304(B2) |
申请公布日期 |
2014.09.16 |
申请号 |
US201213538794 |
申请日期 |
2012.06.29 |
申请人 |
Mitsubishi Electric Research Laboratories, Inc |
发明人 |
Xu Jingyang;Nikovski Daniel |
分类号 |
B61L27/04 |
主分类号 |
B61L27/04 |
代理机构 |
|
代理人 |
Brinkman Dirk;Vinokur Gene |
主权项 |
1. A method for determining an optimal run-curve for a vehicle under a constraint of travel time T along a route between two locations and controlling the vehicle to minimize consumption of energy, comprising off-line pre-processing and real-time processing, wherein the off-line preprocessing comprises the steps of:
generating a set of pairs of weights and corresponding travel times, wherein, for each weight and each travel time in each pair, the weight minimizes the energy consumed by the vehicle as a function of the travel time; storing, the pairs of weights and the corresponding travel times in a memory; and wherein the real-time processing comprises the steps of: receiving a specific travel time; determining the weight for the specific travel time using the set of weights; generating the run-curve for the vehicle based on the weight for the specific travel time, and operating the vehicle based on said run curve wherein the steps are performed in a processor. |
地址 |
Cambridge MA US |