{"title":"基于电机特性和车辆动力学的无人驾驶电动汽车制动新策略","authors":"Wenfei Li, H. Du, Weihua Li","doi":"10.1504/IJPT.2019.10022573","DOIUrl":null,"url":null,"abstract":"Traditionally, vehicle braking generally follows the driver's braking intention. It is impossible for the driver to work out the optimal braking trajectory. However, unmanned vehicle can decide when to brake and how to brake. In this paper, we propose a braking scheme for unmanned electric vehicles. It adopts different braking control strategy according to different braking conditions. When the situation is urgent, the vehicle adopts emergency braking. Otherwise, the vehicle adopts normal braking. In the case of normal braking, the vehicle can automatically set the optimal braking trajectory. The setting of the braking trajectory is based on the characteristics of the motor and vehicle states. When the vehicle follows the set braking trajectory, the electric vehicles can obtain the maximum braking energy recovery. The simulation results show that the proposed braking method is able to achieve the maximum braking energy recovery in the case of normal braking.","PeriodicalId":37550,"journal":{"name":"International Journal of Powertrains","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new braking strategy based on motor characteristics and vehicle dynamics for unmanned electric vehicles\",\"authors\":\"Wenfei Li, H. Du, Weihua Li\",\"doi\":\"10.1504/IJPT.2019.10022573\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Traditionally, vehicle braking generally follows the driver's braking intention. It is impossible for the driver to work out the optimal braking trajectory. However, unmanned vehicle can decide when to brake and how to brake. In this paper, we propose a braking scheme for unmanned electric vehicles. It adopts different braking control strategy according to different braking conditions. When the situation is urgent, the vehicle adopts emergency braking. Otherwise, the vehicle adopts normal braking. In the case of normal braking, the vehicle can automatically set the optimal braking trajectory. The setting of the braking trajectory is based on the characteristics of the motor and vehicle states. When the vehicle follows the set braking trajectory, the electric vehicles can obtain the maximum braking energy recovery. The simulation results show that the proposed braking method is able to achieve the maximum braking energy recovery in the case of normal braking.\",\"PeriodicalId\":37550,\"journal\":{\"name\":\"International Journal of Powertrains\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-07-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Powertrains\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1504/IJPT.2019.10022573\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Powertrains","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/IJPT.2019.10022573","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
A new braking strategy based on motor characteristics and vehicle dynamics for unmanned electric vehicles
Traditionally, vehicle braking generally follows the driver's braking intention. It is impossible for the driver to work out the optimal braking trajectory. However, unmanned vehicle can decide when to brake and how to brake. In this paper, we propose a braking scheme for unmanned electric vehicles. It adopts different braking control strategy according to different braking conditions. When the situation is urgent, the vehicle adopts emergency braking. Otherwise, the vehicle adopts normal braking. In the case of normal braking, the vehicle can automatically set the optimal braking trajectory. The setting of the braking trajectory is based on the characteristics of the motor and vehicle states. When the vehicle follows the set braking trajectory, the electric vehicles can obtain the maximum braking energy recovery. The simulation results show that the proposed braking method is able to achieve the maximum braking energy recovery in the case of normal braking.
期刊介绍:
IJPT addresses novel scientific/technological results contributing to advancing powertrain technology, from components/subsystems to system integration/controls. Focus is primarily but not exclusively on ground vehicle applications. IJPT''s perspective is largely inspired by the fact that many innovations in powertrain advancement are only possible due to synergies between mechanical design, mechanisms, mechatronics, controls, networking system integration, etc. The science behind these is characterised by physical phenomena across the range of physics (multiphysics) and scale of motion (multiscale) governing the behaviour of components/subsystems.