{"id":364,"date":"2021-04-20T04:22:54","date_gmt":"2021-04-20T04:22:54","guid":{"rendered":"https:\/\/snu.wiki\/?p=364"},"modified":"2021-04-20T04:22:54","modified_gmt":"2021-04-20T04:22:54","slug":"optimal-control-of-hybrid-electric-vehicles-based-on-pontryagins-minimum-principle","status":"publish","type":"post","link":"https:\/\/snurecl.com\/2021\/04\/20\/optimal-control-of-hybrid-electric-vehicles-based-on-pontryagins-minimum-principle\/","title":{"rendered":"Optimal Control of Hybrid Electric Vehicles Based on Pontryagin\u2019s Minimum Principle"},"content":{"rendered":"\n<p>Namwook Kim, Sukwon Cha, and Huei Peng<\/p>\n\n\n<p>Abstract:<br \/>A number of strategies for the power management of hybrid electric vehicles (HEVs) are proposed in the literature. A key challenge is to achieve near-optimality while keeping the methodology simple. The Pontryagin&#8217;s minimum principle (PMP) is suggested as a viable real-time strategy. In this brief, the global optimality of the principle under reasonable assumptions is described from a mathematical viewpoint. Instantaneous optimal control with an appropriate equivalent parameter for battery usage is shown to be possibly a global optimal solution under the assumption that the internal resistance and open-circuit voltage of a battery are independent of the state-of-charge (SOC). This brief also demonstrates that the optimality of the equivalent consumption minimization strategy (ECMS) results from the close relation of ECMS to the optimal-control-theoretic concept of PMP. In static simulation for a power-split hybrid vehicle, the fuel economy of the vehicle using the control algorithm proposed in this brief is found to be very close-typically within 1%-to the fuel economy through global optimal control that is based on dynamic programming (DP).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Namwook Kim, Sukwon Cha, and Huei Peng Abstract:A number of strategies for the power management of hybrid electric vehicles (HEVs) are proposed in the literature. A key challenge is to achieve near-optimality while keeping the methodology simple. The Pontryagin&#8217;s minimum principle (PMP) is suggested as a viable real-time strategy. In this brief, the global optimality of the principle under reasonable assumptions is described from a mathematical viewpoint. Instantaneous optimal control with an appropriate equivalent parameter for battery usage is shown [&hellip;]<\/p>\n","protected":false},"author":118,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,5],"tags":[37],"_links":{"self":[{"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/posts\/364"}],"collection":[{"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/users\/118"}],"replies":[{"embeddable":true,"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/comments?post=364"}],"version-history":[{"count":0,"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/posts\/364\/revisions"}],"wp:attachment":[{"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/media?parent=364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/categories?post=364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/snurecl.com\/wp-json\/wp\/v2\/tags?post=364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}